Results 21 to 30 of about 33,743 (224)
Tecnología y Ciencia, 2022 La reducción electrocatalítica del oxígeno (RRO) es de suma importancia en el funcionamiento de una celda de combustible tipo PEM. Actualmente, la búsqueda de materiales que reemplacen al platino es un objeto de estudio relevante.
Ernesto Schlittler +2 more
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Biología Acuática, 2021 La Cuenca del Altiplano-Puna muestra un grupo particular de peces continentales, cuya diversidad biológica es aún poco conocida. Nuevos registros de especies de Trichomycterus son incorporados al listado de los peces que viven en la Puna Argentina: este ...
Julieta María Andreoli Bize +2 more
doaj +1 more source
Karyotypic variation in the Andean rodent Phyllotis xanthopygus (Waterhouse, 1837) (Rodentia, Cricetidae, Sigmodontinae) [PDF]
, 2014 Phyllotis xanthopygus (Waterhouse, 1837) is an Andean rodent endemic to South America. Despite its wide geographical distribution in Argentina, few individuals have been studied on the cytogenetic level and only through conventional staining.
Cuello, Pablo Andrés +8 more
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Bordos and Boundaries: Sustainable Agriculture in the High Altitude Deserts of Northwest Argentina, AD 850-1532 [PDF]
, 2014 Bordos were essential for the long-term sustainability of agriculture in the high altitude desert of Antofagasta de la Sierra in Northwest Argentina during the Late (AD 850 – 1480) and Inca Period (AD 1480 – 1532).
Lane, Kevin John +2 more
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Resonances and paradoxes of education. Notes to speak on its behalf
Praxis Educativa, 2018 In this work a set of notes that aim to dialogue with some of the questions left by the authors of the Manifesto are presented. Our reflective journey starts from considering that the demand formulated by Biesta and Säfström implies returning to a ...
Jose Alberto Yuni, Claudio Ariel Urbano
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Morphometric analyses and new taxonomic circumscription of South American species of Flourensia (Asteraceae, Heliantheae, Enceliinae) [PDF]
, 2018 Flourensia (Asteraceae, Heliantheae, Enceliinae) is an amphitropical genus of resinous subshrubs, shrubs and small trees with 13 North American and 20 South American species among which disagreement on the species limits of some members still exists.
Aagesen, Lone +3 more
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Neogene woods from Cerro Pampa, Catamarca, Argentina
Revista del Museo Argentino de Ciencias Naturales, 2018 Por primera vez se da a conocer el registro de maderas angiospérmicas de Fabaceae de la localidad de cerro Pampa (catamarca). Estratigráficamente Procedureen de los sedimentos de la Formación chiquimil que pertenece al Grupo Santa María, Integrado por las formaciones San José, Las Arcas, chiquimil, Andalhuala, corral Quemado y Yasyamayo.
Johanna Baez, Alexandra Crisafulli
openaire +2 more sources
Contabilidad, universidad y desarrollo sostenible
Proyecciones, 2021 La responsabilidad social es un tema que ha adquirido relevancia en el contexto académico. La universidad es ella misma una realidad social y su actividad tiene un inevitable impacto en su entorno.
Maria Beatriz Maza +2 more
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Genera of the bee tribe Reedapini (Hymenoptera: Colletidae) [PDF]
, 2020 Those bees classified in the genera Reedapis Michener and Cephalocolletes Michener are discussed and organized into a new tribe, Reedapini Engel.
Engel, Michael S.
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Anales (Asociación Física Argentina), 2021 One of the most important reactions for electrochemical science and technology is the electrocatalytic reduction of oxygen. It is particularly relevant in fuel cells because it is slow to react and requires high overpotentials.
E. N. Díaz +3 more
doaj +1 more source