Results 161 to 170 of about 115,159 (298)

Active commuting to school : how far is too far? [PDF]

open access: yes, 2008
Walking and cycling to school provide a convenient opportunity to incorporate physical activity into an adolescent's daily routine. School proximity to residential homes has been identified as an important determinant of active commuting among children ...
Foley, Eimear   +4 more
core  

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

An Integrated Numerical and Bollard Pull Evaluation Approach for Early‐Stage Resistance and Thrust Assessment of a Small Craft

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Early‐stage hydrodynamic assessment of slender multihull vessels is challenged by limited geometric maturity, uncertain propulsion integration, and strong sensitivity to operating conditions. Under such constraints, reliance on a single analytical or numerical method may lead to misleading design decisions due to oversimplification or ...
Chairat Napasaksri   +4 more
wiley   +1 more source

Study Protocol for a Pilot Randomized Controlled Trial of a Brief, Virtual Exposure‐Based Intervention for Perinatal Posttraumatic Stress Disorder

open access: yesResearch in Nursing &Health, EarlyView.
ABSTRACT Perinatal posttraumatic stress disorder (PPTSD) is a public health concern with serious implications for maternal and infant health outcomes. However, clinical research for PPTSD treatment is minimal. Thus, we aim to help address this gap by evaluating the feasibility, acceptability, and preliminary effectiveness of a tailored PPTSD ...
Michelle L. Miller   +4 more
wiley   +1 more source

Area‐restricted search under realistic constraints

open access: yesOikos, EarlyView.
Abstract Area‐restricted search (ARS) is one of the most influential and widely used concepts in foraging theory, capturing a simple rule by which animals intensify local search following a resource encounter. Because ARS performs well in many spatially structured environments, it serves as a basic model for interpreting movement patterns across taxa ...
Inon Scharf, Arik Dorfman
wiley   +1 more source

Common Fixed Point Theorems for a Finite Family of Discontinuous and Noncommutative Maps

open access: yesFixed Point Theory and Applications, 2011
We study common fixed point theorems for a finite family of discontinuous and noncommutative single-valued functions defined in complete metric spaces.
Lin Lai-Jiu, Wang Sung-Yu
doaj  

Stabilising Routines in Complex Emergencies: How Basic Service Continuity Shapes Perceived Security

open access: yesPublic Administration and Development, EarlyView.
ABSTRACT This study examines how locally embedded actors describe the relationship between basic service continuity and perceived security in complex emergencies, with particular attention to the stabilisation of everyday routines. Using Proximity‐Predictability‐Attributability (PPA) as an analytic lens, we trace how interviewees relate access to water,
Abdullah Gökhan Yaşa, Orçun İmga
wiley   +1 more source

Multi‐scale flow analysis for scale‐aware urban canopy models

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We found that scale‐aware models are necessary when numerical weather prediction models approach hectometric resolution, which is associated with a characteristic length‐scale of morphological heterogeneity. This morphology‐dependent length‐scale indicates that resolved and unresolved heterogeneity are equally important.
Jingzi Huang, Maarten van Reeuwijk
wiley   +1 more source

Lithium Niobate Electro-Optic Photonic Processor for Variational Quantum Eigensolver. [PDF]

open access: yesAdv Sci (Weinh)
Lee J   +11 more
europepmc   +1 more source

Sliding Motions on Non‐Euclidean State Spaces: A Differential‐Geometric Perspective

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper extends sliding‐mode control theory to nonlinear systems evolving on smooth manifolds. Building on differential geometric methods, we reformulate Filippov's notion of solutions, characterize well‐defined vector fields on quotient spaces, and provide a consistent geometric definition of higher‐order sliding modes.
Fernando Castaños
wiley   +1 more source

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