Results 41 to 50 of about 654,115 (209)

Controles por retroalimentación de salida para el motor de inducción sin sensores mecánicos [PDF]

open access: yes, 2007
En este artículo se presentan dos controladores por retroalimentación de salida, usando un observador de velocidad que logra seguimiento exponencialmente global de la velocidad para el motor de inducción.
León Morales, Jesús de   +1 more
core  

Same, Same, but Different Effects: Why Did the Euro and EU Migration Crisis Lead to Different Integration Outcomes?

open access: yesRisk, Hazards &Crisis in Public Policy, Volume 16, Issue 4, December 2025.
ABSTRACT We live in a time of “permacrisis,” which has presented an unprecedented number of challenges to the EU (Riddervold et al. 2021, 4). We see that the impact of crises on EU integration differs from one case to the other. This gives rise to the following puzzle: why did a phenomenon that is described with the same “crisis” label lead to ...
Jan Hupkens
wiley   +1 more source

Slow media, desconexión digital y periodismo reposado. Un balance crítico de la primera década de investigación

open access: yesPalabra Clave
A una década de las primeras investigaciones, este artículo plantea un balance crítico de los hallazgos y debilidades del campo de estudios que aborda la relación entre comunicación y velocidad/lentitud, compuesto, entre otras subáreas, por: el ...
Alejandro Barranquero
doaj   +1 more source

Relationship between rate perceived exertion and anthropometric and physical changes in wheelchair basketball

open access: yesE-balonmano.com: Revista de Ciencias del Deporte, 2022
The objective of the study was to describe the association between the internal load and changes in anthropometric characteristics and physical condition during a pre-season a wheelchair basketball team (WB players).
Aitor Iturricastillo Urteaga   +3 more
doaj  

Factibilidad e interés de las relaciones transversales de alta velocidad en Europa [PDF]

open access: yes, 2006
En una primera etapa de la alta velocidad ferroviaria, el principal objetivo perseguido fue el de unir los principales núcleos de población en el menor tiempo posible, para que la oferta de transporte por ferrocarril fuese competitiva frente al modo ...
Aranda Mosqueda, Esther
core  

Assessing the Corn Belt as an anthropogenic barrier to migrating landbirds in the United States

open access: yesConservation Biology, Volume 39, Issue 5, October 2025.
Abstract Migrating landbirds adjust their flight and stopover behaviors to efficiently cross inhospitable geographies, such as the Gulf of Mexico and the Sahara Desert. In addition to these natural barriers, birds may increasingly encounter anthropogenic barriers created by large‐scale changes in land use. One such barrier could be the Corn Belt in the
Fengyi Guo   +7 more
wiley   +1 more source

Improvements for better scaling of locally managed marine areas

open access: yesConservation Biology, Volume 39, Issue 5, October 2025.
Abstract To protect and restore ecosystems at the speed and scale required to meet current environmental challenges, a greater understanding of how conservation initiatives spread from existing to new adopters is required. According to the diffusion of innovation theory, positive adopter‐to‐peer communication is a powerful driver of innovation spread ...
Emily Lewis‐Brown   +6 more
wiley   +1 more source

Velocidade e controle

open access: yesRevista Aurora, 2008
Trata-se de analisar as rápidas transformações da tecnociência na sociedade contemporânea, as quais exigem uma nova codificação do presente. Para tanto, o artigo busca articular conceitos como velocidade e controle, cunhados respectivamente pelo pensamento epistemo-técnico de Paul Virilio e pelo pensamento sócio-técnico de Gilles Deleuze, além de ...
openaire   +5 more sources

Modificaciones de curva velocidad-tiempo de la cadera en el estilo braza a distintas velocidades de nado [PDF]

open access: yes, 2002
El propósito del presente estudio fue observar cual era el comportamiento de la curva de velocidad de la cadera durante el nado estilo braza a diferentes velocidades de nado.
Arellano, R.   +2 more
core   +2 more sources

Increasingly conservative N cycling in a wet tropical forest: Litter and stream N concentrations decline over 29 years despite surges from hurricanes

open access: yesJournal of Ecology, Volume 113, Issue 9, Page 2476-2496, September 2025.
Conceptual model integrating short‐ and long‐term responses of N in litterfall and stream water in a wet tropical forest subject to hurricanes. Despite N surges following hurricanes, N cycling becomes more conservative in the absence of frequent hurricanes.
Heather E. Erickson   +3 more
wiley   +1 more source

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