Results 11 to 20 of about 15,482,403 (390)

Sample genealogies and genetic variation in populations of variable size [PDF]

open access: yesGenetics 186 (2010) 601, 2009
We consider neutral evolution of a large population subject to changes in its population size. For a population with a time-variable carrying capacity we have computed the distributions of the total branch lengths of its sample genealogies. Within the coalescent approximation we have obtained a general expression, Eq.
arxiv   +1 more source

On Gossip and Populations [PDF]

open access: yes, 2010
Gossip protocols are simple, robust and scalable and have been consistently applied to many (mostly wired) distributed systems. Nevertheless, most validation in this area has been so far empirical and there is a clear lack of a theoretical counterpart to characterize what can and cannot be computed with gossip protocols.
Bertier, Marin   +2 more
openaire   +5 more sources

Housing and populism [PDF]

open access: yesWest European Politics, 2019
The recent success of populist candidates in the UK and Continental Europe has sparked a major debate between those who view populism as a reaction of the economically ‘left behind’ and those who view it as a cultural ‘backlash’ by groups with declining social status, pointing to stark divisions between urban and rural areas, core and periphery.
Adler, D, Ansell, B
openaire   +3 more sources

Shape of population interfaces as an indicator of mutational instability in coexisting cell populations [PDF]

open access: yes, 2020
Cellular populations such as avascular tumors and microbial biofilms may "invade" or grow into surrounding populations. The invading population is often comprised of a heterogeneous mixture of cells with varying growth rates. The population may also exhibit mutational instabilities, such as a heavy deleterious mutation load in a cancerous growth.
arxiv   +1 more source

The PAT model of population dynamics [PDF]

open access: yesarXiv, 2021
We introduce a population-age-time (PAT) model which describes the temporal evolution of the population distribution in age. The surprising result is that the qualitative nature of the population distribution dynamics is robust with respect to the birth rate and death rate distributions in age, and initial conditions.
arxiv  

An impact analysis of population growth on energy‐water‐food‐land nexus for ecological sustainable development in Rwanda

open access: yesFood and Energy Security, 2020
While agricultural activities are a major drain on water resources in Rwanda, its high population growth continually escalates energy–water–food–land nexus pressures.
Katundu Imasiku, Etienne Ntagwirumugara
doaj   +1 more source

Education of values: Marketizing the aging population in urban China

open access: yesAnthropology & Aging, 2021
In this article, I examine some of the marketing and sales strategies at Gardenview, a newly established eldercare company that ran a few residential eldercare facilities in Nanjing, China.
Yifan Wang
doaj   +1 more source

Private Military Companies in Counterinsurgency: Discussion about Erik Prince´s Concepts

open access: yesObrana a Strategie, 2018
This text deals with the analysis of private military companies as an counterinsurgency actor in Afghanistan from the point of view of Erik Prince's proposal and application to the theory of David Kilcullen.
Dominik Plávka
doaj   +1 more source

Data-driven risk analysis of unmanned aircraft system operations considering spatiotemporal characteristics of population distribution [PDF]

open access: yesarXiv, 2022
One of the challenges of Unmanned Aircraft System (UAS) operations is to operate an unmanned aircraft with minimal risk to people on the ground. The purpose of this study is to define and measure such risks as population risk, by incorporating spatiotemporal changes in population density.
arxiv  

Emotional stress estimation in general population

open access: yesInternational Journal of Endorsing Health Science Research, 2014
Despite great deal of popular research interest in existence and altered body responses of emotional stress there are still strong arguments regarding its positive and negative impact on psychophysiological health.
Maria Altaf   +4 more
doaj   +1 more source

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