Resultados de búsqueda - ((("investigador" OR "investigation") OR "investigates") OR "investigar")

  1. 801
  2. 802

    Screens to see the world. Television stereotypes of the mexican indigenous population and the generation of prejudice por Muñiz, Carlos, Saldierna, Alma Rosa, Marañón Lazcano, Felipe de Jesús, Rodríguez, Alba Belinda

    Publicado 2013
    “…The study combined two methods: the first one consisted of the content analysis of fiction TV programmes in order to identify possible stereotypes about Mexico’s indigenous population; the second instrument was a survey applied to high school students of the metropolitan area of Monterrey in order to investigate the relationship between their beliefs and prejudiced attitudes towards indigenous people. …”
    Enlace del recurso
    Artículo
  3. 803

    Revisión de los principales modelos de diseño instruccional por Jardines Garza, Francisco Javier

    Publicado 2011
    “…Esta taxonomía no es la única ni la mejor de las clasificaciones de DI pero sí se puede concluir que es útil para los profesionales, investigadores, diseñadores instruccionales y educadores en el desarrollo de sus actividades educativas.…”
    Enlace del recurso
    Artículo
  4. 804

    Los procedimientos científicos desde la perspectiva docente: una caracterización a partir de un escenario con relevancia pedagógica por Guerra Ramos, María Teresa

    Publicado 2017
    “…In order to argue whether or not a scientific skill was involved, teachers referred to the scientific or non-scientific domain and the investigative or non-investigative purpose. The use of disciplinary knowledge to illustrate their responses was infrequent. …”
    Enlace del recurso
    Artículo
  5. 805

    Does the Impact of Oportunidades Program Increases in Highly Competitive Regions? por Domínguez Viera, Marcos E.

    Publicado 2011
    “…It is employed competitiveness level outcomes to investigate if this social policy has heterogeneous performance in different regions of intervention. …”
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    Artículo
  6. 806

    Elastic surface plasmon polariton scattering: near- and far-field interactions por Segovia Olvera, Paulina, Coello, Víctor

    Publicado 2012
    “…Using a vectorial dipolar model for multiple surface plasmon-polariton (SPP) scattering, we investigate propagation and elastic (in-plane) scattering of SPP's excited in the wavelength range of 543 633 nm at random nanostructured gold surfaces. …”
    Enlace del recurso
    Artículo
  7. 807

    Effect of Glycine on Lead Mobilization, Lead-Induced Oxidative Stress, and Hepatic Toxicity in Rats por Alcaraz Contreras, Yolanda, Garza Ocañas, Lourdes, Carcaño Díaz, Katya, Ramírez Gómez, Xóchitl Sofía

    Publicado 2011
    “…The effect of these treatments on parameters indicative of oxidative stress (glutathione and malondialdehyde levels), the activity of blood δ-aminolevulinic acid dehydratase, and lead concentration in blood, liver, kidney, brain, and bone were investigated. Liver samples were observed for histopathological changes. …”
    Enlace del recurso
    Artículo
  8. 808

    Chemical composition, antimicrobial, and antioxidant activities of orange essential oil and its concentrated oils por Torres Álvarez, Cynthia, Núñez González, A., Rodríguez, J., Castillo, S., Leos Rivas, Catalina, Báez González, Juan Gabriel

    Publicado 2016
    “…In this study, the chemical composition, antimicrobial, and antioxidant activities of orange essential oil (AN), its folded orange oils (5×, 10×, 20×) and d-limonene (LN) were investigated. The results observed in the chemical composition showed a decrease in the major component LN, in contrast to other minor components, which increased their concentration, such as decanal, linalool, and α-terpineol. …”
    Enlace del recurso
    Artículo
  9. 809

    Evaluation of Passive Films on 17-7PH and 410 Stainless Steel Exposed to NaCl Solution por Martínez Aparicio, Brisa Selene, Gaona Tiburcio, Citlalli, Almeraya Calderón, Facundo, Goldsberry, Reece, Castaneda, Homero

    Publicado 2024
    “…The aim of this study is to investigate the effectiveness of passivation treatments on 17-7PH and 410 SS (stainless steel) samples, specifically when performed with citric and nitric acid solutions at 49 °C using an immersion time of 90 min and subsequent exposure in 3.5 wt.% NaCl solution. …”
    Enlace del recurso
    Artículo
  10. 810

    A review of the effects of macroalgae in shrimp feeds and in co-culture por Cruz Suárez, Lucía Elizabeth, Tapia Salazar, Mireya, Nieto López, Martha Guadalupe, Ricque Marie, Denis

    Publicado 2008
    “…Most nutritional studies with seaweed meals or seaweed extracts have investigated low dietary inclusion rates (less than 10%) to establish their possible usefulness as functional (binder effect), nutritional, and nutraceutical (health protective effect) supplements in shrimp feeds. …”
    Enlace del recurso
    Sección de libro.
  11. 811

    Trimetallic nanostructures: the case of AgPd–Pt multiply twinned nanoparticles por Khanal, Subarna, Bhattarai, Nabraj, Velázquez Salazar, J. Jesús, Bahena, Daniel, Soldano, German, Ponce, Arturo, Mariscal, Marcelo M., Mejía Rosales, Sergio, Yacamán, Miguel José

    Publicado 2013
    “…In some nanoparticles, the formation of a hollow structure was also observed, that facilitates the alloying of Ag and Pt in the shell region and the segregation of Ag atoms on the surface, affecting the catalytic activity and stability. We also investigated the growth mechanism of the nanoparticles using grand canonical Monte Carlo simulations, and we have found that Pt regions grow at overpotentials on the AgPd nanoalloys, forming 3D islands at the early stages of the deposition process. …”
    Enlace del recurso
    Artículo
  12. 812

    Revisión de los principales modelos de diseño instruccional (Review of main instruccional design models) por Jardines Garza, Francisco Javier

    Publicado 2011
    “…This taxonomy is not unique nor is the best one of the classifications ID models but it possible to be concluded that he is useful for the professionals, instructional and educating investigators, and designers in the development of its educative activities. …”
    Enlace del recurso
    Artículo
  13. 813

    Revisión de los principales modelos de diseño instruccional (Review of main instruccional design models) por Jardines Garza, Francisco Javier

    Publicado 2011
    “…This taxonomy is not unique nor is the best one of the classifications ID models but it possible to be concluded that he is useful for the professionals, instructional and educating investigators, and designers in the development of its educative activities…”
    Enlace del recurso
    Artículo
  14. 814

    Effect of Spun Velocities and Composition on the R‒phase and Thermomechanical Behavior in Ti‒Ni Ribbons Electrically Heated por Cuéllar, Enrique López, Mendoza, Esaú Nuñez, Araújo, Carlos José de, Walle López, Beatriz Cristina, Otubo, Jorge, González, Cezar Henrique

    Publicado 2016
    “…The effect of wheel velocity, chemical composition and heat treatments are investigated. The characterization of crystallographic phases of the Ti‒Ni ribbons was carried out using X-ray diffraction. …”
    Enlace del recurso
    Artículo
  15. 815

    Detection of Autoantibodies to Vascular Endothelial Growth Factor Receptor-3 in Bile Duct Ligated Rats and Correlations with a Panel of Traditional Markers of Liver Diseases por Duval, Florent, Cruz Vega, Delia Elva, González Gamboa, Ivonne, González Garza y Barrón, María Teresa, Ponz, Fernando, Sánchez, Flora, Alarcón Galván, Gabriela, Moreno Cuevas, Jorge E.

    Publicado 2016
    “…This study aims to detect autoantibodies directed at VEGFR-3 during bile duct ligation- (BDL-) induced cholestatic injury in rat sera and investigate whether they could be associated with traditional markers of liver damage, cholestasis, and fibrosis. …”
    Enlace del recurso
    Artículo
  16. 816

    Characterization of the profile and remuneration of business and management peer reviewers accredited by Minciencias, Colombia por Cruz Páez, Fabio Orlando, Parra Montenegro, Lizeth Valeria, Lechuga Cardozo, Jorge Isaac

    Publicado 2021
    “…A 15-item questionnaire was used for a random sample of 190 evaluator-investigator pairs. It was found that most business and management researchers are junior category and prefer to find out about the calls through social networks for researchers. …”
    Enlace del recurso
    Artículo
  17. 817
  18. 818

    Some Steps in Shrimp Nutrition «a linear way» por G., Cuzon, G., Gaxiola

    Publicado 2010
    “…Shrimp in earthen ponds receive natural productivity as part of their food intake, and techniques with stable isotopes gave values on respective contribution of feed and meiofauna. “Floc”, investigated in the early 80‟s, was another option to promote weight gain at high stocking density, the shrimp being surrounded by kind of an external rumen. …”
    Enlace del recurso
    Artículo
  19. 819

    Characterization of Insulin-Like Peptides and Their Relation to Molt and Metabolism of the Shrimp Litopenaeus vannamei por Gutiérrez, Ana, Nieto, Julie, Pozo, Francisco, VandenBosch, Luc, Van Soest, Sofie, Schoofs, Liliane

    Publicado 2008
    “…On the basisthat common biological function may be related to a similar structure, we searched for an insulin-related substance inthe shrimp Litopenaeus vannamei and further investigated its function. An IGF-I-like molecule was detected inneurosecretory cells of the brain and thoracic ganglion in shrimps at different molt stages. …”
    Enlace del recurso
    Artículo
  20. 820

    Tilapia culture in salt water: environmental requirements, nutritional implications and economic potentials por M. El-Sayed, Abdel-Fattah

    Publicado 2019
    “…The economic potentials oftilapia culture in seawater have also not been well-investigated. However, the available information revealed thatrearing these fishes in saltwater environments can be cost effective, if proper management measurements areadopted.…”
    Enlace del recurso
    Artículo

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