Results 51 to 60 of about 2,891,099 (365)

Annealing schedule from population dynamics

, 1999
We introduce a dynamical annealing schedule for population-based optimization algorithms with mutation. On the basis of a statistical mechanics formulation of the population dynamics, the mutation rate adapts to a value maximizing expected rewards at ...
A. Prügel-Bennett, A. Prügel-Bennett, D. B. Fogel, E. Aarts, F. Starrost, I. Rechenberg, J. H. Holland, J. L. Shapiro, L. M. Rattray, M. Mitchell, P. Stadler, P. Sutton, S. Bornholdt, S. Kauffman, S. Kauffman, Stefan Bornholdt   +15 more
core   +1 more source

Dendritic cells steering antigen and leukocyte traffic in lymph nodes

FEBS Letters, EarlyView.
Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta, Agnieszka Katarzyna Maciola, Tania Baccega, Giulia Pasqual   +3 more
wiley   +1 more source

Life history predicts global population responses to the weather in terrestrial mammals

eLife, 2022
With the looming threat of abrupt ecological disruption due to a changing climate, predicting which species are most vulnerable to environmental change is critical.
John Jackson, Christie Le Coeur, Owen Jones   +2 more
doaj   +1 more source

Population dynamics in compressible flows

, 2012
Organisms often grow, migrate and compete in liquid environments, as well as on solid surfaces. However, relatively little is known about what happens when competing species are mixed and compressed by fluid turbulence.
A. Kolmogorov, A. Kolmogorov, A. Kurganov, A. Martin, A.P. Martin, A.R. Robinson, A.R. Robinson, C. Torney, D. R. Nelson, D.R. Nelson, F. D’Ovidio, F. Peters, F. Toschi, F. Toschi, G. Boffetta, G. Boffetta, G. Falkovich, I.M. Held, J. Bec, J. Bec, J. Bec, J. ichi Wakita, J. Mannik, J.R. Cressman, K. Korolev, K. Mizobota, K.A. Dahmen, L. Biferale, L. Thomas, M. H. Jensen, M. Kimura, N.M. Shnerb, O. Hallatschek, O. Hallatschek, O. Hallatschek, P. Klein, P. Klein, P. Perlekar, P. Perlekar, R. Benzi, R. Benzi, R. Benzi, R. Fisher, S. Berti, S. Pigolotti, T. Neicu, T. Tel, W. McKiver, W. Saarloos van, W.J. McKiver, W.M. Durham, X. Capet   +51 more
core   +1 more source

Synchronization and Stability in Noisy Population Dynamics [PDF]

, 2008
We study the stability and synchronization of predator-prey populations subjected to noise. The system is described by patches of local populations coupled by migration and predation over a neighborhood.
A. Hastings, A. J. Lotka, D. D. Donalson, J. D. Murray, M. A. M. de Aguiar, R. V. Solé, Sabrina B. L. Araujo, V. Volterra   +7 more
core   +2 more sources

The dual nature of TDC – bridging dendritic and T cells in immunity

FEBS Letters, EarlyView.
TDC are hematopoietic cells combining dendritic and T cell features. They reach secondary lymphoid organs (SLOs) and peripheral organs (liver and lungs) after FLT3‐dependent development in the bone marrow and maturation in the thymus. TDC are activated and enriched in SLOs upon viral infection, suggesting that they might play unique immune roles, since
Maria Nelli, Mirela Kuka
wiley   +1 more source

Sociodemographic and lifestyle correlates of exclusive breastfeeding practices among mothers on antiretroviral therapy in the Eastern Cape, South Africa

International Breastfeeding Journal, 2021
Background Exclusive breastfeeding (EBF) is associated with a reduction of postnatal HIV transmission and optimal infant growth. Given that the factors influencing exclusive breastfeeding are multi-factorial and context-specific, we examined the ...
Daniel Ter Goon, Anthony Idowu Ajayi, Oladele Vincent Adeniyi   +2 more
doaj   +1 more source

Lagrangian Formalism in Biology: I. Standard Lagrangians and their Role in Population Dynamics [PDF]

arXiv, 2022
The Lagrangian formalism is developed for the population dynamics of interacting species that are described by several well-known models. The formalism is based on standard Lagrangians, which represent differences between the physical kinetic and potential energy-like terms.
arxiv  

Immigration-extinction dynamics of stochastic populations [PDF]

Phys. Rev. E 88, 012124 (2013), 2013
How high should be the rate of immigration into a stochastic population in order to significantly reduce the probability of observing the population extinct? Is there any relation between the population size distributions with and without immigration?
arxiv   +1 more source

Incidence rates in dynamic populations [PDF]

International Journal of Epidemiology, 2012
The purpose of the present article is to explain the calculation of incidence rates in dynamic populations with the use of simple mathematical and statistical concepts. The first part will consider incidence rates in dynamic populations, and how they can best be taught in basic, intermediate and advanced courses.
Vandenbroucke, J.P., Pearce, N.
openaire   +5 more sources