Results 151 to 160 of about 77,620 (283)

A path‐based two‐commodity flow model and a branch‐price‐and‐cut algorithm for the inventory routing problem with time windows

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract We study an inventory routing problem with time windows (IRPTW). A single supplier serves a set of customers to fulfill their demand throughout a planning horizon. Each customer can be visited only within designated time windows, assuming each customer provides a single delivery time window valid for all periods.
Sara Charaf   +5 more
wiley   +1 more source

The application of machine learning models to optimal TSP tour length estimation

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract The traveling salesman problem (TSP) is a well‐known NP‐hard problem in combinatorial optimization, with numerous applications in logistics and elsewhere. This paper introduces a machine learning‐based approach to estimate the optimal tour length of the TSP, using linear regression, random forests (RF), and neural networks, including ...
Shuhan Kou, Bruce Golden, Luca Bertazzi
wiley   +1 more source

The effects of anodization and instrumentation on titanium abutment surface characteristics and biofilm formation

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To assess the impact of anodization and instrumentation on titanium abutment surface characteristics (surface roughness and wettability) and biofilm formation (viability and mass). Materials and Methods Titanium discs were obtained from pre‐milled abutment blanks made of titanium‐6aluminum‐7niobium alloy.
Weiqing Liu   +4 more
wiley   +1 more source

Four Haylages, One Metabonome: Defining Diet Driven Metabolic Shifts in Ponies

open access: yesJournal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Haylage is widely fed to all categories of stabled horses across Europe and New Zealand. Haylage can vary from high energy nutrient dense forage to low energy highly fibrous fodder, yet little is known about the impact different haylages have on metabolism in horses.
Meriel Moore‐Colyer   +2 more
wiley   +1 more source

Stem Cells From Dental Pulp, Periodontal Tissues, and Other Oral Sources: Biological Concepts and Regenerative Potential

open access: yesJournal of Periodontal Research, EarlyView.
A graphical abstract recapping the different sources of dental, periodontal, and other oral‐derived mesenchymal stromal cells (MSCs) and their regenerative mechanisms and potentials. The review's article findings bridge fundamental biological science with translational advances, highlighting the significance of MSCs in craniofacial regenerative ...
Karim M. Fawzy El‐Sayed   +6 more
wiley   +1 more source

Psychophysical changes after total sleep deprivation and experimental muscle pain

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep disturbances exacerbate chronic pain, increase psychological load, and increase inflammation. Delayed onset muscle soreness (DOMS) mimics aspects of chronic pain, predominantly affecting peripheral pain mechanisms, while experimental sleep provocations have been shown to impact central pain mechanisms.
Emma Hertel   +5 more
wiley   +1 more source

Approximating Graphic Multi-Path TSP and Graphic Ordered TSP

open access: yes
17 pages, 2 figures, 1 linear program, 3 ...
Morteza Alimi   +4 more
openaire   +4 more sources

Sodium Oxybate Alters Sleep Architecture and Reduces Emotional Selectivity in Memory‐Related Responses

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Sleep supports memory consolidation. Non‐rapid eye movement (NREM) and rapid eye movement (REM) sleep have been proposed to support, respectively, declarative memory consolidation and the integration of the memory affective dimension. Here, we used sodium oxybate (SXB) to modify the NREM/REM proportion during one sleep night and assessed ...
Laure Colin   +7 more
wiley   +1 more source

Polynomially searchable exponential neighbourhoods for sequencing problems in combinatorial optimisation

open access: yes, 2000
In this thesis, we study neighbourhoods of exponential size that can be searched in polynomial time. Such neighbourhoods are used in local search algorithms for classes of combinatorial optimisation problems.
Congram, Richard K., Congram, R.K.
core   +1 more source

Plant genetic and root‐associated microbial diversity modulate Lactuca sativa responsiveness to a soil inoculum under phosphate deficiency

open access: yesNew Phytologist, EarlyView.
Leaf phosphate and shoot biomass variation in response to the microbial consortium. Summary Microbial‐based approaches offer a promising strategy to decrease the use of chemical fertilizers in agriculture. Among them, arbuscular mycorrhizal fungi (AMF), which extend root surface area and enhance phosphate uptake, and phosphate‐solubilizing bacteria ...
Arianna Capparotto   +11 more
wiley   +1 more source

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