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Mostrando ítems 11-20 de 43
Oxygen Reduction on Carbon-Supported Metallophthalocyanines and Metalloporphyrins
(2018)
MN4 macrocyclic metal complexes have been studied for many years as potential catalysts for the O2 reduction reaction (ORR) in order to replace costly Pt and Pt group metals from the cathode of fuel cells. These macrocyclic ...
An attempt to determine the microwave paleointensity on historic ParicutZapotitlánn volcano lava flows, Central Mexico
(2003)
We report a preliminary rock-magnetic and microwave paleointensity study of historic lava flows between 1943 and 1948 of ParicutZapotitlánn volcano. These lava flows show well-preserved, well-exposed, fresh and extensive ...
An attempt to determine the microwave paleointensity on historic Paricutín volcano lava flows, Central Mexico
(2003)
We report a preliminary rock-magnetic and microwave paleointensity study of historic lava flows between 1943 and 1948 of Paricutín volcano. These lava flows show well-preserved, well-exposed, fresh and extensive outcrops. ...
Investigação de biomarcadores presentes em diferentes graus de meningioma por análises metabolômicas
(Universidade Estadual Paulista (Unesp), 2021-10-19)
Os meningiomas representam o tipo de tumor primário intracraniano mais comum,
abrangendo cerca de 36% dos casos. São classificados pela Organização Mundial da Saúde em
tumores graus I, II ou III de acordo com seu grau ...
Geochemical Characterization of the Calacoa Geothermal Zone
(ElsevierNL, 2013)
The Calacoa geothermal zone (CGZ) is located in the western Cordillera of the Andes in southern Peru, approximately 10 km on the western slope of Ticsani Volcano. In Calacoa there are mainly volcanic rocks that have been ...
The mesoproterozoic basement at the San Rafael Block, Mendoza Province (Argentina): Geochemical and isotopic age constraints
(Springer, 2017)
This work provides new petro-geochemical and isotopic information to constrain the crustal evolution of the Precambrian Cerro La Ventana Formation. The Rb–Sr, Sm–Nd, Pb–Pb, and U–Pb isotopic data obtained as well as their ...
Tree canopy composition in the tropical mountain rainforest of los Tuxtlas, Mexico
(Universidad de Costa Rica, 2008)
La deposición de cenizas volcánicas modula la descomposición de hojarasca en bosques de Nothofagus dombeyi del norte de PatagoniaVolcanic ash deposition modulates leaf-litter decomposition in Nothofagus dombeyi forests of NW Patagonia
(Asociación Argentina de Ecología, 2018-04)
Los disturbios generados por erupciones volcánicas son parte de la dinámica natural de los ecosistemas. La formación de suelo y el reciclado de nutrientes dependen de la descomposición tanto de la materia orgánica enterrada ...