Results 41 to 50 of about 1,389,002 (203)

Recursos minerales en Nicaragua

open access: yesRevista Geológica de América Central, 2011
This report gives information about the main mining districts in Nicaragua, both metalica and nonmetalics, with emphasis in gold-silver deposits. lt presents tables and maps of industrial reserves, geographycal location, geological framework and production database of the Nicaraguan minig sector.
openaire   +3 more sources

Harnessing metallurgical slags for water treatment: Advances in organic pollutant degradation with and without hydrogen generation, and in heavy metal removal

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Valorization of ferrous and non‐ferrous metallurgical slags for water treatment: modification routes and applications in advanced oxidation, electrochemical processes, and adsorption within a circular economy framework. Abstract The removal of recalcitrant organic pollutants and heavy metals from water remains a critical challenge for safe drinking ...
Flor‐Tania Escárcega‐Olivares   +2 more
wiley   +1 more source

Synthesis and application of alginate@CuFe2O4 polymeric spheres in 17‐β‐estradiol adsorption processes in Amazonian rivers

open access: yesPolymer International, EarlyView.
Magnetic alginate beads, functionalized with copper ferrite, effectively remove 17‐β‐estradiol from Amazonian water, exhibiting optimized 238.65 μg g−1 capacity, fast 40 min kinetics, easy recovery, and successful remediation. Abstract The presence of endocrine‐disrupting compounds, such as 17‐β‐estradiol, in aquatic ecosystems poses a significant ...
Dante S Silva   +10 more
wiley   +1 more source

Un mapa geológico inédito de Ceuta de Máximo Laguna y Luis Satorras (1861)

open access: yesGeogaceta, 2021
En la biblioteca del Ministerio de Defensa se conserva un ejemplar de un mapa manuscrito titulado “Croquis geológico de Montes de Sierra Bullones a escala 1:20.000”, firmado por los ingenieros de montes Máximo Laguna y Luis Satorras, en 1861 y que había
Ester Boixereu Vila   +1 more
doaj   +1 more source

Wild edible fruits of Mozambique: Biodiversity hotspots and priority species for food security and sustainable development

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Wild edible fruits (WEFs) are an important but underutilised resource for improving food security in sub‐Saharan Africa. In Mozambique, many rural communities rely on these fruits to supplement diets, generate income and cope with periods of food scarcity, yet national‐level knowledge of their diversity has been lacking.
Miguel Brilhante   +6 more
wiley   +1 more source

Elementos del grupo del platino y sus minerales. Modelos de depósitos en la Argentina y en el mundo [PDF]

open access: yes, 2007
Fil: Villar, Luisa María. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina.Fil: Segal, Susana J. Servicio Geológico Minero Argentino (SEGEMAR).
Villar, Luisa María, Segal, Susana J.
core   +1 more source

Extractivismo y desarrollo: los recursos minerales en México

open access: yesProblemas del Desarrollo, 2014
ResumenLatinoamérica es una de las regiones con mayor abundancia de recursos naturales y se constituye como uno de los principales destinos de privatización y mercantilización de bienes a manos de trasnacionales con la anuencia de los propios estados.
Aleida Azamar, José Ignacio Ponce
openaire   +3 more sources

Sensitivities of sage‐grouse to weather and climate: Implications for indicator species in a moisture‐limited ecosystem Sensibilidades del gallo de las artemisas al clima y las condiciones meteorológicas: implicaciones para una especie indicadora de ecosistemas limitados por la humedad

open access: yesWildlife Monographs, EarlyView.
Abstract Sage‐grouse (Centrocercus spp.) are considered an indicator species for sagebrush ecosystems but are declining range‐wide, resulting from a suite of anthropogenic threats that are reducing habitat availability and quality throughout the sagebrush biome.
Carl G. Lundblad   +7 more
wiley   +1 more source

Base de Datos de Depósitos Minerales Portadores de Cu-Pb-Zn-Ag de la República Argentina

open access: yes, 2011
Fil: Zappettini, E.O. Servicio Geológico Minero Argentino. Instituto de Geología y Recursos Minerales; Argentina.Fil: Crosta, S. Servicio Geológico Minero Argentino. Instituto de Geología y Recursos Minerales; Argentina.Fil: Godeas, M.C.
Lamarée, Robert   +6 more
core   +1 more source

Monospecific cover crops perpetuate soil biotic homogenization in croplands across diverse soils

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Croplands are known to support significant soil biotic homogenization. Cover crops are commonly used as a sustainable agriculture practice; however, many times these cover crops are composed of single‐species.
Sibo Shi   +8 more
wiley   +1 more source

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