Results 31 to 40 of about 452,511 (216)

Mapping Population Dynamics at Local Scales Using Spatial Networks

Complexity, 2021
Nowadays, around half of the global population lives in urban areas. This rate is expected to increase up to two-thirds by the year 2050. Most studies analyze urban dynamics in wide geographic ranges, focusing mainly on cities.
José Balsa-Barreiro, Alfredo J. Morales, Rubén C. Lois-González   +2 more
doaj   +1 more source

Learnt dynamics generalizes across tasks, datasets, and populations

CoRR, 2019
Differentiating multivariate dynamic signals is a difficult learning problem as the feature space may be large yet often only a few training examples are available. Traditional approaches to this problem either proceed from handcrafted features or require large datasets to combat the m >> n problem.
Usman Mahmood, Md Mahfuzur Rahman, Alex Fedorov, Zening Fu, Vince D. Calhoun, Sergey M. Plis   +5 more
openaire   +2 more sources

Does specification matter? Experiments with simple multiregional probabilistic population projections [PDF]

, 2011
Population projection models that introduce uncertainty are a growing subset of projection models in general. In this paper we focus on the importance of decisions made with regard to the model specifications adopted.
Guy J. Abel, Raymer, James, Rogers, Andrei, Andrei Rogers, Abel, Guy J., James Raymer   +5 more
core   +1 more source

On the Validity of Neural Mass Models

Frontiers 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, Nicolás Deschle, Juan Ignacio Gossn, Prejaas Tewarie, Prejaas Tewarie, Björn Schelter, Andreas Daffertshofer   +6 more
doaj   +1 more source

A new method for identifying rapid decline dynamics in wild vertebrate populations [PDF]

, 2013
Tracking trends in the abundance of wildlife populations is a sensitive method for assessing biodiversity change due to the short time-lag between human pressures and corresponding shifts in population trends.
Collen, B, Ben Collen, Mace, Georgina M., Fonzo, MD, Georgina M. Mace, Collen, Ben, Di Fonzo, Martina, Martina Di Fonzo, Mace, GM   +8 more
core   +1 more source

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

JMIR Biomedical Engineering, 2022
BackgroundMental fatigue is a common and potentially debilitating state that can affect individuals’ health and quality of life.
Alejandro Acien, Aythami Morales, Ruben Vera-Rodriguez, Julian Fierrez, Ijah Mondesire-Crump, Teresa Arroyo-Gallego   +5 more
doaj   +1 more source

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

Journal 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, Gong-yin YE, Zeng-bin LU, Xue CHANG, Xiao-jing SHEN, Yu-fa PENG, Cui HU   +6 more
doaj   +1 more source

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

Mathematics, 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, Petras Rupšys, Edmundas Petrauskas   +2 more
doaj   +1 more source

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

Journal 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, Benito Chen-Charpentier, Folashade B. Agusto, Orou G. Gaoue, Natali Hritonenko   +4 more
doaj   +1 more source

Density regulation amplifies environmentally induced population fluctuations [PDF]

PeerJ, 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, Aditya Mishra, Zoe V. Finkel, Andrew J. Irwin   +3 more
doaj   +2 more sources