Resultados de búsqueda - IT*

  1. 2161

    Ecología y fisiología en las primeras fases de crecimiento de plantas suculentas en el sur del desierto chihuahuense en México y las montañas de Córdoba en Argentina. por Pérez Sánchez, Reyes Manuel

    Publicado 2018
    “…Specifically, in this study we measured the variables related to chlorophyll fluorescence: Effective quantum yield of photosystem II (ΦPSII) and electron transport rate (ETR), as well as relative growth rate (RGR) and its components (net assimilation rate, NAR, and proportion of leaf or photosynthetic area, LAR), root to shoot ratio (R/S) and relative water content (RWC), for seedlings transplanted under nurse plants and seedlings transplanted under direct sunlight. …”
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  2. 2162

    Modelo de resiliencia para el no consumo de alcohol en escolares de zona rural. por Candia Arredondo, Josefina Sarai

    Publicado 2018
    “…Se utilizó una cedula de datos personales, así como seis instrumentos; la escala de Evaluación de las Relaciones Intrafamiliares ERI (Rivera & Andrade, 2006; 2010) reportó un Alpha de Cronbach de .76; Cuestionario de Apoyo Social percibido para niños MOS-A (Rodríguez 2011), con un Alpha de Cronbach de .86; Escala de Afrontamiento para Niños EAN (Morales et al. 2012) con un Alpha de Cronbach de .81; Escala de Percepción de Riesgo EPR (Benthin, Slovic & Severson 1993) con Alpha de Cronbach .62, Escala de Resiliencia 14 ítems ER-14 (Pritzker & Minter, 2014), con Alpha de Cronbach .80. …”
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  3. 2163

    Optimization in preparation process of V₂O₅ using symbolic regression α-β. por González Campos, Guillermo

    Publicado 2019
    “…Initial population, selection and iterations were considered to enhance the results when symbolic regression is applied. …”
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  4. 2164

    Evaluación de la calidad total en la UANL. Caso: cultura física y salud en el nivel medio superior. por Gadea Cavazos, Erika Alexandra

    Publicado 2019
    “…Therefore, the improvement of the quality of the education service directly affects students considering them as internal customers Lepeley (education, 2001), in academic institutions, this situation and consideration are of great importance to society as a whole by its implications not only educational but health. …”
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  5. 2165

    Efecto de una intervención psicológica sobre la imagen corporal en mujeres adolescentes y adultas jóvenes. por Venegas Ayala, Karina Sugeyl

    Publicado 2019
    “…Abstract In this work we studied body image and its relationship with psychological variables such as happiness, psychological well-being and physical self-concept. …”
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  6. 2166

    Insectos asociados a biomodelos simulando cuatro condiciones de hallazgo de cadáveres. por Briones Espinoza, Héctor Eduardo

    Publicado 2018
    “…The biological material collected was transferred to the Laboratory of Entomology and Arthropods, of the Faculty of Biological Sciences for its identification and curatorial process, a database was elaborated that were analyzed by ecological indexes and non-parametric statistics. …”
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  7. 2167

    Caracterización de las sucesiones areno - conglomeráticas del eoceno en la región de las Choapas, Veracruz. por Coronado González, Jesús Margil

    Publicado 2019
    “…The geochemistry carried out in the clasts of the conglomerate shows its different tectonic affinities, being the main ones of volcanic arc and ocean floor (MORB, IAT). …”
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  8. 2168

    Estudio del comportamiento del cuerpo y aletas plegables de un cohete, para un sistema de lanza cohetes múltiple por Pimentel Villasmil, Pablo Emilio

    Publicado 2014
    “…These fins provide more stability to the flight of the rocket, its primary function is to provide the rotational force required to maintain ballistic trajectory. …”
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  9. 2169
  10. 2170

    Formulación y evaluación biológica de nanomedicinas con extracto del cenizo Leucophyllum frutescens (BERL.) I.M. Johnston (Scrophulariaceae) contra Mycobacterium tuberculosis por Martínez Rivas, Claudia Janeth

    Publicado 2018
    “…Firstly, the methanolic extract of leaves and roots of L. frutescens and its fractions were obtained. The anti-M. tuberculosis activity was determined, being the root extract (EMR) and its hexane fractions (FHR and RF1) the most actives with a MIC of 100, 40 and 40 ȝg/mL, respectively. …”
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  11. 2171

    Structural, microstructural and electrical properties of vitrium-doped barium titanate for multilayer CERAMIC CAPACITORS por Hernández López, Ana María

    Publicado 2018
    “…For the above mentioned, barium titanate has a great potential for technological applications in the electronics industry. In fact, due to its high dielectric constant, low dielectric loss and superior performance at high frequency, one of its most common applications is as the dielectric material for ceramic capacitors (Wang, Chen, Gui, & Li, 2016).…”
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  12. 2172

    Fertilización orgánica de tres variedades de trigo (Triticum aestivum L.), en dos fechas de siembra por Uresti Porras, José Gerardo

    Publicado 2017
    “…Results were obtained with statistical significance, the most outstanding were for the variables: grain yield for .45m2 the highest yield was 119.54 g, the variable grain yield per hectare, its highest yield was 2.65 t ha-1, in the variable days to harvest the best variety was Maravillas NL M-2012 with 143 days. …”
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  13. 2173

    Evaluación del efecto de oligonucleotidos CpG en la proliferación y producción de citocinas en células de melanoma murino B16F10 por Rodríguez García, Ramiro Joel

    Publicado 2017
    “…It was observed that a concentration of 50 μg / ml, CpG 1826 reduces cell proliferation by 40%, in addition this CpG is able to induce the secretion of high levels of IL-10, an anti-inflammatory cytokine .Overall, the results suggest a biological role of TLR9 in the proliferation of B16F10 cells, proposing its use as monotherapy directed directly to the tumor cell, paying attention to its immunomodulatory properties that could have a detrimental effect on the immune system in the tumor microenvironment.…”
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  14. 2174

    Efecto patológico de la expansión de poliglutaminas de hTBP en la enfermedad neurodegenerativa SCA17 en Drosophila melanogaster por Cárdenas Tueme, Marcela

    Publicado 2017
    “…Our results, showed that hTBP34 and 80Q expressed in the flies’ eyes caused an aberrant phenotype which was polyQ lengthdependent as well as age-dependent. hTBP80Q expression in the flies’ brain shortened its life span when compared with the control groups. …”
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  15. 2175

    Efecto antioxidante y citoprotector de extractos de plantas con actividad antimicrobiana por Pérez Narváez, Oscar Alberto

    Publicado 2018
    “…Furthermore, indiscriminate use of antibiotics has induced microorganisms cause infections in humans generate resistance making it difficult to control such diseases, so it’s vital to develop new antimicrobial therapies. …”
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  16. 2176

    Actividad biológica de extractos etanólicos de Pinpinella anisum sobre Helicobacter pylori por Hernández Vázquez, Francisco Javier

    Publicado 2018
    “…We obtained the total secondary metabolites present in the P. anisum seed; and its phytochemical profile; we evaluated four doses of the EEPa on the log phase H. pylori culture; the three fractions of the EEPa were evaluated on the H. pylori culture, determining the CFU / mL in both bioassays; finally the fraction of the EEPa was analyzed in the GC-MS to identify the molecule or molecules with H. pylori activity. …”
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  17. 2177

    Interacciones triméricas del complejo Antp-TBP con los factores TFIIEβ, BIP2 y la homeoproteína Exd por Jiménez Mejía, Gustavo

    Publicado 2018
    “…Antennapedia (Antp) is a D. melanogaster homeoprotein that interact directly with DNA as well as another transcriptional factors to carry out its function. Previous reports had demonstrated that the glutamine-rich regions in Antp and TBP are important in the establishment of their interaction, but the absence of these regions doesn’t abolish completely their interaction, leading the hypothesis that exist a third element mediating this interaction. …”
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  18. 2178

    Análisis microfacial, paleontológico y geoquímico en carbonatos de la Formación el Abra, Cerritos, San Luis Potosí, México por Ramos Hernández, Jennifer

    Publicado 2018
    “…ABSTRACT During the Lower Cretaceous, the Valles San Luis Potosí Platform began its development in the central-eastern portion of Mexico, becoming one of the most important paleo-structures. …”
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  19. 2179

    Diagrama de manejo de densidad para bosques naturales en “R Project”, como herramienta de decisión en el manejo forestal por Acevedo Benitez, Fátima del Carmen

    Publicado 2017
    “…The data processing was done, together with the online platform of GitHub, where the use of different information technologies was implemented to achieve the main objective of developing a guide under the language of Rmarkdown, for its automatic replicability. And then published in the European Union of Zenodo…”
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  20. 2180

    Movimientos en masa inducidos por sismicidad en la porción NNE de la Sierra Madre Oriental por Salinas Jasso, Jorge Alán

    Publicado 2017
    “…Investigación de campo y análisis de imágenes satelitales de alta resolución permitieron identificar la ocurrencia de caídos y deslizamientos someros de detritos y rocas desencadenados por una secuencia sísmica (2.8≤M≤3.6) vigente durante los meses de julio a diciembre del año 2012 en el Cañón Santa Rosa, entre los municipios de Linares e Iturbide, Nuevo León. Sin embargo, únicamente se reportan los movimientos en masa generados durante julio y agosto debido a la cobertura temporal de las imágenes satelitales analizadas. …”
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