Results 91 to 100 of about 15,352,997 (261)

Markov‐Associated Quadratic Stochastic Families and the Susceptible‐Infected‐Recovered (SIR) Model

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We introduce a Markov‐associated construction for quadratic stochastic families generated by a symmetric cubic stochastic matrix and a finite‐state homogeneous Markov semigroup. The constructed family is not assumed to be a classical quadratic stochastic process of type (A)$$ (A) $$ or type (B)$$ (B) $$; rather, it is a Markov‐associated ...
Taimun Qaisar   +3 more
wiley   +1 more source

The Complexity of Optimizing over a Simplex, Hypercube or Sphere: A Short Survey [PDF]

open access: yes
We consider the computational complexity of optimizing various classes of continuous functions over a simplex, hypercube or sphere.These relatively simple optimization problems have many applications.We review known approximation results as well as ...
Klerk, E. de
core  

Common‐garden experimental evaluation of phylogenetic and functional diversity as drivers of plant performance

open access: yesOikos, EarlyView.
Biodiversity is known to influence the performance of coexisting species and has been proposed as a management tool to enhance the resilience and functioning of plant communities under drought. However, experimental studies to disentangle the roles of phylogenetic and functional diversity as drivers of plant performance remain extremely scarce.
Arantzazu L. Luzuriaga   +3 more
wiley   +1 more source

Structural models of genome-wide covariance identify multiple common dimensions in autism

open access: yesNature Communications
Common genetic variation has been associated with multiple phenotypic features in Autism Spectrum Disorder (ASD). However, our knowledge of shared genetic factor structures contributing to this highly heterogeneous phenotypic spectrum is limited.
Lucía de Hoyos   +11 more
doaj   +1 more source

A Case Study to Monitor Parallel‐Connected Ni–Cd Batteries on EMU Trains Through Compositional Data Control Charts

open access: yesQuality and Reliability Engineering International, EarlyView.
ABSTRACT Electric multiple unit (EMU) trains, widely used in modern railway transportation, use Nickel–Cadmium (Ni–Cd) batteries to power auxiliary systems on board, including lighting, ventilation, control electronics, and emergency systems. These batteries are often connected in parallel to ensure a wider power supply range for electrical loads that ...
Christian Capezza   +4 more
wiley   +1 more source

M3RS: Multi‐Robot, Multi‐Objective, and Multi‐Mode Routing and Scheduling

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Task execution quality significantly impacts multi‐robot missions, yet existing task allocation frameworks rarely consider quality of service as a decision variable, despite its importance in applications like robotic disinfection and cleaning. We introduce the multi‐robot, multi‐objective, and multi‐mode routing and scheduling (M3RS) problem,
Ishaan Mehta   +3 more
wiley   +1 more source

Equal before time: on the sensory suspension of accumulated time in Sichuan, China Égaux devant le temps : suspension sensorielle du temps accumulé au Sichuan (Chine)

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Food and alcohol indulgence, along with tea‐drinking, gambling, and gossip, are integral to a characteristically Sichuanese ethos of ‘life enjoyment’ (xiangshou shenghuo). Beyond mere pleasure, sensory, ludic, and comic experiences temporarily strip participants of both their formal and subjective qualities.
Angel Nayden
wiley   +1 more source

Hypernetworks Reveal Compound Variables That Capture Cooperative and Competitive Interactions in a Soccer Match

open access: yesFrontiers in Psychology, 2017
The combination of sports sciences theorization and social networks analysis (SNA) has offered useful new insights for addressing team behavior. However, SNA typically represents the dynamics of team behavior during a match in dyadic interactions and in ...
João Ramos   +5 more
doaj   +1 more source

Return of the MAC, the Columbia model: Full‐scale crime intervention and public perceptions of police presence

open access: yesCriminology &Public Policy, EarlyView.
Abstract Research Summary In the summer of 2025, the Columbia (SC) Police Department (CPD) implemented a full‐scale crime intervention in the Millwood Avenue Corridor (MAC), a historically high‐crime neighborhood. The intervention consisted of random high‐visibility patrols on 10 high‐crime streets during high‐crime times, increased LED lighting ...
Hunter M. Boehme   +4 more
wiley   +1 more source

Trade‐offs When Promoting Sustainability: Changing Attitudes or Changing Behaviour? Arbitrages dans la promotion de la durabilité : changer les mentalités ou changer les comportements? Abwägungen bei der Förderung von Nachhaltigkeit – ist es ein Einstellungswandel oder eine Verhaltensänderung, die erforderlich ist?

open access: yesEuroChoices, EarlyView.
Summary Many appeals to farmers to adopt sustainable practices are currently relying on pressure factors that may be inducing green and yet unsustainable behaviour. Different trade‐offs are involved in this transition but are normally overlooked.
Felipe Aguiar‐Noury   +2 more
wiley   +1 more source

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