Sample records for african american black

  1. Argonne's African American Black Club awards scholarships to...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    students July 30, 2014 Tweet EmailPrint The African American Black Club (AABC) at Argonne has awarded four scholarships to promising local Illinois high school students to...

  2. Professor, Communication Studies and African American Studies

    E-Print Network [OSTI]

    Miami, University of

    Professor, Communication Studies and African American Studies Director of African American of Communication and Theatre Arts and Director of the African American Studies Program at the University of Puget Book Chapter Award from the African American Communication and Culture Division and the Black Caucus

  3. Commemorating Black History: Contributions of African Americans to the Manhattan Project

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) commissioned an exhibit documenting the contributions of African Americans to the Manhattan Project at Hanford Reservation.

  4. E-Print Network 3.0 - african american female Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    RaceEthnic Summary: Native American Asian Black or African American HispanicLatino White Unspecified Total Female 13 1 6 3 28 9 60... Asian Black or African American Hispanic...

  5. Precedents in African American architecture

    E-Print Network [OSTI]

    Sass, Lawrence

    1994-01-01T23:59:59.000Z

    As a sub-sets of American culture, African Americans have not been able to offer culturally specific architectural elements to the design process because the history of African American form and space has not been recognized ...

  6. http://www.sil.si.edu/SILpublications/AfricanAmericanIndiansBibliography.pdf1 AFRICAN AMERICAN INDIANS

    E-Print Network [OSTI]

    Mathis, Wayne N.

    . Tarcher/Putnam, 2002. Halliburton, R. Jr. Red Over Black: Black Slavery among the Cherokee Indians: Greenwood Press, 1977. May, Katja. African Americans and the Native Americans in the Creek and Cherokee of Cherokee Society, 1540-1866. 1st ed. Knoxville: University of Tennessee Press, 1979. Porter, Kenneth

  7. Black California Dreamin': The Crises of California's African-American Communities

    E-Print Network [OSTI]

    Woods, Clyde

    2012-01-01T23:59:59.000Z

    Palo Alto. 19 Demographically, South Bay black pioneers had to work together because their population

  8. Black California Dreamin': The Crises of California's African-American Communities

    E-Print Network [OSTI]

    Woods, Clyde

    2012-01-01T23:59:59.000Z

    40 times. They emptied their guns, walked away and reloaded,black people killed with guns in Los Angeles. The obituariestells stories of victims of gun violence in Los Angeles.

  9. E-Print Network 3.0 - african american mothers Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    for: african american mothers Page: << < 1 2 3 4 5 > >> 1 HIGHLIGHTS OF THE BLACK-WHITE BENCHMARKS REPORTS Ralph Bangs, Christine Anthou, Shannon Hughes, Chris Shorter...

  10. E-Print Network 3.0 - african american children Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    for: african american children Page: << < 1 2 3 4 5 > >> 1 HIGHLIGHTS OF THE BLACK-WHITE BENCHMARKS REPORTS Ralph Bangs, Christine Anthou, Shannon Hughes, Chris Shorter...

  11. Heart Healthy Home Cooking African American Style

    E-Print Network [OSTI]

    Bandettini, Peter A.

    Heart Healthy Home Cooking African American Style With Every Heartbeat Is Life #12;#12;Heart Recipe Substitutions for Heart Healthy Cooking at the heart of African American family life and special celebrations. This recipe book brings together many

  12. E-Print Network 3.0 - asian black latino Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ethnic Summary: IndianNative American Asian Black or African American HispanicLatino White Multi-Racial Unspecified... Native American Asian Black or African American Hispanic...

  13. Four African American Undergraduate Students And Two White Professors: Reflections of a Difficult Dialogue Program at a Predominantly White University

    E-Print Network [OSTI]

    Green, Monica Roshaw

    2013-05-09T23:59:59.000Z

    Black Colleges and Universities to Predominantly White Institutions..?????.??????????????.. 27 The Eugenics Movement?????????????????.. 34 Current Issues of the Retention of African Americans Students........... 45 Discussion of the Literature..., 1973), student faculty interactions (Endo and Harpel, 1982), support for African American students (Allen et al, 1991), and the overwhelming topic of the retention of African American students attending predominantly universities. Background...

  14. african black coucals: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Bernard, Rachel Deborah 2012-01-01 22 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  15. The African-American house as a vehicle of discovery for an African-American architecture

    E-Print Network [OSTI]

    Clarke, Charles E. (Charles Edward)

    1996-01-01T23:59:59.000Z

    The purpose of this research is three-fold: (1) This thesis seeks to uncover evidence of a distinctly African-American architectural form. The primary building type observed will be the house, or the housing of African-Americans ...

  16. african american family: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Williams II, Ronald Cartell 2011-01-01 17 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  17. african american adults: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Williams II, Ronald Cartell 2011-01-01 10 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  18. african american families: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Williams II, Ronald Cartell 2011-01-01 17 of October 2002 African Americans Renewable Energy Websites Summary: Injustice Air Injustice of October 2002 African Americans & Power...

  19. E-Print Network 3.0 - african american men Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    African Studies 9 Men 0 0 0 0 0 0 0 0 Women 0 0 0 0 0 0 0 0 05.0103 Asian... - ident alien Black, non- Hispanic American Indian or Alaska Native Asian or ... Source: Naval...

  20. AFRICAN-AMERICAN STUDENTS African-American Career World, http://www.eop.com/mags-AACW.php, is the

    E-Print Network [OSTI]

    Arnold, Jonathan

    AFRICAN-AMERICAN STUDENTS African-American Career World, http://www.eop.com/mags-AACW.php in the workplace. ASIAN STUDENTS Asian American: Career Center- http://goldsea.com/Text/index.php

  1. Home Front as Warfront: African American World War I Drama

    E-Print Network [OSTI]

    Egging, Anna Katherine

    2010-08-31T23:59:59.000Z

    This dissertation recovers little-known African American World War I plays that blur the boundary between the home front and warfront. I argue that with this focus, the plays wage their own war for African American citizenship ...

  2. A Qualitative Description of African American Women's Breastfeeding Experiences

    E-Print Network [OSTI]

    Spencer, Becky

    2012-08-31T23:59:59.000Z

    The low rates of breastfeeding among African American women in the U.S. is a poorly understood, persistent disparity that contributes to higher incidences of morbidity and mortality for African Americans across the lifespan. ...

  3. Addressing the lack of Baseball Consumption amongst African Americans

    E-Print Network [OSTI]

    Brown, Brandon Leigh

    2013-08-06T23:59:59.000Z

    . This is particularly relevant to African American sport consumption, as Armstrong (2002b) suggests African Americans require a particular set of motivational factors to be present in a sport if they are to consider consumption. The current study will therefore..., it is also important to understand racial identity; for scholars suggest ?racial identification? to be an important factor influencing African American sport consumption (Armstrong 2002a; Armstrong, 2002b; Hanssen, 2001; Liu, Huand, & Minghua, 2007...

  4. african american girls: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    underperformed relative to boys in science, technology, engineering, and mathematics. Brown, Christia Spears; Leaper, Campbell 2010-01-01 171 Rodney K Odom African American...

  5. A. To promote African American faculty, staff and student success. B. To expand and share knowledge of African American contributions to society.

    E-Print Network [OSTI]

    Su, Xiao

    of History and African American Studies, SJSU Barack Obama, President United States of America The African Records of Urgent Inventions of African American in the USA. Speaker: Dr. Steven Millner, Professor

  6. E-Print Network 3.0 - african american patients Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Disorder... of Veterans Affairs Medical Center, Atlanta, GA African Americans in low-income, urban communities are at high... that low income African Americans living ... Source:...

  7. The Puzzle of Hypertension in African-Americans56 Scientific American February 1999 The Puzzle of

    E-Print Network [OSTI]

    Fraden, Seth

    The Puzzle of Hypertension in African-Americans56 Scientific American February 1999 The Puzzle of Hypertension in African-Americans by Richard S. Cooper, Charles N. Rotimi and Ryk Ward N early all Americans undergo a steady rise in blood pressure with age. Almost 25 percent cross the line into hypertension

  8. OFFICE OF AFRICAN AMERICAN AFFAIRS PEER ADVISOR PROGRAM

    E-Print Network [OSTI]

    Acton, Scott

    OFFICE OF AFRICAN AMERICAN AFFAIRS PEER ADVISOR PROGRAM 2012 ­ 2013 Application 1 | P a g e For Office Use Only Application #_______ Dear Applicant: The Office of African-American Affairs' Peer Advisor Program is excited that you are interested in becoming a Peer Advisor (PA) for the 2012-2013 academic year

  9. E-Print Network 3.0 - african americans annual Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to US-born African American... by race and poverty,with the most extreme ef- fects among poor African American women.The effects... had a significant effect on MLBW among African...

  10. E-Print Network 3.0 - african american prostate Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    for: african american prostate Page: << < 1 2 3 4 5 > >> 1 This Time... The American Cancer Society believes doctors Summary: at high risk, including African-American men and men...

  11. african american adolescents: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Orders. 12;On the Move to Better Heart Health for African Americans Delicious Section 1 Knowledge Is Power: Know Your Risk for Heart Disease 4 Section 2 Act in Time to Heart...

  12. african american donors: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFST 515: African GEOG 323: Urban Geography HIST 437: Soldiers Fought: War and American Society HIST 525: Space, Place Papautsky, Ian 198 Donor Relations 2.0: Using Web 2.0 to...

  13. The Career Experiences of African American Female Engineers

    E-Print Network [OSTI]

    Rice, Delores Nichelle

    2012-10-19T23:59:59.000Z

    on increasing the pipeline, recruitment, and retention of underrepresented groups in the K-12 and collegiate domain. There is little, if any, literature focused on the career development of African American female engineers holistically. This is a critical...

  14. E-Print Network 3.0 - african americans views Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AND AFRICAN-AMERICAN STUDIES "...We are where Africa, the Americas... , Europe and the Middle East meet." The Department Founded in 1970, the Department of African and...

  15. E-Print Network 3.0 - african americans living Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    American and Caribbean Studies... ChangeLatin American and Caribbean Studies) * Padraic Kenney (HistoryREEI) * Patrick O'Meara (Political... ScienceAfrican Studies) *Nazif ......

  16. E-Print Network 3.0 - african-american population enriched Sample...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    populations throughout the world. They analyze... . To understand its central role in American life, the program critically examines how the African American... experience has been...

  17. E-Print Network 3.0 - african american college Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    that encom- passes a variety of subjects... . To understand its central role in American life, the program critically examines how the African American... experience has been...

  18. E-Print Network 3.0 - african american parents Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    through a curriculum that encom- passes a variety of subjects... . To understand its central role in American life, the program critically examines how the African American......

  19. E-Print Network 3.0 - african americans hispanics Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    0 0 *** *** *** *** 0... - - - African American - - - Hispanic - - - Non-Resident Alien - - - Native ... Source: Zobin, Nahum - Department of Mathematics, College of William...

  20. E-Print Network 3.0 - african american hispanic Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    0 0 *** *** *** *** 0... - - - African American - - - Hispanic - - - Non-Resident Alien - - - Native ... Source: Zobin, Nahum - Department of Mathematics, College of William...

  1. Commemorating Black History: Contributions of African Americans...

    Broader source: Energy.gov (indexed) [DOE]

    The site was used to produce plutonium for the bomb that brought an end to World War II. During that era, people from all over the country came to Hanford, ultimately...

  2. Residential insecticide exposure during pregnancy among African American and

    E-Print Network [OSTI]

    Residential insecticide exposure during pregnancy among African American and Dominican mothers and newborns from NYC R Whyatt, V Rauh, H Andrews, D Barr, D Camann, F Perera #12;Residential Pesticide Use 85 for Children's Environmental Health #12;Regulatory action to phase out residential use of chlorpyrifos

  3. Bourdieuian Analysis on African Americans’ Under-representation at Parks and Outdoor Recreation

    E-Print Network [OSTI]

    Lee, KangJae

    2013-07-18T23:59:59.000Z

    This study used Pierre Bourdieu’s theory of practice and analyzed African Americans’ under-representation at parks and in outdoor recreation. It focused on Cedar Hill State Park (CHSP) located in Cedar Hill, Texas and investigated local African...

  4. BLACK HISTORY MONTH

    Broader source: Energy.gov [DOE]

    Black History Month is an annual celebration of achievements by black Americans and a time for recognizing the central role of African Americans in U.S. history. The event grew out of “Negro History Week,” created by historian Carter G. Woodson and other prominent African Americans. Other countries around the world, including Canada and the United Kingdom, also devote a month to celebrating black history.

  5. ACCEPTABLE HUMANITIES (HU) COURSES * African American Studies

    E-Print Network [OSTI]

    AR 251 Ancient Maya Civilization Art History Any 100-, 200- or 300-level CAS AH course Cinema Studies CAS CI 101 History of Global Cinema 1: Origins through 1950s CAS CI 102 History of Global Cinema 2 in American Literature CAS EN 128 Representing Boston CAS EN 130 Literature and Science CAS EN 141 Literary

  6. E-Print Network 3.0 - african americans public Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Medicine 9 Enrollment by RaceEthnic Categories and Gender RaceEthnic Summary: Harris School of Public Policy Studies RaceEthnic & Gender International Black or African...

  7. E-Print Network 3.0 - african american infants Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Environmental Sciences and Ecology ; Biology and Medicine 65 LEADERSHIP FORUM "Health Care Reform -Leadership in a Time of Chaos" Summary: . As the first African-American...

  8. E-Print Network 3.0 - african-american men major Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    African-American families own Source: North Carolina State University, North Carolina Solar Center Collection: Renewable Energy ; Energy Storage, Conversion and Utilization 71 An...

  9. E-Print Network 3.0 - african american cancer Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    cancer Search Powered by Explorit Topic List Advanced Search Sample search results for: african american cancer Page: << < 1 2 3 4 5 > >> 1 This Time... The American Cancer Society...

  10. Our Relationship, My Academia: Historical and Hegemonic Implications Imbuing Academically Successful African American Women from Single-mothered Families

    E-Print Network [OSTI]

    Johnson, Johnitha Watkins

    2013-12-04T23:59:59.000Z

    African Family ......................................................................................... 13 The African Slave Family ........................................................................................ 16 The Emancipated Negro Family... ............................................................................... 20 The Socially Oppressed Negro Family .................................................................... 24 The Liberated African American Family ................................................................. 33 The 21st Century Single...

  11. THE CRISIS OF ECONOMIC INSECURITY FOR AFRICAN-AMERICAN AND LATINO SENIORS

    E-Print Network [OSTI]

    Snider, Barry B.

    THE CRISIS OF ECONOMIC INSECURITY FOR AFRICAN-AMERICAN AND LATINO SENIORS Tatjana Meschede Laura combined with rising costs of basic expenses has resulted in a dramatic rise in senior economic insecurity insecurity. More than half (52 percent) of African-American and 56 percent of Latino seniors are economically

  12. Milwaukee Drilldown on African American Males for the Milwaukee Area Workforce Investment Board, Inc.

    E-Print Network [OSTI]

    Saldin, Dilano

    , and disabilities and offers a valuable tool for workforce planning. Who's Employed The ACS reported an estimated 48Milwaukee Drilldown on African American Males for the Milwaukee Area Workforce Investment Board, Inc. Profile of the African American Male Workforce: Milwaukee County Monthly unemployment statistics

  13. Middle class African American mothers' perceptions of White teachers' interactions with their African American children in predominately White suburban junior high schools

    E-Print Network [OSTI]

    Williams, Twyla Jeanette

    2009-05-15T23:59:59.000Z

    This research study was conducted as a qualitative case study of six middle class African American mothers living in a suburban community. Their children attended a predominantly White suburban junior high school in their community. The study...

  14. Urban African-American Single Mothers Using Resiliency And Racial Socialization To Influence Academic Success In Their Young Sons

    E-Print Network [OSTI]

    Henderson-Hubbard, Lisa Doris

    2012-02-14T23:59:59.000Z

    ?????????????????????.. 63 India?s Story?????????????????????. 65 Patricia?s Story...???????????????????... 68 Shaun?s Story???????????????????....... 70...,809,000 African-American children were being raised by African-American single mothers due to absent husbands, the mother being widowed, divorced or simply having never married (U.S. Census, 2000). In 2000, there were 3,814,000 African- American female headed...

  15. School racial composition and academic performance of african american students in an urban school district

    E-Print Network [OSTI]

    Osagie, Andree O.

    2009-05-15T23:59:59.000Z

    The purpose of this study was to investigate the differences in the academic performance of economically disadvantaged African-American students attending schools with distinct racial composition in selected inner-city Texas high schools based...

  16. Examining the therapeutic compliment with African-Americans: a counseling technique to improve the working alliance

    E-Print Network [OSTI]

    Duncan, Bryan Thomas

    2009-05-15T23:59:59.000Z

    . In this study, the therapeutic compliment is defined, discussed, and compared with other therapeutic interventions to find its usefulness in therapy and its ability to impact the working alliance. 120 African-Americans from a large southwestern university and a...

  17. Facing Racism at 30,000 Feet: African American Pilots, Flight Attendants, and Emotional Labor

    E-Print Network [OSTI]

    Evans, Louwanda

    2012-07-16T23:59:59.000Z

    In this qualitative study, I examine the experiences of African American pilots and flight attendants with emotional labor. Integral to existing theories of emotional labor is the incorporation of voices of color and their contemporary movement...

  18. E-Print Network 3.0 - african american breast Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    abortion and breast cancer risk: results from the E3N cohort study Summary: in a population-based sample of African-American families. Genet Epidemiol 2002;22:285-97. 32....

  19. African American Federal Executive Association, Inc. 9th Annual Training Workshop

    Broader source: Energy.gov [DOE]

    The African American Federal Executive Association, Inc. (AAFEA) will hold its 9th Annual Training Workshop (TW) September 16-17, 2013 in Washington, DC.  The theme of this year’s TW is “LEADING...

  20. E-Print Network 3.0 - african-american mitochondrial dnas Sample...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    University Collection: Biotechnology ; Biology and Medicine 7 42(3):304-309,2001 FORENSIC SCIENCES Summary: U.S. Caucasian, Hispanic, and African American mtDNAs is discussed....

  1. Radical Cosmopolitanism: W. E. B. Du Bois, Germany, and African American Pragmatist Visions for Twenty-First Century Europe

    E-Print Network [OSTI]

    Lenz, Günter H.

    2012-01-01T23:59:59.000Z

    W. E. B. Du Bois, Germany, and African American PragmatistAmericans, Africa, and Germany in the Modern  World.   Ed.  W.E.B.  Du Bois in Nazi Germany, 1936. ” Amerikastudien/

  2. Forensic Anthropology Population Data Facial reconstruction: Soft tissue thickness values for South African black females

    E-Print Network [OSTI]

    Frey, Pascal

    Forensic Anthropology Population Data Facial reconstruction: Soft tissue thickness values for South African black females D. Cavanagh, M. Steyn * Forensic Anthropology Research Centre, Department of Anatomy, University of Pretoria, P.O. Box 2034, Pretoria 0001, South Africa 1. Introduction Forensic facial

  3. BLACK ENGLISH AND THE AMERICAN VALUE SYSTEM

    E-Print Network [OSTI]

    Drake, Glendon F.

    1973-10-01T23:59:59.000Z

    The strategy of enlightened bi-dialectalism used by the schools in the United States to deal with the problem of Black English is a significant attempt at social engineering. This attempt is motivated by basic linguistic ...

  4. Qualitative study of African-American job satisfaction in a scientific/technical research environment

    SciTech Connect (OSTI)

    Krossa, C.D. [San Francisco Univ. (United States)

    1996-09-01T23:59:59.000Z

    Many studies have been conducted in the area of job satisfaction. Its necessary attributes sor components have been studied, analyzed, validated, standardized, and normed, onpredominantly white male populations. Few of these studies have focused on people of color, specifically African-Americans, and fewer still on those African-Americans working in a high-tech, scientific and research environments. The researchers have defined what is necessary for the current dominent culture`s population, but are their findings applicable and valid for our nation`s other cultures and ethnic groups? Among the conclusions: the subjects felt that there was no real difference in job satisfiers from their white colleagues; however the subjects had the sense of community (African-American) and the need to give back to it. Frustrations included politics, funding, and lack of control.

  5. Introduction to Exporting American Dreams: Thurgood Marshall's African Journey

    E-Print Network [OSTI]

    Dudziak, Mary L.

    2009-01-01T23:59:59.000Z

    reprinted in Thurgood Marshall: His Speeches, Writings,1995). Very little is written on Marshall’s work on AfricanJuan Williams brie?y covers Marshall’s trips to Africa in

  6. Middle Class and Middle School: Does Opportunity Knock for African American Students?

    E-Print Network [OSTI]

    Mooney, Patricia 1960-

    2012-12-10T23:59:59.000Z

    the shortcomings in NCLB (2001), President Barack Obama signed The American Recovery and Reinvestment Act (ARRA) into law. Race to the Top (RTTT) was established by the AARA as a competitive grant program to encourage and reward States to participate...MIDDLE CLASS AND MIDDLE SCHOOL: DOES OPPORTUNITY KNOCK FOR AFRICAN AMERICAN STUDENTS? A Record of Study by Patricia Ann Mooney Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  7. Portrayal of African Americans in the Media: An Examination of Law and Order

    E-Print Network [OSTI]

    Omiecinski, Curtis

    tied to the cultivation theory developed by George Gerbner and Larry Gross (1976). According that they are living in a world similar to what is portrayed on the screen (Fujioka, 1999; Gerbner & Gross, 1976 & Gross, 1976). Nonetheless, the media portrays African Americans acting out and behaving in unflattering

  8. A REVOLUTION WITHIN A REVOLUTION: AFRICAN AMERICAN AND WOMEN BEAT POETS

    E-Print Network [OSTI]

    Abernethy, Olivia

    2008-08-19T23:59:59.000Z

    The objective of this research was to shed light on African Americans and Women poets influenced by the Beat Generation. I chose LeRoi Jones/Amiri Baraka, Diane di Prima and Bob Kaufman. I researched each poet's background, poetics, published...

  9. african american students: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Place Papautsky, Ian 239 Snow snakes and science agency: empowering American Indian students through a culturally-based science, technology, engineering, and mathematics...

  10. Racial Narratives, Group Identity, and African-American Political Behavior

    E-Print Network [OSTI]

    Delehanty, William

    2010-05-13T23:59:59.000Z

    ” is dependent upon human agreement and the understandings human agents bring to questions of what it means to know something about social, political and economic life. Knowledge is not decipherable without some reference point in human social relations.... The fifth chapter continues the historical analysis by looking at racial relations from 1965 to the present day. Of particular importance here will be the black power and Black Nationalist movements of the 1970s, and the conservative reaction against...

  11. INTERACTIVE READING EXPERIENCES OF AFRICAN AMERICAN FATHERS AND SOCIAL FATHERS AND THEIR 4-AND 5-YEAR-OLD CHILDREN

    E-Print Network [OSTI]

    JACKSON, CLARISSA RENEE'

    2012-08-31T23:59:59.000Z

    The purpose of this mixed-methods study was to investigate the patterns of book choice and interaction during book reading sessions of six African American fathers and social fathers and their 4- to 5-year-old children. ...

  12. Psychometric Properties of the 30 Item Wisconsin Inventory of Smoking Dependence Motives (WISDM-30) among African American Light Smokers

    E-Print Network [OSTI]

    Bronars, Carrie Anne

    2011-12-31T23:59:59.000Z

    Despite smoking fewer cigarettes per day, African American smokers have greater difficulty quitting when compared to other ethnic groups. Identifying factors associated with smoking among these high-risk smokers may assist ...

  13. Brothers of the Trade: Intersections of Racial Framing and Identity Processes upon African-Americans and African Immigrants in America - Ancestral Kinsmen of the American Slave Trade

    E-Print Network [OSTI]

    Williams, Veeda V.

    2012-07-16T23:59:59.000Z

    , mom, James, LaVern and Rose, I cannot express how much I miss you all. If at all possible, I hope that if you could look down on this day, know that this is possible because of what each of you have contributed to my life; eternal rest and peace...), pathological and downright ugly ? an identity imposed as a result of the white racial framing of America. Such manifestation of racism and discrimination forces African-Americans to engage society from a perspective rooted in the social...

  14. African American Students in a Middle Income, Urban School District: Five Successful Secondary Teachers’ Beliefs and Practices

    E-Print Network [OSTI]

    Williams Jefferson, Rhonique Lia

    2013-12-03T23:59:59.000Z

    (Plessy v. Ferguson) ordained the doctrine of discrimination against African Americans. The 1954 decision in Brown v. Board of Education of Topeka began the dismantling of separate schooling. Although the Brown decision did not change the educational... of an oppressive paradigm. White children were attending and finishing high school at a rate of approximately 82% (Heckman & LaFontaine, 2007). During that same time period, although they were being overtly discriminated against, African American children...

  15. Welfare and Conversion: The Catholic Church in African American Communities in the South, 1884-1939

    E-Print Network [OSTI]

    Collopy, William

    2012-02-14T23:59:59.000Z

    : An Investigation of Catholic Activity in Behalf of the Negroes in the United States and a Survey of the Present Condition of the Colored Missions. Gillard dedicated his work, which countless students of the African American apostolate have referenced over... the years, as follows: ?This book is reverently dedicated to the priests and Sisters of yesteryear ? many now sleeping in nameless graves in forgotten cemeteries in the Southland, many still straining to the yoke ? who espoused the cause of the Negro...

  16. Recruitment and retention initiatives for African American and Hispanic teachers in selected school districts in Texas

    E-Print Network [OSTI]

    Perry, Anita Jane

    2005-08-29T23:59:59.000Z

    RECRUITMENT AND RETENTION INITIATIVES FOR AFRICAN AMERICAN AND HISPANIC TEACHERS IN SELECTED SCHOOL DISTRICTS IN TEXAS A Dissertation by ANITA JANE PERRY Submitted to the Office of Graduate Studies of Texas A&M University... IN SELECTED SCHOOL DISTRICTS IN TEXAS A Dissertation by ANITA JANE PERRY Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved as to style and content by...

  17. On the Move to Better Heart Health for African Americans

    E-Print Network [OSTI]

    Bandettini, Peter A.

    Section 1 Knowledge Is Power: Know Your Risk for Heart Disease 4 Section 2 Act in Time to Heart Attack Americans believe that a heart attack or stroke happens suddenly because of a scary experience, getting bad news, or having strong feelings like anger. A heart attack or stroke may seem sudden, but the truth

  18. American Suppliers: The Role of Americans in the Perpetuation and Maintenance of the Postwar Black Market in Germany

    E-Print Network [OSTI]

    Fasulo, Micheal

    2012-02-14T23:59:59.000Z

    Americans are curiously absent from the literature as forces in the black market prevailing in Germany after World War II. Aside from Rundell's study of failed currency control policy during the Second World War and the subsequent occupations...

  19. American racism and African diplomats: race and American Cold War policy in West Africa

    E-Print Network [OSTI]

    Oriabure, Stephannie Ebhota

    2001-01-01T23:59:59.000Z

    American society. The interconnectedness between Cold War ideology and civil rights increased during the 1960s. Cold War tensions escalated and the American government became increasingly concerned about the effect of racial strife on the country's image...

  20. Era Bell Thompson: Observations of an American Daughter on the American South and the African Congo

    E-Print Network [OSTI]

    Zacharias, Karenbeth Garvin

    2012-12-31T23:59:59.000Z

    This dissertation asks how author and journalist Era Bell Thompson understood and constructed her racial identity against the historical context of the connections between the American South and the Congo. Thompson's unique ...

  1. Squamous cell carcinomas in Afro-Caribbean women. (comment about the article: "Squamous cell carcinomas in African American women" by

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Squamous cell carcinomas in Afro-Caribbean women. (comment about the article: "Squamous cell in Afro-Caribbean patients. We recently8 performed a 11-year retrospective study with the aim black Caribbean10 of African European descent). Incident cases of SCC from the study period were

  2. An Examination of Household Environmental Influences on Healthy Eating Behaviors among African American Primary Caregivers and Children

    E-Print Network [OSTI]

    Arthur, Tya Michelle

    2012-02-14T23:59:59.000Z

    1 AN EXAMINATION OF HOUSEHOLD ENVIRONMENTAL INFLUENCES ON HEALTHY EATING BEHAVIORS AMONG AFRICAN AMERICAN PRIMARY CAREGIVERS AND CHILDREN A Dissertation by TYA MICHELLE ARTHUR Submitted to the Office of Graduate Studies... ................................................................................ 1 Background .................................................................................... 1 Problem Statement ......................................................................... 3 Purpose of the Study...

  3. E-Print Network 3.0 - african american health Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Mental Health-Seeking Attitudes among People of African Summary: mental health care less than whites Differences in help-seeking behaviors among African...

  4. Examining the world of subcultural existence: a descriptive analysis of African American management experiences and values

    E-Print Network [OSTI]

    Stephens, Chandra D.

    2007-04-25T23:59:59.000Z

    .S., University of Houston, Clear Lake Chair of Advisory Committee: Dr. Kenneth E. Paprock A s t o d a y ? s g l o b a l b u s i n e s s es acknowledge the criticality of being competitive in international markets, this new awakening also compels... i l a r l y f r a m e d a r o u n d s o m e v a l u e s e x a m i n e d i n P e p p a s ? r e s e a r c h , t h e p u r p o s e o f t h i s study was to explore the African American subcultural experiences in practice...

  5. The effect of incarceration rates on mate availability and its effect on the formation and structure of the African American family: a theoretical and empirical analysis

    E-Print Network [OSTI]

    McGruder, Patricia Hollis

    1995-01-01T23:59:59.000Z

    A number of scholars have argued that declining mate availability for African American women has had important consequences for family formation and family structure in recent decades (Darity and Myers 1984; Dickson 1993; Guttentag and Secord 1983...

  6. Recruiting African American Male Teachers in K-12 Schools: A Case Study in One Urban School District

    E-Print Network [OSTI]

    Watson, Jesse

    2012-02-14T23:59:59.000Z

    , Gwen Webb-Hasan Terah Chambers Head of Department, Dennie L. Smith December 2011 Major Subject: Curriculum and Instruction iii ABSTRACT Recruiting African American Male Teachers in K-12 Schools: A... to thank my brother for his constant words of encouragement and lending ears. I thank my committee co-chairs, Dr. Lewis and Dr. Carter, and my committee members, Dr. Web-Hasan and Dr. Venzant-Chambers, for their guidance and support throughout...

  7. Examining the Perceptions of Urban African American Elementary Teachers: The Implementation of Culturally Responsive Materials Into the Classroom

    E-Print Network [OSTI]

    Hicks, Johnetta

    2012-02-14T23:59:59.000Z

    &M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2010 Major Subject: Curriculum and Instruction EXAMINING THE PERCEPTIONS OF URBAN AFRICAN AMERICAN ELEMENTARY TEACHERS: THE IMPLEMENTATION...: Chair of Committee, Norvella P. Carter Committee Members, Patricia J. Larke Chance L. Lewis Edward L Mason Mitchell Rice Head of Department, Dennie L. Smith December 2010 Major Subject: Curriculum and Instruction iii ABSTRACT Examining...

  8. A Link To The Future: A Pilot Study Look at How Historically Black Colleges and Universities With Journalism and Mass Communications Units Use The Internet in Recruiting

    E-Print Network [OSTI]

    Crawford II, Jerry L.

    2012-04-01T23:59:59.000Z

    Historically Black Colleges and Universities (HBCUs) have had the ability to recruit African-American students since the 1860s by stressing a sense of inclusion and family through their mission statements and community ...

  9. E-Print Network 3.0 - african american communities Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ResearchCommunity Development AFRCNA 1768 African... to the educational, social, and political ... Source: Sibille, Etienne - Center for the Neural Basis of Cognition & Department...

  10. E-Print Network 3.0 - african american smokers Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Society 1. Smokers absorb relatively large doses of a potent neurotoxin. 2... of the Central African Republic Aka camp Study site rationale: The Aka have high levels of...

  11. Drilldown on African American Male Employment and Workforce Needs, prepared for the Milwaukee Area Workforce Investment Board by the University of Wisconsin-Milwaukee Employment and Training Institute

    E-Print Network [OSTI]

    Saldin, Dilano

    a valuable tool for workforce planning. This report for the Milwaukee Area Workforce Investment BoardDrilldown on African American Male Employment and Workforce Needs, prepared for the Milwaukee Area Workforce Investment Board by the University of Wisconsin-Milwaukee Employment and Training Institute 1

  12. Reducing Stereotype Threat in Academically At-Risk African-Americans Students: A Self-

    E-Print Network [OSTI]

    Simmons, Crystal Marie

    2011-01-01T23:59:59.000Z

    10.1037/0022-3514.77.6.1213 Stricker, L.J. , & Ward, W. (world setting. For example, Stricker and Ward (2004) soughtAmerican students. Although Stricker and Ward (2004) and

  13. The Forgotten Children: African American Children and Child Welfare Reform in St. Louis, 1890-1930

    E-Print Network [OSTI]

    Thirlkel, Thomas E.

    2010-05-07T23:59:59.000Z

    Abstract Forgotten Children examines the influence of racial ideology on the trajectory of child welfare reform in late nineteenth century and early twentieth century St. Louis. The modern American child welfare system emerged in this time period...

  14. Black California Dreamin': The Crises of California's African-American Communities

    E-Print Network [OSTI]

    Woods, Clyde

    2012-01-01T23:59:59.000Z

    Fillmore and Bayview-Hunters Point, the former standing asconcentrated in Bayview/Hunters Point, declined from 96,000is home to the former Hunters Point shipyard where the Point

  15. "When you want to give up, you want to give in": Mentoring perceptions of African American women doctoral students at a predominately White institution

    E-Print Network [OSTI]

    Fowler, Rhonda Michelle

    2013-08-08T23:59:59.000Z

    students. According to Patton and Harper (2003) ?Mentoring has been considered one of the salient factors in academic and career success. African American women in graduate schools often find it difficult to locate suitable mentors with whom to build... scholars and practitioners who intend to excel in their respective professions have the opportunity to make connections and learn how to successfully maneuver within their areas of specialization? (Patton & Harper, 2003, p. 67). While the situation...

  16. Alone in the profession of arms: America's first three African American West Point graduates

    E-Print Network [OSTI]

    James, Jeremy Wayne

    2009-05-15T23:59:59.000Z

    . Newspaper editorials and journal articles 10 also help to illuminate how other officers viewed these men and their capacities to serve as army leaders. Additionally, journals, correspondence, and published memoirs written by these black officers shed... are not supported by the historical record or cannot otherwise be substantiated. 18 The time period in which Flipper grew up certainly influenced his outlook on societal issues. As a former slave he observed first hand the South?s forced transformation into a...

  17. Factor influencing the recruitment and retention of undergradutes as reported by African-American graduates of Texas A&M University between May 1998 and December 2003

    E-Print Network [OSTI]

    Harnsberry, John Gabriel

    2005-11-01T23:59:59.000Z

    to public colleges and universities?The mandate of Brown v. the Board of Education (1954) was clear on segregation in public education?Three years after the Brown (1954) decision, 52% of the formerly all-White colleges in the south had token desegregation... and continues to have an enormous impact on higher education?Basically, Title VI of the Civil Rights Act prohibits discrimination in any program which receives federal funds? (p. 57). With the passage of that legislation, enrollment of African American students...

  18. Education no longer deferred: the possibilities of educating urban african american males in a single gender school.

    E-Print Network [OSTI]

    James, Marlon C.

    2009-05-15T23:59:59.000Z

    The purpose of this study is to investigate the emerging school culture of Excel Academy for Boys [Pseudonym] located in the Southwestern region of the United States, and how it contributes to the social and academic development of urban African...

  19. Black History Month

    Broader source: Energy.gov [DOE]

    During National African American History Month, we pay tribute to the contributions of past generations and reaffirm our commitment to keeping the American dream alive for the next generation.  In...

  20. E-Print Network 3.0 - african development community Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ResearchCommunity Development AFRCNA 1768 African... to the educational, social, and political development of the local African American community and develops actors... , prison...

  1. E-Print Network 3.0 - african species od Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    researchers-create-the-world's-most-advanced-genetic-map July 20, 2011 New biological atlas focuses on African American genomics A consortium led by scientists... from African...

  2. Tyrosinase-positive oculocutaneous albinism in Southern African blacks: P gene-associated haplotypes suggest a major mutation in the 5{prime} region of the gene

    SciTech Connect (OSTI)

    Ramsay, M.; Stevens, G.; Beukering, J. van [Univ. of the Witwatersrand, Johannesburg (South Africa)] [and others

    1994-09-01T23:59:59.000Z

    Tyrosinase-positive oculocutaneous albinism (ty-pos OCA) occurs with a prevalence of 1 in 3900 among Southern African (SA) blacks. The major contributors to morbidity and mortality are skin cancer and decreased visual acuity. Two distinct phenotypes occur, namely individuals with ephelides (darkly pigmented patches) and those without. There is complete concordance with regard to ephelus status among siblings. The disorder is linked to markers on chromosome 15q11.2-q12, and no obligatory cross-overs were observed with polymophic markers at the human homolog, P, of the mouse pink eyed dilute gene, p. Contrary to what has been shown for Caucasoid ty-pos OCA, this condition shows locus homogeneity among SA blacks. The P gene is an excellent candidate for ty-pos OCA and mutations in this gene will confirm its role in causing the common form of albinism in SA. Numerous P gene mutations have been described in other populations. In an attempt to detect mutations, the P gene cDNA was used to search for structural rearrangements or polymorphisms. Six polymorphisms (plR10/Scal, 912/Xbal, 912/HincII, 912/TaqI, 1412/TaqI [two systems] and 1412/HindIII) were detected with subclones of the P cDNA and haplotypes were determined in each family. None were clearly associated with an albinism-related rearrangement. However, strong linkage disequilibrium was observed with alleles at loci toward the 5{prime} region of the gene ({triangle}=0.65, 0.57 and 0.80 for the three polymorphisms detected with the 912 subclone), suggesting a major ty-pos OCA mutation in this region. Haplotype analysis provides evidence for a major mutation associated with the same haplotype in individuals with ephelides (8/12 OCA chromosomes) and those without ephelides (24:30). The presence of other ty-pos OCA associated haplotypes indicates several other less common mutations.

  3. Communicaton and diversity: the adjustment and socialization of African American students at Texas A&M University

    E-Print Network [OSTI]

    Mouton, Walelia Chevalier

    1994-01-01T23:59:59.000Z

    interchangeably to mean U. S. born students of African decent. For purposes of this study, I use the term "ExCEL" to mean both the 2-day fresh- man orientation and I CARE sessions held through the fall and spring semesters of the same school year.... For the school year 1993-1994 the program administrators refer to ExCEL as both components. TABLE OF CONTENTS Page ABSTRACT. ACKNOWLEDGEMENT S 1V TABLE OF CONTENTS V1 LIST OF TABLES. CHAPTER vu1 I INTRODUCTION AND REVIEW OF LITERATURE...

  4. E-Print Network 3.0 - african rape cases Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    unemployment rate for prime age (25-54) working African American women... . In Allegheny County, African American womens unemployment rate was 11.9% compared to only 3.7% for...

  5. African-American food and social relations in Bryan, Texa: a culinary ethnography at the community cafe

    E-Print Network [OSTI]

    Markowitz, Bradford Alan

    2000-01-01T23:59:59.000Z

    the community's youth. He taught them reading skills and "the black history they don't teach in school, " At our first meeting (October 1995), Delbert was promoting Louis Farrakhan's 'Million Man March, " and planning services for the seven-day festival... had also been considering alternative routes for the senator's commemoration. While the senator's commemoration remains an unrealized project in the City of Bryan, progress was made at TAMU when the President's Advisory Committee on Art Policy...

  6. E-Print Network 3.0 - american indian women Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Americans African Americans American ... Source: Kaminsky, Werner - Center for Nanotechnology and NanoTechnology & Department of Chemistry, University of Washington at Seattle...

  7. Black and white: a portrayal of gender roles in American women's periodicals during the Eisenhour years

    E-Print Network [OSTI]

    McGaugh, Emily Cozette

    1996-01-01T23:59:59.000Z

    extent Ebony and Negro Digest. g THIS THESIS The research of Friedan, Deckard, Franzwa, Peck, May, and Meyerowitz is important. This thesis builds on their work by employing a wider range of periodicals, those most popular among females between 1953... by several male and female doctors and summarized: "Few Negro women believe that a woman's place is in the home. . . . the role of the American Negm woman is a family life of home and marriage and some outside interest. Those who want a career should have...

  8. american cutaneous leishmaniasis: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a newspaper while the African American lawyer arguedAfrican American community of Tulsa, Oklahoma, came under attack following newspaper Pye, David Kenneth 2010-01-01 240 An...

  9. american apiaries implications: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a newspaper while the African American lawyer arguedAfrican American community of Tulsa, Oklahoma, came under attack following newspaper Pye, David Kenneth 2010-01-01 209 An...

  10. Outside relationality : autobiographical deformations and the literary lineage of Afro-pessimism in 20th and 21st century African American literature

    E-Print Network [OSTI]

    Pak, Yumi

    2012-01-01T23:59:59.000Z

    the black opening of a cavern in which I would be torturedas being drawn into a dark cavern – an obvious reference tothe black opening of a cavern in which I would be tortured

  11. E-Print Network 3.0 - african pear dacryodes Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    20:89101 (2001) 2001 Wiley-Liss, Inc. Summary: American captive African and Asian elephant populations as a means to examine the magnitude of disease risk... with the African...

  12. E-Print Network 3.0 - american boundary commission Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DepartmentofAfrican AmericanStudies, and Kreeger Wolf... Professor of Political Science 12;Allison Davis was a distinguished Af- rican American social...

  13. E-Print Network 3.0 - african big cities Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Centre de mathmatiques Collection: Mathematics 88 BLACK-WHITE BENCHMARKS FOR ALLEGHENY COUNTY Ralph Bangs, Christine Anthou, Shannon Hughes, Chris Shorter Summary: The African...

  14. E-Print Network 3.0 - adult female african Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    results for: adult female african Page: << < 1 2 3 4 5 > >> 1 HIGHLIGHTS OF THE BLACK-WHITE BENCHMARKS REPORTS Ralph Bangs, Christine Anthou, Shannon Hughes, Chris Shorter...

  15. E-Print Network 3.0 - african children receiving Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sample search results for: african children receiving Page: << < 1 2 3 4 5 > >> 1 BLACK-WHITE BENCHMARKS FOR ALLEGHENY COUNTY Ralph Bangs, Christine Anthou, Shannon Hughes, Chris...

  16. E-Print Network 3.0 - african multimammate rat Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in all people but particularly in African Americans. (Chris Sweda Chicago Tribune MCT) The first Source: Reich, David - Department of Genetics, Harvard University...

  17. EMPLOYING A PHENOMENOLOGICAL INQUIRY APPROACH TO EXPLORE A FEW URBAN AFRICAN

    E-Print Network [OSTI]

    Zhou, Yaoqi

    EMPLOYING A PHENOMENOLOGICAL INQUIRY APPROACH TO EXPLORE A FEW URBAN AFRICAN AMERICAN MATH. The study utilized a qualitative phenomenological inquiry approach and four teachers participated

  18. E-Print Network 3.0 - african cancer bulletin Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    cancer bulletin Search Powered by Explorit Topic List Advanced Search Sample search results for: african cancer bulletin Page: << < 1 2 3 4 5 > >> 1 This Time... The American...

  19. Amazon.com: Black Rice: The African Origins of Rice Cultivation in the Americas (9780674008342): Judith A. Carney: Books http://www.amazon.com/Black-Rice-African-Cultivation-Americas/dp/0674008340/ref=sr_1_1?s=books&ie=UTF8&qid=1335130340&sr=1-1[4/22/2012

    E-Print Network [OSTI]

    Price: $24.50 Price: $19.05 You Save: $5.45 (22%) Special Offers Available In Stock. Ships from and sold and historical evidence, the vital significance of rice in West African society for a millennium before Europeans shaped our historical memory and Quantity: 1 or Sign in to turn on 1-Click ordering. Sell Back Your Copy

  20. Middle School Teachers‘ Reflective Responses to the Cultural Awareness and Beliefs Inventory about African American Learners in an Urban School District: A Qualitative Study

    E-Print Network [OSTI]

    Williams, Kamala Vychel

    2012-02-14T23:59:59.000Z

    teachers with a low sense of efficacy. Teachers with a high sense of efficacy attribute effort as opposed to external factors for classroom outcomes (Carter, 2003). Through various studies, teacher efficacy has been found to mean different things... not the entire race/ethnicity related disparity (Lim, 2008; Lee-Bayha & Harrison, 2002; Lubienski & Shelly, 2003). Many teachers hold a deficit perspective towards student from low SES backgrounds. Black students continue to experience academic challenges...

  1. Polish - American Heritage, Italian - American Heritage, German...

    Broader source: Energy.gov (indexed) [DOE]

    Polish - American Heritage, Italian - American Heritage, German - American Heritage Months Polish - American Heritage, Italian - American Heritage, German - American Heritage...

  2. E-Print Network 3.0 - american intensively managed Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Division March 19, 2009 12;2 Managed by UT... Business Opportunities African American Energy Consumption Energy at a ... Source: Controlled Fusion Atomic Data Center (CFADC)...

  3. E-Print Network 3.0 - american pain society Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of Pain, vol. 5... , "Examining the validity, reliability, and preference of three pediatric pain measurement tools in African-American... Abstract-- Pain assessment is of...

  4. American Black Bear: Ursus americanus

    E-Print Network [OSTI]

    Gray, Matthew

    & Delisting (Bowker and Jacobson 1995) one each in the Tensas and Atchafalaya River Basins; 2. Establishment and interconnecting corridors that support each of the two viable subpopulations used as justification for delisting

  5. In Celebration of Black History Month, Energy Secretary Moniz...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    African Art Dr. Cole Discuss the Art of Science February 23, 2015 - 1:50am Addthis News Media Contact 202 586 4940 RSVP@hq.doe.gov In Celebration of Black History Month, Energy...

  6. The Historically Black Colleges and Universities/Minority Institutions Environmental Technology and Waste Management Consortium annual report, 1990--1991

    SciTech Connect (OSTI)

    NONE

    1991-12-31T23:59:59.000Z

    The HBCU/MI Environmental Technology and Waste Management Consortium was established in January 1990, through a Memorandum of Understanding (MOU) among the member institutions. This group of research-oriented Historically Black Colleges and Universities and Minority Institutions (HBCU/MI) agreed to work together to initiate research, technology development and education programs to address the nation`s critical environmental problems. As a group the HBCU/MI Consortium is uniquely positioned to reach women and the minority populations of African Americans, Hispanics and American Indians. As part of their initial work, they developed the Research, Education, and Technology Transfer (RETT) Plan to actualize the Consortium`s guiding principles. In addition to developing a comprehensive research agenda, four major programs were begun to meet these goals. This report summarizes the 1990--1991 progress.

  7. Adversarial Diplomacy and African American Politics

    E-Print Network [OSTI]

    Williams II, Ronald Cartell

    2011-01-01T23:59:59.000Z

    work. See, for example, Andrew Norman, Robert Mugabe and theMissouri Press, 1985. Norman, Andrew. Robert Mugabe and the

  8. Adversarial Diplomacy and African American Politics

    E-Print Network [OSTI]

    Williams II, Ronald Cartell

    2011-01-01T23:59:59.000Z

    during the administration of Jimmy Carter compared to that154. Louis Martin, interview, 10 December 1980, Jimmy CarterPapers, Jimmy Carter Presidential Library, Atlanta, GA,

  9. “What Don’t Kill Me Makes Me Stronger”: Black Women’s Narratives Concerning Their Low Rates of Suicide

    E-Print Network [OSTI]

    Spates, Kamesha S

    2009-07-28T23:59:59.000Z

    Americans through discrimination and racism evokes feelings of rejection and anger. However, Hedin claims that unlike whites, instead of becoming suicidal, African Americans may instead turn their rage outward, thus more likely becoming homicidal...

  10. African American Studies & Research Center and Latin American & Latino Studies

    E-Print Network [OSTI]

    Pittendrigh, Barry

    Jamison, Indiana University, Bloomington, IN Carving New Lives in Suriname: Design Motifs in the Maroon

  11. Final Report: African Power/Energy and Environmental Development Plan, July 1, 1994 - August 21, 1999

    SciTech Connect (OSTI)

    Butler, John M.

    1999-08-21T23:59:59.000Z

    In 1994 AEF signed a Cooperative Agreement with DOE to address a program called the African Power /Energy and Environmental Development Plan. The Program initially addressed five area: (1) Historical Black Colleges and Universities Energy/Environmental Program; (2) The Department of Energy and United States Private Industry Africa Program; (3) The Annual United States Energy Study Tour; (4) South African Training Program, and (5) South African Environmental Program. The programs were implemented in conjunction with DOE, institutions, agencies and the private sector support in the USA and within African nations. AEF has worked with government and technical representatives from 13 African nations and expanded the program to address sponsorship of South African students in Historical Black Colleges and Universities, supporting DOE trade missions through participation and planning, and giving presentations in the U.S., and Africa regarding business opportunities in the African energy sector. The programs implemented have also opened doors for the US private sector to seek business opportunities in Africa and for African nations to gain exposure to US products and services.

  12. Black Holes

    E-Print Network [OSTI]

    P. K. Townsend

    1997-07-04T23:59:59.000Z

    Lecture notes for a 'Part III' course 'Black Holes' given in DAMTP, Cambridge. The course covers some of the developments in Black Hole physics of the 1960s and 1970s.

  13. Let the Exhorter Speak: Black Masculinity and the Slave Narrative Tradition

    E-Print Network [OSTI]

    Mack, Jeffery Dwayne

    2009-06-11T23:59:59.000Z

    African American culture has often been seen as an ideological concept that emanates from the history of a people. It is an inclusive concept that represents, according to Houston A. Baker, "a whole way of life." In order ...

  14. An Introduction to the Letters of Isaiah Moteka: the correspondence of a twentieth-century South African Zionist minister

    E-Print Network [OSTI]

    Cabrita, Joel

    2014-04-09T23:59:59.000Z

    worldwide black diaspora (Campbell 1998, Vinson 2012). Moteka’s letters, by contrast, reveal an epistolary network marked by its racial inclusivity, connecting both whites and blacks. It is true that letters are frequently linked to the emergence... human race could be understood literally (Kidd 2006: 128). In 1901, Dowie asserted: ‘White man, black man, yellow man, red man, brown man, we all have the same father.’1 And in the context of the period’s debate about the role of African...

  15. E-Print Network 3.0 - american men newly Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Women Men Women Total... students. Hispanic Caucasian Unknown Grand TotalNonresident alien Black American Indian Asian 12; Source: Rhode Island, University of - Rhode Island...

  16. The Black Male Youth Academy: Understanding the impact of a critical literacy intervention program on underserved youth

    E-Print Network [OSTI]

    Scorza, D'Artagnan

    2013-01-01T23:59:59.000Z

    of your participation in the Black Male Youth Academy? 5.recommend the Black Male Youth Academy to your peers? PleaseJournal of the American Academy of Child & Adolescent

  17. Stories of the Unheard: A Case Study of Five Mexican American Dropouts Labeled as Demonstrating Learning Disabilities

    E-Print Network [OSTI]

    Villafranca, Darlene 1975-

    2012-11-27T23:59:59.000Z

    APPENDIX F..................................................................................................... 224 APPENDIX G .................................................................................................... 226 APPENDIX H... schools (Appendix H). For instance, the dropout rates for Texas 7th-12th graders in 2010-2011 were as follows: Whites, 16.2%; African American, 20.7%; Mexican American, 60.3%; American Indian, 0.6%; Asian, 1.1%; Pacific Islanders,.1%; Economically...

  18. RESEARCH ARTICLE Open Access The imprint of the Slave Trade in an African

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    RESEARCH ARTICLE Open Access The imprint of the Slave Trade in an African American population: Retracing the genetic histories of the descendant populations of the Slave Trade (16th -19th centuries in the current day Surinam. They represent an original ethnic group with a highly blended culture. Uniparental

  19. A southern black community comes of age: black San Antonio in the Great Depression, 1930-1941

    E-Print Network [OSTI]

    Jackson, Charles Christopher

    1989-01-01T23:59:59.000Z

    A&M University Press, 1984) compares the Depression This thesis follows the format of the Journal of 9 t ~Ht experiences of black, white, and Mexican American women of San Antonio. Judy Kaaz Doyle's "Maury Maverick and Racial Politics in San...A SOUTHERN BLACK COMMUNITY COMES OF AGE: BLACK SAN ANTONIO IN THE GREAT DEPRESSION, 1930-1941 A Thesis by CHARLES CHRISTOPHER JACKSON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  20. African oil plays

    SciTech Connect (OSTI)

    Clifford, A.J. (BHP Petroleum, Melbourne, Victoria (Australia))

    1989-09-01T23:59:59.000Z

    The vast continent of Africa hosts over eight sedimentary basins, covering approximately half its total area. Of these basins, only 82% have entered a mature exploration phase, 9% have had little or no exploration at all. Since oil was first discovered in Africa during the mid-1950s, old play concepts continue to bear fruit, for example in Egypt and Nigeria, while new play concepts promise to become more important, such as in Algeria, Angola, Chad, Egypt, Gabon, and Sudan. The most exciting developments of recent years in African oil exploration are: (1) the Gamba/Dentale play, onshore Gabon; (2) the Pinda play, offshore Angola; (3) the Lucula/Toca play, offshore Cabinda; (4) the Metlaoui play, offshore Libya/Tunisia; (5) the mid-Cretaceous sand play, Chad/Sudan; and (6) the TAG-I/F6 play, onshore Algeria. Examples of these plays are illustrated along with some of the more traditional oil plays. Where are the future oil plays likely to develop No doubt, the Saharan basins of Algeria and Libya will feature strongly, also the presalt of Equatorial West Africa, the Central African Rift System and, more speculatively, offshore Ethiopia and Namibia, and onshore Madagascar, Mozambique, and Tanzania.

  1. The Graduate Certificate in African Diaspora

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    to their di- asporic conditions. A successful recipi- ent of a Graduate Certificate in African Diaspora

  2. The Historically Black Colleges and Universities/Minority Institutions Environmental Technology Consortium annual report 1994--1995

    SciTech Connect (OSTI)

    NONE

    1998-07-01T23:59:59.000Z

    The HBCU/MI ET Consortium was established in January 1990, through a Memorandum of Understanding (MOU) among its member institutions. This group of research oriented Historically Black Colleges and Universities and Minority Institutions (HBCU/MIs) agreed to work together to initiate or revise education programs, develop research partnerships with public and private sector organizations, and promote technology development to address the nation`s critical environmental contamination problems. The Consortium`s Research, Education and Technology Transfer (RETT) Plan became the working agenda. The Consortium is a resource for collaboration among the member institutions and with federal an state agencies, national and federal laboratories, industries, (including small businesses), majority universities, and two and four-year technical colleges. As a group of 17 institutions geographically located in the southern US, the Consortium is well positioned to reach a diverse group of women and minority populations of African Americans, Hispanics and American Indians. This Report provides a status update on activities and achievements in environmental curriculum development, outreach at the K--12 level, undergraduate and graduate education, research and development, and technology transfer.

  3. african black caribbean: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SUPERVISION IN LATIN AMERICA AND THE CARIBBEAN CiteSeer Summary: This paper analyzes the pros and cons of both the integrated and the specialized approaches to financial...

  4. A Comparison of Sport Consumption Motives Between American Students and Asian International Students

    E-Print Network [OSTI]

    Kang, Chanho

    2011-02-22T23:59:59.000Z

    and uncommon markets (e.g., African Americans, Hispanic Americans, and Asian- American) as sport consumers of spectator sports (Armstrong, 1998; Clarke & Mannion, 2006, Armstrong, 2002). Although these many unusual market segments have been examined... the motivations for attending sport events, few have examined barriers to such activities. 15 There are exceptions, however, as evidenced by the work from Kwon & Trail (2001), Armstrong (2001), Cunningham & Kwon (2003), and Cunningham and Singer (2009...

  5. The Voices of Five African American Children of Incarcerated Parents

    E-Print Network [OSTI]

    Larke, Altricia

    2014-05-08T23:59:59.000Z

    the participants believe is needed to ensure future success. An important recommendation stemming from the study encourages educators to form positive relationships with these students. Many CIP’s are invisible in schools. In order for educators to identify...

  6. Explorative study of African Americans and internet dating

    E-Print Network [OSTI]

    Spates, Kamesha Sondranek

    2005-02-17T23:59:59.000Z

    . Macintosh, and Dr. Dyer. Most of all, I would like to thank Dr. Murguia for his time, patience, understanding, and encouragement throughout this entire process. To my grandmother and uncle, thank you for all of your support. You both always..., Putnam (2000) states: Members of a community that follows the principle of generalized reciprocity? raking your neighbors leaves before they blow onto your neighbors? yard, lending a dime to a stranger for a parking meter, buying a round of drinks...

  7. Prevalence and correlates of sun protection behaviors among African Americans

    E-Print Network [OSTI]

    Pichon, Latrice Crystal

    2008-01-01T23:59:59.000Z

    K.D. , Elder, J.P. (2007). Sun sensitivity in five USC. A. , Velicer, W. F. , Sun, X. , Fava, J. L. , et al. (H. K. , & Nadel, M. (1997). Sun protection behaviors of the

  8. african american undergraduate: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Science and Engineering Mathematics Websites Summary: Undergraduate Computational Science and Engineering Education in the USA Peter Turner www - Computational Physics @...

  9. Engaging African Americans in STEM Education | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelinesProvedDecember 2005DepartmentDecember 2011DistrictLLC | Department of Energy

  10. A Proclamation: President Obama on National African American History Month,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up from theDepartment(October-DecemberBasedToward a More Secure andMotors2012 |

  11. National African American History Month, 2013: A Presidential Proclamation

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.eps MoreWSRC-STI-2007-00250ThisMarsh MoreDepartmentIt's U.S.NatalieNathan|

  12. carleton.ca African Studies

    E-Print Network [OSTI]

    Dawson, Jeff W.

    of Senegal and Gavin Hood of South Africa (whose film Tsotsi won a 2005 Academy Award also provided powerful voices speaking out in literature and film about racism, gender relations. The African Studies program will offer you a window into this rich and diverse continent, and an opportunity

  13. Common Data Set 2011-2012 2011-2012 Common Data Set

    E-Print Network [OSTI]

    Royer, Dana

    "Nonresident aliens." Complete the "Total Undergraduates" column only if you cannot provide data for the first aliens 67 216 Hispanic 95 274 Black or African American

  14. E-Print Network 3.0 - asian american women Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    for Education Statistics IPEDS Data Center Summary: Total men 0 Women Nonresident alien 0 Black, non-Hispanic 0 American IndianAlaska Native 0 Asian... Total men Women...

  15. Black/brown cooperation and conflict in the education policymaking process

    E-Print Network [OSTI]

    Rocha, Rene Rolando

    2006-10-30T23:59:59.000Z

    for municipal employment through a series of simple and partial correlations, which only allows her to test whether municipalities with a larger number of African-American employees tend to employ less Latinos and vice versa. McClain?s study does...

  16. Study of the South African nanotechnology system.

    E-Print Network [OSTI]

    Van der Merwe, Derrick Louis

    2010-01-01T23:59:59.000Z

    ??The study of the nanotechnology system in South Africa is an analysis of the South African nanotechnology innovation system, with a discussion of background information… (more)

  17. african cichlid fishes: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Page Topic Index 1 Somatostatin Regulates Aggressive Behavior in an African Cichlid Fish Biology and Medicine Websites Summary: be- havioral states. In the African cichlid fish...

  18. Book review of: Living with Lynching: African American Lynching Plays, Performance, and Citizenship, 1890–1930. By Koritha Mitchell. Urbana: University of Illinois Press, 2011. Gender and Lynching: The Politics of Memory. Edited by Evelyn M. Simien. Basingstoke: Palgrave Macmillan, 2011.

    E-Print Network [OSTI]

    Alexandre, Sandy

    Between 1890 and 1930, while most white Americans were invested in what they wanted lynching to clearly and singularly denote—what Robyn Wiegman so aptly describes as “the specular assurance that the racial threat...has ...

  19. Black Pine Engineering

    Broader source: Energy.gov [DOE]

    Black Pine Engineering is commercializing a disruptive technology in the turbomachinery industry. Using a patented woven composite construction, Black Pine Engineering can make turbomachines (turbines, compressors) that are cheaper and lighter than competing technologies. Using this technology, Black Pine Engineering will sell turbo-compressors which solve the problem of wasted steam in geothermal power plants.

  20. The lost revolution : capitalism, democracy and black citizenship in early twentieth-century America's biggest race conflicts

    E-Print Network [OSTI]

    Butler, Katonio A. (Katonio Arthella)

    2007-01-01T23:59:59.000Z

    This new racial conflict over the future of blacks' social, political and economic self determination became an inescapable "trial by fire" for American democracy. Throughout the United States, W.E.B. Du Bois' "New Negroes," ...

  1. African Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWaterBrasil JumpAerowatt Energies Jump to:Africa-EconomicAfrican Energy

  2. Black Hole Chemistry

    E-Print Network [OSTI]

    David Kubiznak; Robert B. Mann

    2014-04-08T23:59:59.000Z

    The mass of a black hole has traditionally been identified with its energy. We describe a new perspective on black hole thermodynamics, one that identifies the mass of a black hole with chemical enthalpy, and the cosmological constant as thermodynamic pressure. This leads to an understanding of black holes from the viewpoint of chemistry, in terms of concepts such as Van der Waals fluids, reentrant phase transitions, and triple points. Both charged and rotating black holes exhibit novel chemical-type phase behaviour, hitherto unseen.

  3. Asian American and African American masculinities : race, citizenship, and culture in post-civil rights

    E-Print Network [OSTI]

    Chon-Smith, Chong

    2006-01-01T23:59:59.000Z

    Eroticized Asian in Gay Male Porn,” in Q&A: Queer in AsianEroticized Asian in Gay Male Porn. ” In Q&A: Queer in AsianEroticized Asian in Gay Male Porn,” in Q&A: Queer in Asian

  4. Asian American and African American masculinities : race, citizenship, and culture in post-civil rights

    E-Print Network [OSTI]

    Chon-Smith, Chong

    2006-01-01T23:59:59.000Z

    2001. For a discussion of fandom and leisure using classin soccer or Australian fandom in rugby. See Alan Bairner,

  5. Asian American and African American masculinities : race, citizenship, and culture in post-civil rights

    E-Print Network [OSTI]

    Chon-Smith, Chong

    2006-01-01T23:59:59.000Z

    sword can defeat me? ” Wu-Tang Clan, “Bring Da Ruckus. ” “with underground pioneers the Wu-Tang Clan, who assert in 36

  6. The Insistence Upon Community in the Contemporary Afro-American Novel

    E-Print Network [OSTI]

    Schultz, Elizabeth A.

    1979-01-01T23:59:59.000Z

    ELIZABETH A. SCHULTZ The Insistence Upon Community in the Contemporary Afro-American Novel BIGGER THOMAS WAITS DEFIANTLY AND ALONE for death at the conclusion of Richard Wright's Native Son (1940). The narrator of Ralph Ellison's Invisible Man...). Elizabeth A. Schultz is associate professor of English at the University of Kansas and associate ditor of American Studies. In addition to articles on black American literature and music, Professor Schultz has published several poems, short stories...

  7. Bicycling Black Rings

    E-Print Network [OSTI]

    Elvang, Henriette

    2008-01-01T23:59:59.000Z

    We present detailed physics analyses of two different 4+1-dimensional asymptotically flat vacuum black hole solutions with spin in two independent planes: the doubly spinning black ring and the bicycling black ring system ("bi-rings"). The latter is a new solution describing two concentric orthogonal rotating black rings which we construct using the inverse scattering technique. We focus particularly on extremal zero-temperature limits of the solutions. Such limits exist for both types of solutions; for the bi-rings it is obtained when the two rings drag each other to extremality through the effect of gravitational frame-dragging. We construct the phase diagram of currently known zero-temperature vacuum black hole solutions with a single event horizon, and discuss the non-uniqueness introduced by more exotic black hole configurations such as bi-rings and multi-ring saturns.

  8. Bicycling Black Rings

    E-Print Network [OSTI]

    Henriette Elvang; Maria J. Rodriguez

    2008-01-25T23:59:59.000Z

    We present detailed physics analyses of two different 4+1-dimensional asymptotically flat vacuum black hole solutions with spin in two independent planes: the doubly spinning black ring and the bicycling black ring system ("bi-rings"). The latter is a new solution describing two concentric orthogonal rotating black rings which we construct using the inverse scattering technique. We focus particularly on extremal zero-temperature limits of the solutions. We construct the phase diagram of currently known zero-temperature vacuum black hole solutions with a single event horizon, and discuss the non-uniqueness introduced by more exotic black hole configurations such as bi-rings and multi-ring saturns.

  9. A Black Hole Levitron

    E-Print Network [OSTI]

    Xerxes D. Arsiwalla; Erik P. Verlinde

    2009-02-02T23:59:59.000Z

    We study the problem of spatially stabilising four dimensional extremal black holes in background electric/magnetic fields. Whilst looking for stationary stable solutions describing black holes kept in external fields we find that taking a continuum limit of Denef et al's multi-center solutions provides a supergravity description of such backgrounds within which a black hole can be trapped in a given volume. This is realised by levitating a black hole over a magnetic dipole base. We comment on how such a construction resembles a mechanical Levitron.

  10. Dynamics of black holes

    E-Print Network [OSTI]

    Sean A. Hayward

    2009-02-28T23:59:59.000Z

    This is a review of current theory of black-hole dynamics, concentrating on the framework in terms of trapping horizons. Summaries are given of the history, the classical theory of black holes, the defining ideas of dynamical black holes, the basic laws, conservation laws for energy and angular momentum, other physical quantities and the limit of local equilibrium. Some new material concerns how processes such as black-hole evaporation and coalescence might be described by a single trapping horizon which manifests temporally as separate horizons.

  11. "Hybrid" Black Holes

    E-Print Network [OSTI]

    Valeri P. Frolov; Andrei V. Frolov

    2014-12-30T23:59:59.000Z

    We discuss a solution of the Einstein equations, obtained by gluing the external Kerr metric and the internal Weyl metric, describing an axisymmetric static vacuum distorted black hole. These metrics are glued at the null surfaces representing their horizons. For this purpose we use the formalism of massive thin null shells. The corresponding solution is called a "hybrid" black hole. The massive null shell has an angular momentum which is the origin of the rotation of the external Kerr spacetime. At the same time, the shell distorts the geometry inside the horizon. The inner geometry of the "hybrid" black hole coincides with the geometry of the interior of a non-rotating Weyl-distorted black hole. Properties of the "hybrid" black holes are briefly discussed.

  12. Smithsonian American Art Museum 1 Smithsonian American Art Museum

    E-Print Network [OSTI]

    Mathis, Wayne N.

    Smithsonian American Art Museum 1 Smithsonian American Art Museum INVENTORY OF AMERICAN PAINTINGS): ___________________________________ _____________________________________________________________________________ EXECUTION DATE (if approximate, precede with circa): _____________________________ MEDIA oil pastel for contributing information to the national Inventory of American Paintings. Address completed reports

  13. American Academy of Sleep Medicine American Academy of Sleep Medicine

    E-Print Network [OSTI]

    Goldman, Steven A.

    © American Academy of Sleep Medicine American Academy of Sleep Medicine The following product has been developed by the American Academy of Sleep Medicine Copyright © 2003 American Academy of Sleep: (708) 492-0943 Visit Us at www.aasmnet.org #12;© American Academy of Sleep Medicine American Academy

  14. Communication Factors Affecting African Policymakers' Decisions about Agricultural Biotechnology

    E-Print Network [OSTI]

    Begashaw, Belay Ejigu

    2010-10-12T23:59:59.000Z

    The purpose of this study was to develop a model for impacting decisions on agricultural biotechnology practices in food production among African policymakers. The research focused on three African countries, namely, South Africa, Malawi and Ghana...

  15. Wildlife Monitoring and Conservation in a West African Protected Area

    E-Print Network [OSTI]

    Burton, Andrew Cole

    2010-01-01T23:59:59.000Z

    Is community-based ecotourism a good use of biodiversityThe potential contribution of ecotourism to African wild dog

  16. Charging Black Saturn?

    E-Print Network [OSTI]

    Brenda Chng; Robert Mann; Eugen Radu; Cristian Stelea

    2008-10-28T23:59:59.000Z

    We construct new charged static solutions of the Einstein-Maxwell field equations in five dimensions via a solution generation technique utilizing the symmetries of the reduced Lagrangian. By applying our method on the multi-Reissner-Nordstrom solution in four dimensions, we generate the multi-Reissner-Nordstrom solution in five dimensions. We focus on the five-dimensional solution describing a pair of charged black objects with general masses and electric charges. This solution includes the double Reissner-Nordstrom solution as well as the charged version of the five-dimensional static black Saturn. However, all the black Saturn configurations that we could find present either a conical singularity or a naked singularity. We also obtain a non-extremal configuration of charged black strings that reduces in the extremal limit to a Majumdar-Papapetrou like solution in five dimensions.

  17. Charged Schrodinger black holes

    E-Print Network [OSTI]

    Adams, Allan

    We construct charged and rotating asymptotically Schrödinger black hole solutions of type IIB supergravity. We begin by obtaining a closed-form expression for the null Melvin twist of a broad class of type IIB backgrounds, ...

  18. YZC Animal of the Month, September 2012 African Elephant

    E-Print Network [OSTI]

    YZC Animal of the Month, September 2012 African Elephant Loxodonta africana Go to the lower gallery. The African Elephant is the largest land-living animal alive today. The biggest animal on record measured up. University Museum of Zoology, Cambridge September 2012 African Elephants live in a range

  19. Global biofuel drive raises risk of eviction for African farmers

    E-Print Network [OSTI]

    Global biofuel drive raises risk of eviction for African farmers African farmers risk being forced from their lands by investors or government projects as global demand for biofuels encourages changes at risk if African farmland is turned over to growing crops for biofuel. With growing pressure to find

  20. Helical superconducting black holes

    E-Print Network [OSTI]

    Aristomenis Donos; Jerome P. Gauntlett

    2012-05-17T23:59:59.000Z

    We construct novel static, asymptotically $AdS_5$ black hole solutions with Bianchi VII$_0$ symmetry that are holographically dual to superconducting phases in four spacetime dimensions with a helical p-wave order. We calculate the precise temperature dependence of the pitch of the helical order. At zero temperature the black holes have vanishing entropy and approach domain wall solutions that reveal homogenous, non-isotropic dual ground states with emergent scaling symmetry.

  1. On Black Hole Entropy

    E-Print Network [OSTI]

    Ted Jacobson; Gungwon Kang; Robert C. Myers

    1994-01-03T23:59:59.000Z

    Two techniques for computing black hole entropy in generally covariant gravity theories including arbitrary higher derivative interactions are studied. The techniques are Wald's Noether charge approach introduced recently, and a field redefinition method developed in this paper. Wald's results are extended by establishing that his local geometric expression for the black hole entropy gives the same result when evaluated on an arbitrary cross-section of a Killing horizon (rather than just the bifurcation surface). Further, we show that his expression for the entropy is not affected by ambiguities which arise in the Noether construction. Using the Noether charge expression, the entropy is evaluated explicitly for black holes in a wide class of generally covariant theories. Further, it is shown that the Killing horizon and surface gravity of a stationary black hole metric are invariant under field redefinitions of the metric of the form $\\bar{g}_{ab}\\equiv g_{ab} + \\Delta_{ab}$, where $\\Delta_{ab}$ is a tensor field constructed out of stationary fields. Using this result, a technique is developed for evaluating the black hole entropy in a given theory in terms of that of another theory related by field redefinitions. Remarkably, it is established that certain perturbative, first order, results obtained with this method are in fact {\\it exact}. The possible significance of these results for the problem of finding the statistical origin of black hole entropy is discussed.}

  2. Roadmap: Pan-African Studies Pan-African Studies Bachelor of Arts [AS-BA-PAS-PAS

    E-Print Network [OSTI]

    Sheridan, Scott

    Roadmap: Pan-African Studies ­ Pan-African Studies ­ Bachelor of Arts [AS-BA-PAS-PAS] College: 22-Apr-13/LNHD This roadmap is a recommended semester-by-semester plan of study for this major Non-PAS Elective 3 General Elective (upper division) 9 #12;Roadmap: Pan-African Studies ­ Pan

  3. North American Electric Reliability Corporation Interconnections...

    Office of Environmental Management (EM)

    North American Electric Reliability Corporation Interconnections North American Electric Reliability Corporation Interconnections Map of the North American Electric Reliability...

  4. Ultrastructure of the Reproductive System of the Black Swamp Snake (Seminatrix pygaea). VI. Anterior

    E-Print Network [OSTI]

    Sever, David M.

    Ultrastructure of the Reproductive System of the Black Swamp Snake (Seminatrix pygaea). VI of the North American natricine snake Seminatrix pygaea are described using light and electron micros- copy is a glycoprotein. Overall, the characteristics of the ante- rior testicular ducts of this snake are concordant

  5. Gasification of black liquor

    SciTech Connect (OSTI)

    Kohl, A.L.

    1987-07-28T23:59:59.000Z

    A process is described for treating a concentrated aqueous black liquor carbonaceous material and alkali metal sulfur compounds to form a combustible gas and a sulfide-rich melt comprising: (a) providing a gasifier vessel maintained at a pressure of from about 1 to 50 atmospheres and containing a relatively shallow molten salt pool at its bottom within a sump equipped with an overflow discharge; (b) introducing into the top of the drying zone the concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds; (c) evaporating water from the concentrated aqueous black liquor in the drying zone by direct contact of the aqueous black liquor with the hot gas rising from the gasification zone to produce dried black liquor solids; (d) introducing a first portion of an oxygen-containing gas into the gas space in the gasification zone located below the drying zone immediately above the molten salt pool to partially oxidize and gasify a fraction of the carbonaceous material in the dried black liquor solids falling through the zone to form a hot combustible gas; (e) introducing a second portion of the oxygen-containing gas beneath the surface of the molten salt pool in an amount sufficient to cause gasification of essentially all carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool; (f) withdrawing the cooled combustible gas having a higher heating value of at least about 90 Btu/scf (dry basis) from an upper portion of the drying zone; and (g) withdrawing from the overflow discharge in the molten salt reduction zone a melt in which the sulfur content is predominantly in the form of alkali metal sulfide.

  6. Black holes at accelerators.

    E-Print Network [OSTI]

    Webber, Bryan R

    ar X iv :h ep -p h/ 05 11 12 8v 3 6 A pr 2 00 6 Black Holes at Accelerators Bryan Webber Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, UK In theories with large extra dimensions and TeV-scale gravity, black holes... 2000 3000 Missing ET (GeV) Ar bi tra ry S ca le p p ? QCD SUSY 5 TeV BH (n=6) 5 TeV BH (n=2) (PT > 600 GeV) (SUGRA point 5) Figure 10: Missing transverse energy for various processes at the LHC. 4.2. Event Characteristics Turning from single...

  7. Extremal black disks in QCD

    E-Print Network [OSTI]

    Alexey V. Popov

    2008-05-12T23:59:59.000Z

    We argue that in the high energy QCD a true black disk wave function necessarily contains many quarks. This corresponds to necessity of non-vacuum reggeon loops in formation of a black disk. The result comes from decomposition of the black disk S-matrix in characters on group manifold.

  8. Black holes and black strings in plane waves

    E-Print Network [OSTI]

    Julian Le Witt; Simon F. Ross

    2009-10-30T23:59:59.000Z

    We investigate the construction of black holes and black strings in vacuum plane wave spacetimes using the method of matched asymptotic expansions. We find solutions of the linearised equations of motion in the asymptotic region for a general source on a plane wave background. We observe that these solutions do not satisfy our previously defined conditions for being asymptotically plane wave. Hence, the space of asymptotically plane wave solutions is restricted. We consider the solution in the near region, treating the plane wave as a perturbation of a black object, and find that there is a regular black string solution but no regular black hole solution.

  9. Gasification of black liquor

    DOE Patents [OSTI]

    Kohl, Arthur L. (Woodland Hills, CA)

    1987-07-28T23:59:59.000Z

    A concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds is treated in a gasifier vessel containing a relatively shallow molten salt pool at its bottom to form a combustible gas and a sulfide-rich melt. The gasifier vessel, which is preferably pressurized, has a black liquor drying zone at its upper part, a black liquor solids gasification zone located below the drying zone, and a molten salt sulfur reduction zone which comprises the molten salt pool. A first portion of an oxygen-containing gas is introduced into the gas space in the gasification zone immediatley above the molten salt pool. The remainder of the oxygen-containing gas is introduced into the molten salt pool in an amount sufficient to cause gasification of carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool. The total amount of the oxygen-containing gas introduced both above the pool and into the pool constitutes between 25 and 55% of the amount required for complete combustion of the black liquor feed. A combustible gas is withdrawn from an upper portion of the drying zone, and a melt in which the sulfur content is predominantly in the form of alkali metal sulfide is withdrawn from the molten salt sulfur reduction zone.

  10. Gasification of black liquor

    DOE Patents [OSTI]

    Kohl, A.L.

    1987-07-28T23:59:59.000Z

    A concentrated aqueous black liquor containing carbonaceous material and alkali metal sulfur compounds is treated in a gasifier vessel containing a relatively shallow molten salt pool at its bottom to form a combustible gas and a sulfide-rich melt. The gasifier vessel, which is preferably pressurized, has a black liquor drying zone at its upper part, a black liquor solids gasification zone located below the drying zone, and a molten salt sulfur reduction zone which comprises the molten salt pool. A first portion of an oxygen-containing gas is introduced into the gas space in the gasification zone immediately above the molten salt pool. The remainder of the oxygen-containing gas is introduced into the molten salt pool in an amount sufficient to cause gasification of carbonaceous material entering the pool from the gasification zone but not sufficient to create oxidizing conditions in the pool. The total amount of the oxygen-containing gas introduced both above the pool and into the pool constitutes between 25 and 55% of the amount required for complete combustion of the black liquor feed. A combustible gas is withdrawn from an upper portion of the drying zone, and a melt in which the sulfur content is predominantly in the form of alkali metal sulfide is withdrawn from the molten salt sulfur reduction zone. 2 figs.

  11. Black Hole Thermodynamics Today

    E-Print Network [OSTI]

    Ted Jacobson

    1998-01-07T23:59:59.000Z

    A brief survey of the major themes and developments of black hole thermodynamics in the 1990's is given, followed by summaries of the talks on this subject at MG8 together with a bit of commentary, and closing with a look towards the future.

  12. Combustion of black liquor

    SciTech Connect (OSTI)

    Mullen, W.T.

    1989-08-15T23:59:59.000Z

    This patent describes an improvement in the combustion of black liquor in an existing Tomlison recovery boiler unit in which black liquor is sprayed into a furnace in which it is successively dried, pyrolyzed and converted to a bed of solid carbonaceous residue, using a primary air stream and a secondary air stream and the residue is subsequently converted to a smelt. The improvement comprises: the addition of between an effective amount up to 5% oxygen by volume to the primary air stream directed at the bed of solid carbonaceous residue, the amount of oxygen added being sufficient to increase the adiabatic flame temperature, the combustion rate of the solid carbonaceous material, the rate of pyrolysis, the temperature in the lower portion of the furnace, the the drying rate of black liquor droplets, and to decrease the temperature of the gases entering the heat transfer surfaces in the upper portion of the furnace and the rate of deposit formation on the surfaces and wherein the amount of black liquor combusted is increased as compared with the amount combusted in the same furnace operated without the addition of oxygen to the primary air.

  13. Quantum black hole inflation

    E-Print Network [OSTI]

    M. B. Altaie

    2001-05-07T23:59:59.000Z

    In this paper we follow a new approach for particle creation by a localized strong gravitational field. The approach is based on a definition of the physical vacuum drawn from Heisenberg uncertainty principle. Using the fact that the gravitational field red-shifts the frequency modes of the vacuum, a condition on the minimum stregth of the gravitational field required to achieve real particle creation is derived. Application of this requirement on a Schwartzchid black hole resulted in deducing an upper limit on the region, outside the event horizon, where real particles can be created. Using this regional upper limit, and considering particle creation by black holes as a consequence of the Casimir effect, with the assumption that the created quanta are to be added to the initial energy, we deduce a natural power law for the development of the event horizon, and consequently a logarithmic law for the area spectrum of an inflating black hole. Application of the results on a cosmological model shows that if we start with a Planck-dimensional black hole, then through the process of particle creation we end up with a universe having the presently estimated critical density. Such a universe will be in a state of eternal inflation.

  14. Black brane steady states

    E-Print Network [OSTI]

    Amado, Irene

    2015-01-01T23:59:59.000Z

    We follow the evolution of an asymptotically AdS black brane with a fixed temperature gradient at spatial infinity until a steady state is formed. The resulting energy density and energy flux of the steady state in the boundary theory are compared to a conjecture on the behavior of steady states in conformal field theories. Very good agreement is found.

  15. GROWTH OF SOUTH AFRICAN AFRICA' ~-' ,, I

    E-Print Network [OSTI]

    GROWTH OF SOUTH AFRICAN FISHERIES -SQUTH-: WEST .-' AFRICA' ~-' ,, I I , I :--. .,' UN I .............................................. Regrouping of Interests ······························ Fisheries Development Corporation of South Africa, Ltd and the trawling interests, respectively. The quasi-official Fisheries Develop- ment Corporation of South Africa

  16. Voices of Four African American Female Clergy and Their Perceptions of Gender, Equity, and Leadership Styles in the African American Urban Church

    E-Print Network [OSTI]

    Ogletree, Evelyn 1954-

    2012-11-30T23:59:59.000Z

    . This phenomenological study identified the lived experiences of each participant through her personal narrative, which reflects her path from birth to present. Participants’ experiences as a senior pastor provided a personal historical path of the journey of female...

  17. Selecting renal replacement therapies: what do African American and non-African American patients and their families think others should know? A mixed methods study

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    making about renal replacement therapies. Qual Health ResOpen Access Selecting renal replacement therapies: what doneed to inform renal replacement therapy (RRT) decisions.

  18. BLACK HOLE AURORA POWERED BY A ROTATING BLACK HOLE

    SciTech Connect (OSTI)

    Takahashi, Masaaki [Department of Physics and Astronomy, Aichi University of Education, Kariya, Aichi 448-8542 (Japan); Takahashi, Rohta, E-mail: takahasi@phyas.aichi-edu.ac.j [Cosmic Radiation Laboratory, Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)

    2010-05-15T23:59:59.000Z

    We present a model for high-energy emission sources generated by a standing magnetohydrodynamical (MHD) shock in a black hole magnetosphere. The black hole magnetosphere would be constructed around a black hole with an accretion disk, where a global magnetic field could be originated by currents in the accretion disk and its corona. Such a black hole magnetosphere may be considered as a model for the central engine of active galactic nuclei, some compact X-ray sources, and gamma-ray bursts. The energy sources of the emission from the magnetosphere are the gravitational and electromagnetic energies of magnetized accreting matters and the rotational energy of a rotating black hole. When the MHD shock generates in MHD accretion flows onto the black hole, the plasma's kinetic energy and the black hole's rotational energy can convert to radiative energy. In this Letter, we demonstrate the huge energy output at the shock front by showing negative energy postshock accreting MHD flows for a rapidly rotating black hole. This means that the extracted energy from the black hole can convert to the radiative energy at the MHD shock front. When an axisymmetric shock front is formed, we expect a ring-shaped region with very hot plasma near the black hole; this would look like an 'aurora'. The high-energy radiation generated from there would carry to us the information for the curved spacetime due to the strong gravity.

  19. Using Digital Technology to Access And Store African Art

    E-Print Network [OSTI]

    Blake, Edwin

    Using Digital Technology to Access And Store African Art Gary Marsden, Katherine Malan & Edwin Blake Collaborative Visual Computing Group, Department of Computer Science, University of Cape Town +27

  20. african developing countries: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    L. 2013-01-01 377 Wildlife Monitoring and Conservation in a West African Protected Area University of California eScholarship Repository Summary: acoustic survey of the...

  1. african environmental samples: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Chem for Health Sciences CH Goldberg, Bennett 2 Sustainability Analysis of African Palm Biodiesel in Ecuador: An Environmental, Socio-cultural, and Artistic Perspective Renewable...

  2. Central African Republic-National Adaptation Plan Global Support...

    Open Energy Info (EERE)

    manual, Publications, Workshop Website http:undp-alm.orgprojectsn Program Start 2013 Country Central African Republic Middle Africa References National Adaptation Plan...

  3. Dolphins and African apes: comparisons of sympatric socio-ecology

    E-Print Network [OSTI]

    Bearzi, Maddalena; Stanford, Craig B.

    2007-01-01T23:59:59.000Z

    Review of sympatric ecology among dolphins and African apesA. 1998. Gorilla ecology and behaviour. EvolutionaryVolume 2: be- haviour, Ecology, and Conservation.Tokyo:

  4. Modelling the South African fresh fruit export supply chain

    E-Print Network [OSTI]

    van Vuuren, Jan H.

    Modelling the South African fresh fruit export supply chain Frank Gerald Ortmann Thesis presented, cooling and transportation. The capacities of packhouses, cold stores and terminals are found

  5. african trypanosomiasis evaluation: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Health Organization reports that African Trypanosomiasis affects mostly poor populations living in remote rural areas of Africa that can be fatal if properly not treated. This...

  6. african animal trypanosomiasis: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Health Organization reports that African Trypanosomiasis affects mostly poor populations living in remote rural areas of Africa that can be fatal if properly not treated. This...

  7. african trypanosomiasis sleeping: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Health Organization reports that African Trypanosomiasis affects mostly poor populations living in remote rural areas of Africa that can be fatal if properly not treated. This...

  8. South African consumer attitudes towards domestic solar power systems.

    E-Print Network [OSTI]

    Adams, Siân Louise

    2012-01-01T23:59:59.000Z

    ??The success of the South African policy to reduce carbon emissions and incorporate solar energy production into the national energy mix is partly dependent on… (more)

  9. The Historically Black Colleges and Universities/Minority Institutions Environmental Technology Consortium annual report, 1991--1992

    SciTech Connect (OSTI)

    NONE

    1992-12-31T23:59:59.000Z

    The member institutions of the Consortium continue to play a significant role in increasing the number of African Americans who enter the environmental professions through the implementation of the Consortium`s RETT Plan for Research, Education, and Technology Transfer. The four major program areas identified in the RETT Plan are as follows: (1) minority outreach and precollege education; (2) undergraduate education and postsecondary training; (3) graduate and postgraduate education and research; and (4) technology transfer.

  10. The international law framework for foreign investment protection: an analysis of African treaty practice.

    E-Print Network [OSTI]

    Lebero, Richard Karugarama

    2012-01-01T23:59:59.000Z

    ??Traditionally, African states have played an active and relevant role in the formulation and development of international investment law. Generally, the contribution of African states… (more)

  11. E-Print Network 3.0 - african penguins spheniscus Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    population monitoring of African Penguins Spheniscus demersus. Endangered Species Research 11: 101... , Harrison JA, Navarro R 2010. The Southern African Reptile...

  12. E-Print Network 3.0 - african coal mining Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    In 2003, the South African synthetic fuel industry consumed 24... of synthetic fuels in South Africa, this must also reflect their coal consumption (Figure 2). South African......

  13. E-Print Network 3.0 - african customs union Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Collection: Physics 31 MOODLEY 317 Introduction Summary: from academia; govern- ment; trade unions; employers' asso- ciations; the South African Furniture... African small wood...

  14. E-Print Network 3.0 - african coal sources Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    In 2003, the South African synthetic fuel industry consumed 24... of synthetic fuels in South Africa, this must also reflect their coal consumption (Figure 2). South African......

  15. E-Print Network 3.0 - african coal industry Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    In 2003, the South African synthetic fuel industry consumed 24... of synthetic fuels in South Africa, this must also reflect their coal consumption (Figure 2). South African......

  16. E-Print Network 3.0 - apca african palliative Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    african palliative Search Powered by Explorit Topic List Advanced Search Sample search results for: apca african palliative Page: << < 1 2 3 4 5 > >> 1 EFFICIENT FACE CODING IN...

  17. E-Print Network 3.0 - african savannah elephant Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: . The African savannah elephant popu- lation in Kidepo Valley National Park, Uganda: changes in size... Output of Adult Female African Elephants K. S. GOBUSH, B. M....

  18. E-Print Network 3.0 - african medical journals Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Accredited by the South African Department of Education Editor: Chege... Githiora, School of Oriental and African Studies, ... Source: Grant, James D.E. - Fakultt fr...

  19. E-Print Network 3.0 - african food security Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    health... emphases are on preparing new faculty to teach in African universities and on upgrading the qualifications... Study in association with the African Academy of Sciences...

  20. Supermassive Black Holes

    E-Print Network [OSTI]

    Fulvio Melia

    2007-05-10T23:59:59.000Z

    Supermassive black holes have generally been recognized as the most destructive force in nature. But in recent years, they have undergone a dramatic shift in paradigm. These objects may have been critical to the formation of structure in the early universe, spawning bursts of star formation and nucleating proto-galactic condensations. Possibly half of all the radiation produced after the Big Bang may be attributed to them, whose number is now known to exceed 300 million. The most accessible among them is situated at the Center of Our Galaxy. In the following pages, we will examine the evidence that has brought us to this point, and we will understand why many expect to actually image the event horizon of the Galaxy's central black hole within this decade.

  1. Shape of black holes

    E-Print Network [OSTI]

    Clement, María E Gabach

    2015-01-01T23:59:59.000Z

    It is well known that celestial bodies tend to be spherical due to gravity and that rotation produces deviations from this sphericity. We discuss what is known and expected about the shape of black holes' horizons from their formation to their final, stationary state. We present some recent results showing that black hole rotation indeed manifests in the widening of their central regions, limits their global shapes and enforces their whole geometry to be close to the extreme Kerr horizon geometry at almost maximal rotation speed. The results depend only on the horizon area and angular momentum. In particular they are entirely independent of the surrounding geometry of the spacetime and of the presence of matter satisfying the strong energy condition. We also discuss the the relation of this result with the Hoop conjecture.

  2. Smithsonian American Art Museum INVENTORIES OF AMERICAN PAINTING AND SCULPTURE

    E-Print Network [OSTI]

    Mathis, Wayne N.

    Smithsonian American Art Museum INVENTORIES OF AMERICAN PAINTING AND SCULPTURE GUIDELINES FOR REPORTING WORKS The INVENTORIES OF AMERICAN PAINTING AND SCULPTURE were created by the Smithsonian American collections around the country. The database for the Inventories references over 360,000 works from two

  3. Black Pine Circle Project

    SciTech Connect (OSTI)

    Mytko, Christine

    2014-03-31T23:59:59.000Z

    A group of seventh graders from Black Pine Circle school in Berkeley had the opportunity to experience the Advanced Light Source (ALS) as "users" via a collaborative field trip and proposal project. The project culminated with a field trip to the ALS for all seventh graders, which included a visit to the ALS data visualization room, a diffraction demonstration, a beamline tour, and informative sessions about x-rays and tomography presented by ALS scientists.

  4. Black Pine Circle Project

    ScienceCinema (OSTI)

    Mytko, Christine

    2014-09-15T23:59:59.000Z

    A group of seventh graders from Black Pine Circle school in Berkeley had the opportunity to experience the Advanced Light Source (ALS) as "users" via a collaborative field trip and proposal project. The project culminated with a field trip to the ALS for all seventh graders, which included a visit to the ALS data visualization room, a diffraction demonstration, a beamline tour, and informative sessions about x-rays and tomography presented by ALS scientists.

  5. Red-black Tree Jingjing Xia

    E-Print Network [OSTI]

    Chen, Yangjun

    Advanced Algorithm Design Red-black Tree Jingjing Xia #12;Red-Black Tree A red-black tree is a binary search tree, and each node contains one extra field: its color, it can be either black or red of the binary search tree. If a binary search tree satisfies all the following red-black properties, it is a red

  6. Black holes in massive gravity

    E-Print Network [OSTI]

    Babichev, Eugeny

    2015-01-01T23:59:59.000Z

    We review the black hole solutions of the ghost-free massive gravity theory and its bimetric extension and outline the main results on the stability of these solutions against small perturbations. Massive (bi)-gravity accommodates exact black hole solutions, analogous to those of General Relativity. In addition to these solutions, hairy black holes -- solutions with no correspondent in General Relativity -- have been found numerically, whose existence is a natural consequence of the absence of the Birkhoff's theorem in these theories. The existence of extra propagating degrees of freedom, makes the stability properties of these black holes richer and more complex than those of General Relativity. In particular, the bi-Schwarzschild black hole exhibits an unstable spherically symmetric mode, while the bi-Kerr geometry is also generically unstable, both against the spherical mode and against superradiant instabilities. If astrophysical black holes are described by these solutions, the superradiant instability o...

  7. Black Hole's 1/N Hair

    E-Print Network [OSTI]

    Gia Dvali; Cesar Gomez

    2012-03-29T23:59:59.000Z

    According to the standard view classically black holes carry no hair, whereas quantum hair is at best exponentially weak. We show that suppression of hair is an artifact of the semi-classical treatment and that in the quantum picture hair appears as an inverse mass-square effect. Such hair is predicted in the microscopic quantum description in which a black hole represents a self-sustained leaky Bose-condensate of N soft gravitons. In this picture the Hawking radiation is the quantum depletion of the condensate. Within this picture we show that quantum black hole physics is fully compatible with continuous global symmetries and that global hair appears with the strength B/N, where B is the global charge swallowed by the black hole. For large charge this hair has dramatic effect on black hole dynamics. Our findings can have interesting astrophysical consequences, such as existence of black holes with large detectable baryonic and leptonic numbers.

  8. African dry air outbreaks Chidong Zhang and Jeremy Pennington

    E-Print Network [OSTI]

    Zhang, Chidong

    entrainment. It is conceivable that dry air associated with African dust outbreaks also has substantialAfrican dry air outbreaks Chidong Zhang and Jeremy Pennington Rosenstiel School of Marine; accepted 5 August 2004; published 19 October 2004. [1] Dry air outbreaks from Africa into the tropical

  9. Observational Evidence for Black Holes

    E-Print Network [OSTI]

    Ramesh Narayan; Jeffrey E. McClintock

    2014-07-20T23:59:59.000Z

    Astronomers have discovered two populations of black holes: (i) stellar-mass black holes with masses in the range 5 to 30 solar masses, millions of which are present in each galaxy in the universe, and (ii) supermassive black holes with masses in the range 10^6 to 10^{10} solar masses, one each in the nucleus of every galaxy. There is strong circumstantial evidence that all these objects are true black holes with event horizons. The measured masses of supermassive black hole are strongly correlated with properties of their host galaxies, suggesting that these black holes, although extremely small in size, have a strong influence on the formation and evolution of entire galaxies. Spin parameters have recently been measured for a handful of black holes. Based on the data, there is an indication that the kinetic power of at least one class of relativistic jet ejected from accreting black holes may be correlated with black hole spin. If verified, it would suggest that these jets are powered by a generalized Penrose process mediated by magnetic fields.

  10. Black Africans in Barcelona, Spain: An Exploration of Integration into Catalan Society

    E-Print Network [OSTI]

    Osuji, Chinyere

    2006-01-01T23:59:59.000Z

    les minoreis elniques. Lerida, Spain: Universitat de L1eida.6 200 1-2004. Catalunya, Spain: Grinver. SA. Gozalvez Perez,Picanya (Valencia), Spain: Generalitat Valenciana. Makom •

  11. The great American garage

    E-Print Network [OSTI]

    Miller, B. Alex (Brian Alex), 1977-

    2004-01-01T23:59:59.000Z

    How does one explore the suburban home? Go in through the garage, of course. Sales, bands, suicides, and business startups: The suburban garage is the most culturally flexible space in the entire American domestic environment. ...

  12. Asian American women entrepreneurs

    E-Print Network [OSTI]

    Suh, Clara J

    2014-01-01T23:59:59.000Z

    There are an estimated 620,300 firms owned by Asian American women nationwide, and they contribute $105 billion to the U.S. economy. They are also active in Greater Boston's innovation and entrepreneurship communities. ...

  13. American Samoa- Net Metering

    Broader source: Energy.gov [DOE]

    The American Samoa Power Authority (ASPA), a government-owned electric utility, is the only power provider in this U.S. territory of almost 70,000 people. ASPA's "Interconnection and Net Energy...

  14. Why Blue-Collar Blacks Help Less

    E-Print Network [OSTI]

    Smith, Sandra Susan; Young, Kara Alexis

    2013-01-01T23:59:59.000Z

    In Hispanics in the Why Blacks Help Less U.S. Economy, eds.71(1):42-71. Why Blacks Help Less Fernandez, Roberto M. andProblems 49 (1): 11- Why Blacks Help Less Heflin, Coleen M.

  15. Black-white asymmetry in visual perception

    E-Print Network [OSTI]

    Lu, Z.-L.; Sperling, G.

    2012-01-01T23:59:59.000Z

    tion of black and white in human vision. Investi- gativeneural responses to black and white ments are balanced, weand observers. The black– white asymmetry with a ¼ 1.28 is

  16. Why Blue-Collar Blacks Help Less

    E-Print Network [OSTI]

    Smith, Sandra Susan; Young, Kara Alexis

    2013-01-01T23:59:59.000Z

    Exclude Black Men from Blue-Collar Jobs. Berkeley, CA:How Black and Latino Blue Collar Workers Make Decisionsof Sample Respondents Blue-Collar Latinos Blue-Collar Black

  17. RHIC | Black Holes?

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromising Science for1 20115, 2001 MediaBrookhavenBlack Holes at

  18. ARM - Black Forest News

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |NovemberARMContactsARM Engineering6,GermanyBlack Forest News

  19. RHIC | Black Holes?

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, and 323 K.Office ofMayPVREPORTPortalPriceA/4Black

  20. Freedom's Journal and El Clamor Publico: African American and Mexican American Cultural Fronts in Nineteenth-Century Newsprint

    E-Print Network [OSTI]

    Nunez, Arturo Romero

    2010-01-01T23:59:59.000Z

    History Co. , 1890. Print. Beal, Thomas D. Rev. of Freedom'sHistory Co. , 1890. Print. Beal, Thomas D. Rev. of Freedom'sand Rights of All. 5 D. Thomas Beal, “Freedom's Journal: The

  1. Black Stars and Gamma Ray Bursts

    E-Print Network [OSTI]

    Tanmay Vachaspati

    2007-06-08T23:59:59.000Z

    Stars that are collapsing toward forming a black hole but are frozen near the Schwarzschild horizon are termed ``black stars''. Collisions of black stars, in contrast to black hole collisions, may be sources of gamma ray bursts, whose basic parameters are estimated quite simply and are found to be consistent with observed gamma ray bursts. Black star gamma ray bursts should be preceded by gravitational wave emission similar to that from the coalescence of black holes.

  2. The Astrophysical Journal Letters, 740:L42 (4pp), 2011 October 20 doi:10.1088/2041-8205/740/2/L42 C 2011. The American Astronomical Society. All rights reserved. Printed in the U.S.A.

    E-Print Network [OSTI]

    Miller, Cole

    2011. The American Astronomical Society. All rights reserved. Printed in the U.S.A. SUPERMASSIVE BLACK September 29 ABSTRACT Black holes exceeding a billion solar masses have been detected at redshifts greater collapse. The cluster core can then reach a central density high enough for fast mergers of stellar

  3. E-Print Network 3.0 - african elephant loxodonta Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    elephant loxodonta Search Powered by Explorit Topic List Advanced Search Sample search results for: african elephant...

  4. E-Print Network 3.0 - african cichlid fish Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    fish Search Powered by Explorit Topic List Advanced Search Sample search results for: african cichlid fish...

  5. The Economic Partnership Agreements Between the European Union and the African-Caribbean-

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    The Economic Partnership Agreements Between the European Union and the African-Caribbean- Pacific ............................................................................................................................ 33 #12;4 LIST OF ACRONYMS ACP African, Caribbean and Pacific [countries] AEC African Economic Community ECOWAS Economic Community of Western African States EDF European Development Fund EPA Economic

  6. Optical black holes and solitons

    E-Print Network [OSTI]

    Shawn Westmoreland

    2010-12-21T23:59:59.000Z

    We exhibit a static, cylindrically symmetric, exact solution to the Euler-Heisenberg field equations (EHFE) and prove that its effective geometry contains (optical) black holes. It is conjectured that there are also soliton solutions to the EHFE which contain black hole geometries.

  7. Entropy of Lovelock Black Holes

    E-Print Network [OSTI]

    Ted Jacobson; Robert C. Myers

    1993-05-06T23:59:59.000Z

    A general formula for the entropy of stationary black holes in Lovelock gravity theories is obtained by integrating the first law of black hole mechanics, which is derived by Hamiltonian methods. The entropy is not simply one quarter of the surface area of the horizon, but also includes a sum of intrinsic curvature invariants integrated over a cross section of the horizon.

  8. Black Holes of Negative Mass

    E-Print Network [OSTI]

    R. B. Mann

    1997-05-06T23:59:59.000Z

    I demonstrate that, under certain circumstances, regions of negative energy density can undergo gravitational collapse into a black hole. The resultant exterior black hole spacetimes necessarily have negative mass and non-trivial topology. A full theory of quantum gravity, in which topology-changing processes take place, could give rise to such spacetimes.

  9. Kraft black liquor combustion: Advancement in fundamental understanding

    SciTech Connect (OSTI)

    Clay, D.T.

    1987-10-01T23:59:59.000Z

    Self-generated fuel streams plus purchased fossil fuel and power supply the pulp and paper industry with its energy requirements. The total industry energy use for 1986 was approximately 2.3 Quad (2300 trillion Btus). Self-generated and residue fuels accounted for 57% of the energy requirements. Spent pulping liquors provide the single largest self-generated energy source, approximately one Quad (900 trillion Btus). The pulp and paper industry also leads the nation in cogeneration performance. In 1986 eighty-nine percent (89%) of the 46 billion KWHs generated were produced by cogeneration. Spent pulping liquors supply the single largest fuel source (35%) to these cogeneration facilities. Spent pulping liquors consist of solubilized wood organics, spent inorganic chemicals, and water. Since kraft pulp dominates the North American market, 74%, kraft black liquor is the dominant spent pulping liquor. Effective recovery of high level energy and chemicals from black liquor contributes heavily toward dominance of kraft pulping. The kraft chemical recovery cycle centers around the recovery boiler. Kraft recovery boilers have been commercially available for over 50 years. The potential still exists, however, for significant improvements in energy recovery and black liquor throughput. Potential energy benefits from black liquor combustion research amount to 30 trillion Btus. Energy recovery increases often are an additional benefit from modifications made to increase black liquor throughput. Capacity increases of at least 5% are often achievable. Increased energy productivity of the kraft chemical recovery boiler will come by incorporation of improved fundamental knowledge into the technology used for boiler upgrades and new boiler construction. 5 refs., 9 figs.

  10. NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance...

    Broader source: Energy.gov (indexed) [DOE]

    NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report The following information...

  11. Black optic display

    DOE Patents [OSTI]

    Veligdan, James T. (Manorville, NY)

    1997-01-01T23:59:59.000Z

    An optical display includes a plurality of stacked optical waveguides having first and second opposite ends collectively defining an image input face and an image screen, respectively, with the screen being oblique to the input face. Each of the waveguides includes a transparent core bound by a cladding layer having a lower index of refraction for effecting internal reflection of image light transmitted into the input face to project an image on the screen, with each of the cladding layers including a cladding cap integrally joined thereto at the waveguide second ends. Each of the cores is beveled at the waveguide second end so that the cladding cap is viewable through the transparent core. Each of the cladding caps is black for absorbing external ambient light incident upon the screen for improving contrast of the image projected internally on the screen.

  12. Andrew Case "American Environmental History"

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    Andrew Case History "American Environmental History" Spring 2008 Advisor: William Cronon Classics, Richard. "It's Your Misfortune and None of My Own": A New History of the American West. (Norman

  13. UNIVERSITY OF PENNSYLVANIA VICE PROVOST FOR UNIVERSITY LIFE

    E-Print Network [OSTI]

    Sharp, Kim

    UNIVERSITY OF PENNSYLVANIA VICE PROVOST FOR UNIVERSITY LIFE EQUITY & ACCESS PROGRAMS STUDENT) Ethnic/Racial Classification: (Please Circle): American Indian/Alaskan Native, Asian, Black or African): ___________ ______________________________________________________________________________ EDUCATIONAL BACKGROUND What is your favorite school subject? ______________________________ What is your

  14. Alien Religious Influence on African Religion and Social Change

    E-Print Network [OSTI]

    Anyanwu, Kane C.

    1976-01-01T23:59:59.000Z

    ALIEN I£LIGIOlE ItfUW 00 AFRICAN IRIGIOO AND SOCIAL OWH: byare passively absorbing alien influences and that westerntherefore, a knowledge of alien religious beliefs and world-

  15. african viviparid clinid: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    African horse sickness (AHS) is a serious, often fatal, arthropod-borne viral disease of horses and mules. The mortality rate can be as high as 95 % in some forms of this disease....

  16. Thermal and mechanical development of the East African Rift System

    E-Print Network [OSTI]

    Ebinger, Cynthia Joan

    1988-01-01T23:59:59.000Z

    The deep basins, uplifted flanks, and volcanoes of the Western and Kenya rift systems have developed along the western and eastern margins of the 1300 km-wide East African plateau. Structural patterns deduced from field, ...

  17. african region summary: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ... Im, Eun-Soon 12 Regional Summary Gulf of Mexico Region Management...

  18. african monsoon onset: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ... Im, Eun-Soon 13 Local versus regional-scale characteristics of monsoon...

  19. Water availability, piospheres and evolution in African ruminants 

    E-Print Network [OSTI]

    Derry, Julian F; Dougill, Andy

    2006-07-21T23:59:59.000Z

    Water dependency has consequences for the behaviour of African large herbivores from day-to-day and season-to-season. Independently, there have been comparisons made between the water-dependencies of these species and the consequent impact...

  20. african horse sickness: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    vectors may carry the virus into AHS-free regions. Some authors speculate that global warming could increase the risk for spread of arthropod-borne diseases such as African horse...

  1. african horse sickness virus: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    vectors may carry the virus into AHS-free regions. Some authors speculate that global warming could increase the risk for spread of arthropod-borne diseases such as African horse...

  2. Latin American and Caribbean Studies

    E-Print Network [OSTI]

    Saldin, Dilano

    Latin American and Caribbean Studies Certificate About Us UWM graduates in the 21st century American and Caribbean Studies Certificate Program (LACS) will be especially well-prepared for careers academic focus in Latin American and Caribbean languages, histories, and cultures. However, the LACS

  3. Successful African American students in two-way immersion programs: parent and student perceptions

    E-Print Network [OSTI]

    Boone, Sonia Kay

    2009-05-15T23:59:59.000Z

    have given me throughout this program. I will be forever grateful for your unselfish guidance and support of my dream. To my cohort group, Rosalinda Mercado Garza, Patricia May Henry, and Otoniel Marrero, thank you for being a part of this group..., Brown v. the Board of Education stated that ?segregation of Negro and white children in the public schools of a state solely on the basis of race denies Negro children equal protection of the laws guaranteed by the Fourteenth Amendment even thought...

  4. Infected Lives: A Heideggerian Phenomenological Study of Young African American Human Immunodeficiency Virus-Positive Women

    E-Print Network [OSTI]

    Peltzer, Jill Nicole

    2012-05-31T23:59:59.000Z

    and discriminated against in their interpersonal and social systems. They often faced myriad, unresolved conflicts. They were coping with unrelenting depression and other physical symptoms. Implications for education, practice, policy and research are discussed....

  5. An Autoethnographic Study: An African American Woman’s Perception of her Journey to the Principalship

    E-Print Network [OSTI]

    Rose, Shirley A

    2013-05-02T23:59:59.000Z

    .? Isaiah 54:17 Giving all glory and honor to God. Thank you. He believed in me. He tugged at me. He woke me up in the middle of the night to encourage me. He carried me. Thank you Lord, for without you nothing is possible. To my mother: Thank you Mom... than I missed, but I do hope and pray you understand. I love you and I appreciate you. At a young age both of you dealt with a professional educator who happened to by your mom. You have both grown to be wonderful young adults and I am very proud...

  6. african-american crack abusers: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    criminal justice system rather than to treatment for legal problems caused by substance abuse (Lowe and Alston 1973), higher rates of drug-related homicide deaths (Harper and...

  7. Case Study of Rural High School Math Teachers of African American Students

    E-Print Network [OSTI]

    Jones, Marcus Gee

    2014-05-03T23:59:59.000Z

    of the requirements for the degree of DOCTOR OF EDUCATION Chair of Committee, Gwendolyn Webb-Hasan Committee Members, Glenda Musoba Jeffrey Liew Beverly Irby Head of Department, Fred Nafukho May 2014 Major Subject: Educational Administration... ACKNOWLEDGEMENTS I would like to thank my committee chair, Dr. Gwendolyn Webb-Hasan, and my committee members, Dr. Glenda Musoba, Dr. Beverly Irby and Dr. Jeffrey Liew, for their flexibility and guidance throughout this process. I am very thankful...

  8. Four African American Male Principals and Their Leadership in Urban Elementary Schools

    E-Print Network [OSTI]

    Moultry, Edrick George

    2014-04-29T23:59:59.000Z

    of the requirements for the degree of DOCTOR OF PHILOSOPHY Chair of Committee, Norvella P. Carter Committee Members, Gwendolyn Webb-Hasan Patricia Larke Larry J. Kelly Head of Department, Yeping Li May 2014 Major Subject: Curriculum and Instruction... moving forward, listened to me, and supported me when life became challenging for me. Dr. Webb-Hasan provided me with unique perspectives regarding education, encouraging words, feedback, and support. Dr. Larke and Dr. Kelly provided me with words...

  9. Five African American Male Superintendents and Their Leadership in Diverse School Districts in Texas

    E-Print Network [OSTI]

    Smothers, Aneil 1968-

    2012-11-29T23:59:59.000Z

    fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Norvella P. Carter Committee Members, Gwenn Webb-Hasan Patricia Larke Larry J. Kelly Tyrone Tanner Head of Department, Yeping Li... leadership. Dr. Webb-Hasan gave me encouraging words, advice, and support. Dr. Larke helped me acquire a better understanding of diversity. Dr. Kelly shared not only words of wisdom but also lent his support. All of you have contributed to help me make...

  10. High School Dropout: Perceptions and Voices of African American and Hispanic Students

    E-Print Network [OSTI]

    Baker, Wanda

    2011-08-08T23:59:59.000Z

    by WANDA L. BAKER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF EDUCATION Approved by: Chair of Committee, Gwendolyn Webb-Hasan... and Hispanic Students. (May 2011) Wanda L. Baker, B.A., Interamerican University of Puerto Rico; M.S., Sam Houston State University Chair of Advisory Committee: Dr. Gwendolyn Webb-Hasan The purpose of this study was to investigate the perceptions...

  11. Religion and womanism in the lives of Central Texas African American Baptist women

    E-Print Network [OSTI]

    Turner, Deidra Rochelle

    2009-05-15T23:59:59.000Z

    that continuously encouraged me. To my husband, Darron, thank you for being a rock and a sounding board. To my parents, James and Queen, thank you for instilling in me a strong belief system and for being role models of faith. To Karen Atchison, thank you... foods (Leviticus 11) or cook on Sunday (Exodus 35). Because the husband is the head of the household, the pastor did not allow his wife to work, and my mother soon followed suit (Colossians 3). I was often brought before the congregation to verbally...

  12. Comparable Ages for the Independent Origins of Electrogenesis in African and South American Weakly

    E-Print Network [OSTI]

    Hopkins, Carl D.

    Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba, Japan, 3 Department of Zoology on the process of species radiation. Citation: Lavoue´ S, Miya M, Arnegard ME, Sullivan JP, Hopkins CD, et al

  13. african-american women participating: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

  14. E-Print Network 3.0 - african american grandparents Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    a grandparent. Over ... Source: Lovern, Matthew Benjamin - Department of Zoology, Oklahoma State University Collection: Biology and Medicine 2 Most of us eventually become...

  15. Colorectal Cancer Screening and Young African-American Men: Male Role Norms, Knowledge, Attitudes, and Perceptions

    E-Print Network [OSTI]

    Rogers, Charles Ray

    2013-12-05T23:59:59.000Z

    of these leaders fought numerous battles in the background to get me to this point. For this, I am forever grateful and hope that my success will not only serve as a small token of my appreciation for each of you, but will also attract other bright students... in the United States, CRC screening (CRCS) uptake is relatively low, especially among groups that lack health insurance or a usual source of care (Breen et al., 2001). In addition to the lack of access to screening and limited or no health insurance, other...

  16. Does Collective Identity Matter? : African-American Conventional and Unconventional Political Participation

    E-Print Network [OSTI]

    Robnett, Belinda

    2007-01-01T23:59:59.000Z

    Temple University Press, Jasper, James. 1997. The Art ofPolletta, Francesca, and Jasper James M. 2001. “Collective366-367). Polletta and Jasper (2001:3) define collective

  17. Moving Forward: A Weight Lossg g Intervention of African-American

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    . Poor diet, lack of regular physical activity and obesity contribute to breast cancer progressionobesity-binding protein (IGFBP-3) ­ Contributes to chronic inflammation #12;Diet, Physical Activity and B t CBreast Cancer of insulin-like growth factors (IGF-1) and insulin-like growth factor binding protein (IGFBP 3)factor

  18. Visibly Invisible: Uncovering Identity for African American Women at an Academically Selective University

    E-Print Network [OSTI]

    Crear, Shelah Flowers

    2013-07-31T23:59:59.000Z

    None of this would have been worth it without your love, support, patience and steadfast belief in me. We did it. To Rebellion Seeker, Brenda, and Reagan You gave me a wonderful gift?your voice. Thank you for being so open and honest... Reagan.................................................................................... 107 Their Shared Experiences............................................................................... 120 Summary of Findings...

  19. African American citizen soldiers in Galveston and San Antonio, Texas, 1880-1906

    E-Print Network [OSTI]

    Blair, John Patrick

    2009-05-15T23:59:59.000Z

    and San Antonio; yet, their service has rarely obtained scholarly attention. Often discounted by historians as mere social clubs or deemed too few and insignificant to warrant study, these men sought not only to demonstrate their citizenship...

  20. Use of the Rorschach as a personality assessment tool with African American students

    E-Print Network [OSTI]

    Velox, Andrea Jean

    2005-08-29T23:59:59.000Z

    by the investigator. F+, and m were found in higher amounts for the study sample; CF, Pairs, Zf, and T were all found in significantly lower amounts for the study group. Significance on six (CF, Pairs, R-total, Zf, AG, and T) of the Rorschach variables investigated...

  1. african-american adolescent girls: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    underperformed relative to boys in science, technology, engineering, and mathematics. Brown, Christia Spears; Leaper, Campbell 2010-01-01 157 JGIM BRIEF REPORTS Community and...

  2. African American Women in Appalachia: Personal Expressions of Race, Place and Gender

    E-Print Network [OSTI]

    Barbour-Payne, Yunina Carol

    2014-06-04T23:59:59.000Z

    Kentucky, Tennessee and West Virginia. They also represent the first and second generation members of the Affrilachian Poets. Both the women 8 themselves (bodies and experiences) and their works offer points of departure for conversations regarding... of “Quantum physics, Appalachian culture, gender equality and mountaintop removal” (CrystalGood.net). Born and raised in the region of Appalachia, she is a native of West Virginia and an activist of issues facing Appalachians of all kinds. She credits...

  3. Climate Change, Justice and Adaptation1 among African American Communities in the2

    E-Print Network [OSTI]

    Douglas, Ellen M.

    are representative of small, resource poor communities that29 are particularly prone to increased flooding, storms to increased53 flooding due to both sea level rise and projected increases in precipitation and river flows as as a result of sea level rise due to climate change,58 continued land subsidence, and probable increases

  4. E-Print Network 3.0 - african american population Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    through a curriculum that encom- passes a variety of subjects... . To understand its central role in ... Source: Sibille, Etienne - Center for the Neural Basis of Cognition &...

  5. Exploring Risk and Protective Factors Among African American Males in Alternative and General Education Settings

    E-Print Network [OSTI]

    Crossley, Tia Billy

    2012-02-14T23:59:59.000Z

    education and discipline needs. As such, they pose a challenge for many educators (Foley & Pang, 2006; Tsang, 2004). For the purpose of this paper, an alternative school setting refers to any public nontraditional school setting that services students who...

  6. THE REGISTRAR WITTENBERG UNIVERSITY

    E-Print Network [OSTI]

    Bogaerts, Steven

    Blacks in Contemporary American Cinema 3 CINE XXX 3 NONE AAS 3530 Survey of Black Independent Cinema 3.S. Constitutional Law: Pre-Civil Rights Movements 3 POLI XXX 3 NONE Review needed - Consult the Political Science - Consult the Political Science Department AAS 3800 African American Education 3 EDUC XXX 3 NONE Review

  7. Thermodynamics of regular black hole

    E-Print Network [OSTI]

    Yun Soo Myung; Yong-Wan Kim; Young-Jai Park

    2008-09-21T23:59:59.000Z

    We investigate thermodynamics for a magnetically charged regular black hole (MCRBH), which comes from the action of general relativity and nonlinear electromagnetics, comparing with the Reissner-Norstr\\"om (RN) black hole in both four and two dimensions after dimensional reduction. We find that there is no thermodynamic difference between the regular and RN black holes for a fixed charge $Q$ in both dimensions. This means that the condition for either singularity or regularity at the origin of coordinate does not affect the thermodynamics of black hole. Furthermore, we describe the near-horizon AdS$_2$ thermodynamics of the MCRBH with the connection of the Jackiw-Teitelboim theory. We also identify the near-horizon entropy as the statistical entropy by using the AdS$_2$/CFT$_1$ correspondence.

  8. Black Hole Interior Mass Formula

    E-Print Network [OSTI]

    Parthapratim Pradhan

    2014-05-06T23:59:59.000Z

    We argue by explicit computations that, although the area product, horizon radii product, entropy product and \\emph {irreducible mass product} of the event horizon and Cauchy horizon are universal, the \\emph{surface gravity product}, \\emph{surface temperature product} and \\emph{Komar energy product} of the said horizons do not seem to be universal for Kerr-Newman (KN) black hole space-time. We show the black hole mass formula on the \\emph{Cauchy horizon} following the seminal work by Smarr\\cite{smarr} for the outer horizon. We also prescribed the \\emph{four} laws of black hole mechanics for the \\emph{inner horizon}. New definition of the extremal limit of a black hole is discussed.

  9. American Disabilities Act

    Broader source: Energy.gov [DOE]

    The Americans with Disabilities Act prohibits private employers, state and local governments, employment agencies and labor unions from discriminating against qualified individuals with disabilities in job application procedures, hiring, firing, advancement, compensation, job training, and other terms, conditions, and privileges of employment.

  10. Lattice Black Holes

    E-Print Network [OSTI]

    Steven Corley; Ted Jacobson

    1998-03-26T23:59:59.000Z

    We study the Hawking process on lattices falling into static black holes. The motivation is to understand how the outgoing modes and Hawking radiation can arise in a setting with a strict short distance cutoff in the free-fall frame. We employ two-dimensional free scalar field theory. For a falling lattice with a discrete time-translation symmetry we use analytical methods to establish that, for Killing frequency $\\omega$ and surface gravity $\\kappa$ satisfying $\\kappa\\ll\\omega^{1/3}\\ll 1$ in lattice units, the continuum Hawking spectrum is recovered. The low frequency outgoing modes arise from exotic ingoing modes with large proper wavevectors that "refract" off the horizon. In this model with time translation symmetry the proper lattice spacing goes to zero at spatial infinity. We also consider instead falling lattices whose proper lattice spacing is constant at infinity and therefore grows with time at any finite radius. This violation of time translation symmetry is visible only at wavelengths comparable to the lattice spacing, and it is responsible for transmuting ingoing high Killing frequency modes into low frequency outgoing modes.

  11. Fishing in Black Holes

    E-Print Network [OSTI]

    A. Brotas

    2006-09-01T23:59:59.000Z

    The coordinate system $(\\bar{x},\\bar{t})$ defined by $r = 2m + K\\bar{x}- c K \\bar{t}$ and $t=\\bar{x}/cK - 1 /cK \\int_{r_a}^r (1- 2m/r + K^2)^{1/2} (1 - 2m/r)^{-1}dr$ allow us to write the Schwarzschild metric in the form: \\[ds^2=c^2 d\\bar{t}^2 + (W^2/K^2 - 2W/K) d\\bar{x}^2 + 2c (1 + W/K) d\\bar{x}d\\bar{t} - r^2 (d\\theta^2 + cos^2\\theta d\\phi^2)\\] with $W=(1 - 2m/r + K^2)^{1/2}$, in which the coefficients' pathologies are moved to $r_K = 2m/(1+K^2)$. This new coordinate system is used to study the entrance into a black hole of a rigid line (a line in which the shock waves propagate with velocity c).

  12. Red-Black Trees 1 2004 Goodrich, Tamassia Red-Black Trees

    E-Print Network [OSTI]

    Alechina, Natasha

    Red-Black Trees 1© 2004 Goodrich, Tamassia Red-Black Trees 6 3 8 4 v z #12;Red-Black Trees 2© 2004 Goodrich, Tamassia From (2,4) to Red-Black Trees A red-black tree is a representation of a (2,4) tree by means of a binary tree whose nodes are colored red or black In comparison with its associated (2,4) tree

  13. Kraft black liquor delivery systems

    SciTech Connect (OSTI)

    Adams, T.N.; Empie, H.L.; Obuskovic, N.; Spielbauer, T.M.

    1990-02-01T23:59:59.000Z

    Improvement of spray nozzles for black liquor injection into kraft recovery furnaces is expected to result from obtaining a controlled, well-defined droplet size distribution. Work this year has centered on defining the capabilities of commercial black liquor nozzles currently in use. Considerations of the observed mechanism of droplet formation suggest a major revision is needed in the theory of how droplets form from these nozzles. High resolution, high sensitivity video has been shown to be superior to flash x-ray as a technique for measuring the droplet size distribution as well as the formation history. An environmentally sound spray facility capable of spraying black liquor at temperatures up to normal firing conditions is being constructed before data acquisition continues. Preliminary correlations have been developed between liquor properties, nozzle design, and droplet size. Three aspects of nozzle design have been investigated: droplet size distribution, fluid sheet thickness, and flow and pressure drop characteristics. The standard deviation about the median droplet size for black liquor is nearly the same as the for a wide variety of other fluids and nozzle types. Preliminary correlation for fluid sheet thickness on the plate of a splashplate nozzle show the strong similarities of black liquor to other fluids. The flow and pressure drop characteristic of black liquor nozzle, follow a simple two-term relationship similar to other flow devices. This means that in routine mill operation of black liquor nozzles only the fluid acceleration in the nozzle is important, viscous losses are quiet small. 21 refs., 53 figs., 10 tabs.

  14. E-Print Network 3.0 - african endemic caffrogobius Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    . ) Ktze. African dropseed Indian dropseed West Indian drapseed buffalo grass Endemic Alien Endemic Alien... Alien her33 1 pus-maka-nui Endemic (R) herb 3 African tulip tree...

  15. E-Print Network 3.0 - african giant rat Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Medicine 38 Journal of East African Natural History 99(1): 18 (2010) SENGI (ELEPHANT-SHREW) OBSERVATIONS FROM Summary: Journal of East African Natural History 99(1): 1-8...

  16. E-Print Network 3.0 - africa central african Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Page: << < 1 2 3 4 5 > >> 1 The Schools of Humanities and Social Sciences Director anD aDvisor Summary: to African Religions; HIST 231 Introduction to African History: North,...

  17. South African National Biodiversity Institute and University of Cape Town (South Africa) Postdoctoral Fellow (1position)

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    South African National Biodiversity Institute and University of Cape Town (South Africa from designated groups in terms of South Africa's employment equity targets will have preference) Postdoctoral Fellow (1position) (Two year Contract) The South African National Biodiversity Institute

  18. E-Print Network 3.0 - adherence south african Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    African groups (Figure 1). The two pygmy populations (Biaka, Mbuti) and the San of South Africa... and south 5,25. Figure 3 displays the PCA results of the African...

  19. E-Print Network 3.0 - african water resource Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    water resource Search Powered by Explorit Topic List Advanced Search Sample search results for: african water resource Page: << < 1 2 3 4 5 > >> 1 THE AFRICAN ECOSYSTEMS PROGRAM AT...

  20. E-Print Network 3.0 - african savanna ecosystem Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    its environment. Savanna Rain Forest The Field Museum Educator Guide African Biodiversity... Grades 3-5 Page 3 African Biodiversity Grades 3-5 Savanna Human Name a society...

  1. Energy on black hole spacetimes

    E-Print Network [OSTI]

    Alejandro Corichi

    2012-07-18T23:59:59.000Z

    We consider the issue of defining energy for test particles on a background black hole spacetime. We revisit the different notions of energy as defined by different observers. The existence of a time-like isometry allows for the notion of a total conserved energy to be well defined, and subsequently the notion of a gravitational potential energy is also meaningful. We then consider the situation in which the test particle is adsorbed by the black hole, and analyze the energetics in detail. In particular, we show that the notion of horizon energy es defined by the isolated horizons formalism provides a satisfactory notion of energy compatible with the particle's conserved energy. As another example, we comment a recent proposal to define energy of the black hole as seen by an observer at rest. This account is intended to be pedagogical and is aimed at the level of and as a complement to the standard textbooks on the subject.

  2. E-Print Network 3.0 - african lungfish protopterus Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2007 Abstract African lungfish, Protopterus dolloi exhibited constant... -breathing fish 1. Introduction ... Source: Gilmour, Katie - Department of Biology, University of...

  3. Call for Papers and Panels Unleashing the Black Erotic

    E-Print Network [OSTI]

    Kunkle, Tom

    and the Hypersexuality of Black Women Alternative Modes of Black Love and Family The Politics and Economics of Porn

  4. Black Hills Energy- Solar Power Program

    Broader source: Energy.gov [DOE]

    Black Hills Energy has a performance-based incentive (PBI) for photovoltaic (PV) systems up to 100 kilowatts (kW) in capacity. In exchange for these incentives, Black Hills Energy earns the right...

  5. Black Literary Suite: Kansas Authors Edition

    E-Print Network [OSTI]

    Wiggins, Meredith Joan

    2015-03-04T23:59:59.000Z

    authors were born or lived in the Sunflower State, and their work often reflects their time in Kansas. This Black Literary Suite exhibit highlights four important black writers—Langston Hughes, Gwendolyn Brooks, Frank Marshall Davis, and Kevin Young...

  6. Black brane entropy and hydrodynamics

    SciTech Connect (OSTI)

    Booth, Ivan; Heller, Michal P.; Spalinski, Michal [Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, A1C 5S7 (Canada); Instituut voor Theoretische Fysica, Universiteit van Amsterdam, Science Park 904, 1090 GL Amsterdam (Netherlands); Soltan Institute for Nuclear Studies, Hoza 69, 00-681 Warsaw (Poland) and Physics Department, University of Bialystok, 15-424 Bialystok (Poland)

    2011-03-15T23:59:59.000Z

    Recent advances in holography have led to the formulation of fluid-gravity duality, a remarkable connection between the hydrodynamics of certain strongly coupled media and dynamics of higher dimensional black holes. This paper introduces a correspondence between phenomenologically defined entropy currents in relativistic hydrodynamics and 'generalized horizons' of near-equilibrium black objects in a dual gravitational description. A general formula is given, expressing the divergence of the entropy current in terms of geometric objects which appear naturally in the gravity dual geometry. The proposed definition is explicitly covariant with respect to boundary diffeomorphisms and reproduces known results when evaluated for the event horizon.

  7. New American Home 2009 (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2008-12-01T23:59:59.000Z

    This brochure details the New American Home 2009, which demonstrates the use of innovative building materials, cutting-edge design, and the latest construction techniques.

  8. Assigning African elephant DNA to geographic region of origin: Applications to the ivory trade

    E-Print Network [OSTI]

    Stephens, Matthew

    Assigning African elephant DNA to geographic region of origin: Applications to the ivory trade for review May 7, 2004) Resurgence of illicit trade in African elephant ivory is placing the elephant geographic- specific allele frequencies over the entire African elephants' range for 16 microsatellite loci

  9. PRELIMINARY INVESTIGATION ON THE DISTRIBUTION OF AFRICANIZED HONEY BEES IN ARGENTINA

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PRELIMINARY INVESTIGATION ON THE DISTRIBUTION OF AFRICANIZED HONEY BEES IN ARGENTINA A. DIETZ, R The preliminary results of a survey for Africanized honey bees conducted in 17 provinces of Argentina from January. The subsequent spread of Africanized bees into Argentina has not been clearly established. KEMPFF MERCADO (1973

  10. On African easterly waves that impacted two tropical cyclones in 2004 Melinda S. Peng,1

    E-Print Network [OSTI]

    Li, Tim

    On African easterly waves that impacted two tropical cyclones in 2004 Melinda S. Peng,1 Bing Fu,2 cyclones. Danielle and Earl (2004) formed approximately at the same time in the Atlantic. A three to eight of the African easterly waves related to the two cyclones. The time-filtered 850 mb vorticity shows that African

  11. Hawking Emission and Black Hole Thermodynamics

    E-Print Network [OSTI]

    Don N. Page

    2006-12-18T23:59:59.000Z

    A brief review of Hawking radiation and black hole thermodynamics is given, based largely upon hep-th/0409024.

  12. On the nature of black hole entropy

    E-Print Network [OSTI]

    Ted Jacobson

    2000-01-13T23:59:59.000Z

    I argue that black hole entropy counts only those states of a black hole that can influence the outside, and attempt (with only partial success) to defend this claim against various objections, all but one coming from string theory. Implications for the nature of the Bekenstein bound are discussed, and in particular the case for a holographic principle is challenged. Finally, a generalization of black hole thermodynamics to "partial event horizons" in general spacetimes without black holes is proposed.

  13. 6, 34193463, 2006 Black carbon or

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 6, 3419­3463, 2006 Black carbon or brown carbon M. O. Andreae and A. Gelencs´er Title Page Chemistry and Physics Discussions Black carbon or brown carbon? The nature of light-absorbing carbonaceous;ACPD 6, 3419­3463, 2006 Black carbon or brown carbon M. O. Andreae and A. Gelencs´er Title Page

  14. White holes and eternal black holes

    E-Print Network [OSTI]

    Stephen D. H. Hsu

    2011-11-16T23:59:59.000Z

    We investigate isolated white holes surrounded by vacuum, which correspond to the time reversal of eternal black holes that do not evaporate. We show that isolated white holes produce quasi- thermal Hawking radiation. The time reversal of this radiation, incident on a black hole precursor, constitutes a special preparation that will cause the black hole to become eternal.

  15. Conservation Assessment for Bloodroot in the Black

    E-Print Network [OSTI]

    Conservation Assessment for Bloodroot in the Black Hills National Forest, South Dakota and Wyoming Forest Service Rocky Mountain Region Black Hills National Forest Custer, South Dakota April 2003 #12;Species Assessment of Bloodroot in the Black Hills National Forest, South Dakota and Wyoming J. Hope

  16. Absorption cross section in Lifshitz black hole

    E-Print Network [OSTI]

    Taeyoon Moon; Yun Soo Myung

    2012-10-05T23:59:59.000Z

    We derive the absorption cross section of a minimally coupled scalar in the Lifshitz black hole obtained from the new massive gravity. The absorption cross section reduces to the horizon area in the low energy and massless limit of s-wave mode propagation, indicating that the Lifshitz black hole also satisfies the universality of low energy absorption cross section for black holes.

  17. Donald Byrne (white) vs. Robert James "Bobby" Fischer (black) 1956 White Black

    E-Print Network [OSTI]

    Zirbel, Craig L.

    Donald Byrne (white) vs. Robert James "Bobby" Fischer (black) 1956 White Black 1. Nf3 Nf6 comments here are called "annotation" 2. c4 g6 3. Nc3 Bg7 black bishop sits on long diagonal 4. d4 0-0 white black threatens the queen 7. Qxc4 c6 8. e4 Nbd7 black's knight on b moves to d7 9. Rd1 Nb6 white's rook

  18. The American Recovery

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy StrainClientDesignOfficeThe 21st Century TruckAPRILAuditAmerican

  19. AMERICAN STATISTICAL ASSOCIATION

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:SeadovCooperativeA2. World9, 2014 International PetroleumFuel Oil UsageAEP AMERICAN

  20. AMERICAN STATISTICAL ASSOCIATION

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:SeadovCooperativeA2. World9, 2014 International PetroleumFuel Oil UsageAEP AMERICAN OPEN

  1. AMERICAN STATISTICAL ASSOCIATION

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:SeadovCooperativeA2. World9, 2014 International PetroleumFuel Oil UsageAEP AMERICAN OPEN

  2. AMERICAN STATISTICAL ASSOCIATION (ASA)

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:SeadovCooperativeA2.Reformulated, Average RefinerEnergy Supply Crude2.3AMERICAN

  3. American Physical Society Fellows

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone by E-mail Share AlternativeRightAlvaroX-ray,American Physical

  4. Comments of North American Electric Reliability Corporation ...

    Broader source: Energy.gov (indexed) [DOE]

    North American Electric Reliability Corporation (NERC) to DOE Smart Grid RFI: Addressing Policy and Logistical Challenges Comments of North American Electric Reliability...

  5. Lienert named American Welding Society Fellow

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    American Welding Society Fellow November 29, 2012 Thomas J. Lienert of the Lab's Metallurgy group was inducted into the American Welding Society's 2012 Class of Fellows during...

  6. Energy Innovation: Green Button Initiative Empowering Americans...

    Office of Environmental Management (EM)

    Innovation: Green Button Initiative Empowering Americans to Save Energy and Money Energy Innovation: Green Button Initiative Empowering Americans to Save Energy and Money February...

  7. Brown oculocutaneous albinism is allelic to tyrosinase-positive oculocutaneous albinism in southern African Negroids

    SciTech Connect (OSTI)

    Manga, P.; Ramsay, M.; Kromberg, J.; Jenkins, T. [Univ. of the Witwatersrand, Johannesburg (South Africa)

    1994-09-01T23:59:59.000Z

    Brown oculocutaneous albinism (BOCA) is an autosomal recessive disorder involving a decrease in pigment of the skin, hair and eyes as well as decreased visual acuity. Evidence from two families who have co-existent BOCA and tyrosinase-positive oculocutaneous albinism (ty-pos OCA), suggests that the two conditions are allelic. Ty-pos OCA has been mapped to chromosome 15q11-q12 and the gene has been confirmed to be the human homologue (P) of the mouse pink-eyed dilute gene (p). Seven markers known to be linked to the P gene, D15S11, D15S10, MS14, GABA3, GABA5, IR10 and pCMW-1, were used to construct haplotypes in 5 families with BOCA. The haplotype data was subjected to linkage analysis and a maximum lod score of 2.85 ({theta} 0.0) was obtained. It has been reported previously that BOCA, in an Afro-American, was due to the lack of tyrosinase-protein 1 (Trp-1) in melanocytes. Trp-1 has been excluded as the disease-causing locus in the southern African families by linkage analysis with D9S43. A lod score of -2.02 was obtained at {theta} = 0.02.

  8. Contributed Paper Combating the Illegal Trade in African Elephant Ivory

    E-Print Network [OSTI]

    Wasser, Samuel

    product origin because the information they can provide typically begins only at the point of shipment detected by forensic information, which typically begins only at the shipping source. Keywords: African elephant, DNA, assignment tests, ivory trade, poaching, wildlife trafficking Combate del Comercio Ilegal de

  9. Brain of the African Elephant (Loxodonta africana): Neuroanatomy

    E-Print Network [OSTI]

    Allman, John M.

    Brain of the African Elephant (Loxodonta africana): Neuroanatomy From Magnetic Resonance Images images of the brain of an adult Afri- can elephant, Loxodonta africana, in the axial and parasagittal ) and of the neocortical and cerebellar gray and white matter. The white matter-to-gray matter ratio in the elephant neo

  10. South African SKA Project Human Capital Development Programme

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    D and MSc Project List 1. Radio Astronomy Science 1.1 Radio Astronomy Science - PhD topics Project Title Project Description Qualifications and Skills Required Link to MeerKAT and/ or SKA Science Supervisor (andSouth African SKA Project Human Capital Development Programme Call for applications for 2014 Ph

  11. Modelling the South African fresh fruit export supply chain

    E-Print Network [OSTI]

    van Vuuren, Jan H.

    Modelling the South African fresh fruit export supply chain Frank Gerald Ortmann Thesis presented university for a degree. Signature: Date: #12;#12;Abstract The process of modelling the fruit export infrastructure capacity of South Africa formed part of a larger project called the "Fruit Logistics

  12. Dominance rank relationships among wild female African elephants, Loxodonta africana

    E-Print Network [OSTI]

    Alberts, Susan C

    Dominance rank relationships among wild female African elephants, Loxodonta africana ELIZABETH A-differentiated social relationships; however, little is known about the nature of their dominance rank relationships results best support the third outcome: dominance rank relationships were transi- tive within families

  13. Responses of African economies to the international economic shocks: an

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    rate shocks and five to World price of oil shocks. Furthermore, we investigate the viability of the African economies after an international income, monetary or price shocks tend to be in general more economies (Madeley, 2003). Contrary to the assumption of decoupling for the economic cycles, these countries

  14. Understanding African Poverty: Beyond the Washington Consensus to the

    E-Print Network [OSTI]

    23 2 Understanding African Poverty: Beyond the Washington Consensus to the Millennium Development Poverty he era of structural adjustment, which can be dated approximately to the last two decades-based development lending of structural adjustment, it remains mired in poverty and debt. What went wrong

  15. Black Hole Evaporation as a Nonequilibrium Process

    E-Print Network [OSTI]

    Hiromi Saida

    2008-11-11T23:59:59.000Z

    When a black hole evaporates, there arises a net energy flow from the black hole into its outside environment due to the Hawking radiation and the energy accretion onto black hole. Exactly speaking, due to the net energy flow, the black hole evaporation is a nonequilibrium process. To study details of evaporation process, nonequilibrium effects of the net energy flow should be taken into account. In this article we simplify the situation so that the Hawking radiation consists of non-self-interacting massless matter fields and also the energy accretion onto the black hole consists of the same fields. Then we find that the nonequilibrium nature of black hole evaporation is described by a nonequilibrium state of that field, and we formulate nonequilibrium thermodynamics of non-self-interacting massless fields. By applying it to black hole evaporation, followings are shown: (1) Nonequilibrium effects of the energy flow tends to accelerate the black hole evaporation, and, consequently, a specific nonequilibrium phenomenon of semi-classical black hole evaporation is suggested. Furthermore a suggestion about the end state of quantum size black hole evaporation is proposed in the context of information loss paradox. (2) Negative heat capacity of black hole is the physical essence of the generalized second law of black hole thermodynamics, and self-entropy production inside the matter around black hole is not necessary to ensure the generalized second law. Furthermore a lower bound for total entropy at the end of black hole evaporation is given. A relation of the lower bound with the so-called covariant entropy bound conjecture is interesting but left as an open issue.

  16. "American manufacturers are a cornerstone of the American economy and embody the best in American values. They enhance U.S. competitiveness

    E-Print Network [OSTI]

    "American manufacturers are a cornerstone of the American economy and embody the best in American...................................................................... 27 Phase Four: Testing and Refinement ........................................................ 27

  17. BSW process of the slowly evaporating charged black hole

    E-Print Network [OSTI]

    Liancheng Wang; Feng He; Xiangyun Fu

    2015-02-09T23:59:59.000Z

    In this paper, we study the BSW process of the slowly evaporating charged black hole. It can be found that the BSW process will also arise near black hole horizon when the evaporation of charged black hole is very slow. But now the background black hole does not have to be an extremal black hole, and it will be approximately an extremal black hole unless it is nearly a huge stationary black hole.

  18. Origin of black string instability

    SciTech Connect (OSTI)

    Kudoh, Hideaki [Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan)

    2006-05-15T23:59:59.000Z

    It is argued that many nonextremal black branes exhibit a classical Gregory-Laflamme (GL) instability. Why does the universal instability exist? To find an answer to this question and explore other possible instabilities, we study stability of black strings for all possible types of gravitational perturbation. The perturbations are classified into tensor-, vector-, and scalar-types, according to their behavior on the spherical section of the background metric. The vector and scalar perturbations have exceptional multipole moments, and we have paid particular attention to them. It is shown that for each type of perturbations there is no normalizable negative (unstable) modes, apart from the exceptional mode known as s-wave perturbation which is exactly the GL mode. We discuss the origin of instability and comment on the implication for the correlated-stability conjecture.

  19. Accelerating and rotating black holes

    E-Print Network [OSTI]

    J. B. Griffiths; J. Podolsky

    2005-07-06T23:59:59.000Z

    An exact solution of Einstein's equations which represents a pair of accelerating and rotating black holes (a generalised form of the spinning C-metric) is presented. The starting point is a form of the Plebanski-Demianski metric which, in addition to the usual parameters, explicitly includes parameters which describe the acceleration and angular velocity of the sources. This is transformed to a form which explicitly contains the known special cases for either rotating or accelerating black holes. Electromagnetic charges and a NUT parameter are included, the relation between the NUT parameter $l$ and the Plebanski-Demianski parameter $n$ is given, and the physical meaning of all parameters is clarified. The possibility of finding an accelerating NUT solution is also discussed.

  20. First Floor Smithsonian American Art Museum

    E-Print Network [OSTI]

    Mathis, Wayne N.

    First Floor Smithsonian American Art Museum American Experience Folk Art Special ExhibitionsMillan Education Center Folk Art One Life Archives of American Art Gallery Recent AcquisitionsMuseum Store Museum Museum Graphic Arts American Art through 1940 America's Presidents The Struggle for Justice

  1. Charged spinning black holes as particle accelerators

    SciTech Connect (OSTI)

    Wei Shaowen; Liu Yuxiao; Guo Heng; Fu Chune [Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000 (China)

    2010-11-15T23:59:59.000Z

    It has recently been pointed out that the spinning Kerr black hole with maximal spin could act as a particle collider with arbitrarily high center-of-mass energy. In this paper, we will extend the result to the charged spinning black hole, the Kerr-Newman black hole. The center-of-mass energy of collision for two uncharged particles falling freely from rest at infinity depends not only on the spin a but also on the charge Q of the black hole. We find that an unlimited center-of-mass energy can be approached with the conditions: (1) the collision takes place at the horizon of an extremal black hole; (2) one of the colliding particles has critical angular momentum; (3) the spin a of the extremal black hole satisfies (1/{radical}(3)){<=}(a/M){<=}1, where M is the mass of the Kerr-Newman black hole. The third condition implies that to obtain an arbitrarily high energy, the extremal Kerr-Newman black hole must have a large value of spin, which is a significant difference between the Kerr and Kerr-Newman black holes. Furthermore, we also show that, for a near-extremal black hole, there always exists a finite upper bound for center-of-mass energy, which decreases with the increase of the charge Q.

  2. Dave Kaminsky Charles L. Black

    E-Print Network [OSTI]

    Edwin D. McKay Thomas L. McNeely Jean C. Persons Neysa P. Pickens Armant C. Touchy Jack S. Zoller 19511935 $50.00 Dave Kaminsky 1938 $200.00 Charles L. Black 1940 $50.00 Harold S. Miropol 1941 $67. Tennison Ben Thompson 1945 $250.00 Paul Finkelstein Harold J. Jacobs Lawrence Kahn 1946 $2,250.00 David W

  3. Black Hole Thermodynamics and Electromagnetism

    E-Print Network [OSTI]

    Burra G. Sidharth

    2005-07-15T23:59:59.000Z

    We show a strong parallel between the Hawking, Beckenstein black hole Thermodynamics and electromagnetism: When the gravitational coupling constant transform into the electromagnetic coupling constant, the Schwarzchild radius, the Beckenstein temperature, the Beckenstein decay time and the Planck mass transform to respectively the Compton wavelength, the Hagedorn temperature, the Compton time and a typical elementary particle mass. The reasons underlying this parallalism are then discussed in detail.

  4. ARM - Measurement - Black carbon concentration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC : XDCResearch Related InformationAcid RainTheimagegovMeasurementsBlack carbon

  5. Red-Black Trees 11/26/2007 11:09 AM Red-Black Trees 1 2004 Goodrich, Tamassia

    E-Print Network [OSTI]

    Alechina, Natasha

    Red-Black Trees 11/26/2007 11:09 AM 1 Red-Black Trees 1© 2004 Goodrich, Tamassia Red-Black Trees 6 3 8 4 v z Red-Black Trees 2© 2004 Goodrich, Tamassia From (2,4) to Red-Black Trees A red-black tree is a representation of a (2,4) tree by means of a binary tree whose nodes are colored red or black In comparison

  6. Red-Black Trees 11/11/2004 10:02 AM Red-Black Trees 1 2004 Goodrich, Tamassia

    E-Print Network [OSTI]

    Alechina, Natasha

    Red-Black Trees 11/11/2004 10:02 AM 1 Red-Black Trees 1© 2004 Goodrich, Tamassia Red-Black Trees 6 3 8 4 v z Red-Black Trees 2© 2004 Goodrich, Tamassia From (2,4) to Red-Black Trees A red-black tree is a representation of a (2,4) tree by means of a binary tree whose nodes are colored red or black In comparison

  7. Entanglement entropy of black holes

    E-Print Network [OSTI]

    Sergey N. Solodukhin

    2011-04-19T23:59:59.000Z

    The entanglement entropy is a fundamental quantity which characterizes the correlations between sub-systems in a larger quantum-mechanical system. For two sub-systems separated by a surface the entanglement entropy is proportional to the area of the surface and depends on the UV cutoff which regulates the short-distance correlations. The geometrical nature of the entanglement entropy calculation is particularly intriguing when applied to black holes when the entangling surface is the black hole horizon. I review a variety of aspects of this calculation: the useful mathematical tools such as the geometry of spaces with conical singularities and the heat kernel method, the UV divergences in the entropy and their renormalization, the logarithmic terms in the entanglement entropy in 4 and 6 dimensions and their relation to the conformal anomalies. The focus in the review is on the systematic use of the conical singularity method. The relations to other known approaches such as 't Hooft's brick wall model and the Euclidean path integral in the optical metric are discussed in detail. The puzzling behavior of the entanglement entropy due to fields which non-minimally couple to gravity is emphasized. The holographic description of the entanglement entropy of the black hole horizon is illustrated on the two- and four-dimensional examples. Finally, I examine the possibility to interpret the Bekenstein-Hawking entropy entirely as the entanglement entropy.

  8. Quantum Geometry and Black Holes

    E-Print Network [OSTI]

    G., J Fernando Barbero

    2015-01-01T23:59:59.000Z

    We present an overall picture of the advances in the description of black hole physics from the perspective of loop quantum gravity. After an introduction that discusses the main conceptual issues we present some details about the classical and quantum geometry of isolated horizons and their quantum geometry and then use this scheme to give a natural definition of the entropy of black holes. The entropy computations can be neatly expressed in the form of combinatorial problems solvable with the help of methods based on number theory and the use of generating functions. The recovery of the Bekenstein-Hawking law and corrections to it is explained in some detail. After this, due attention is paid to the discussion of semiclassical issues. An important point in this respect is the proper interpretation of the horizon area as the energy that should appear in the statistical-mechanical treatment of the black hole model presented here. The chapter ends with a comparison between the microscopic and semiclassical app...

  9. E-Print Network 3.0 - american ophthlamological society Sample...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: of Graphic Arts American Psychological Association American Research Center in Egypt American Society... of Mammalogists American Society of Media Photographers American...

  10. E-Print Network 3.0 - american ophthalmolgical society Sample...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: of Graphic Arts American Psychological Association American Research Center in Egypt American Society... of Mammalogists American Society of Media Photographers American...

  11. E-Print Network 3.0 - association american society Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: of Graphic Arts American Psychological Association American Research Center in Egypt American Society... of Mammalogists American Society of Media Photographers American...

  12. Combustion properties of Kraft Black Liquors

    SciTech Connect (OSTI)

    Frederick, W.J. Jr.; Hupa, M. (Aabo Akademi, Turku (Finland))

    1993-04-01T23:59:59.000Z

    In a previous study of the phenomena involved in the combustion of black liquor droplets a numerical model was developed. The model required certain black liquor specific combustion information which was then not currently available, and additional data were needed for evaluating the model. The overall objectives of the project reported here was to provide experimental data on key aspects of black liquor combustion, to interpret the data, and to put it into a form which would be useful for computational models for recovery boilers. The specific topics to be investigated were the volatiles and char carbon yields from pyrolysis of single black liquor droplets; a criterion for the onset of devolatilization and the accompanying rapid swelling; and the surface temperature of black liquor droplets during pyrolysis, combustion, and gasification. Additional information on the swelling characteristics of black liquor droplets was also obtained as part of the experiments conducted.

  13. Geothermal energy for American Samoa

    SciTech Connect (OSTI)

    Not Available

    1980-03-01T23:59:59.000Z

    The geothermal commercialization potential in American Samoa was investigated. With geothermal energy harnessed in American Samoa, a myriad of possibilities would arise. Existing residential and business consumers would benefit from reduced electricity costs. The tuna canneries, demanding about 76% of the island's process heat requirements, may be able to use process heat from a geothermal source. Potential new industries include health spas, aquaculture, wood products, large domestic and transhipment refrigerated warehouses, electric cars, ocean nodule processing, and a hydrogen economy. There are no territorial statutory laws of American Samoa claiming or reserving any special rights (including mineral rights) to the territorial government, or other interests adverse to a land owner, for subsurface content of real property. Technically, an investigation has revealed that American Samoa does possess a geological environment conducive to geothermal energy development. Further studies and test holes are warranted.

  14. Dirac Quasinormal modes of MSW black holes

    E-Print Network [OSTI]

    Sebastian, Saneesh

    2014-01-01T23:59:59.000Z

    In this paper we study the Dirac quasinormal modes of an uncharged 2 + 1 black hole proposed by Mandal et. al and referred to as MSW black hole in this work. The quasi- normal mode is studied using WKB approximation method. The study shows that the imaginary part of quasinormal frequencies increases indicating that the oscillations are damping and hence the black hole is stable against Dirac perturbations.

  15. Dirac Quasinormal modes of MSW black holes

    E-Print Network [OSTI]

    Saneesh Sebastian; V. C. Kuriakose

    2014-01-15T23:59:59.000Z

    In this paper we study the Dirac quasinormal modes of an uncharged 2 + 1 black hole proposed by Mandal et. al and referred to as MSW black hole in this work. The quasi- normal mode is studied using WKB approximation method. The study shows that the imaginary part of quasinormal frequencies increases indicating that the oscillations are damping and hence the black hole is stable against Dirac perturbations.

  16. Black hole entropy: inside or out?

    E-Print Network [OSTI]

    Ted Jacobson; Donald Marolf; Carlo Rovelli

    2005-01-14T23:59:59.000Z

    A trialogue. Ted, Don, and Carlo consider the nature of black hole entropy. Ted and Carlo support the idea that this entropy measures in some sense ``the number of black hole microstates that can communicate with the outside world.'' Don is critical of this approach, and discussion ensues, focusing on the question of whether the first law of black hole thermodynamics can be understood from a statistical mechanics point of view.

  17. Spinning Black Holes as Particle Accelerators

    E-Print Network [OSTI]

    Ted Jacobson; Thomas P. Sotiriou

    2010-01-21T23:59:59.000Z

    It has recently been pointed out that particles falling freely from rest at infinity outside a Kerr black hole can in principle collide with arbitrarily high center of mass energy in the limiting case of maximal black hole spin. Here we aim to elucidate the mechanism for this fascinating result, and to point out its practical limitations, which imply that ultra-energetic collisions cannot occur near black holes in nature.

  18. Probing the Constituent Structure of Black Holes

    E-Print Network [OSTI]

    Lukas Gruending; Stefan Hofmann; Sophia Müller; Tehseen Rug

    2014-12-12T23:59:59.000Z

    We calculate the cross section for scattering processes between graviton emitters on the near side of a Schwarzschild surface and absorbers on its far side, that is black hole constituents. We show that these scatterings allow to directly extract structural observables such as the momentum distribution of black hole constituents. For this we employ a quantum bound state description originally developed in quantum chromodynamics and recently applied to general relativity that allows to consider black holes in a relativistic Hartree like framework.

  19. Remarks on Renormalization of Black Hole Entropy

    E-Print Network [OSTI]

    Sang Pyo Kim; Sung Ku Kim; Kwang-Sup Soh; Jae Hyung Yee

    1996-07-07T23:59:59.000Z

    We elaborate the renormalization process of entropy of a nonextremal and an extremal Reissner-Nordstr\\"{o}m black hole by using the Pauli-Villars regularization method, in which the regulator fields obey either the Bose-Einstein or Fermi-Dirac distribution depending on their spin-statistics. The black hole entropy involves only two renormalization constants. We also discuss the entropy and temperature of the extremal black hole.

  20. Absorption cross section of RN black hole

    E-Print Network [OSTI]

    Sini R.; V. C. Kuriakose

    2007-08-23T23:59:59.000Z

    The behavior of a charged scalar field in the RN black hole space time is studied using WKB approximation. In the present work it is assumed that matter waves can get reflected from the event horizon. Using this effect, the Hawking temperature and the absorption cross section for RN black hole placed in a charged scalar field are calculated. The absorption cross section $\\sigma _{abs}$ is found to be inversely proportional to square of the Hawking temperature of the black hole.

  1. Black holes with massive graviton hair

    E-Print Network [OSTI]

    Richard Brito; Vitor Cardoso; Paolo Pani

    2013-09-03T23:59:59.000Z

    No-hair theorems exclude the existence of nontrivial scalar and massive vector hair outside four-dimensional, static, asymptotically flat black-hole spacetimes. We show, by explicitly building nonlinear solutions, that black holes can support massive graviton hair in theories of massive gravity. These hairy solutions are, most likely, the generic end state of the recently discovered monopole instability of Schwarzschild black holes in massive graviton theories.

  2. Red-black Trees To know what a red-black tree is (10.1).

    E-Print Network [OSTI]

    Liang, Y. Daniel

    809 CHAPTER 10 Red-black Trees Objectives · To know what a red-black tree is (§10.1). · To convert a red-black tree to a 2-4 tree and vice versa (§10.2). · To design the RBTree class that extends the BinaryTree class (§10.3). · To insert an element in a red-black tree and resolve the double red problem

  3. Destroying black holes with test bodies

    E-Print Network [OSTI]

    Ted Jacobson; Thomas P. Sotiriou

    2010-06-09T23:59:59.000Z

    If a black hole can accrete a body whose spin or charge would send the black hole parameters over the extremal limit, then a naked singularity would presumably form, in violation of the cosmic censorship conjecture. We review some previous results on testing cosmic censorship in this way using the test body approximation, focusing mostly on the case of neutral black holes. Under certain conditions a black hole can indeed be over-spun or over-charged in this approximation, hence radiative and self-force effects must be taken into account to further test cosmic censorship.

  4. Black Liquor Research Program symposium: proceedings

    SciTech Connect (OSTI)

    Emerson, D.B.; Whitworth, B.A.

    1985-03-01T23:59:59.000Z

    In the paper pulp industry's recovery boilers, black liquor is sprayed in through nozzle guns near the top of the furnace. This report includes eight papers. (DLC)

  5. Black Hills Power- Commercial Energy Efficiency Programs

    Broader source: Energy.gov [DOE]

    Black Hills Power provides rebates for its commercial customers who install energy efficient heat pumps, motors, variable frequency drives, lighting, and water heaters. Custom rebates for approved...

  6. Black Hills Power- Residential Customer Rebate Program

    Broader source: Energy.gov [DOE]

    Black Hills Power offers cash rebates to residential customers who purchase and install energy efficient equipment in their homes. Incentives exist for water heaters, demand control units, air...

  7. Lower Dimensional Black Holes: Inside and Out

    E-Print Network [OSTI]

    R. B. Mann

    1995-01-27T23:59:59.000Z

    I survey the physics of black holes in two and three spacetime dimensions, with special attention given to an understanding of their exterior and interior properties.

  8. International House Collection / William Black (collector)

    E-Print Network [OSTI]

    Handy, Todd C.

    International House Collection / William Black (collector) Revised by Erwin Wodarczak (2010 (collector). ­ 1950-1953. 45 p. of textual records. Biographical Sketch Born in London, England, William

  9. Black Holes: from Speculations to Observations

    E-Print Network [OSTI]

    Thomas W. Baumgarte

    2006-04-13T23:59:59.000Z

    This paper provides a brief review of the history of our understanding and knowledge of black holes. Starting with early speculations on ``dark stars'' I discuss the Schwarzschild "black hole" solution to Einstein's field equations and the development of its interpretation from "physically meaningless" to describing the perhaps most exotic and yet "most perfect" macroscopic object in the universe. I describe different astrophysical black hole populations and discuss some of their observational evidence. Finally I close by speculating about future observations of black holes with the new generation of gravitational wave detectors.

  10. Superconducting Hair on Charged Black String Background

    E-Print Network [OSTI]

    Lukasz Nakonieczny; Marek Rogatko

    2012-01-25T23:59:59.000Z

    Behaviour of Dirac fermions in the background of a charged black string penetrated by an Abelian Higgs vortex is elaborated. One finds the evidence that the system under consideration can support fermion fields acting like a superconducting cosmic string in the sence that a nontrivial Dirac fermion field can be carried by the system in question. The case of nonextremal and extremal black string vortex systems were considered. The influence of electric and Higgs charge, the winding number and the fermion mass on the fermion localization near the black string event horizon was studied. It turned out that the extreme charged black string expelled fermion fields more violently comparing to the nonextremal one.

  11. A new spin on black hole hair

    E-Print Network [OSTI]

    Herdeiro, Carlos A R

    2014-01-01T23:59:59.000Z

    We show that scalar hair can be added to rotating, vacuum black holes of general relativity. These hairy black holes (HBHs) clarify a lingering question concerning gravitational solitons: if a black hole can be added at the centre of a boson star, as it typically can for other solitons. We argue that it can, but only if it is spinning. The existence of such HBHs is related to the Kerr superradiant instability triggered by a massive scalar field. This connection leads to the following conjecture: a (hairless) black hole which is afflicted by the superradiant instability of a given field must allow hairy generalizations with that field.

  12. american subtropical area: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    English American Studies Sussex, University of 30 Grant Title: AMERICAN ASSOCIATION OF UNIVERSITY WOMEN (AAUW) -AMERICAN FELLOWSHIPS Funding Opportunity Number: NA Engineering...

  13. Society of American Indian Government Employees Annual National Training Program

    Broader source: Energy.gov [DOE]

    Event includes plenary session, American Indian law classes, Native American youth workshops, cultural presentations, and a veterans program. Sponsored by the Society of American Indian Government...

  14. Black Swans, Dragons-Kings and Prediction Black Swan (Cygnus atratus)

    E-Print Network [OSTI]

    Black Swans, Dragons-Kings and Prediction Black Swan (Cygnus atratus) www.er.ethz.ch Didier hurricanes normalized to 1995 dollars by inflation, personal property increases and coastal county population;12 2008 FINANCIAL CRISIS #12;Crises are not but "Dragon-kings" Dragon-king hypothesis #12;Black Swan story

  15. National Society of Black EngineersNational Society of Black Engineers Columbia University Chapter

    E-Print Network [OSTI]

    Hone, James

    National Society of Black EngineersNational Society of Black Engineers Columbia University Chapter #12;Columbia University Greetings NSBE Family and Friends! My name is Ken Yearwood, the 2008-2009 Columbia University NSBE (National Society of Black Engineers) Chapter President. On behalf of the Columbia

  16. Coelho Neto: Introduction of African Culture into Brazilian Drama

    E-Print Network [OSTI]

    Pierson, Colin M.

    1976-04-01T23:59:59.000Z

    importantly, he showed (in comic fashion) the direct influence that they exerted on all social strata in Brazil—the hypocritical facade of the white middle class, feigning ignorance of the very existence of African customs but affected by them at every turn... tan' longínquo do caxambu e a toada melancólica da cantilena dos negros." Unlike O Relicario, this play has no main theme. Rather, the play is sustained by the plot, which is very simple: Valentina, Anatólio's daughter, is pregnant and unmarried...

  17. Biomass energy use in developing countries: An African perspective

    SciTech Connect (OSTI)

    Karekezi, S.; Ewagata, E. [AFREPREN and FWD, Nairobi (Kenya)

    1994-09-01T23:59:59.000Z

    Biomass forms the bulk of the energy supply of the developing world with the largest share consumed in the household sector as either fuelwood or charcoal for cooking, lighting and space heating. However there are a number of constraints facing the use of biomass if it is to be sustainable. Stephen Karekezi and Esther Ewagata of the African Energy Policy Research Network (AFREPREN) outline these constraints and discuss the modernisation of the traditional technologies now underway.

  18. Deep Frames, White Men's Discourse, and Black Female Bodies

    E-Print Network [OSTI]

    Slatton, Brittany C.

    2012-02-14T23:59:59.000Z

    In this qualitative study, I examine the persistent trend of black women as an excluded relationship partner for white men. Integral to understanding the exclusion of black women as relationship partners is the construction of black female bodies...

  19. Causticizing for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    Scott Sinquefeld; James Cantrell; Xiaoyan Zeng; Alan Ball; Jeff Empie

    2009-01-07T23:59:59.000Z

    The cost-benefit outlook of black liquor gasification (BLG) could be greatly improved if the smelt causticization step could be achieved in situ during the gasification step. Or, at a minimum, the increase in causticizing load associated with BLG could be mitigated. A number of chemistries have been proven successful during black liquor combustion. In this project, three in situ causticizing processes (titanate, manganate, and borate) were evaluated under conditions suitable for high temperature entrained flow BLG, and low temperature steam reforming of black liquor. The evaluation included both thermodynamic modeling and lab experimentation. Titanate and manganate were tested for complete direct causticizing (to thus eliminate the lime cycle), and borates were evaluated for partial causticizing (to mitigate the load increase associated with BLG). Criteria included high carbonate conversion, corresponding hydroxide recovery upon hydrolysis, non process element (NPE) removal, and economics. Of the six cases (three chemistries at two BLG conditions), only two were found to be industrially viable: titanates for complete causticizing during high temperature BLG, and borates for partial causticizing during high temperature BLG. These two cases were evaluated for integration into a gasification-based recovery island. The Larsen [28] BLG cost-benefit study was used as a reference case for economic forecasting (i.e. a 1500 tpd pulp mill using BLG and upgrading the lime cycle). By comparison, using the titanate direct causticizing process yielded a net present value (NPV) of $25M over the NPV of BLG with conventional lime cycle. Using the existing lime cycle plus borate autocausticizing for extra capacity yielded a NPV of $16M.

  20. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Jun Wei

    2005-03-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. This report covers Task 1.3, Simulative corrosion of candidate materials developed by refractory producers and in the laboratory based on the results of Task 1.1 and Task 1.2. Refractories provided by in-kind sponsors were tested by cup testing, density/porosity determinations, chemical analysis and microscopy. The best performing materials in the cup testing were fused cast materials. However, 2 castables appear to outperforming any of the previously tested materials and may perform better than the fused cast materials in operation. The basis of the high performance of these materials is the low open porosity and permeability to black liquor smelt.

  1. E-Print Network 3.0 - african equatorial margin Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    margin Page: << < 1 2 3 4 5 > >> 1 Proposed Research Studentship Plate modelling, transform faults and the Cretaceous to Summary: Project Description The African equatorial...

  2. E-Print Network 3.0 - african continental margin Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    margin Page: << < 1 2 3 4 5 > >> 1 Proposed Research Studentship Plate modelling, transform faults and the Cretaceous to Summary: Project Description The African equatorial...

  3. E-Print Network 3.0 - african countries implications Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Restoration Technologies 2 The lecture will take place Tuesday June 21st 2011 Summary: sustainable development and poverty reduction strategies in African countries. During the...

  4. E-Print Network 3.0 - african great apes Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Biological Sciences, Duquesne University Collection: Biology and Medicine 57 Habituation, ecotourism and research for conservation of western gorillas in Central African Republic...

  5. E-Print Network 3.0 - african states ecowas Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    African States (ECOWAS). The ECOWAS envisions the promotion of the economic... and political ... Source: Ecole Polytechnique, Centre de mathmatiques Collection: Mathematics 3...

  6. E-Print Network 3.0 - african fruit fly Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to arboreal or flying frugivores; 5... used the criteria that define African elephant ... Source: Jordano, Pedro - Estacin Biolgica de Doana, Consejo Superior De...

  7. E-Print Network 3.0 - african naked mole Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    priorities of afrotherian mammals (Afrotheria, Mammalia) Summary: African elephant shrew Short-tailed shrew tenrec Cowan's shrew tenrec Grant's golden mole Western...

  8. E-Print Network 3.0 - african loxodonta africana Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in woolly mammoth hemoglobin confer biochemical Summary: sequences of African elephant (Loxodonta africana), Asian elephant (Elaphas maximus) and woolly mammoth... .1038...

  9. How to stop the African elephant population from extermination; Causes, Achievements and Consequences.

    E-Print Network [OSTI]

    Jansson, Lina

    2006-01-01T23:59:59.000Z

    ?? Humans’ hunting for ivory has had a serious impact of the African elephant population. Ivory has throughout history been a symbol of manhood and… (more)

  10. E-Print Network 3.0 - african hominoid trichotomy Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of Genetics, Yale University Collection: Biology and Medicine 3 I1UMAN EVOLUTION D. Marchand Summary: M., 1992. Reexamination of th African Hominoid Trichotomy with Additional...

  11. E-Print Network 3.0 - african commercial biooxidation Sample...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Art Gary Marsden, Katherine Malan & Edwin... in creating, and providing access to, a database of African cultural artifacts. The submission is targeted... at the section 2 in the...

  12. E-Print Network 3.0 - african computer scientists Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    computer scientists Search Powered by Explorit Topic List Advanced Search Sample search results for: african computer scientists Page: << < 1 2 3 4 5 > >> 1 http:chronicle.com...

  13. E-Print Network 3.0 - african cichlid diversity Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    interests exist. * E-mail: robin@nasw.org African cichlids are some of the most diverse fish... contributes to the tremendous ... Source: Carleton, Karen L. - Department of...

  14. E-Print Network 3.0 - african cichlid radiations Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Science Writer... , Fairfield, California, United States of America African cichlid fish form new species faster than any other... into the significance of the published work....

  15. E-Print Network 3.0 - african edible seeded Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to corner the market... for greener alternatives. Not to be outdone African powerhouse South Africa is also preparing From Mali Source: Louisiana Forest Products Development...

  16. E-Print Network 3.0 - african ivory nut Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cameroon... Lesotho Sierra Leone Cape Verde Liberia Somalia Central African Rep Libya South Africa Chad Source: Grant, James D.E. - Fakultt fr Mathematik, Universitt Wien...

  17. E-Print Network 3.0 - african countries including Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    year. In Africa, countries including Malawi, Mali, Mauritius, Nigeria, Senegal, South Africa... to food security is particularly profound for African countries where food is...

  18. E-Print Network 3.0 - african gold mines Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    around. "Is... for greener alternatives. Not to be outdone African powerhouse South Africa is also preparing ... Source: Louisiana Forest Products Development Center...

  19. E-Print Network 3.0 - addressing south african Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    on Concepts and Cognition Collection: Multidisciplinary Databases and Resources 7 German-South African Research Lecture Series 2009 presents: The Science and Ethics of Global...

  20. E-Print Network 3.0 - african foods part Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in July... Global biofuel drive raises risk of eviction for African ... Source: Louisiana Forest Products Development Center Collection: Renewable Energy 2 From Isolation to...

  1. E-Print Network 3.0 - african primary health Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dvisor Kathryn de Luna Jeffrey Fleisher Degrees Offered: None African Studies is a broad-ranging field... that is committed to an interdisciplinary approach to the study of...

  2. E-Print Network 3.0 - african universities recommendations Sample...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dvisor Kathryn de Luna Jeffrey Fleisher Degrees Offered: None African Studies is a broad-ranging field... that is committed to an interdisciplinary approach to the study of...

  3. E-Print Network 3.0 - african dwarf rams Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    African Astronomical Observatory, PO... with it being the accretion regions on the white dwarf. This is in contrast to Stobie et al who concluded... that the eclipsed...

  4. E-Print Network 3.0 - african public sector Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in England, no. 210183. Its sole Trustee is The Wellcome Trust Limited, a company registered in England, Summary: conditions such as African sleeping sickness,...

  5. E-Print Network 3.0 - african equatorial rain Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    , and K. Walker Painemilla, editors. Hunting and Bushmeat Utilization in the African rain forest... , and the transformation of resource use in Central ... Source: Hardin, Rebecca...

  6. E-Print Network 3.0 - african locust bean Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    have provided resources to support more than 80 youngAfricans... of tomato, pepper, potato, beans, sorghum, passion fruit, coffee and banana. In addition, IPM CRSP global......

  7. E-Print Network 3.0 - african traditional cassava Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Crop Science Journal, 2(4): 331... African Pests and Diseases of Cassava, Yam, Sweet Potato ... Source: Scharf, Michael E. - Department of Entomology, Purdue University...

  8. E-Print Network 3.0 - african cassava mosaic Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Crop Science Journal, 2(4): 331... African Pests and Diseases of Cassava, Yam, Sweet Potato ... Source: Scharf, Michael E. - Department of Entomology, Purdue University...

  9. E-Print Network 3.0 - african frog xenopus Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    11 Blood Parasites of Frogs From an Equatorial African Montane Forest in Western Uganda Anne M. Readel and Tony L. Goldberg*, Program in Ecology, Evolution, and Conservation...

  10. E-Print Network 3.0 - african freshwater phreatoicidean Sample...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    African Fish Eagle Huliwetus vacgeer were studied in Kyambura Game Reserve, southwest Uganda. Density... comparison with 0.9 kmz).Interspecific competition for space was likely...

  11. E-Print Network 3.0 - african national collection Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Development of African Law Fine 48 4... Politics and Agricultural Development in Uganda Fine 127 ... Source: Northwestern University, Dynamics of Complex Systems in Science...

  12. african high-level regional: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    model (MRCM) in simulating the West African monsoon. The MRCM is built on the Regional Climate Model, ... Im, Eun-Soon 6 FREEDOM TO INNOVATE BIOTECHNOLOGY IN AFRICAS...

  13. E-Print Network 3.0 - african agropastoral systems Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Change and Social Action in East Africa Summary: .1.1 Main problems and potentials of sustainable development The East African region has traditionally... to land, natural and...

  14. E-Print Network 3.0 - african community influenced Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Executive Committee p.3 Summary: to the scholarly community at PAS. PAS awards graduate certificates in African studies to those who fulfill... Academics Community support,...

  15. E-Print Network 3.0 - african communities knowledge Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Executive Committee p.3 Summary: to the scholarly community at PAS. PAS awards graduate certificates in African studies to those who fulfill... Academics Community support,...

  16. E-Print Network 3.0 - african virus adapting Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of new Simian foamy viruses from African nonhuman Primates. Virology, 237... A. P. JACKSON AND M.A. CHARLESTON HOST RNA-VIRUS COPHYLOGENY 1 A ... Source: Charleston,...

  17. E-Print Network 3.0 - african ephemeral rivers Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in an African savanna ecosystem J.V. Redferna,, C... in the Kruger National Park, South Africa, we assess the contribution of perennial and ephemeral water sources......

  18. E-Print Network 3.0 - african cattle breeds Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: African cattle breeds. S. C. Agric. (Genetics) Thesis. University of Pretoria, South Africa. 12;... relationships among cattle breeds in the formulation of rational...

  19. E-Print Network 3.0 - african buffalo syncerus Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of fire on bird diversity and abundance in an East African savanna Summary: buselaphus Pallas), steinbucks (Raphicerus campestris Thunberg), cape buffalos (Syncerus caffer...

  20. E-Print Network 3.0 - african sylvatic cycle Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and clones - summary P. y. yoelii (Central African Republic) Isolates Source: Maizels, Rick - School of Biological Sciences, University of Edinburgh Collection: Environmental...

  1. Congressional Black Caucus Foundation, Inc. Meet/Match Procurement...

    Broader source: Energy.gov (indexed) [DOE]

    Congressional Black Caucus Foundation, Inc. MeetMatch Procurement Forum Congressional Black Caucus Foundation, Inc. MeetMatch Procurement Forum Presented by Congresswoman Sheila...

  2. White House Initiative on Historically Black Colleges and Universities...

    Broader source: Energy.gov (indexed) [DOE]

    White House Initiative on Historically Black Colleges and Universities White House Initiative on Historically Black Colleges and Universities How WHI-HBCU are ran White House...

  3. Austin E. Quigley Black Box Theater Proposal Form

    E-Print Network [OSTI]

    Hone, James

    -1- Austin E. Quigley Black Box Theater Proposal Form Sponsoring Organization indicate that you have read the Austin E. Quigley Black Box Theatre Policy and Procedure Guidelines

  4. Energy conservation for dynamical black holes

    E-Print Network [OSTI]

    Sean A. Hayward

    2004-08-03T23:59:59.000Z

    An energy conservation law is described, expressing the increase in mass-energy of a general black hole in terms of the energy densities of the infalling matter and gravitational radiation. For a growing black hole, this first law of black-hole dynamics is equivalent to an equation of Ashtekar & Krishnan, but the new integral and differential forms are regular in the limit where the black hole ceases to grow. An effective gravitational-radiation energy tensor is obtained, providing measures of both ingoing and outgoing, transverse and longitudinal gravitational radiation on and near a black hole. Corresponding energy-tensor forms of the first law involve a preferred time vector which plays the role for dynamical black holes which the stationary Killing vector plays for stationary black holes. Identifying an energy flux, vanishing if and only if the horizon is null, allows a division into energy-supply and work terms, as in the first law of thermodynamics. The energy supply can be expressed in terms of area increase and a newly defined surface gravity, yielding a Gibbs-like equation, with a similar form to the so-called first law for stationary black holes.

  5. Quantum Entropy of Charged Rotating Black Holes

    E-Print Network [OSTI]

    R. B. Mann

    1996-07-10T23:59:59.000Z

    I discuss a method for obtaining the one-loop quantum corrections to the tree-level entropy for a charged Kerr black hole. Divergences which appear can be removed by renormalization of couplings in the tree-level gravitational action in a manner similar to that for a static black hole.

  6. Black holes cannot support conformal scalar hair

    E-Print Network [OSTI]

    T. Zannias

    1994-09-14T23:59:59.000Z

    It is shown that the only static asymptotically flat non-extrema black hole solution of the Einstein-conformally invariant scalar field equations having the scalar field bounded on the horizon, is the Schwarzschild one. Thus black holes cannot be endowed with conformal scalar hair of finite length.

  7. The Kansas Black Bass Tournament Monitoring Program

    E-Print Network [OSTI]

    The Kansas Black Bass (Micropterus spp.) Tournament Monitoring Program was begun by the Kansas Fish and Game program of the Kansas Fish and Game Commission avoids both of these prob- lems. The Kansas Black Bass annually to each of the bass clubs in Kansas before the bulk of fishing begins, and clubs are asked

  8. Topological Black Holes in Quantum Gravity

    E-Print Network [OSTI]

    J. Kowalski-Glikman; D. Nowak-Szczepaniak

    2000-07-31T23:59:59.000Z

    We derive the black hole solutions with horizons of non-trivial topology and investigate their properties in the framework of an approach to quantum gravity being an extension of Bohm's formulation of quantum mechanics. The solutions we found tend asymptotically (for large $r$) to topological black holes. We also analyze the thermodynamics of these space-times.

  9. Cooking with Black-Eyed Peas

    E-Print Network [OSTI]

    Anding, Jenna

    2008-12-09T23:59:59.000Z

    the most protein from the peas, serve them with grain foods such as corn, rice or wheat. A serving size is ? cup. Uses Use black-eyed peas as a tasty side dish or include it in casseroles, soups, and salads. Black-eyed peas are often packaged in 1- or 2...

  10. Distortion of Schwarzschild-anti-de Sitter black holes to black strings

    E-Print Network [OSTI]

    A. Tomimatsu

    2005-06-25T23:59:59.000Z

    Motivated by the existence of black holes with various topologies in four-dimensional spacetimes with a negative cosmological constant, we study axisymmetric static solutions describing any large distortions of Schwarzschild-anti-de Sitter black holes parametrized by the mass $m$. Under the approximation such that $m$ is much larger than the anti-de Sitter radius, it is found that a cylindrically symmetric black string is obtained as a special limit of distorted spherical black holes. Such a prolonged distortion of the event horizon connecting a Schwarzschild-anti-de Sitter black hole to a black string is allowed without violating both the usual black hole thermodynamics and the hoop conjecture for the horizon circumference.

  11. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang; Alireza Rezaie

    2004-10-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  12. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick; Musa Karakus; Alireza Rezaie

    2004-03-30T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO2 and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  13. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang; Alireza Rezaie

    2004-07-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  14. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang

    2005-10-01T23:59:59.000Z

    The University of Missouri-Rolla identified materials that permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project was to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study attempted to define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials were selected/developed that either react with the gasifier environment to form protective surfaces in-situ; and were functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development were divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  15. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr.; Alireza Rezaie

    2004-04-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  16. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang; Jun Wei

    2005-04-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  17. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang

    2005-07-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  18. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Liang; Jun Wei

    2005-01-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO{sub 2} and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  19. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Alireza Rezaie

    2003-12-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LFHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesia aluminate and baria aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  20. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Alireza Rezaie; Xiaoting Liang; Musa Karakus; Jun Wei

    2005-12-01T23:59:59.000Z

    The University of Missouri-Rolla identified materials that permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project was to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study attempted to define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials were selected or developed that reacted with the gasifier environment to form protective surfaces in-situ; and were functionally-graded to give the best combination of thermal, mechanical and physical properties and chemical stability; and are relatively inexpensive, reliable repair materials. Material development was divided into 2 tasks: Task 1 was development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesium aluminate and barium aluminate for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO2 and SiC. Task 2 was finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  1. REFRACTORY FOR BLACK LIQUOR GASIFIERS

    SciTech Connect (OSTI)

    William L. Headrick Jr.; Alireza Rezaie

    2003-12-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LFHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesia aluminate and baria aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  2. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Alireza Rezaie

    2003-08-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LFHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesia aluminate and baria aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  3. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    Robert E. Moore; William L. Headrick; Alireza Rezaie

    2003-03-31T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the materials problems encountered during the operation of low-pressure high-temperature (LFHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. Material development will be divided into 2 tasks: Task 1, Development and property determinations of improved and existing refractory systems for black liquor containment. Refractory systems of interest include magnesia aluminate and baria aluminate spinels for binder materials, both dry and hydratable, and materials with high alumina contents, 85-95 wt%, aluminum oxide, 5.0-15.0 wt%, and BaO, SrO, CaO, ZrO and SiC. Task 2, Finite element analysis of heat flow and thermal stress/strain in the refractory lining and steel shell of existing and proposed vessel designs. Stress and strain due to thermal and chemical expansion has been observed to be detrimental to the lifespan of existing black liquor gasifiers. The thermal and chemical strain as well as corrosion rates must be accounted for in order to predict the lifetime of the gasifier containment materials.

  4. Black hole and holographic dark energy

    E-Print Network [OSTI]

    Yun Soo Myung

    2007-04-11T23:59:59.000Z

    We discuss the connection between black hole and holographic dark energy. We examine the issue of the equation of state (EOS) for holographic energy density as a candidate for the dark energy carefully. This is closely related to the EOS for black hole, because the holographic dark energy comes from the black hole energy density. In order to derive the EOS of a black hole, we may use its dual (quantum) systems. Finally, a regular black hole without the singularity is introduced to describe an accelerating universe inside the cosmological horizon. Inspired by this, we show that the holographic energy density with the cosmological horizon as the IR cutoff leads to the dark energy-dominated universe with $\\omega_{\\rm \\Lambda}=-1$.

  5. Black Hole Thermodynamics Based on Unitary Evolutions

    E-Print Network [OSTI]

    Feng, Yu-Lei

    2015-01-01T23:59:59.000Z

    In this paper, we try to construct black hole thermodynamics based on the fact that, the formation and evaporation of a black hole can be described by quantum unitary evolutions. First, we show that the Bekenstein-Hawking entropy $S_{BH}$ cannot be a Boltzmann or thermal entropy. To confirm this statement, we show that the original black hole's "first law" cannot be treated as the first law of thermodynamics formally, due to some missing metric perturbations caused by matter. Then, by including those (quantum) metric perturbations, we show that the black hole formation and evaporation can be described in a unitary manner effectively, through a quantum channel between the exterior and interior of the event horizon. In this way, the paradoxes of information loss and firewall can be resolved effectively. Finally, we show that black hole thermodynamics can be constructed in an ordinary way, by constructing statistical mechanics.

  6. An electromagnetic black hole made of metamaterials

    E-Print Network [OSTI]

    Cheng, Qiang

    2009-01-01T23:59:59.000Z

    Traditionally, a black hole is a region of space with huge gravitational field in the means of general relativity, which absorbs everything hitting it including the light. In general relativity, the presence of matter-energy densities results in the motion of matter propagating in a curved spacetime1, which is similar to the electromagnetic-wave propagation in a curved space and in an inhomogeneous metamaterial2. Hence one can simulate the black hole using electromagnetic fields and metamaterials. In a recent theoretical work, an optical black hole has been proposed based on metamaterials, in which the numerical simulations showed a highly efficient light absorption3. Here we report the first experimental demonstration of electromagnetic black hole in the microwave frequencies. The proposed black hole is composed of non-resonant and resonant metamaterial structures, which can absorb electromagnetic waves efficiently coming from all directions due to the local control of electromagnetic fields. Hence the elect...

  7. Black holes in Asymptotically Safe Gravity

    E-Print Network [OSTI]

    Saueressig, Frank; D'Odorico, Giulio; Vidotto, Francesca

    2015-01-01T23:59:59.000Z

    Black holes are among the most fascinating objects populating our universe. Their characteristic features, encompassing spacetime singularities, event horizons, and black hole thermodynamics, provide a rich testing ground for quantum gravity ideas. In this note we observe that the renormalization group improved Schwarzschild black holes constructed by Bonanno and Reuter within Weinberg's asymptotic safety program constitute a prototypical example of a Hayward geometry used to model non-singular black holes within quantum gravity phenomenology. Moreover, they share many features of a Planck star: their effective geometry naturally incorporates the one-loop corrections found in the effective field theory framework, their Kretschmann scalar is bounded, and the black hole singularity is replaced by a regular de Sitter patch. The role of the cosmological constant in the renormalization group improvement process is briefly discussed.

  8. Black Hole Superradiance in Dynamical Spacetime

    E-Print Network [OSTI]

    William E. East; Fethi M. Ramazano?lu; Frans Pretorius

    2014-03-14T23:59:59.000Z

    We study the superradiant scattering of gravitational waves by a nearly extremal black hole (dimensionless spin $a=0.99$) by numerically solving the full Einstein field equations, thus including backreaction effects. This allows us to study the dynamics of the black hole as it loses energy and angular momentum during the scattering process. To explore the nonlinear phase of the interaction, we consider gravitational wave packets with initial energies up to $10%$ of the mass of the black hole. We find that as the incident wave energy increases, the amplification of the scattered waves, as well as the energy extraction efficiency from the black hole, is reduced. During the interaction the apparent horizon geometry undergoes sizable nonaxisymmetric oscillations. The largest amplitude excitations occur when the peak frequency of the incident wave packet is above where superradiance occurs, but close to the dominant quasinormal mode frequency of the black hole.

  9. The Prancing J-Settes: Race, Gender, and Class Politics and the Movements of Black Women in the African Diaspora

    E-Print Network [OSTI]

    Wicks, Amber

    2013-07-03T23:59:59.000Z

    ?It?s Not for Everyone? ....................... 19 Mrs. Narah Oatis: The Legend ..................................................................................... 29 ?They Don?t Play in the SWAC...

  10. Home to Hargeisa: Migritude, Pan-Africanism, and the Politics of Movement from Banjo to Black Mamba Boy

    E-Print Network [OSTI]

    Foster, Christopher Ian

    2015-01-01T23:59:59.000Z

    a speech in 1880 titled “Ethiopia Stretching out Her HandsAfrica and its invasion of Ethiopia in 1935. Jama’s motheris now Djibouti, while Ethiopia (Abyssinia) conquered the

  11. Fuel Cell Manufacturing: American Energy and Manufacturing Competitive...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fuel Cell Manufacturing: American Energy and Manufacturing Competitiveness Summit Fuel Cell Manufacturing: American Energy and Manufacturing Competitiveness Summit Presentation on...

  12. american students utilizing: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    PARTNERS American Institute of Chemical Engineers Alpha Omega Epsilon International Engineering & Technical Science Sorority American Society of Heating, Refrigerating and...

  13. Information Technology: American National Standard for

    E-Print Network [OSTI]

    Information Technology: American National Standard for Information Systems-- Data Format Publication 500-245 Information Technology: American National Standard for Information Systems-- Data Format for the Interchange of Fingerprint, Facial, & Scar Mark & Tattoo (SMT) Information Sponsored by Information Technology

  14. Information Technology: American National Standard for Information

    E-Print Network [OSTI]

    Information Technology: American National Standard for Information Systems-- Data Format-271 Information Technology: American National Standard for Information Systems-- Data Format for the Interchange Sponsored by Information Access Division Information Technology Laboratory National Institute of Standards

  15. Information Technology: American National Standard for Information

    E-Print Network [OSTI]

    Information Technology: American National Standard for Information Systems-- Data Format 500-275 Information Technology: American National Standard for Information Systems-- Data Format Coleman, and Patrice Yuh, Editors Sponsored by Information Access Division Information Technology

  16. American Range: Order (2014-CE-23006)

    Broader source: Energy.gov [DOE]

    DOE ordered American Range Corporation to pay a $8,000 civil penalty after finding American Range had failed to certify that certain models of cooking products comply with the applicable energy conservation standards.

  17. American Valve: Order (2010-CW-1411)

    Broader source: Energy.gov [DOE]

    DOE ordered American Valve, Inc. to pay a $5,000 civil penalty after finding American Valve had failed to certify that certain showerhead models comply with the applicable water conservation standards.

  18. Cardiovascular disease, diabetes and established risk factors among populations of sub-Saharan African descent in Europe: a literature review

    E-Print Network [OSTI]

    Agyemang, Charles; Addo, Juliet; Bhopal, Raj; de-Graft Aikins, Ama; Stronks, Karien

    2009-08-11T23:59:59.000Z

    . Dutch African-Suriname men and women are less physically active than the White-Dutch whereas British African women are more physically active than women in the general population. Literature on psychosocial stress shows inconsistent results. Conclusion...

  19. 11/23/11 10:55 AMQualtrics Survey Software Page 1 of 11https://dc-viawest.qualtrics.com/WRQualtricsControlPanel/PopUp.php?PopType=SurveyPrintPreview&WID=_blank

    E-Print Network [OSTI]

    de Lijser, Peter

    ControlPanel/PopUp.php?PopType=SurveyPrintPreview&WID=_blank Male Female African American/ Black American-viawest.qualtrics.com/WRQualtricsControlPanel/PopUp.php?PopType=SurveyPrintPreview&WID=_blank WRE - MARCHhttps://dc-viawest.qualtrics.com/WRQualtricsControlPanel/PopUp.php

  20. Refractory for Black Liquor Gasifiers

    SciTech Connect (OSTI)

    William L. Headrick Jr; Musa Karakus; Xiaoting Laing

    2005-10-01T23:59:59.000Z

    The University of Missouri-Rolla will identify materials that will permit the safe, reliable and economical operation of combined cycle gasifiers by the pulp and paper industry. The primary emphasis of this project will be to resolve the material problems encountered during the operation of low-pressure high-temperature (LPHT) and low-pressure low-temperature (LPLT) gasifiers while simultaneously understanding the materials barriers to the successful demonstration of high-pressure high-temperature (HPHT) black liquor gasifiers. This study will define the chemical, thermal and physical conditions in current and proposed gasifier designs and then modify existing materials and develop new materials to successfully meet the formidable material challenges. Resolving the material challenges of black liquor gasification combined cycle technology will provide energy, environmental, and economic benefits that include higher thermal efficiencies, up to three times greater electrical output per unit of fuel, and lower emissions. In the near term, adoption of this technology will allow the pulp and paper industry greater capital effectiveness and flexibility, as gasifiers are added to increase mill capacity. In the long term, combined-cycle gasification will lessen the industry's environmental impact while increasing its potential for energy production, allowing the production of all the mill's heat and power needs along with surplus electricity being returned to the grid. An added benefit will be the potential elimination of the possibility of smelt-water explosions, which constitute an important safety concern wherever conventional Tomlinson recovery boilers are operated. Developing cost-effective materials with improved performance in gasifier environments may be the best answer to the material challenges presented by black liquor gasification. Refractory materials may be selected/developed that either react with the gasifier environment to form protective surfaces in-situ; are functionally-graded to give the best combination of thermal, mechanical, and physical properties and chemical stability; or are relatively inexpensive, reliable repair materials. This report covers Task 1.4, Industrial Trial of candidate materials developed by refractory producers and in the laboratory based on the results of Task 1.1, 1.2 and 1.3. Refractories provided by in-kind sponsors to industrial installations tested by cup testing, density/porosity determinations, chemical analysis and microscopy. None of the materials produced in this program have been tried in high temperature gasifiers, but the mortar developed Morcocoat SP-P is outperforming other mortars tested at ORNL. MORCO PhosGun M-90-O has shown in laboratory testing to be an acceptable candidate for hot and cold repairs of existing high temperature gasifiers. It may prove to be an acceptable lining material.

  1. Economic Impact of the American Clean Energy

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Economic Impact of the American Clean Energy and Security Act of 2009 on the West Virginia Economy ........................................................................................................................ 1 American Clean Energy and Security Act of 2009 at reducing greenhouse gas emissions. This report examines the impact of the American Clean Energy

  2. American Studies Graduate Program Advisor Form

    E-Print Network [OSTI]

    Dyer, Bill

    American Studies Graduate Program Advisor Form Thank you for your interest in the American Studies must first secure an advisor in order to be considered for admission. The first-year advisor can, American Studies is not in a position to assign faculty to serve as advisors. It is, therefore

  3. AMERICAN UNIVERSITY College of Arts and Science

    E-Print Network [OSTI]

    Lansky, Joshua

    : History of Ideas in America Culture and Thought in 20th Century America U.S. History I & II History of Law with the Bomb: America in the Nuclear Age American Decades: The 1930s (American Studies Course) American Culture in the Nuclear Age Contemporary Culture: Nuclear Culture Emergence of Modern America, 1877-1920 Historical

  4. Culling and the dynamics of the Kruger National Park African elephant population

    E-Print Network [OSTI]

    Pretoria, University of

    Culling and the dynamics of the Kruger National Park African elephant population INTRODUCTION For 30 years, managers have promoted culling as a man- agement tool for African elephant populations of elephant culling as a means of curtailing the anticipated destruction of the vegetation in the Kruger

  5. Protecting the African elephant: A dynamic bioeconomic model of ivory trade

    E-Print Network [OSTI]

    Protecting the African elephant: A dynamic bioeconomic model of ivory trade G. Cornelis van Kooten Accepted 25 May 2008 Available online 7 July 2008 Keywords: Economics Elephant conservation Ivory trade ban on the protection of the African elephant (Laxadonta africana). The model consists of four ivory exporting regions

  6. Late Pleistocene potential distribution of the North African sengi or elephant-shrew

    E-Print Network [OSTI]

    Late Pleistocene potential distribution of the North African sengi or elephant-shrew Elephantulus Desert was recently proposed as the agent of vicariant speciation in the North African elephant studies. Key words: sengi, elephant-shrew, vicariant speciation, ecological niche modelling, Last Glacial

  7. Direct and semi-direct aerosol effects of Southern African1 biomass burning aerosol2

    E-Print Network [OSTI]

    Wood, Robert

    1 Direct and semi-direct aerosol effects of Southern African1 biomass burning aerosol2 Naoko effects of biomass burning aerosols from Southern African fires9 during July-October are investigated region the overall TOA radiative effect from the23 biomass burning aerosols is almost zero due

  8. Infrastructure, biotech top African science summit agenda Roads, electricity, telephones and the internet

    E-Print Network [OSTI]

    Cai, Long

    N E W S Infrastructure, biotech top African science summit agenda Roads, electricity, telephones, the public-private partnership known as the Gavi Alliance, had saved the lives of more than 2 million African of medical doctors, traditional healers and the private sector in Lusaka, Zambia. The meeting is part of his

  9. Southern African Forestry Journal No. 199, November 2003 1 Guest Editorial

    E-Print Network [OSTI]

    Southern African Forestry Journal ­ No. 199, November 2003 1 Guest Editorial Forest Biotechnology PERSPECTIVE South African forestry companies and foresters have been actively applying biotechnology since of the world leaders in plantation forestry and often times, looked upon with some envy by groups in other

  10. Sustainability Analysis of African Palm Biodiesel in Ecuador: An Environmental, Socio-cultural, and Artistic Perspective

    E-Print Network [OSTI]

    Sustainability Analysis of African Palm Biodiesel in Ecuador: An Environmental, Socio Analysis of African Palm Biodiesel in Ecuador: An Environmental, Socio-cultural, and Artistic Perspective-based biodiesel, which is currently imported by the Unites States. An analysis of this specific interaction

  11. Intercomparison and analyses of the climatology of the West African Monsoon in the West African Monsoon Modeling and Evaluation project (WAMME) first model intercomparison experiment

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    and analyses of the climatology of the West African Monsoonand analyses of the climatology Community Atmospheric Model/and analyses of the climatology Fig. 3 JJAS 2003-2006 mean

  12. Thermodynamics of Dyonic Lifshitz Black Holes

    E-Print Network [OSTI]

    Tobias Zingg

    2011-07-15T23:59:59.000Z

    Black holes with asymptotic anisotropic scaling are conjectured to be gravity duals of condensed matter system close to quantum critical points with non-trivial dynamical exponent z at finite temperature. A holographic renormalization procedure is presented that allows thermodynamic potentials to be defined for objects with both electric and magnetic charge in such a way that standard thermodynamic relations hold. Black holes in asymptotic Lifshitz spacetimes can exhibit paramagnetic behavior at low temperature limit for certain values of the critical exponent z, whereas the behavior of AdS black holes is always diamagnetic.

  13. Some remarks on black hole thermodynamics

    E-Print Network [OSTI]

    R. Y. Chiao

    2011-02-04T23:59:59.000Z

    Two thermodynamic "paradoxes" of black hole physics are re-examined. The first is that there is a thermal instability involving two coupled blackbody cavities containing two black holes, and second is that a classical black hole can swallow up entropy in the form of ambient blackbody photons without increasing its mass. The resolution of the second paradox by Bekenstein and by Hawking is re-visited. The link between Hawking radiation and Wigner's superluminal tunneling time is discussed using two equivalent Feynman diagrams, and Feynman's re-interpretation principle.

  14. Spectroscopy and Thermodynamics of MSW Black Hole

    E-Print Network [OSTI]

    Sebastian, Saneesh

    2013-01-01T23:59:59.000Z

    We study the thermodynamics and spectroscopy of a 2+1 dimensional black hole pro- posed by Mandal et. al1 . We put the background space time in Kruskal like co-ordinate and find period with respect to Euclidean time. Different thermodynamic quantities like entropy, specific heat, temperature etc are obtained. The adiabatic invariant for the black hole is found out and quantized using Bohr-Sommerfeld quantization rule. The study shows that the area spectrum of MSW black hole is equally spaced and the value of spacing is found to be h bar

  15. Spectroscopy and Thermodynamics of MSW Black Hole

    E-Print Network [OSTI]

    Saneesh Sebastian; V. C. Kuriakose

    2013-09-02T23:59:59.000Z

    We study the thermodynamics and spectroscopy of a 2+1 dimensional black hole pro- posed by Mandal et. al1 . We put the background space time in Kruskal like co-ordinate and find period with respect to Euclidean time. Different thermodynamic quantities like entropy, specific heat, temperature etc are obtained. The adiabatic invariant for the black hole is found out and quantized using Bohr-Sommerfeld quantization rule. The study shows that the area spectrum of MSW black hole is equally spaced and the value of spacing is found to be h bar

  16. Tunable optical properties of multilayers black phosphorus

    E-Print Network [OSTI]

    Low, Tony; Carvalho, A; Jiang, Yongjin; Wang, Han; Xia, Fengnian; Neto, A H Castro

    2014-01-01T23:59:59.000Z

    We calculated the optical conductivity tensor of multilayers black phosphorus using the Kubo formula within an effective low-energy Hamiltonian. The optical absorption spectra of multilayers black phosphorus are shown to vary sensitively with thickness, doping, and light polarization. In conjunction with experimental spectra obtained from infrared absorption spectroscopy, we discuss the role of interband coupling and disorder on the observed anisotropic absorption spectra. Multilayers black phosphorus might offer attractive alternatives to narrow gap compound semiconductors for optoelectronics across mid- to near-infrared frequencies.

  17. CHARYBDIS: A Black hole event generator.

    E-Print Network [OSTI]

    Harris, Chris M; Richardson, P; Webber, Bryan R

    model of black hole production and decay which can be interfaced to existing Monte Carlo programs using the Les Houches accord [4]. The major new theoretical input to the generator is the inclusion of the recently calculated ‘grey-body’ factors for black... ? TH geometric arguments show that ?l,m? ? (?rh)2 in any number of dimensions, which means that at high energies the shape of the spectrum is like that of a black body. However the low energy behaviour of the grey-body factors is spin-dependent and also...

  18. Black hole hair in higher dimensions

    E-Print Network [OSTI]

    Chao Cao; Yi-Xin Chen; Jian-Long Li

    2008-04-02T23:59:59.000Z

    We study the property of matter in equilibrium with a static, spherically symmetric black hole in D-dimensional spacetime. It requires this kind of matter has an equation of state (\\omega\\equiv p_r/\\rho=-1/(1+2kn), k,n\\in \\mathbb{N}), which seems to be independent of D. However, when we associate this with specific models, some interesting limits on space could be found: (i)(D=2+2kn) while the black hole is surrounded by cosmic strings; (ii)the black hole can be surrounded by linear dilaton field only in 4-dimensional spacetime. In both cases, D=4 is special.

  19. Morphology of PolyethyleneCarbon Black Composites G. BEAUCAGE,1

    E-Print Network [OSTI]

    Beaucage, Gregory

    Morphology of Polyethylene­Carbon Black Composites G. BEAUCAGE,1 S. RANE,1 D. W. SCHAEFER,1 G. LONG-ray scattering (SAXS) study of a conductive grade of carbon black and carbon black­polymer composites(methyl methacrylate); carbon black; filler; composite; conductivity; percolation INTRODUCTION The morphology

  20. Crustal thinning between the Ethiopian and East African Plateaus from modeling Rayleigh wave dispersion

    SciTech Connect (OSTI)

    Benoit, M H; Nyblade, A A; Pasyanos, M E

    2006-01-17T23:59:59.000Z

    The East African and Ethiopian Plateaus have long been recognized to be part of a much larger topographic anomaly on the African Plate called the African Superswell. One of the few places within the African Superswell that exhibit elevations of less than 1 km is southeastern Sudan and northern Kenya, an area containing both Mesozoic and Cenozoic rift basins. Crustal structure and uppermost mantle velocities are investigated in this area by modeling Rayleigh wave dispersion. Modeling results indicate an average crustal thickness of 25 {+-} 5 km, some 10-15 km thinner than the crust beneath the adjacent East African and Ethiopian Plateaus. The low elevations can therefore be readily attributed to an isostatic response from crustal thinning. Low Sn velocities of 4.1-4.3 km/s also characterize this region.

  1. energy company opens American branch

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia

    and environmental science and policy departments at UC Davis, said she thinks it is wonderful that Ecostream is coming to the Sacramento area and that UC Davis is a prime location for research on sustainability. "Inenergy company opens American branch in West Sacramento Substainible energy

  2. AMERICAN NATIONAL STANDARD MEASUREMENT MICROPHONES --

    E-Print Network [OSTI]

    Allen, Jont

    of America 120 Wall Street, 32nd Floor New York, New York 10005-3993 ANSI S1.15-1997/Part 1 ANSIS1/15/11, 08:47:38 Reaffirmed by ANSI July 10, 2001 Reaffirmed by ANSI March 21, 2006 Reaffirmed by ANSI April 8, 2011 #12;The American National Standards Institute, Inc. (ANSI) is the na- tional coordinator

  3. North American Cross-Border

    E-Print Network [OSTI]

    Consumption in USA and Canada 21 Figure 8: Electricity Export as a Fraction of Domestic Consumption in USANorth American Cross-Border Electricity Trade Ian M. Loomis Virginia Center for Coal and Energy ii List of Tables ii List of Figures 1 EXECUTIVE SUMMARY 2 INTRODUCTION 5 ELECTRICITY GENERATION

  4. Phase transitions and Geometrothermodynamics of Regular black holes

    E-Print Network [OSTI]

    R. Tharanath; Jishnu Suresh; V. C. Kuriakose

    2014-06-16T23:59:59.000Z

    In this paper we study the thermodynamics and state space geometry of regular black hole solutions such as Bardeen black hole, Ay\\'{o}n-Beato and Garc\\'{i}a black hole, Hayward black hole and Berej-Matyjasek-Trynieki-Wornowicz black hole. We find that all these black holes show second order thermodynamic phase transitions(SOTPT) by observing discontinuities in heat capacity-entropy graphs as well as the cusp type double point in free energy-temperature graph. Using the formulation of geometrothermodynamics we again find the singularities in the heat capacity of the black holes by calculating the curvature scalar of the Legendre invariant metric.

  5. Reclaiming Blackness: (Counter) Narratives of Racial Kinship in Black Gay Men‘s Sexual Stories

    E-Print Network [OSTI]

    Chambers, Christopher Scott

    2012-07-16T23:59:59.000Z

    and Prevention CME Christian Methodist Episcopal church DL Down Low GLBT Gay, Lesbian, Bisexual and Transgendered HIV Human Immunodeficiency Virus MCC Metropolitan Community Church MSM Men Who Have Sex with Men NCBLG National Coalition of Black Lesbians... and Gays SBM Super Black Man SGL Same Gender Loving STDs Sexually Transmitted Diseases The Forum National Black Gay and Lesbian Leadership Forum TVC Traditional Values Coalition x TABLE OF CONTENTS Page ABSTRACT...

  6. Thermodynamics of Schwarzschild-de Sitter black hole: thermal stability of Nariai black hole

    E-Print Network [OSTI]

    Yun Soo Myung

    2008-03-28T23:59:59.000Z

    We study thermodynamics of the Schwarzschild-de Sitter black hole in five dimensions by introducing two temperatures based on the standard and Bousso-Hawking normalizations. We use the first-law of thermodynamics to derive thermodynamic quantities. The two temperatures indicate that the Nariai black hole is thermodynamically unstable. However, it seems that black hole thermodynamics favors the standard normalization, and does not favor the Bousso-Hawking normalization.

  7. Thermodynamics and evaporation of the noncommutative black hole

    E-Print Network [OSTI]

    Yun Soo Myung; Yong-Wan Kim; Young-Jai Park

    2007-01-21T23:59:59.000Z

    We investigate the thermodynamics of the noncommutative black hole whose static picture is similar to that of the nonsingular black hole known as the de Sitter-Schwarzschild black hole. It turns out that the final remnant of extremal black hole is a thermodynamically stable object. We describe the evaporation process of this black hole by using the noncommutativity-corrected Vaidya metric. It is found that there exists a close relationship between thermodynamic approach and evaporation process.

  8. Black hole evolution: I. Supernova-regulated black hole growth

    E-Print Network [OSTI]

    Dubois, Yohan; Silk, Joseph; Devriendt, Julien; Slyz, Adrianne; Teyssier, Romain

    2015-01-01T23:59:59.000Z

    The growth of a supermassive black hole (BH) is determined by how much gas the host galaxy is able to feed it, which in turn is controlled by the cosmic environment, through galaxy mergers and accretion of cosmic flows that time how galaxies obtain their gas, but also by internal processes in the galaxy, such as star formation and feedback from stars and the BH itself. In this paper, we study the growth of a 10^12 Msun halo at z=2, which is the progenitor of an archetypical group of galaxies at z=0, and of its central BH by means of a high-resolution zoomed cosmological simulation, the Seth simulation. We study the evolution of the BH driven by the accretion of cold gas in the galaxy, and explore the efficiency of the feedback from supernovae (SNe). For a relatively inefficient energy input from SNe, the BH grows at the Eddington rate from early times, and reaches self-regulation once it is massive enough. We find that at early cosmic times z>3.5, efficient feedback from SNe forbids the formation of a settled...

  9. Ethnic identification among blacks and whites

    E-Print Network [OSTI]

    Glass, Teresa Gail

    1996-01-01T23:59:59.000Z

    Two central questions drive this research: (1) Are there trends in ethnic identification among blacks and whites; and (2) Are there meaningful differences between groups that identify differently? I use descriptive and regression analysis...

  10. Energy of 4-Dimensional Black Hole, etc

    E-Print Network [OSTI]

    Dmitriy Palatnik

    2011-07-18T23:59:59.000Z

    In this letter I suggest possible redefinition of mass density, not depending on speed of the mass element, which leads to a more simple stress-energy for an object. I calculate energy of black hole.

  11. Topological Black Holes -- Outside Looking In

    E-Print Network [OSTI]

    R. B. Mann

    1997-09-15T23:59:59.000Z

    I describe the general mathematical construction and physical picture of topological black holes, which are black holes whose event horizons are surfaces of non-trivial topology. The construction is carried out in an arbitrary number of dimensions, and includes all known special cases which have appeared before in the literature. I describe the basic features of massive charged topological black holes in $(3+1)$ dimensions, from both an exterior and interior point of view. To investigate their interiors, it is necessary to understand the radiative falloff behaviour of a given massless field at late times in the background of a topological black hole. I describe the results of a numerical investigation of such behaviour for a conformally coupled scalar field. Significant differences emerge between spherical and higher genus topologies.

  12. Horizon Operator Approach to Black Hole Quantization

    E-Print Network [OSTI]

    G. 't Hooft

    1994-02-21T23:59:59.000Z

    The $S$-matrix Ansatz for the construction of a quantum theory of black holes is further exploited. We first note that treating the metric tensor $g_{\\m\

  13. Towards Black Hole Entropy in Shape Dynamics

    E-Print Network [OSTI]

    Gabriel Herczeg; Vasudev Shyam

    2014-10-21T23:59:59.000Z

    Shape dynamics is classical theory of gravity which agrees with general relativity in many important cases, but possesses different gauge symmetries and constraints. Rather than spacetime diffeomorphism invariance, shape dynamics takes spatial diffeomorphism invariance and spatial Weyl invariance as the fundamental gauge symmetries associated with the gravitational field. Since the area of the event horizon of a black hole transforms under a generic spatial Weyl transformation, there has been some doubt that one can speak sensibly about the thermodynamics of black holes in shape dynamics. The purpose of this paper is to show that by treating the event horizon of a black hole as an interior boundary, one can recover familiar notions of black hole thermodynamics in shape dynamics and define a gauge invariant entropy that agrees with general relativity.

  14. The structure of the carbon black flame

    E-Print Network [OSTI]

    Anderson, W. Kermi

    1945-01-01T23:59:59.000Z

    THE STRUCTURE OF THE CARBON BLACK FLAME A Dissertation By W1 111 ami Kermit Anderson THEHSR UCOF Approval as to style and content recommended Head of tiie Department of Chemistry A Dissertation Submitted to the Faculty of the Agricultural... and Mechanical College of. Texas in Parti ail Fulfilment of the Requirements for the Degree of Doctor of Philosophy THE STRUCTURE OF THE CARBON BLACK FLAME Major Subject: Chemistry AB William Hermit Anderson:\\ t * August 1945 THE STRUCTURE OF THE. CARBON...

  15. Notes on Black Hole Fluctuations and Backreaction

    E-Print Network [OSTI]

    B. L. Hu; Alpan Raval; Sukanya Sinha

    1999-01-05T23:59:59.000Z

    In these notes we prepare the ground for a systematic investigation into the issues of black hole fluctuations and backreaction by discussing the formulation of the problem, commenting on possible advantages and shortcomings of existing works, and introducing our own approach via a stochastic semiclassical theory of gravity based on the Einstein-Langevin equation and the fluctuation-dissipation relation for a self-consistent description of metric fluctuations and dissipative dynamics of the black hole with backreaction of its Hawking radiance.

  16. Electromagnetic Beams Overpass the Black Hole Horizon

    E-Print Network [OSTI]

    Alexander Burinskii

    2008-06-16T23:59:59.000Z

    We show that the electromagnetic excitations of the Kerr black hole have very strong back reaction on metric. In particular, the electromagnetic excitations aligned with the Kerr congruence form the light-like beams which overcome horizon, forming the holes in it, which allows matter to escape interior. So, there is no information lost inside the black hole. This effect is based exclusively on the analyticity of the algebraically special solutions.

  17. Tritium level along Romanian Black Sea Coast

    SciTech Connect (OSTI)

    Varlam, C.; Stefanescu, I.; Popescu, I.; Faurescu, I. [National Inst. for Cryogenic and Isotopic Technologies, PO Box 10, Rm. Valcea, 24050 (Romania)

    2008-07-15T23:59:59.000Z

    Establishing the tritium level along the Romanian Black Sea Coast, after 10 years of exploitation of the nuclear power plant from Cernavoda, is a first step in evaluating its impact on the Black Sea ecosystem. The monitoring program consists of tritium activity concentration measurement in sea water and precipitation from Black Sea Coast between April 2005 and April 2006. The sampling points were spread over the Danube-Black Sea Canal - before the locks Agigea and Navodari, and Black Sea along the coast to the Bulgarian border. The average tritium concentration in sea water collected from the sampling locations had the value of 11.1 {+-} 2.1 TU, close to tritium concentration in precipitation. Although an operating nuclear power plant exists in the monitored area, the values of tritium concentration in two locations are slightly higher than those recorded elsewhere. To conclude, it could be emphasized that until now, Cernavoda NPP did not had any influence on the tritium concentration of the Black Sea Shore. (authors)

  18. Black liquor gasifier/gas turbine cogeneration

    SciTech Connect (OSTI)

    Consonni, S. [Politecnico di Milano (Italy). Dept. di Energetica; Larson, E.D.; Keutz, T.G. [Princeton Univ., NJ (United States); Berglin, N. [Chalmers Univ. of Technology, Goteborg (Sweden). Dept. of Heat and Power Technology

    1998-07-01T23:59:59.000Z

    The kraft process dominates pulp and paper production worldwide. Black liquor, a mixture of lignin and inorganic chemicals, is generated in this process as fiber is extracted from wood. At most kraft mills today, black liquor is burned in Tomlinson boilers to produce steam for on-site heat and power and to recover the inorganic chemicals for reuse in the process. Globally, the black liquor generation rate is about 85,000 MW{sub fuel} (or 0.5 million tonnes of dry solids per day), with nearly 50% of this in North America. The majority of presently installed Tomlinson boilers will reach the end of their useful lives during the next 5 to 20 years. As a replacement for Tomlinson-based cogeneration, black liquor-gasifier/gas turbine cogeneration promises higher electrical efficiency, with prospective environmental, safety, and capital cost benefits for kraft mills. Several companies are pursuing commercialization of black liquor gasification for gas turbine applications. This paper presents results of detailed performance modeling of gasifier/gas turbine cogeneration systems using different black liquor gasifiers modeled on proposed commercial designs.

  19. Asymptotically Lifshitz brane-world black holes

    SciTech Connect (OSTI)

    Ranjbar, Arash, E-mail: a_ranjbar@sbu.ac.ir; Sepangi, Hamid Reza, E-mail: hr-sepangi@sbu.ac.ir; Shahidi, Shahab, E-mail: s_shahidi@sbu.ac.ir

    2012-12-15T23:59:59.000Z

    We study the gravity dual of a Lifshitz field theory in the context of a RSII brane-world scenario, taking into account the effects of the extra dimension through the contribution of the electric part of the Weyl tensor. We study the thermodynamical behavior of such asymptotically Lifshitz black holes. It is shown that the entropy imposes the critical exponent z to be bounded from above. This maximum value of z corresponds to a positive infinite entropy as long as the temperature is kept positive. The stability and phase transition for different spatial topologies are also discussed. - Highlights: Black-Right-Pointing-Pointer Studying the gravity dual of a Lifshitz field theory in the context of brane-world scenario. Black-Right-Pointing-Pointer Studying the thermodynamical behavior of asymptotically Lifshitz black holes. Black-Right-Pointing-Pointer Showing that the entropy imposes the critical exponent z to be bounded from above. Black-Right-Pointing-Pointer Discussing the phase transition for different spatial topologies.

  20. The early American motion picture industry: promoting American cultural hegemony

    E-Print Network [OSTI]

    Wier, Theresa Joanne

    1994-01-01T23:59:59.000Z

    : CULTURAL IMPERIALISM? Introduction Film as imperialism? Technology Cultural Imperialism Economic Trends Conclusion 67 67 69 72 74 79 81 Vl THE ADVENT OF SOUND 85 Introduction Europe Conclusion 85 95 99 VII CONCLUDING COMMENTS 100... classical imperialism to a new category of international exportation founded on the products of the second industrial revolution: steel, the internal combusion [sic] engine and electricity ? including motion pictures" (1980, 81). However, American...