Results 41 to 50 of about 1,411,342 (269)

Effective reproduction number: Convexity, invariance and cordons sanitaires

, 2021
We consider the problem of optimal allocation strategies for a (perfect) vaccine in an infinite-metapopulation model (including SIS, SIR, SEIR,. . .), when the loss function is given by the effective reproduction number Re, which is defined as the spectral radius of the effective next generation matrix (in finite dimension) or more generally of the ...
Delmas, Jean-François, Dronnier, Dylan, Zitt, Pierre-André   +2 more
openaire   +2 more sources

Parallel trends in the transmission of SARS-CoV-2 and retail/recreation and public transport mobility during non-lockdown periods

International Journal of Infectious Diseases, 2021
Recent literature strongly supports the hypothesis that mobility restriction and social distancing play a crucial role in limiting the transmission of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2).
Bernard Cazelles, Catherine Comiskey, Benjamin Nguyen-Van-Yen, Clara Champagne, Benjamin Roche   +4 more
doaj   +1 more source

Experimental pig-to-pig transmission dynamics for African swine fever virus, Georgia 2007/1 strain [PDF]

, 2015
African swine fever virus (ASFV) continues to cause outbreaks in domestic pigs and wild boar in Eastern European countries. To gain insights into its transmission dynamics, we estimated the pig-to-pig basic reproduction number (R 0) for the Georgia 2007 ...
Burnham, C. GUINAT, D. U. PFEIFFER, Diekmann, J. L. GONZALES, Keeling, L. DIXON, McVicar, S. GUBBINS, T. VERGNE, Vynnycky   +10 more
core   +4 more sources

Estimating Effective Reproduction Number for SIR Compartmental Model: A Stochastic Evolutionary Approach

Journal of Social Computing, 2022
Compartmental pandemic models have become a significant tool in the battle against disease outbreaks. Despite this, pandemic models sometimes require extensive modification to accurately reflect the actual epidemic condition.
W. K. Wong, Filbert H. Juwono
doaj   +1 more source

Anarchy in the UK: Detailed genetic analysis of worker reproduction in a naturally occurring British anarchistic honeybee, Apis mellifera, colony using DNA microsatellites [PDF]

, 2002
Anarchistic behaviour is a very rare phenotype of honeybee colonies. In an anarchistic colony, many workers’ sons are reared in the presence of the queen. Anarchy has previously been described in only two Australian colonies.
Arnold G, Boomsma JJ, Bourke AFG, Bruford MW, Butler CG, Crozier RH, Estoup A, Estoup A, F. L. W. Ratnieks, Foster KR, Franck P, Miller DG, Montague CE, N. Chaline, Oldroyd BP, Page RE, Pamilo P, Robinson GE, Seeley TD, Sokal RR, Starr CK, Strassmann J, T. Burke, Trivers AK, Visscher PK, Winston ML   +25 more
core   +1 more source

Reflections on two years estimating effective reproduction numbers

, 2022
31 March, in just under a weeks time, will mark the last day we are producing global national and subnational Rt estimates and nowcasts at https://epiforecasts.io/covid/posts/global/ - more than 2 years after we published the first set of estimates. This is a good opportunity to reflect on what we have learned from this, what went well and what went ...
Sam Abbott, Sebastian Funk
openaire   +1 more source

Early phylogenetic estimate of the effective reproduction number of SARS‐CoV‐2 [PDF]

Journal of Medical Virology, 2020
Abstract To reconstruct the evolutionary dynamics of the 2019 novel‐coronavirus recently causing an outbreak in Wuhan, China, 52 SARS‐CoV‐2 genomes available on 4 February 2020 at Global Initiative on Sharing All Influenza Data were analyzed.
Lai A., Bergna A., Acciarri C., Galli M., Zehender G.   +4 more
openaire   +2 more sources

Quantifying the role of social distancing, personal protection and case detection in mitigating COVID-19 outbreak in Ontario, Canada

Journal of Mathematics in Industry, 2020
Public health interventions have been implemented to mitigate the spread of coronavirus disease 2019 (COVID-19) in Ontario, Canada; however, the quantification of their effectiveness remains to be done and is important to determine if some of the social ...
Jianhong Wu, Biao Tang, Nicola Luigi Bragazzi, Kyeongah Nah, Zachary McCarthy   +4 more
doaj   +1 more source

Effects of Demographic and Weather Parameters on COVID-19 Basic Reproduction Number [PDF]

Frontiers in Ecology and Evolution, 2021
It is hard to overstate the importance of a timely prediction of the COVID-19 pandemic progression. Yet, this is not possible without a comprehensive understanding of environmental factors that may affect the infection transmissibility. Studies addressing parameters that may influence COVID-19 progression relied on either the total numbers of detected ...
Igor Salom, Andjela Rodic, Ognjen Milicevic, Dusan Zigic, Magdalena Djordjevic, Marko Djordjevic   +5 more
openaire   +3 more sources

A Synthesis Approach for Reproducing the Response of Aircraft Panels to Turbulent Boundary Layer Excitations [PDF]

, 2010
Random wall-pressure fluctuations due to a Turbulent-Boundary Layer (TBL) are a feature of the air flow over an aircraft fuselage under cruise conditions, creating undesirable effects such as cabin noise annoyance.
Bravo María, Teresa, Maury, Cédric
core   +5 more sources