Results 31 to 40 of about 263 (154)

Subterranean environments contribute to three‐quarters of classified ecosystem services

Biological Reviews, Volume 101, Issue 3, Page 1582-1605, June 2026.
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola, David Brankovits, Tiziana Di Lorenzo, Isabel R. Amorim, Raluca Ioana Bancila, Adrià Bellvert, Enrico Bernard, Anna Blomberg, Paulo A.V. Borges, Martina Cappelletti, Rodrigo Lopes Ferreira, Rosalina Gabriel, Diana M. P. Galassi, Laura Garzoli, Vasilis Gerovasileiou, Grant C. Hose, Kathryn L. Korbel, Simone Martino, Ana Z Miller, Nataša Mori, Veronica Nanni, Giuseppe Nicolosi, Mattia Saccò, Troy S. Sakihara, Marconi Souza Silva, Anne E. Tamalavage, Maja Zagmajster, Efraín Chávez, Christian Griebler, Pedro Cardoso, Alejandro Martínez   +30 more
wiley   +1 more source

Origen y movilidad del talio en la Faja Pirítica Ibérica

Estudios Geologicos
El talio (Tl) es un elemento no esencial para los seres vivos y un metal ubicuo en la corteza terrestre, con una concentración media de alrededor de 0.5 mg/kg.
Rafael León, Carlos R. Cánovas, M. Dolores Basallote, Francisco Macías, Ricardo Millán-Becerro, Raúl Moreno-González, Jonatan Romero-Matos, José Miguel Nieto   +7 more
doaj   +1 more source

Informe de las labores del Instituto Geológico Nacional en el mes de mayo de 1953

Boletín Geológico, 1953
El informe presenta las labores realizadas en mayo de 1953 y contine los siguientes apartados: 1) informe sobre el fesdespato situado en Sabaneta, Antioquia, en el cual, a partir de una separación magnética y de una flotación se puede obtener feldespato
Jesús Bueno
doaj   +1 more source

Evaluating the sustainability of mineral water consumption using multi‐scale hydrogeophysics in Caxambu, Brazil

Near Surface Geophysics, Volume 24, Issue 3, Page 234-251, June 2026.
Abstract A better understanding of the near‐surface aquifer system of the Caxambu Water Park, located in the Minas Gerais State, Brazil, has been achieved. The study aimed to identify groundwater reservoirs and flow patterns and contribute to the hydrogeological conceptual model using a multi‐scale geophysical approach.
Emanuele F. La Terra, Miguel Tupinambá, Liliane P. Panetto, José Antonio N. Pereira, Tainã P. Oliveira, Antonio Carlos Pedrosa‐Soares   +5 more
wiley   +1 more source

Phylogenetic analysis and the recognition of a new genus for Mexican Crassulaceae segregated from Echeveria

TAXON, Volume 75, Issue 3, June 2026.
Abstract Systematic knowledge of the Mexican Crassulaceae is slowly progressing as data from new DNA regions and species sampling efforts increase. We compiled and generated new rbcL, matK, rps16, ITS/ITS2, and ETS DNA sequences and performed an updated phylogenetic reconstruction for a group of 131 Mexican Crassulaceae terminals from 11 of the 13 ...
Luis Emilio de la Cruz‐López, David Espinosa   +1 more
wiley   +1 more source

Corrosión electroquímica de medios de molienda y efecto de aniones presentes en aguas industriales

Revista de Metalurgia, 2001
El acero utilizado como medios de molienda (bolas o barras) en el procesamiento de minerales, es una materia prima importante desde el punto de vista de costo del proceso.
Luis Magne, Patricio Navarro, Cristian Vargas, Sergio Carrasco   +3 more
doaj   +1 more source

Exiled From Their Own Lands: Indigenist Policies, Oil, and Colonial Plunder in 20th Century Venezuela

The Journal of Latin American and Caribbean Anthropology, Volume 31, Issue 2, June 2026.
ABSTRACT This article examines the historical displacement of Indigenous peoples in Venezuela, focusing on the links between indigenist policies and the exploitation of natural resources, particularly oil, throughout the 20th century. Using a combined historical and ethnographic approach, it demonstrates how the formation of the Venezuelan nation‐state
Gabriel Tardelli
wiley   +1 more source

Estrategias para la remoción de calcio y magnesio de las aguas del proceso de flotación de sulfuros complejos

Epistemus
La minería está estrechamente relacionada con el uso del agua, ya que es fundamental para la operación de sus procesos. En respuesta a la necesidad de preservar este recurso, se han desarrollado prácticas para reducir el consumo de agua fresca en los ...
Sandra Daniela Ojeda Villegas, Alejandro Uribe Salas, Noemí Ortiz Lara   +2 more
doaj   +1 more source

DESULFURACIÓN DE RELAVE MEDIANTE LA FLOTACIÓN DE SULFUROS DE HIERRO

Holos, 2015
En Chile la minería se desarrolla principalmente en  la concentración de cobre, molibdeno, oro y plata, mediante el proceso de flotación. Este genera grandes tonelajes de relaves que contienen diversas minerales, principalmente pirita.
Luis Valderrama Campusano, B. Zazzali, J. Chamorro, M. Santander   +3 more
doaj   +1 more source

Annual Variation in Stallion Testicular Measurements and Its Association With Hormonal Profiles and Semen Quality

Reproduction in Domestic Animals, Volume 61, Issue 6, June 2026.
ABSTRACT In a stallion breeding‐soundness examination, testicular volume may be estimated either from total scrotal width or by measuring the height, width and length of both testes. This study aimed to determine whether testicular morphometric parameters obtained by ultrasonography fluctuate throughout the year, and whether these variations affect ...
T. R. C. Braga, M. L. Freitas, D. M. V. Martins, M. A. O. Viu, R. A. Oliveira   +4 more
wiley   +1 more source