Results 41 to 50 of about 5,749 (186)

Percepción de estudiantes de Trabajo Social sobre derechos humanos en Chile

Alternativas
Introducción. En 2023, Chile conmemoró 50 años de la dictadura cívico-militar en medio de un contexto de profunda relativización y negacionismo de los derechos fundamentales.
Cory Duarte Hidalgo, Alfredo García-Carmona, Alejandra Mora Castillo, Viviana Rodríguez Venegas   +3 more
doaj   +1 more source

Green Transition, Extractive Continuities: Lithium Mining and the Environmental Contradictions of Sustainability

Sustainable Development, EarlyView.
ABSTRACT Global decarbonization has positioned lithium as a strategic mineral for electric vehicles, battery storage, and low‐carbon development. Yet its extraction raises serious environmental, political, and justice concerns that complicate dominant narratives of clean energy progress.
Jacob Kwakye
wiley   +1 more source

Determinación de la intención de uso de tablets en alumnos de educación superior: Una aproximación desde la teoría del comportamiento planificado

Revista Electrónica Educare
Objetivo. El objetivo de esta investigación es determinar si los factores subyacentes de la intención influyen en el uso de las tablets en estudiantes de Educación Superior, mediante el uso de la teoría del comportamiento planificado. Metodología.
Rafael Figueroa-Ortega, Carlos Galleguillos-Cortés, Fernanda Figueroa-Guzmán, Carmen Segovia-Erazo   +3 more
doaj   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

Integrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez, Santiago Hernández Del Pino, Esperanza Cerdeño, Manuel Hernández Fernández, Laura Domingo   +4 more
wiley   +1 more source

Atacama Compact Array Correlator for Atacama Large Millimeter/submillimeter Array

, 2011
6 pages, 4 figures, 2010 Asia-Pacific Radio Science Conference in Toyama, Japan on September 22-26, 2010 Commission J: Radio Astronomy J2 Millimeter- and Sub-millimeter-wave Telescope and ...
Okumura, Sachiko K., Chikada, Yoshihiro, Kamazaki, Takeshi, Okuda, Takeshi, Kurono, Yasutaka, Iguchi, Satoru   +5 more
openaire   +2 more sources

Thermal histories of El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155): Implications for the diversity of IAB‐ungrouped iron meteorites and their parent bodies

Meteoritics &Planetary Science, EarlyView.
Abstract This study provides the first petrographic, crystallographic, and chemical comparison between El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155), two particular IAB‐ungrouped iron meteorites. Both contain exceptionally large graphite nodules and “flowers”, providing unique insights into carbon behavior in metallic melts and cooling ...
L. Perez, M. Roskosz, F. Danoix, L. Kern, V. Megevand, C. Brillatz, B. Devouard, J. Gattacceca, M. Gounelle   +8 more
wiley   +1 more source

THE ATACAMA COSMOLOGY TELESCOPE: DATA CHARACTERIZATION AND MAPMAKING [PDF]

The Astrophysical Journal, 2012
We present a description of the data reduction and mapmaking pipeline used for the 2008 observing season of the Atacama Cosmology Telescope (ACT). The data presented here at 148 GHz represent 12% of the 90 TB collected by ACT from 2007 to 2010. In 2008 we observed for 136 days, producing a total of 1423 hours of data (11 TB for the 148 GHz band only ...
Dünner, Rolando, Hasselfield, Matthew, Marriage, Tobias A., Sievers, Jon, Acquaviva, Viviana, Addison, Graeme E., Ade, Peter A. R., Aguirre, Paula, Amiri, Mandana, Appel, John William, Barrientos, L. Felipe, BATTISTELLI, Elia Stefano, Bond, J. Richard, Brown, Ben, Burger, Bryce, Calabrese, Erminia, Chervenak, Jay, Das, Sudeep, Devlin, Mark J., Dicker, Simon R., Doriese, W. Bertrand, Dunkley, Joanna, Essinger Hileman, Thomas, Fisher, Ryan P., Gralla, Megan B., Fowler, Joseph W., Hajian, Amir, Halpern, Mark, Hernández Monteagudo, Carlos, Hilton, Gene C., Hilton, Matt, Hincks, Adam D., Hlozek, Renée, Huffenberger, Kevin M., Hughes, David H., Hughes, John P., Infante, Leopoldo, Irwin, Kent D., Juin, Jean Baptiste, Kaul, Madhuri, Klein, Jeff, Kosowsky, Arthur, Lau, Judy M., Limon, Michele, Lin, Yen Ting, Louis, Thibaut, Lupton, Robert H., Marsden, Danica, Martocci, Krista, Mauskopf, Phil, Menanteau, Felipe, Moodley, Kavilan, Moseley, Harvey, Netterfield, Calvin B., Niemack, Michael D., Nolta, Michael R., Page, Lyman A., Parker, Lucas, Partridge, Bruce, Quintana, Hernan, Reid, Beth, Sehgal, Neelima, Sherwin, Blake D., Spergel, David N., Staggs, Suzanne T., Swetz, Daniel S., Switzer, Eric R., Thornton, Robert, Trac, Hy, Tucker, Carole, Warne, Ryan, Wilson, Grant, Wollack, Ed, Zhao, Yue   +73 more
openaire   +8 more sources

REMOCIÓN DE IONES COBRE Y NIQUEL CON CÁSCARA DE MANÍ

Holos, 2018
En el presente trabajo se estudió la remoción de iones cobre y níquel utilizando cáscaras de maní mediante pruebas en lote en sistemas monocomponente y bicomponente (pruebas de remoción simultánea). En este estudio se evaluó el efecto de las variables pH,
Patricia Tapia, Osvaldo Pavez, Natali Garrido, Bernardo Sepúlveda   +3 more
doaj   +1 more source

Digitising biological collections to advance National Species Inventories: A case study from the flora of Chile

PLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1210-1222, July 2026.
In response to Chile's public policy to establish a national biodiversity inventory and monitoring system, we launched the HerbarioDigital.cl portal. We have digitised over 120,000 specimens representing more than 3,900 species from two Chilean herbaria, integrating them through a curated local taxonomic index.
Ricardo A. Segovia, Juan M. Sáez, Francisco A. Squeo, Alicia E. Marticorena, Julián Caro, Pablo C. Guerrero   +5 more
wiley   +1 more source

Digital Spectro-Correlator System for the Atacama Compact Array of the Atacama Large Millimeter/Submillimeter Array [PDF]

Publications of the Astronomical Society of Japan, 2012
Abstract We have developed an FX-architecture digital spectro-correlator for the Atacama Compact Array of the Atacama Large Millimeter/submillimeter Array. The correlator is able to simultaneously process four pairs of dual polarization signals with a bandwidth of 2 GHz, which are received by up to sixteen antennas. It can calculate auto-
Kamazaki, T., Okumura, S. K., Chikada, Y., Okuda, T., Kurono, Y., Iguchi, S., Mitsuishi, S., Murakami, Y., Nishimuta, N., Mita, H., Sano, R.   +10 more
openaire   +2 more sources