Results 51 to 60 of about 91,671 (192)
Journal of Metamorphic Geology, Volume 43, Issue 4, Page 341-358, May 2025.ABSTRACT The reactive flow of melt through the mantle or crust triggers chemical disequilibrium, driving reactions that significantly alter the mineral assemblages and physical properties of host rocks. However, the degrees of chemical difference required to initiate these reactions and their timescale remain poorly understood.
Robyn L. Gardner +4 more
wiley +1 more source
Marcadores de estrés oxidativo en hipertensión leve
Anales de la Facultad de Medicina, 2007 Introducción: La hipertensión es un factor de riesgo cardiovascular y en 90% de los casos se desconoce el mecanismo que la inicia. Recientemente, se considera que la hipertensión es un síndrome de anormalidades metabólicas y estructurales, en el que las ...
Raquel Oré +5 more
doaj
Manejo de la acidez y encalamiento de los suelos [PDF]
, 2017 Strategies for managing the problem of soil acidity without making massive lime applications are proposed. The 1st strategy consists of the addition of lime to reduce Al saturation, taking into account 3 basic considerations: dose determination ...
Ortega, J.
core
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 3, March 2025.Abstract We describe and compare two outcrops of pyroxenite associated with Neoproterozoic ophiolite sequences in the Eastern Desert of Egypt: small masses in the Abu Samuki area of the North Eastern Desert and large belts in the Wadi El‐Mireiwa area of the South Eastern Desert.
Hussam A. Selim +7 more
wiley +1 more source
Descripción y aprovechamiento del yacimiento de magnesitas de Rubián (Lugo) [PDF]
, 1983 [Resumen] Desde el año 1961, fecha de constitución de la empresa, las investigaciones realizadas han dado lugar a una valoración de 35.000.000 Tm de reservas de las que se extraen anualmente 120.000.
Cerro Gómez, José del
core +1 more source
Geological Journal, Volume 60, Issue 2, Page 560-581, February 2025.This study identifies a two‐stage metamorphism in the Western Dharwar Craton using Raman spectra of carbonaceous material (RSCM) thermometry, and analysis of metamorphic mineral chemistry. These findings are linked with the micro to regional‐scale structural evolution of the region, providing insights into how low‐grade metamorphism contributes to ...
Lakshmanan Sreehari +7 more
wiley +1 more source
Salud Pública de México, 2012 OBJECTIVE: To describe the micronutrient nutritional status of a national sample of 1-11 year old Mexican children surveyed in 2006 in National Health and Nutrition Survey (ENSANUT 2006) and their association with dietary and sociodemographic factors ...
Ma. del Carmen Morales-Ruán +6 more
doaj
¿Magnesio para todo? Implicaciones anestésicas
Revista Electrónica de AnestesiaR, 2013 El magnesio es esencial para la vida e interviene en más de 300 reacciones enzimáticas (fosforilación oxidativa, glicolisis, metabolismo de nucleótidos, síntesis de proteínas).
María del Rocío Jiménez Tortosa
doaj +1 more source
Procedimiento de Obtención de un Material Cerámico de Forsterita [PDF]
, 2016 Número de publicación: ES2345648 A1 (28.09.2010) También publicado como: ES2345648 B2 (21.07.2011 Número de Solicitud: Consulta de Expedientes OEPM (C.E.O.) P200900844(27.03.2009)Procedimiento de obtención de un material cerámico de forsterita ...
Bono Barrón, Rafael +4 more
core
Insights Into Mantle Plume Geochemistry From Machine Learning
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 1, January 2025.Abstract Oceanic island basalts are the products of mantle plume melting and their chemistry provides insights into the Earth's deep interior. We report a statistical and machine learning study of 8 radiogenic isotopes and 19 incompatible trace element ratios in basalts from 27 oceanic island volcanic chains associated with mantle plumes compiled from ...
William M. White +2 more
wiley +1 more source