Results 71 to 80 of about 79,798 (308)

Trame Verte et Bleue : Utilisation des cartes d’occupation du sol pour une première approche qualitative de la biodiversité

open access: yesCybergeo, 2011
The need to integrate individual movements of species and their different dispersions is becoming urgent in biodiversity conservation, especially in our countries which are more and more fragmented.
Sandrine Liénard, Philippe Clergeau
doaj   +1 more source

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai   +6 more
wiley   +1 more source

Monitorizacion de los cambios de uso del suelo en la cabecera de cuenca de la ribera salada mediante fotografía aérea y S.I.G. (El Solsonès, Lleida, España)

open access: yesPirineos: Revista de Ecología de Montaña, 1999
[es] Durante estos últimos 50 años ha tenido lugar un abandono de las masías y de los cultivos tradicionales en los Prepirineos catalanes. En este trabajo se han estudiado los cambios de usos del suelo desde los años 50 hasta la actualidad en una cuenca
J. M. Ubalde, J. Rius, R. M. Poch
doaj   +1 more source

The Glacier Complexes of the Mountain Massifs of the North-West of Inner Asia and their Dynamics [PDF]

open access: yes, 2011
The subject of this paper is the glaciation of the mountain massifs Mongun-Taiga, Tavan-Boghd-Ola, Turgeni- Nuru, and Harhira-Nuru. The glaciation is represented mostly by small forms that sometimes form a single complex of domeshaped peaks ...
Chistyakov , Kirill V.   +3 more
core   +2 more sources

In‐Situ Solution Complexation for n‐Type Surface‐Energetics Reconstruction in 2.0 eV Ultra‐Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
A reactive in situ solution complexation strategy reconstructs the surface of 2.0 eV ultra‐wide‐bandgap perovskites via proton transfer. This chemical modulation eliminates metallic defects and induces a degenerate‐like n‐type surface, establishing an Ohmic tunneling contact.
Saemon Yoon   +11 more
wiley   +1 more source

Pratiques de gestion de la fertilité des sols des cuvettes oasiennes du sud-est du Niger

open access: yesRevue Marocaine des Sciences Agronomiques et Vétérinaires
L’un des défis auxquels les exploitants des cuvettes du sud-est du Niger sont confrontés est sans doute le maintien de la fertilité des sols. Cette situation est d’autant plus préoccupante car ces cuvettes sont la source principale de production et de ...
Mahamet CHEICK   +2 more
doaj   +1 more source

Use of soil and climate data to assess the risk of agricultural drought for policy support in Europe. [PDF]

open access: yes, 2001
This paper describes the use of soil and climatic data for assessing the risk of drought in Europe. Soil moisture regimes are defined for soil classification purposes and these can be used to delineate areas with the same type of soil climate.
Jones, Robert J. A.   +2 more
core   +4 more sources

Bioactive Conductive Ti3C2Tx‐Ce Hydrogel Facilitates Spinal Cord Injury Repair Through ROS Scavenging and Mitochondrial Regulation

open access: yesAdvanced Functional Materials, EarlyView.
Bioactive conductive Ti3C2Tx‐Ce hydrogels with with scavenging ROS and alleviating neuronal mitochondrial dysfunction are exploited for SCI treatment. This functionality is attributed to interfacial activation modification of Ti3C2Tx with Ce3+ ions to in‐situ form Ce(OH)x‐mediated protective layer, which is beneficial to enabling stable intracellular ...
Weikang Wang   +12 more
wiley   +1 more source

Utilisation et résistance d’un nouveau jouet introduit chez des macaques cynomolgus hébergés en milieu standard ou appauvri

open access: yesRevue de Primatologie, 2016
Les centres fournisseurs et utilisateurs de primates non-humains (PNH) à des fins scientifiques hébergent les animaux dans des conditions adaptées à leur statut sanitaire et leur rôle ponctuel (reproduction, élevage, stabulation, en étude) tout en ...
Helen Beyer   +2 more
doaj   +1 more source

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng   +16 more
wiley   +1 more source

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