Results 51 to 60 of about 23,977 (218)

La desregulación de las cooperativas eléctricas no concesionarias en chile: san pedro de atacama como paradigma de referencia [PDF]

open access: yes, 2016
Este trabajo afrontará el contexto general del sistema eléctrico y su incidencia en casos excepcionales, particularmente con empresas no concesionaras de distribución, poniendo énfasis en un caso referencial de carácter rural, la Cooperativa Eléctrica de
Ascencio Otárola, Marco Felipe
core  

OSTEOFITOSIS VERTEBRAL EN POBLACIONES PREHISPÁNICAS DE SAN PEDRO DE ATACAMA, NORTE DE CHILE [PDF]

open access: yesEstudios atacameños, 2015
Se estudió la osteofitosis vertebral como indicador de estrés físico en grupos humanos prehistóricos de San Pedro de Atacama, durante los períodos Medio (400 DC - 1000 DC) e Intermedio Tardío (1000 DC - 1450 DC). Se registró el grado promedio de osteofitosis vertebral de cada segmento vertebral en 154 individuos adultos de cuatro sitios: Solcor 3, Coyo
López-Barrales, Rocío   +4 more
openaire   +8 more sources

Terrestrial ages of meteorites from the Atacama Desert (Chile) and insights into the past meteorite flux to Earth

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 4, Page 644-663, April 2026.
Abstract The Atacama Desert in Chile is characterized by its high meteorite density and old meteorite terrestrial ages. In this work, we present new terrestrial ages derived from measurements of the concentration of cosmogenic 36Cl in the metal fraction of 51 ordinary chondrites collected over a 6.8 km2 area located in the Catalina Dense Collection ...
Carine Sadaka   +13 more
wiley   +1 more source

Observing Conditions for Submillimeter Astronomy [PDF]

open access: yes, 2011
Consistently superb observing conditions are crucial for achieving the scientific objectives of a telescope. Submillimeter astronomy is possible only at a few exceptionally dry sites, notably Mauna Kea, the Antarctic plateau, and the Chajnantor region in
Radford, Simon J. E.
core   +3 more sources

La Memoria del Fuego. Antracología, Pirotecnología y Metalurgia Prehispánica del Período Tardío en San Pedro de Atacama, Chile

open access: yesRevista del Museo de Antropologia
A partir de las excavaciones en dos hornos metalúrgicos del sitio Catarpe Túnel (San Pedro de Atacama) en operación durante el Período Tardío (1400-1536 DC), y orientados a la producción de cobre metálico, se discute el rol del combustible leñoso en el ...
Daniela Grimberg   +2 more
semanticscholar   +1 more source

The Atacama Large Millimeter/submillimeter Array: Overview & status [PDF]

open access: yes, 2006
The Atacama Large Millimeter/submillimeter Array (ALMA) is an international radio telescope under construction in the Atacama Desert of northern Chile. ALMA will be situated on a high-altitude site at 5000 m elevation which provides excellent atmospheric
Beasley, A. J.   +2 more
core   +2 more sources

An Integrative Appraisal of the Diversity of the Genus Myotis (Chiroptera, Vespertilionidae) in Chile

open access: yesJournal of Zoological Systematics and Evolutionary Research, Volume 2026, Issue 1, 2026.
The taxonomy of Chilean Myotis has long been contentious, particularly regarding the status of M. arescens relative to M. atacamensis and M. chiloensis. Here, we use an integrative framework combining genome‐wide single nucleotide polymorphisms (SNPs), morphometrics, and bioacoustics to reassess lineage boundaries and evolutionary relationships in ...
Enrique Rodríguez-Serrano   +8 more
wiley   +1 more source

Influencias altiplánicas en San Pedro de Atacama

open access: yesEstudios atacameños, 1984
El presente informe adelanta parte de los resultados de una investigación aprobada por el Departamento de Desarrollo Científico de la Universidad de Chile. El análisis que hacemos de las influencias altiplánicas en la región de San Pedro de Atacama y, en especial, de la civilización Tiwanaku, no tiene como objetivo central individualizar artefactos y ...
openaire   +3 more sources

Biotic Assembly of the Species of Triatomini (Hemiptera: Reduviidae: Triatominae) in the Mexican and South American Transition Zones

open access: yesJournal of Biogeography, Volume 52, Issue 10, October 2025.
ABSTRACT Aim To infer the biogeographic history of the Triatomini by evaluating how their species became part of the biogeographic transition zones of the New World. This group of blood‐feeding insects includes key vectors of Chagas disease. Understanding their dispersal and diversification over geological time may help elucidate the temporal dynamics ...
Andrés Mejía‐Soto   +4 more
wiley   +1 more source

Study of the plutino object (208996) 2003 AZ84 from stellar occultations: size, shape and topographic features [PDF]

open access: yes, 2017
We present results derived from four stellar occultations by the plutino object (208996) 2003~AZ$_{84}$, detected at January 8, 2011 (single-chord event), February 3, 2012 (multi-chord), December 2, 2013 (single-chord) and November 15, 2014 (multi-chord).
Andersson, S.   +62 more
core   +3 more sources

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