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Routing Symmetric Demands in Directed Minor-Free Graphs with Constant Congestion [PDF]

open access: yes, 2019
The problem of routing in graphs using node-disjoint paths has received a lot of attention and a polylogarithmic approximation algorithm with constant congestion is known for undirected graphs [Chuzhoy and Li 2016] and [Chekuri and Ene 2013].
Carpenter, Timothy   +2 more
core   +1 more source

Identification and evaluation of congestion in two-stage network data envelopment analysis [PDF]

open access: yesInternational Journal of Research in Industrial Engineering, 2023
Congestion is one of the important concepts in data envelopment analysis that occurs when excessive inputs reduce the maximally possible outputs. Identification and elimination of congestion have a significant impact on reducing inputs along with ...
Sarvar Kassaei   +4 more
doaj   +1 more source

Migration with local public goods and the gains from changing places [PDF]

open access: yes, 2008
Without public goods and under fairly standard assumptions, in Hammond and Sempere (J Pub Econ Theory, 8: 145–170, 2006) we show that freeing migration enhances the potential Pareto gains from free trade.
A. Mas-Colell   +11 more
core   +4 more sources

Contemporary Perspectives on Congestion in Heart Failure: Bridging Classic Signs with Evolving Diagnostic and Therapeutic Strategies

open access: yesDiagnostics
Congestion represents a defining hallmark of heart failure (HF) leading to increased morbidity and mortality in HF patients. While it was traditionally viewed as a simple and uniform state of volume overload, contemporary understanding has emphasized its
Mihai Grigore   +7 more
doaj   +1 more source

The perceptions and satisfaction index of Yogyakarta’s citizens on congestion and air pollution

open access: yesJurnal Ekonomi & Studi Pembangunan, 2023
Yogyakarta City is one of Indonesia's most popular tourist destinations. The tourism sector is the highest tax revenue for local government. Besides, tourism gives high revenue but also negatively impacts the citizens as hosts, such as congestion and ...
Putri Wulan Ristanti, Suryanto Suryanto
doaj   +1 more source

Timing of decongestion and its impact on acute heart failure prognosis

open access: yesArchives of Medical Science, 2023
Introduction The risk of unfavourable outcomes after an acute heart failure (AHF) episode remains high. Effective decongestion, reflected by haemoconcentration (HC), may guide therapy. Optimal timing of HC remains unspecified.
Aneta Kosiorek   +4 more
doaj   +1 more source

Portal Vein Pulsatility: A Valuable Approach for Monitoring Venous Congestion and Prognostic Evaluation in Acute Decompensated Heart Failure

open access: yesDiagnostics
Background: The severity of systemic congestion is associated with increased portal vein flow pulsatility (PVP). Aim: To determine the usefulness of PVP as a marker of decongestion and prognosis in acute decompensated heart failure (ADHF) patients ...
Mihai Grigore   +2 more
doaj   +1 more source

Performance metrics in OFDM wireless networks supporting quasi-random traffic [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
We consider the downlink of an orthogonal frequency division multiplexing (OFDM) based cell that accommodates calls from different service-classes with different resource requirements.
P. Panagoulias   +4 more
doaj   +1 more source

End-to-End Algebraic Network Coding for Wireless TCP/IP Networks [PDF]

open access: yes, 2010
The Transmission Control Protocol (TCP) was designed to provide reliable transport services in wired networks. In such networks, packet losses mainly occur due to congestion.
Mao, Tong   +3 more
core   +5 more sources

Forecasting travel time reliability in urban road transpo [PDF]

open access: yesArchives of Transport, 2017
Assessment of travel time reliability as a fundamental factor in travel behaviour has become a very important aspect in both transport modelling and economic appraisal. Improved reliability could provide a significant economic benefit if it is adequately
Mattias Juhász   +2 more
doaj   +1 more source

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