Results 21 to 30 of about 290,985 (193)

The collective application of shorebird tracking data to conservation

open access: yesConservation Biology, EarlyView.
Abstract Addressing urgent conservation issues, such as the drastic declines of North American migratory birds, requires creative, evidence‐based, efficient, and collaborative approaches. The abundance of over 50% of monitored North American shorebird populations has declined by over 50% since 1980. To address these declines, we developed a partnership
Autumn‐Lynn Harrison   +71 more
wiley   +1 more source

Functional polymeric materials for hard water treatment a comprehensive review

open access: yesDiscover Materials
Hard water, characterized by elevated concentrations of calcium (Ca²⁺) and magnesium (Mg²⁺) ions, poses substantial challenges to domestic, industrial, and environmental systems. Conventional treatment methods—such as chemical precipitation, ion exchange,
Olivia Hernández-Cruz   +2 more
doaj   +1 more source

Dinámica y relación del contagio del COVID-19 después de iniciado el plan de vacunación contra el SARS-COV-2 en Colombia

open access: yesRepertorio de Medicina y Cirugía, 2021
Introducción: desde la identificación de los primeros casos de enfermedad por coronavirus 2019 (COVID-19) originada por el síndrome respiratorio agudo severo coronavirus 2 (SARS-CoV-2) en diciembre 2019, la pandemia resultante ha dado lugar a más de 130 ...
Jorge Enrique Díaz Pinzón
doaj   +1 more source

Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon

open access: yesConservation Biology, EarlyView.
Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch   +8 more
wiley   +1 more source

La educación secundaria: evaluación, pruebas estandarizadas y dinámicas institucionales

open access: yesRECIE Revista Electrónica Científica de Investigación Educativa, 2012
El presente trabajo contiene los resultados de un estudio etnográfico, apoyado por el Fondo Mixto CONACYT-Gobierno del Estado de Chihuahua, que se llevó a cabo en ocho escuelas secundarias federalizadas –cuatro generales y cuatro técnicas-, ubicadas en ...
David Manuel Arzola Franco
doaj   +1 more source

How endorser attributes influence conservation communication

open access: yesConservation Biology, EarlyView.
Abstract Conservation communication often uses the celebrity endorsement strategy. However, robust evidence regarding its effectiveness is still limited. More importantly, practitioners do not have guidelines for selecting an ideal endorser because there is no clear consensus on what endorser attributes are most critical.
Xia He, Tien Ming Lee
wiley   +1 more source

FUsaM: Framework, con base en una SPL, para la medición de usabilidad en aplicaciones móviles

open access: yesUniciencia, 2016
El uso masivo de los dispositivos móviles, asociado a la heterogeneidad de estos y también de los usuarios, implica un desafío al momento de evaluar la usabilidad de las aplicaciones móviles.
Juan G. Enríquez, Sandra I. Casas
doaj   +1 more source

The obsolescence of protected area categories in a polycrisis world

open access: yesConservation Biology, EarlyView.
Abstract Current global conservation models face significant limitations in addressing the global polycrisis, and the constraints of the International Union for Conservation of Nature protected area (PA) classification system are part of the issue. The principles of the new conservation paradigm—governance, equity, and interculturality—are not viable ...
Pamela Esther Degele
wiley   +1 more source

Participation in learning assessments in the developing world, 1960-2009

open access: yesEducation Policy Analysis Archives, 2014
This paper examines annual changes in the participation of developing countries in different kinds of learning assessments over the past three decades.
David H. Kamens, Aaron Benavot
doaj   +1 more source

Risk reduction, rangeland use, and the future of human–carnivore coexistence

open access: yesConservation Biology, EarlyView.
Abstract Efforts to reduce livestock losses to large carnivores are widely regarded as essential for promoting human–carnivore coexistence. Predator‐proof enclosures, compensation programs, improved livestock guarding, and real‐time predator alert systems can reduce depredation and retaliatory killing while enhancing pastoralist livelihoods.
Craig Packer
wiley   +1 more source

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