Results 31 to 40 of about 2,079,774 (295)

On the Validity of Neural Mass Models

open access: yesFrontiers in Computational Neuroscience, 2021
Modeling the dynamics of neural masses is a common approach in the study of neural populations. Various models have been proven useful to describe a plenitude of empirical observations including self-sustained local oscillations and patterns of distant ...
Nicolás Deschle   +6 more
doaj   +1 more source

On a generalized population dynamics equation with environmental noise [PDF]

open access: yesStatistics & Probability Letters, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rongrong Tian, Jinlong Wei, Jiang-Lun Wu
openaire   +4 more sources

Viability of Pentadesma in reduced habitat ecosystems within two climatic regions with fruit harvesting

open access: yesJournal of Biological Dynamics, 2022
Habitat loss and harvesting of non-timber forest products (NTFPs) significantly affect the population dynamics. In this paper, we propose a general mathematical modelling approach incorporating the impact of habitat size reduction and non-lethal ...
Maria C. A. Leite   +4 more
doaj   +1 more source

Border Collision Bifurcations in a Generalized Model of Population Dynamics [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2016
We analyze the dynamics of a generalized discrete time population model of a two‐stage species with recruitment and capture. This generalization, which is inspired by other approaches and real data that one can find in literature, consists in considering no restriction for the value of the two key parameters appearing in the model, that is, the natural
Ladino, L.   +3 more
openaire   +4 more sources

Impact Assessments of Transgenic cry1Ab Rice on the Population Dynamics of Five Non-Target Thrips Species and Their General Predatory Flower Bug in Bt and Non-Bt Rice Fields Using Color Sticky Card Traps

open access: yesJournal of Integrative Agriculture, 2013
A 2-yr field study was conducted to assess the effects of transgenic japonica rice (KMD1 and KMD2) with a synthetic cry1Ab gene from Bacillus thuingiensis Berliner on population dynamics and seasonal average densities of five thrips species including ...
Akhtar Zunnu Raen   +6 more
doaj   +1 more source

Construction of Reducible Stochastic Differential Equation Systems for Tree Height–Diameter Connections

open access: yesMathematics, 2020
This study proposes a general bivariate stochastic differential equation model of population growth which includes random forces governing the dynamics of the bivariate distribution of size variables.
Martynas Narmontas   +2 more
doaj   +1 more source

Detection of Mental Fatigue in the General Population: Feasibility Study of Keystroke Dynamics as a Real-world Biomarker

open access: yesJMIR Biomedical Engineering, 2022
BackgroundMental fatigue is a common and potentially debilitating state that can affect individuals’ health and quality of life.
Alejandro Acien   +5 more
doaj   +1 more source

Density regulation amplifies environmentally induced population fluctuations [PDF]

open access: yesPeerJ, 2023
Background Density-dependent regulation is ubiquitous in population dynamics, and its potential interaction with environmental stochasticity complicates the characterization of the random component of population dynamics. Yet, this issue has not received
Crispin M. Mutshinda   +3 more
doaj   +2 more sources

Dualities in population genetics: a fresh look with new dualities [PDF]

open access: yes, 2014
We apply our general method of duality, introduced in [Giardina', Kurchan, Redig, J. Math. Phys. 48, 033301 (2007)], to models of population dynamics.
Carinci, Gioia   +3 more
core   +2 more sources

The Dynamics of Specialization and Generalization within Biological Populations

open access: yesAdvances in Complex Systems, 1998
We develop an abstract model to explore specialization and generalization in task performance by individuals within biological populations. Individuals follow simple rules of increasing and decreasing task propensities that could, for example, be based on learning and forgetting.
Spencer, AJ, Couzin, ID, Franks, NR
openaire   +3 more sources

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