E-print Network

Sample records for growth factor ii

  1. Selective Expression of Insulin-Like Growth Factor II in the Songbird Brain

    Biology and Medicine Websites

    Jarvis, Erich D.

    - bra finches. In canary HVC, monthly changes in IGF-II mRNA expression covaried with previously classes of projection neurons in the HVC of male canaries and zebra finches: (1) those that synapse onto in the recruitment of new RA-projecting neurons occur in adult canaries at times of the year when the birds develop

  2. Insulin-like growth factor 1 and hair growth

    University of California eScholarship Repository

    Su, Hung-Yi; Hickford, Jonathan G H; Palmer, Barry R; Bickerstaffe, Roy

    1999-01-01

    like growth factor-I on nitrogen balance and muscle proteinmuscle protein synthesis following treatment of diabetic rats with insulin-like growthgrowth factor I inhibits degradation and improves retention of protein in hindlimb muscle

  3. Biophysical characterisation of the hepatocyte growth factor - glycosaminoglycan interaction 

    Edinburgh, University of - Research Archive

    Johansson, Conny M.

    2011-11-23

    structural and hydrating support and interaction points for proteins of varied functions, for example growth factors and homeostasis regulatory proteins. Hepatocyte Growth Factor (HGF) is a protein growth factor that regulates cell growth, survival...

  4. Attenuation of corneal myofibroblast development through nanoparticle-mediated soluble transforming growth factor-? type II receptor (sTGF?RII) gene transfer

    MIT - DSpace

    Sharma, Ajay

    Purpose: To explore (i) the potential of polyethylenimine (PEI)-DNA nanoparticles as a vector for delivering genes into human corneal fibroblasts, and (ii) whether the nanoparticle-mediated soluble extracellular domain of ...

  5. Constraining the growth factor with baryon oscillations

    Astrophysics (arXiv)

    Domenico Sapone; Luca Amendola

    2007-09-18

    The growth factor of linear fluctuations is probably one of the least known quantity in observational cosmology. Here we discuss the constraints that baryon oscillations in galaxy power spectra from future surveys can put on a conveniently parametrized growth factor. We find that spectroscopic surveys of $5000 deg^2$ extending to $z \\approx 3$ could estimate the growth index $\\gamma$ within 0.06; a similar photometric survey would give $\\Delta\\gamma\\approx 0.15$. This test provides an important consistency check for standard cosmological model and could constrain modified gravity models. We discuss the errors and the figure of merit for various combinations of redshift errors and survey size.

  6. Singular subfactors of II_1 factors 

    Texas A&M University - TxSpace

    Wiggins, Alan Daniel

    2007-09-17

    II1 factor and G is a countable discrete group acting on P by outer automorphisms, we characterize the elements x of PoG such that x(PoH)x0 PoH for some subgroup H of G. We establish that proper finite index singular subfactors do not have the weak...

  7. Growth factor parametrization in curved space

    General Relativity & Quantum Cosmology (arXiv)

    Yungui Gong; Mustapha Ishak; Anzhong Wang

    2009-07-01

    The growth rate of matter perturbation and the expansion rate of the Universe can be used to distinguish modified gravity and dark energy models in explaining cosmic acceleration. We explore here the inclusion of spatial curvature into the growth factor. We expand previous results using the approximation $\\Omega_{m}^\\gamma$ and then suggest a new form, $f_a=\\Omega_m^\\gamma+(\\gamma-4/7)\\Omega_k$, as an approximation for the growth factor when the curvature $\\Omega_k$ is not negligible, and where the growth index $\\gamma$ is usually model dependent. The expression recovers the standard results for the curved and flat $\\Lambda$CDM and Dvali-Gabadadze-Porrati models. Using the best fit values of $\\Omega_{m0}$ and $\\Omega_{k0}$ to the expansion/distance measurements from Type Ia supernovae, baryon acoustic oscillation, WMAP5, and $H(z)$ data, we fit the growth index parameter to current growth factor data and obtain $\\gamma_{\\Lambda}(\\Omega_{k} \

  8. Growth factor parametrization and modified gravity

    Astrophysics (arXiv)

    Yungui Gong

    2008-12-16

    The growth rate of matter perturbation and the expansion rate of the Universe can be used to distinguish modified gravity and dark energy models in explaining the cosmic acceleration. The growth rate is parametrized by the growth index $\\gamma$. We discuss the dependence of $\\gamma$ on the matter energy density $\\Omega$ and its current value $\\Omega_0$ for a more accurate approximation of the growth factor. The observational data, including the data of the growth rate, are used to fit different models. The data strongly disfavor the Dvali-Gabadadze-Porrati model. For the dark energy model with a constant equation of state, we find that $\\Omega_0=0.27\\pm 0.02$ and $w=-0.97\\pm 0.09$. For the $\\Lambda$CDM model, we find that $\\gamma=0.64^{+0.17}_{-0.15}$. For the Dvali-Gabadadze-Porrati model, we find that $\\gamma=0.55^{+0.14}_{-0.13}$.

  9. Journal of Crystal Growth 266 (2004) 552567 Three-dimensional crystal growth--II: nonlinear simulation

    Mathematics Websites

    Lowengrub, John

    2004-01-01

    Journal of Crystal Growth 266 (2004) 552­567 Three-dimensional crystal growth--II: nonlinear previous analysis (J Crystal Growth 240 (2002) 267) of the linear evolution of non-spherical growing crystals in three dimensions into the nonlinear regime characterized by large shape perturbations. We focus

  10. Nutrients versus growth factors in mTORC1 activation

    MIT - DSpace

    Efeyan, Alejo

    Growth factors and nutrients regulate the mTORC1 [mammalian (or mechanistic) target of rapamycin complex 1] by different mechanisms. The players that link growth factors and mTORC1 activation have been known for several ...

  11. The role of connective tissue growth factor in skeletal growth and development

    Multidisciplinary Databases and Resources Websites

    The role of connective tissue growth factor in skeletal growth and development Reem A. Kanaan1 Gloucestershire Royal Hospital, U.K. Source of support: Self financing Summary Connective tissue growth factor-61, CTGF, NOV family; CTGF ­ connective tissue growth factor; Cyr61/CCN1 ­ cysteine-rich 61; NOV/CCN3

  12. Growth factor in f(T) gravity

    General Relativity & Quantum Cosmology (arXiv)

    Rui Zheng; Qing-Guo Huang

    2011-02-23

    We derive the evolution equation of growth factor for the matter over-dense perturbation in $f(T)$ gravity. For instance, we investigate its behavior in power law model at small redshift and compare it to the prediction of $\\Lambda$CDM and dark energy with the same equation of state in the framework of Einstein general relativity. We find that the perturbation in $f(T)$ gravity grows slower than that in Einstein general relativity if $\\p f/\\p T>0$ due to the effectively weakened gravity.

  13. Glycosaminoglycan-protein interactions : the fibroblast growth factor paradigm

    MIT - DSpace

    Kwan, Chi-Pong, 1973-

    2002-01-01

    Specific interactions between heparan sulfate glycosaminoglycans (HSGAGs) and proteins are central to a wide range of biological processes such as anticoagulation, angiogenesis and growth factor activation. The specificity ...

  14. Argonaute-2 Expression Is Regulated by Epidermal Growth Factor Receptor and Mitogen-Activated

    Biology and Medicine Websites

    Terasaki, Mark

    Argonaute-2 Expression Is Regulated by Epidermal Growth Factor Receptor and Mitogen by inhibition of the epidermal growth factor (EGF) receptor/MAPK signaling pathway, using either, cycloheximide; DPN, diarylpropionitrile; EGF, epi- dermal growth factor; EGFR, epidermal growth factor receptor

  15. Note on Integer Factoring Algorithms II

    Math Preprints (arXiv)

    N. A. Carella

    2007-02-08

    This note introduces a new class of integer factoring algorithms. Two versions of this method will be described, deterministic and probabilistic. These algorithms are practical, and can factor large classes of balanced integers N = pq, p < q < 2p in superpolynomial time. Further, an extension of the Fermat factoring method is proposed.

  16. Tempered Endoscopy for Real Groups II: spectral transfer factors

    Mathematics Websites

    Shelstad, Diana

    Tempered Endoscopy for Real Groups II: spectral transfer factors D. Shelstad Abstract groups in terms of the canonical transfer factors of Langlands and Shelstad. The a priori de...nition of those factors provides an explicit geometric transfer theorem. The present paper introduces a parallel

  17. Epidermal growth factor receptor downregulation by small heterodimeric binding proteins

    MIT - DSpace

    Hackel, Benjamin J.

    No single engineered protein has been shown previously to robustly downregulate epidermal growth factor receptor (EGFR), a validated cancer target. A panel of fibronectin-based domains was engineered to bind with picomolar ...

  18. Experimental estimate of the diffusivity of Vascular Endothelial Growth Factor

    MIT - DSpace

    Núñez, Daniel A

    2006-01-01

    The diffusivity of Vascular Endothelial Growth Factor (VEGF) is a number that is very important in determining the transport of VEGF. The transport of VEGF determines crucial processes such as angiogenesis and vasculogenesis. ...

  19. Characterizing and engineering antibodies against the epidermal growth factor receptor

    MIT - DSpace

    Chao, Ginger

    2008-01-01

    Epidermal growth factor receptor (EGFR) signaling leads to cellular proliferation and migration, and thus EGFR dysregulation can significantly contribute to the survival of tumor cells. Aberrant EGFR signaling due to ...

  20. Tunable dual growth factor delivery from polyelectrolyte multilayer films

    MIT - DSpace

    Shah, Nisarg J.

    A promising strategy to accelerate joint implant integration and reduce recovery time and failure rates is to deliver a combination of certain growth factors to the integration site. There is a need to control the quantity ...

  1. Engineering of the Heparin-Binding Domain of Neurotrophin-6 onto Nerve Growth Factor

    Biology and Medicine Websites

    Ibáñez, Carlos

    Engineering of the Heparin-Binding Domain of Neurotrophin-6 onto Nerve Growth Factor Leopold L factors. In addition to the prototypic member, nerve growth factor (NGF), other members include: brain]. Other growth factors that contain heparin-binding domains include fibroblast growth factor (FGF) [9

  2. Lipopolysaccharide Potentiates the Effect of Hepatocyte Growth Factor upon Replication

    Biology and Medicine Websites

    Ponder, Katherine P.

    Lipopolysaccharide Potentiates the Effect of Hepatocyte Growth Factor upon Replication in Lung in revised form January 10, 2001; published online April 13, 2001 Induction of replication may potentiate) increases the percentage of replicating hepatocytes to 18-fold that in normal rats, and lipopolysaccharide

  3. Introduction Bone Morphogenetic Proteins (BMPs) are growth factors

    Biology and Medicine Websites

    De Robertis, Eddy M.

    To address the patterning function of the Bmp2, Bmp4 and Bmp7 growth factors, we designed antisense the dorsoventral (DV) pattern of the embryo. Many zygotic mutations affecting DV patterning have been isolated insights into the role of BMP signaling in embryonic patterning. This is illustrated by the discovery

  4. An Atomic Resolution Structure for Human Fibroblast Growth Factor 1

    Biology and Medicine Websites

    Blaber, Michael

    An Atomic Resolution Structure for Human Fibroblast Growth Factor 1 Matthew J. Bernett. The backbone atoms of each structurally conserved region of the symmetry-related subdomains in FGF-1 overlay and Biochemistry, Florida State University, Tallahassee, Florida ABSTRACT A 1.10-Å atomic resolution X

  5. Discovering Small Molecule Ligands of Vascular Endothelial Growth Factor

    Materials Science Websites

    Zhu, Xiangdong

    -based assay platform that we used to identify inhibitors of vascular endothelial growth factor (VEGF)­ kinase detects binding of a target protein with SMM and identifies ligands to the protein as inhibitor candidates Institute and found 12 inhibitors to VEGF­KDR (VEGFR2) interactions with IC50 ranging from 0.3 to 60 l

  6. ORIGINAL ARTICLE Altered expression of glutamate signaling, growth factor,

    Biotechnology Websites

    ORIGINAL ARTICLE Altered expression of glutamate signaling, growth factor, and glia genes proposed that brain glutamate signaling abnormalities and glial pathology have a role in the etiology in which forebrain brain regions were examined. The locus coeruleus (LC) is the primary source of extensive

  7. Nonlinear Diffusion of a Growth Inhibitory Factor in Multicell Spheroids

    Mathematics Websites

    Maini, Philip K.

    Nonlinear Diffusion of a Growth Inhibitory Factor in Multicell Spheroids M. A. J. CHAPLAIN School spheroid. The model is based on the assumption that the GIF diffuses within the spheroid in a nonlinear cells in the form of three-dimensional multicell spheroids. It is well known that these spheroids

  8. INTRODUCTION Neurotrophins are a family of soluble growth factors required

    Biology and Medicine Websites

    Ibáñez, Carlos

    INTRODUCTION Neurotrophins are a family of soluble growth factors required for the survival at supporting limb muscle sensory neurons in vitro (Horylee et al., 1993). It is expressed in skeletal muscle the survival of muscle sensory neurons (Oakley et al., 1995). NT3 is also expressed in developing DRG

  9. Endothelial Cell Migration and Vascular Endothelial Growth Factor Expression Are the Result of Loss of Breast Tissue Polarity

    Biology and Medicine Websites

    Kenny, Paraic

    Endothelial Cell Migration and Vascular Endothelial Growth Factor Expression Are the Result of Loss, growth- arrested nonmalignant counterparts. Elevated vascular endo- thelial growth factor (VEGF factors have been identified, the most prominent being vascular endothelial growth factor (VEGF), which

  10. One-parameter automorphism groups of the hyperfinite type II1 factor

    Mathematics Websites

    Kawahigashi, Yasuyuki

    One-parameter automorphism groups of the hyperfinite type II1 factor Yasuyuki Kawahigashi abelian group G on the hyperfinite type II1 factor R, which fixes a Cartan subalgebra of R elementwise periodic prime action of a separable locally compact abelian group on the hyperfinite type II1 factor R

  11. MODEL THEORY OF OPERATOR ALGEBRAS III: ELEMENTARY EQUIVALENCE AND II1 FACTORS

    Mathematics Websites

    Sherman, David

    isomorphisms and embed- dings between II1 factors and their ultrapowers. Among other things, we show: there exists a separable II1 factor such that all II1 factors embed into one of its ultrapowers. 1 induces a partial ordering based on the condition that one object embeds in an ultrapower of another

  12. Regulation of mTOR complex 1 in response to growth factors and nutrients

    MIT - DSpace

    Sancak, Yasemin S. (Yasemin Shechner)

    2010-01-01

    In multicellular organisms, cells ensure the simultaneous availability of growth factors and nutrients before they invest in cellular processes that lead to growth. The TOR kinase is a master regulator of cellular growth ...

  13. The effects of growth factors on testicular germ cell apoptosis in the stallion 

    Texas A&M University - TxSpace

    Donnelly, Casey Leanne

    2002-01-01

    recombinant growth factors, stem cell factor (SCF), leukemia inhibiting factor (LIF), granulocyte macrophage-colony stimulating factor (GM-CSF), and one hormone, estradiol (E?), alone or in combination, to prevent apoptosis of germ cells in short-term equine...

  14. Fibroblast Growth Factor (FGF) 18 Signals through FGF Receptor 3 to Promote Chondrogenesis*S

    Materials Science Websites

    Buschmann, Michael

    the progression of degenerative disorders like osteoarthritis, in which the metabolic activity of articular chon carti- lage repair include fibroblast growth factors (FGFs),1 platelet- derived growth factor, bone

  15. Adenosine deaminase-related growth factors stimulate cell proliferation in Drosophila

    Biology and Medicine Websites

    ?urovec, Michal

    Adenosine deaminase-related growth factors stimulate cell proliferation in Drosophila by depleting, 2001) We describe a protein family in Drosophila containing six adeno- sine deaminase-related growth factors (ADGFs), which are homol- ogous to a mitogenic growth factor discovered in conditioned medium from

  16. Delivering Heparin-Binding Insulin-Like Growth Factor 1 with Self-Assembling Peptide Hydrogels

    MIT - DSpace

    Miller, Rachel E.

    Heparin-binding insulin-like growth factor 1 (HB-IGF-1) is a fusion protein of IGF-1 with the HB domain of heparin-binding epidermal growth factor-like growth factor. A single dose of HB-IGF-1 has been shown to bind ...

  17. Individualbased simulation of the clustering behaviour of epidermal growth factor receptors.

    Computer Technologies and Information Sciences Websites

    Kent, University of

    Individual­based simulation of the clustering behaviour of epidermal growth factor receptors. Jacki on a project to simulate the behaviour of epidermal growth factor receptors. These are struc­ tures which can). A particular example of a system of this type is the epidermal growth factors (EGFs) and their receptors [25

  18. Huntingtin-associated Protein 1 Interacts with Hepatocyte Growth Factor-regulated Tyrosine Kinase Substrate and

    Biology and Medicine Websites

    Li, Lian

    Huntingtin-associated Protein 1 Interacts with Hepatocyte Growth Factor-regulated Tyrosine Kinase's disease protein huntingtin. Here we report that HAP1 interacts with hepatocyte growth factor epidermal growth factor receptors. Whereas overexpression of HAP1 does not affect either constitutive

  19. Enhanced survival and engraftment of transplanted stem cells using growth factor sequestering hydrogels

    Biotechnology Websites

    Enhanced survival and engraftment of transplanted stem cells using growth factor sequestering transplantation Hyaluronic acid hydrogel Growth factor sequestration Neovascularization Heparin TGFb1 a b s t r parameters such as adhesion peptide density, mechanical properties, and growth factor sequestering capacity

  20. Close association of RNA polymerase II and many transcription factors with Pol III genes

    Biology and Medicine Websites

    Close association of RNA polymerase II and many transcription factors with Pol III genes Debasish I, II, and III, whereby each polymerase is thought to independently transcribe a distinct set of genes. To investigate a possible relationship of RNA polymerases II and III, we mapped their in vivo

  1. Misorientation texture development during grain growth. Part II: Theory

    Materials Science Websites

    Rohrer, Gregory S.

    ; accepted 17 August 2009 Available online 7 October 2009 Abstract A critical event model for the evolution in the current work. In what follows we will discuss a new model for MDF evolution during grain growth of boundaries of any type changes only by discrete topological events in the grain boundary network, our model

  2. Neutrino Mass, Dark Energy, and the Linear Growth Factor

    Astrophysics (arXiv)

    Angeliki Kiakotou; Oystein Elgaroy; Ofer Lahav

    2008-03-28

    We study the degeneracies between neutrino mass and dark energy as they manifest themselves in cosmological observations. In contradiction to a popular formula in the literature, the suppression of the matter power spectrum caused by massive neutrinos is not just a function of the ratio of neutrino to total mass densities f_nu=Omega_nu/Omega_m, but also each of the densities independently. We also present a fitting formula for the logarithmic growth factor of perturbations in a flat universe, f(z, k;f_nu,w,Omega_DE)= (1-A(k)*Omega_DE*f_nu+B(k)*f_nu^2-C(k)*f_nu^3)*Omega_m(z)^alpha, where alpha depends on the dark energy equation of state parameter w. We then discuss cosmological probes where the f factor directly appears: peculiar velocities, redshift distortion and the Intergrated Sachs-Wolfe effect. We also modify the approximation of Eisenstein & Hu (1999) for the power spectrum of fluctuations in the presence of massive neutrinos and provide a revised code (http://www.star.ucl.ac.uk/~lahav/nu_matter_power.f)

  3. Combination antibody treatment down-regulates epidermal growth factor receptor by inhibiting endosomal recycling

    MIT - DSpace

    Spangler, Jamie Berta

    Due to its common dysregulation in epithelial-based cancers and extensive characterization of its role in tumor growth, epidermal growth factor receptor (EGFR) is a highly validated target for anticancer therapies. There ...

  4. Characterization and informed design of downregulating anti-epidermal growth factor receptor antibodies

    MIT - DSpace

    Spangler, Jamie Berta

    2011-01-01

    Due to its common dysregulation in epithelial-based cancers and the extensive characterization of its role in tumor growth, epidermal growth factor receptor (EGFR) has long been an attractive target for monoclonal antibodies. ...

  5. The Confluent System Formalism: II. The Growth History of Objects

    Astrophysics (arXiv)

    Alberto Manrique; Eduard Salvador-Sole

    1996-03-09

    With the present paper we conclude the presentation of a semianalytical model of hierarchical clustering of bound virialized objects formed by gravitational instability from a random Gaussian field of density fluctuations. In paper I, we introduced the basic tool, the so-called ``confluent system'' formalism, able to follow the evolution of bound virialized objects in the peak model. This was applied to derive the mass function of objects. In the present paper, we calculate other important quantities characterizing the growth history of objects. This model is compared with a similar one obtained by Lacey \\& Cole (1993) following the Press \\& Schechter (1974) approach. The interest of the new modeling presented here is twofold: 1) it is formally better justified as far as peaks are more reasonable seeds of objects than the indetermined regions in the Press \\& Schechter prescription, and 2) it distinguishes between merger and accretion enabling us to unambiguously define the formation and destruction of objects and to estimate growth rates and characteristic times not available in the previous approach.

  6. Matrix rheology effects on reaction rim growth II: coupled diffusion and creep model

    Geosciences Websites

    Podladchikov, Yuri

    Matrix rheology effects on reaction rim growth II: coupled diffusion and creep model D. W. SCHMID,1 University Berlin, Malteserstrasse 74-100, 12249 Berlin, Germany ABSTRACT Chemical reactions and phase of the matrix that surrounds the reaction sites where the volume change takes place. Consequently, mineral

  7. Growth and Destruction of Disks: Combined H I and H II View

    Physics Websites

    Bershady, Matthew A.

    Growth and Destruction of Disks: Combined H I and H II View Matthew Bershady , Marc Verheijen will yield kinematic and star-formation maps and properties of the stellar populations, resolving the core al. 2005, Springel & Hernquist 2005). To yield old stellar populations in dynamically- cold, star

  8. AO:08 Two Independent Studies of Atmospheric Aerosols. I: Hygroscopic Growth & II: Aircraft Emissions

    Physics Websites

    Oxford, University of

    AO:08 Two Independent Studies of Atmospheric Aerosols. I: Hygroscopic Growth & II: Aircraft mat- ter from aircraft. Subsequently, the direction of the project was altered to facilitate of the report details the study of aircraft par- ticulate emissions from a BAE-146 on 17/02/2009 at Cranfield

  9. Nucleation and growth in one dimension. II. Application to DNA replication kinetics

    Physics Websites

    Jun, Suckjoon

    of data, allowing the extraction of detailed statistical quantities. Since the DNA work provides a modelNucleation and growth in one dimension. II. Application to DNA replication kinetics Suckjoon JunS6 Received 30 July 2004; published 21 January 2005 Inspired by recent experiments on DNA

  10. The Effects of Recombinant Human Insulin-like Growth Factor-I/Insulin-like Growth Factor Binding

    Computer Technologies and Information Sciences Websites

    -I) is thought to mediate many of the anabolic actions of growth hormone (GH) and there are anecdotal reports composition. Growth hormone is misused by athletes for its anabolic and lipolytic properties despite there was no clear evidence that growth hormone (GH) improves athletic performance (2), but recent studies have

  11. RNA polymerase II pauses and associates with pre-mRNA processing factors at both ends of genes

    Biology and Medicine Websites

    polymerase II (pol II) at the 5¢ ends of quiescent genes. They also track throughout actively transcribed-hyperphosphorylated, paused pol II. 3¢ end processing factors also localize at transcription start sites-transcriptional processing by factors recruited to the pol II ternary complex. An intricate web of interactions between

  12. Edinburgh Research Explorer Transforming growth factor-induced Warburg-like metabolic

    Biology and Medicine Websites

    Millar, Andrew J.

    Edinburgh Research Explorer Transforming growth factor- induced Warburg-like metabolic, Brown, JK, Maybin, J, Saunders, PTK, Duncan, WC & Horne, AW 2014, 'Transforming growth factor- induced of Clinical Endocrinology & Metabolism, vol 99, no. 9, pp. 3450-3459., 10.1210/jc.2014-1026 Digital Object

  13. Immobilization of Growth Factors on Collagen Scaffolds Mediated by Polyanionic Collagen Mimetic Peptides and Its

    Biology and Medicine Websites

    Chen, Christopher S.

    Immobilization of Growth Factors on Collagen Scaffolds Mediated by Polyanionic Collagen Mimetic to the survival and ultimate functional capacity of engineered tissue constructs. Here we present a new collagen-terminus designed to attract growth factors by charge-charge interactions and bind to collagen by CMP-collagen

  14. Modelling and Asymptotic Stability of a Growth Factor-Dependent Stem Cells

    Mathematics Websites

    Crauste, Fabien

    Modelling and Asymptotic Stability of a Growth Factor-Dependent Stem Cells Dynamics Model) Abstract Under the action of growth factors, proliferating and nonproliferating hematopoietic stem cells population. We propose a mathe- matical model describing the evolution of a hematopoietic stem cell

  15. Shear stress magnitude and directionality modulate growth factor gene expression in

    Biotechnology Websites

    Passerini, Tony

    Shear stress magnitude and directionality modulate growth factor gene expression in preconditioned levels of 12 endothelial growth factor genes in response to alterations in wall shear stress (WSS) under by ECs in response to luminal wall shear stress (WSS)9-15 may contribute to the pathology of intimal

  16. Interactions between Type III receptor tyrosine phosphatases and growth factor receptor tyrosine

    Biology and Medicine Websites

    Zinn, Kai

    or expression of the epidermal growth factor receptor (Egfr) tyrosine kinase (TK). Ptp10D physically interacts, Epistasis, Tumor suppressor, Tubulogenesis Introduction Receptor tyrosine kinase (RTK) signaling controlsInteractions between Type III receptor tyrosine phosphatases and growth factor receptor tyrosine

  17. Mode of receptor binding and activation by plasminogen-related growth factors

    Biology and Medicine Websites

    human carcinomas and sarcomas. Uncontrolled activation of Met is associated with tumor invasion/SF) and macrophage stimulating protein (MSP) are plasminogen- related kringle proteins that lost serine protease words: Hepatocyte growth factor; Macrophage stimulating protein; Plasminogen-related growth factor

  18. Chem 390 Physical Chemistry II Spring 2007 Boltzmann factors and partition functions revisited

    Chemistry Websites

    Chem 390 Physical Chemistry II Spring 2007 Boltzmann factors and partition functions revisited(N, V, ) = e-Ej (N,V ) Q(N, V, ) (7b) 1 of 4 #12;Chem 390 Physical Chemistry II Spring 2007 where it is important to note that we can use either the temperature T or = 1/kBT as an independent variable

  19. Fish growth and degree-days II: selecting a base temperature for an among-population study

    Environmental Sciences and Ecology Websites

    Venturelli, Paul

    ARTICLE Fish growth and degree-days II: selecting a base temperature for an among-population study in temperature-corrected growth rates among populations. These differences increase with the error that differences in temperature-corrected growth rates among populations can be a statistical artifact rather than

  20. Modelling hematopoiesis mediated by growth factors: Delay equations describing periodic

    Mathematics Websites

    Crauste, Fabien

    and reg- ulation of blood cells. It is based upon differentiation of stem cells under the action of growth-dependent coefficients, stability switch, Hopf bifurcation, cell population models, hematopoiesis, stem cells. 1 be observed in blood vessels, are originated from a pool of hematopoi- etic pluripotent stem cells, located

  1. Appendix II. Calculation of Slope Factors for Naturally Occurring Radionuclides

    Environmental Sciences and Ecology Websites

    Tables (http://www.epa.gov/radiation/heast/index.html), lists slope factors for individual radionuclides radioactive decay seriesnatural uranium, Ra-226, and Th-232used in the present report include-life of 5.75 y, and Th-228, with a half-life of 1.91 y. Since the naturally-occurring thorium at the uranium

  2. Some properties of factorized Lie algebras II 24 August 2012

    Mathematics Websites

    Yoshii, Yoji

    triangular n × n matrices (aij) with aii = 0 for any even integer i, lte(n, k) = the subalgebra of gl(n, k = n2 lte(n, k). L = A + B , A B = 0 (1) S factorized in L = A + B S (A S) + (B S) A, B L key ([10

  3. Integers, without large prime factors, in arithmetic progressions, II

    Computer Technologies and Information Sciences Websites

    Bernstein, Daniel

    of their distribution. Let \\Psi(x; y) be the number of integers Ÿ x that are free of prime factors ? y, \\Psi q (x; y) be the number of such integers that are also coprime to q, and \\Psi(x; y; a; q) be the number of such integers in the congruence class a (modq). Our goal is to prove that the asymptotic formula (1:1) \\Psi(x; y; a; q) ¸ \\Psi q

  4. VEGF121 and VEGF165 Regulate Blood Vessel Diameter Through Vascular Endothelial Growth Factor Receptor

    Biology and Medicine Websites

    Hughes, Christopher C. W.

    provide critical factors that promote sprouting, lumen formation, and vessel stability. Using this assay by processes similar to those seen in adult angiogenesis (Conway et al, 2001). Pruning, sprouting, and growth

  5. The effects of insulin-like growth factor-1 in prepubertal ovarian estradiol secretion 

    Texas A&M University - TxSpace

    Blevins, William Christopher

    2000-01-01

    Previously, it has been shown that insulin-like growth factor-1 (IGF-1) of peripheral origin acts centrally to stimulate the secretion of luteinizing hormone releasing hormone (LHRH) during the onset of puberty. This release of LHRH acts upon...

  6. Effects of cellular and tissue pharmacokinetics on control released growth factors

    MIT - DSpace

    Wu, David, 1973-

    2001-01-01

    Aim: To examine the effects of cellular and tissue pharmacokinetics on control released growth factors. Motivation: The resurgence of interest in controlled drug delivery reflects the increasing appreciation of the importance ...

  7. Local pharmacokinetics and pharmacodynamics of angiogenic growth factors in myocardial tissue

    MIT - DSpace

    Le, Kha N., 1973-

    2009-01-01

    Early enthusiasm over angiogenic therapy, a method to induce vascular regeneration to treat ischemic tissue with growth factors, has been tempered by a series of unsuccessful clinical trials with limited late efficacy and ...

  8. Microenvironmental Stiffness Enhances Glioma Cell Proliferation by Stimulating Epidermal Growth Factor Receptor Signaling

    MIT - DSpace

    Umesh, Vaibhavi

    The aggressive and rapidly lethal brain tumor glioblastoma (GBM) is associated with profound tissue stiffening and genomic lesions in key members of the epidermal growth factor receptor (EGFR) pathway. Previous studies ...

  9. Experimental and computational analysis of epidermal growth factor receptor pathway phosphorylation dynamics

    MIT - DSpace

    Kleiman, Laura B

    2010-01-01

    The epidermal growth factor receptor (EGFR, also known as ErbB 1) is a prototypical receptor tyrosine kinase (RTK) that activates multi-kinase phosphorylation cascades to regulate diverse cellular processes, including ...

  10. Cholesterol Depletion Results in Site-specific Increases in Epidermal Growth Factor Receptor Phosphorylation due to

    Biology and Medicine Websites

    Pike, Linda J.

    Cholesterol Depletion Results in Site-specific Increases in Epidermal Growth Factor Receptor Phosphorylation due to Membrane Level Effects STUDIES WITH CHOLESTEROL ENANTIOMERS* Received for publication Institute, University of Minnesota, Austin, Minnesota 55912 In A431 cells, depletion of cholesterol

  11. Regulation of the mTOR Complex 1 Pathway by Nutrients, Growth Factors, and Stress

    MIT - DSpace

    Sengupta, Shomit

    The large serine/threonine protein kinase mTOR regulates cellular and organismal homeostasis by coordinating anabolic and catabolic processes with nutrient, energy, and oxygen availability and growth factor signaling. Cells ...

  12. Role of fibroblast growth factor signalling on the regulation of embryonic stem cells 

    Edinburgh, University of - Research Archive

    Freile Vinuela, Paz

    2008-01-01

    Fibroblast growth factor (FGF) signalling plays many fundamentally important roles during the development of the mammalian embryo. However, its effects on pluripotent stem cells derived from mouse and human embryos appear ...

  13. Novel recombinant protein constructs for improved insulin-like growth factor-1 delivery

    MIT - DSpace

    Was, Adam (Adam S.)

    2006-01-01

    Four novel recombinant protein constructs were designed to improve the delivery of insulin-like growth factor-1 (IGF-1). The IGF-1 sequence was subcloned into a HisMax plasmid and expressed at low levels by transient ...

  14. Tissue Microarray Validation of Epidermal Growth Factor Receptor and SALL2 in Synovial Sarcoma

    Biology and Medicine Websites

    Botstein, David

    Tissue Microarray Validation of Epidermal Growth Factor Receptor and SALL2 in Synovial Sarcoma,§ Stanford University School of Medicine, Stanford, California Histological diagnosis of synovial sarcoma can levels in synovial sarcoma than in other soft tissue tumors, representing excellent candidates

  15. Growth/differentiation factor 3 signals through ALK7 and regulates accumulation of adipose tissue and

    Biology and Medicine Websites

    Ibáñez, Carlos

    as an important regulator of metabolic homeostasis through the synthesis and release of peptide hormonesGrowth/differentiation factor 3 signals through ALK7 and regulates accumulation of adipose tissue Center, Durham, NC, and approved March 18, 2008 (received for review January 14, 2008) Growth

  16. Charge Form Factors of Quark-Model Pions II

    Nuclear Theory (arXiv)

    F. Coester; W. N. Polyzou

    2004-09-20

    Experimental data of the pion charge form factor are well represented by Poincar\\'e invariant constituent-quark phenomenology depending on two parameters, a confinement scale and an effective constituent--quark mass. Pion states are represented by eigenfunctions of mass and spin operators and of the light-front momenta. An effective current density is generated by the dynamics from a null-plane impulse current density. A simple shape of the wave function depending only on the confinement scale is sufficient.

  17. 902 Biochemical Society Transactions (2013) Volume 41, part 4 Nutrients and growth factors in mTORC1 activation

    Biology and Medicine Websites

    Sabatini, David M.

    2013-01-01

    902 Biochemical Society Transactions (2013) Volume 41, part 4 Nutrients and growth factors in m.S.A. Abstract Growth factors and nutrients regulate the mTORC1 [mammalian (or mechanistic) target of rapamycin complex 1] by different mechanisms. The players that link growth factors and mTORC1 activation have been

  18. Mon. Not. R. Astron. Soc. 322, 419425 (2001) Formulae for growth factors in expanding universes containing matter

    Physics Websites

    Weijgaert, Rien van de

    2001-01-01

    Mon. Not. R. Astron. Soc. 322, 419±425 (2001) Formulae for growth factors in expanding universes for the linear growth factor D/a and its logarithmic derivative d ln D=d ln a in expanding Friedmann: theory ± large-scale structure of Universe. 1 I NTRO DUC TION The linear growth factor g ; D=a; where D

  19. Bioprinting of growth factors onto aligned sub-micron fibrous scaffolds for simultaneous control of cell differentiation and alignment

    Computer Technologies and Information Sciences Websites

    Weiss, Lee E.

    2011 Available online 5 August 2011 Keywords: Bone Muscle Tendon Growth factors a b s t r a cBioprinting of growth factors onto aligned sub-micron fibrous scaffolds for simultaneous control such as ECM-bound growth factors (GFs) is important for understanding the organi- zation and function

  20. Dust origin in late-type dwarf galaxies: ISM growth vs. type II supernovae

    CERN Preprints

    Zhukovska, Svitlana

    2014-01-01

    We re-evaluate the roles of different dust sources in dust production as a function of metallicity in late-type dwarf galaxies, with the goal of understanding the relation between dust content and metallicity. The dust content ol late-type dwarf galaxies with episodic star formation is studied with a multicomponent model of dust evolution, which includes dust input from AGB stars, type II SNe and dust growth by accretion of atoms in the ISM. Dust growth in the ISM becomes an important dust source in dwarf galaxies, on the timescale of 0.1 - a few Gyrs. It increases the dust-to-gas ratio (DGR) during post-burst evolution, unlike type II SNe, which eject grains to the ISM only during starbursts. Before the dust growth in the ISM overtakes the dust production, AGB stars can be major sources of dust in metal-poor dwarf galaxies. Our models reproduce the relation between the DGR and oxygen abundance, derived from observations of a large sample of dwarf galaxies. The steep decrease in the DGR at low O values is exp...

  1. Radiative Impacts on the Growth of Drops within Simulated Marine Stratocumulus. Part II: Solar Zenith Angle Variations

    Geosciences Websites

    Harrington, Jerry Y.

    Radiative Impacts on the Growth of Drops within Simulated Marine Stratocumulus. Part II: Solar 19 November 2004) ABSTRACT The effects of solar heating at a variety of solar zenith angles ( o on drop growth. Smaller o, such as when the sun is overhead, provide strong solar heating, which tends

  2. The growth factor of matter perturbations in an f(R) gravity

    General Relativity & Quantum Cosmology (arXiv)

    Xiangyun Fu; Puxun Wu; Hongwei Yu

    2010-12-10

    The growth of matter perturbations in the $f(R)$ model proposed by Starobinsky is studied in this paper. Three different parametric forms of the growth index are considered respectively and constraints on the model are obtained at both the $1\\sigma$ and $2\\sigma$ confidence levels, by using the current observational data for the growth factor. It is found, for all the three parametric forms of the growth index examined, that the Starobinsky model is consistent with the observations only at the $2\\sigma$ confidence level.

  3. Factors Inhibiting Personal Growth When Teaching Academically Diverse Classes

    University of Kansas - KU ScholarWorks

    Lenz, B. Keith; Melvin, Jeff; Kissam, Brenda; Bulgren, Janis; Roth, Janet

    1992-08-01

    .g., lack of collegial interaction and performance feedback); (f) increased academic and emotional needs of students; and (g) poor public image of teachers. Summarizing factors related to recognition, Mac-Phaii-Wilcox and Hyler {1985) suggested... activities. Further, (a) salaries are based on lock-step schedules basically unrelated to performance, (b) decision participation beyond the classroom is constricted, (c) collegial interaction is limited, (d) recognition is infrequent, and (e) increased...

  4. Detecting Transforming Growth Factor Release from Liver Cells Using an Aptasensor Integrated with Microfluidics

    Biotechnology Websites

    Revzin, Alexander

    Detecting Transforming Growth Factor Release from Liver Cells Using an Aptasensor Integrated Supporting Information ABSTRACT: We developed a cell-culture/biosensor platform consisting of aptamer factor-beta 1 (TGF-1), an important inflammatory and pro-fibrotic cytokine. Aptamers were thiolated

  5. TAYLOR MAP ON GROUPS ASSOCIATED WITH A II1-FACTOR MARIA GORDINA

    Mathematics Websites

    Gordina, Maria

    TAYLOR MAP ON GROUPS ASSOCIATED WITH A II1-FACTOR MARIA GORDINA Abstract. A notion of the heat- tion. Then the Taylor map is studied for a space of holomorphic functions square integrable with respect to the heat kernel measure. We also define a skeleton map from this space to a Hilbert space

  6. TAYLOR MAP ON GROUPS ASSOCIATED WITH A II 1 -FACTOR MARIA GORDINA

    Mathematics Websites

    Gordina, Maria

    TAYLOR MAP ON GROUPS ASSOCIATED WITH A II 1 -FACTOR MARIA GORDINA Abstract. A notion of the heat- tion. Then the Taylor map is studied for a space of holomorphic functions square integrable with respect to the heat kernel measure. We also de#12;ne a skeleton map from this space to a Hilbert space

  7. INFLUENCE OF VOCALIC CONTEXT ON PERCEPTION OF THE [J [s] DISTINCTION: II. SPECTRAL FACTORS

    Multidisciplinary Databases and Resources Websites

    INFLUENCE OF VOCALIC CONTEXT ON PERCEPTION OF THE [J [s] DISTINCTION: II. SPECTRAL FACTORS Bruno H & Fujisaki, Note 1). Presumably, this reflects a perceptual adjustment for the coarticulatory effect following the noise), the studies to be reported here focused on spectral properties of the stimuli

  8. Baroclinic Vorticity Production in Protoplanetary Disks; Part II: Vortex Growth and Longevity

    CERN Preprints

    Petersen, M R; Julien, K; Petersen, Mark R.; Stewart, Glen R.; Julien, Keith

    2006-01-01

    The factors affecting vortex growth in convectively stable protoplanetary disks are explored using numerical simulations of a two-dimensional anelastic-gas model which includes baroclinic vorticity production and radiative cooling. The baroclinic feedback, where anomalous temperature gradients produce vorticity through the baroclinic term and vortices then reinforce these temperature gradients, is found to be an important process in the rate of growth of vortices in the disk. Factors which strengthen the baroclinic feedback include fast radiative cooling, high thermal diffusion, and large radial temperature gradients in the background temperature. When the baroclinic feedback is sufficiently strong, anticyclonic vortices form from initial random perturbations and maintain their strength for the duration of the simulation, for over 600 orbital periods. Based on both simulations and a simple vortex model, we find that the local angular momentum transport due to a single vortex may be inward or outward, dependin...

  9. Insulin-like Growth Factor 2 Is Required for Progression to Advanced Medulloblastoma in patched1 Heterozygous Mice

    Biotechnology Websites

    Scott, Matthew

    Insulin-like Growth Factor 2 Is Required for Progression to Advanced Medulloblastoma in patched1. It was previously shown that the loss of function of insulin-like growth factor 2 (igf2) suppresses MB formation cells (GNP) and a MB cell line, PZp53MED . Blocking igf2 signaling inhibited growth of PZp53MED cells

  10. Properties of the exact analytic solution of the growth factor and its applications

    HEP - Phenomenology (arXiv)

    Seokcheon Lee; Kin-Wang Ng

    2010-08-25

    There have been the approximate analytic solution \\cite{Silveria} and several approximate analytic forms \\cite{0508156,Carroll,0303112} of the growth factor $D_{g}$ for the general dark energy models with the constant values of its equation of state $\\omde$ after Heath found the exact integral form of the solution of $D_{g}$ for the Universe including the cosmological constant or the curvature term. Recently, we obtained the exact analytic solutions of the growth factor for both $\\omde = -1$ or $-\\fr{1}{3}$ \\cite{SK1} and the general dark energy models with the constant equation of state $\\omde$ \\cite{SK3} independently. We compare the exact analytic solution of $D_{g}$ with the other well known approximate solutions. We also prove that the analytic solutions for $\\omde = -1$ or $-\\fr{1}{3}$ in Ref. \\cite{SK1} are the specific solutions of the exact solutions of the growth factor for general $\\omde$ models in Ref. \\cite{SK3} even though they look quite different. We scrutinize the issue of using the well known parameterizations of the growth index and its parameter given in Ref. \\cite{WS} to obtain the growth factor for general dark energy models. We also investigate the possible extensions of the exact solution of $D_{g}$ to the time-varying $\\omde$ for the comparison with observations.

  11. Growth of a Vortex Mode during Gravitational Collapse Resulting in Type II Supernova

    Astrophysics (arXiv)

    Tomoyuki Hanawa; Tomoaki Matsumoto

    2000-01-26

    We investigate stability of a gravitationally collapsing iron core against non-spherical perturbation. The gravitationally collapsing iron core is approximated by a similarity solution for dynamically collapsing polytropic gas sphere. We find that the similarity solution is unstable against non-spherical perturbations. The perturbation grows in proportion to $ (t - t_0) ^{-\\sigma} $ while the the central density increases in proportion to $ (t - t_0) ^{-2} $. The growth rate is $ \\sigma = 1/3 + \\ell (\\gamma - 4/3) $, where $ \\gamma $ and $ \\ell $ denote the polytropic index and the parameter $ \\ell $ of the spherical harmonics, $ Y_{\\ell} ^m (\\theta, \\phi) $, respectively. The growing perturbation is dominated by vortex motion. Thus it excites global convection during the collapse and may contribute to material mixing in a type II supernova.

  12. Hrs Interacts with Sorting Nexin 1 and Regulates Degradation of Epidermal Growth Factor Receptor*

    Biology and Medicine Websites

    Li, Lian

    of yeast vac- uolar protein sorting (Vps) protein Vps27p; however, the role of Hrs in lysosomal trafficking homologue of yeast Vps5p that recognizes the lysosomal targeting code of epidermal growth factor receptor (EGFR) and partici- pates in lysosomal trafficking of the receptor. Biochem- ical analyses demonstrate

  13. Growth Factor and Bcl-2 Mediated Survival During Abortive Proliferation of

    Biology and Medicine Websites

    Sinskey, Anthony J.

    Growth Factor and Bcl-2 Mediated Survival During Abortive Proliferation of Hybridoma Cell Line John- pressed human bcl-2 (hbcl-2) to mitigate cell death. Abortive proliferation, or continuous proliferation for proliferation was found to be solely determined by the presence of cell culture nutrients. Abortive

  14. Formulae for Growth Factors In Expanding Universes Containing Matter and a Cosmological Constant

    Astrophysics (arXiv)

    A. J. S. Hamilton

    2001-01-25

    Formulae are presented for the linear growth factor D/a and its logarithmic derivative dlnD/dlna in expanding Friedmann-Robertson-Walker Universes with arbitrary matter and vacuum densities. The formulae permit rapid and stable numerical evaluation. A fortran program is available at http://casa.colorado.edu/~ajsh/growl/ .

  15. The Response of Dorsal Root Ganglion Axons to Nerve Growth Factor Gradients Depends on Spinal Level

    Biology and Medicine Websites

    Goodhill, Geoffrey J.

    Irina Vetter,1, * Zac Pujic,1, * and Geoffrey J. Goodhill1,2 Abstract Directed sensory axon regeneration implications for the study of peripheral nerve regeneration in response to exogenous neurotrophins in the treatment of nerve injury. Key words: axon guidance; dorsal root ganglion; nerve growth factor; regeneration

  16. The Turkey Transcription Factor Pit-1/GHF-1 Can Activate the Turkey Prolactin and Growth Hormone

    Biology and Medicine Websites

    Ramachandran, Ramesh

    The Turkey Transcription Factor Pit-1/GHF-1 Can Activate the Turkey Prolactin and Growth Hormone by cotransfection assays and immunofluorescence staining of pituitary sec- tions. In cotransfection assays, turkey Pit-1 activated the turkey Prl, turkey GH, and rat Prl promoters 3.8-, 3.7-, and 12.5-fold

  17. INFUSION OF NERVE GROWTH FACTOR (NGF) INTO KITTEN VISUAL CORTEX INCREASES IMMUNOREACTIVITY FOR NGF, NGF

    Biology and Medicine Websites

    Issa, Naoum

    INFUSION OF NERVE GROWTH FACTOR (NGF) INTO KITTEN VISUAL CORTEX INCREASES IMMUNOREACTIVITY FOR NGF of the critical period, we infused recombinant human NGF into the primary visual cortex of kittens using of immunohistochemically detectable NGF infusion, as measured using intrinsic signal optical imaging and single

  18. Migration Characteristics of Prostate Cancer Cells in Response to Epidermal Growth Factor (EGF)

    Engineering Websites

    Chiao, Jung-Chih

    Migration Characteristics of Prostate Cancer Cells in Response to Epidermal Growth Factor (EGF) S. The main cause of mortality is metastasis of cancer cells from primary sites to secondary sites Receptor (EGF-R). In this study, we have demonstrated the differences in response of prostate cancer cells

  19. Targeting the Dimerization of Epidermal Growth Factor Receptors with Small-Molecule Inhibitors

    Biology and Medicine Websites

    Marshall, Garland R.

    @biochem.wustl.edu The epidermal growth factor (EGF) receptor is a receptor tyrosine kinase involved in the control of cell screening, was shown experimentally to inhibit EGF receptor kinase activation in a dose- dependent manner-genera- tion lead compound represents the first drug-like, small-molecule inhibitor of EGF receptor activation

  20. Spackling the Crack: Stabilizing Human Fibroblast Growth Factor-1 by Targeting the N and

    Biology and Medicine Websites

    Blaber, Michael

    Spackling the Crack: Stabilizing Human Fibroblast Growth Factor-1 by Targeting the N and C terminus data to be important in folding and stability. Specific mutations within the adjacent N and C terminus -strands of FGF-1 are shown to provide a substantial increase in stability. This increase is largely

  1. Prediction of Inhibitory Activity of Epidermal Growth Factor Receptor Inhibitors Using Grid Search-Projection

    Computer Technologies and Information Sciences Websites

    Zhang, Yang

    Prediction of Inhibitory Activity of Epidermal Growth Factor Receptor Inhibitors Using Grid Search kinase (PTK) is an important protein target for anti-tumor drug discovery. To identify potential EGFR inhibitors, we conducted a quantitative structure­activity relationship (QSAR) study on the inhibitory

  2. Functional and Structural Stability of the Epidermal Growth Factor Receptor in Detergent Micelles and Phospholipid Nanodiscs

    Biology and Medicine Websites

    Springer, Timothy A.

    B) family of receptor tyrosine kinases plays an important role in regulating normal and oncogenic cellular physiology. While structures of isolated EGFR extracellular domains and intracellular protein tyrosine kinase domains have suggested mechanisms for growth factor-mediated receptor dimerization and allosteric kinase

  3. FACTORS CONTROLLING GROWTH AND SURVIVAL OF CULTURED SPOT PRAWN, PANDALUS PLATYCEROS,

    Environmental Sciences and Ecology Websites

    FACTORS CONTROLLING GROWTH AND SURVIVAL OF CULTURED SPOT PRAWN, PANDALUS PLATYCEROS, IN PUGET SOUND ofjuvenile and yearling spot prawns, Pandalus platyceros, were studied at two sites in Puget Sound-free water. Although the cooler central Puget Sound site was judged suitable for prawn culture, fluctuations

  4. Cytokine & Growth Factor Reviews 12 (2001) 245257 Molecular piracy of Kaposi's sarcoma associated herpesvirus

    Biology and Medicine Websites

    Damania, Blossom

    2001-01-01

    Cytokine & Growth Factor Reviews 12 (2001) 245­257 Survey Molecular piracy of Kaposi's sarcoma6ard medical school, 1 Pine Hill Dri6e, Southborough, MA 01772, USA Abstract Kaposi's Sarcoma with the pathogenesis of Kaposi's sarcoma, primary effusion lymphoma, and Multicentric Casttleman's disease. KSHV

  5. Fisheries Research 67 (2004) 215225 Factors related to growth and survival of larval walleyes

    Environmental Sciences and Ecology Websites

    Bernot, Randall

    2004-01-01

    : implications for recruitment in a southern Great Plains reservoir M.C. Quista,, C.S. Guya,1, R.J. Bernota, J sampled from Glen Elder Reservoir, Kansas, during 1999­2001 to determine factors associated with growth% of the larval walleyes were sampled in the upper reservoir during all years. Cyprinidae and Centrarchidae were

  6. Disulfide Bond Plasticity in Epidermal Growth Factor Benedetta A. Sampoli Benitez and Elizabeth A. Komives*

    Biology and Medicine Websites

    Komives, Elizabeth A.

    and at least one EGF-like domain show that disulfide bond isomers have significant bioactivity and suggests isomers, the final calculated structures were highly similar to EGF with all-atom RMSD's in the 1.5­2 Å solution structure; cysteine disul- fide isomer INTRODUCTION The structure of epidermal growth factor (EGF

  7. Cultivating liver cells on printed arrays of hepatocyte growth factor Caroline N. Jones a

    Mathematics Websites

    Revzin, Alexander

    Cultivating liver cells on printed arrays of hepatocyte growth factor Caroline N. Jones a , Nazgul, University of California, Sacramento, CA 95817, USA c Department of Medicine, Transplant Research Institute), a protein important in liver development and regeneration, on microarrays of extracellular matrix (ECM

  8. Role of vascular endothelial growth factor (VEGF) in granulosa cell function: involvement of heterotrimeric G-protein signalling pathways. 

    Edinburgh, University of - Research Archive

    Doyle, Lynsey Kerr

    2009-01-01

    Vascular Endothelial Growth Factor (VEGF) has been shown to be an absolute requirement for ovarian follicle development. Although VEGF is commonly regarded primarily as an angiogenic factor, granulosa cells are a major ...

  9. Editorial: Cell and molecular signaling, and transport pathways involved in growth factor control of synaptic development and function

    MIT - DSpace

    Yoshii, Akira

    Since the discovery of nerve growth factor (NGF) more than a half century ago (Levi-Montalcini and Cohen, 1960), the prototypic neurotrophin family has included brain derived neurotrophic factor (BDNF), neurotrophin-3 ...

  10. Baroclinic Vorticity Production in Protoplanetary Disks; Part II: Vortex Growth and Longevity

    Astrophysics (arXiv)

    Mark R. Petersen; Glen R. Stewart; Keith Julien

    2006-12-05

    The factors affecting vortex growth in convectively stable protoplanetary disks are explored using numerical simulations of a two-dimensional anelastic-gas model which includes baroclinic vorticity production and radiative cooling. The baroclinic feedback, where anomalous temperature gradients produce vorticity through the baroclinic term and vortices then reinforce these temperature gradients, is found to be an important process in the rate of growth of vortices in the disk. Factors which strengthen the baroclinic feedback include fast radiative cooling, high thermal diffusion, and large radial temperature gradients in the background temperature. When the baroclinic feedback is sufficiently strong, anticyclonic vortices form from initial random perturbations and maintain their strength for the duration of the simulation, for over 600 orbital periods. Based on both simulations and a simple vortex model, we find that the local angular momentum transport due to a single vortex may be inward or outward, depending its orientation. The global angular momentum transport is highly variable in time, and is sometimes negative and sometimes positive. This result is for an anelastic gas model, and does not include shocks that could affect angular momentum transport in a compressible-gas disk.

  11. Mixed-mode, high-cycle fatigue-crack growth thresholds in II. Quantication of crack-tip shielding

    Materials Science Websites

    Ritchie, Robert

    Mixed-mode, high-cycle fatigue-crack growth thresholds in Ti±6Al±4V II. Quanti®cation of crack alloy is examined under high-cycle fatigue loading conditions, i.e., at a loading frequency of 1000 Hz Science Ltd. All rights reserved. Keywords: High-cycle fatigue; Fatigue thresholds; Mixed mode; Crack

  12. Factorization of numbers with Gauss sums: II. Suggestions for implementations with chirped laser pulses

    Quantum Physics (arXiv)

    W. Merkel; S. Wölk; W. P. Schleich; I. Sh. Averbukh; B. Girard; G. G. Paulus

    2012-10-24

    We propose three implementations of the Gauss sum factorization schemes discussed in part I of this series: (i) a two-photon transition in a multi-level ladder system induced by a chirped laser pulse, (ii) a chirped one-photon transition in a two-level atom with a periodically modulated excited state, and (iii) a linearly chirped one-photon transition driven by a sequence of ultrashort pulses. For each of these quantum systems we show that the excitation probability amplitude is given by an appropriate Gauss sum. We provide rules how to encode the number N to be factored in our system and how to identify the factors of N in the fluorescence signal of the excited state.

  13. Revision to "1-x-3 Tandem Differential Mobility Analyzer for Measurement of the Irreversibility of the Hygroscopic Growth Factor"

    Chemistry Websites

    of the Hygroscopic Growth Factor" [Page 649, Paragraph #3] In addition to the down boxcars at the expected RH values-:CPC0 would depend not on a phase transition but instead on a difference in growth factors at (RH0 are attributable to instrumental gradients of 1 to 2% RH. For example, an efflorescence test is susceptible near

  14. Insulin-like growth factor-1 receptor signaling in 3T3-L1 adipocyte differentiation requires lipid rafts but

    Biology and Medicine Websites

    Tian, Weidong

    Insulin-like growth factor-1 receptor signaling in 3T3-L1 adipocyte differentiation requires lipid for insulin-like growth factor-1 (IGF-1) receptor signaling during 3T3-L1 preadipocytes differentiation induc the receptor signal. Using small double-stranded RNA-mediated interfer- ence (RNAi), we successfully suppressed

  15. High-Resolution Solution Structure of Basic Fibroblast Growth Factor Determined by Multidimensional Heteronuclear Magnetic Resonance Spectroscopy

    Chemistry Websites

    Powers, Robert

    High-Resolution Solution Structure of Basic Fibroblast Growth Factor Determined by Multidimensional Powers*,§ Departments of Structural Biology and Protein Chemistry, Wyeth-Ayerst Research, Pearl Ri-resolution solution structure of recombinant human basic fibroblast growth factor (FGF-2), a protein of 17.2 k

  16. Theoretical Population Biology 71 (2007) 8094 The effect of size-dependent growth and environmental factors on

    Environmental Sciences and Ecology Websites

    2007-01-01

    equal to the relative change in mean per unit size growth rate, when only size-dependent factors affectTheoretical Population Biology 71 (2007) 80­94 The effect of size-dependent growth and environmental factors on animal size variability Scott D. Peacora,b,Ã, James R. Bencea , Catherine A. Pfisterc

  17. Regulation of Transforming Growth Factor-B1Induced Apoptosis and Epithelial-to-Mesenchymal Transition by Protein Kinase A

    Biology and Medicine Websites

    Tian, Weidong

    Regulation of Transforming Growth Factor-B1­Induced Apoptosis and Epithelial occurring apoptosis and EMT induced by transforming growth factor-B (TGF-B) has not been well studied. Epithelial tight junctions form a functional and morphologic boundary on the cell surface and participate

  18. Structural Origins of the Functional Divergence of Human Insulin-Like Growth Factor-I and Insulin,

    Biology and Medicine Websites

    of the structural integrity of hIGF-I in relation to its biological function. Human insulin-like growth factor I (hStructural Origins of the Functional Divergence of Human Insulin-Like Growth Factor-I and Insulin. Turkenburg, Frederik M. de Bree,# and Zbigniew Dauter§ Structural Biology Laboratory, Chemistry Department

  19. A PROBLEM ON THE II1-FACTORS OF FUCHSIAN GROUPS Pierre de la Harpe and Dan Voiculescu

    Mathematics Websites

    Genève, Université de

    A PROBLEM ON THE II1-FACTORS OF FUCHSIAN GROUPS Pierre de la Harpe and Dan Voiculescu Abstract. We algebras, Fuchsian groups, free groups.. #12;2 PIERRE DE LA HARPE AND DAN VOICULESCU There are precisely q

  20. Modelling hematopoiesis mediated by growth factors with applications to periodic hematological diseases

    CERN Preprints

    Adimy, Mostafa; Ruan, Shigui; 10.1007/s11538-006-9121-9

    2009-01-01

    Hematopoiesis is a complex biological process that leads to the production and regulation of blood cells. It is based upon differentiation of stem cells under the action of growth factors. A mathematical approach of this process is proposed to carry out explanation on some blood diseases, characterized by oscillations in circulating blood cells. A system of three differential equations with delay, corresponding to the cell cycle duration, is analyzed. The existence of a Hopf bifurcation for a positive steady-state is obtained through the study of an exponential polynomial characteristic equation with delay-dependent coefficients. Numerical simulations show that long period oscillations can be obtained in this model, corresponding to a destabilization of the feedback regulation between blood cells and growth factors. This stresses the localization of periodic hematological diseases in the feedback loop.

  1. Distance, Growth Factor, and Dark Energy Constraints from Photometric Baryon Acoustic Oscillation and Weak Lensing Measurements

    Astrophysics (arXiv)

    Hu Zhan; Lloyd Knox; J. Anthony Tyson

    2008-09-04

    Baryon acoustic oscillations (BAOs) and weak lensing (WL) are complementary probes of cosmology. We explore the distance and growth factor measurements from photometric BAO and WL techniques and investigate the roles of the distance and growth factor in constraining dark energy. We find for WL that the growth factor has a great impact on dark energy constraints but is much less powerful than the distance. Dark energy constraints from WL are concentrated in considerably fewer distance eigenmodes than those from BAO, with the largest contributions from modes that are sensitive to the absolute distance. Both techniques have some well determined distance eigenmodes that are not very sensitive to the dark energy equation of state parameters w_0 and w_a, suggesting that they can accommodate additional parameters for dark energy and for the control of systematic uncertainties. A joint analysis of BAO and WL is far more powerful than either technique alone, and the resulting constraints on the distance and growth factor will be useful for distinguishing dark energy and modified gravity models. The Large Synoptic Survey Telescope (LSST) will yield both WL and angular BAO over a sample of several billion galaxies. Joint LSST BAO and WL can yield 0.5% level precision on ten comoving distances evenly spaced in log(1+z) between redshift 0.3 and 3 with cosmic microwave background priors from Planck. In addition, since the angular diameter distance, which directly affects the observables, is linked to the comoving distance solely by the curvature radius in the Friedmann-Robertson-Walker metric solution, LSST can achieve a pure metric constraint of 0.017 on the mean curvature parameter Omega_k of the universe simultaneously with the constraints on the comoving distances.

  2. The growth of galactic bulges through mergers in LCDM haloes revisited. II. Morphological mix evolution

    CERN Preprints

    Avila-Reese, Vladimir; Lacerna, Ivan

    2013-01-01

    The mass aggregation and merger histories of present-day distinct haloes selected from the cosmological Millennium Simulations I and II are mapped into stellar mass aggregation and galaxy merger histories of central galaxies by using empirical stellar-to-halo and stellar-to-gas mass relations. The growth of bulges driven by the galaxy mergers/interactions is calculated using analytical recipes. The predicted bulge demographics at redshift z~0 is consistent with observations (Zavala+2012). Here we present the evolution of the morphological mix (traced by the bulge-to-total mass ratio, B/T) as a function of mass up to z=3. This mix remains qualitatively the same up to z~1: B/T0.45 at large masses. At z>1, the fractions of disc-dominated and bulgeless galaxies increase strongly, and by z~2 the era of pure disc galaxies is reached. Bulge-dominated galaxies acquire such a morphology, and most of their mass, following a downsizing trend. Since our results are consistent with several recent observational studies of ...

  3. Observational calibration of the projection factor of Cepheids I. The Type II Cepheid kappa Pavonis

    CERN Preprints

    Breitfelder, Joanne; Mérand, Antoine; Gallenne, Alexandre; Szabados, Laszlo; Anderson, Richard; Willson, Matthew; Bouquin, Jean-Baptiste Le

    2015-01-01

    The distances of pulsating stars, in particular Cepheids, are commonly measured using the parallax of pulsation technique. The different versions of this technique combine measurements of the linear diameter variation (from spectroscopy) and the angular diameter variation (from photometry or interferometry) amplitudes, to retrieve the distance in a quasi-geometrical way. However, the linear diameter amplitude is directly proportional to the projection factor (hereafter p-factor), which is used to convert spectroscopic radial velocities (i.e., disk integrated) into pulsating (i.e., photospheric) velocities. The value of the p-factor and its possible dependence on the pulsation period are still widely debated. Our goal is to measure an observational value of the p-factor of the type-II Cepheid kappa Pavonis, whose parallax was measured with an accuracy of 5% using HST/FGS. We used this parallax as a starting point to derive the p-factor of kappa Pav, using the SPIPS technique, which is a robust version of the p...

  4. 2D protrusion but not motility predicts growth factor–induced cancer cell migration in 3D collagen

    MIT - DSpace

    Meyer, Aaron Samuel

    Growth factor–induced migration is a critical step in the dissemination and metastasis of solid tumors. Although differences in properties characterizing cell migration on two-dimensional (2D) substrata versus within ...

  5. Select Nutrients, Secreted Phosphoprotein 1 and Insulin-Like Growth Factor 2: Effects of Trophectoderm of Ovine Conceptuses 

    Texas A&M University - TxSpace

    Kim, Jin Young

    2011-08-08

    of pregnancy. Among them, several components of histotroph including nutrients, cell matrix proteins and growth factors may activate mTOR (mammalian target of rapamycin; also known as FRAP1) to stimulate hypertrophy, hyperplasia, and/or migration of conceptus...

  6. DACH1, a Zona Glomerulosa Selective Gene in the Human Adrenal, Activates Transforming Growth Factor-? Signaling and Suppresses Aldosterone Secretion.

    University of Cambridge - Dspace

    Zhou, Junhua; Shaikh, Lalarukh Haris; Neogi, Sudeshna G.; McFarlane, Ian; Zhao, Wanfeng; Figg, Nichola; Brighton, Cheryl A.; Maniero, Carmela; Teo, Ada E.D.; Azizan, Elena A. B.; Brown, Morris J.

    2015-03-16

    between our top ZG genes and those in rodent ZG. In conclusion, (1) the transcriptome profile of human ZG differs from rodent ZG, (2) DACH1 inhibits aldosterone secretion in human adrenals, and (3) transforming growth factor-? signaling pathway...

  7. Requirement for fibroblast growth factor receptor 1 in hematopoietic stem cells under stress but not during homeostasis

    University of Kansas - KU ScholarWorks

    Ross, Jason Thomas

    2010-07-23

    Fibroblast growth factor (FGF) signaling promotes hematopoietic stem cell (HSC) expansion in vitro; however, its in vivo function remains unknown. Conditional deletion of FGFR1, predominantly expressed in HSCs, did not affect homeostatic...

  8. Multivariate Perturbation of a Growth Factor-Cytokine Signalling Network Reveals Complex Systemic Responses in Glioblastoma Cells

    MIT - DSpace

    Tang, Yew Chung

    Glioblastoma cells can evade TRAIL-induced apoptosis through various strategies involving the growth factor-activated MEK–MAPK/ERK and PI3K–Akt/PKB pro-survival signalling cascades. Although these signalling cascades have ...

  9. Chronic Activation of Wild-Type Epidermal Growth Factor Receptor and Loss of Cdkn2a Cause Mouse Glioblastoma Formation

    MIT - DSpace

    Whittaker, Charles A.

    Glioblastoma multiforme (GBM) is characterized by overexpression of epidermal growth factor receptor (EGFR) and loss of the tumor suppressors Ink4a/Arf. Efforts at modeling GBM using wild-type EGFR in mice have proven ...

  10. Intramyocardial sustained delivery of placental growth factor using nanoparticles as a vehicle for delivery in the rat infarct model

    University of Kansas - KU ScholarWorks

    ZM, Binsalamah; Paul, Arghya; Khan, Afshan Afsar; Prakash, Satya; Shum-Tim, Dominique

    2011-10-31

    Acute myocardial ischemia results in scar formation with ventricular dilatation and eventually heart failure. Placental growth factor (PlGF) is reported to stimulate angiogenesis and improve cardiac function. In this study, ...

  11. Intramyocardial sustained delivery of placental growth factor using nanoparticles as a vehicle for delivery in the rat infarct model

    University of Kansas - KU ScholarWorks

    Binsalamah, Ziyad Mohammed; Paul, Arghya; Khan, Afshan Afsar; Prakash, Satya; Shum-Tim, Dominique

    2011-10-31

    Acute myocardial ischemia results in scar formation with ventricular dilatation and eventually heart failure. Placental growth factor (PlGF) is reported to stimulate angiogenesis and improve cardiac function. In this study, it was hypothesized...

  12. Molecular Cell, Vol. 12, 271280, August, 2003, Copyright 2003 by Cell Press ReviewIntegration of Growth Factor

    Biology and Medicine Websites

    Nghiem, Paul

    ). PTENSignaling networks that promote cell growth are fre- quently dysregulated in cancer. One regulatory net-thesis. Here, we discuss how this network is regulated by both extracellular signals, such as growth factors- and nutrient-regulated sig- naling network containing the signaling proteins phos-whose function is lost

  13. Thermodynamic Characterization of Mutants of Human Fibroblast Growth Factor 1 with an Increased Physiological Half-Life

    Biology and Medicine Websites

    Blaber, Michael

    fibroblast growth factor (FGF-1) is a potent mitogen and angiogenic factor, with reportedly poor thermal-life and specific activity as well as decrease the dependence upon heparin for full activity. However. Thus, the increased half-life previously reported for these mutations does not correlate with thermal

  14. Target of rapamycin (TOR): an integrator of nutrient and growth factor signals and coordinator of cell growth and cell cycle progression

    Biology and Medicine Websites

    Target of rapamycin (TOR): an integrator of nutrient and growth factor signals and coordinator their size. The target of rapamycin (TOR) is an evolutionarily conserved kinase that integrates signals from and cell cycle progression coordi- nately. In mammals, TOR is best known to regulate translation through

  15. Hydrogen isotope fractionation in freshwater and marine algae: II. Temperature and nitrogen limited growth rate effects

    Geosciences Websites

    Sachs, Julian P.

    Hydrogen isotope fractionation in freshwater and marine algae: II. Temperature and nitrogen limited isotope fractionation in freshwater algae: I. Variations among lipids and spe- cies. Organic Geochemistry. Two species of freshwater green algae, Eudorina unicocca and Volvox aureus, were grown in batch

  16. Damping of the baryon acoustic oscillations in the matter power spectrum as a probe of the growth factor

    Astrophysics (arXiv)

    Hidenori Nomura; Kazuhiro Yamamoto; Takahiro Nishimichi

    2008-10-20

    We investigate the damping of the baryon acoustic oscillations (BAO) signature in the matter power spectrum due to the quasi-nonlinear clustering of density perturbations. On the basis of the third order perturbation theory, we construct a fitting formula of the damping in an analytic way. This demonstrates that the damping is closely related with the growth factor and the amplitude of the matter power spectrum. Then, we investigate the feasibility of constraining the growth factor through a measurement of the damping of the BAO signature. An extension of our formula including higher order corrections of density perturbations is also discussed.

  17. Nucleation and growth in one dimension, part II: Application to DNA replication kinetics

    Condensed Matter (arXiv)

    Suckjoon Jun; John Bechhoefer

    2004-08-12

    Inspired by recent experiments on DNA replication, we apply a one-dimensional nucleation-and-growth model to DNA-replication kinetics, focusing on how to extract the time-dependent nucleation rate I(t) and growth speed v from data. We discuss generic experimental problems, namely spatial inhomogeneity, measurement noise, and finite-size effects. After evaluating how each of these affects the measurements of I(t) and v, we give guidelines for the design of experiments. These ideas are then discussed in the context of the DNA-replication experiments.

  18. Dark Matter Halo Growth II: Diffuse Accretion and its Environmental Dependence

    CERN Preprints

    Fakhouri, Onsi

    2009-01-01

    Dark matter haloes in Lambda CDM simulations grow by mergers with other haloes as well as accretion of "diffuse" non-halo material. We quantify the mass growth rates via these two processes, dM_mer/dt and dM_dif/dt, and their dependence on halo environment using the ~500,000 haloes in the Millennium simulation. Adopting a local mass density parameter as a measure of halo environment, we find the two rates show strong but opposite environmental dependence, with mergers playing an increasingly important role for halo growths in overdense regions and diffuse accretion dominating growth in voids. This behaviour is independent of the mass cuts used to define haloes vs non-haloes. For galaxy-scale haloes, these two opposite correlations largely cancel out, but a weak environmental dependence remains that results in a slightly lower mean total growth rate, and hence an earlier mean formation redshift, for haloes in denser regions. The mean formation redshift of the ~5000 cluster-mass haloes, on the other hand, appea...

  19. On growth of spinodal instabilities in nuclear matter-II:asymmetric matter

    Nuclear Theory (arXiv)

    F. Acar; S. Ayik; O. Yilmaz; A. Gokalp

    2015-09-01

    As an extension of our previous work, the growth of density fluctuations in the spinodal region of charge asymmetric nuclear matter is investigated in the basis of the stochastic mean-field approach in the non-relativistic framework. A complete treatment of density correlation functions are presented by including collective modes and non-collective modes as well.

  20. Deep-Sea Research II 50 (2003) 635653 Phytoplankton growth and biological response to iron

    Geosciences Websites

    Wang, Wendy

    2003-01-01

    and zinc addition in the Ross Sea and Antarctic Circumpolar Current along 1701W Kenneth H. Coalea , Xiujun to determine the community response to added iron and zinc and their effect on phytoplankton growth. Seawater was collected into acid-cleaned 20-l polycarbonate carboys and incubated with varying additions of iron and zinc

  1. A Generalized Preferential Attachment Model for Business Firms Growth Rates: II. Mathematical Treatment

    CERN Preprints

    Buldyrev, S V; Riccaboni, M; Yamasaki, K; Fu, D; Matia, K; Stanley, H E

    2006-01-01

    We present a preferential attachment growth model to obtain the distribution $P(K)$ of number of units $K$ in the classes which may represent business firms or other socio-economic entities. We found that $P(K)$ is described in its central part by a power law with an exponent $\\phi=2+b/(1-b)$ which depends on the probability of entry of new classes, $b$. In a particular problem of city population this distribution is equivalent to the well known Zipf law. In the absence of the new classes entry, the distribution $P(K)$ is exponential. Using analytical form of $P(K)$ and assuming proportional growth for units, we derive $P(g)$, the distribution of business firm growth rates. The model predicts that $P(g)$ has a Laplacian cusp in the central part and asymptotic power-law tails with an exponent $\\zeta=3$. We test the analytical expressions derived using heuristic arguments by simulations. The model might also explain the size-variance relationship of the firm growth rates.

  2. T-Quark Mass and Hyperfinite II1 von Neumann factor

    Physics (arXiv)

    Frank Smith Jr.

    2004-02-12

    A theoretical model based on the D4 Lie Algebra and Hermitian Symmetric Spaces D5 / D4xU(1) and E6 / D5xU(1) allows calculation of ratios of tree-level particle masses (quark masses being constituent masses): Me-neutrino = Mmu-neutrino = Mtau-neutrino = 0 Me = 0.5110 MeV (assumed); Md = Mu = 312.8 MeV; Mmu = 104.8 MeV; Ms = 625 MeV; Mc = 2.09 GeV; Mtau = 1.88 GeV; Mb = 5.63 GeV; Mt = 130 GeV; W+/- mass = 80.326 GeV; Z0 mass = 91.862 GeV; Higgs mass = 145.8 GeV; Higgs VEV = 252.5 GeV; and ratios of force strength constants: (Ggravity)(Mproton)2 = 5 x 10-39 (asssumed); EM fine structure constant = 1/137.03608; Gfermi = (Gweak)(Mproton)2 = 1.02 x 10-5; color force strength = 0.6286 (at 0.245 GeV). With Nonperturbative QCD etc taken into account the color force strength = 0.123 (at 91 GeV). Fermilab (1994) says that Mt = about 170 GeV but I say (1984) that Mt = about 130 GeV. The theoretical Lagrangian is based on the structure of the real Cl(1,7) Clifford algebra which, through 8-fold periodicity, may produce a real Hyperfinite II1 von Neumann Algebra factor.

  3. SMBH growth parameters in the early Universe of Millennium and Millennium-II simulations

    CERN Preprints

    Smole, Majda; Martinovic, Nemanja

    2015-01-01

    We make BH merger trees from Millennium and Millennium-II Simulations to find under what conditions 10^9Msun SMBH can form by redshift z=7. In order to exploit both: large box size in the Millennium Simulation; and large mass resolution in the Millennium-II Simulation, we develop a method to combine these two simulations together, and use the Millennium-II merger trees to predict the BH seeds to be used in the Millennium merger trees. We run multiple semi-analytical simulations where SMBHs grow through mergers and episodes of gas accretion triggered by major mergers. As a constraint, we use observed BH mass function at redshift z=6. We find that in the light of the recent observations of moderate super-Eddington accretion, low mass seeds (100Msun) could be the progenitors of high redshift SMBHs (z~7), as long as the accretion during the accretion episodes is moderately super-Eddington, where f_Edd=3.7 is the effective Eddington ratio averaged over 50 Myr.

  4. Myeloid growth factors promote resistance to mycobacterial infection by forestalling granuloma necrosis through macrophage replenishment

    University of Cambridge - Dspace

    Pagan, Antonio J.; Yang, Chao-Tsung; Cameron, James; Swaim, Laura E.; Ellet, Felix; Lieschke, Graham J.; Ramakrishnan, Lalita

    2015-06-26

    new bacterial growth niches. Thus, a mycobacterium-driven increase in macrophage demand promotes intracellular bacterial growth in the early granuloma. Granuloma macrophages can then undergo necrosis, releasing the bacteria into the extracellular...

  5. Electrostatic Barrier Against Dust Growth in Protoplanetary Disks. II. Measuring the Size of the "Frozen" Zone

    CERN Preprints

    Okuzumi, Satoshi; Takeuchi, Taku; Sakagami, Masa-aki

    2010-01-01

    Coagulation of submicron-sized dust grains is the initial step of dust evolution in protoplanetary disks. This process can be significantly slowed down by the negative charging of dust aggregates in the weakly ionized disks. We apply the growth criteria obtained in Paper I to finding out a location where the charging stalls dust growth at the fractal growth stage, to which we will refer as the "frozen zone." We find that the frozen zone likely exists and covers a wide region of a disk, typically from a few AU to 100 AU from the central star. The maximum mass of the "frozen" fractal aggregates is approximately 10^-7 g at 1 AU and as small as a few monomer masses at 100 AU. The disk mass and the monomer size do not significantly affect the size of the frozen zone within a realistic range of these parameters. Strong turbulence can significantly reduce the size of the frozen zone, but such turbulence will cause the fragmentation of macroscopic aggregates made after the fractal stage. We consider the vertical mixi...

  6. Kynurenine inhibits fibroblast growth factor 2-mediated expression of crystallins and MIP26 in lens epithelial cells

    Biotechnology Websites

    Kynurenine inhibits fibroblast growth factor 2-mediated expression of crystallins and MIP26 in lens Article history: Received 13 January 2010 Received in revised form 16 April 2010 Accepted 10 May 2010 Available online 15 May 2010 Keywords: Lens epithelial cell Kynurenine FGF-2 FGFR1 Crystallin MIP26

  7. Golgi Calcium Pump Secretory Pathway Calcium ATPase 1 (SPCA1) Is a Key Regulator of Insulin-like Growth Factor

    Biology and Medicine Websites

    Kenny, Paraic

    -like Growth Factor Receptor (IGF1R) Processing in the Basal-like Breast Cancer Cell Line MDA-MB-231* Received to the Golgi. Inhibition of SPCA1 in MDA-MB-231 cells produced pronounced changes in cell proliferation induction or changes in global cal- cium signaling. Instead, the effects of SPCA1 inhibition in MDA-MB-231

  8. : Rosiglitazone Prevents High Glucose-Induced Vascular Endothelial Growth Factor and Collagen IV Expression in Cultured Mesangial Cells.

    Biology and Medicine Websites

    Huang, Ching-Tsan

    : Rosiglitazone Prevents High Glucose-Induced Vascular Endothelial Growth Factor and Collagen IV) collagen IV PKC- rosiglitazone (RSG) PPAR (5.5 mM) (GW9662) PPAR ROS VEGF RSG PPAR VEGF collagen IV protein kinase C (PKC) Keywordsrosiglitazone, VEGF, collagen IV, mesangial cell (progressive

  9. Plasma Membrane Phospholipid Scramblase 1 Is Enriched in Lipid Rafts and Interacts with the Epidermal Growth Factor Receptor

    Biology and Medicine Websites

    Pike, Linda J.

    Plasma Membrane Phospholipid Scramblase 1 Is Enriched in Lipid Rafts and InteractsVised Manuscript ReceiVed April 8, 2002 ABSTRACT: We have identified physical and functional interactions between the epidermal growth factor (EGF) receptor and phospholipid scramblase 1 (PLSCR1), an endofacial plasma membrane

  10. 5022 Biochemistry 1983, 22, 5022-5028 Conversion of Nerve Growth Factor-Receptor Complexes to a Slowly

    Biology and Medicine Websites

    Vale, Ronald D.

    to a Slowly Dissociating, Triton X-100 Insoluble State by Anti Nerve Growth Factor Antibodied Ronald D. Vale of Triton X-100 insolubleNGF binding from 10% to 50% possibly reflecting an association of the NGF receptor & Bothwell, 1981) and by their relative insolubility after Triton X-100 extraction (Schechter & Bothwell

  11. Systematic assessment of growth factor treatment on biochemical and biomechanical properties of engineered articular cartilage constructs1

    Engineering Websites

    Athanasiou, Kyriacos

    of engineered articular cartilage constructs1 B. D. Elder M.S. and K. A. Athanasiou Ph.D., P.E.* Department: To determine the effects of bone morphogenetic protein-2 (BMP-2), insulin-like growth factor (IGF-seeded PGA scaffolds, and indicated that treatment with bone morphogenetic protein-2 (BMP-2) and in- sulin

  12. Facile growth factor immobilization platform based on engineered phage So Young Yoo, Anna Merzlyak and Seung-Wuk Lee*

    Materials Science Websites

    Lee, Seung-Wuk

    and cell morphology. We report a strategy for immobilizing growth factors on genetically engineered phage matrices for tissue regeneration. We modified M13 phages to express biotin-like peptides (HPQ) and of numerous cell types. Designing biomimetic materials with precisely controlled structural organization

  13. A Numerical Study of Pulsatile Flow Through a Hollow Fiber Cartridge: Growth Factor-Receptor Binding and Dissociation Analysis

    Computer Technologies and Information Sciences Websites

    Zhang, Jun

    of a bioreactor. The multi-physics of fluid flow, the kinetics of fibroblast growth factor (FGF-2) binding to its species, FGF-2, FGFR and HSPG. They measured kinetic binding rate constants experimentally-Receptor Binding and Dissociation Analysis Changjiang Zhang Department of Computer Science University of Kentucky

  14. 1583Journal of Thoracic Oncology Volume7,Number10,October2012 Introduction: Erlotinib (Tarceva) is an epidermal growth factor

    Mathematics Websites

    Foo, Jasmine

    ) is an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor, which effectively tar- gets EGFR faster, even if make-up doses are attempted. Conclusions: For existing and new kinase inhibitors-molecule tyrosine kinase inhibitors (TKIs) in cancer therapy is that prolonged target inhibition is essential. Thus

  15. An in vivo study on the effect of scaffold geometry and growth factor release on the healing of bone defects

    Materials Science Websites

    Hasýrcý, Vasýf

    -implantation, the defects were evaluated by CTscan and histology. Analysis revealed that the basic architecture, having (34.9 Æ10.7). It also showed the highest histological analysis scores with a high amount of bone forma the growth factor-free basic scaffold at 6 weeks (BMD 206.8 Æ15.7). Histological analysis also revealed new

  16. doi: 10.1111/j.1469-1809.2012.00726.x Association of the Vascular Endothelial Growth Factor

    Engineering Websites

    ). In the overall analysis, no significant association between the ­460C/T and +405G/C polymorphisms and risk. C), respectively. Furthermore, stratified analysis showed that significantly strong associationdoi: 10.1111/j.1469-1809.2012.00726.x Association of the Vascular Endothelial Growth Factor Gene

  17. BioSystems xxx (2005) xxxxxx A network model of early events in epidermal growth factor receptor

    Biotechnology Websites

    Blinov, Michael L.

    2005-01-01

    BioSystems xxx (2005) xxx­xxx A network model of early events in epidermal growth factor receptor.06.014 BIO-2484; No. of Pages 16 #12;2 M.L. Blinov et al. / BioSystems xxx (2005) xxx­xxx lent character

  18. Large time asymptotics of growth models on space-like paths II: PNG and parallel TASEP

    Mathematical Physics (arXiv)

    Alexei Borodin; Patrik L. Ferrari; Tomohiro Sasamoto

    2007-07-28

    We consider the polynuclear growth (PNG) model in 1+1 dimension with flat initial condition and no extra constraints. The joint distributions of surface height at finitely many points at a fixed time moment are given as marginals of a signed determinantal point process. The long time scaling limit of the surface height is shown to coincide with the Airy_1 process. This result holds more generally for the observation points located along any space-like path in the space-time plane. We also obtain the corresponding results for the discrete time TASEP (totally asymmetric simple exclusion process) with parallel update.

  19. Growth of galactic bulges by mergers. II. Low-density satellites

    CERN Preprints

    Eliche-Moral, M C; López-Aguerri, J A; Gonzalez-Garcia, A C

    2006-01-01

    Satellite accretion events have been invoked for mimicking the internal secular evolutionary processes of bulge growth. However, N-body simulations of satellite accretions have paid little attention to the evolution of bulge photometric parameters, to the processes driving this evolution, and to the consistency of this evolution with observations. We want to investigate whether satellite accretions indeed drive the growth of bulges, and whether they are consistent with global scaling relations of bulges and discs. We perform N-body models of the accretion of satellites onto disc galaxies. A Tully-Fisher (M \\propto V_{rot}^ {alpha_TF}) scaling between primary and satellite ensures that density ratios, critical to the outcome of the accretion, are realistic. We carry out a full structural, kinematic and dynamical analysis of the evolution of the bulge mass, bulge central concentration, and bulge-to-disc scaling relations. The remnants of the accretion have bulge-disc structure. Both the bulge-to-disc ratio (B/D...

  20. The BOSS-WiggleZ overlap region II: dependence of cosmic growth on galaxy type

    CERN Preprints

    Marín, Felipe A; Blake, Chris; Koda, Jun; Kazin, Eyal; Schneider, Donald P

    2015-01-01

    The anisotropic galaxy 2-point correlation function (2PCF) allows measurement of the growth of large-scale structures from the effect of peculiar velocities on the clustering pattern. We present new measurements of the auto- and cross- correlation function multipoles of 69,180 WiggleZ and 46,380 BOSS-CMASS galaxies sharing an overlapping volume of ~0.2 (Gpc/h)^3. Analysing the redshift-space distortions (RSD) of galaxy 2-point statistics for these two galaxy tracers, we test for systematic errors in the modelling depending on galaxy type and investigate potential improvements in cosmological constraints. We build a large number of mock galaxy catalogues to examine the limits of different RSD models in terms of fitting scales and galaxy type, and to study the covariance of the measurements when performing joint fits. For the galaxy data, fitting the monopole and quadrupole of the WiggleZ 2PCF on scales 24growth rate $f\\sigma_8$(z=0.54)=0.409$\\pm$0.059,...

  1. An Ex-Vivo Model using Human Osteoarthritic Cartilage Demonstrates the Release of Bioactive Insulin-like growth factor- 1 from a Collagen-Glycosaminoglycan Scaffold.

    University of Cambridge - Dspace

    Wardale, J.; Mullen, L.; Howard, D.; Ghose, S.; Rushton, N.

    2015-06-09

    . Defect models in experimental animals and matrix requirements. Clin Orthop Relat Res, 1999(367 Suppl): p. S135-46. 4. Schmidt, M.B., E.H. Chen, and S.E. Lynch, A review of the effects of insulin-like growth factor and platelet derived growth factor...

  2. Smad2 sequence 1 phosphorylated at the SSXS motif as a result of the activation of the transforming growth factor beta signaling pathway.

    Biology and Medicine Websites

    growth factor beta signaling pathway. participates_in GO:0007165 signal transduction [PMID: 8752209] participates_in GO:0007179 regulation of transcription, DNA-dependent [PMID: 9689110][PMID:15690394] participates_in GO:0007179 transforming growth factor beta receptor signaling pathway [PMID: 8752209] has

  3. Author's personal copy Effect of environmental factors on survival and growth of quahog parasite

    Biology and Medicine Websites

    Allam, Bassem

    and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000, USA a r t i c l e i n f o Article concentration; individually or combined) on QPX survival in artificial seawater and parasite growth in culture

  4. On The Structure Of The Chan-Paton Factors For D-Branes In Type II Orientifolds

    HEP - Theory (arXiv)

    Dongfeng Gao; Kentaro Hori

    2010-04-22

    We determine the structure of the Chan-Paton factors of the open strings ending on space filling D-branes in Type II orientifolds. Through the analysis, we obtain a rule concerning possible distribution of O-plane types. The result is applied to classify the topology of D-branes in terms of Fredholm operators and K-theory, deriving a proposal made earlier and extending it to more general cases. It is also applied to compactifications with N=1 supersymmetry in four-dimensions. We adapt and develop the language of category in this context, and use it to describe some decay channels.

  5. RHAPSODY-G simulations II - Baryonic growth and metal enrichment in massive galaxy clusters

    CERN Preprints

    Martizzi, Davide; Wu, Hao-Yi; Evrard, August E; Teyssier, Romain; Wechsler, Risa H

    2015-01-01

    We study the evolution of the stellar component and the metallicity of both the intracluster medium and of stars in massive ($M_{\\rm vir}\\approx 6\\times 10^{14}$ M$_{\\odot}$) simulated galaxy clusters from the RHAPSODY-G suite in detail and compare them to observational results. The simulations were performed with the AMR code RAMSES and include the effect of AGN feedback at the sub-grid level. AGN feedback is required to produce realistic galaxy and cluster properties and plays a role in mixing material in the central regions and regulating star formation in the central galaxy. In our low resolution runs with fiducial stellar yields, we find that stellar and ICM metallicities are a factor of two lower than in observations, however they tend to converge to the observed values $\\sim 0.3$ Z$_{\\odot}$ as the resolution is increased. We find that cool core clusters exhibit steeper metallicity gradients than non-cool core clusters, in qualitative agreement with observations. We verify that the ICM metallicities me...

  6. High energy factorization in nucleus-nucleus collisions II - Multigluon correlations

    HEP - Phenomenology (arXiv)

    F. Gelis; T. Lappi; R. Venugopalan

    2008-07-08

    We extend previous results (arXiv:0804.2630 [hep-ph]) on factorization in high-energy nucleus-nucleus collisions by computing the inclusive multigluon spectrum to next-to-leading order. The factorization formula is strictly valid for multigluon emission in a slice of rapidity of width \\Delta Y< 1/\\alpha_s. Our results show that often neglected disconnected graphs dominate the inclusive multigluon spectrum and are essential to prove factorization for this quantity. These results provide a dynamical framework for the Glasma flux tube picture of the striking "ridge"-like correlation seen in heavy ion collisions.

  7. Synergistic and Additive Effects of Hydrostatic Pressure and Growth Factors on Tissue Formation

    Biology and Medicine Websites

    Athanasiou, Kyriacos

    , a 363 full-factorial design of HP magnitude (1, 5, 10 MPa) and frequency (0, 0.1, 1 Hz) was used), with corresponding increases in collagen content. Phase II employed a 363 full-factorial design of HP (no HP, 5 MPa disc, bone, bladder, and vasculature. Though studies have been performed in assessing the role of HP

  8. II_{\\infty} Factors and M-theory in Asymptotically Flat Space-Time

    HEP - Theory (arXiv)

    T. Banks

    2006-07-03

    I discuss a formulation of M-theory at null infinity, which is based on general principles of holographic space-time, and is manifestly covariant. The construction utilizes a certain Type II Von Neumann algebra, which provides a kinematic framework, alternative to Fock Space, for describing the scattering states of eleven dimensional asymptotically flat M-theory. The construction provides a greatly clarified statement of the connection between SUSY and holography. I make preliminary remarks about dynamical equations for the S-matrix, and compactifications.

  9. Chlamydia muridarum Evades Growth Restriction by the IFN--Inducible Host Resistance Factor Irgb101

    Biology and Medicine Websites

    Starnbach, Michael

    , IFN- can effectively restrict growth of the human pathogen Chlamydia trachomatis but fails to control model of C. tracho- matis infection that adequately recapitulates human disease (4­6). A more thorough model that better mimics human C. trachomatis infections. All Chlamydia genera undergo a biphasic

  10. International Biodeterioration & Biodegradation 55 (2005) 4553 Environmental factors influencing microbial growth inside the

    Biology and Medicine Websites

    Blanchette, Robert A.

    2005-01-01

    microbial growth inside the historic expedition huts of Ross Island, Antarctica B.W. Helda,Ã, J.A. Jurgensa; accepted 9 June 2004 Abstract Explorers to Antarctica during the Heroic Era of exploration built three wooden huts on Ross Island, Antarctica in 1902, 1908 and 1911. The structures were used as bases

  11. Nanosize effect on the hygroscopic growth factor of aerosol particles G. Biskos,1

    Environmental Management and Restoration Websites

    mobility diameters of 6 to 60 nm were measured using a tandem nano-Differential Mobility Analyzer threshold is 2 nm as the particle size approaches bond distances [Lu and Jiang, 2005], although. [6] In this paper, we report new measurements of the hygroscopic growth of nanoparticles and evalu

  12. ESCRT factors restrict mycobacterial growth Jennifer A. Philips*, Maura C. Porto*, Hui Wang*, Eric J. Rubin

    Biology and Medicine Websites

    Higgins, Darren

    growth. Mycobacterium phagosome tuberculosis ubiquitin One-third of the human population is infected with M. tuberculosis, and each year it causes 2­3 million deaths. The success of M. tuberculosis acidify or recruit late endosomal markers, such as Rab7, or mature lyso- somal hydrolases. M. tuberculosis

  13. High resolution spectroscopy for Cepheids distance determination. II. A period- projection factor relation

    Astrophysics (arXiv)

    N. Nardetto; D. Mourard; Ph. Mathias; A. Fokin; D. Gillet

    2008-04-08

    The projection factor is a key quantity for the interferometric Baade-Wesselink (hereafter IBW) and surface-brightness (hereafter SB) methods of determining the distance of Cepheids. Indeed, it allows a consistent combination of angular and linear diameters of the star. We aim to determine consistent projection factors that include the dynamical structure of the Cepheids' atmosphere. Methods. Hydrodynamical models of delta Cep and l Car have been used to validate a spectroscopic method of determining the projection factor. This method, based on the amplitude of the radial velocity curve, is applied to eight stars observed with the HARPS spectrometer. The projection factor is divided into three sub-concepts : (1) a geometrical effect, (2) the velocity gradient within the atmosphere, and (3) the relative motion of the "optical" pulsating photosphere compared to the corresponding mass elements (hereafter fo-g). Both, (1) and (3) are deduced from geometrical and hydrodynamical models, respectively, while (2) is derived directly from observations. The Fe I 4896.439 A line is found to be the best one to use in the context of IBW and SB methods. A coherent and consistent period-projection factor relation (hereafter Pp relation) is derived for this specific spectral line: p = [0.064 +- 0.020] log P + [1.376 +- 0.023]. This procedure is then extended to derive dynamic projection factors for any spectral line of any Cepheid. This Pp relation is an important tool for removing bias in the calibration of the period-luminosity relation of Cepheids. Moreover, it reveals a new physical quantity fo-g to investigate in the near future.

  14. OPE for all Helicity Amplitudes II. Form Factors and Data analysis

    CERN Preprints

    Basso, Benjamin; Cordova, Lucia; Sever, Amit; Vieira, Pedro

    2015-01-01

    We present the general flux tube integrand for MHV and non-MHV amplitudes, in planar N = 4 SYM theory, up to a group theoretical rational factor. We find that the MHV and non-MHV cases only differ by simple form factors which we derive. This information allows us to run the operator product expansion program for all sorts of non-MHV amplitudes and to test the recently proposed map with the so called charged pentagons transitions. Perfect agreement is found, on a large sample of non-MHV amplitudes, with the perturbative data available in the literature.

  15. OPE for all Helicity Amplitudes II. Form Factors and Data analysis

    HEP - Theory (arXiv)

    Benjamin Basso; Joao Caetano; Lucia Cordova; Amit Sever; Pedro Vieira

    2015-08-12

    We present the general flux tube integrand for MHV and non-MHV amplitudes, in planar N = 4 SYM theory, up to a group theoretical rational factor. We find that the MHV and non-MHV cases only differ by simple form factors which we derive. This information allows us to run the operator product expansion program for all sorts of non-MHV amplitudes and to test the recently proposed map with the so called charged pentagons transitions. Perfect agreement is found, on a large sample of non-MHV amplitudes, with the perturbative data available in the literature.

  16. Analogue algorithm for parallel factorization of an exponential number of large integers II. Optical implementation

    Quantum Physics (arXiv)

    Vincenzo Tamma

    2015-05-18

    We report a detailed analysis of the optical realization [1, 3, 2, 4] of the analogue algorithm described in the first paper of this series [5] for the simultaneous factorization of an exponential number of integers. Such an analogue procedure, which scales exponentially in the context of first order interference, opens up the horizon to polynomial scaling by exploiting multi-particle quantum interference.

  17. Molecular line intensities as measures of cloud masses - II. Conversion factors for specific galaxy types

    Astrophysics (arXiv)

    T. A. Bell; S. Viti; D. A. Williams

    2007-04-19

    We present theoretically-established values of the CO-to-H2 and C-to-H2 conversion factors that may be used to estimate the gas masses of external galaxies. We consider four distinct galaxy types, represented by M51, NGC 6946, M82 and SMC N27. The physical parameters that best represent the conditions within the molecular clouds in each of the galaxy types are estimated using a chi^2 analysis of several observed atomic fine structure and CO rotational lines. This analysis is explored over a wide range of density, radiation field, extinction, and other relevant parameters. Using these estimated physical conditions in methods that we have previously established, CO-to-H2 conversion factors are then computed for CO transitions up to J=9-8. For the conventional CO(1-0) transition, the computed conversion factor varies significantly below and above the canonical value for the Milky Way in the four galaxy types considered. Since atomic carbon emission is now frequently used as a probe of external galaxies, we also present, for the first time, the C-to-H2 conversion factor for this emission in the four galaxy types considered.

  18. Role of macrophage colony stimulating factor-1 (CSF-1) in postnatal growth 

    Edinburgh, University of - Research Archive

    Gow, Deborah Jane

    2013-11-29

    Colony-Stimulating Factor (CSF-1) is required for the proliferation, differentiation and survival of cells of the mononuclear phagocyte lineage. Mice with a mutation in their CSF-1 gene demonstrate abnormal development ...

  19. Form factors in finite volume II:disconnected terms and finite temperature correlators

    HEP - Lattice (arXiv)

    B. Pozsgay; G. Takacs

    2007-06-25

    Continuing the investigation started in a previous work, we consider form factors of integrable quantum field theories in finite volume, extending our investigation to matrix elements with disconnected pieces. Numerical verification of our results is provided by truncated conformal space approach. Such matrix elements are important in computing finite temperature correlation functions, and we give a new method for generating a low temperature expansion, which we test for the one-point function up to third order.

  20. Quantitative analysis of 2D and 3D models for epidermal growth factor receptor-dependent cell migration in the context of the extracellular microenvironment

    MIT - DSpace

    Kim, Hyung-Do, Ph. D. Massachusetts Institute of Technology

    2009-01-01

    Major therapeutic efforts have been devoted to targeting the epidermal growth factor receptor (EGFR), which is aberrantly expressed in many cancers and is correlated with tumor progression and invasiveness. In the current ...

  1. In vitro and in vivo growth factor delivery to chondrocytes and bone-marrow-derived stromal cells in cartilage and in self-assembling peptide scaffolds

    MIT - DSpace

    Miller, Rachel E. (Rachel Elizabeth)

    2010-01-01

    The inability of articular cartilage to repair itself after acute injury has been implicated in the development of osteoarthritis. The objective of this work was to develop methods for delivering growth factors to cartilage ...

  2. Insulin-like Growth Factor-I and Slow, Bi-directional Perfusion Enhance the Formation of Tissue-Engineered Cardiac Grafts

    MIT - DSpace

    Cheng, Mingyu

    Biochemical and mechanical signals enabling cardiac regeneration can be elucidated using in vitro tissue-engineering models. We hypothesized that insulin-like growth factor-I (IGF) and slow, bi-directional perfusion could ...

  3. Effect of Intravitreous Anti–Vascular Endothelial Growth Factor Therapy on Choroidal Thickness in Neovascular Age-Related Macular Degeneration Using Spectral-Domain Optical Coherence Tomography

    MIT - DSpace

    Branchini, Lauren

    A critical method of monitoring patients with neovascular age-related macular degeneration (AMD) being treated with anti–vascular endothelial growth factor (anti-VEGF) is optical coherence tomography (OCT), which uses ...

  4. Sustained epidermal growth factor receptor levels and activation by tethered ligand binding enhances osteogenic differentiation of multi-potent marrow stromal cells

    MIT - DSpace

    Platt, Manu O.

    Epidermal growth factor receptor (EGFR)-mediated signaling helps regulate bone development and healing through its effects on osteogenic cells. Here, we show how EGFR activity and osteogenic differentiation responses in ...

  5. Synergistic effects of tethered growth factors and adhesion ligands on DNA synthesis and function of primary hepatocytes cultured on soft synthetic hydrogels

    MIT - DSpace

    Mehta, Geeta

    The composition, presentation, and spatial orientation of extracellular matrix molecules and growth factors are key regulators of cell behavior. Here, we used self-assembling peptide nanofiber gels as a modular scaffold ...

  6. The matricellular protein connective tissue growth factor (CTGF/CCN2) is essential for angiogenesis and cartilage matrix secretion during development

    University of California eScholarship Repository

    Hall-Glenn, Faith Lauren

    2012-01-01

    modulation of smooth muscle cell growth and migration.muscle cells, in part through the modulation of platelet derived growthgrowth factor (PDGF) secretion by endothelial cells and subsequent PDGF/Akt-signaling in vascular smooth muscle

  7. Influence of environmental and climatic factors on the radial growth of European ash (Fraxinus excelsior L.) 1 The aim of the research was to evaluate the influence of various environmen-

    Environmental Sciences and Ecology Websites

    Influence of environmental and climatic factors on the radial growth of European ash (Fraxinus and the peculiarities of radial growth depend on different factors such as the lithological compo- sition of the soil climatic factors and the radial growth of ash, data on soil moisture fluctuations are necessary. The state

  8. Jump-Diffusion Risk-Sensitive Asset Management II: Jump-Diffusion Factor Model

    CERN Preprints

    Davis, Mark

    2011-01-01

    In this article we extend earlier work on the jump-diffusion risk-sensitive asset management problem [SIAM J. Fin. Math. (2011) 22-54] by allowing jumps in both the factor process and the asset prices, as well as stochastic volatility and investment constraints. In this case, the HJB equation is a partial integro-differential equation (PIDE). By combining viscosity solutions with a change of notation, a policy improvement argument and classical results on parabolic PDEs we prove that the HJB PIDE admits a unique smooth solution. A verification theorem concludes the resolution of this problem.

  9. Purified Plasma Membranes Inhibit Polypeptide Growth Factor-induced DNA Synthesis

    Biology and Medicine Websites

    Vale, Ronald D.

    Angeles, California 90024 ABSTRACT Plasma membranes derived from NR-6 cells, a varient line of Swiss mouse to these mitogenic factors. MATERIALS AND METHODS Cell Culture: Swiss mouse 3T3 cells (clone 42 from G. Todaro, Na-starved 3T3 cells were prepared in the following manner. Swiss 3T3 cells were plated in a 2-cm' Costar wells

  10. C/EBPb contributes to hepatocyte growth factor-induced replication of rodent hepatocytes

    Biology and Medicine Websites

    Ponder, Katherine P.

    ), which might be used for gene therapy or to promote liver regeneration. However, the biochemical steps critical for this process are not clear. C/EBPb and C/EBPa are liver-enriched transcription factors, and the effect upon C/EBPs was evaluated in liver extracts. Normal or C/EBPb-deficient mice were treated with HGF

  11. Micron-Scale Spatially Patterned, Covalently Immobilized Vascular Endothelial Growth Factor on Hydrogels

    Biology and Medicine Websites

    Chen, Christopher S.

    -patterned networks to allow transport of nutrients, oxygen, and waste throughout tissue, connecting arterial organized vascularized tissues. Introduction The natural process of angiogenesis relies on a com- plex of the tissue. Initiation of angiogenesis occurs through an endo- thelial cell response to signaling factors

  12. NEURON SURVIVAL, AXON GROWTH AND THE TRANSCRIPTION FACTOR SRY-BOX CONTAINING GENE 11 (SOX11)

    Biology and Medicine Websites

    Sibille, Etienne

    transcriptional targets, the level of Sox11 was assayed in the Neuro2A stem cell line (Klebe and Ruddle, 1969 that overexpress either NGF or GDNF in the skin (NGF-OE and GDNF-OE mice), the transcription factor Sox11)- induced differentiation of Neuro-2A cells and upon culturing DRG neurons, Sox11 mRNA NEURON SURVIVAL, AXON

  13. Low dose radiation interations with the transformation growth factor (TGF)-beta pathway 

    Texas A&M University - TxSpace

    Maslowski, Amy Jesse

    2009-05-15

    A major limiting factor for long-term, deep-space missions is the radiation dose to astronauts. Because the dose to the astronauts is a mixed field of low- and high-LET radiation, there is a need to understand the effects of both radiation types...

  14. Antiperiodic dynamical 6-vertex model by separation of variables II: Functional equations and form factors

    HEP - Theory (arXiv)

    D. Levy-Bencheton; G. Niccoli; V. Terras

    2015-07-13

    We pursue our study of the antiperiodic dynamical 6-vertex model using Sklyanin's separation of variables approach, allowing in the model new possible global shifts of the dynamical parameter. We show in particular that the spectrum and eigenstates of the antiperiodic transfer matrix are completely characterized by a system of discrete equations. We prove the existence of different reformulations of this characterization in terms of functional equations of Baxter's type. We notably consider the homogeneous functional $T$-$Q$ equation which is the continuous analog of the aforementioned discrete system and show, in the case of a model with an even number of sites, that the complete spectrum and eigenstates of the antiperiodic transfer matrix can equivalently be described in terms of a particular class of its $Q$-solutions, hence leading to a complete system of Bethe equations. Finally, we compute the form factors of local operators for which we obtain determinant representations in finite volume.

  15. Antiperiodic dynamical 6-vertex model by separation of variables II: Functional equations and form factors

    CERN Preprints

    Levy-Bencheton, D; Terras, V

    2015-01-01

    We pursue our study of the antiperiodic dynamical 6-vertex model using Sklyanin's separation of variables approach, allowing in the model new possible global shifts of the dynamical parameter. We show in particular that the spectrum and eigenstates of the antiperiodic transfer matrix are completely characterized by a system of discrete equations. We prove the existence of different reformulations of this characterization in terms of functional equations of Baxter's type. We notably consider the homogeneous functional $T$-$Q$ equation which is the continuous analog of the aforementioned discrete system and show, in the case of a model with an even number of sites, that the complete spectrum and eigenstates of the antiperiodic transfer matrix can equivalently be described in terms of a particular class of its $Q$-solutions, hence leading to a complete system of Bethe equations. Finally, we compute the form factors of local operators for which we obtain determinant representations in finite volume.

  16. Relativistic Thermal Bremsstrahlung Gaunt Factor for the Intracluster Plasma. II. Analytic Fitting Formulae

    Astrophysics (arXiv)

    Naoki Itoh; Tsuyoshi Sakamoto; Shugo Kusano; Satoshi Nozawa; Yasuharu Kohyama

    2007-07-31

    We present accurate analytic fitting formulae which summarize the results of the recent calculation by Nozawa, Itoh and Kohyama on the relativistic thermal bremsstrahlung Gaunt factor for the intracluster plasma. The fitting is carried out for Z = 1 to 28, 6.0 < log T < 8.5, -4.0 < log (omega/kT) < 1.0, where Z is the charge number of the ion, T is the temperature, and omega is the angular frequency of the emitted photon. The present analytic fitting formulae will be useful for the analysis of the X-ray emission which comes from the intracluster plasma as well as the other X-ray sources.

  17. Fourier Theory on the Complex Plane II: Weak Convergence, Classification and Factorization of Singularities

    Mathematical Physics (arXiv)

    Jorge L. deLyra

    2015-05-03

    The convergence of DP Fourier series which are neither strongly convergent nor strongly divergent is discussed in terms of the Taylor series of the corresponding inner analytic functions. These are the cases in which the maximum disk of convergence of the Taylor series of the inner analytic function is the open unit disk. An essentially complete classification, in terms of the singularity structure of the corresponding inner analytic functions, of the modes of convergence of a large class of DP Fourier series, is established. Given a weakly convergent Fourier series of a DP real function, it is shown how to generate from it other expressions involving trigonometric series, that converge to that same function, but with much better convergence characteristics. This is done by a procedure of factoring out the singularities of the corresponding inner analytic function, and works even for divergent Fourier series. This can be interpreted as a resummation technique, which is firmly anchored by the underlying analytic structure.

  18. Direct Numerical Simulation of Reionization II: Recombinations, Clumping Factors, and the Photon Budget for Reionization

    CERN Preprints

    So, Geoffrey C; Reynolds, Daniel R; Harkness, Robert P

    2013-01-01

    In this first of several application papers, we investigate the mechanics of reionization from stellar sources in high-z galaxies, the utility of various clumping factors on estimating the recombination time in the IGM, and the photon budget required to achieve reionization. We test the accuracy of the static and time-dependent models of Madau et al. as predictors of reionization completion/maintenance. We simulate a WMAP7 LCDM cosmological model in a 20 Mpc comoving cube with 800^3 uniform fluid cells and dark matter particles. By tuning our star formation to approximately match the observed star formation rate density and luminosity function, we created a fully coupled radiation-hydro realization of H reionization which begins to ionize at z~10 and completes at z~5.8. We find that roughly 2 ionizing photons per H atom are required to convert the neutral IGM to a highly ionized state, which supports the "photon starved" scenario discussed by Bolton & Haehnelt. The events during reionization that lead to ...

  19. Influence of Cell Size and DNA Content on Growth Rate and Photosystem II Function in Cryptic Species of

    Mathematics Websites

    Irwin, Andrew J.

    generations of asexual reproduction. We quantified the growth rate, the functional absorption cross unrestricted use, distribution, and reproduction in any medium, provided the original author and source

  20. The Functions of Myosin II and Myosin V Homologs in Tip Growth and Septation in Aspergillus nidulans

    University of Kansas - KU ScholarWorks

    Taheri-Talesh, Naimeh; Xiong, Yi; Oakley, Berl R.

    2012-02-16

    Because of the industrial and medical importance of members of the fungal genus Aspergillus, there is considerable interest in the functions of cytoskeletal components in growth and secretion in these organisms. We have ...

  1. Actin depolymerizing factor is essential for viability in plants, and its phosphoregulation is important for tip growth

    Biology and Medicine Websites

    Bezanilla, Magdalena

    is important for tip growth Robert C. Augustine1 , Luis Vidali1 , Ken P. Kleinman2 and Magdalena Bezanilla1,* 1)/cofilin is important for regulating actin dynamics, and in plants is thought to be required for tip growth. However and actin is important for tip growth. Keywords: ADF, cofilin, tip growth, phosphorylation, Physcomitrella

  2. Streit, A. and Stern, C.D. (1997). Competence for neural induction: HGF/SF, HGFl/MSP and their receptors c-met and Ron. In: Plasminogen-related growth factors. Ciba Fdn. Symp. 212,

    Biology and Medicine Websites

    Stern, Claudio

    1997-01-01

    /MSP and their receptors c-met and Ron. In: Plasminogen-related growth factors. Ciba Fdn. Symp. 212, 155-168. #12;Streit, A. In: Plasminogen-related growth factors. Ciba Fdn. Symp. 212, 155-168. #12;Streit, A. and Stern, C: Plasminogen-related growth factors. Ciba Fdn. Symp. 212, 155-168. #12;Streit, A. and Stern, C.D. (1997

  3. J. Phys. I France 7 (1997) 635650 APRIL 1997, PAGE 635 Scaling Behavior in Economics: II. Modeling of Company Growth

    Physics Websites

    Stanley, H. Eugene

    1997-01-01

    of Company Growth Sergey V. Buldyrev (1 ), Lu´is A. Nunes Amaral (1,2 ), Shlomo Havlin (1,3 ), Heiko that the distribution is consistent with the exponential form found empirically. 1. Introduction The concept of scaling of interacting subunits behave. This concept was developed a quarter century ago by physicists interested

  4. Cultivating hepatocytes on printed arrays of HGF and BMP7 to characterize protective effects of these growth factors during in vitro alcohol injury

    Materials Science Websites

    Revzin, Alexander

    Keywords: Protein microarrays Micropatterned cocultures Hepatocytes Growth factor microarrays Liver injury. Importantly, GF microarrays could be used to investigate heterotypic interactions in the context of liver injury. To highlight this, stellate cells e nonparenchymal liver cells involved in fibrosis e were added

  5. c-Crk, a Substrate of the Insulin-like Growth Factor-1 Receptor Tyrosine Kinase, Functions as an Early Signal Mediator in the

    Biology and Medicine Websites

    Tian, Weidong

    that elevates cellular cAMP, and a ligand of the insulin-like growth factor-1 receptor. Previous studies have at a non-physiologically high concentration), dexamethasone (a glucocorticoid), and 1-methyl-3-isobutylxan- thine (MIX; a cAMP phosphodiesterase inhibitor that increases intracellular cAMP), 3T3-L1 preadipocytes

  6. Protein Kinase B/AKT 1 Plays a Pivotal Role in Insulin-like Growth Factor-1 Receptor Signaling Induced 3T3-L1

    Biology and Medicine Websites

    Tian, Weidong

    with inhibitors of phos- phatidylinositol 3-kinase, LY294002 or wortmannin, leads to the complete blockadeProtein Kinase B/AKT 1 Plays a Pivotal Role in Insulin-like Growth Factor-1 Receptor Signaling the phosphatidylinositol 3-kinase-protein ki- nase B/Akt signal cascade. In 3T3-L1 preadipocytes, pro- tein kinase B/Akt 1

  7. A Novel GSK-3 betaC/EBP alphamiR-122Insulin-Like Growth Factor 1 Receptor Regulatory Circuitry in

    Biology and Medicine Websites

    Zhuang, Shi-Mei

    A Novel GSK-3 beta­C/EBP alpha­miR-122­Insulin- Like Growth Factor 1 Receptor Regulatory Circuitry) tissues and cell lines, and aflatoxin B1 (AFB1)-transformed cells. We characterized the 25.3 to 24.8 kb) translation and sustained glycogen synthase kinase-3 beta (GSK-3b) activity. The activated GSK-3b not only

  8. Involvement of Domain II in Toxicity of Anthrax Lethal Factor*S Received for publication, August 9, 2004, and in revised form, September 23, 2004

    Biology and Medicine Websites

    antigen (PA),1 edema factor (EF), and lethal factor (LF). PA, by itself, is not toxic; it serves to translocate EF and LF to the cytosol (1­4). Two cell surface receptors for PA (anthrax toxin receptor or ANTXR) have re- cently been identified (5, 6). Following binding to ANTXR, PA is cleaved by cell surface

  9. Study of lung-metastasized prostate cancer cell line chemotaxis to epidermal growth factor with a BIOMEMS device

    Engineering Websites

    Chiao, Jung-Chih

    Study of lung-metastasized prostate cancer cell line chemotaxis to epidermal growth factorpp) doi:10.1088/2043-6262/3/3/035007 Study of lung-metastasized prostate cancer cell line chemotaxis of 10 µm. The device was placed on a culture dish and primed with growth media. Lung-metastasized cells

  10. Nonmitogenic survival-enhancing autocrine factors including cyclophilin A contribute to density-dependent mouse embryonic stem cell growth

    MIT - DSpace

    Mittal, Nikhil

    An improved understanding of the role of extracellular factors in controlling the embryonic stem cell (ESC) phenotype will aid the development of cell-based therapies. While the role of extracellular factors in controlling ...

  11. Migration and Growth of Protoplanetary Embryos II: Emergence of Proto-Gas-Giants Cores versus Super Earths' Progenitor

    CERN Preprints

    Liu, Beibei; Lin, Douglas N C; Aarseth, Sverre J

    2014-01-01

    Nearly $15-20%$ of solar type stars contain one or more gas giant planet. According to the core-accretion scenario, the acquisition of their gaseous envelope must be preceded by the formation of super-critical cores with masses ten times or larger than that of the Earth. It is natural to link the formation probability of gas giant planets with the supply of gas and solid in their natal disks. However, a much richer population of super Earths suggests that 1) there is no shortage of planetary building-block material, 2) gas giants' growth barrier is probably associated with whether they can merge into super-critical cores, and 3) super Earths are probably failed cores which did not attain sufficient mass to initiate efficient accretion of gas before it is severely depleted. Here we construct a model based on the hypothesis that protoplanetary embryos migrated extensively before they were assembled into bona fide planets. We construct a Hermite-Embryo code based on a unified viscous-irradiation disk model and a...

  12. Using soil sensing technology to examine interactions and controls between ectomycorrhizal growth and environmental factors on soil CO2 dynamics

    University of California eScholarship Repository

    Hasselquist, Niles J.; Vargas, Rodrigo; Allen, Michael F.

    2010-01-01

    growth Plant Soil (2010) 331:17–29 and therefore carbonPlant Soil (2010) 331:17–29 resolution tracing of photosynthate carboncarbon allocation between plant roots and EM fungi to improve our predictions of soil

  13. Vascular Endothelial Growth Factor (VEGF) and Platelet (PF-4) Factor 4 Inputs Modulate Human Microvascular Endothelial Signaling in a Three-Dimensional Matrix Migration Context

    MIT - DSpace

    Hang, Ta-Chun

    The process of angiogenesis is under complex regulation in adult organisms, particularly as it often occurs in an inflammatory post-wound environment. As such, there are many impacting factors that will regulate the ...

  14. Charged pion form factor between Q^2=0.60 and 2.45 GeV^2. II. Determination of, and results for, the pion form factor

    Nuclear Experiment (arXiv)

    G. M. Huber; H. P. Blok; T. Horn; E. J. Beise; D. Gaskell; D. J. Mack; V. Tadevosyan; J. Volmer; D. Abbott; K. Aniol; H. Anklin; C. Armstrong; J. Arrington; K. Assamagan; S. Avery; O. K. Baker; B. Barrett; C. Bochna; W. Boeglin; E. J. Brash; H. Breuer; C. C. Chang; N. Chant; M. E. Christy; J. Dunne; T. Eden; R. Ent; E. Gibson; R. Gilman; K. Gustafsson; W. Hinton; R. J. Holt; H. Jackson; S. Jin; M. K. Jones; C. E. Keppel; P. H. Kim; W. Kim; P. M. King; A. Klein; D. Koltenuk; V. Kovaltchouk; M. Kiang; J. Liu; G. J. Lolos; A. Lung; D. J. Margaziotis; P. Markowitz; A. Matsumura; D. McKee; D. Meekins; J. Mitchell; T. Miyoshi; H. Mkrtchyan; B. Mueller; G. Niculescu; I. Niculescu; Y. Okayasu; L. Pentchev; C. Perdrisat; D. Pitz; D. Potterveld; V. Punjabi; L. M. Qin; P. Reimer; J. Reinhold; J. Roche; P. G. Roos; A. Sarty; I. K. Shin; G. R. Smith; S. Stepanyan; L. G. Tang; V. Tvaskis; R. L. J. van der Meer; K. Vansyoc; D. Van Westrum; S. Vidakovic; W. Vulcan; G. Warren; S. A. Wood; C. Xu; C. Yan; W. -X. Zhao; X. Zheng; B. Zihlmann

    2008-09-18

    The charged pion form factor, Fpi(Q^2), is an important quantity which can be used to advance our knowledge of hadronic structure. However, the extraction of Fpi from data requires a model of the 1H(e,e'pi+)n reaction, and thus is inherently model dependent. Therefore, a detailed description of the extraction of the charged pion form factor from electroproduction data obtained recently at Jefferson Lab is presented, with particular focus given to the dominant uncertainties in this procedure. Results for Fpi are presented for Q^2=0.60-2.45 GeV^2. Above Q^2=1.5 GeV^2, the Fpi values are systematically below the monopole parameterization that describes the low Q^2 data used to determine the pion charge radius. The pion form factor can be calculated in a wide variety of theoretical approaches, and the experimental results are compared to a number of calculations. This comparison is helpful in understanding the role of soft versus hard contributions to hadronic structure in the intermediate Q^2 regime.

  15. Charged pion form factor between Q^2=0.60 and 2.45 GeV^2. II. Determination of, and results for, the pion form factor

    CERN Preprints

    Huber, G M; Horn, T; Beise, E J; Gaskell, D; Mack, D J; Tadevosyan, V; Volmer, J; Abbott, D; Aniol, K; Anklin, H; Armstrong, C; Arrington, J; Assamagan, K; Avery, S; Baker, O K; Barrett, B; Bochna, C; Boeglin, W; Brash, E J; Breuer, H; Chang, C C; Chant, N; Christy, M E; Dunne, J; Eden, T; Ent, R; Gibson, E; Gilman, R; Gustafsson, K; Hinton, W; Holt, R J; Jackson, H; Jin, S; Jones, M K; Keppel, C E; Kim, P H; Kim, W; King, P M; Klein, A; Koltenuk, D; Kovaltchouk, V; Kiang, M; Liu, J; Lolos, G J; Lung, A; Margaziotis, D J; Markowitz, P; Matsumura, A; McKee, D; Meekins, D; Mitchell, J; Miyoshi, T; Mkrtchyan, H; Müller, B; Niculescu, G; Niculescu, I; Okayasu, Y; Pentchev, L; Perdrisat, C; Pitz, D; Potterveld, D; Punjabi, V; Qin, L M; Reimer, P; Reinhold, J; Roche, J; Roos, P G; Sarty, A; Shin, I K; Smith, G R; Stepanyan, S; Tang, L G; Tvaskis, V; Van der Meer, R L J; Vansyoc, K; Van Westrum, D; Vidakovic, S; Vulcan, W; Warren, G; Wood, S A; Xu, C; Yan, C; Zhao, W -X; Zheng, X; Zihlmann, B

    2008-01-01

    The charged pion form factor, Fpi(Q^2), is an important quantity which can be used to advance our knowledge of hadronic structure. However, the extraction of Fpi from data requires a model of the 1H(e,e'pi+)n reaction, and thus is inherently model dependent. Therefore, a detailed description of the extraction of the charged pion form factor from electroproduction data obtained recently at Jefferson Lab is presented, with particular focus given to the dominant uncertainties in this procedure. Results for Fpi are presented for Q^2=0.60-2.45 GeV^2. Above Q^2=1.5 GeV^2, the Fpi values are systematically below the monopole parameterization that describes the low Q^2 data used to determine the pion charge radius. The pion form factor can be calculated in a wide variety of theoretical approaches, and the experimental results are compared to a number of calculations. This comparison is helpful in understanding the role of soft versus hard contributions to hadronic structure in the intermediate Q^2 regime.

  16. Stern, C.D. and Ireland, G.W. (1993) HGF/SF: a neural inducing molecule in vertebrate embryos? In: Hepatocyte Growth Factor -Scatter Factor (HGF-SF) and the c-MET receptor. (ed. I.D. Goldberg and E. Rosen) Basel: Birkhauser Verlag. pp. 369-380.

    Biology and Medicine Websites

    Stern, Claudio

    1993-01-01

    Stern, C.D. and Ireland, G.W. (1993) HGF/SF: a neural inducing molecule in vertebrate embryos? In inducing molecule in vertebrate embryos? In: Hepatocyte Growth Factor - Scatter Factor (HGF- SF) and the c.D. and Ireland, G.W. (1993) HGF/SF: a neural inducing molecule in vertebrate embryos? In: Hepatocyte Growth

  17. Properly Oriented Heparin-Decasaccharide-Induced Dimers Are the Biologically Active Form of Basic Fibroblast Growth Factor,

    Chemistry Websites

    Powers, Robert

    to cell growth and differentiation (Baird & Bohlen, 1990; Basilico & Moscatelli, 1992; Folkman & Klagsbrun-deficient cells and cell-free systems. The first 28 N-terminal residues in FGF-2 were found to be highly mobile with HSPG is required for binding to its cell surface tyrosine kinase receptor (FGFR) and is essential

  18. The mTOR-Regulated Phosphoproteome Reveals a Mechanism of mTORC1-Mediated Inhibition of Growth Factor Signaling

    MIT - DSpace

    Rameseder, J.

    The mammalian target of rapamycin (mTOR) protein kinase is a master growth promoter that nucleates two complexes, mTORC1 and mTORC2. Despite the diverse processes controlled by mTOR, few substrates are known. We defined ...

  19. Calculable Corrections to Brane Black Hole Decay II: Greybody Factors for Spin 1/2 and 1

    General Relativity & Quantum Cosmology (arXiv)

    Panagiota Kanti; John March-Russell

    2003-03-27

    The production of black holes in extra-dimensional brane-world theories can lead to detectable signals via the Hawking evaporation of the black hole to brane-localised Standard Model modes. We calculate, as a function of partial wave number and number of toroidally compactified extra dimensions, the leading correction to the energy spectrum of such Hawking radiation (the greybody factors) for decay into spin 1/2 fermions and spin 1 gauge fields localised on the Standard Model brane. We derive the associated improved differential emission rates for both types of fields. We provide both simple expressions for the leading behavior of the greybody factors in the low-energy limit $\\om r_H \\ll 1$, and numerical evaluation of our full analytic expressions for the emission rates, valid for $\\om r_H \\sim 1$. The full analytic expressions demonstrate that both the greybody factors and emission rates are enhanced as the number of extra dimensions increases.

  20. Form-factors in the Baxter-Bazhanov-Stroganov model II: Ising model on the finite lattice

    CERN Preprints

    Von Gehlen, G; Pakuliak, S; Shadura, V; Tykhyy, Yu

    2007-01-01

    We continue our investigation of the Baxter-Bazhanov-Stroganov or \\tau^{(2)}-model using the method of separation of variables [nlin/0603028,arXiv:0708.4342]. In this paper we derive for the first time the factorized formula for form-factors of the Ising model on a finite lattice conjectured previously by A.Bugrij and O.Lisovyy in [arXiv:0708.3625,arXiv:0708.3643]. We also find the matrix elements of the spin operator for the finite quantum Ising chain in a transverse field.

  1. Form-factors in the Baxter-Bazhanov-Stroganov model II: Ising model on the finite lattice

    Mathematical Physics (arXiv)

    G. von Gehlen; N. Iorgov; S. Pakuliak; V. Shadura; Yu. Tykhyy

    2008-04-14

    We continue our investigation of the Baxter-Bazhanov-Stroganov or \\tau^{(2)}-model using the method of separation of variables [nlin/0603028,arXiv:0708.4342]. In this paper we derive for the first time the factorized formula for form-factors of the Ising model on a finite lattice conjectured previously by A.Bugrij and O.Lisovyy in [arXiv:0708.3625,arXiv:0708.3643]. We also find the matrix elements of the spin operator for the finite quantum Ising chain in a transverse field.

  2. On the Assumption of Initial Factorization in the Master Equation for Weakly Coupled Systems II: Solvable Models

    Quantum Physics (arXiv)

    K. Yuasa; S. Tasaki; P. Facchi; G. Kimura; H. Nakazato; I. Ohba; S. Pascazio

    2006-08-17

    We analyze some solvable models of a quantum mechanical system in interaction with a reservoir when the initial state is not factorized. We apply Nakajima-Zwanzig's projection method by choosing a reference state of the reservoir endowed with the mixing property. In van Hove's limit, the dynamics is described in terms of a master equation. We observe that Markovianity becomes a valid approximation for timescales that depend both on the form factors of the interaction and on the observables of the reservoir that can be measured.

  3. ATP Utilization by Yeast Replication Factor C II. MULTIPLE STEPWISE ATP BINDING EVENTS ARE REQUIRED TO LOAD PROLIFERATING CELL

    Biology and Medicine Websites

    Burgers, Peter M.

    - tional ATP (PCNA RFC ATP3); (iii) this complex can bind DNA to yield DNA PCNA RFC ATP3; (iv) a conforma, as a processivity factor for DNA polymerase (11, 12) (Scheme I). Because RFC can form distinct ATP TO LOAD PROLIFERATING CELL NUCLEAR ANTIGEN ONTO PRIMED DNA* Received for publication, December 27, 2000

  4. In vitro model of injury/cytokine-induced cartilage catabolism modulated by dynamic compression, growth factors, and glucocorticoids

    MIT - DSpace

    Li, Yang, Ph. D. Massachusetts Institute of Technology

    2013-01-01

    The degradation of articular cartilage is the hallmark in the pathogenesis of osteoarthritis (OA). It still remains largely unknown which precise mechanisms initiate cartilage degradation. However, risks factors include ...

  5. Use of growth factors and adhesive ligands to promote connective tissue progenitor colony formation from fresh marrow

    MIT - DSpace

    Marcantonio, Nicholas A. (Nicholas Alexander)

    2008-01-01

    The current gold standard for bone graft material is autologous bone, which provides mechanical support, possesses factors that promote bone formation, and contains connective tissue progenitors (CTPs), a heterogeneous ...

  6. Supersymmetry and the Atiyah-Singer Index Theorem II: The Scalar Curvature Factor in the Schr{\\" o}dinger Equation

    HEP - Theory (arXiv)

    Ali Mostafazadeh

    1993-09-10

    The quantization of the superclassical system used in the proof of the index theorem results in a factor of $\\hbar^{2}R/8 $ in the Hamiltonian. The path integral expression of the kernel is analyzed up to and including 2-loop order. The existence of the scalar curvature term is confirmed by comparing the linear term in the heat kernel expansion with the 2-loop order terms in the loop expansion.

  7. Factorization of non-linear supersymmetry in one-dimensional Quantum Mechanics. II: proofs of theorems on reducibility

    Quantum Physics (arXiv)

    A. V. Sokolov

    2009-03-16

    In this paper, we continue to study factorization of supersymmetric (SUSY) transformations in one-dimensional Quantum Mechanics into chains of elementary Darboux transformations with nonsingular coefficients. We define the class of potentials that are invariant under the Darboux - Crum transformations and prove a number of lemmas and theorems substantiating the formulated formerly conjectures on reducibility of differential operators for spectral equivalence transformations. Analysis of the general case is performed with all the necessary proofs.

  8. Spherical Hartree-Fock calculations with linear momentum projection before the variation.Part II: Spectral functions and spectroscopic factors

    Nuclear Theory (arXiv)

    R. R. Rodríguez--Guzmán; K. W. Schmid

    2005-04-28

    The hole--spectral functions and from these the spectroscopic factors have been calculated in an Galilei--invariant way for the ground state wave functions resulting from spherical Hartree--Fock calculations with projection onto zero total linear momentum before the variation for the nuclei 4He, 12C, 16O, 28Si, 32S and 40Ca. The results are compared to those of the conventional approach which uses the ground states resulting from usual spherical Hartree--Fock calculations subtracting the kinetic energy of the center of mass motion before the variation and to the results obtained analytically with oscillator occupations.

  9. LIGHT LEVEL AS A POTENTIAL LIMITING FACTOR IN THE GROWTH OF ZOSTERA MARINA EELGRASS IN THE PACIFIC NORTHWEST

    Environmental Sciences and Ecology Websites

    Cowles, David L.

    of the requirements for the degree of MASTER OF SCIENCE 28 May 2015 #12;#12;ABSTRACT Eelgrasses serve as important.........................................................................1 Light intensity and Photosynthesis-Irradiance (P-I) Curves ......................4 Factors A recent P-I Curve determined for Z. marina in the Pacific Northwest....16 MATERIALS AND METHODS

  10. Regulation of Wilms' tumor gene expression by nerve growth factor and follicle-stimulating hormone in the

    Biology and Medicine Websites

    Mayo, Kelly E.

    in the immature mouse ovary This study investigated the regulation of Wilms' tumor gene (WT1) in the ovary follicular development. However, the regula- tory factor of WT1 in the developing ovary is not clear. Nerve) and the inverse relationship of FSH receptor and WT1 mRNA levels in the developing rat ovary (2) suggest

  11. Prompt charmonia production and polarization at LHC in the NRQCD with kt-factorization. Part II: $?_c$ mesons

    HEP - Phenomenology (arXiv)

    S. P. Baranov; A. V. Lipatov; N. P. Zotov

    2015-10-08

    In the framework of kt-factorization approach,the production of prompt $\\chi_c$ mesons in pp collisions at the LHC energies is studied. Our consideration is based on the off-shell amplitudes for hard partonic subprocesses $g^*g^*\\to\\chi_{cJ}$ and non-relativistic QCD formalism for bound states. The transverse momentum dependent (unintegrated) gluon densities in a proton were derived from Ciafaloni-Catani-Fiorani-Marchesini evolution equation or, alternatively, were chosen in accordance with Kimber-Martin-Ryskin prescription. Taking into account both color singlet and color octet contributions, we deduce the corresponding non-perturbative long-distance matrix elements from the fits to the latest ATLAS data on $\\chi_{c1}$ and $\\chi_{c2}$ transverse momentum distributions at $\\sqrt s = 7$ TeV. We find that these distributions at small and moderate pt are formed mainly by the color singlet components. We successfully described the data on the differential cross sections and relative production rates $\\sigma(\\chi_{c2})/\\sigma(\\chi_{c1})$ presented by the ATLAS, CMS and LHCb Collaborations. We find that the fit points to unequal wave functions of $\\chi_{c1}$ and $\\chi_{c2}$ states.

  12. Prompt charmonia production and polarization at LHC in the NRQCD with kt-factorization. Part II: $\\chi_c$ mesons

    CERN Preprints

    Baranov, S P; Zotov, N P

    2015-01-01

    In the framework of kt-factorization approach,the production of prompt $\\chi_c$ mesons in pp collisions at the LHC energies is studied. Our consideration is based on the off-shell amplitudes for hard partonic subprocesses $g^*g^*\\to\\chi_{cJ}$ and non-relativistic QCD formalism for bound states. The transverse momentum dependent (unintegrated) gluon densities in a proton were derived from Ciafaloni-Catani-Fiorani-Marchesini evolution equation or, alternatively, were chosen in accordance with Kimber-Martin-Ryskin prescription. Taking into account both color singlet and color octet contributions, we deduce the corresponding non-perturbative long-distance matrix elements from the fits to the latest ATLAS data on $\\chi_{c1}$ and $\\chi_{c2}$ transverse momentum distributions at $\\sqrt s = 7$ TeV. We find that these distributions at small and moderate pt are formed mainly by the color singlet components. We successfully described the data on the differential cross sections and relative production rates $\\sigma(\\chi_...

  13. Partner orbits and action differences on compact factors of the hyperbolic plane. II: Higher-order encounters

    Mathematical Physics (arXiv)

    Hien Minh Huynh

    2015-03-06

    Physicists have argued that periodic orbit bunching leads to universal spectral fluctuations for chaotic quantum systems. To establish a more detailed mathematical understanding of this fact, it is first necessary to look more closely at the classical side of the problem and determine orbit pairs consisting of orbits which have similar actions. We specialize to the geodesic flow on compact factors of the hyperbolic plane as a classical chaotic system. The companion paper [14] proved the existence of a unique periodic partner orbit for a given periodic orbit with a small-angle self-crossing in configuration space that is a 2-encounter and derived an estimate for the action difference of the orbit pair. In this paper, we provide an inductive argument to deal with higher-order encounters: we prove that a given periodic orbit including an $L$-parallel encounter has $(L-1)!-1$ partner orbits; we construct partner orbits and give estimates for the action differences between orbit pairs.

  14. Large-scale growth evolution in the Szekeres inhomogeneous cosmological models with comparison to growth data

    General Relativity & Quantum Cosmology (arXiv)

    Austin Peel; Mustapha Ishak; M. A. Troxel

    2012-12-11

    We use the Szekeres inhomogeneous cosmological models to study the growth of large-scale structure in the universe including nonzero spatial curvature and a cosmological constant. In particular, we use the Goode and Wainwright formulation, as in this form the models can be considered to represent exact nonlinear perturbations of an averaged background. We identify a density contrast in both classes I and II of the models, for which we derive growth evolution equations. By including Lambda, the time evolution of the density contrast as well as kinematic quantities can be tracked through the matter- and Lambda-dominated cosmic eras up to the present and into the future. In various models of class I and class II, the growth rate is found to be stronger than that of the LCDM cosmology, and it is suppressed at later times due to the presence of Lambda. We find that there are Szekeres models able to provide a growth history similar to that of LCDM while requiring less matter content and nonzero curvature, which speaks to the importance of including the effects of large-scale inhomogeneities in analyzing the growth of large-scale structure. Using data for the growth factor f from redshift space distortions and the Lyman-alpha forest, we obtain best fit parameters for class II models and compare their ability to match observations with LCDM. We find that there is negligible difference between best fit Szekeres models with no priors and those for LCDM, both including and excluding Lyman-alpha data. We also find that the growth index gamma parametrization cannot be applied in a simple way to the growth in Szekeres models, so a direct comparison of the function f to the data is performed. We conclude that the Szekeres models can provide an exact framework for the analysis of large-scale growth data that includes inhomogeneities and allows for different interpretations of observations. (abridged)

  15. Exchange Driven Growth

    Condensed Matter (arXiv)

    E. Ben-Naim; P. L. Krapivsky

    2003-05-08

    We study a class of growth processes in which clusters evolve via exchange of particles. We show that depending on the rate of exchange there are three possibilities: I) Growth: Clusters grow indefinitely; II) Gelation: All mass is transformed into an infinite gel in a finite time; and III) Instant Gelation. In regimes I and II, the cluster size distribution attains a self-similar form. The large size tail of the scaling distribution is Phi(x) ~ exp(-x^{2-\

  16. Journal of Crystal Growth 287 (2006) 615619 Characteristics of InGaAsN-GaAsSb type-II ``W'' quantum wells

    Materials Science Websites

    Gilchrist, James F.

    2006-01-01

    chemical vapor deposition (MOCVD). Photoluminescence and X-ray diffraction measurements indicate that thin. In this work, we focus on the metalorganic chemical vapor deposition (MOCVD) growth and characterization

  17. Water ice growth around evolved stars

    CERN Preprints

    Dijkstra, C; Hoogzaad, S N; De Koter, A; Min, M

    2003-01-01

    We present a model of the growth of water ice on silicate grains in the circumstellar envelopes of Asymptotic Giant Branch (AGB) stars and Red Super Giants. We consider the growth of ice by gas grain collisions, the thermal evaporation of ice from a grain, and sputtering. Our model contains several improvements compared to earlier models, including a detailed treatment of the effects of sputtering, a detailed calculation of the radiation pressure on the grain, and the treatment of subsonic drift velocities. In terms of drift velocity between the grains and gas in the envelope, we find that the ice formation process can be divided into three regimes: (i) a sputtering dominated regime where ice growth is heavily suppressed, (ii) an intermediate regime with moderately efficient condensation and (iii) a thermally dominated regime where ice formation is highly efficient. Sputtering is the critical factor which determines if ice formation can occur at all. We find that in Red Supergiants, ice formation is suppresse...

  18. Molecular beam epitaxy growth and characterization of broken-gap ,,type II... superlattices and quantum wells for midwave-infrared laser diodes

    Physics Websites

    Flatte, Michael E.

    and quantum wells for midwave-infrared laser diodes T. C. Hasenberga) Department of Physics and Astronomy, 144 developed a broken-gap type II quantum well active region for midwave infrared interband lasers which including trace gas sensing and military countermea- sures, as well as medical applications

  19. Kinetic model of II-VI(001) semiconductor surfaces: Growth rates in atomic layer epitaxy T. Volkmann, M. Ahr, and M. Biehl

    Computer Technologies and Information Sciences Websites

    Biehl, Michael

    28, 2003) We present a zinc-blende lattice gas model of II-VI(001) surfaces, which is investigated features of CdTe. The correct zinc-blende lattice was first considered in Ref. 16, but here we extend

  20. J. Phys. I Fance 7 (1997) 635-650 APRIL 199( PAGE 635 Scaling Behavior in Economics: II. Modeling of Company Growth

    Physics Websites

    Buldyrev, Sergey

    1997-01-01

    . Introduction The concept of scaling supports much of our current conceptualization on the general subject of how complex systems formed of interacting subunits behave. This concept was developed a quarter paper [ii we presented empirical results suggesting that the scaling concept can be useful in describing

  1. Regulation of insulin-like growth factor binding protein-4 in Ah responsive and Ah nonresponsive human breast cancer cells by 17 B-estradiol and 2,3,7,8 tetrachlorodibenzo-p-dioxin 

    Texas A&M University - TxSpace

    Schrope, Katherine Eillene

    1997-01-01

    This study focused on the effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) on insulin-like growth factor binding protein-4 (IGFBP-4) protein secretion and MRNA expression. In human breast cancer cells, 17 O-estradiol (E2) induced IGFBP-4...

  2. Compilation of Diversity Factors and Schedules for Energy and Cooling Load Calculations, Phase II Report - Identified Relevant Data Sets, Methods, and Variability Analysis 

    Texas A&M University - TxSpace

    Abushakra, B.; Haberl, J. S.; Claridge, D. E.

    1999-01-01

    This is the second report of the ASHRAE 1093-RP project that reports on the progress during the scheduled Phase II effort. In this report, we present: (1) the data sets identified and acquired required for the analysis; (2) the method adopted...

  3. Lycopene Enhances Docetaxel's Effect in Castration-Resistant Prostate Cancer Associated with Insulin-like Growth Factor I Receptor Levels1

    University of California eScholarship Repository

    2011-01-01

    vitamin E interfere with autocrine/paracrine loops in the Dunning prostate cancervitamin E and selenium did not effectively inhibit prostate cancervitamin E treatment suppresses the growth of PC-346C human prostate cancer

  4. Factors influencing the growth, recruitment success, and distribution of Farfantepenaeus aztecus (Crustacea:Penaeidae) in high and low salinity salt marshes 

    Texas A&M University - TxSpace

    Aubele, Michael Charles

    2001-01-01

    Densities of brown shrimp (Farfantepenaeus aztecus) were compared between high and low salinity salt marshes in Galveston Bay, Texas. Growth rates within the high salinity study area (West Bay) were estimated during the peak immigration period...

  5. Multiwavelength study of massive galaxies at z~2. II. Widespread Compton thick AGN and the concurrent growth of black holes and bulges

    Astrophysics (arXiv)

    E. Daddi; D. M. Alexander; M. Dickinson; R. Gilli; A. Renzini; D. Elbaz; A. Cimatti; R. Chary; D. Frayer; F. E. Bauer; W. N. Brandt; M. Giavalisco; N. A. Grogin; M. Huynh; J. Kurk; M. Mignoli; G. Morrison; A. Pope; S. Ravindranath

    2007-07-24

    Approximately 20-30% of 1.46.2 keV. The stacked X-ray spectrum rises steeply at >10 keV, suggesting that these sources host Compton-thick Active Galactic Nuclei (AGNs) with column densities N_H~10^{24} cm^-2 and an average, unobscured X-ray luminosity L_{2-8 keV}~(1-4)x10^43 erg/s. Their sky density(~3200 deg^-2) and space density (~2.6x10^-4 Mpc^-3) are twice those of X-ray detected AGNs at z~2, and much larger than those of previously-known Compton thick sources at similar redshifts. The mid-IR excess galaxies are part of the long sought-after population of distant heavily obscured AGNs predicted by synthesis models of the X-ray background. The fraction of mid-IR excess objects increases with galaxy mass, reaching ~50-60% for M~10^11 M_sun, an effect likely connected with downsizing in galaxy formation. The ratio of theinferred black hole growth rate from these Compton-thick sources to the global star formation rate at z=2 is similar to the mass ratio of black holes to stars inlocal spheroids, implying concurrent growth of both within the precursors oftoday's massive galaxies.

  6. Laplacian Growth II: Saffman - Taylor Problem Without Surface Tension in Filtration Combustion: Formation of One Finger with Half of the Channel Width

    Nonlinear Sciences (arXiv)

    Oleg Kupervasser

    2014-05-22

    Filtration combustion is described by Laplacian growth without surface tension. These equations have elegant analytical solutions that replace the complex integro-differential motion equations by simple differential equations of pole motion in a complex plane. The main problem with such a solution is the existence of finite time singularities. To prevent such singularities, nonzero surface tension is usually used.However, nonzero surface tension does not exist in filtration combustion, and this destroys the analytical solutions. However, a more elegant approach exists for solving the problem. First, we can introduce a small amount of pole noise to the system. Second, for regularisation of the problem, we throw out all new poles that can produce a finite time singularity. It can be strictly proved that the asymptotic solution for such a system is a single finger. Moreover, the qualitative consideration demonstrates that a finger with 1/2 of the channel width is statistically stable. Therefore, all properties of such a solution are exactly the same as those of the solution with nonzero surface tension under numerical noise. The solution of the ST problem without surface tension is similar to the solution for the equation of cellular flames in the case of the combustion of gas mixtures.

  7. Multiwavelength study of massive galaxies at z~2. II. Widespread Compton thick AGN and the concurrent growth of black holes and bulges

    CERN Preprints

    Daddi, E; Dickinson, M; Gilli, R; Renzini, A; Elbaz, D; Cimatti, A; Chary, R; Frayer, D; Bauer, F E; Brandt, W N; Giavalisco, M; Grogin, N A; Huynh, M; Kurk, J; Mignoli, M; Morrison, G; Pope, A; Ravindranath, S

    2007-01-01

    We investigate a population of z~2 galaxies that shows a distinct mid-IR (24um) excess flux over what expected from the SFR at radio, UV, 70um, soft X-ray, and submm wavelengths in GOODS. These mid-IR excess galaxies, represent ~20-30% of all z~2 star forming galaxies to K10 keV, suggesting that these sources host AGNs obscured by Compton-thick absorption with column densities N_H>10^{24}/cm^2. Their unobscured X-ray luminosity is estimated to be L_{2-8 keV}~(1-4)x10^{43}erg/s. Their sky density (~3200/deg^2) and space density (~2.6x10^-4/Mpc^3) are twice those of individually X-ray detected AGNs at z~2, and much larger than those of previously known Compton thick sources at high-z. These objects are part of the long sought-after population of distant heavily obscured AGNs predicted by models of the X-ray background. The ratio of their BH growth rate density to the ongoing SFR density in the full z=2 galaxy population is similar to the ratio of BH to stellar mass in local spheroids. We are likely witnessing t...

  8. Effects of a low-fat, high-fiber diet and exercise program on breast cancer risk factors in vivo and tumor cell growth and apoptosis in vitro

    University of California eScholarship Repository

    Barnard, R James; Gonzalez, J H; Liva, M E; Ngo, T H

    2006-01-01

    observed were in risk The overweight/obese. reductions thesein risk factors for BCa while subjects remained overweight/risk factorsincludingestradiol, reduces women'Se- postnenopausal andIGF-I in overweight/

  9. eta and eta' in a coupled Schwinger-Dyson and Bethe-Salpeter approach. II. The gamma^* gamma transition form factors

    Nuclear Theory (arXiv)

    Dalibor Kekez; Dubravko Klabucar

    2002-04-11

    The applications of the consistently coupled Schwinger-Dyson and Bethe-Salpeter approach to the eta-eta' complex are extended to the two-photon transition form factors of eta and eta' for spacelike transferred momenta. We compare our predictions with experiment and some other theoretical approaches.

  10. Mathematics II Mathematics II Plan

    Mathematics Websites

    Johanis, Michal

    Functions of several variables Matrix calculus Series Integrals Mathematics II Plan #12;V.1. Rn as a linear and metric space V.1. Rn as a linear and metric space Mathematics II V. Functions of several variables #12;V}. Mathematics II V. Functions of several variables #12;V.1. Rn as a linear and metric space V.1. Rn as a linear

  11. Form factors in the massless coset models su(2)_k+1 \\otimes su(2)_k /su(2)_2k+1 - Part II

    Mathematical Physics (arXiv)

    P. Grinza; B. Ponsot

    2005-04-11

    Massless flows from the coset model su(2)_k+1 \\otimes su(2)_k /su(2)_2k+1 to the minimal model M_k+2 are studied from the viewpoint of form factors. These flows include in particular the flow from the Tricritical Ising model to the Ising model. By analogy with the magnetization operator in the flow TIM -> IM, we construct all form factors of an operator that flows to \\Phi_1,2 in the IR. We make a numerical estimation of the difference of conformal weights between the UV and the IR thanks to the \\Delta-sum rule; the results are consistent with the conformal weight of the operator \\Phi_2,2 in the UV. By analogy with the energy operator in the flow TIM -> IM, we construct all form factors of an operator that flows to \\Phi_2,1. We propose to identify the operator in the UV with \\sigma_1\\Phi_1,2.

  12. Bone-metastatic potential of human prostate cancer cells correlates with Akt/PKB activation by a platelet-derived growth factor receptor

    Biology and Medicine Websites

    Meucci, Olimpia

    Bone-metastatic potential of human prostate cancer cells correlates with Akt/PKB activation be the ability of bone- produced factors to specifically select disseminated prostate cancer cells pathway in bone-metastatic prostate cancer cells compared to nonmetastatic cells. Normal prostate

  13. Path representation of su(2)_k states II: Operator construction of the fermionic character and spin-1/2--RSOS factorization

    HEP - Theory (arXiv)

    Joël Lamy-Poirier; Pierre Mathieu

    2010-12-21

    This is the second of two articles (independent of each other) devoted to the analysis of the path description of the states in su(2)_k WZW models. Here we present a constructive derivation of the fermionic character at level k based on these paths. The starting point is the expression of a path in terms of a sequence of nonlocal (formal) operators acting on the vacuum ground-state path. Within this framework, the key step is the construction of the level-k operator sequences out of those at level-1 by the action of a new type of operators. These actions of operators on operators turn out to have a path interpretation: these paths are precisely the finitized RSOS paths related to the unitary minimal models M(k+1,k+2). We thus unravel -- at the level of the path representation of the states --, a direct factorization into a k=1 spinon part times a RSOS factor. It is also pointed out that since there are two fermionic forms describing these finite RSOS paths, the resulting fermionic su(2)_k characters arise in two versions. Finally, the relation between the present construction and the Nagoya spectral decomposition of the path space is sketched.

  14. On the von Neumann Economic Growth Problem Yinyu YE \\Lambda

    Computer Technologies and Information Sciences Websites

    Ye, Yinyu

    of inputs consumed, during one time period. Then, fl represents the growth factor at intensity y. So By â?? fl required in period (t + 1) with the growth factor fl. The NEG problem is to find the largest growth factorOn the von Neumann Economic Growth Problem Yinyu YE \\Lambda Department of Management Sciences

  15. Measurement of Lande g factor of 5D5/2 state of BaII with a single trapped ion

    CERN Preprints

    Kurz, N; Shu, Gang; Noel, T; Blinov, B B

    2010-01-01

    We present the first terrestrial measurement of the Lande g factor of the 5D5/2 state of singly ionized barium. Measurements were performed on single Doppler-cooled 138Ba+ ions in a linear Paul trap. A frequency-stabilized fiber laser with nominal wavelength 1.762 um was scanned across the 6S1/25D5/2 transition to spectroscopically resolve transitions between Zeeman sublevels of the ground and excited states. From the relative positions of the four narrow transitions observed at several different values for the applied magnetic field, we find a value of 1.2020+/-0.000 for g of 5D5/2.

  16. Information externality, bank structure, and growth 

    Texas A&M University - TxSpace

    Doh, Bo-Eun

    2004-09-30

    , it examines factors that contribute to the promotion of economic growth that come from a concentrated banking system. There is substantial evidence of a positive relationship between financial markets development and long term output growth. Little is known...

  17. Water ice growth around evolved stars

    Astrophysics (arXiv)

    C. Dijkstra; C. Dominik; S. N. Hoogzaad; A. de Koter; M. Min

    2003-01-29

    We present a model of the growth of water ice on silicate grains in the circumstellar envelopes of Asymptotic Giant Branch (AGB) stars and Red Super Giants. We consider the growth of ice by gas grain collisions, the thermal evaporation of ice from a grain, and sputtering. Our model contains several improvements compared to earlier models, including a detailed treatment of the effects of sputtering, a detailed calculation of the radiation pressure on the grain, and the treatment of subsonic drift velocities. In terms of drift velocity between the grains and gas in the envelope, we find that the ice formation process can be divided into three regimes: (i) a sputtering dominated regime where ice growth is heavily suppressed, (ii) an intermediate regime with moderately efficient condensation and (iii) a thermally dominated regime where ice formation is highly efficient. Sputtering is the critical factor which determines if ice formation can occur at all. We find that in Red Supergiants, ice formation is suppressed, while the winds of OH/IR stars allow for efficient condensation and can convert significant fractions of the available water vapor (tens of percent) into ice mantles on grains. Population II AGB stars hardly form ice due to their low dust to gas ratios. We also modify an analytical equation describing condensation and depletion (Jura and Morris, 1985) in order to give reasonable results for high and low drift velocities. Initially, ice will condense in crystalline form, but continuing condensation at low temperatures, and damage caused by interstellar UV photons favor the production of amorphous ice as well. We predict that a significant fraction of the ice formed will be amorphous.

  18. Quasar Spectrum Classification with PCA - II: Introduction of Five Classes, Artificial Quasar Spectrum, the Mean Flux Correction Factor dF,and the Identification of Emission Lines in the Ly alpha Forest

    Astrophysics (arXiv)

    Nao Suzuki

    2005-03-10

    We investigate the variety in quasar UV spectra (1020-1600A) with emphasis on the weak emission lines in the Ly alpha forest region using principal component analysis (PCA). This paper is a continuation of Suzuki et al. (2005, Paper I), but with a different approach. We use 50 smooth continuum fitted quasar spectra (0.14 < z < 1.04) taken by the Hubble Space Telescope (HST) Faint Object Spectrograph. Three weak emission lines in the Ly alpha forest are identified as FeII 1070.95A, FeII+FeIII 1123.17A, and CIII* 1175.88A. Using first two standardized PCS coefficients, we introduce five classifications: Class Zero and Class I-IV. These classifications will guide us in finding the continuum level in the Ly alpha forest, and we discuss the characteristics of each class. We show weak emission lines in the Ly alpha forest become eminent for Class III and IV. By actively using PCS, we can generate artificial quasar spectra which are useful to test the detection of quasars, DLAs, and the continuum calibration. We provide 10,000 artificially generated spectra. We show that the power-law extrapolated continuum is inadequate to perform precise measurements of the mean flux in the Ly alpha forest because of the weak emission lines and the extended tails of Ly alpha and Ly beta/OVI emission lines. We introduce a correction factor dF such that the true mean flux can be related to that is measured by using power-law continuum extrapolation: = dF. The correction factor dF ranges from 0.84 to 1.05 with a mean of 0.947 and a standard deviation of 0.031 for our 50 quasars. This result means that we miss 5.3% of flux on average and we show that there are cases where we would miss 16% of flux using a power-law extrapolation.

  19. Stability of block LDLT factorization of a

    Mathematics Websites

    Higham, Nicholas J.

    factorization; Growth factor; Numerical stability; Rounding error analysis; LAPACK; LINPACK 1. Introduction and explain how Bunch's derivation of it yields a bound of order 1 for the growth factor. In Section 3 we showStability of block LDLT factorization of a symmetric tridiagonal matrix Nicholas J. Higham 1

  20. RESEARCH ARTICLE Growth control by a moving morphogen gradient during

    Physics Websites

    Jülicher, Frank

    RESEARCH ARTICLE Growth control by a moving morphogen gradient during Drosophila eye development the signaling dynamics of the morphogen Dpp, one of several Drosophila factors controlling morphogenetic growth. KEY WORDS: Eye, Development, Drosophila, Morphogen, Growth, Models, Biophysics INTRODUCTION For many

  1. Optogenetic control of nerve growth

    MIT - DSpace

    Park, Seongjun

    Due to the limited regenerative ability of neural tissue, a diverse set of biochemical and biophysical cues for increasing nerve growth has been investigated, including neurotrophic factors, topography, and electrical ...

  2. Learning II Factors that influence CC

    Multidisciplinary Databases and Resources Websites

    Coulson, Seana

    & colleagues (1987) · Slides ­ Neutral scenes ­ Pleasant scenes ­ Various products · Experimental group ­ Brand by neutral scenes · Experimental students rated Brand L significantly more positively than the Control group

  3. von Neumann algebras, II1 factors, and

    Mathematics Websites

    Sunder, V S

    at IIT Mumbai, April 24th, 2007 #12;Finite-dimensional C-algebras: Recall: Definition: A linear = tr(yx), as well as l, r : M B(L2(M, tr)) for the maps (injective unital *-homomorphism m : PZ(M) N, such that Mq = Mm(q)(C) q PZ(M); thus the map M x q xq defines an irreducible

  4. Fibrin Matrices With Affinity-Based Delivery Systems and Neurotrophic Factors Promote

    Engineering Websites

    Moran, Daniel

    ABSTRACT: Glial-derived neurotrophic factor (GDNF) and nerve growth factor (NGF) have both been shown. The delivery of either growth factor at the site of injury may, therefore, result in quantitative differences and/or growth factor, and nerve isografts. Groups with growth factor in the conduit demonstrated

  5. Growth hormone is produced within the hippocampus where it responds to age, sex, and stress

    Biology and Medicine Websites

    Shors, Tracey J.

    of insulin-like growth factor-I mRNA, suggesting a feedback relationship between insulin-like growth factor, such as learning and the response to stressful experience. estrogen growth factor learning somatotropin insulin either directly or indirectly through its downstream effector, insulin-like growth factor-I (IGF

  6. FAST METHOD FOR CALCULATING CHROMOSPHERIC Ca ii AND Mg ii RADIATIVE LOSSES W. Rammacher,1

    Physics Websites

    Ulmschneider, Peter

    in the single Ca ii K and Mg ii k lines and then scaling up these results by correction factors to account correction factors to scale the single-line losses up to the total losses were missing. It is the purpose is due to scaling of the total losses from single-line results. Acceleration of computation speeds

  7. Neurotrophin gradients and axon growth after spinal cord injury

    University of California eScholarship Repository

    Taylor, Laura Anne

    2007-01-01

    stem cells constitutively secrete neurotrophic factors and promote extensive host axonal growth after spinal cord injury.stem cells constitutively secrete neurotrophic factors and promote extensive host axonal growth after spinal cord injury.stem cells constitutively secrete neurotrophic factors and promote extensive host axonal growth after spinal cord injury.

  8. Fugu II

    University of Kansas - KU ScholarWorks

    Hacker, Randi

    2008-11-19

    Broadcast Transcript: Fugu Part II: In the last Postcard, we talked about fugu, the poisonous poisson that has been a favorite in Japan for centuries. Well, it seems that a fish farm has recently raised fugu that are poison-free. A non-toxic fugu...

  9. Mechanotransduction through growth-factor shedding into

    Biology and Medicine Websites

    So, Peter

    of mechanotransduction remain elusive1­9 . Here we find that compressive stress shrinks the lateral intercellular space responses of normal human bronchial epithelial (NHBE) cells to compressive stress: in vivo they experience such stress as a consequence of airway constriction14 , and in vitro compressive stress triggers an integrated

  10. Revisited abundance diagnostics in quasars: Fe II/Mg II ratios

    Astrophysics (arXiv)

    E. Verner; F. Bruhweiler; D. Verner; S. Johansson; T. Gull

    2003-06-25

    Both the Fe II UV emission in the 2000- 3000 A region [Fe II (UV)] and resonance emission line complex of Mg II at 2800 A are prominent features in quasar spectra. The observed Fe II UV/ Mg II emission ratios have been proposed as means to measure the buildup of the Fe abundance relative to that of the alpha-elements C, N, O, Ne and Mg as a function of redshift. The current observed ratios show large scatter and no obvious dependence on redshift. Thus, it remains unresolved whether a dependence on redshift exists and whether the observed Fe II UV/ Mg II ratios represent a real nucleosynthesis diagnostic. We have used our new 830-level model atom for Fe+ in photoionization calculations, reproducing the physical conditions in the broad line regions of quasars. This modeling reveals that interpretations of high values of Fe II UV/ Mg II are sensitive not only to Fe and Mg abundance, but also to other factors such as microturbulence, density, and properties of the radiation field. We find that the Fe II UV/ Mg II ratio combined with Fe II (UV)/ Fe II (Optical) emission ratio, where Fe II (Optical) denotes Fe II emission in 4000 - 6000 A can be used as a reliable nucleosynthesis diagnostic for the Fe/Mg abundance ratios for the physical conditions relevant to the broad-line regions (BLRs) of quasars. This has extreme importance for quasar observations with the Hubble Space Telescope and also with the future James Webb Space Telescope.

  11. Growth in Baumslag-Solitar Groups Asymptotics

    Mathematics Websites

    Freden, Eric

    is a proper factor of the overall group growth). Let's examine the next easiest case, namely BS(2,4). The edgeGrowth in Baumslag-Solitar Groups Asymptotics Groups St Andrews August 2013 Eric Freden and Jared Group Theory namely, compute the growth series of the Baumslag-Solitar group BS(2,3) using the usual

  12. NPDES Phase II Compliance &

    Environmental Sciences and Ecology Websites

    Radcliffe, David

    NPDES Phase II Compliance & Illicit Discharge Ordinances Benjamin Corson-Knowles Fall 2005 #12;The-0612 jroskie@uga.edu #12;NPDES Phase II Compliance & Illicit Discharge Ordinances Author: Benjamin Corson..................................................................................2 II. Background of the Phase II Rule

  13. Tree and stand architecture and growth described by formal grammars.

    Environmental Sciences and Ecology Websites

    Kurth, Winfried

    Tree and stand architecture and growth described by formal grammars. II. Sensitive trees­forst.gwdg.de bslobod@ufobi6.uni­forst.gwdg.de Abstract: Growth grammars (extended Lindenmayer systems) provide for growth, branching or mortality is controlled by functions which evaluate the tree or stand structure

  14. Managing Care Curriculum Clinical Medicine II

    Biology and Medicine Websites

    Finley Jr., Russell L.

    · Behavioral Risk Factors- Self Study · Programs to Improve Quality & Control Health Care Costs- LectureManaging Care Curriculum Years I-IV 2014-2015 Year II Clinical Medicine II · Community Health Assessment- Clinical Learning Exercise · Health workforce · Quality Healthcare Assessment- Self Study

  15. General law of growth and replication. Growth equation and its applications

    CERN Preprints

    Shestopaloff, Yu K

    2012-01-01

    We present significantly advanced studies of the previously introduced physical growth mechanism and unite it with biochemical growth factors. Obtained results allowed formulating the general growth law which governs growth and evolutional development of all living organisms, their organs and systems. It was discovered that the growth cycle is predefined by the distribution of nutritional resources between maintenance needs and biomass production. This distribution is quantitatively defined by the growth ratio parameter, which depends on the geometry of an organism, phase of growth and, indirectly, organism's biochemical machinery. The amount of produced biomass, in turn, defines the composition of biochemical reactions. Changing amount of nutrients diverted to biomass production is what forces organisms to proceed through the whole growth and replication cycle. The growth law can be formulated as follows: the rate of growth is proportional to influx of nutrients and growth ratio. Considering specific biochem...

  16. Role of Rate of Specific Growth Rate in Different Growth Processes: A First Principle Approach

    CERN Preprints

    Biswas, Dibyendu; Patra, Sankar Nayaran

    2015-01-01

    In the present communication, effort is given for the development of a common platform that helps to address several growth processes found in literature. Based on first principle approach, the role of rate of specific growth rate in different growth processes has been considered in an unified manner. It is found that different growth equations can be derived from the same rate equation of specific growth rate. The dependence of growth features of different growth processes on the parameters of the rate equation of specific growth rate has been examined in detail. It is found that competitive environment may increase the saturation level of population size. The exponential growth could also be addressed in terms of two important factors of growth dynamics, as reproduction and competition. These features are, most probably, not reported earlier.

  17. Induction of superficial zone protein (SZP)/lubricin/PRG 4 in muscle-derived mesenchymal stem/progenitor cells by transforming growth factor-beta1 and bone morphogenetic protein-7

    University of California eScholarship Repository

    2012-01-01

    muscle-derived mesenchymal stem/progenitor cells by transforming growthmuscle-derived mesenchymal stem/progenitor cells by transforming growthmuscle-derived mesenchymal stem/progenitor cells by transforming growth

  18. A presynaptic endosomal trafficking pathway controls synaptic growth signaling

    MIT - DSpace

    Rodal, Avital A.

    Structural remodeling of synapses in response to growth signals leads to long-lasting alterations in neuronal function in many systems. Synaptic growth factor receptors alter their signaling properties during transit through ...

  19. Interaction between Transcription Elongation Factors and mRNA 3 -End Formation at the Saccharomyces cerevisiae

    Biology and Medicine Websites

    Winston, Fred

    , California 95616 Spt6 is a conserved transcription factor that associ- ates with RNA polymerase II (pol II structure during pol II transcription. Here we present evidence that mutations that impair Spt6, a second elongation factor, Spt4, and pol II can affect 3 -end formation at GAL10. Additional analysis suggests

  20. Linking structural and process-oriented models of plant growth

    Environmental Sciences and Ecology Websites

    Kurth, Winfried

    Linking structural and process-oriented models of plant growth Development and test of the software................................................................................... 11 #12;II 2.1 Process models NEXUS as a multiple interface for functional-structural models Dissertation Zur Erlangung des

  1. Improved parametrization of the growth index for dark energy and DGP models

    General Relativity & Quantum Cosmology (arXiv)

    Jiliang Jing; Songbai Chen

    2010-02-25

    We propose two improved parameterized form for the growth index of the linear matter perturbations: (I) $\\gamma(z)=\\gamma_0+(\\gamma_{\\infty}-\\gamma_0){z\\over z+1}$ and (II) $\\gamma(z)=\\gamma_0+\\gamma_1 \\frac{z}{z+1}+(\\gamma_{\\infty}-\\gamma_1-\\gamma_0)(\\frac{z}{z+1})^{\\alpha}$. With these forms of $\\gamma(z)$, we analyze the accuracy of the approximation the growth factor $f$ by $\\Omega^{\\gamma(z)}_m$ for both the $\\omega$CDM model and the DGP model. For the first improved parameterized form, we find that the approximation accuracy is enhanced at the high redshifts for both kinds of models, but it is not at the low redshifts. For the second improved parameterized form, it is found that $\\Omega^{\\gamma(z)}_m$ approximates the growth factor $f$ very well for all redshifts. For chosen $\\alpha$, the relative error is below 0.003% for the $\\Lambda$CDM model and 0.028% for the DGP model when $\\Omega_{m}=0.27$. Thus, the second improved parameterized form of $\\gamma(z)$ should be useful for the high precision constraint on the growth index of different models with the observational data. Moreover, we also show that $\\alpha$ depends on the equation of state $\\omega$ and the fractional energy density of matter $\\Omega_{m0}$, which may help us learn more information about dark energy and DGP models.

  2. ISSN 13601725 Stability of Block LDL T Factorization of a

    Mathematics Websites

    Higham, Nicholas J.

    ­ ing method, LDL T factorization, growth factor, numerical stability, rounding error analysis, LAPACK a bound of order 1 for the growth factor. In Section 3 we show that kLk=kAk can be arbitrarily largeISSN 1360­1725 UMIST Stability of Block LDL T Factorization of a Symmetric Tridiagonal Matrix N. J

  3. Factored Language Models EE517 Lecture

    Computer Technologies and Information Sciences Websites

    Duh, Kevin

    ;2 Factored Language Models 6 Vocabulary Growth - stemmed words Source: K. Kirchhoff, et al., "Novel1 Factored Language Models EE517 Lecture April 19, 2005 Kevin Duh (duh@ee.washington.edu) Factored Language Models 1 Outline 1. Motivation 2. Factored Word Representation 3. Generalized Parallel Backoff 4

  4. Recombination Factorization

    Mathematics Websites

    Chèze, Guillaume

    Lifting and Recombination Techniques for Absolute Factorization G. CHEZE Laboratoire J.­A. Dieudonn factorization algorithm following a ``lifting and recombination `` scheme (recombination probabilistic algorithm factorization algorithm following a ``lifting and recombination `` scheme (recombination probabilistic algorithm

  5. Available online at www.sciencedirect.com FoxO transcription factors in the maintenance of cellular

    Biology and Medicine Websites

    Brunet, Anne

    are key downstream targets of insulin, growth factor, nutrient, and oxidative stress stimuli, are crucially regulated by Akt-dependent phosphoryl- ation at three specific sites in response to growth factor to growth factor stimulation and oxidative stress (Figure 1) [1,7­12]. Insulin and growth factors inhibit

  6. Growth differentiation factor 11 signals through the transforming growth factor-b receptor ALK5 to

    Biology and Medicine Websites

    Ibáñez, Carlos

    , but not in Alk4 or Alk7, potentiated Gdf11À/À-like phenotypes in vertebral, kidney and palate development with the biological functions of TGF-b1 to TGF-b3 proteins, mediates GDF11 signalling during embryogenesis. Keywords: BMP-11; Hox genes; homeotic transformation; kidney agenesis; cleft palate EMBO reports (2006) 7, 831

  7. Platelet-Derived Growth Factor and Basic Fibroblast Growth Factor Regulate Cell

    Biology and Medicine Websites

    Bongarzone, Ernesto R.

    , Maria I. Givogri, Vilma Schonmann, and Anthony T. Campagnoni* Mental Retardation Research Center are born, (Levison and Goldman, 1993; Yu et al., 1994; Richardson et al., 1997). Oligo- dendrocyte.5 in the developing spinal cord of rodents (Pringle and Richardson, 1993; Timsit et al., 1995; Spassky et al., 1998

  8. Thermal History of the Universe and the Cosmic Microwave Background. II. Structures in the

    Physics Websites

    Bartelmann, Matthias

    . cosmological consistency 8. satellite experiments #12;1. Expectations 1. today's structures 2. growth factor 3 gravitational collapse from seed fluctuations #12;1.2. Growth Factor · gravitational instability picture Temperature Fluctuations · today 0 > 1; redshift of last-scattering surface zls 1100; growth factor: ls 1 1

  9. Growth index with the cosmological constant

    HEP - Phenomenology (arXiv)

    Seokcheon Lee; Kin-Wang Ng

    2009-07-09

    We obtain the exact analytic form of the growth index at present epoch ($a=1$) in a flat universe with the cosmological constant ({\\it i.e.} the dark energy with its equation of state $\\omega_{de} = -1$). For the cosmological constant, we obtain the exact value of the current growth index parameter $\\gamma = 0.5547$, which is very close to the well known value 6/11. We also obtain the exact analytic solution of the growth factor for $\\omega_{de}$ = -1/3 or -1. We investigate the growth index and its parameter at any epoch with this exact solution. In addition to this, we are able to find the exact $\\Omega_{m}^{0}$ dependence of those observable quantities. The growth index is quite sensitive to $\\Omega_{m}^{0}$ at $z = 0.15$, where we are able to use 2dF observation. If we adopt 2dF value of growth index, then we obtain the constrain $0.11 \\leq \\Omega_{m}^{0} \\leq 0.37$ for the cosmological constant model. Especially, the growth index is quite sensitive to $\\Omega_{m}^{0}$ around $z \\leq 1$. We might be able to obtain interesting observations around this epoch. Thus, the analytic solution for this growth factor provides the very useful tools for future observations to constrain the exact values of observational quantities at any epoch related to growth factor for $\\omega_{de} = -1$ or -1/3.

  10. Vol. 6, 1063-1070, September 1995 Cell Growth & Differentiation 1063 G1 Cell Cycle Arrest and Apoptosis Are Induced in

    Biology and Medicine Websites

    Tombes, Robert M.

    to the transdudion of signals from growth and/or survival factors. Introdudion Ca2 and CaM3 are elements be specifically induced by the growth factors, EGF (9) and PDGF (1 0, 1 1). Ca2 influx is required for survival (i are: CaM, calmodulin; EGF, epidermal growth factor; PDGF, platelet-derived growth factor; Ca

  11. ORIGINAL ARTICLE Csk-binding protein (Cbp) negatively regulates epidermal growth

    Biology and Medicine Websites

    Tian, Weidong

    ORIGINAL ARTICLE Csk-binding protein (Cbp) negatively regulates epidermal growth factor, Martinsried, Germany Epidermal growth factor receptor (EGFR) and Src tyrosine kinase cooperate in regulating, and glioblastoma (Yarden and Sliwkowski, 2001). The binding of epidermal growth factor (EGF) to its receptor

  12. What Explains the Asset Growth Effect in Stock Returns? Marc L. Lipson

    Computer Technologies and Information Sciences Websites

    Aazhang, Behnaam

    in the time series of factor loadings that might explain the asset growth effect is also associated for high idiosyncratic volatility firms. Finally, we show that a risk factor based on asset growth does firms. Finally, we show that a risk factor based on asset growth does not generate a significant risk

  13. The Influence of Breed and Temperament on Circulating Concentrations of Insulin-like Growth Factor-I (IGF-I) and Its Relationship to Feed Efficiency in Beef Cattle 

    Texas A&M University - TxSpace

    Caldwell, Lisa

    2010-07-14

    also produce significant quantities of this growth promoting hormone (Daftary and Gore, 2005). The synthesis of IGF-I at these multiple locations suggests that along with its endocrine role it may also function in an autocrine or paracrine fashion... regulator of gonadotropin-releasing hormone (GnRH) and aid in the onset of puberty (Daftary and Gore, 2005). Temperament, Stress and the Hypothalamic-Pituitary-Adrenal Axis Temperament in cattle can be characterized as a fear or avoidance response...

  14. 1Il!11: m:mm:lli11I,111 Illili:llili!!ill,1ll ill ill!!ii111,111,111 mm; 206 THE HUMAN FACTOR HAS KNOCKED THREE TIMES

    Computer Technologies and Information Sciences Websites

    Meyer, Bertrand

    , Cambridge (Mass.), U.S.A., 1980, ISBN 0-87626-816-5. DIRECTIONS IN HUMAN FACTORS FOR INTER- ACTIVE SYSTEMS agreed term is a clear sign of how young the discipline is, and of the lack of concrete results produced

  15. Reveille II - 19 

    Texas A&M University - TxSpace

    Unknown

    2006-01-01

    Copyright 2012 Asmaa Sadek Kassab ii ABSTRACT In an effort to understand the resuspension phenomena, interactions of spherical micro-meter particles (glass beads (GB) and Stainless steel (SS)) were investigated experimentally on different surfaces... ABSTRACT .......................................................................................................... ii DEDICATION....................................................................................................... iv ACKNOWLEDGEMENTS...

  16. 3D Multiscale Modelling of Angiogenesis and Vascular Tumour Growth

    Mathematics Websites

    Maini, Philip K.

    Chapter 3 3D Multiscale Modelling of Angiogenesis and Vascular Tumour Growth H. Perfahl, H.M. Byrne. Reuss, and M.R. Owen Abstract We present a three-dimensional, multiscale model of vascular tumour growth, which couples nutrient/growth factor transport, blood flow, angiogenesis, vascular remodelling, movement

  17. ORIGINAL ARTICLE Early pregnancy Assessing first trimester growth: the

    Engineering Websites

    ARTICLE Early pregnancy Assessing first trimester growth: the influence of ethnic background and maternal trimester growth restriction may predict miscarriage or adverse outcome later in the pregnancy, but determinants of early growth are not well described. Our objective was to examine factors influencing fetal

  18. Identifying best practices for supporting broadband growth: Methodology and analysis

    Computer Technologies and Information Sciences Websites

    Identifying best practices for supporting broadband growth: Methodology and analysis C. Bouras a countries worldwide for supporting broadband growth. It also investigates and analyzes these practices using main steps: (a) the presentation of the main factors that have a major impact on broadband growth; (b

  19. INTRODUCTION During embryonic development, growth cones, which form the

    Biology and Medicine Websites

    Zinn, Kai

    mechanism by which growth cones respond to guidance factors is the control of tyrosine phosphorylationINTRODUCTION During embryonic development, growth cones, which form the leading edges of neuronal processes, sample the environment and make pathfinding decisions. Contacts between growth cone surface

  20. Non-domestic schurian vector space categories of polynomial growth

    Mathematics Websites

    Bekkert, Viktor

    of polynomial growth, | indK| = n, d Nn+1 . Then (1) If there exists an indecomposable factor spaceNon-domestic schurian vector space categories of polynomial growth Viktor Bekkert Universidade sincere non-domestic nonlinear schurian vector space categories of polynomial growth and their sincere

  1. GROWTH IN BAUMSLAGSOLITAR GROUPS I: SUBGROUPS AND RATIONALITY

    Mathematics Websites

    Freden, Eric

    , the overall growth series can be represented as a modified convolution product with one of the factors beingGROWTH IN BAUMSLAG­SOLITAR GROUPS I: SUBGROUPS AND RATIONALITY ERIC M. FREDEN, TERESA KNUDSON, AND JENNIFER SCHOFIELD Abstract. The computation of growth series for the higher Baumslag­Solitar groups

  2. Chap. II : Les structures

    Computer Technologies and Information Sciences Websites

    Poinsot, Laurent

    Chap. II : Les objets structur´es Laurent Poinsot Chap. II : Les objets structur´es Laurent Poinsot 12 f´evrier 2009 #12;Chap. II : Les objets structur´es Laurent Poinsot Les objets structur´es Pour de types "structur´es". #12;Chap. II : Les objets structur´es Laurent Poinsot Les objets structur´es

  3. Zeus at HERA II

    CERN Preprints

    Foster, B

    2001-01-01

    The ZEUS detector has been upgraded in a number of areas to prepare for the physics opportunities of HERA II. These upgrades, and their physics rationale and promise, are briefly outlined. The measurement of polarisation at HERA II, and its importance for the HERA II physics programme, is also discussed.

  4. Zeus at HERA II

    HEP - Experiment (arXiv)

    B. Foster

    2001-07-24

    The ZEUS detector has been upgraded in a number of areas to prepare for the physics opportunities of HERA II. These upgrades, and their physics rationale and promise, are briefly outlined. The measurement of polarisation at HERA II, and its importance for the HERA II physics programme, is also discussed.

  5. -PTOLEMY II -HETEROGENEOUS CONCURRENT

    Computer Technologies and Information Sciences Websites

    California at Berkeley, University of

    -PTOLEMY II - HETEROGENEOUS CONCURRENT MODELING AND DESIGN IN JAVA John Davis, II Christopher of Electrical Engineering and Computer Sciences University of California at Berkeley http://ptolemy with Ptolemy II 1.0 March 15, 2001 This project is supported by the Defense Advanced Research Projects Agency

  6. -PTOLEMY II -HETEROGENEOUS CONCURRENT

    Computer Technologies and Information Sciences Websites

    California at Berkeley, University of

    -PTOLEMY II - HETEROGENEOUS CONCURRENT MODELING AND DESIGN IN JAVA John Davis, II Mudit Goel University of California at Berkeley http://ptolemy.eecs.berkeley.edu Memorandum UCB/ERL M99/40 Document Contents Part 1: Using Ptolemy II 1. Introduction 1-1 1.1.Modeling and Design 1-1 1.2.Architecture Design 1

  7. Growth rates of solvable algebras Keith. A Kearnes, Emil W. Kiss, Agnes Szendrei 1 / 23 Growth rates of solvable algebras

    Mathematics Websites

    Kiss, Emil

    abelian factor group, then dG is linear. #12;Growth rates of solvable algebras Keith. A Kearnes, Emil WGrowth rates of solvable algebras Keith. A Kearnes, Emil W. Kiss, ´Agnes Szendrei 1 / 23 Growth¨otv¨os University, Budapest, Hungary szendrei@euclid.colorado.edu University of Colorado Boulder, USA #12;Growth

  8. Instability of Magnetized Ionization Fronts Surrounding H II Regions

    CERN Preprints

    Kim, Jeong-Gyu

    2014-01-01

    An ionization front (IF) surrounding an H II region is a sharp interface where a cold neutral gas makes transition to a warm ionized phase by absorbing UV photons from central stars. We investigate the instability of a plane-parallel D-type IF threaded by parallel magnetic fields, by neglecting the effects of recombination within the ionized gas. We find that weak D-type IFs always have the post-IF magnetosonic Mach number $\\mathcal{M}_{\\rm M2} \\leq 1$. For such fronts, magnetic fields increase the maximum propagation speed of the IFs, while reducing the expansion factor $\\alpha$ by a factor of $1+1/(2\\beta_1)$ compared to the unmagnetized case, with $\\beta_1$ denoting the plasma beta in the pre-IF region. IFs become unstable to distortional perturbations due to gas expansion across the fronts, exactly analogous to the Darrieus-Landau instability of ablation fronts in terrestrial flames. The growth rate of the IF instability is proportional linearly to the perturbation wavenumber as well as the upstream flow ...

  9. Non Commutative Bianchi type II Quantum Cosmology

    General Relativity & Quantum Cosmology (arXiv)

    M. Aguero; J. A. Aguilar S.; C. Ortiz; M. Sabido; J. Socorro

    2007-03-29

    In this paper we present the noncommutative Bianchi Class A cosmological models coupled to barotropic perfect fluid. The commutative and noncommutative quantum solution to the Wheeler-DeWitt equation for any factor ordering, to the anisotropic Bianchi type II cosmological model are found, using a stiff fluid ($\\gamma=1$). In our toy model, we introduce noncommutative scale factors, is say, we consider that all minisuperspace variables $\\rm q^i$ does not commute, so the simplectic structure was modified.

  10. Type II supernova diversity

    CERN Preprints

    Anderson, Joseph P

    2015-01-01

    It is now firmly established that at a significant fraction of hydrogen-rich type II supernovae (SNe II) arise from red supergiant progenitors. However, a large diversity of SN properties exist, and it is presently unclear how this can be understood in terms of progenitor differences and pre-SN stellar evolution. In this contribution, I present the diversity of SN II V-band light-curves for a large sample of SNe II, and compare these to photometry of SNe II which have progenitor mass constraints from pre-explosion imaging.

  11. Protein factors in pre-mRNA 3'-end processing C. R. Mandel, Y. Bai and L. Tong*

    Biology and Medicine Websites

    Tong, Liang

    factor, cleavage factor I, and cleavage factor II . Additional protein factors include poly(A) polymer the guano- sine at the 5'-end of the pre-mRNA is methylated at the 7 carbon; splicing to remove the intronic

  12. Name: _____________________________________ Exponential Population Growth

    Mathematics Websites

    Lega, Joceline

    Name: _____________________________________ Exponential Population Growth The equation for population growth is: N=S*t N is the new population; S is the starting population; is the growth rate on Hawaii in 24 months? Why or why not? 2) An endangered turtle species has a population growth rate of = 0

  13. [CANCER RESEARCH 63, 71587166, November 1, 2003] The Gene Expression Response of Breast Cancer to Growth Regulators: Patterns

    Physics Websites

    Ringnér, Markus

    , Gaithersburg, Maryland 20877 [S. B.] ABSTRACT The effects of hormone and growth factor signaling on gene hormones and peptide growth factors mediate diverse phys- iological functions associated with normal growth in these tumors provides an effective alternative to growth stimulation by steroid hormones. In addition

  14. 11 IIS1110 00 IIS010 0101244IIS

    Mathematics Websites

    Chen, Sheng-Wei

    ,Taiwan iIS Update #12;Spring/Summer2010 2 Message from the Director Institute of Information Science The- searchtalentintheITindustryandacademiain Taiwan. DIRECTOR: Dr.Yew,Pen-Chung DEPUTYDIRECTORS: Dr.Chen,MengChang Dr.Ko,Ming-TatLanguagesandFormalMethodsLab Dr.Ko,Ming-Tat ComputationTheoryandAlgorithmsLab The

  15. 11 IIS1110 00 IIS010 0101244IIS

    Mathematics Websites

    Chen, Sheng-Wei

    Sinica,Taiwan iIS Update Spring/Summer 2011 #12;Spring/Summer2011 2 Message from the Director Institute's Taiwan International Graduate Program. This Ph.D. program was established in 2002 and has enrolled about at top universities in Taiwan. This allows our institution to play a very significant role in training

  16. Perturbative Growth of Cosmological Clustering II: The Two Point Correlation

    Astrophysics (arXiv)

    Somnath Bharadwaj

    1995-11-19

    We use the BBGKY hierarchy equations to calculate, perturbatively, the lowest order nonlinear correction to the two point correlation and the pair velocity for Gaussian initial conditions in a critical density matter dominated cosmological model. We compare our results with the results obtained using the hydrodynamic equations which neglect pressure and we find that the two match, indicating that thare are no effects of multistreaming at this order of perturbation. We analytically study the effect of small scales on the large scales by calculating the nonlinear correction for a Dirac delta function initial two point correlation. We find that the induced two point correlation has a $x^{-6}$ behaviour at large separations. We have considered a class of initial conditions where the initial power spectrum at small $k$ has the form $k^n$ with $0 < n \\le 3$ and have numerically calculated the nonlinear correction to the two point correlation, its average over a sphere and the pair velocity over a large dynamical range. We find that at small separations the effect of the nonlinear term is to enhance the clustering whereas at intermediate scales it can act to either increase or decrease the clustering. At large scales we find a simple formula which gives a very good fit for the nonlinear correction in terms of the initial function. This formula explicitly exhibits the influence of small scales on large scales and because of this coupling the perturbative treatment breaks down at large scales much before one would expect it to if the nonlinearity were local in real space. We physically interpret this formula in terms of a simple diffusion process. We have also investigated the case $n=0$ and we find that it differs from the other cases in certain respects. We investigate a recently proposed scaling property of

  17. The growth of helium burning cores

    CERN Preprints

    Spruit, H C

    2015-01-01

    Helium burning in the convective cores of horizontal branch and `red clump' stars appears to involve a process of `ingestion' of unburnt helium into the core, the physics of which has not been identified yet. I show here that a limiting factor controlling the growth is the buoyancy of helium entering the denser C+O core. It yields a growth rate which scales directly with the convective luminosity of the core, and agrees with constraints on core size from current asteroseismology.

  18. On possible growth of Toeplitz languages

    CERN Preprints

    Cassaigne, Julien; Petrov, Fedor

    2010-01-01

    We consider a new family of factorial languages whose subword complexity grows as $\\Theta(n^{\\alpha})$, where $\\alpha$ is the root of some transcendent equation. Analytical methods and in particular, a corollary of the Wiener-Pitt theorem, are used to find the asymptotic growth of the complexity. Factorial languages considered are languages of arithmetical factors of some Toeplitz words. So, we describe a new family of words with an unusual growth of arithmetical complexity.

  19. -PTOLEMY II -HETEROGENEOUS

    Computer Technologies and Information Sciences Websites

    California at Berkeley, University of

    -PTOLEMY II - HETEROGENEOUS CONCURRENT MODELING AND DESIGN IN JAVA John Davis, II Ron Galicia Mudit University of California at Berkeley http://ptolemy.eecs.berkeley.edu Document Version 0.1.1 February 12.2.8. Timed CSP and Timed PN 1-5 1.3.Choosing Models of Computation 1-6 1.4.Visual Syntaxes 1-6 1.5.Ptolemy II

  20. PTOLEMY II HETEROGENEOUS

    Computer Technologies and Information Sciences Websites

    California at Berkeley, University of

    ­PTOLEMY II ­ HETEROGENEOUS CONCURRENT MODELING AND DESIGN IN JAVA John Davis, II Ron Galicia Mudit University of California at Berkeley http://ptolemy.eecs.berkeley.edu Document Version 0.1.1 February 12 Syntaxes 1­6 1.5. Ptolemy II 1­7 1.5.1. Package Structure 1­7 1.5.2. Overview of Key Classes 1­9 1

  1. Type II universal spacetimes

    CERN Preprints

    Hervik, Sigbjørn; Pravda, Vojt?ch; Pravdová, Alena

    2015-01-01

    We study type II universal metrics of the Lorentzian signature. These metrics solve vacuum field equations of all theories of gravitation with the Lagrangian being a polynomial curvature invariant constructed from the metric, the Riemann tensor and its covariant derivatives of arbitrary order. We provide examples of type II universal metrics for all composite number dimensions. On the other hand, we have no examples for prime number dimensions and we prove non-existence of type II universal spacetimes in five dimensions. We also present type II vacuum solutions of selected classes of gravitational theories, such as Lovelock, quadratic and L(Riemann) gravities.

  2. Type II universal spacetimes

    General Relativity & Quantum Cosmology (arXiv)

    Sigbjørn Hervik; TomᚠMálek; Vojt?ch Pravda; Alena Pravdová

    2015-04-09

    We study type II universal metrics of the Lorentzian signature. These metrics solve vacuum field equations of all theories of gravitation with the Lagrangian being a polynomial curvature invariant constructed from the metric, the Riemann tensor and its covariant derivatives of arbitrary order. We provide examples of type II universal metrics for all composite number dimensions. On the other hand, we have no examples for prime number dimensions and we prove non-existence of type II universal spacetimes in five dimensions. We also present type II vacuum solutions of selected classes of gravitational theories, such as Lovelock, quadratic and L(Riemann) gravities.

  3. EFFECfS OF FOOD CONCENTRATION AND TEMPERATURE ON DEVELOPMEN'f, GROWTH, AND SURVIVAL OF

    Environmental Sciences and Ecology Websites

    environmental factors on growth, devel- opment, and survival of white perch eggs and larvae. Past studies of two vari- able environmental factors, food concentration and temperature, on the development, growthEFFECfS OF FOOD CONCENTRATION AND TEMPERATURE ON DEVELOPMEN'f, GROWTH, AND SURVIVAL OF WHITE PERCH

  4. Strange Attractor in Immunology of Tumor Growth

    Nonlinear Sciences (arXiv)

    Margarita Voitikova

    1997-08-21

    The time delayed cytotoxic T-lymphocyte response on the tumor growth has been developed on the basis of discrete approximation (2-dimensional map). The growth kinetic has been described by logistic law with growth rate being the bifurcation parameter. Increase in the growth rate results in instability of the tumor state and causes period-doubling bifurcations in the immune+tumor system. For larger values of tumor growth rate a strange attractor has been observed. The model proposed is able to describe the metastable-state production when time series data of the immune state and the number of tumor cells are irregular and unpredictable. This metastatic disease may be caused not by exterior (medical) factors, but interior density dependent ones.

  5. RNA Polymerase II and TAFs Undergo a Slow Isomerization after the Polymerase Is Recruited to

    Chemistry Websites

    Goodrich, James

    requires that RNA polymerase II (Pol II) and the general transcription factors assemble on promoter DNA to form an organized complex capable of initiating transcription. Biochemical studies have shown that Pol that TAFs sharply decrease the rate at which Pol II, TFIIB, and TFIIF assemble on promoter-bound TFIID

  6. Nucleotide-Directed Growth of Semiconductor Nanocrystals Sean Hinds, Bradford J. Taft, Larissa Levina, Vlad Sukhovatkin, Chad J. Dooley, Marc D. Roy,

    Engineering Websites

    Sargent, Edward H. "Ted"

    model of nanoparticle growth: a ligand (i) binds the precursor metal cation during crystal growth, (ii, sugar, and phosphate functionalities found in polynucleotides, could serve as useful ligands. Syntheses

  7. Empirical Verification of the Fe II Oscillator Strengths in the FUSE Bandpass

    Astrophysics (arXiv)

    J. Christopher Howk; Kenneth R. Sembach; Katherine C. Roth; Jeffrey W. Kruk

    2000-07-17

    We report empirical determinations of atomic oscillator strengths, or f-values, for 11 ground-state transitions of Fe II in the wavelength range 1050 to 1150 Ang. We use ultraviolet absorption line observations of interstellar material towards stars in the Galaxy and the Magellanic Clouds taken with Copernicus, the Goddard High Resolution Spectrograph on-board the Hubble Space Telescope, and the Far Ultraviolet Spectroscopic Explorer. We derive absolute oscillator strengths by a combination of the apparent optical depth, component fitting, and curve-of-growth fitting techniques. Our derived oscillator strengths are generally in excellent agreement with recent theoretical calculations by Raassen & Uylings using the orthogonal operator technique. However, we identify three of the eleven transitions studied here whose f-values seem to be incompatible with these calculations, by as much as a factor of two. We suggest revisions to these f-values based upon our analysis.

  8. Journal of Statistical Physics (1992) MODEL OF CLUSTER GROWTH AND PHASE SEPARATION

    Mathematics Websites

    1992-01-01

    Interface Diffusion, Phase Coexistence and Growth, Cluster Coarsening, Structure Factor Scaling ABSTRACT WeJournal of Statistical Physics (1992) MODEL OF CLUSTER GROWTH AND PHASE SEPARATION: EXACT RESULTS present exact results for a lattice model of cluster growth in 1D. The growth mech­ anism involves

  9. Fast Nonparametric Matrix Factorization for Large-scale Collaborative Filtering

    Computer Technologies and Information Sciences Websites

    Fast Nonparametric Matrix Factorization for Large-scale Collaborative Filtering Kai Yu Shenghuo Zhu Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA ABSTRACT With the sheer growth of online factorization methods by allowing the latent factors of two low-rank matrix factorization methods, the singular

  10. Observational links between AGN evolution and galaxy growth

    Astrophysics (arXiv)

    L. Miller

    2006-11-21

    There is growing interest in the possible link between the growth of supermassive black holes and the effect of feedback from them on galaxy growth. There are three areas of significant uncertainty: (i) the physics of the feedback; (ii) the prevalence and effectiveness of feedback; (iii) the link between the growth of black holes and their hosts. The 2QZ optical QSO survey indicates that luminous QSOs are relatively short-lived, and it has recently been shown that the observed bolometric luminosity density from all AGN and its evolution can be reproduced if black holes grew coevally with their galaxies, implying but not requiring a causal link between galaxy growth and black hole growth. At low redshifts there is some evidence that black hole and galaxy growth are starting to decouple.

  11. Growth mechanism of nanostructured superparamagnetic rods obtained by electrostatic co-assembly

    Condensed Matter (arXiv)

    M. Yan; J. Fresnais; J. -F. Berret

    2010-10-14

    We report on the growth of nanostructured rods fabricated by electrostatic co-assembly between iron oxide nanoparticles and polymers. The nanoparticles put under scrutiny, {\\gamma}-Fe2O3 or maghemite, have diameter of 6.7 nm and 8.3 nm and narrow polydispersity. The co-assembly is driven by i) the electrostatic interactions between the polymers and the particles, and by ii) the presence of an externally applied magnetic field. The rods are characterized by large anisotropy factors, with diameter 200 nm and length comprised between 1 and 100 {\\mu}m. In the present work, we provide for the first time the morphology diagram for the rods as a function of ionic strength and concentration. We show the existence of a critical nanoparticle concentration and of a critical ionic strength beyond which the rods do not form. In the intermediate regimes, only tortuous and branched aggregates are detected. At higher concentrations and lower ionic strengths, linear and stiff rods with superparamagnetic properties are produced. Based on these data, a mechanism for the rod formation is proposed. The mechanism proceeds in two steps : the formation and growth of spherical clusters of particles, and the alignment of the clusters induced by the magnetic dipolar interactions. As far as the kinetics of these processes is concerned, the clusters growth and their alignment occur concomitantly, leading to a continuous accretion of particles or small clusters, and a welding of the rodlike structure.

  12. Testing factorization

    HEP - Phenomenology (arXiv)

    Gudrun Hiller

    2001-11-19

    We briefly review the status of factorization in $b$-decays. We discuss several experimental tests of its nature and stress their importance. We show that decays into mesons which have small decay constants or spin greater than one (`designer mesons') offer a variety of new opportunities.

  13. Precision Measurements of Ice Crystal Growth Rates Kenneth G. Libbrecht1

    Physics Websites

    Libbrecht, Kenneth G.

    Introduction The growth of snow crystals from water vapor in air is governed by a number of factors, with vapor grown under different conditions remain unexplained [1]. In particular, the growth morphology of snow

  14. PNUTS/PP1 Regulates RNAPII-Mediated Gene Expression and Is Necessary for Developmental Growth

    MIT - DSpace

    Ciurciu, Anita

    In multicellular organisms, tight regulation of gene expression ensures appropriate tissue and organismal growth throughout development. Reversible phosphorylation of the RNA Polymerase II (RNAPII) C-terminal domain (CTD) ...

  15. HIGH PRESSURE VAPOR TRANSPORT OF ZnGeP 2 : II. THREEDIMENSIONAL SIMULATION OF GASDYNAMICS UNDER

    Computer Technologies and Information Sciences Websites

    HIGH PRESSURE VAPOR TRANSPORT OF ZnGeP 2 : II. THREE­DIMENSIONAL SIMULATION OF GASDYNAMICS UNDER pressure vapor transport (HPVT) of compound semiconductors is modeled. The modeling is for the growth of II Pascals pressure. Effects of density variations on p­polarized reflectance spectroscopy are also examined

  16. CALCULUS ON THE SIERPINSKI GASKET II: POINT SINGULARITIES, EIGENFUNCTIONS, AND

    Mathematics Websites

    Fiedler, Bernold

    CALCULUS ON THE SIERPINSKI GASKET II: POINT SINGULARITIES, EIGENFUNCTIONS, AND NORMAL DERIVATIVES on the Sierpinski gasket (SG) related to the Laplacian defined by Kigami: harmonic functions, multiharmonic on the Sierpinski gasket (SG). In [NSTY], which we will refer to as part I, the growth properties of monomials

  17. Developmental regulation of skull morphology II: ontogenetic dynamics of covariance

    Environmental Sciences and Ecology Websites

    Saltzman, Wendy

    Developmental regulation of skull morphology II: ontogenetic dynamics of covariance Miriam Leah in skull shape throughout most of postnatal growth results from a balance between processes generating over developmental time. However, at least in the case of rodent skull shape, variance diminishes by 50

  18. Fracture toughness and fatigue crack growth characteristics of nanotwinned copper

    Materials Science Websites

    Dao, Ming

    sensitivity and much lower activation volume, as well as improved resistance to corrosion, fatigue crack values of stress intensity factor range (the so-called near-threshold regime with crack growth ratesFracture toughness and fatigue crack growth characteristics of nanotwinned copper A. Singh a,1 , L

  19. On Fatigue Crack Growth Using Cohesive Zone Model

    Mathematics Websites

    Paulino, Glaucio H.

    8/8/2011 On Fatigue Crack Growth Using Cohesive Zone Model Kyoungsoo Park1; Glaucio H. Paulino2-on stress intensity factors Nonlinear cohesive zone model Constitutive model of fatigue crack growth, Southwest Research Institute (www.swri.org) AFGROW (www.afgrow.net), LexTech, Inc. Nonlinear cohesive zone

  20. SS CC II EE NN TT II FF II CC HH II GG HH LL II GG HH TT SS Soft condensed matter

    Chemistry Websites

    Ihee, Hyotcherl

    59 SS CC II EE NN TT II FF II CC HH II GG HH LL II GG HH TT SS Soft condensed matter AA LL II GG HH TT FF OO RR SS CC II EE NN CC EE Principal publication and authors Q.Y. Kong (a), J.H. Lee (b), K) at different concentrations. #12;60 HH II GG HH LL II GG HH TT SS 22 00 11 00 EE SS RR FF The UV-vis spectrum

  1. PERTURBATIONS OF SUBALGEBRAS OF TYPE II1 FACTORS

    Mathematics Websites

    Smith, Roger

    the hypothesis that the relative commutant in N of each algebra is equal to its center, we prove that close­norm. This hypothesis is satisfied, in particular, by masas and subfactors of trivial relative are masas, subfactors, or algebras whose relative commutants in N equal their centers. In these special

  2. Elasticity of Factorization in Number Fields, Part II

    Hopf Topology Archive

    2012-10-19

    Oct 5, 2012 ... contained in K such that there exist an element d , .6 1#2 for which da ' . ... s. 3 j)$ pj * r.. In particular, r5?. Since ? is irreducible, we have that r * ?? for some ? , . ..... If Cl contains a subgroup of type Zn, n > $, then p .! , then p .

  3. STRONG SINGULARITY OF SINGULAR MASAS IN II1 FACTORS

    Mathematics Websites

    Smith, Roger

    by the property that any unitary w N for which A = wAw must lie in A. A strongly singular masa A is one that satisfies the inequality EA - EwAw ,2 w - EA(w) 2 for all unitaries w N, where EA is the conditional to be strongly singular when the inequality EA - EwAw ,2 w - EA(w) 2 (1.2) holds for all unitaries w N, where

  4. Masas and Bimodule Decompositions of II_1 Factors 

    Texas A&M University - TxSpace

    Mukherjee, Kunal K.

    2010-10-12

    (x)IHx, where c(x) ?C for almost all x, then T is said to be diagonalizable. It is easyto see that the fibres of a decomposable operatorare uniquelydetermined up to an almost sure equivalence. The collection of diagonalizable and decomposable operators both form...

  5. INTRODUCTION The postembryonic growth of an organism differs from the

    Biology and Medicine Websites

    Montpellier II, Université

    at the end of embryogenesis. This line is formed by a migrating primordium that originates from the post assumed that the postembryonic growth of the fish lateral line would occur by budding from the primary by a migrating primordium, primII. This primordium originates from a cephalic region much like the primordium

  6. Integrable mappings and polynomial growth

    HEP - Theory (arXiv)

    S. Boukraa; J-M. Maillard; G. Rollet

    1994-03-07

    We describe birational representations of discrete groups generated by involutions, having their origin in the theory of exactly solvable vertex-models in lattice statistical mechanics. These involutions correspond respectively to two kinds of transformations on $q \\times q$ matrices: the inversion of the $q \\times q$ matrix and an (involutive) permutation of the entries of the matrix. We concentrate on the case where these permutations are elementary transpositions of two entries. In this case the birational transformations fall into six different classes. For each class we analyze the factorization properties of the iteration of these transformations. These factorization properties enable to define some canonical homogeneous polynomials associated with these factorization properties. Some mappings yield a polynomial growth of the complexity of the iterations. For three classes the successive iterates, for $q=4$, actually lie on elliptic curves. This analysis also provides examples of integrable mappings in arbitrary dimension, even infinite. Moreover, for two classes, the homogeneous polynomials are shown to satisfy non trivial non-linear recurrences. The relations between factorizations of the iterations, the existence of recurrences on one or several variables, as well as the integrability of the mappings are analyzed.

  7. Doublon Growth in Solidification

    Condensed Matter (arXiv)

    Brian Utter; E. Bodenschatz

    2004-08-13

    We present experiments on the doublon growth morphology in directional solidification. Samples used are succinonitrile with small amounts of poly(ethylene oxide), acetone, or camphor as the solute. Doublons, or symmetry-broken dendrites, are generic diffusion-limited growth structures expected at large undercooling and low anisotropy. Low anisotropy growth is achieved by selecting a grain near the $\\{111\\}$ plane leading to either seaweed (dense branching morphology) or doublon growth depending on experimental parameters. We find selection of doublons to be strongly dependent on solute concentration and sample orientation. Doublons are selected at low concentrations (low solutal undercooling) in contrast to the prediction of doublons at large thermal undercooling in pure materials. Doublons also exhibit preferred growth directions and changing the orientation of a specific doublonic grain changes the character and stability of the doublons. We observe transitions between seaweed and doublon growth with changes in concentration and sample orientation.

  8. Abstract Growth and seasonal water use was mea-sured amongst trees growing in an old growth Scots

    Environmental Sciences and Ecology Websites

    Mencuccini, Maurizio

    -tree hydraulic conductance and stomatal canopy conductance with tree height in the unthinned stands, in agreement with the hydraulic limitation hypothesis. However, the effect of this reduction in hydraulic efficiency on growth, suggesting that hydraulic and nutritional factors combined to produce the decline in growth efficiency

  9. A Comprehensive Contribution Factor Method for Congestion Management

    Power Transmission, Distribution and Plants Websites

    : songjefferson@neo.tamu.edu, kezunov@ee.tamu.edu ). This paper introduces the mathematical formulation are given in Section V and VI respectively. II. MATHEMATICAL FORMULATION A. Flow Network Contribution Factor

  10. Growth modes of quasicrystals

    Condensed Matter (arXiv)

    C. V. Achim; M. Schmiedeberg; H. Löwen

    2014-05-21

    The growth of quasicrystals, i.e., aperiodic structures with long-range order, seeded from the melt is investigated using a dynamical phase field crystal model. Depending on the thermodynamic conditions, two different growth modes are detected, namely defect-free growth of the stable quasicrystal and a mode dominated by phasonic flips which are incorporated as local defects into the grown structure such that random tiling-like ordering emerges. The latter growth mode is unique to quasicrystals and can be verified in experiments on one-component mesoscopic systems.

  11. I Ii I '.. i I

    Environmental Management and Restoration Websites

    Doty, Sharon Lafferty

    the ,', . ;,Qif~1itftrtll(2Cili(i6tOQII~ ' .:;tgt4ii«illi~ o~pages ,13&1~~' ;~; ·,··;'9£WI~if)id in this bulletin. June 19-AugusI18: Full Term · June 19·July 19:aTerm · July 2D-August18:bTerm APRIL 26 APRIL 24I iii CCDurses I Ii I '.. ·i I :: I II i Ii slUnmer?.' I . , . ill. --.. [I: - 'Ii

  12. Mass transport in morphogenetic processes: a second gradient theory for volumetric growth and material remodeling

    Mathematics Websites

    Ambrosi, Davide

    by Homer in the Odyssey, books II and VIII, with a meaning of "outward appearance" 2 the mass unit of 1Mass transport in morphogenetic processes: a second gradient theory for volumetric growth is the first attempt to describe both volumetric growth and mass transport phenomena in a single

  13. Cosmological HII Bubble Growth During Reionization

    CERN Preprints

    Shin, Min-Su; Cen, Renyue

    2007-01-01

    We present general properties of ionized hydrogen (HII) bubbles and their growth based on a state-of-the-art large-scale (100 Mpc/h) cosmological radiative transfer simulation. The simulation resolves all halos with atomic cooling at the relevant redshifts and simultaneously performs radiative transfer and dynamical evolution of structure formation. Our major conclusions include: (1) for significant HII bubbles, the number distribution is peaked at a volume of ~ 0.6 Mpc^3/h^3 at all redshifts. But, at z 10 even the largest HII bubbles have a balanced ionizing photon contribution from Pop II and Pop III stars, while at z < 8 Pop II stars start to dominate the overall ionizing photon production for large bubbles, although Pop III stars continue to make a non-negligible contribution. (6) The relationship between halo number density and bubble size is complicated but a strong correlation is found between halo number density and bubble size for for large bubbles.

  14. Reveille II - 5 

    Texas A&M University - TxSpace

    Unknown

    2006-01-01

    betHeen the two ships. Hv[ell, Hell, Capt3,in Kirk! EOH delightful to see you again! Ii uA pleasure 9 I 'm sure~ Captain Koloth, tI smiled Kirk. "Ro'" long has it been?!? "Too long, my dear friend. Vlhy, ><0 haven't met since that unfortunate 3... "Is that surprising? regret his vi.olation of Como, return him and \\;e'll say no more about it. the Neutral Zone." I bet you do, thought Kirk. thought he had persuaded him. Not He smiled again at Koloth, Vlho .immediately so. IiSorry, Koloth...

  15. PROBLEMS OF RELATIVE GROWTH

    Biology and Medicine Websites

    Strauss, Richard E.

    PROBLEMS OF RELATIVE GROWTH Julian S. Huxley with a new introduction by Frederick B. Churchill is reprinted by arrangement with the estate of Sir Julian S. Huxley. It has been reproduced from the 1932 Dial-in-Publication Data Huxley, Julian, 1887-1975. Problems of relative growth I Julian S. Huxley ; with a new

  16. Metropolitan Growth Planning

    Energy Storage, Conversion and Utilization Websites

    Handy, Susan L.

    references. ISBN: 1-58213-063-9 1. Regional planning--California--History. 2. Cities and townsMetropolitan Growth Planning in California, 1900­2000 · · · Elisa Barbour 2002 PUBLIC POLICY- Metropolitan growth planning in California, 1900-2000 / Elisa Barbour. p. cm. Includes bibliographical

  17. Discrete Growth Models

    Mathematical Physics (arXiv)

    Dorothea M. Eberz-Wagner

    1999-08-06

    Part I of the thesis gives a complete analysis of gaps in a one-dimensional creation-annihilation model. Part II contains a proof of the existence of infinitely many holes in the two-dimensional DLA cluster.

  18. The Histone Folds in Transcription Factor TFIID*

    Biotechnology Websites

    Ikura, Mitsuhiko

    TAFII62 and TAFII42, plus many DNA-binding proteins and multimeric proteins. The data base search also a foundation for association of the other initiation factors and RNA polymerase II. Biochemical studies. The nucleosome core consists of 146 bp of DNA wrapped around an octameric complex of two copies of each

  19. INTRODUCTION Fibroblast Growth Factors (FGFs) are vital intercellular

    Biology and Medicine Websites

    Krasnow, Mark A.

    system (reviewed by Skaer, 1997). In worms, FGF signaling is required for migration of sex myoblasts (reviewed by Martin, 1998). Subsequent outgrowth of the bud and specification of the limb skeletal elements al., 1994). The AER regresses after the precursors of the skeletal elements have been specified

  20. A module of negative feedback regulators defines growth factor signaling

    Biology and Medicine Websites

    Domany, Eytan

    signaling through profiling of protein phosphorylation and gene expression, demonstrating the presence and concentrating on regulation of transcription and mRNA stability, we demonstrate that a number of genes within the delayed early gene cluster function as feedback regulators of immediate early genes. Consistent

  1. ARTICLE IN PRESS Platelet-derived growth factor regulates oligodendrocyte

    Biology and Medicine Websites

    Richardson, William D.

    such as multiple sclerosis, it will be important to understand the mechanisms that control oligodendrocyte demyelinating diseases such as multiple 1044-7431/$ - see front matter D 2004 Elsevier Inc. All rights reserved­xxx sclerosis (MS) (Franklin, 2002; Ludwin, 1987). A major source of remyelinating oligodendrocytes is thought

  2. Introduction Members of the fibroblast growth factor (FGF) superfamily of

    Biology and Medicine Websites

    McConnell, Susan

    ), nasal cavity, forebrain, lower jaw, eyelids and pinnae. Analysis of mutants indicates that although of apoptosis, resulting in cessation of nasal cavity invagination and loss of virtually all OE neuronal cell types. These findings demonstrate that Fgf8 is crucial for proper development of the OE, nasal cavity

  3. REGULAR ARTICLE Growth factor effects on costal chondrocytes for tissue

    Engineering Websites

    Athanasiou, Kyriacos

    . Samples were quantitatively assessed for total collagen, glycosami- noglycans, collagen type I, collagen collagen, glycosaminoglycans, and aggregate modulus doubling during this time. Further optimization healthy hyaline articular cartilage, fibrocar- tilage also contains collagen type I, and whereas cartilage

  4. INTRODUCTION The fibroblast growth factors (FGFs) constitute a large family

    Biology and Medicine Websites

    Perrimon, Norbert

    affinity transmembrane protein tyrosine kinase receptors (Mason, 1994; Wilkie et al., 1995). By binding (HSPGs) act as low affinity FGF co-receptors that facilitate FGF signal transduction (Mason, 1994; Ornitz

  5. ORIGINAL ARTICLE HEXIM1 modulates vascular endothelial growth factor expression

    Biotechnology Websites

    role in the etiology and progression of breast cancers and mediate their actions through estrogen and uterus tissues and in breast cancer cell lines (Hyder, 2006). The VEGF gene is also known to be estrogen in breast epithelial cells and mammary gland N Ogba1 , YQ Doughman2 , LJ Chaplin1 , Y Hu1 , M Gargesha3 , M

  6. Polyelectrolyte multilayer growth factor delivery : mediating tissue/device interactions

    MIT - DSpace

    Macdonald, Mara Lee

    2010-01-01

    This thesis focuses on the use of ultrathin therapeutic protein delivery films to control host tissue/medical device implant interactions, thereby reducing complications that lead to implant failure. The Layer by Layer ...

  7. Epidermal Growth Factor Receptor Tyrosine Kinase InhibitorResistant Disease

    Biology and Medicine Websites

    : 10.1200/JCO.2012.43.3912 A B S T R A C T Purpose EGFR-mutant lung cancer was first described as a new the disease. Methods This article reviews the clinical implications of EGFR mutations in lung cancer of EGFR mutations has altered the ways in which we consider and treat non­small-cell lung cancer (NSCLC

  8. Factors Promoting Personal Growth When Teaching Academically Diverse Classes

    University of Kansas - KU ScholarWorks

    Lenz, B. Keith; Melvin, Jeff; Kissam, Brenda; Bulgren, Janis; Roth, Janet

    1992-08-01

    The study was conducted as a collaborative research project with 42 secondary science and social studies teachers in two school districts in eastern Kansas. Researchers and teachers met in a series of Cooperative Study Groups to discuss questions...

  9. INTRODUCTION Many polypeptide growth factors are expressed in the mam-

    Biology and Medicine Websites

    Richardson, William D.

    , and the paucity of markers that can be used to identify neural cells in situ. For these reasons we have, and contains glial cells but no neuronal cell bodies. The retina contains several types of neurons and photoreceptors in addition to glial cells. The development, cytoarchitecture and physiology of the retina

  10. Domain Growth in Chiral Phase Transitions

    Nuclear Theory (arXiv)

    Awaneesh Singh; Sanjay Puri; Hiranmaya Mishra

    2011-07-04

    We investigate the kinetics of chiral phase transitions in quark matter. We discuss the phase diagram of this system in both a microscopic framework (using the Nambu-Jona-Lasinio model) and a phenomenological framework (using a Landau free energy). Then, we study the far-from-equilibrium coarsening dynamics subsequent to a quench from the chirally-symmetric phase to the massive quark phase. Depending on the nature of the quench, the system evolves via either {\\it spinodal decomposition} or {\\it nucleation and growth}. The morphology of the ordering system is characterized using the order-parameter correlation function, structure factor, domain growth laws, etc.

  11. TU & MA: ARSENIC UPTAKE BY THE HYPERACCUMULATOR LADDER BRAKE 641 reproductive growth of simulated and field-grown soybean. I. Seed-dynamics of N2-fixing, field-growing Alnus glutinosa under elevated

    Environmental Management and Restoration Websites

    Ma, Lena

    and field-grown soybean. I. Seed- dynamics of N2-fixing, field-growing Alnus glutinosa under elevated growth of soybean (Glycine (Glycine max): II. Dry matter allocation and seed growth rates. max). Crop Sci

  12. Repression of Runx2 function by TGF-b through recruitment of class II histone deacetylases

    Biology and Medicine Websites

    Derynck, Rik

    , Department of Anatomy, Programs in Cell Biology and Developmental Biology, University of California, San Francisco, CA, USA Transforming growth factor-b (TGF-b) inhibits osteoblast differentiation through presents an accessible, physiological sys- tem to study how transforming growth factor-b (TGF-b) represses

  13. Mon. Not. R. Astron. Soc. 366, L6L9 (2006) doi:10.1111/j.1745-3933.2005.00119.x [O II] line ratios

    Physics Websites

    Nahar, Sultana Nurun

    2006-01-01

    of Astronomy, The Ohio State University, Columbus, OH 43210, USA 2Department of Education, The Ohio State fine-structure lines [O II] 3729, 3726 and [S II] 6716, 6731. Their utility stems from several factors

  14. SEPARABILITY II KEITH CONRAD

    Mathematics Websites

    Lozano-Robledo, Alvaro

    SEPARABILITY II KEITH CONRAD 1. Introduction Separability of a finite field extension L/K can be described in several different ways. The original definition is that every element of L is separable over K (that is, has a separable minimal poynomial in K[X]). We will give here three descriptions

  15. CALCULUS II BASIC INFORMATION

    Mathematics Websites

    Bloch, Ethan

    by writing your homework carelessly. Mathematics must be written carefully, and legibly, no differently fromMATH 142B CALCULUS II FALL 2013 BASIC INFORMATION Class ·Mon. 1:30-2:50 ·Wed. 1:30-2:50 ·Hegeman:00-12:00, 4:40-5:40 ·Thur. 2:30-4:00 Text ·Stewart, James, "Calculus: Concepts and Contexts," 4nd ed

  16. (MATH 1302) Calculus II

    Engineering Websites

    Huang, Haiying

    (MATH 1302) MATH 1426 Calculus I MATH 2425 Calculus II MATH 2326 Calculus III IE 3312 PHYS 1443 PHYS 1444 IE 3301 EE 2440 Circuits MATH 3319 ENGL 1301 ENGL 1302 (1310) (Intro) 1320 C/C++ 2312 Ass *4305 Cmpiler *4308 AI Required courses for a BS in Computer Science and Engineering (BSCSE) (127 hrs

  17. Calculus II Calculus III

    Engineering Websites

    Huang, Haiying

    MATH 1426 Calculus I MATH 2425 Calculus II MATH 2326 Calculus III PHYS 1443 PHYS 1444 ENGL 1301) Math Placement Test/Advising (MATH prerequisite classes as needed) Prerequisite Co-requisite 6 hrs of Math/Sci Electives NOTE: Required courses are in Bold (MATH 1302) (MATH 1323) 3315 Theo 3302 Prog

  18. Calculus II Calculus III

    Engineering Websites

    Huang, Haiying

    MATH 1426 Calculus I MATH 2425 Calculus II MATH 2326 Calculus III PHYS 1443 PHYS 1444 ENGL 1301) Math Placement Test/Advising (MATH prerequisite classes as needed) Prerequisite Co-requisite NOTE: Required courses are in Bold. (MATH 1302) (MATH 1323) (1310) (or consent of instructor) 3315 Theo 3302 Prog

  19. ANALYSIS II Spring 1998

    Computer Technologies and Information Sciences Websites

    Sharpley, Robert

    ANALYSIS II Math 555 Spring 1998 Instructor: Professor: Bob Sharpley Office: 313D LeConte Office Hours: MW 4 p.m. or appointment. Prequisite: Math 554 or equivalent. See for example the lecture notes in Math 554 (Spring 96) Course Materials: General Reference 1. Real Analysis, A First Course, by Russell A

  20. Calculus II Calculus III

    Engineering Websites

    Huang, Haiying

    MATH 1426 Calculus I MATH 2425 Calculus II MATH 2326 Calculus III PHYS 1443 PHYS 1444 ENGL 1301) Math Placement Test/Advising (MATH prerequisite classes as needed) Prerequisite Co-requisite NOTE: Required courses are in Bold (MATH 1302) (MATH 1323) (1310) (or consent of instructor) 3315 Theo 3302 Prog

  1. Physics at HERA II

    HEP - Phenomenology (arXiv)

    W. Buchmüller

    2001-11-15

    Deep inelastic electron proton scattering at HERA II will allow precise studies of QCD and stringent tests of physics beyond the standard model. We discuss these two aspects of DIS with emphasis on the regime of high gluon densities at small $x$ and on scalar quark production in supersymmetric theories with broken R-parity.

  2. MgII Absorbers: Halos or Disks?

    Astrophysics (arXiv)

    Jane C. Charlton; Christopher W. Churchill

    1996-01-22

    We challenge the conventional view that the majority of MgII/Lyman limit absorbers are extended halos of galaxies comprised of ``clouds'' with near-unity covering factor. The gaseous disks of spiral galaxies are known to extend to large radii and likely contribute a significant cross-section for absorption. We perform a Monte-Carlo survey of QSO fields in which the model galaxies have MgII absorbing ``clouds'' in a spherical halo or in a randomly oriented disk. For both geometries, models that recover the observed properties of MgII absorbers have only a 70-80% covering factor. Therefore, regardless of absorber geometry, a survey of randomly selected QSO fields should yield a non-negligible number of non-absorbing galaxies at small impact parameters. Very few have been observed (Steidel (1995)). However, selection effects are important, and once the observational procedures are applied to our model fields we find that this result is expected. Since both spherical halo and disk models can be made consistent with survey results, we present tests for discerning the geometric distribution of absorbing gas from Hubble Space Telescope images and high resolution spectra.

  3. Fibroblast growth factor receptor 1 is principally responsible for fibroblast growth factor 2-induced catabolic activities in human articular chondrocytes

    University of Cambridge - Dspace

    Yan, Dongyao; Chen, Di; Cool, Simon M.; van Wijnen, Andre J.; Mikecz, Katalin; Murphy, Gillian; Im, Hee-Jeong

    2011-08-11

    reporter gene assays were used to quantify the effects of FGF-2 and FGFR1 inhibitor on MMP-13 promoter activity. Results Chondrocyte proliferation was significantly enhanced in the presence of FGF-2 stimulation, which was inhibited by the pharmacological...

  4. LYNKS Series II Security Policy TITLE: LYNKS SERIES II

    Physics Websites

    LYNKS Series II Security Policy TITLE: LYNKS SERIES II SECURITY POLICY REVISION DOCUMENT NO: D15 550-160001-01 CHECKED AUTHORIZED: JYOUNG DATE: DATE: 05/08/2006 #12;LYNKS Series II Security Policy provided herein. Trademarks SPYRUS, the SPYRUS logos, LYNKS Privacy Card, Security In A Box, SPEX/, SPYCOS

  5. Introduction to Matlab II 1 MATLAB, part II

    Mathematics Websites

    Irwin, Mark E.

    Introduction to Matlab II 1 MATLAB, part II Simple data summaries ­ mean, variance, etc Built into Matlab are functions for simple data analysis. They include, mean, median, var, std (standard deviation to Matlab II 2 Now for some functions you do need to be a bit careful as the second argument may

  6. A developmental transition in growth control during zebrafish caudal fin development

    Biology and Medicine Websites

    Mullen, Sean P.

    . Environmental factors (e.g. nutrition, light, population density) profoundly impact the physiology of growthA developmental transition in growth control during zebrafish caudal fin development Matthew I revealed a critical transition in growth control during zebrafish caudal fin development, wherein a switch

  7. Negative correlation does not imply a tradeoff between growth and reproduction in California oaks

    Biology and Medicine Websites

    Thomas, David D.

    Negative correlation does not imply a tradeoff between growth and reproduction in California oaks between growth and reproduction, often inferred from an inverse correlation between these two variables or the result of confounding factors influencing growth and reproduction inde- pendently. Based on 13 years

  8. PFP: Parallel FP-Growth for Query Recommendation Google Beijing Research,

    Computer Technologies and Information Sciences Websites

    Chang, Edward Y.

    Applications] General Terms Algorithms, Experimentation, Human Factors, Performance Keywords Parallel FP-GrowthPFP: Parallel FP-Growth for Query Recommendation Haoyuan Li Google Beijing Research, Beijing propose to parallelize the FP-Growth algorithm (we call our parallel algorithm PFP) on distributed

  9. Scalable Sparse Matrix Techniques for Modeling Crack Growth ? Padma Raghavan1

    Computer Technologies and Information Sciences Websites

    Raghavan, Padma

    updating the factor to model crack growth. This section also contains an analysis of the computationalScalable Sparse Matrix Techniques for Modeling Crack Growth ? Padma Raghavan1 , Mark A. James2 such as the compact tension and middle crack tension specimens. Crack growth is modeled by monitoring analysis results

  10. Tag-recapture data are a useful source of information on the growth of animals.

    Environmental Sciences and Ecology Websites

    from tag-recapture data, as well as identify factors that may be important in determining the growth811 Tag-recapture data are a useful source of information on the growth of animals. The simplest form of analysis is to esti- mate an average growth rate, normally for a specific size range, from

  11. Growth in Gaussian Elimination for Weighing Matrices, W (n; n 1)

    Computer Technologies and Information Sciences Websites

    Seberry, Jennifer

    1)n 2 3: This leads us to conjecture that the growth factor for Gaussian elimination of com- pletelyGrowth in Gaussian Elimination for Weighing Matrices, W (n; n 1) C. Koukouvinos, M. Mitrouli y: Gaussian elimination, growth, complete pivoting, weighing matrices. AMS Subject Classi cation: 65F05, 65G05

  12. An Empirical Taxonomy of Start-Up Firms Growth Trajectories Mahamadou Biga Diambeidou (1, 3)

    Engineering Websites

    Verleysen, Michel

    resources played a pivotal role, diverse factors have been suggested as affecting growth. Some of them1 An Empirical Taxonomy of Start-Up Firms Growth Trajectories Mahamadou Biga Diambeidou (1, 3- 75634 Paris Cedex 13, France Introduction Over the past decades, new and small firm growth has received

  13. HARD CLAM, MERCENARIA MERCENARIA: SHELL GROWTH PATTERNS IN CHESAPEAKE BAyl,2

    Environmental Sciences and Ecology Websites

    and!or more frequent with increasing age and length of monitored growth periods. Both factorsHARD CLAM, MERCENARIA MERCENARIA: SHELL GROWTH PATTERNS IN CHESAPEAKE BAyl,2 LOWELL W. FRITZ to determine age. Distinct growth cessation marks caused by low winter water temperatures were present in some

  14. GROWTH IN PRODUCT REPLACEMENT GRAPHS OF GRIGORCHUK ANTON MALYSHEV AND IGOR PAK

    Mathematics Websites

    Pak, Igor

    of oscillating growth defined in [KP], have, by construction, some G as a subgroup or a factor group. Such groupsGROWTH IN PRODUCT REPLACEMENT GRAPHS OF GRIGORCHUK GROUPS ANTON MALYSHEV AND IGOR PAK Abstract corresponding to Nielsen moves. We prove the exponential growth of product replacement graphs k(G) of Grigorchuk

  15. On Factorization, Quark Counting, and Vector Dominance

    HEP - Phenomenology (arXiv)

    M. M. Block; F. Halzen; G. Pancheri

    2001-12-05

    Using an eikonal structure for the scattering amplitude, Block and Kaidalov have derived factorization theorems for nucleon-nucleon, $\\gamma p$ and $\\gamma\\gamma$ scattering at high energies, using only some very general assumptions. We present here an analysis giving experimental confirmation for factorization of cross sections, nuclear slope parameters B and $\\rho$-values (ratio of real to imaginary portion of forward scattering amplitudes), showing that: i) the three factorization theorems hold, ii) the additive quark model holds to ~1%, and iii) vector dominance holds to better than ~4%.

  16. ~]~ERSPECTIVES Almost all of the studies to date in which growth

    Biology and Medicine Websites

    Stern, Claudio

    ~]~ERSPECTIVES Almost all of the studies to date in which growth factors have been assessed with soluble growth factors. Nanogram per ml concentrations of activin, TGF-]32 and the FGFs can all cause some recog- nizing different cell types, or by RNase protection using probes such as cardiac muscle actin

  17. Commonality and variability in the structural attributes of moist temperate old-growth forests: A global review

    Multidisciplinary Databases and Resources Websites

    Vermont, University of

    and geographical descriptors. Our results suggest that all structural indicators vary across systems in relation) exploring global commonalities; (ii) investigating sources of variability among systems; and (iii to geographical, compositional, and climatic influences. However old- growth forests showed global commonalities

  18. AURA II: COMBININGNEGATIVETHINKINGAND BRANCHANDBOUNDINUNATECOVERINGPROBLEMS

    Energy Storage, Conversion and Utilization Websites

    Sangiovanni-Vincentelli, Alberto

    of the negative thinking paradigm in searching the solution space and propose aura II as the most efficient and operations research and is defined as: Given a Boolean matrix A (all entries are 0 or 1), with m rows is the cost of the i­th column), minimize the cost x T c = P n j=1 x j c j , over all x 2 f0; 1g n , subject

  19. Growth Kinetics of the Homogeneously Nucleated Water Droplets: Simulation Results

    Condensed Matter (arXiv)

    Anatolii V. Mokshin; Bulat N. Galimzyanov

    2012-12-05

    The growth of homogeneously nucleated droplets in water vapor at the fixed temperatures T=273, 283, 293, 303, 313, 323, 333, 343, 353, 363 and 373 K (the pressure $p=1$ atm.) is investigated on the basis of the coarse-grained molecular dynamics simulation data with the mW-model. The treatment of simulation results is performed by means of the statistical method within the mean-first-passage-time approach, where the reaction coordinate is associated with the largest droplet size. It is found that the water droplet growth is characterized by the next features: (i) the rescaled growth law is unified at all the considered temperatures and (ii) the droplet growth evolves with acceleration and follows the power law.

  20. Growth Kinetics of the Homogeneously Nucleated Water Droplets: Simulation Results

    CERN Preprints

    Mokshin, Anatolii V; 10.1088/1742-6596/394/1/012023

    2012-01-01

    The growth of homogeneously nucleated droplets in water vapor at the fixed temperatures T=273, 283, 293, 303, 313, 323, 333, 343, 353, 363 and 373 K (the pressure $p=1$ atm.) is investigated on the basis of the coarse-grained molecular dynamics simulation data with the mW-model. The treatment of simulation results is performed by means of the statistical method within the mean-first-passage-time approach, where the reaction coordinate is associated with the largest droplet size. It is found that the water droplet growth is characterized by the next features: (i) the rescaled growth law is unified at all the considered temperatures and (ii) the droplet growth evolves with acceleration and follows the power law.

  1. The aggregate analysis of logistics cost and total factor productivity

    MIT - DSpace

    Rasamit, Thanattaporn, 1978-

    2003-01-01

    The study surveys the relationship of logistics cost and total factor productivity (TFP). The paper discusses the theoretical aspect of TFP growth estimation and the concept of logistics cost as percentage of GDP as the ...

  2. INTERPOLATING RELATIVE HUMIDITY WEIGHTING FACTORS TO CALCULATE VISIBILITY IMPAIRMENT AND

    Geosciences Websites

    Fischer, Emily V.

    INTERPOLATING RELATIVE HUMIDITY WEIGHTING FACTORS TO CALCULATE VISIBILITY IMPAIRMENT ............................................................................................................................................ 2-33 3. CLASS I AREA CLUSTER ANALYSES BASED ON MONTHLY AVERAGE F(RH) VALUES....... 3-1 4. OUTLIERS. ......................................................................................................................................................B-2 #12;ii LIST OF FIGURES Figure 1-1. Weighting Factor Curve for the Hygroscopicity of Sulfates

  3. Expression levels of transcription factors in Escherichia coli: growth phase-and growth

    Environmental Sciences and Ecology Websites

    Dever, Jennifer A.

    of Frontier Bioscience, Hosei University, Koganei, Tokyo 185-8584, Japan 2 Research Institute of Micro-Nano Technology, Hosei University, Koganei, Tokyo 185-8584, Japan The expression pattern of the genome

  4. Probing Galaxy Formation with He II Cooling Lines

    Astrophysics (arXiv)

    Yujin Yang; Ann I. Zabludoff; Romeel Davé; Daniel J. Eisenstein; Philip A. Pinto; Neal Katz; David H. Weinberg; Elizabeth J. Barton

    2005-09-01

    Using high resolution cosmological simulations, we study hydrogen and helium gravitational cooling radiation. We focus on the HeII cooling lines, which arise from gas with a different temperature history (T_max ~ 10^5K) than HI line emitting gas. We examine whether three major atomic cooling lines, HI 1216A, HeII 1640A and HeII 304A are observable, finding that HI 1216A and HeII 1640A cooling emission at z=2-3 are potentially detectable with deep narrow band (R>100) imaging and/or spectroscopy from the ground. While the expected strength of HI 1216A cooling emission depends strongly on the treatment of the self-shielded phase of the IGM in the simulations, our predictions for the HeII 1640A line are more robust because the HeII 1640A emissivity is negligible below T~10^4.5 K and less sensitive to the UV background. Although HeII 1640A cooling emission is fainter than HI 1216A by at least a factor of 10 and, unlike HI 1216A, might not be resolved spatially with current observational facilities, it is more suitable to study gas accretion in the galaxy formation process because it is optically thin and less contaminated by the recombination lines from star-forming galaxies. The HeII 1640A line can be used to distinguish among mechanisms for powering the so-called "Lyman alpha blobs" -- including gravitational cooling radiation, photoionization by stellar populations, and starburst-driven superwinds -- because (1) HeII 1640A emission is limited to very low metallicity (log(Z/Z_sun) < -5.3) and Population III stars, and (2) the blob's kinematics are probed unambiguously through the HeII 1640A line width, which, for cooling radiation, is narrower (sigma < 400 km/s) than typical wind speeds.

  5. Nature Macmillan Publishers Ltd 1998 Aspecific genetic factor that strongly

    Environmental Sciences and Ecology Websites

    Kalinowski, Steven T

    compared with those homozygous for the `deletion' allele. The endocrine renin­angiotensin sys- tem is important in controlling the circula- tory system. Angiotensin-converting enzyme (ACE, or kininase II). In addition, local renin­angiotensin systems may influence tissue growth1 . A polymorphism of the human ACE

  6. [O II] as a tracer of current star formation

    Astrophysics (arXiv)

    Rolf A. Jansen; Marijn Franx; Daniel Fabricant

    2000-12-22

    [O II] lambda 3727 Angstrom is often used as a tracer of star formation at intermediate redshifts (z > 0.4), where Halpha is not easily observed. We use the spectrophotometric data of the Nearby Field Galaxy Survey to investigate the range and systematic variation in observed [O II]/Halpha emission line ratio as a function of galaxy luminosity at low redshift. We find that the observed [O II]/Halpha ratio varies by a factor of 7 at luminosities near M_B*. The [O II]/Halpha ratio is inversely correlated with luminosity. The scatter in the [O II]/Halpha ratio and the dependence of the ratio on luminosity are due in equal parts to reddening and to the metallicity dependent excitation of the ISM. The uncertainty in star formation rates derived from [O II] fluxes is therefore large. If Halpha cannot be observed, high S/N Hbeta fluxes are much preferable to [O II] fluxes for deriving star formation rates. We present several purely empirical corrections for extinction.

  7. Stereoselective Intramolecular 1,3 C-H Insertion in Rh(II) Carbene Reactions

    Chemistry Websites

    Wang, Jianbo

    Stereoselective Intramolecular 1,3 C-H Insertion in Rh(II) Carbene Reactions Weifeng Shi, Bo Zhang reaction pathway in the Rh(II)-mediated reaction of -tosyl r-diazo carbonyl compounds. Rh).1,2 The factors that govern the site selectivity of the C-H insertion include electronic, steric

  8. Optimization to manage supply chain disruptions using the NSGA-II

    Computer Technologies and Information Sciences Websites

    Coello, Carlos A. Coello

    Optimization to manage supply chain disruptions using the NSGA-II Víctor Serrano, Matías Alvarado and thus to recuperate the supply chain. Difficulty of this management is the diversity of factors words: disruption management, supply chain, optimization, NSGA-II 1. Supply chains and managing

  9. 3. Student Recruitment and Experience ii. Student Access and Support

    Biotechnology Websites

    Zandstra, Peter W.

    recognizes that access to a university education can be influenced by several factors including financial a student's prior secondary education and the requirements of first year university courses. Students of Arts and Science. Figure 3-ii-h Academic Bridging Program Enrolment The bars in the chart below

  10. 3. Student Recruitment and Experience ii. Student Access and Support

    Biotechnology Websites

    Zandstra, Peter W.

    recognizes that access to a university education can be influenced by several factors including financial a student's prior secondary education and the requirements of first year university courses. Students of Arts and Science. Figure 3-ii-h Academic Bridging Program Enrolment The table below indicates

  11. Type II Seesaw and the PAMELA/ATIC Signals

    HEP - Phenomenology (arXiv)

    Ilia Gogoladze; Nobuchika Okada; Qaisar Shafi

    2009-04-14

    We discuss how the cosmic ray signals reported by the PAMELA and ATIC/PPB-BETS experiments may be understood in a Standard Model (SM) framework supplemented by type II seesaw and a stable SM singlet scalar boson as dark matter. A particle physics explanation of the 'boost' factor can be provided by including an additional SM singlet scalar field.

  12. Molecular Cell TFIIH Phosphorylation of the Pol II CTD

    Biology and Medicine Websites

    (TBP) and general transcription factors to form a preinitiation complex (PIC) at core promoters. PIC- pressor complexes (Cyc8-Tup1 or Rpd3 histone deacetylase complex). PIC composition appears to be essentially identical at all yeast promoters (Rhee and Pugh, 2012). After PIC formation, Pol II initiates m

  13. DYNAMIC WEIGHT FUNCTIONS FOR A MOVING CRACK II. SHEAR LOADING

    Mathematics Websites

    Bath, University of

    DYNAMIC WEIGHT FUNCTIONS FOR A MOVING CRACK II. SHEAR LOADING A.B. Movchan 1 and J.R. Willis 2 1--infinite crack propagating with constant speed in an infinite isotropic elastic body. The use of Fourier intensity factors induced by a small time--dependent deviation from straight­ ness of the crack front

  14. December 2007(II): S244S252 Sleep and Inflammation

    Biology and Medicine Websites

    Pennsylvania, University of

    sleep duration and quality through good sleep habits and treatment of sleep disorders may reduce, C-reactive protein (CRP), sleep disorders, aging, interleukin (IL), tumor necrosis factor (TNFDecember 2007(II): S244­S252 Sleep and Inflammation Norah Simpson, MA, David F. Dinges, PhD Among

  15. 3. Student Recruitment and Experience ii. Student Access and Support

    Biotechnology Websites

    Zandstra, Peter W.

    3. Student Recruitment and Experience ii. Student Access and Support Figure g University of Toronto Performance Indicators 2010 Transitional Year Program (TYP) Performance Relevance: The University of Toronto recognizes that access to a university education can be influenced by several factors including financial

  16. 3. Student Recruitment and Experience ii. Student Access and Support

    Biotechnology Websites

    Zandstra, Peter W.

    3. Student Recruitment and Experience ii. Student Access and Support Figure g University of Toronto Performance Indicators 2011 Transitional Year Program (TYP) Performance Relevance: The University of Toronto recognizes that access to a university education can be influenced by several factors including financial

  17. Thursday, March 26, 2009 POSTER SESSION II: IRON METEORITES

    Physics Websites

    Rathbun, Julie A.

    Thursday, March 26, 2009 POSTER SESSION II: IRON METEORITES 6:30 p.m. Town Center Exhibit Area Yang J. Goldstein J. I. Michael J. R. Kotula P. G. Composition and Thermal History of the IVB Iron Meteorites [#1186] Cooling rates across IVB iron group vary more than a factor of six, which is against

  18. Painleve II in random matrix theory and related fields

    Mathematical Physics (arXiv)

    Peter J. Forrester; Nicholas S. Witte

    2012-10-11

    We review some occurrences of Painlev\\'e II transcendents in the study of two-dimensional Yang-Mills theory, fluctuation formulas for growth models, and as distribution functions within random matrix theory. We first discuss settings in which the parameter $\\alpha$ in the Painlev\\'e equation is zero, and the boundary condition is that of the Hasting-MacLeod solution. As well as expressions involving the Painlev\\'e transcendent itself, one encounters the sigma form of the Painlev\\'e II equation, and Lax pair equations in which the Painlev\\'e transcendent occurs as coefficients. We then consider settings which give rise to general $\\alpha$ Painlev\\'e II transcendents. In a particular random matrix setting, new results for the corresponding boundary conditions in the cases $\\alpha = \\pm 1/2$, 1 and 2 are presented.

  19. Master Transcription Factors Determine Cell-Type-Specific Responses to TGF-? Signaling

    MIT - DSpace

    Mullen, Alan C.

    Transforming growth factor beta (TGF-?) signaling, mediated through the transcription factors Smad2 and Smad3 (Smad2/3), directs different responses in different cell types. Here we report that Smad3 co-occupies the genome ...

  20. Why is GDP growth linear?

    CERN Preprints

    Becker, Jörg D

    2015-01-01

    In many European countries the growth of the real GDP per capita has been linear since 1950. An explanation for this linearity is still missing. We propose that in artificial intelligence we may find models for a linear growth of performance. We also discuss possible consequences of the fact that in systems with linear growth the percentage growth goes to zero.

  1. Original Article Composite growth model

    Biology and Medicine Websites

    Chung, Moo K.

    is that there is a period of rapid postnatal growth where about 80% of the adult size is achieved during early childhood pattern there is rapid postnatal growth. The growth achieved during this early childhood phase, however, is less than 40% of the adult size. This is then followed by a slower growth trend but only up to puberty

  2. I. Abstract II. Introduction

    Engineering Websites

    Psaltis, Demetri

    of the substrate on ZnO seed layer. (figure 4 a,b and c). Nanowires grow vertically and are c-directional oriented diffusion length and depletion width (300nm)). III. Aim 500 nm500 nm [0002] ZnO seed layer (a) (b) (c) (d) (e) (f) Figure 4. Hydrothermal growth of ZnO nanowires. (a) and (b) ZnO seed layer will be deposited

  3. Random Growth Models

    Mathematical Physics (arXiv)

    Patrik L. Ferrari; Herbert Spohn

    2010-03-13

    The link between a particular class of growth processes and random matrices was established in the now famous 1999 article of Baik, Deift, and Johansson on the length of the longest increasing subsequence of a random permutation. During the past ten years, this connection has been worked out in detail and led to an improved understanding of the large scale properties of one-dimensional growth models. The reader will find a commented list of references at the end. Our objective is to provide an introduction highlighting random matrices. From the outset it should be emphasized that this connection is fragile. Only certain aspects, and only for specific models, the growth process can be reexpressed in terms of partition functions also appearing in random matrix theory.

  4. The Calibration of the O/H Abundance Indicators for Extragalactic H II Regions Based on O II Recombination Lines

    Astrophysics (arXiv)

    M. Peimbert; A. Peimbert; C. Esteban; J. Garcia-Rojas; F. Bresolin; L. Carigi; M. T. Ruiz; A. R. Lopez-Sanchez

    2006-08-21

    Based on O II recombination lines we present a new calibration (called O II[RL]) of Pagel's O23 indicator to determine the O/H abundance ratio in extragalactic H II regions and emission line galaxies. The O II(RL) calibration produces O/H abundances about a factor of two higher than those derived from the T(4363) method with t2 = 0.00. The O II(RL) calibration has implications for the study of different properties of emission line galaxies such as their metallicity, star formation rate, and initial mass function. The O II(RL) calibration also affects the abundance determinations based on other O/H indicators, that include collisionally excited lines, like those known as O3N2, N2, S23, Ar3O3, and S3O3. We argue that the controversy between the T(4363) method and the photoionization models method to derive O/H values is mainly due to temperature variations inside the observed H II regions.

  5. Understanding Type II Supernovae

    Astrophysics (arXiv)

    L. Zampieri; M. Ramina; A. Pastorello

    2003-10-02

    We present the results of a systematic analysis of a group of Type II plateau supernovae that span a large range in luminosities, from faint objects like SN 1997D and 1999br to very luminous events like SN 1992am. The physical properties of the supernovae appear to be related to the plateau luminosity or the expansion velocity. The simultaneous analysis of the observed light curves, line velocities and continuum temperatures leads us to robust estimates of the physical parameters of the ejected envelope. We find strong correlations among several parameters. The implications of these results regarding the nature of the progenitor, the central remnant and the Ni yield are also addressed.

  6. Reveille II - 3 

    Texas A&M University - TxSpace

    Unknown

    2006-01-01

    the experiments was di- vided into two phases: (i) Simulation of rainfall events and obtaining the hydrographs of direct runoff; and (ii) character- ization of the transported sediments by runoff (e.g., temporal evolution and granulometry analysis). 2.1 Rainfall... Time - s So li d F l o w - g / s Downstream Upstream Static 2 % 7 % 14 % T r a n spo r t e d S e di m e nt ? g / s S u rf a ce R u n o f f ? m L / s Figure 4 Fig. 4. Comparison of runoff hydrographs and respective eroded material...

  7. Terrestrial Planet Formation I. The Transition from Oligarchic Growth to Chaotic Growth

    Astrophysics (arXiv)

    Scott J. Kenyon; Benjamin C. Bromley

    2005-11-17

    We use a hybrid, multiannulus, n-body-coagulation code to investigate the growth of km-sized planetesimals at 0.4-2 AU around a solar-type star. After a short runaway growth phase, protoplanets with masses of roughly 10^26 g and larger form throughout the grid. When (i) the mass in these `oligarchs' is roughly comparable to the mass in planetesimals and (ii) the surface density in oligarchs exceeds 2-3 g/sq cm at 1 AU, strong dynamical interactions among oligarchs produce a high merger rate which leads to the formation of several terrestrial planets. In disks with lower surface density, milder interactions produce several lower mass planets. In all disks, the planet formation timescale is roughly 10-100 Myr, similar to estimates derived from the cratering record and radiometric data.

  8. FACULTY LEGISLATION ACADEMIC MATTERS (pages II-100 through II-299)

    Plasma Physics and Fusion Websites

    Scharer, John E.

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-102 Grading System Policy services for students including classroom instruction, registration, advising and examining. The chancellor, registration, advising, examination, and official state holidays, the time remaining which

  9. FACULTY LEGISLATION RECORDS (pages II-500 through II-599)

    Plasma Physics and Fusion Websites

    Scharer, John E.

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-500 Departmental Personnel Records Policy of the Division of Archives has the working title of university archivist and is responsible for arranging

  10. Logistic Growth The logistic equation is a model of limited population growth. The exponential growth model

    Mathematics Websites

    Ikenaga, Bruce

    9­28­1998 Logistic Growth The logistic equation is a model of limited population growth and K grow almost exponentially at first. Growth slows as N nears the limiting population K. As t !1, N, and the carrying capacity of the cabinet is K = 10000. The population reaches its maximum growth rate in 4 days

  11. Fabrication of whispering gallery mode cavity using crystal growth

    CERN Preprints

    Kudo, Hiroshi; Kato, Takumi; Yokoo, Atsushi; Tanabe, Takasumi

    2013-01-01

    We developed a new method for fabricating crystalline whispering gallery mode cavities based on laser-heated pedestal growth. We fabricated sapphire cavities and obtained a Q factor of 16000 with a cavity whose diameter was about 240 um. We showed numerically that the cross-sectional shape of the cavity is sensitive to the cavity Q, and we controlled it successfully by changing the growth condition in the molten zone, without significantly degrading the crystal structure.

  12. Human Factors @ UB Fall 2011 Human Factors

    Engineering Websites

    Krovi, Venkat

    Human Factors @ UB Fall 2011 Human Factors Industrial and Systems Engineering University at Buffalo,3,277 - 293. For more information about Human Factors @UB contact Ann Bisantz at bisantz@buffalo.edu or see www.ise.buffalo.edu AHRQ funds research on patient tracking systems Ann Bisantz and Li Lin, UB ISE

  13. Power Factor Compensation (PFC) Power Factor Compensation

    Mathematics Websites

    Knobloch,Jürgen

    Power Factor Compensation (PFC) Power Factor Compensation The power factor (PF) is defined as the ratio between the active power and the apparent power of a system. If the current and voltage are periodic with period , and [ ), then the active power is defined by ( ) ( ) (their inner product

  14. Growth & Development / Parental Care

    Environmental Sciences and Ecology Websites

    Butler, Christopher J.

    Growth & Development / Parental Care #12;Embryonic Development Although the sequence of 42 stages Parental care Essential Minimal Nourishment Parents Self-feeding Egg size Ssmall (4-10%) Large (9-21%) Egg remain with parents for 1-2 years #12;Parental care involves substantial costs Most often both parents

  15. Modeling Growth LSystems &Mathematica

    Computer Technologies and Information Sciences Websites

    Jacob, Christian

    plants [Pru90]. Formal definition of L­systems Context­free L­systems D0L­systems (D0 means deterministic. The following growth process can be observed with various algae and especially in the blue­green bacteria

  16. HH II GG HH LL II GG HH TT SS 22 00 00 88 Materials Science

    Chemistry Websites

    Ihee, Hyotcherl

    HH II GG HH LL II GG HH TT SS 22 00 00 88 22 Materials Science EE SS RR FF Ultrafast X-ray solution- dimensional structural information #12;SS CC II EE NN TT II FF II CC HH II GG HH LL II GG HH TT SS 23AA LL II GG HH TT FF OO RR SS CC II EE NN CC EE from scattering data and this inverse problem can only

  17. Essays on the Effects of Foreign Direct Investment on Economic Growth and Welfare: The Case of Sub-Saharan Africa

    University of Kansas - KU ScholarWorks

    Kamara, Yusufu Unisa

    2014-05-31

    on domestic factors in the host countries, the first part of this study examines the role of four domestic factors - human capital, financial development, institutions and infrastructure - in facilitating the effects of FDI on growth in 44 SSA countries...

  18. Physical Chemistry II Spring 2007 Physical Chemistry II

    Chemistry Websites

    Physical Chemistry II Spring 2007 Physical Chemistry II Chem 390 Syllabus www.chem.cornell.edu/gse1 Chapter 19 Heat, work, and thermodynamic energy. The First Law and chemical reactions. III. Entropy. Entropy and spontaneity. Calculation and measurement of entropy changes. IV. Free energy and spontaneity

  19. CHUKCHI BORDERLAND CRUISE Arctic West -Phase II (AWS-02-II)

    Geosciences Websites

    Washington at Seattle, University of

    CHUKCHI BORDERLAND CRUISE CBL 2002 Arctic West - Phase II (AWS-02-II) USCGC Polar Star Cruise aboard the USCGC Polar Star has studied in depth the physical oceanography of the Chukchi Borderland profiles of temperature, conductivity, oxygen, and light scatter and L-ADCP profiles of water velocity

  20. Model of the expansion of H II region RCW 82

    CERN Preprints

    Krasnobaev, K V; Kotova, G Yu

    2014-01-01

    This paper aims to resolve the problem of formation of young objects observed in the RCW 82 H {\\small II} region. In the framework of a classical trigger model the estimated time of fragmentation is larger than the estimated age of the H {\\small II} region. Thus the young objects could not have formed during the dynamical evolution of the H {\\small II} region. We propose a new model that helps resolve this problem. This model suggests that the H {\\small II} region RCW 82 is embedded in a cloud of limited size that is denser than the surrounding interstellar medium. According to this model, when the ionization--shock front leaves the cloud it causes the formation of an accelerating dense gas shell. In the accelerated shell, the effects of the Rayleigh--Taylor (R-T) instability dominate and the characteristic time of the growth of perturbations with the observed magnitude of about 3 pc is 0.14 Myr, which is less than the estimated age of the H {\\small II} region. The total time $t_{\\sum}$, which is the sum of t...

  1. He II Proximity Effect and the Lifetime of Quasars

    CERN Preprints

    Khrykin, I S; McQuinn, M; Worseck, G

    2015-01-01

    The lifetime of quasars is fundamental for understanding the growth of supermassive black holes, and is an important ingredient in models of the reionization of the intergalactic medium. However, despite various attempts to determine quasar lifetimes, current estimates from a variety of methods are uncertain by orders of magnitude. This work combines cosmological hydrodynamical simulations and 1D radiative transfer to investigate the structure and evolution of the He II Ly$\\alpha$ proximity zones around quasars at $z \\simeq 3-4$. We show that the time evolution in the proximity zone can be described by a simple analytical model for the approach of the He II fraction $x_{\\rm HeII}\\left( t \\right)$ to ionization equilibrium, and use this picture to illustrate how the transmission profile depends on the quasar lifetime, quasar UV luminosity, and the ionization state of helium in the ambient IGM (i.e. the average He II fraction, or equivalently the metagalactic He II ionizing background). A significant degeneracy...

  2. Eco-Growth: A Framework for Sustainable Growth

    MIT - DSpace

    Blanco, Edgar E.

    Growth is imperative for corporate success and yet the environmental impact of this growth is not sustainable. In this paper we offer a framework for thinking about the stages of tackling the environmental sustainability ...

  3. Learning with matrix factorizations

    MIT - DSpace

    Srebro, Nathan, 1974-

    2004-01-01

    Matrices that can be factored into a product of two simpler matrices can serve as a useful and often natural model in the analysis of tabulated or high-dimensional data. Models based on matrix factorization (Factor Analysis, ...

  4. The Transcription Factor Encyclopedia

    University of California eScholarship Repository

    2012-01-01

    Transcription Factor Encyclopedia. Genome Biology 2012 13:Factor Encyclopedia. Gen- ome Biology 2012, 13:000. where ‘Biology 2012, 13:R24 http://genomebiology.com/2012/13/3/R24 SOFTWARE Open Access The Transcription Factor Encyclopedia

  5. The O II Recombination Line Abundance Problem in Planetary Nebulae

    Astrophysics (arXiv)

    D. R. Garnett; H. L. Dinerstein

    2001-04-09

    We present new observations of O II recombination lines in ten bright planetary nebulae, along with spatially-resolved measurements of O II and [O III] in the Ring nebula NGC 6720, to study the discrepancy between abundances derived from O II recombination lines and those derived from collisionally-excited [O III]. We see a large range in the difference between O II- and [O III] derived abundances, from no difference up to a factor six difference. The size of this discrepancy is anti-correlated with nebular surface brightness; compact, high-surface-brightness nebulae have the smallest discrepancies. O II levels that are populated mainly by dielectronic recombination give larger abundances than other levels. Finally, our long-slit observation of the Ring nebula shows that the O II emission peaks interior to the bright shell where [O III] and H-beta are strongest. Based on the observed correlations, we propose that the strong recombination line emission in planetary nebulae is a result of enhanced dielectronic recombination in hot gas in the nebular interior, perhaps driven by a hot stellar wind.

  6. Quasar H II Regions During Cosmic Reionization

    CERN Preprints

    Alvarez, M A; Alvarez, Marcelo A.; Abel, Tom

    2007-01-01

    Cosmic reionization progresses as H II regions form around sources of ionizing radiation. Their average size grows continuously until they percolate and complete reionization. We demonstrate how this typical growth can be calculated around the largest, biased sources of UV emission such as quasars by further developing an analytical model based on the excursion set formalism. This approach allows us to calculate the sizes and growth of the HII regions created by the progenitors of any dark matter halo of given mass and redshift with a minimum of free parameters. Statistical variations in the size of these pre-existing HII regions are an additional source of uncertainty in the determination of very high redshift quasar properties from their observed HII region sizes. We use this model to demonstrate that the transmission gaps seen in very high redshift quasars can be understood from the radiation of only their progenitors and associated clustered small galaxies. The fit requires the epoch of overlap to be at z...

  7. Plant Growth and Hormones 102 Plant Growth and Hormones

    Environmental Sciences and Ecology Websites

    Koptur, Suzanne

    Plant Growth and Hormones 102 Plant Growth and Hormones Because plants have so many repeating parts does your data compare to that of other groups in your lab? #12;Plant Growth and Hormones 103 Plant Hormones Hormones are chemical substances that are produced in one tissue and transported to another, where

  8. Nanoparticle growth Controlled Growth of Platinum Nanoparticles on Strontium

    Chemistry Websites

    Poeppelmeier, Kenneth R.

    Nanoparticle growth Controlled Growth of Platinum Nanoparticles on Strontium Titanate Nanocubes, dispersion, and chemical state of the Pt nanoparticles are controlled by the number of ALD growth cycles and Engineering Northwestern University Evanston, IL 60208-3108 (USA) E-mail: bedzyk@northwestern.edu Dr. J. W

  9. Geometry of Valley Growth

    CERN Preprints

    Petroff, Alexander P; Abrams, Daniel M; Lobkovsky, Alexander E; Kudrolli, Arshad; Rothman, Daniel H

    2011-01-01

    Although amphitheater-shaped valley heads can be cut by groundwater flows emerging from springs, recent geological evidence suggests that other processes may also produce similar features, thus confounding the interpretations of such valley heads on Earth and Mars. To better understand the origin of this topographic form we combine field observations, laboratory experiments, analysis of a high-resolution topographic map, and mathematical theory to quantitatively characterize a class of physical phenomena that produce amphitheater-shaped heads. The resulting geometric growth equation accurately predicts the shape of decimeter-wide channels in laboratory experiments, 100-meter wide valleys in Florida and Idaho, and kilometer wide valleys on Mars. We find that whenever the processes shaping a landscape favor the growth of sharply protruding features, channels develop amphitheater-shaped heads with an aspect ratio of pi.

  10. Packing-Limited Growth

    Condensed Matter (arXiv)

    Peter Sheridan Dodds; Joshua S. Weitz

    2002-04-12

    We consider growing spheres seeded by random injection in time and space. Growth stops when two spheres meet leading eventually to a jammed state. We study the statistics of growth limited by packing theoretically in d dimensions and via simulation in d=2, 3, and 4. We show how a broad class of such models exhibit distributions of sphere radii with a universal exponent. We construct a scaling theory that relates the fractal structure of these models to the decay of their pore space, a theory that we confirm via numerical simulations. The scaling theory also predicts an upper bound for the universal exponent and is in exact agreement with numerical results for d=4.

  11. sessions II and High School

    Environmental Sciences and Ecology Websites

    Walker, Lawrence R.

    semester Summer sessions II and III High School if required Summer prior to freshman year if required; MATH 127 Precalculus I Math Placement Testing ACT 25 SAT 560 MPT 26 MATH 181 Calculus I Math Placement Testing ACT 28 SAT 630 No MPT MATH 182 Calculus II recommended Math AP AB 3-5 CHEM 121 General Chemistry I

  12. 5) Management ii) Mechanical methods

    Environmental Sciences and Ecology Websites

    Nowak, Robert S.

    follow-up treatments · Inadvertent damage #12;5) Management c) Control ii) Mechanical methods (1) Weeding (1) Weeding · Effective: annuals, tap-rooted plants, some woody plants · Not effective: perennials with rhizomes #12;5) Management c) Control ii) Mechanical methods (1) Weeding · Effective: annuals, tap

  13. Sist. Lin. II Aps Escalonamento

    Materials Science Websites

    Cabral, Marco

    Lineares ­ 2a Parte Paulo Goldfeld Marco Cabral Departamento de Matemática Aplicada Universidade Federal do Rio de Janeiro Álgebra Linear II 2008/2 Prof. Marco Cabral & Prof. Paulo Goldfeld DMA / IM / UFRJ 1 conjunto-solução = { } sistema inconsistente Álgebra Linear II 2008/2 Prof. Marco Cabral & Prof. Paulo

  14. QUANTUM MECHANICS II Physics 342

    Physics Websites

    Rosner, Jonathan L.

    QUANTUM MECHANICS II Physics 342 KPTC 103 9:00 ­ 10:20 a.m. 1 Tues., Thurs. ­ Winter Quarter 2011 quantum mechanics at the graduate level. The text for Quantum Mechanics II will be J. J. Sakurai and Jim Napolitano, Modern Quantum Mechanics, Second Edition (Addison-Wesley, San Francisco, 2011). For supplemental

  15. sessions II and High School

    Environmental Sciences and Ecology Websites

    Walker, Lawrence R.

    Chemistry If placement is MATH 126 or below, take in same semester as MATH 126 PHYS 151 General Physics I Testing ACT 28 SAT 630 No MPT MATH 182 Calculus II recommended Math AP AB 3-5 CHEM 121 General Chemistry I CHEM AP 3 Lab required @ UNLV; contact Chemistry CHEM 122 General Chemistry II CHEM AP 4-5 Lab required

  16. sessions II and High School

    Environmental Sciences and Ecology Websites

    Walker, Lawrence R.

    Chemistry I If CHEM AP 3 Lab required @ UNLV; contact Chemistry CHEM 122 General Chemistry II If CHEM AP 4-5 Lab required @ UNLV; contact Chemistry CHEM 241 Organic Chemistry I CHEM 242 Organic Chemistry II CHEM 103 Preparatory Chemistry If placement is MATH 126 or below, take in same semester as MATH 126 PHYS

  17. Laws of Population Growth

    CERN Preprints

    Rozenfeld, Hernan D; Andrade, Jose S; Batty, Michael; Stanley, H Eugene; Makse, Hernan A

    2008-01-01

    An important issue in the study of cities is defining a metropolitan area, as different definitions affect the statistical distribution of urban activity. A commonly employed method of defining a metropolitan area is the Metropolitan Statistical Areas (MSA), based on rules attempting to capture the notion of city as a functional economic region, and is constructed using experience. The MSA is time-consuming and is typically constructed only for a subset (few hundreds) of the most highly populated cities. Here, we introduce a new method to designate metropolitan areas, denoted the "City Clustering Algorithm" (CCA). The CCA is based on spatial distributions of the population at a fine geographic scale, defining a city beyond the scope of its administrative boundaries. We use the CCA to examine Gibrat's law of proportional growth, postulating that the mean and standard deviation of the growth rate of cities are constant, independent of city size. We find that the mean growth rate of a cluster utilizing the CCA e...

  18. Bubble growth rates in boiling

    MIT - DSpace

    Griffith, P.

    1956-01-01

    The conditions determining the growth rate of a bubble on a surface in boiling are considered and a mathematical model framed in the light of these conditions. The growth rate is then calculated for bubbles growing under ...

  19. Controlling nanowire growth by light

    University of Cambridge - Dspace

    di Martino, G.; Michaelis, F. B.; Salmon, A. R.; Hofmann, S.; Baumberg, J. J.

    2015-10-26

    Individual Au catalyst nanoparticles are used for selective laser-induced chemical vapor deposition of single germanium nanowires. Dark-field scattering reveals in real time the optical signatures of all key constituent growth processes. Growth...

  20. Emittance growth in linear induction accelerators

    CERN Preprints

    Ekdahl, C A; Schulze, M E; Carlson, C A; Frayer, D K; Mostrum, C; Thoma, C H

    2014-01-01

    The Dual-Axis Radiographic Hydrotest (DARHT) facility uses bremsstrahlung radiation source spots produced by the focused electron beams from two linear induction accelerators (LIAs) to radiograph large hydrodynamic experiments driven by high explosives. Radiographic resolution is determined by the size of the source spot, and beam emittance is the ultimate limitation to spot size. On the DARHT Axis-II LIA we measure an emittance higher than predicted by theoretical simulations, and even though this axis produces sub-millimeter source spots, we are exploring ways to improve the emittance. Some of the possible causes for the discrepancy have been investigated using particle-in-cell (PIC) codes, although most of these are discounted based on beam measurements. The most likely source of emittance growth is a mismatch of the beam to the magnetic transport, which can cause beam halo.

  1. Balanced Category Theory II

    CERN Preprints

    Pisani, Claudio

    2009-01-01

    In the first part, we further advance the study of category theory in a strong balanced factorization category C [Pisani, 2008], a finitely complete category endowed with two reciprocally stable factorization systems such that X \\to 1 is in M iff it is in M'. In particular some aspects related to "internal" (co)limits and to Cauchy completeness are considered. In the second part, we maintain that also some aspects of topology can be effectively synthesized in a (weak) balanced factorization category T, whose objects should be considered as possibly "infinitesimal" and suitably "regular" topological spaces. While in C the classes M and M' play the role of discrete fibrations and opfibrations, in T they play the role of local homeomorphisms and perfect maps, so that X\\to 1 is in M (resp. M') iff it is a discrete (resp. compact) space. One so gets a direct abstract link between the subjects, with mutual benefits. For example, the slice projection X/x \\to X and the coslice projection x\\X \\to X, obtained as the se...

  2. Multiscale Modelling of Vascular Tumour Growth in 3D: The Roles of Domain Size and Boundary Conditions

    Mathematics Websites

    Maini, Philip K.

    Multiscale Modelling of Vascular Tumour Growth in 3D: The Roles of Domain Size and Boundary Abstract We investigate a three-dimensional multiscale model of vascular tumour growth, which couples blood flow, angiogenesis, vascular remodelling, nutrient/growth factor transport, movement of

  3. Induced Growth of Asymmetric Nanocantilever Arrays on Polar Surfaces Z. L. Wang,1,* X.Y. Kong,1

    Materials Science Websites

    Wang, Zhong L.

    termination are impor- tant factors for determining the growth of nanocantilever arrays. The ZnInduced Growth of Asymmetric Nanocantilever Arrays on Polar Surfaces Z. L. Wang,1,* X.Y. Kong,1 in the growth of nanocantilever arrays. Longer and wider ``comblike'' nanocantilever arrays are grown from

  4. Neuron, Vol. 34, 9991010, June 13, 2002, Copyright 2002 by Cell Press Calcium Regulation of Dendritic Growth

    Biology and Medicine Websites

    Ghosh, Anirvan

    the transcription factor CREB, and expres- if neuronal activity influences dendritic growth by induc of Dendritic Growth via CaM Kinase IV and CREB-Mediated Transcription et al., 1997; Benes et al., 1977; DeitchWe report that CaM kinase IV and CREB play a critical dendritic growth, synaptic currents are principally

  5. Journal of Crystal Growth 278 (2005) 342345 Regrowth dynamics of InAs quantum dots on the GaAs

    Physics Websites

    Cao, Hui

    2005-01-01

    Journal of Crystal Growth 278 (2005) 342­345 Regrowth dynamics of InAs quantum dots on the Ga growth near the lithographic edge is high. Under controlled growth conditions, quantum dots appear only to the quantum dots formation, as well as geometrical factors, such as the lateral size of the mesa

  6. Stressmodulated growth D. Ambrosi1

    Mathematics Websites

    Ceragioli, Francesca

    Stress­modulated growth D. Ambrosi1 , F. Guana2 1 Dipartimento di Matematica, Politecnico di Torino the stress field plays such a relevant role that "stress­modulated growth" has become a very topical subject, a component of the stress-growth coupling is tissue­independent and reads as an Eshelby­like tensor

  7. Investigation into Early growth response 1 in colorectal disease: a study of EGR1 expression in colorectal tissue and novel protein interactions in cancer cells 

    Edinburgh, University of - Research Archive

    Gernon, Grainne Mary

    2012-11-30

    Introduction: Early growth response 1 (EGR1) is a zinc-finger transcription factor involved in the regulation of cell growth. It can act as either a tumour suppressor or a tumour promoter with a role in the induction of ...

  8. A Dendroecological Evaluation of the Effects of Coal Ash on Tree Growth, Kingston Fossil Plant, Harriman, Tennessee, U.S.A.

    Environmental Sciences and Ecology Websites

    Grissino-Mayer, Henri D.

    , Dorothy Rosene, Alex Dye, Sarah Jones, Chris Petruccelli, and Maria Owens. Their thoughtful discussions differences between natural and human-related factors on tree growth. Radial growth of trees in one year

  9. II. 1d elastic models curve II.1 Introduction

    Computer Technologies and Information Sciences Websites

    Amit, Yali

    Finite expansion: fl j (t; ` j ) = d X k=1 ` j;k / k (t) (II.3) for j = 1; 2. ffl Penalty: E(`) = ff X k expansion: @D @` 1;k = Z 1 0 ` G out (fl(t; `)) \\Gamma G in (fl(t; `)) ' â?? fl 2 / k (t)dt (II.6) @D @` 2;k = Z 1 0 ` G in (fl(t; `)) \\Gamma G out (fl(t; `)) ' â?? fl 1 / k (t)dt: (II.7) ffl @D @` 1;k ; k = 1

  10. FeII/MgII Emission Line Ratios of QSOs. II. z>6 Objects

    Astrophysics (arXiv)

    F. Iwamuro; M. Kimura; S. Eto; T. Maihara; K. Motohara; Y. Yoshii; M. Doi

    2004-08-27

    Near-infrared spectra of four QSOs located at $z>6$ are obtained with the OH-airglow suppressor mounted on the Subaru telescope. The FeII/MgII emission-line ratios of these QSOs are examined by the same fitting algorithm as in our previous study of $z<5.3$ QSOs. The fitting results show that two out of the four $z>6$ QSOs have significant FeII emission in their rest-UV spectra, while the other two have almost no FeII features. We also applied our fitting algorithm to more than 10,000 SDSS QSOs and found two trends in the distribution of FeII/MgII against redshift: (1) the upper envelope of the FeII/MgII distribution at $z>3$ shows a probable declination toward high redshift, and (2) the median distribution settles into lower ratios at $z\\sim 1.5$ with small scatter compared to the other redshift. We discuss an Fe/Mg abundance evolution of QSOs with a substantial contribution from the diverse nature of the broad-line regions in high-redshift QSOs.

  11. Marco ao ra aoor Dii i ii Dii i i

    Computer Technologies and Information Sciences Websites

    Baioletti, Marco

    A Marco ao ra aoor Dii i ii Dii i i i i i i i i i i i ii i i ii A E E E 1 1 n n i i i i i i i i i i ii i i i i i ii i i i i i i i i i i i i i i ii i i i i i ii i i i i i i ii i ii i i ii i i E i i i i i E i i i i i i ii ii E i i i ii i i i i i ii i ii i i ii ii ii i i ii i i ii ii ii i i A A i i i ii

  12. Human Factors @ UB Fall 2010 Human Factors

    Engineering Websites

    Krovi, Venkat

    back injuries. Workers in agriculture and construction industries often maintain stooped posturesHuman Factors @ UB Fall 2010 Human Factors Industrial and Systems Engineering University at Buffalo indicated that workers frequently report low back pain or in- juries after repetitive exposures

  13. Human Factors @ UB Fall 2014 Human Factors

    Engineering Websites

    Krovi, Venkat

    Human Factors @ UB Fall 2014 Human Factors Industrial and Systems Engineering University at Buffalo(5), 561-575. Department of Industrial and Systems Engineering 342 Bell Hall University at Buffalo. Cavuoto, LA & Nussbaum, MA (2014) Influences of obesity on job demands and worker capacity. Current

  14. Transition frequency shifts with fine-structure-constant variation for Fe II: Breit and core-valence correlation corrections

    Physics Websites

    Titov, Anatoly

    - fined as follows: = lab + qx, x / lab 2 - 1. 1 Generally, q factors may have different signs and scale frequencies on 2 q factors for Fe II ion. We found corrections to these coefficients from valence- valence corrections to the q factors appeared to be larger than had been anticipated previously. Nevertheless our

  15. Growth of massive black holes by super-Eddington accretion

    Astrophysics (arXiv)

    T. Kawaguchi; K. Aoki; K. Ohta; S. Collin

    2004-05-05

    Narrow-Line Seyfert 1 galaxies (NLS1s) and Narrow-Line quasars (NLQs) seem to amount to ~ 10-30 % of active galactic nuclei (AGNs) in the local universe. Together with their average accretion rate, we argue that the black hole (BH) growth by factor of 8-800 happens in these super-Eddington accretion phase of AGNs. Moreover, there is a possible, systematic underestimation of accretion rates (in the Eddington unit) due to an overestimation of BH mass by massive accretion discs for super-Eddington objects. If it is true, the factor of BH growth above may be larger by order(s) of magnitude. In contrast, the growth factor expected in sub-Eddington phase is only ~ 2. Therefore, the cosmic BH growth by accretion is likely dominated by super-Eddington phase, rather than sub-Eddington phase which is the majority among AGNs. This analysis is based on the fraction and the average accretion rate of NLS1s and NLQs obtained for z ~< 0.5. If those numbers are larger at higher redshift (where BHs were probably less grown), super-Eddington accretion would be even more important in the context of cosmic BH growth history.

  16. Growth and Scaling in Anisotropic Spinodal Decomposition

    Condensed Matter (arXiv)

    Pablo I. Hurtado; J. Marro; E. V. Albano

    2002-09-13

    We studied phase separation in a particle interacting system under a large drive along x. We here identify the basic growth mechanisms, and demonstrate time self-similarity, finite-size scaling, as well as other interesting features of both the structure factor and the scaling function. We also show that, at late t in two dimensions, there is a unique t-dependent length increasing l_y(t) \\sim t^{1/3} for macroscopic systems. Our results, which follow as a direct consequence of the underlying anisotropy, may characterize a class of nonequilibrium situations.

  17. Growth-optimal portfolios under transaction costs

    CERN Preprints

    Palczewski, Jan

    2007-01-01

    This paper studies a portfolio optimization problem in a discrete-time Markovian model of a financial market, in which asset price dynamics depend on an external process of economic factors. There are transaction costs with a structure that covers, in particular, the case of fixed plus proportional costs. We prove that there exists a self-financing trading strategy maximizing the average growth rate of the portfolio wealth. We show that this strategy has a Markovian form. Our result is obtained by large deviations estimates on empirical measures of the price process and by a generalization of the vanishing discount method to discontinuous transition operators.

  18. Testing Models of Radio Galaxy Evolution and the Cosmological Impact of FR II Radio Galaxies

    Astrophysics (arXiv)

    Paramita Barai; Paul J. Wiita

    2006-11-21

    We investigate aspects of the cosmological evolution of FR II radio galaxies, focusing first on the abilities of models to match data for linear-sizes, radio powers, redshifts and spectral indices. Here we consider modifications to the theoretical models we had treated earlier, primarily by accounting for the growth of the radius of hotspots with source size. Better fits to the distributions of most of the data in three low-frequency surveys can be found with sensible choices of model parameters but no model yet considered gives a good match to all of the survey data simultaneously, nor does any do a good job of producing the spectral index distributions. The observational datasets are too small to completely discriminate among the models. We calculate the volume fraction of the ``relevant universe'' cumulatively occupied by the expanding radio galaxy lobes over the quasar era, when these powerful radio galaxies were much more common, and when they have been argued to play an important role in triggering galaxy formation and spreading magnetic fields and metals. We found the cumulative relevant volume filling factor of radio galaxies to be $\\sim 5 %$, so we conclude that these impacts are smaller than previously estimated but that they are still significant.

  19. Fast simulation for ATLAS: Atlfast-II and ISF

    CERN Preprints

    Lukas, W; The ATLAS collaboration

    2012-01-01

    We present the ATLAS simulation packages ATLFAST-II and ISF. Atlfast-II is a sophisticated fast parametrized simulation in the Calorimeter system in combination with full Geant4 simulation precision in the Inner Detector and Muon Systems. This combination offers a relative increase in speed of around a factor of ten compared to the standard ATLAS detector simulation and is being used to supplement the ATLAS MC needs for 2011. The design of the parametrized simulation components allows for a flexible tuning of the simulated detector response to direct measurements with the ATLAS detector in order to increase the overall simulation quality. Hence the tuned fast simulation approach promises to be usable for the production of large MC samples needed for new physics searches as well as precision measurements. The newly developed highly configurable ATLAS Integrated Simulation Framework (ISF) extends Atlfast-II by fast inner detector and muon system simulation. Furthermore, depending on the required accuracy, diffe...

  20. SEMIGROUPS OF VALUATIONS ON LOCAL RINGS, II STEVEN DALE CUTKOSKY, BERNARD TEISSIER

    Mathematics Websites

    Cutkosky, Dale

    SEMIGROUPS OF VALUATIONS ON LOCAL RINGS, II STEVEN DALE CUTKOSKY, BERNARD TEISSIER Abstract. Given a noetherian local domain R and a valuation of its field of fractions which is non negative on R, we derive some very general bounds on the growth of the number of distinct valuation ideals of R corresponding

  1. Deep-Sea Research II 52 (2005) 757780 Linking oceanic food webs to coastal production and

    Geosciences Websites

    2005-01-01

    Deep-Sea Research II 52 (2005) 757­780 Linking oceanic food webs to coastal production and growth (NEMURO), a food web model (Ecopath/Ecosim), and a bioenergetics model for pink salmon (Oncorhynchus web productive potential for Pacific salmon feeding and growing in the Alaskan subarctic gyre

  2. Deep-Sea Research II 47 (2000) 3249}3272 Microzooplankton herbivory in the

    Biology and Medicine Websites

    Caron, David

    2000-01-01

    Deep-Sea Research II 47 (2000) 3249}3272 Microzooplankton herbivory in the Ross Sea, Antarctica incubated in the dark (i.e. grazing in the absence of phytoplankton growth). Strong seasonal cycles incubations in the dark agreed quite well with the results of the dilution experiments performed at the same

  3. 8. SQL II 8-1 Part 8: SQL II

    Computer Technologies and Information Sciences Websites

    Brass, Stefan

    · · · EXERCISES CAT ENO TOPIC MAXPT H 1 Rel. Algeb. 10 H 2 SQL 10 M 1 SQL 14 RESULTS SID CAT ENO POINTS 101 H 1 10 Universit¨at Halle, 2004 #12;8. SQL II 8-5 Nonmonotonic Behaviour (1) · SQL queries using only: Datenbanken I Universit¨at Halle, 2004 #12;8. SQL II 8-6 Nonmonotonic Behaviour (2) · In the natural language

  4. -.-I--.-.-____--___-.I_.__.. ____)_-I------I__----._---~ .---.------.-..-----IA Science Service Feature

    Environmental Sciences and Ecology Websites

    I -_t --* -.-I--.-.-____--___-.I_.__.. ____)_-I------I__----._--- ~ .---.------.-..----- IA Science?oses no quantitative definitions zre needed for such ex- 2ressions as "rainy dw,rl Ifdry s:?eLl,If lldrou&t,ll etc,, but such definitions are useful i n connection with forilia1 weather s t a t i s t i c s . I n the records p b l i s h

  5. Phase II Planning for Niall Gaffney

    Chemistry Websites

    Phase II Planning for the HET Niall Gaffney March 6, 1997 #12; #12; Phase II Planning for the HET 3 ................................................................................................................................. 38 Plan Templates .............................................................................................................................................. 47 Example Plans

  6. Phase II Planning for Niall Gaffney

    Chemistry Websites

    Phase II Planning for the HET Niall Gaffney March 6, 1997 #12;#12;Phase II Planning for the HET 3 ................................................................................................................................. 38 Plan Templates .............................................................................................................................................. 47 Example Plans

  7. Keys for growth in Japan's mature mobile market

    MIT - DSpace

    Oto, Hiroyuki

    2005-01-01

    The objective of this thesis is to identify key factors that will produce further growth for NTT DoCoMo in Japan's mature mobile market. Since the early 1990s, the mobile phone market in Japan has grown rapidly, and ...

  8. Dependence of Striped Domain Growth on Background Wavenumber

    Condensed Matter (arXiv)

    Carina Kamaga; Denis Funfschilling; Michael Dennin

    2003-04-29

    We report on the growth of domains of standing waves in electroconvection in a nematic liquid crystal. An ac voltage is applied to the system, forming an initial state that consists of travelling striped patterns with two different wavenumbers, zig and zag rolls. The standing waves are generated by suddenly applying a periodic modulation of the amplitude of the applied voltage that is approximately resonant with the travelling frequency of the pattern. By varying the modulation frequency, we are able to vary the steady-state, average wavenumber. We characterize the growth by measuring the structure factor for the pattern, the amplitude of the pattern, and the domain-wall length. An interesting feature of the growth is that the evolution of the domain-wall length is strongly affected by changing the selected wavenumber; whereas, the evolution of the structure factor is less sensitive to such changes.

  9. The Growth of Structure in Interacting Dark Energy Models

    CERN Preprints

    Caldera-Cabral, Gabriela; Schaefer, Bjoern Malte

    2009-01-01

    If dark energy interacts with dark matter, there is a change in the background evolution of the universe, since the dark matter density no longer evolves as a^{-3}. In addition, the non-gravitational interaction affects the growth of structure. In principle, these changes allow us to detect and constrain an interaction in the dark sector. Here we investigate the growth factor and the weak lensing signal for a class of interacting dark energy models. In these models, the interaction is determined by a linear combination of the dark sector densities, with constant energy transfer rates. Assuming a normalization to today's values of dark matter density and overdensity, the signal of the interaction is an enhancement (suppression) of both the growth factor and the lensing power, when the energy transfer in the background is from dark matter to dark energy (dark energy to dark matter).

  10. Please cite this article in press as: Mohammat, A., et al., Drought and spring cooling induced recent decrease in vegetation growth in Inner Asia. Agric. Forest Meteorol. (2012), http://dx.doi.org/10.1016/j.agrformet.2012.09.014

    Geosciences Websites

    Myneni, Ranga B.

    2012-01-01

    scale (P factor for spring vegetation growth recent decrease in vegetation growth in Inner Asia. Agric. Forest Meteorol. (2012), http://dx.doi.org/10 decrease in vegetation growth in Inner Asia Anwar Mohammata , Xuhui Wangb , Xiangtao Xub , Liqing Pengb

  11. Thermodynamics of firms' growth

    CERN Preprints

    Zambrano, Eduardo; Fernandez-Bariviera, Aurelio; Hernando, Ricardo; Plastino, Angelo

    2015-01-01

    The distribution of firms' growth and firms' sizes is a topic under intense scrutiny. In this paper we show that a thermodynamic model based on the Maximum Entropy Principle, with dynamical prior information, can be constructed that adequately describes the dynamics and distribution of firms' growth. Our theoretical framework is tested against a comprehensive data-base of Spanish firms, which covers to a very large extent Spain's economic activity with a total of 1,155,142 firms evolving along a full decade. We show that the empirical exponent of Pareto's law, a rule often observed in the rank distribution of large-size firms, is explained by the capacity of the economic system for creating/destroying firms, and can be used to measure the health of a capitalist-based economy. Indeed, our model predicts that when the exponent is larger that 1, creation of firms is favored; when it is smaller that 1, destruction of firms is favored instead; and when it equals 1 (matching Zipf's law), the system is in a full mac...

  12. Dark matter growth and baryon bias in an accelerating universe

    HEP - Phenomenology (arXiv)

    Seokcheon Lee

    2009-07-03

    We investigate the exact analytic solutions for the growths of the dark matter and the baryon in sub-horizon scale. The growth of the dark matter $\\delta_{\\DM}$ is related to that of the halos. Thus, the exact solution for the growth of the dark matter is important to obtain the proper properties of dark matter halos. However, the dark energy model dependence of $\\delta_{\\DM}$ is confused with the $\\delta_{\\DM}$ dependence on $\\Omega_{m}^{0}$. Thus, the careful investigation is necessary for the $\\delta_{\\DM}$ dependence on dark energy models. We also obtain the exact solution of the growth of the baryon $\\delta_{\\B}$ which can be used to obtain the baryon bias factor $b(a)$. This might be able to be observed in intracluster gas or in Lyman-$\\alpha$ clouds. However, $b(a)$ is quite model independent. Recently, we obtained the exact analytic solution for the growing mode solution of the matter linear density perturbation $\\delta$ on sub-horizon scale for general dark energy model \\cite{SK}. This solution is not same as the well known approximate analytic solution \\cite{Waga}. The exact analytic solution shows the same evolution behavior of the growth factor obtained numerically. However, the exact solution is simple and useful for the extension to other models including modified gravity theories. Furthermore, it guides to the fact that the growth index parameter depends on both models $\\omega_{\\de}$ and $\\Omega_{m}^{0}$ and thus we need to be careful for applying the fitting formulae to the general models \\cite{WS}. The exact analytic solutions for the growth factor will provide the more accurate tools for the weak lensing, the number density of clusters, their mass and etc.

  13. II Zwicky 23 and Family

    Astrophysics (arXiv)

    Elizabeth H. Wehner; John S. Gallagher; Gwen C. Rudie; Philip J. Cigan

    2006-03-12

    II Zwicky 23 (UGC 3179) is a luminous, nearby compact narrow emission line starburst galaxy with blue optical colors and strong emission lines. We present a photometric and morphological study of II Zw 23 and its interacting companions using data obtained with the WIYN 3.5-m telescope in Kitt Peak, Arizona. II Zwicky 23 has a highly disturbed outer structure with long trails of debris that may be feeding tidal dwarfs. Its central regions appear disky, a structure that is consistent with the overall rotation pattern observed in the H-alpha velocity field measured from Densepak observations obtained with WIYN. We discuss the structure of II Zwicky 23 and its set of companions and possible scenarios of debris formation in this system.

  14. Elektronik-Praktikum Versuchsanleitung II

    Physics Websites

    Potsdam, Universität

    Elektronik-Praktikum Versuchsanleitung II Aufgaben 1. Programmierung mittels LabView zur Messung. Programmierung mittels LabView zur Messung der Impedanz einer RC-Kombination Programmieren Sie mittels LabView

  15. TABLE OF CONTENTS ACKNOWLEDGEMENTS ......................................................................................... ii

    Environmental Sciences and Ecology Websites

    Lawrence, Deborah

    .................................................... 16 Chapter II: THE INFLUENCE OF ENVIRONMENT AND LITTER QUALITY ON ROOT DECOMPOSITION DYNAMICS and carbon dynamics during belowground decomposition........................................... 54 Chapter III: THE INFLUENCE OF NITROGEN AVAILABILITY ON ROOT DECOMPOSITION DYNAMICS

  16. Infancy and childhood growth and physical activity in adolescence: prospective birth cohort study from Brazil

    University of Cambridge - Dspace

    Hallal, Pedro C.; Dumith, Samuel C.; Ekelund, Ulf; Reichert, Felipe F.; Menezes, Ana M. B.; Victora, Cesar G.; Wells, Jonathan C. K.

    2012-07-02

    in infancy. These findings suggest that PA may partially be sensitive to early hormonal programming, or that genetic factors may affect both early growth and later metabolism or predisposition for PA....

  17. Bacterial growth in the plant apoplast is limited by nutrient availability

    University of California eScholarship Repository

    RAMOS, MARIA EUGENIA

    2010-01-01

    host plant from saprophytic to pathogenic; but bacteria arepathogenic bacteria We also estimated bacterial population sizes in plantspathogenic bacteria might be limited in growth in the apoplast by factors other than plant

  18. The role of E2F4 in the growth suppressive properties of the retinoblastoma protein

    MIT - DSpace

    Lee, Eunice Y. (Eunice Yoon)

    2005-01-01

    The growth suppressive functions of the retinoblastoma protein (pRB), the first identified tumor suppressor, are considerably mediated through the repression of the E2F transcription factors. Functional inactivation of ...

  19. Effect of oxygen potential on high temperature crack growth in alloy 617

    MIT - DSpace

    Benz, Julian K

    2009-01-01

    The effect of oxygen partial pressure on crack growth rates in Alloy 617 has been studied using both static and fatigue loading at 650°C. Tests were conducted at a constant stress intensity factor, K, for static loading ...

  20. Industrial structure and employment growth in the 1990s in Appalachian counties

    MIT - DSpace

    Tan, Zhijun (Zhijun Jeanne)

    2005-01-01

    Employment growth in the 1990s and its relationship with the initial industrial structure in 1990 are examined in the case of Appalachian counties, after controlling for labor-market conditions and other factors, such as ...