Results 41 to 50 of about 3,083 (139)

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

open access: yesIntegrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez   +4 more
wiley   +1 more source

Percepción de estudiantes de Trabajo Social sobre derechos humanos en Chile

open access: yesAlternativas
Introducción. En 2023, Chile conmemoró 50 años de la dictadura cívico-militar en medio de un contexto de profunda relativización y negacionismo de los derechos fundamentales.
Cory Duarte Hidalgo   +3 more
doaj   +1 more source

Description and terrestrial ages of the Calama Area Meteorite Collection (Atacama Desert, Chile)

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract We present a comprehensive study of a meteorite collection from the Atacama Desert (Chile), the driest and most climatically stable desert in the world. This collection includes meteorites from three adjacent Dense Collection Areas (DCAs) in the northern part of the Atacama Desert: Calama, Sierra Gorda, and Chug Chug, referred to as the ...
Carine Sadaka   +9 more
wiley   +1 more source

Atacama Compact Array Correlator for Atacama Large Millimeter/submillimeter Array

open access: yes, 2011
6 pages, 4 figures, 2010 Asia-Pacific Radio Science Conference in Toyama, Japan on September 22-26, 2010 Commission J: Radio Astronomy J2 Millimeter- and Sub-millimeter-wave Telescope and ...
Okumura, Sachiko K.   +5 more
openaire   +2 more sources

Determinación de la intención de uso de tablets en alumnos de educación superior: Una aproximación desde la teoría del comportamiento planificado

open access: yesRevista Electrónica Educare
Objetivo. El objetivo de esta investigación es determinar si los factores subyacentes de la intención influyen en el uso de las tablets en estudiantes de Educación Superior, mediante el uso de la teoría del comportamiento planificado. Metodología.
Rafael Figueroa-Ortega   +3 more
doaj   +1 more source

Occurrence and Levels of Glyphosate, Chlorate and Perchlorate in Irish Drinking Water: A Pilot Study

open access: yesWater and Environment Journal, EarlyView.
ABSTRACT Safe drinking water is a crucial component of public health. Pesticides and disinfection byproducts are known pollutants of concern. This study aimed to investigate the levels of the herbicide glyphosate and disinfection byproducts in Irish drinking water.
Sewon Lee   +3 more
wiley   +1 more source

THE ATACAMA COSMOLOGY TELESCOPE: DATA CHARACTERIZATION AND MAPMAKING [PDF]

open access: yesThe Astrophysical Journal, 2012
We present a description of the data reduction and mapmaking pipeline used for the 2008 observing season of the Atacama Cosmology Telescope (ACT). The data presented here at 148 GHz represent 12% of the 90 TB collected by ACT from 2007 to 2010. In 2008 we observed for 136 days, producing a total of 1423 hours of data (11 TB for the 148 GHz band only ...
Dünner, Rolando   +73 more
openaire   +8 more sources

REMOCIÓN DE IONES COBRE Y NIQUEL CON CÁSCARA DE MANÍ

open access: yesHolos, 2018
En el presente trabajo se estudió la remoción de iones cobre y níquel utilizando cáscaras de maní mediante pruebas en lote en sistemas monocomponente y bicomponente (pruebas de remoción simultánea). En este estudio se evaluó el efecto de las variables pH,
Patricia Tapia   +3 more
doaj   +1 more source

Ecological and Individual‐Level Factors Associated With Hantavirus Cardiopulmonary Syndrome Notifications and in‐Hospital Mortality Among Hospitalized Patients in Chile, 2005–2022

open access: yesZoonoses and Public Health, EarlyView.
ABSTRACT Introduction Hantavirus cardiopulmonary syndrome (HCPS) is a severe zoonotic disease caused by Orthohantavirus andesense (Andes virus, ANDV), with significant public health burden in Chile. Despite decades of surveillance, knowledge gaps remain regarding the ecological drivers of notification burden and the individual‐level determinants of in ...
Benjamín Diethelm‐Varela   +7 more
wiley   +1 more source

Elevational variation in heart mass and suppression of hypoxia‐induced right ventricle hypertrophy in Andean leaf‐eared mice (Phyllotis)

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend In lowland mammals that ascend to high elevation, hypoxia‐induced changes in the pulmonary circulation can give rise to hypoxic pulmonary hypertension (HPH) and associated right‐ventricle (RV) hypertrophy. Andean mice with broad elevational ranges have greater heart mass relative to body size at higher elevations, but they ...
Naim M. Bautista   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy