Results 121 to 130 of about 2,041,912 (335)

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Strengthening the role of civil society in water sector governance towards climate change adaptation in African cities – Durban, Maputo, Nairobi [PDF]

open access: yes, 2013
Water resources management is one of the most important climate change-related issues on international, national and urban public policy agendas. Income inequality in South Africa, Mozambique, and Kenya is among the largest in the world; in all three ...
Figueiredo, P   +3 more
core  

Agroecología, sustentabilidad y ética ante la crisis ambiental actual

open access: yesRevista Investigium IRE Ciencias Sociales y Humanas, 2022
Alexis Benítez Aguilar
semanticscholar   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Sheep, territory and public policies in Patagonia [PDF]

open access: yes, 2015
Se presenta una periodización de la relación entre la ganadería ovina en la Patagonia y las políticas públicas sobre ovejas y tierras desde un abordaje con componentes agronómicos: 1) el boom ovino inicial, 2) las primeras señales de alerta, 3) la ...
Coronato, Fernando Raul
core  

Integral chain management of wildlife diseases [PDF]

open access: yes, 2019
The chytrid fungus Batrachochytrium dendrobatidis has caused the most prominent loss of vertebrate diversity ever recorded, which peaked in the 1980s. Recent incursion by its sister species B. salamandrivorans in Europe raised the alarm for a new wave of
Canessa, Stefano   +24 more
core   +2 more sources

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Políticas públicas - Poéticas públicas: antropocentrías descentradas y derivas del extractivismo con respecto a la acción humana

open access: yesNovum, 2021
Objetivo: El presente artículo establece relaciones entre Políticas públicas en la forma de formulaciones de la planeación del estado nación moderno, y la posibilidad de ser transformadas en poéticas, a la luz del diseño de transición y las diversas ...
Julián Andrés Cardona Romero
doaj  

Escasez de recursos naturales y crisis ambiental como amenazas estratégicas a la seguridad de los Estados Unidos. Las implicancias para América Latina en el siglo XXI [PDF]

open access: yes, 2017
En el presente artículo se señala que el tema de la escasez de recurso naturales estratégicos ha moldeado la política de seguridad nacional y defensa de los Estados Unidos desde la Segunda Guerra Mundial en adelante.
Estenssoro, Fernando
core   +1 more source

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

open access: yesAdvanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song   +3 more
wiley   +1 more source

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