Results 41 to 50 of about 365,698 (167)

Economía Ecológica y Ecología Política en el Ámbito de la Educación Ambiental [PDF]

open access: yes, 2012
La crisis social y ambiental es uno de los mayores problemas al que se enfrentan las sociedades a día de hoy. Uno de los retos más importantes de la educación es dotar al profesorado y al alumnado de las herramientas conceptuales adecuadas para ...
Ferrante, Sandra   +3 more
core  

Synthesis of Large‐Area 2D Prussian Blue as Ion‐Transport Channels for Non‐Volatile Memristors

open access: yesSmall, EarlyView.
A robust liquid‐liquid interfacial synthesis enables continuous, large‐area 2D Prussian blue films with tunable thickness from ∼2 nm to hundreds of nanometers. Controlled reduction guides slow, directional layer growth, yielding high‐quality flakes. These films show exceptional ion transport and device integration, demonstrated in memristors with long ...
Ramón Torres‐Cavanillas   +9 more
wiley   +1 more source

Extracción de recursos naturales en contextos de abundancia y escasez: Un análisis experimental sobre infracciones a cuotas en áreas de manejo y explotación de recursos bentónicos en el centro-sur de Chile

open access: yesEstudios de Economía, 2014
Estudiamos, por medio de un experimento económico de campo contextualizado, los efectos de cambios exógenos en los niveles de abundancia de un recurso natural renovable en las decisiones de cumplimiento individual de usuarios operando bajo un régimen de ...
Oscar Santis, Carlos Chávez
doaj  

Dimensional stability and water transport behavior of concrete with high contents of wind‐turbine blade waste

open access: yesStructural Concrete, EarlyView.
Abstract Fiber addition is a common strategy to enhance concrete's durability, avoiding cracks and reducing penetration of harmful agents. In this research, a sustainable fiber‐like material obtained from mechanical recycling of dismantled wind‐turbine blades and made up of glass fiber‐reinforced polymer (GFRP) fibers and microfibers, balsa wood, and ...
Javier Manso‐Morato   +4 more
wiley   +1 more source

The L108I polymorphism in mouse prion protein drives spontaneous disease and enhances transmission of atypical and classical prion strains

open access: yesBrain Pathology, EarlyView.
A single amino acid change (L108I) combined with PrP overexpression drives spontaneous atypical prion formation in mice, enabling also efficient propagation of diverse prion strains. This model allows studying how spontaneous prion diseases arise and provides powerful tools for investigating strain emergence, transmission barriers, and mechanisms ...
Hasier Eraña   +20 more
wiley   +1 more source

Políticas de control y regulación ambiental

open access: yesExpresión Económica, 2016
En el presente trabajo se analiza la literatura referente a la aplicación de políticas ambientales específicas por parte del gobierno que empaten armónicamente el progreso económico y la sustentabilidad en el largo plazo.
Salvador Sandoval Bravo
doaj   +1 more source

Chile y el medio ambiente : notas en los ámbitos interno e internacional [PDF]

open access: yes, 2005
Desde el inicio de 1990, Chile ha profundizado las reformas económicas en el campo del libre comercio, por tres vías principales: multilateral, regional y bilateral.
Lucas Garín, Andrea
core   +2 more sources

Evaluating Electric Harps and Muzzles to Mitigate the Impact of Vespa velutina nigrithorax at Beehives

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT The Asian hornet (Vespa velutina nigrithorax) poses a significant threat to the beekeeping industry. Using an experimental apiary of 36 hives, we simultaneously evaluated the effectiveness of two mitigation measures—muzzles and electric harps—in reducing the impact of Asian hornets on honey bee colonies.
Núria Roura‐Pascual   +9 more
wiley   +1 more source

Rapid postfire color shift in a Mediterranean lizard

open access: yesJournal of Zoology, EarlyView.
We quantified dorsal luminosity and color composition of Psammodromus algirus in burned and adjacent unburned habitats at different times since fire. Lizards inhabiting recently burned areas displayed lighter dorsal coloration, particularly during the early stages of postfire succession, with the effect being more pronounced in larger individuals ...
L. Álvarez‐Ruiz   +2 more
wiley   +1 more source

Beyond species means – the intraspecific contribution to global wood density variation

open access: yesNew Phytologist, EarlyView.
Summary Wood density is central for estimating vegetation carbon storage and a plant functional trait of great ecological and evolutionary importance. However, the global extent of wood density variation is unclear, especially at the intraspecific level. We assembled the most comprehensive wood density collection to date, including 109 626 records from
Fabian Jörg Fischer   +105 more
wiley   +1 more source

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