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Money circulation science -fractional dynamics in human Dirk Brockmann

Summary: 1
Money circulation science - fractional dynamics in human
Dirk Brockmann
The dispersal of individuals of a species is the key driving force of various
spatiotemporal phenomena which occur on geographical scales. It can syn-
chronise populations of interacting species, stabilise them, and diversify gene
pools [13]. The geographic spread of human infectious diseases such as in-
fluenza, measles and the recent severe acute respiratory syndrome (SARS) is
essentially promoted by human travel which occurs on many length scales
and is sustained by a variety of means of transportation [48]. In the light of
increasing international trade, intensified human traffic, and an imminent in-
fluenza A pandemic the knowledge of dynamical and statistical properties of
human dispersal is of fundamental importance and acute [7, 9, 10]. A quan-
titative statistical theory for human travel and concomitant reliable forecasts
would substantially improve and extend existing prevention strategies. De-
spite its crucial role, a quantitative assessment of human dispersal remains
elusive and the opinion that humans disperse diffusively still prevails in many
models [11]. In this chapter I will report on a recently developed technique


Source: Amaral, Luis A.N. - Department of Chemical and Biological Engineering, Northwestern University


Collections: Physics; Biology and Medicine