Results 71 to 80 of about 2,716,785 (324)

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

A Departure Time Choice for Morning Commute Considering Train Capacity of a Rail Transit Line

open access: yesAdvances in Mechanical Engineering, 2013
Every commuter utilizing urban rail transit decides the departure time from home to a station according to individual judgment for the biggest possibility to board a train as soon as possible after the arrival.
Jia Feng   +4 more
doaj   +1 more source

Spatial Complex Network Analysis and Accessibility Indicators: the Case of Municipal Commuting in Sardinia, Italy [PDF]

open access: yes, 2011
In this paper a contribution is presented with respect to accessibility indicators modelling for commuters moving through the municipalities of Sardinia, in Italy.
Caschili, Simone   +2 more
core   +2 more sources

Estimation of Bimodal Urban Link Travel Time Distribution and Its Applications in Traffic Analysis

open access: yes, 2015
Vehicles travelling on urban streets are heavily influenced by traffic signal controls, pedestrian crossings, and conflicting traffic from cross streets, which would result in bimodal travel time distributions, with one mode corresponding to travels ...
Yuxiong Ji   +3 more
semanticscholar   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

An Agent Based Model for the Simulation of Transport Demand and Land Use [PDF]

open access: yes, 2015
Agent based modelling has emerged as a promising tool to provide planners with insights on social behaviour and the interdependencies characterising urban system, particularly with respect to transport and infrastructure planning.
Barthelemy, J.   +5 more
core  

E. coli "super-contaminates" narrow ducts fostered by broad run-time distribution [PDF]

open access: yes, 2019
One striking feature of bacterial motion is their ability to swim upstream along corners and crevices, by leveraging hydrodynamic interactions. This motion through anatomic ducts or medical devices might be at the origin of serious infections.
Altshuler, Ernesto   +5 more
core   +3 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Modelling travel time distribution under various uncertainties on Hanshin expressway of Japan

open access: yes, 2014
PurposeStudying travel time distribution or variability in travel time is very much useful in travel time reliability studies of transportation system.
Ravi Sekhar Chalumuri, A. Yasuo
semanticscholar   +1 more source

Sri Lanka Malaria Maps [PDF]

open access: yes, 2003
BACKGROUND: Despite a relatively good national case reporting system in Sri Lanka, detailed maps of malaria distribution have not been publicly available.
Amerasinghe, Felix P   +3 more
core   +3 more sources

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