Results 41 to 50 of about 2,225,711 (233)

Aspectos psicosociales y accidentes en el transporte terrestre Psychosocial aspects and accidents in land transport

open access: yesRevista Peruana de Medicina Experimental y Salud Pública, 2010
Los accidentes de tránsito son un problema de salud pública en el Perú, que entre 1998 y 2008 causaron 35 596 muertes, Lima es la región más afectada con 61,7% de los siniestros, su costo anual alcanzó los mil millones de dólares, equivalente a un tercio
Nelson Morales-Soto   +2 more
doaj  

It's time to go—Drivers and plasticity of migration phenology in a short‐distance migratory ungulate

open access: yesJournal of Animal Ecology, Volume 94, Issue 6, Page 1204-1220, June 2025.
In thishis study, we reveal how vegetation phenology and snow dynamics drive the timing of migration in a short‐distance migratory ungulate inhabiting the Alps. Differences appeared between sexes, suggesting that female ibex could be constrained in their migration timing because of parturition, questioning the consequences of rapid climate change in ...
Victor Chauveau   +30 more
wiley   +1 more source

Directed Chaotic Transport in Hamiltonian Ratchets [PDF]

open access: yesPhys. Rev. E 71 (2005) 026228., 2004
We present a comprehensive account of directed transport in one-dimensional Hamiltonian systems with spatial and temporal periodicity. They can be considered as Hamiltonian ratchets in the sense that ensembles of particles can show directed ballistic transport in the absence of an average force. We discuss general conditions for such directed transport,
arxiv   +1 more source

Integrating local ecological knowledge into systematic conservation planning for seahorse conservation

open access: yesConservation Biology, Volume 39, Issue 3, June 2025.
Abstract Successful long‐term conservation relies on strategic planning for pragmatic actions to mitigate threats. Prioritizing actions and areas to support conservation goals in the most cost‐effective scenario becomes crucial in resource‐limited environments. However, planning and management can be challenging in data‐limited contexts.
Anna Karolina Martins Borges   +3 more
wiley   +1 more source

Comparison of transport map generated by heat flow interpolation and the optimal transport Brenier map [PDF]

open access: yes, 2017
This note shows that the non-expansive transport map constructed by Y.-H. Kim and E. Milman using heat flow interpolation is in general different from the optimal transport Brenier map.
arxiv   +1 more source

Worldwide Soundscapes: A Synthesis of Passive Acoustic Monitoring Across Realms

open access: yesGlobal Ecology and Biogeography, Volume 34, Issue 5, May 2025.
ABSTRACT Aim The urgency for remote, reliable and scalable biodiversity monitoring amidst mounting human pressures on ecosystems has sparked worldwide interest in Passive Acoustic Monitoring (PAM), which can track life underwater and on land. However, we lack a unified methodology to report this sampling effort and a comprehensive overview of PAM ...
Kevin F. A. Darras   +580 more
wiley   +1 more source

Molecular Electronics: electron, spin and thermal transport through molecules [PDF]

open access: yesarXiv, 2021
This review presents recent results on the physics of electron transport in molecular devices. The review is organized as follows. A brief description of molecular junction (MJ) technology is first given followed by an introduction to the basic physics of electron transport through MJs from DC to about 20 GHz.
arxiv  

Systematic Review of the Prevalence of Tinea Pedis in Children

open access: yesPediatric Dermatology, Volume 42, Issue 3, Page 539-551, May/June 2025.
ABSTRACT Background/Objectives Tinea pedis, commonly known as athlete's foot, is a fungal infection that affects the skin of the feet. While there is extensive research on the prevalence of tinea pedis in adults, data regarding prevalence in children are limited.
Joanna Elisabeth Bjerg Stenderup   +2 more
wiley   +1 more source

Short-axis-mode rotation in complex variables [PDF]

open access: yesarXiv, 2018
Decomposition of the free rigid body Hamiltonian into a "main problem" and a perturbation term provides an efficient integration scheme that avoids the use of elliptic functions and integrals. In the case of short-axis-mode rotation, it is shown that the use of complex variables converts the integration of the torque-free motion by perturbations into a
arxiv  

Highly controlled optical transport of cold atoms into a hollow-core fiber [PDF]

open access: yes, 2018
We report on an efficient and highly controlled cold atom hollow-core fiber interface, suitable for quantum simulation, information, and sensing. The main focus of this manuscript is a detailed study on transporting cold atoms into the fiber using an optical conveyor belt.
arxiv   +1 more source

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