Results 11 to 20 of about 267,158 (314)

Supply Chain Risk Diffusion in Partially Mapping Double-Layer Hypernetworks

open access: yesEntropy, 2023
The impact of COVID-19 is global, and uncertain information will affect product quality and worker efficiency in the complex supply chain network, thus bringing risks.
Ping Yu   +3 more
doaj   +1 more source

A process of rumour scotching on finite populations [PDF]

open access: yesRoyal Society Open Science, 2015
Rumour spreading is a ubiquitous phenomenon in social and technological networks. Traditional models consider that the rumour is propagated by pairwise interactions between spreaders and ignorants.
Guilherme Ferraz de Arruda   +3 more
doaj   +1 more source

Impact of war on COVID-19 pandemic in Ukraine: the simulation study

open access: yesРадіоелектронні і комп'ютерні системи, 2022
The COVID-19 pandemic has posed a challenge to public health systems worldwide. As of March 2022, almost 500 million cases have been reported worldwide. More than 6.2 million people died.
Dmytro Chumachenko   +3 more
doaj   +1 more source

A dynamic microsimulation model for epidemics [PDF]

open access: yesSocial Science & Medicine, 2021
Funder: The Alan Turing ...
Fiona Spooner   +15 more
openaire   +4 more sources

Integrating stochasticity and network structure into an epidemic model [PDF]

open access: yes, 2009
While the foundations of modern epidemiology are based upon deterministic models with homogeneous mixing, it is being increasingly realized that both spatial structure and stochasticity play major roles in shaping epidemic dynamics.
Dangerfield, C. E.   +4 more
core   +1 more source

Modeling Vaccine Efficacy for COVID-19 Outbreak in New York City

open access: yesBiology, 2022
In this article we study the efficacy of vaccination in epidemiological reconstructions of COVID-19 epidemics from reported cases data. Given an epidemiological model, we developed in previous studies a method that allowed the computation of an ...
Jacques Demongeot   +3 more
doaj   +1 more source

Accuracy of models for the 2001 foot-and-mouth epidemic [PDF]

open access: yes, 2008
Since 2001 models of the spread of foot-and-mouth disease, supported by the data from the UK epidemic, have been expounded as some of the best examples of problem-driven epidemic models.
Bessell, Paul R.   +17 more
core   +1 more source

Networks and epidemic models [PDF]

open access: yesJournal of The Royal Society Interface, 2005
Networks and the epidemiology of directly transmitted infectious diseases are fundamentally linked. The foundations of epidemiology and early epidemiological models were based on population wide random-mixing, but in practice each individual has a finite set of contacts to whom they can pass infection; the ensemble of all such contacts forms a ‘mixing ...
Matt J, Keeling, Ken T D, Eames
openaire   +3 more sources

Predictive model of COVID-19 epidemic process based on neural network

open access: yesРадіоелектронні і комп'ютерні системи, 2022
The COVID-19 pandemic, which has been going on for almost three years, has shown that public health systems are not ready for such a challenge. Measures taken by governments in the healthcare sector in the context of a sharp increase in the pressure on ...
Serhii Krivtsov   +3 more
doaj   +1 more source

On a Discrete Epidemic Model [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2007
We investigate the global asymptotic behavior of solutions of the difference equationxn+1=(1−∑j=0k−1xn−j)(1−e−Axn),n∈ℕ0, whereA∈(0,∞),k∈{2,3,…}, and the initial valuesx−k+1,x−k+2,…,x0are arbitrary negative numbers. Asymptotics of some positive solutions of the equation are also found.
openaire   +2 more sources

Home - About - Disclaimer - Privacy