Results 41 to 50 of about 1,046 (120)

Microclimate refugia shape microclimatic niches and predict individual variability in post‐breeding migration in a partially migratory species

Journal of Animal Ecology, Volume 94, Issue 12, Page 2527-2541, December 2025.
The niche is characterized along a gradient of temperature and microclimate refugia. Individuals in breeding areas with low microclimate refugia availability are more likely to cover larger distances to post‐breeding areas, increasing exposure to risks.
Rita F. Ramos, Karolina Zalewska, James J. Gilroy, João P. Silva, Aldina M. A. Franco   +4 more
wiley   +1 more source

Planificación de posicionamiento satelital multiconstelación en entornos urbanos

Revista UIS Ingenierías, 2019
Un posicionamiento mediante un servicio GNSS (sistema global de navegación por satélite) solo es posible con la recepción simultánea de la señal de al menos cuatro satélites.
Michael S. Puentes, Diego Rueda, Raul Ramos, Carlos J Barrios   +3 more
doaj   +1 more source

Impact of Filtering Methods in the Assessment of COSMIC Electron Density Profiles Over the Brazilian Region: Excluding Profiles With Negative Values Is the Best Strategy?

Radio Science, Volume 60, Issue 11, November 2025.
Abstract Global Navigation Satellite Systems radio occultation (RO) is a valuable and relevant source of information from the atmosphere. Many efforts have been made to provide methods of validation of RO profiles, however, no clear methodology for filtering the profiles from RO can be easily found.
Gabriel O. Jerez, Manuel Hernández‐Pajares, Daniele B. M. Alves, João F. G. Monico   +3 more
wiley   +1 more source

Geopolítica del Espacio Exterior [PDF]

Revista UNISCI
En el campo militar hemos pasado a considerar el espacio como un dominio más, a añadir a los tradicionales (tierra, mar y aire, y, si acaso, el ciberespacio).
Josep Baqués Quesada
doaj  

The Role of Protected Areas in Combating Tropical Dry Forest Loss: Insights From Kirindy Mitea National Park, Madagascar

Biotropica, Volume 57, Issue 6, November 2025.
Tropical dry forests face severe threats from deforestation, endangering both people and wildlife. This study examines the effectiveness of Kirindy Mitea National Park (KMNP) in Madagascar in preventing forest loss from 1993 to 2023 using satellite imagery.
Domenic Romanello, Rebecca J. Lewis, Mirana J. E. Rahariniaina, Heriniaina M. Rakotohary, Anne C. Axel   +4 more
wiley   +1 more source

Reconstructing historical catch trends of threatened sharks and rays based on fisher ecological knowledge

Conservation Biology, Volume 39, Issue 5, October 2025.
Abstract Small‐scale fisheries often lack historical shark and ray catch information, hampering their management. We reconstructed historical catch trends and current fishing pressure by combining local ecological knowledge, satellite‐based vessel counts, and a short‐term landing‐site survey.
Guido Leurs, Rima W. Jabado, Assana Camará, Lilísio Dos Santos, Diosnes Manuel Nonque, Thije J. Zuidewind, Iça Barry, Pierre Campredon, Benja Blaschke, Karin de Boer, Nadia Hijner, Han Olff, Samuel Ledo Pontes, Aissa Regalla, Matthew Bjerregaard Walsh, Laura L. Govers   +15 more
wiley   +1 more source

An exploration of market mechanisms to the wicked problem of space debris 太空垃圾棘手问题的市场机制探究 Una exploración de los mecanismos del mercado para resolver el complejo problema de los desechos espaciales

Risk, Hazards &Crisis in Public Policy, Volume 16, Issue 3, September 2025.
Abstract Near‐earth orbits are becoming congested because of a rapid growth in the number of satellites and space debris, which presents a real threat to the sustainable use of space and the safety of the Earth. Despite space scientists and public policymakers having been actively seeking solutions for decades, solving the problem has been put off ...
Anna Ya Ni, Maureen Mayala, Faith Victoria Ni   +2 more
wiley   +1 more source

¡Que nadie se mueva! Sin televisión no hay nación

Umática
En este ensayo mostraremos el ensamblaje social y político que posibilitó el primer satélite mexicano llamado Morelos I y que marca, de manera simbólica, la entrada de México a la era neoliberal y el empoderamiento de Televisa como productora de la ...
Ilana Boltvinik, Rodrigo Viñas Miranda
doaj   +1 more source

Compression‐Expansion: Miniaturization, Modularity, and Logistics Beyond Earth

American Anthropologist, Volume 127, Issue 3, Page 424-434, September 2025.
ABSTRACT If the Cold War space race culminated in a return to Earth, at present we are experiencing a renewed interest in space. Drawing on fieldwork among people working in the space sector in Sweden, this article focuses on some of the imaginaries underpinning this resurgence and the contemporary commercialization of space. Specifically, I hone in on
Chakad Ojani
wiley   +1 more source

Los cariotipos de Cologania grandiflora y Erythrina americana (Leguminosae- Papilionoideae-Phaseoleae) de la Reserva Ecológica del Pedregal de San Ángel, México Karyotypes of Cologania grandiflora and Erythrina americana (Leguminosae-Papilionoideae- Phaseoleae) of Reserva Ecológica del Pedregal de San Ángel, Mexico

Revista Mexicana de Biodiversidad, 2011
Se analizaron citogenéticamente células provenientes de meristemos radiculares de 2 leguminosas, Cologania grandiflora y Erythrina americana, que en la actualidad están incluidas en la flora de la Reserva Ecológica del Pedregal de San Ángel, México, D. F.
Fernando Tapia-Pastrana, Anahid Jiménez-Salazar   +1 more
doaj