Results 121 to 130 of about 1,438,670 (274)

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

open access: yesSedimentology, EarlyView.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti   +5 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

Aplicación del índice de sustentabilidad WSI en la cuenca Lerma-Chapala

open access: yesTecnología y ciencias del agua, 2013
Los indicadores ambientales para medir la sustentabilidad se usan a partir de la década de los años setenta, cuando la defensa del medio ambiente se convirtió en uno de los temas más importantes de las campañas y agendas políticas en varios países.
Margarita Preciado-Jiménez   +3 more
doaj  

Agua Segura Vs Agua Potable

open access: yes, 2017
XXXVI Encuentro de Geohistoria ...
openaire   +1 more source

El derecho fundamental al agua potable en Colombia: el por qué de su existencia y los principales problemas que conlleva su materialización efectiva [PDF]

open access: yes, 2019
Artículo de investigación1. Introducción. 2. Metodología. 3. El derecho al agua a la luz del ordenamiento jurídico internacional. 4. El derecho fundamental al agua potable, su reconocimiento y evolución por parte de la Corte Constitucional Colombiana.
Sánchez-Prieto, Manuel Esteban
core  

Decadal climate variability and increasing exposure of Chilean agriculture

open access: yesAgricultural &Environmental Letters, Volume 11, Issue 1, June 2026.
Abstract Central Chile has undergone a steady shift from traditional annual crops to fruit orchards and vineyards, and a decline in the area dedicated to annual crops. This transition coincides with a decrease in precipitation and an increase in temperature.
Diego Rivera   +5 more
wiley   +1 more source

Aguas Moras, aguas cristianas

open access: yes, 1973
"Este Artículo pertenece a la sección Las cassettes de Mc Macarra. "
openaire   +1 more source

Water privatisation and restructuring in Latin America, 2007 [PDF]

open access: yes, 2007
A detailed survey of developments in water in south America, including the retreat of the multinationals, the development of public sector alternatives, and persistent problems with compensation claims and development bank ...
Hall, David, Lobina, Emanuele
core  

“The Future Is Ancestral”: The Environmental Cuir Utopias of Gabriela Cabezón Cámara

open access: yesFuture Humanities, Volume 4, Issue 1, May 2026.
ABSTRACT Argentinian author Gabriela Cabezón Cámara identifies as a “socio‐environmentalist and writer” and has been actively involved in the feminist movement #NiUnaMenos since 2015, alongside her growing engagement with environmental activism. She advocates for Indigenous land rights, water accessibility, and challenges offshore petroleum extraction ...
Victoria Jara
wiley   +1 more source

Metodología para la delimitación y caracterización de humedales en escalas 1:50 000 y 1:20 000

open access: yesTecnología y ciencias del agua, 2016
Se analiza la situación retrospectiva y actual de los humedales localizados en la zona de la Vertiente Pacífica del estado de Chiapas, México, para lo cual se aplicaron técnicas de percepción remota empleando imágenes satelitales tomadas en 1986, 2004 y ...
Jorge Brena   +2 more
doaj  

Home - About - Disclaimer - Privacy