Results 1 to 10 of about 127,516 (233)

Cambios poblacionales de una comunidad de aves esteparias en una localidad del centro de España en un periodo de 35 años [PDF]

open access: yesMunibe Ciencias Naturales, 2021
Se analizan los cambios interanuales de una comunidad reproductora de aves esteparias en un área de cultivos cerealistas localizada en el centro de España (Sepúlveda, provincia de Segovia). Los datos proceden de ocho itinerarios en los que se registraron
Tomás Santos
doaj   +1 more source

El Cuartelazo de Pasto [PDF]

open access: yesHistoria Crítica, 2009
The political antagonism between the Liberal and Conservative parties reached their historical nadir during the second administration of Alfonso López Pumarejo. The Armed Forces were not absent from this confrontation. They were approached to build solidarities or unrest, support or opposition. The Pasto Putsch, just as conspiracy outbreaks or attempts,
openaire   +4 more sources

Karyotypic variation in the Andean rodent Phyllotis xanthopygus (Waterhouse, 1837) (Rodentia, Cricetidae, Sigmodontinae) [PDF]

open access: yes, 2014
Phyllotis xanthopygus (Waterhouse, 1837) is an Andean rodent endemic to South America. Despite its wide geographical distribution in Argentina, few individuals have been studied on the cytogenetic level and only through conventional staining.
Cuello, Pablo Andrés   +8 more
core   +4 more sources

DO PASTO AO GRÃO

open access: yesGEOFRONTER, 2023
A Amazônia brasileira vem sendo rapidamente transformada pela extração de madeira, queimadas, inserção de pastagens, estabelecimento de culturas agrícolas e extração mineral. No território maranhense, a intervenção antrópica resultou na supressão da vegetação nativa e em muitos outros problemas ambientais, sendo que em municípios como Buriticupu, o ...
Marcelino Silva Farias Filho   +2 more
openaire   +1 more source

Desempenho produtivo e parâmetros de carcaça de cordeiros mantidos em pastos irrigados e suplementados com doses crescentes de concentrado. [PDF]

open access: yes, 2017
O presente estudo teve como objetivo avaliar o desempenho produtivo e os parâmetros de carcaça de ovinos terminados em pastos irrigados de Tifton 85 que receberam doses crescentes de ...
ARAUJO, G. G. L. de   +5 more
core   +1 more source

Timing of the magmatism of the paleo-Pacific border of Gondwana: U-Pb geochronology of Late Paleozoic to Early Mesozoic igneous rocks of the north Chilean Andes between 20° and 31°S [PDF]

open access: yes, 2014
Indexación: Web of Science; ScieloABSTRACT. U-Pb zircon geochronological data provide record of about 130 Ma of igneous activity in the Andes of northern Chile, which extended episodically from the latest Early Carboniferous to Early Jurassic (328-194 Ma)
Maksaev, Víctor   +2 more
core   +1 more source

Estrategia de desarrollo agropecuario en unidades  básicas de producción cooperativa

open access: yesRetos de la Dirección, 2009
Se desarrolló una planificación estratégica participativa en 20 unidades básicas de producción cooperativa (UBPC) —ganaderas y de cultivos varios— de la provincia de Matanzas, Cuba.
Hilda Machado   +8 more
doaj   +2 more sources

NIRS potential use for the determination of natural resources quality from dehesa (acorn and grass) in Montanera system for Iberian pigs. [PDF]

open access: yes, 2018
NIRS technology has been used as an alternative to conventional methods to determinate the content of nutrients of acorns and grass from dehesa ecosystem.
Cabeza de Vaca, M   +9 more
core   +1 more source

A Modified Grouped-Tag TDMA Access Protocol for Radio Frequency Identification Networks [PDF]

open access: yes, 2000
In this paper we describe a new medium access protocol termed as the modified grouped-tag TDMA protocol (MGTDMA) for networking radio frequency identification tags.
Pastos, Nicos, Viswanathan, R.
core   +1 more source

Cerdos y otras bestias. Pastos comunales/pastos públicos en la Lex Visigothorum

open access: yesMélanges de la Casa de Velázquez, 2021
[Es] La existencia de una propiedad comunal, o un aprovechamiento p?blico de bienes comunes, resulta bastante esquiva en la historiograf?a relativa a la historia campesina de la Hispania tardoantigua. M?s all? del indudable papel de la ganader?a en la econom?a del periodo, las leyes sobre frutos comunes o pastos compartidos son escasas y equ?vocas. Las
openaire   +4 more sources

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