Results 11 to 20 of about 79,347 (159)

Transition Metal Complexes with Tridentate Schiff Bases (O N O and O N N) Derived from Salicylaldehyde: An Analysis of Their Potential Anticancer Activity

ChemMedChem, Volume 17, Issue 20, October 19, 2022., 2022
The search for more effective and selective metal‐based anticancer drugs with fewer side effects has been an area of continuous exploration. This has led to the exploration of a wide range of metals from the periodic table, mainly from the d‐block, as well as a wide variety of organic ligands, preferably with proven biological activity.
Luis A. Alfonso‐Herrera, Sharon Rosete‐Luna, Delia Hernández‐Romero, José M. Rivera‐Villanueva, José L. Olivares‐Romero, J. Antonio Cruz‐Navarro, Anell Soto‐Contreras, Antonino Arenaza‐Corona, David Morales‐Morales, Raúl Colorado‐Peralta   +9 more
wiley   +1 more source

Cuerpos de cobre: Extractivismo en Chuquicamata, Chile

The Journal of Latin American and Caribbean Anthropology, Volume 26, Issue 2, Page 200-218, June 2021., 2021
Resumen ¿Qué extraen y qué producen los extractivismos? El presente artículo intenta responder a esta pregunta analizando críticamente, la relación entre cuerpos, trabajo y mi‐nería principalmente bajo el modelo neoliberal chileno, en la mina estatal de cobre a tajo abierto más grande del planeta: Chuquicamata.
Marina Weinberg
wiley   +1 more source

La autonomía universitaria como legado de la reforma de córdoba

Journal of the Academy, 2019
A cien años de la Reforma Universitaria de 1918, mejor conocida como Reforma de Córdoba, las universidades públicas latinoamericanas tienen importantes retos y perspectivas por delante.
Henning Jensen Pennington
doaj   +1 more source

Del repudio a los malos profesores a la emancipación social. Los reclamos de los estudiantes porteños (1872-1930)

Archivos de Historia del Movimiento Obrero y la Izquierda, 2018
El artículo recorre los primeros reclamos de los estudiantes de la ciudad de Buenos Aires por una “reforma universitaria”, desde la fundación en 1872 de la Asociación 13 de diciembre hasta la articulación en 1918 del movimiento político-cultural de la ...
Natalia Bustelo
doaj   +1 more source

Próximo número

Revista +E, 2017
Tema: “Extensión universitaria: agendas, debates y desafíos a 100 años de la Reforma Universitaria”
+E Revista de Extensión Universitaria
doaj   +1 more source

For a history of Brazilian higher education evaluation: analysis of PARU, CNRES, GERES and PAIUB documents [PDF]

, 2008
Com o Provão, em 1996, e depois com o SINAES, em 2004, a avaliação passou a ser um elemento central na política de educação superior brasileira. Apesar das influências dos modelos internacionais as duas principais concepções adotadas (a da avaliação com ...
BARREYRO, Gladys Beatriz, ROTHEN, José Carlos   +1 more
core   +2 more sources

Effect of the Noble Metals Addition on the Oxidation Behavior of Ni3Al

Advances in Materials Science and Engineering, Volume 2018, Issue 1, 2018., 2018
This paper discusses the effect of the addition of noble metals on the microstructure, mechanism, and oxidation kinetics of the Ni3Al intermetallic alloy. Ni3Al was doped with 1% (atomic percent) of Au, Ag, Pd, and Pt. Oxidation behavior of the alloys was evaluated at 900, 1000, and 1100°C in O2 for 24 hours.
J. J. Ramos-Hernandez, J. Porcayo-Calderon, J. G. Gonzalez-Rodriguez, Jan Mayén, G. Lara-Rodriguez, V. M. Salinas-Bravo, L. Martinez-Gomez, Amit Bandyopadhyay   +7 more
wiley   +1 more source

Application of an Activated Carbon‐Based Support for Magnetic Solid Phase Extraction Followed by Spectrophotometric Determination of Tartrazine in Commercial Beverages

International Journal of Analytical Chemistry, Volume 2015, Issue 1, 2015., 2015
A method is presented for magnetic solid phase extraction of tartrazine from nonalcoholic beverages. The method involves the extraction and clean‐up by activated carbon covered with magnetite dispersed in the sample, followed by the magnetic isolation and desorption of the analyte by basified methanol.
José A. Rodríguez, Karen A. Escamilla-Lara, Alfredo Guevara-Lara, Jose M. Miranda, Ma. Elena Páez-Hernández, Faezeh Khalilian   +5 more
wiley   +1 more source

Evaluation of Natural Materials as Exogenous Carbon Sources for Biological Treatment of Low Carbon‐to‐Nitrogen Wastewater

BioMed Research International, Volume 2015, Issue 1, 2015., 2015
In the bacterial processes involved in the mitigation of nitrogen pollution, an adequately high carbon‐to‐nitrogen (C : N) ratio is key to sustain denitrification. We evaluated three natural materials (woodchips, barley grains, and peanut shells) as carbon sources for low C : N wastewater.
Juan Ramírez-Godínez, Icela Beltrán-Hernández, Alejandro Álvarez-Hernández, Claudia Coronel-Olivares, Elizabeth Contreras-López, Maribel Quezada-Cruz, Gabriela Vázquez-Rodríguez, Eldon R. Rene   +7 more
wiley   +1 more source

Seasonal Changes of Fish Assemblages in a Subtropical Lagoon in the SE Gulf of California

The Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
The composition and seasonal changes of the fish assemblage in a coastal lagoon system in southeastern Gulf of California were assessed from December 2001 to July 2005. A total of 20,877 organisms belonging to 191 species and 47 families were analyzed. We determined that almost all the species inhabiting the system were found; however some rare species
F. Amezcua, F. Amezcua-Linares, P. Cardoso, J. H. Janse, P. Kaitaniemi, M. H. Schaus   +5 more
wiley   +1 more source