Results 21 to 30 of about 38,882 (145)

Analysis of Biased Competition and Cooperation for Attention in the Cerebral Cortex

Frontiers in Computational Neuroscience, 2019
A new approach to understanding the interaction between cortical areas is provided by a mathematical analysis of biased competition, which describes many interactions between cortical areas, including those involved in top-down attention.
Tatyana Turova, Tatyana Turova, Edmund T. Rolls, Edmund T. Rolls, Edmund T. Rolls   +4 more
doaj   +1 more source

QUANTIFYING INTERSPECIFIC COMPETITION BETWEEN CANCER AND NORMAL CELLS USING USING NONLINEAR MIXED EFFECTS AND ORDINARY DIFFERENTIAL EQUATION MODELING

Hematology, Transfusion and Cell Therapy
Introduction/Justification: Tumor growth has been widely studied through various methodologies. In mathematical oncology, researchers use ordinary differential equations (ODEs) to analyze tumor dynamics. These models present meaningful parameters to link
Letícia Fernanda Alves, Mauro César Cafundó Morais, João Frederico Costa Azevedo Meyer, Diego Samuel Rodrigues   +3 more
doaj   +1 more source

Normal tissue architecture determines the evolutionary course of cancer

Nature Communications, 2021
Some cancers occur in spatially constrained tissues such as the mammary gland, and how the morphological features influence the evolution of the cancer is unclear. Here, the authors use mathematical modeling to study the question of competition for space
Jeffrey West, Ryan O. Schenck, Chandler Gatenbee, Mark Robertson-Tessi, Alexander R. A. Anderson   +4 more
doaj   +1 more source

Suppression force-fields and diffuse competition: competition de-escalation is an evolutionarily stable strategy

Royal Society Open Science, 2023
Competition theory is founded on the premise that individuals benefit from harming their competitors, which helps them secure resources and prevent inhibition by neighbours.
Daniel Z. Atwater
doaj   +1 more source

Mathematical toy model inspired by the problem of the adaptive origins of the sexual orientation continuum [PDF]

Royal Society Open Science, 2016
Same-sex sexual behaviour is ubiquitous in the animal kingdom, but its adaptive origins remain a prominent puzzle. Here, I suggest the possibility that same-sex sexual behaviour arises as a consequence of the competition between an evolutionary drive for
Brian Skinner
doaj   +1 more source

Mathematical Analysis of a Size Structured Tree-Grass Competition Model for Savanna Ecosystems

Biomath, 2014
Several continuous-time tree-grass competition models have been developed to study conditions of long-lasting coexistence of trees and grass in savanna ecosystems according to environmental parameters such as climate or fire regime. In those models, fire
Valaire Yatat, Yves Dumont, Jean Jules Tewa, Pierre Couteron, Samuel Bowong   +4 more
doaj   +1 more source

A simple mathematical model for Batesian mimicry

Discrete Dynamics in Nature and Society, 2005
A simple mathematical model is presented for Batesian mimicry, which occurs when a harmless species (mimic) is morphologically similar to another species (model) that is noxious or distasteful to predators, thus gaining a measure of protection.
Terence R. Blows, Barry J. Wimmer
doaj   +1 more source

Data-driven interdisciplinary mathematical modelling quantitatively unveils competition dynamics of co-circulating influenza strains

Journal of Translational Medicine, 2017
Background Co-circulation of influenza strains is common to seasonal epidemics and pandemic emergence. Competition was considered involved in the vicissitudes of co-circulating influenza strains but never quantitatively studied at the human population ...
Bin-Shenq Ho, Kun-Mao Chao
doaj   +1 more source

Understanding MRSA clonal competition within a UK hospital; the possible importance of density dependence

Epidemics, 2021
Background: Methicillin resistant Staphylococcus aureus (MRSA) bacteria cause serious, often healthcare-associated infections and are frequently highly resistant to diverse antibiotics.
Anneke S. de Vos, Sake J. de Vlas, Jodi A. Lindsay, Mirjam E.E. Kretzschmar, Gwenan M. Knight   +4 more
doaj   +1 more source

Parts of the Whole: Moderating Competition in the World of Ideas

Numeracy, 2015
In both biological and mathematical dynamical systems, competition may be moderated by the presence of a top predator of both competing species. Applying this principle in memetics sheds light on why some strategies are more likely than others to promote
Dorothy Wallace
doaj   +1 more source