Results 31 to 40 of about 530,557 (235)

Spatial analyses of wildlife contact networks [PDF]

Journal of The Royal Society Interface, 2015
Datasets from which wildlife contact networks of epidemiological importance can be inferred are becoming increasingly common. A largely unexplored facet of these data is finding evidence of spatial constraints on who has contact with whom, despite theoretical epidemiologists having long realized spatial constraints can play a critical role in ...
Davis, Stephen, Abbasi, Babak, Shah, Shrupa, Telfer, Sandra, Begon, Mike   +4 more
openaire   +3 more sources

Prediction of hospital-onset COVID-19 using networks of patient contact: an observational study

International Journal of Infectious Diseases, 2022
Purpose: Predicting healthcare-acquired infections (HAIs) has the potential to revolutionise the prevention and control of transmissible infections.
A. Myall, J. Price, R. Peach, M. Abbas, S. Mookerjee, I. Ahmad, D. Ming, N.J. Zhu, F. Ramzan, A. Weisse, A.H. Holmes, M. Barahona   +11 more
doaj   +1 more source

Multifractal characterization of protein contact networks [PDF]

Physica A: Statistical Mechanics and its Applications, 2015
The multifractal detrended fluctuation analysis of time series is able to reveal the presence of long-range correlations and, at the same time, to characterize the self-similarity of the series. The rich information derivable from the characteristic exponents and the multifractal spectrum can be further analyzed to discover important insights about the
Enrico Maiorino, Lorenzo Livi, Alessandro Giuliani, Alireza Sadeghian, Antonello Rizzi   +4 more
openaire   +3 more sources

Determination of long-term permissible currents in wires of power supply systems of railways

Вестник Научно-исследовательского института железнодорожного транспорта, 2019
In the standard for contact wires made from copper and its alloys, the values of long-term permissible temperatures have significantly decreased. This requires recalculation of previously valid values of long-term permissible currents. Authors considered
E. P. FIGURNOV, Yu. I. ZHARKOV, V. I. KHARCHEVNIKOV   +2 more
doaj   +1 more source

Phylodynamics on local sexual contact networks [PDF]

PLOS Computational Biology, 2016
AbstractPhylodynamic models are widely used in infectious disease epidemiology to infer the dynamics and structure of pathogen populations. However, these models generally assume that individual hosts contact one another at random, ignoring the fact that many pathogens spread through highly structured contact networks.
Rasmussen, David A, Kouyos, Roger, Günthard, Huldrych F, Stadler, Tanja   +3 more
openaire   +6 more sources

Mitigation of epidemics in contact networks through optimal contact adaptation

Mathematical Biosciences and Engineering, 2013
This paper presents an optimal control problem formulation to minimize the total number of infection cases during the spread of susceptible-infected-recovered SIR epidemics in contact networks. In the new approach, contact weighted are reduced among nodes and a global minimum contact level is preserved in the network.
Youssef, M., Scoglio, C.
openaire   +4 more sources

Defining adequate contact for transmission of Mycobacterium tuberculosis in an African urban environment

BMC Public Health, 2020
Background The risk of infection from respiratory pathogens increases according to the contact rate between the infectious case and susceptible contact, but the definition of adequate contact for transmission is not standard.
María Eugenia Castellanos, Sarah Zalwango, Robert Kakaire, Mark H. Ebell, Kevin K. Dobbin, Juliet Sekandi, Noah Kiwanuka, Christopher C. Whalen   +7 more
doaj   +1 more source

Epidemic management and control through risk-dependent individual contact interventions.

PLoS Computational Biology, 2022
Testing, contact tracing, and isolation (TTI) is an epidemic management and control approach that is difficult to implement at scale because it relies on manual tracing of contacts. Exposure notification apps have been developed to digitally scale up TTI
Tapio Schneider, Oliver R A Dunbar, Jinlong Wu, Lucas Böttcher, Dmitry Burov, Alfredo Garbuno-Inigo, Gregory L Wagner, Sen Pei, Chiara Daraio, Raffaele Ferrari, Jeffrey Shaman   +10 more
doaj   +1 more source

Epidemic thresholds in dynamic contact networks [PDF]

Journal of The Royal Society Interface, 2008
The reproductive ratio,R0, is a fundamental quantity in epidemiology, which determines the initial increase in an infectious disease in a susceptible host population. In most epidemic models, there is a specific value ofR0, the epidemic threshold, above which epidemics are possible, but below which epidemics cannot occur.
Erik, Volz, Lauren Ancel, Meyers
openaire   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source