Results 41 to 50 of about 2,661,721 (287)

The eye contact effect: mechanisms and development [PDF]

open access: yes, 2009
The ‘eye contact effect’ is the phenomenon that perceived eye contact with another human face modulates certain aspects of the concurrent and/or immediately following cognitive processing.
Adolphs   +81 more
core   +2 more sources

Multifractal characterization of protein contact networks [PDF]

open access: yesPhysica 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   +4 more
openaire   +3 more sources

Phylodynamics on local sexual contact networks [PDF]

open access: yesPLOS 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   +3 more
openaire   +6 more sources

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

open access: yesBMC 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   +7 more
doaj   +1 more source

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

open access: yesPLoS 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   +10 more
doaj   +1 more source

Data on face-to-face contacts in an office building suggests a low-cost vaccination strategy based on community linkers

open access: yes, 2015
Empirical data on contacts between individuals in social contexts play an important role in providing information for models describing human behavior and how epidemics spread in populations. Here, we analyze data on face-to-face contacts collected in an
Barrat, Alain   +5 more
core   +3 more sources

Online Child Sex Solicitation: Exploring the Feasibility of a Research 'Sting' [PDF]

open access: yes, 2007
A small scale test of the integrity of Internet Web 2.0 social network sites was undertaken over several weeks in 2007. The fictional identities of four female underage children where posted on three network sites and later introduced to relay chat ...
Broadhurst, Roderic, Jayawardena, Kasun
core   +3 more sources

Mitigation of epidemics in contact networks through optimal contact adaptation

open access: yesMathematical 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

Network reachability of real-world contact sequences

open access: yes, 2004
We use real-world contact sequences, time-ordered lists of contacts from one person to another, to study how fast information or disease can spread across network of contacts. Specifically we measure the reachability time -- the average shortest time for
C. S. Riolo   +4 more
core   +3 more sources

Force chains and contact network topology in packings of elongated particles [PDF]

open access: yes, 2011
By means of contact dynamic simulations, we investigate the contact network topology and force chains in two-dimensional packings of elongated particles modeled by rounded-cap rectangles.
E. Azéma   +9 more
core   +3 more sources

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