Results 21 to 30 of about 64,518 (254)
El despoblamiento rural y el abandono de la actividad agraria han originado una intensa transformación de los paisajes característicos de las montañas mediterráneas.
J. Vila Subirós +3 more
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[fr] On étudie la dynamique d'érosion de la surface du sol dans quelques versants de montagne de la source de la Ribera Salada (bassin du Sègre) en testant les modèles EROSION2D et EUROSEM. Trois usages du sol ont été différenciés: (1) Sous-bois du chêne
J. M. Verdú, R. J. Batalla, R. Mª Poch
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Chemical Survey of Three Species of the Genus Rauhia Traub (Amaryllidaceae)
Plant biodiversity is an important source of compounds with medicinal properties. The alkaloid galanthamine, first isolated from Galanthus woronowii (Amaryllidaceae), is approved by the FDA for the palliative treatment of mild to moderate Alzheimer’s ...
Luciana R. Tallini +7 more
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[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
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The great complexity of the nitrogen cycle, including anthropogenic contributions, makes it necessary to carry out local studies, which allow us to identify the specific cause-effect links in a particular society. Models of local societies that are based
Jordi Bartrola +2 more
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A protocol was developed to visualize and analyze the structure of membrane vesicles (MVs) from Gram-negative bacteria. It is now accepted that these micrometric spherical vesicles are commonly produced by cells from all three domains of life, so the ...
Lidia Delgado +4 more
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Vascular flora associated to Mediterranean temporary ponds on the island of Minorca
Mediterranean temporary ponds are a habitat with a high interest for conservation due to their particular characteristics and especially to their biodiversity. Vascular flora is a feature that stands out for its richness and diversity. Minorca has a high
Pere Fraga i Arguimbau
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Ophrys x castroviejoi (Orchidaceae), a new hybrid for Spain.
Ophrys x castroviejoi is described and illustrated; it is a hybrid of O. scolopax and O. speculum, wich was obtained artificially in 1931 and named as O. x kelleriella, considered nomen nudum. It is offered its known distribution and current situation in
Lluís Serra Laliga, Jaume X. Soler
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