Results 21 to 30 of about 870,646 (299)
Journal of the Indonesian Tropical Animal Agriculture, 2021 This study aimed to estimate natural increase (NI), net replacement rate (NRR), output, and population dynamics of Aceh cattle at Livestock Breeding and Forage Center in Indrapuri, Aceh province.
R. Widyaningrum +2 more
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Stochastic Gain in Population Dynamics [PDF]
Physical Review Letters, 2004 We introduce an extension of the usual replicator dynamics to adaptive learning rates. We show that a population with a dynamic learning rate can gain an increased average payoff in transient phases and can also exploit external noise, leading the system away from the Nash equilibrium, in a reasonance-like fashion.
Traulsen, A., Röhl, T., Schuster, H.
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Annals of Human Biology, 2001 Time-series analysis of parish register series can be used to study human population dynamics at three different levels: (i) The metapopulation of preindustrial rural England. A short wavelength, exogenous oscillation in the burials series of 404 parishes can be detected which, it is suggested, was driven by a cycle of malnutrition associated with ...
Duncan, S, Duncan, C, Scott, S
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LEARNING, EVOLUTION AND POPULATION DYNAMICS [PDF]
Advances in Complex Systems, 2008 We study a complementarity game as a systematic tool for the investigation of the interplay between individual optimization and population effects and for the comparison of different strategy and learning schemes. The game randomly pairs players from opposite populations. It is symmetric at the individual level, but has many equilibria that are more or
JÜRGEN JOST, WEI LI
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Evolutionary dynamics in structured populations [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2010 Abstract Evolutionary dynamics shape the living world around us. At the centre of every evolutionary process is a population of reproducing individuals. The structure of that population affects evolutionary dynamics. The individuals can be molecules, cells, viruses, multicellular organisms or humans.
Nowak, Martin +2 more
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Experimental study on population-based incremental learning algorithms for dynamic optimization problems [PDF]
, 2005 Copyright @ Springer-Verlag 2005.Evolutionary algorithms have been widely used for stationary optimization problems. However, the environments of real world problems are often dynamic. This seriously challenges traditional evolutionary algorithms.
Yang, S +3 more
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Fauna Norvegica, 1986 The stomach contents of 0 to 3 year old salmon were investigated throughout a single 20 hour period in each of July, August and September 1981. There was no marked diurnal variation in stomach content of fry, while that of parr indicated nocturnal ...
Helge Huru
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Recent Population Dynamics of Japanese Encephalitis Virus
Viruses, 2023 Japanese encephalitis virus (JEV) causes acute viral encephalitis in humans and reproductive disorders in pigs. JEV emerged during the 1870s in Japan, and since that time, JEV has been transmitted exclusively throughout Asia, according to known reporting
Jinpeng Xu +8 more
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NONLINEAR RELAXATION IN POPULATION DYNAMICS [PDF]
Scaling and Disordered Systems, 2002 We analyze the nonlinear relaxation of a complex ecosystem composed of many interacting species. The ecological system is described by generalized Lotka-Volterra equations with a multiplicative noise. The transient dynamics is studied in the framework of the mean field theory and with random interaction between the species. We focus on the statistical
Cirone, Markus A. +2 more
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Recoveries of Common Seals Phoca vitulina L. tagged along the Norwegian coast
Fauna Norvegica, 1988 A total of 296 Common Seals have been tagged along the Norwegian coast in the period from 1978 to 1987. Thirty six of the tagged seals have been recovered. Twenty six during their first year of life.
Øystein Wiig, Nils Øien
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