Results 101 to 110 of about 133,301 (317)
Stochastic User Equilibrium Assignment in Schedule-Based Transit Networks with Capacity Constraints
Discrete Dynamics in Nature and Society, 2012 This paper proposes a stochastic user equilibrium (SUE) assignment model for a schedule-based transit network with capacity constraint. We consider a situation in which passengers do not have the full knowledge about the condition of the network and ...
Wangtu Xu, Lixin Miao, Wei-Hua Lin
doaj +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source
Transit Costs and Cost Efficiency: Bootstrapping Nonparametric Frontiers. [PDF]
This paper explores a selection of recently proposed bootstrapping techniques to estimate non-parametric convex (DEA) cost frontiers and efficiency scores for transit firms.
Kristiaan Kerstens +2 more
core
A bathtub model of transit congestion [PDF]
Studies of transit dwell times suggest that the delay caused by passengers boarding and alighting rises with the number of passengers on each vehicle.
Pandey, Ayush, Lehe, Lewis J.
core +1 more source
Urban ScienceIdentifying area functions around urban rail transit (URT) stations is crucial for optimizing urban planning and infrastructure allocation. Traditional methods relying on static land-use data fail to capture dynamic human–environment interactions, while ...
Siyang Liu +4 more
doaj +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Optimizing Transit Network Departure Frequency considering Congestion Effects
Journal of Advanced TransportationThis paper introduces a bilevel programming model for optimizing transit network departure frequency. In the upper-level model, user satisfaction is reflected by considering congestion effects in the cost function.
Wei Tan +5 more
doaj +1 more source
Promet (Zagreb)Recently, rail transit stations have been actively integrated with the surrounding business environment in the pre-design stage, showing scale, diversity and integration.
Yimeng ZHAO, Haishan XIA, Ran XU
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Developing an Extenics-Based Model for Evaluating Bus Transit System
Journal of Advanced Transportation, 2020 Evaluating bus transit performance periodically is a key step to improve service quality and system efficiency. An extenics-based model is developed with the real-world data. The performance indices employed for the evaluation are identified.
Yufeng Liu +4 more
doaj +1 more source