Results 41 to 50 of about 136,509 (322)

La degradación ambiental de la cuenca endoreica Coy Aike, patagonia Austral, Argentina, y su implicancia en establecimientos agropecuarios.

open access: yesPerspectiva Geográfica, 2014
Este trabajo determina los procesos de degradación de la unidad ecológica Matorral de Mata Negra y la disminución de la capacidad de carga producida por la transformación del paisaje en la cuenca endorreica Coy Aike.
Paula Diez   +2 more
doaj   +1 more source

Environmental and climatic proxies for the Cañadón Asfalto and Neuquén basins (Patagonia, Argentina): review of middle to upper jurassic continental and near coastal sequences [PDF]

open access: yes, 2015
In this review, we include several proxies (sedimentology, palynology, invertebrates) from the Cañadón Asfalto and Neuquén basins, to infer the environments and regional climatic context during the Middle to Late Jurassic of Patagonia.
Cabaleri, Nora Graciela   +6 more
core   +1 more source

STAGGERS IN SHEEP IN PATAGONIA [PDF]

open access: yesJournal of Experimental Medicine, 1917
After observations and experimental work both in the field and laboratory, the following conclusions seem justified. 1. Staggers is a non-infectious disorder affecting horses, cattle, and sheep. 2. The disease is characterized by weakness, muscular twitching, irregular movements of the head, stiffness of the limbs, and ...
J. F. Arnold, F. S. Jones
openaire   +3 more sources

Acceso al suelo urbano y riesgo ambiental. Comodoro rivadavia, Patagonia argentina.

open access: yesBitácora Urbano Territorial, 2019
La conformación urbana de Comodoro Rivadavia en la Patagonia argentina ha sido influida históricamente por la extracción de hidrocarburos, condicionando el acceso al suelo urbano.
Gustavo David Romeo, Letizia Vazquez
doaj   +1 more source

The Gondwana connections of northern Patagonia [PDF]

open access: yesJournal of the Geological Society, 2014
A multidisciplinary study (U–Pb sensitive high-resolution ion microprobe geochronology, Hf and O isotopes in zircon, Sr and Nd isotopes in whole-rocks, as well as major and trace element geochemistry) has been carried out on granitoid samples from the area west of Valcheta, North Patagonian Massif, Argentina.
Pankhurst, Robert J   +5 more
openaire   +6 more sources

Preliminary Appraisal of a Correlation Between Glaciations and Large Igneous Provinces Over the Past 720 Million Years

open access: yesGeophysical Monograph Series, Page 169-190., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi   +9 more
wiley  

+2 more sources

The signature of river- and wind-borne materials exported from Patagonia to the southern latitudes: a view from REEs and implications for paleoclimatic interpretations [PDF]

open access: yes, 2004
Riverine and wind-borne materials transferred from Patagonia to the SW Atlantic exhibit a homogeneous rare earth element (REE) signature. They match well with the REE composition of Recent tephra from the Hudson volcano,and hence this implies a ...
Bidart, Susana M.   +4 more
core   +2 more sources

Ecosistemas de APIs WEB: Análisis y Caracterización Socio-Técnica

open access: yesRevista Científica de Sistemas e Informática
La Transformación Digital y la Economía API han dado origen a ecosistemas digitales, donde las APIs Web son los activos principales. Los Ecosistemas de APIs Web (EAW) reúnen en una plataforma personas, empresas, servicios, recursos, herramientas e ...
Sandra Casas   +3 more
doaj   +1 more source

New Data on Armadillos (Xenarthra: Dasypodidae) for Central Patagonia, Argentina [PDF]

open access: yes, 2010
Armadillos represent the most diverse family of xenarthrans. Although many studies have been done on these mammals, several topics, such as their local distribution, natural history, behavioral ecology and conservation, remain poorly known ...
Abba, Agustin Manuel   +2 more
core   +2 more sources

Buried Treasure? Overlooked and Newly Discovered Evolutionary Contributions to Human Brain Diseases

open access: yesAnnals of Neurology, EarlyView.
Recapitulative schema of different exploratory levels of the evolutionary impact on human neurological diseases. Clinical neuroscience focuses on the mechanisms of brain function, but this approach falls short of insights into how the central nervous system (CNS) evolved, both in health and disease.
Nico J. Diederich   +20 more
wiley   +1 more source

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