Results 1 to 10 of about 17,990 (247)

Comparación en la calidad de huevos obtenidos en un sistema de producción en corrales al aire libre y los producidos en un sistema de jaula

Revista Mexicana de Ciencias Pecuarias, 2022
México es el principal consumidor de huevo a nivel mundial con más de 23.22 kg de huevo per capita al año. En años recientes se han diversificado los sistemas de producción con la introducción de sistemas que promueven el bienestar animal.
Samantha Romo, Daniela López, Nestor Ledesma, Carlos Gutiérrez, Antonio Quintana, Lucía Rangel   +5 more
doaj   +1 more source

Caribbean Corals in Crisis: Record Thermal Stress, Bleaching, and Mortality in 2005 [PDF]

, 2015
BACKGROUND The rising temperature of the world's oceans has become a major threat to coral reefs globally as the severity and frequency of mass coral bleaching and mortality events increase.
Alvarez-Filip, Lorenzo, Baca, Bart, Bartels, Erich, Bastidas, Carolina, Bouchon, Claude, Brandt, Marilyn, Bruckner, Andrew W., Bunkley-Williams, Lucy, Cameron, Andrew, Causey, Billy D., Chiappone, Mark, Christensen, Tyler R. L., Crabbe, M. James C, Day, Owen, de la Guardia, Elena, DiResta, Daniel, Díaz-Pulido, Guillermo, Eakin, C. Mark, Gil-Agudelo, Diego L., Gilliam, David S., Ginsburg, Robert N., Gore, Shannon, Guzmán, Héctor M., Hendee, James C., Hernández-Delgado, Edwin A., Heron, Scott F., Husain, Ellen, Jeffrey, Christopher F. G., Jones, Ross J., Jordán-Dahlgren, Eric, Kaufman, Les S., Kline, David I., Kramer, Philip A., Lang, Judith C., Lirman, Diego, Liu, Gang, Mallela, Jennie, Manfrino, Carrie, Marks, Ken, Maréchal, Jean-Philippe, Mihaly, Jennifer, Miller, W. Jeff, Morgan, Jessica A., Mueller, Erich M., Muller, Erinn M., Orozco Toro, Carlos A., Oxenford, Hazel A., Ponce-Taylor, Daniel, Quinn, Norman, Ramírez, Alberto Rodríguez, Ritchie, Kim B., Roberson, Kimberly Woody, Rodríguez, Sebastián, Romano, Sandra, Samhouri, Jameal F., Schmahl, George P., Shank, Burton V., Skirving, William J., Smith, Tyler B., Steiner, Sascha C. C., Sánchez, Juan A., Villamizar, Estrella, Walsh, Sheila M., Walter, Cory, Weil, Ernesto, Williams, Ernest H., Yusuf, Yusri   +66 more
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Paternal advanced age and sperm quality are indicators for Preimplantation Genetic Testing in egg donation cycles

Clinical and Experimental Obstetrics & Gynecology, 2021
Background: A wide variety of studies demonstrate the influence of the oocyte source’s age on the success of assisted reproduction treatments; however, the effect of paternal age has been studied to a lesser extent.
Jeimy Pedraza, Hugo Sierra, Jacqueline Cordero, Esther López-Bayghen   +3 more
doaj   +1 more source

On vanishing theorems for Higgs bundles [PDF]

, 2014
We introduce the notion of Hermitian Higgs bundle as a natural generalization of the notion of Hermitian vector bundle and we study some vanishing theorems concerning Hermitian Higgs bundles when the base manifold is a compact complex manifold.
Cimat A. C, Gto México, S. A. H. Cardona, Via Jalisco S/n   +3 more
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Priority sites for wildfowl conservation in Mexico [PDF]

, 2005
A set of priority sites for wildfowl conservation in Mexico was determined using contemporary count data (1991–2000) from the U.S. Fish & Wildlife Service mid-winter surveys.
A. Pérez-Arteaga, Abraham K. F., Allen G. T., Ankney C. D., Arizmendi M. C., Austin J. E., Banks R. C., Beauchamp W. D., Bellrose F. C., BirdLife International, Carrera E., CONABIO, Cooke F., Custer C. M., Delany S., Drewien R. C., Ducks Unlimited, Ducks Unlimited, E. Carrera, Ely C. R., Engilis A., Fling P. L., ILOG, K. J. Gaston, Lyons J., Migoya R., Migoya R., Migoya R., Miller M. R., Mitchell C. A., Onuf C. P., Ortega-Rubio A., Page G. W., Palacios E., Ramsar Bureau, Reed A., S. F. Jackson, Scott D. A., SEMARNAT, Stroud D. A., USDI, USDI, USFWS, Ward D. H., Wilkins K. A., Williams B. K., Wilson M. H., Wilson U. W.   +47 more
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Intercepción de lluvia en bosques de montaña en la cuenca del río Texcoco, México

Revista Mexicana de Ciencias Forestales, 2017
El proceso de intercepción de lluvia por la masa arbórea, como componente del ciclo hidrológico en áreas forestales, está determinado, entre otras causas, por las condiciones climáticas, orográficas y por las características de la vegetación. Se
Eulogio Angel Flores Ayala, Vidal Guerra De la Cruz, Gerardo H. Terrazas González, Fernando Carrillo Anzures, Fabián Islas Gutiérrez, Miguel Acosta Mireles, Enrique Buendía Rodríguez   +6 more
doaj   +1 more source

Population trends and priority conservation sites for Mexican Duck Anas diazi [PDF]

, 2002
Little is known about Mexican Duck Anas diazi biology and populations. We analyse long-term (1960–2000) trends of Mexican Duck numbers in Mexico and employ contemporary count data (1991–2000) from the U.S.
Gaston, K.J., Kershaw, M., Perez-Arteaga, A.   +2 more
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Organización social ejidal y manejo del capital natural forestal maderable en Carbonero-Jacales, Huayacocotla, Veracruz

Revista Mexicana de Ciencias Forestales, 2017
Los bosques de México y del mundo han sufrido un deterioro significativo en las últimas décadas como resultado de políticas públicas inadecuadas, aplicación incorrecta de los programas de manejo forestal, deforestaciones producto de diversas ...
Domingo Romo Guzmán, Esteban Valtierra Pacheco, Manuel de Jesús González Guillén, José René Valdez Lazade, Rufino Vivar Miranda   +4 more
doaj   +1 more source

A low complexity iterative channel estimation and equalisation scheme for (data-dependent) superimposed training [PDF]

, 2006
Channel estimation/symbol detection methods based on superimposed training (ST) are known to bemore bandwidth efficient than those based on traditional time-multiplexed training.
Alameda-Hernandez, E., Lara, M.M., McLernon, D.C., Moosvi, S.M.A., Orozco-Lugo, A.G.   +4 more
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¿Vestuario o agencia? Representación de género en cinco videojuegos de acción de la séptima generación [PDF]

, 2019
This work conducted a quantitative study of gender representation in five top-selling multiplatform action video games leading in sales of the seventh generation, through the technique of content analysis.
Corona, Antonio
core   +2 more sources