Results 31 to 40 of about 2,912,298 (341)
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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Modeling and forecasting sex differences in mortality: a sex-ratio approach
Genus, 2018 Female and male life expectancies have converged in most industrialized societies in recent decades. To achieve coherent forecasts between females and males, this convergence needs to be considered when forecasting sex-specific mortality.
Marie-Pier Bergeron-Boucher +3 more
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BMJ Open, 2020 Introduction Previous studies have attempted to review the vast body of evidence on adolescent sexual and reproductive health (ASRH), but none has focused on a complete mapping and synthesis of the body of inquiry and evidence on ASRH in sub-Saharan ...
Anthony Idowu Ajayi +6 more
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BMC Public Health, 2018 Background Reducing lifespan inequality is increasingly recognized as a health policy objective. Whereas lifespan inequality declined with rising longevity in most developed countries, Danish life expectancy stagnated between 1975 and 1995 for females ...
José Manuel Aburto +3 more
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Population Dynamics of Rhizobacteria and Its Potency as a Biological Control Agent to Control Fusarium Disease in the Nursery of Agarwood (Aquailaria Malaccensis Lamrk) [PDF]
, 2015 Agarwood is a resin product produced by particular trees and has a certain high comercial value. In Central Bangka Regency, agarwood is the main commodity of forest.
Damiri, N. (Nurhayati) +2 more
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Population Dynamics on Complex Food Webs [PDF]
, 2011 In this work we analyse the topological and dynamical properties of a simple model of complex food webs, namely the niche model. In order to underline competition among species, we introduce "prey" and "predators" weighted overlap graphs derived from the
Barabási A.-L. +5 more
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Competitive Lotka-Volterra Population Dynamics with Jumps [PDF]
, 2011 This paper considers competitive Lotka-Volterra population dynamics with jumps. The contributions of this paper are as follows. (a) We show stochastic differential equation (SDE) with jumps associated with the model has a unique global positive solution;
Applebaum +26 more
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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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Why Do Herbivorous Mites Suppress Plant Defenses?
Frontiers in Plant Science, 2018 Plants have evolved numerous defensive traits that enable them to resist herbivores. In turn, this resistance has selected for herbivores that can cope with defenses by either avoiding, resisting or suppressing them. Several species of herbivorous mites,
C. Joséphine H. Blaazer +6 more
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Tetranychus evansi spider mite populations suppress tomato defenses to varying degrees
Ecology and Evolution, 2020 Plant defense suppression is an offensive strategy of herbivores, in which they manipulate plant physiological processes to increase their performance. Paradoxically, defense suppression does not always benefit the defense‐suppressing herbivores, because
Bram Knegt +4 more
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