Resultados de búsqueda - (((usumy OR sum) OR ((sumen OR (sumos OR suyos)) OR (sumo OR (same OR adame)))) OR usuma)*

  1. 161

    An educational strategy for improving knowledge about breast and cervical cancer prevention among Mexican middle school students por Calderón Garcidueñas, Ana Laura, Flores Peña, Yolanda, De León Leal, Silvia, Vázquez Martínez, Carlos Alberto, Farías Calderón, Ana Gabriela, Melo Santiesteban, Guadalupe, Elizondo Zapién, Rosa María, Hernández Hernández, Dulce María, Garza Moya, Rubén, Cerda Flores, Ricardo Martín

    Publicado 2015
    “…Results: An assessment instrument with 0.80 reliability was obtained. 831 high school students were analyzed. Wilcoxon rank-sum test showed a significant learning after the intervention (Z = −2.64, p = 0.008) with improvement of levels of knowledge in a 154.5%. 49% of students had a good performance as health promoters. …”
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  2. 162

    System identification applied to a single area electric power system under frequency response por Barrios Gómez, José Ángel, Gonzalez Longatt, Francisco, Claudio, Gianfranco

    Publicado 2021
    “…A SAEPS with different governors-turbine is presented: a hydraulic turbine, a steam turbine and a steam reheat turbine. In this same investigation, an analytic reduction has been performed, a fifth order system was found analytically, thus a transfer function equivalent to the three different governor-turbine elements was obtained, this equivalent transfer function models the complete behavior of the three devices. …”
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  3. 163
  4. 164

    Apparent digestibility of dry matter, crude protein, and amino acids of six rendered by-products in juvenile Litopenaeus vannamei por Villarreal Cavazos, David Alonso, Ricque Marie, Denis, Peña Rodríguez, Alberto, Nieto López, Martha Guadalupe, Tapia Salazar, Mireya, Lemme, Andreas, Gamboa Delgado, Julián, Cruz Suárez, Lucía Elizabeth

    Publicado 2014
    “…The digestibility of CP in the reference diet (83%) was higher than that observed for all the animal by-product meals except the poultry meals. The ADC of the sum of AA adjusted for nutrient leaching fluctuated from 65% for blood meal to 80% for poultry meals.…”
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  5. 165
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  8. 168

    Optimal policies for constrained average-cost Markov decision processes por González Hernández, Juan, Villarreal, César Emilio

    Publicado 2009
    “…We give mild conditions for the existence of optimal solutions for a Markov decision problem with average cost, under m constraints of the same kind, in Borel actions and states spaces. Moreover, there is an optimal policy that is a convex combination of at most m + 1 deterministic policies.…”
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  16. 176

    Mineralogical and geochemical evidence of magma mingling/mixing in the Sierra de las Cruces volcanic range, Mexican Volcanic Belt por Velasco Tapia, Fernando, Rodríguez Saavedra, Pedro, Marquez, Alvaro, Navarro de León, Ignacio, De Ignacio, Cristina, Marroquín Guerra, Sylvia Gabriela, Quintanilla Garza, Jesús, Rangel Alvarez, Oscar Mario

    Publicado 2013
    “…The evidences of magma mixing and mingling include: (a) normal and sieved plagioclases in the same sample, rounded and embayed crystals, and armoured rims over the dissolved crystal surfaces; (b) subrounded, vesicular magmatic enclaves, ranging from a few millimeters to ~20 centimeters in size, with plagioclase + orthopyroxene + amphibole + quartz ± olivine ± Fe-Ti-oxides assemblage; (c) mineral chemistry evidence such as crystals with reaction rims or heterogeneous plagioclase compositions (inverse and oscillatory zoning or normally and inversely zoned crystals) in the same sample; and (d) elemental geochemical variations and trace-element ratio more akin to magma mixing and to some extent diffusion process. …”
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  17. 177
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  20. 180

    Importance of operational management to achieve sustaintability in a smb por Pérez Astorga, Steffy, Olvera Muñoz, Martín Alejandro, Reynosa Barbosa, Angélica

    Publicado 2014
    “…We examine the problems or situations that have played a big role in CIEM’s decrease in production and try to provide solutions for each of the problems and provide a general solution for the enterprise that could help to increase its profit, hoping these also help many other small companies going through the same kind of problems.…”
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