Results 81 to 90 of about 89,888 (201)

Water for Life: A Journey to Nicaragua Exploring Sustainable Development [PDF]

open access: yes, 2009
When I first arrived in the Peruvian Altiplano as a Maryknoll missioner 15 years ago, I was struck by the presence of a beautifully engineered system of irrigation canals extending through several communities. Engineers love to solve problems, and seeing
Maurer, Edwin P.
core   +1 more source

Suaeda foliosa Moq. (Caryophyllales: Amaranthaceae) first record of the genus and species for Valparaíso Region, Chile [PDF]

open access: yes, 2015
Indexación: Web of Science; Scielo.BACKGROUND: The purpose of this paper is to present the finding of Suaeda foliosa in El Yali National Reserve, Chile.
Contreras-López, Manuel   +1 more
core   +2 more sources

IGBT Traction Convertor of Electric Locomotives for Altiplano

open access: yes机车电传动, 2012
Main technic parameters, power circuit and it’s converter module characteristics of IGBT traction convertor of electric locomotives for altiplano were introduced. The adaptability design for altiplano was presented such as the working principle of heater,
FAN Rong-hui   +3 more
doaj  

A MAGNETOTELLURIC SURVEY IN THE NORTHERN BOLIVIAN ALTIPLANO

open access: yesGeophysical Research Letters, 1991
Magnetotelluric (MT) measurements were performed at 9 sites on the northern Bolivian Altiplano in a attempt to determine thicknesses of the Cainozoic sedimentary infill and to characterize the underlying crust. At some of the sites the MT soundings show complications due to static shift effects caused by local, surficial heterogeneities.
/Ritz, Michel   +3 more
openaire   +2 more sources

The Southern Altiplano of Bolivia [PDF]

open access: yes, 2015
Quinoa has been a staple food for Andean populations for millennia. Today, it is a much-appreciated product on the international health-food, organic and fair-trade food markets. Quinoa producers in the southern Altiplano of Bolivia initiated this change approximately 40 years ago.
Alvarez-Flores, Ricardo   +16 more
openaire   +3 more sources

Factores de pérdida de conocimientos de uso de los indicadores climáticos locales en comunidades del Altiplano Norte y Central

open access: yesRevista de Investigación e Innovación Agropecuaria y de Recursos Naturales, 2014
En los últimos años se ha manifestado un fuerte interés en la recuperación de los conocimientos locales de agricultores de los Andes, que, en muchas zonas mantienen y utilizan conocimientos para pronosticar el clima en el corto y mediano plazo con el fin
Jere L. Gilles   +5 more
doaj  

Arsenic in drinking water wells on the Bolivian high plain: field monitoring and effect of salinity on removal efficiency of iron-oxides-containing filters [PDF]

open access: yes, 2010
In the rural areas around Oruro (Bolivia), untreated groundwater is used directly as drinking water. This research aimed to evaluate the general drinking water quality, with focus on arsenic (As) concentrations, based on analysis of 67 samples from about
De Deckere, E   +4 more
core   +1 more source

Una mirada al Altiplano Potosino

open access: yesTEPEXI Boletín Científico de la Escuela Superior Tepeji del Río, 2018
Este trabajo pretende de dar varios significados a los movimientos históricos sucedidos desde el siglo XVI al XXI en el área geográfica conocida como El Salado, considerando su historia entre los distintos polos, una historia análoga a muchos de los pueblos y haciendas que se fueron fundando en este periodo cronológico, que comenzaban siendo pequeñas ...
Rojas García, Jesús   +2 more
openaire   +2 more sources

Farmers' willingness to adopt irrigation for Quinoa (Chenopodium quinoa Willd) in communities of the central altiplano of Bolivia [PDF]

open access: yes, 2011
Quinoa is considered a strategic crop because it is well adapted to the adverse abiotic conditions of the Bolivian Altiplano; however, the average yield is low.
Armando, Mamani   +6 more
core  

Thermo-insulating panels based on Stipa Ichu, cellulose and gypsum for high Andean housing claddings

open access: yesESTOA: Revista de la Facultad de Arquitectura y Urbanismo de la Universidad de Cuenca
The manufacture of construction materials with conventional inputs generates negative impacts on the environment and contributes significantly to energy consumption. Therefore, facing this problem requires new alternatives.
Leyda Cinthia Aza-Medina   +4 more
doaj   +1 more source

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