Results 51 to 60 of about 236,510 (307)

Parasites of the flatfish Paralichthys adspersus (Steindachner, 1867) (Pleuronectiformes) from northern Chile

open access: yesMemorias do Instituto Oswaldo Cruz, 1996
Three species of protistan and 22 species of metazoan parasites were obtained from a sample of 179 flatfish, (Paralichthys adspersus) taken-off Antofagasta, northern Chile. Prevalence of infection of seven parasites (Protista: 1, Copepoda: 2, Digenea: 1,
Marcelo E Oliva   +2 more
doaj   +1 more source

Dimensions of the AI Divide: Digital Inequality and Psychological Consequences

open access: yesAI &Innovation, EarlyView.
ABSTRACT Artificial intelligence (AI) has become a foundational component of contemporary social, economic, and political life. Yet, the ways in which AI reshapes patterns of exclusion beyond questions of access and technical capability remain insufficiently theorized.
Christos Papaioannou
wiley   +1 more source

Evolution of the Great Tehuelche Paleolake in the Torres del Paine National Park of Chilean Patagonia during the Last Glacial Maximum and Holocene [PDF]

open access: yes, 2012
Indexación: Web of Science; ScieloRESUMEN. Una serie de morrenas glaciares se distribuyen desde el margen oriental de la cuenca de drenaje Torres del Paine a cerca del actual margen de los Campos de Hielo Patagónico, junto con una serie de terrazas ...
Airo, Alessandro   +4 more
core   +2 more sources

Innovative Artificial Intelligence‐Assisted Systems for Social Science Research: Architecture Design and Applied Practice

open access: yesAI &Innovation, EarlyView.
ABSTRACT The rapid advancement of large language model (LLM) technology is profoundly transforming the practice of social science research. Scholarly discussions on Artificial Intelligence (AI)'s role in social science research can be organised into three levels: AI as a research tool, AI as a methodological infrastructure and AI as a quasi‐cognitive ...
Jie Xiong
wiley   +1 more source

An international campaign of the 19th century to determine the solar parallax - The US Naval expedition to the southern hemisphere 1849 - 1852

open access: yes, 2014
In 1847 Christian Ludwig Gerling, Marburg (Germany), suggested the solar parallax to be determined by measuring the position of Venus close to its inferior conjunction, especially at the stationary points, from observatories on nearly the same meridian ...
Schrimpf, Andreas
core   +1 more source

El volcanismo jurásico superior de la Formación Río Damas-Tordillo (33°-35,5°S): antecedentes su sobre petrogénesis, cronología, proveniencia e implicancias tectónicas [PDF]

open access: yes, 2014
Los depósitos continentales y volcánicos de la Formación Rio Damas-Tordillo, Jurásico Superior, representan un período restringido de sedimentación continental dentro del registro mayormente marino de la Cuenca Neuquina.
Calderón, Sergio   +7 more
core   +2 more sources

Record of Northern Barracuda, Sphyraena ensis Jordan & Gilbert, 1882 (Perciformes, Sphyraenidae), from the extreme north of Chile during a non-ENSO (El Niño-Southern Oscillation) period [PDF]

open access: yesCheck List
A unique specimen of Northern Barracuda, Sphyraena ensis Jordan & Gilbert 1882, was accidentally captured off the coast of the city of Taltal in northern Chile.
Felipe Méndez-Abarca   +2 more
doaj   +3 more sources

Redistributive land reforms, agricultural productivity, and structural change: New cross‐national evidence

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra   +3 more
wiley   +1 more source

Early copper metallurgy in Northern Chile

open access: yesOpen Journal of Archaeometry, 2013
The Central Andean region of South America has a long tradition of mining and metallurgy. Such activities were fundamental to the economic, socio-political and ideological dynamics of the pre-Columbian cultures that inhabited this area. In spite of their importance, few archaeological investigations of metallurgy have been carried out in the Central ...
Maldonado, B   +4 more
openaire   +3 more sources

Efficacy and Safety of Subcutaneous Efgartigimod PH20 in Adults With Primary Immune Thrombocytopenia (ADVANCE SC): A Multicenter, Randomized, Double‐Blinded, Placebo‐Controlled, Phase 3 Trial

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT Primary autoimmune thrombocytopenia (ITP) is characterized by thrombocytopenia, bleeding, and reduced health‐related quality of life. In the Phase 3 ADVANCE IV study, intravenous efgartigimod induced significant platelet count responses versus placebo in patients with chronic ITP. ADVANCE SC, a Phase 3, multicenter, randomized, double‐blinded,
Nichola Cooper   +546 more
wiley   +1 more source

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