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    Efficiency Evaluation on the Influence of Washing Methods for Biodiesel Produced from High Free Fatty Acid Waste Vegetable Oils through Selected Quality Parameters por Ortiz Lechuga, Eugenia Guadalupe, Rodríguez Zúñiga, Mauro, Arévalo Niño, Katiushka

    Publicado 2020
    “…We selected seven quality tests: pH determination, cloud, pour and flash point, acid number (AN), water/sediments and soap content considering the most commonly failed checkpoints in biodiesel production. …”
    Enlace del recurso
    Artículo
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    Los procedimientos científicos desde la perspectiva docente: una caracterización a partir de un escenario con relevancia pedagógica por Guerra Ramos, María Teresa

    Publicado 2017
    “…Data suggests that teachers´ representations point towards an image of scientific skills as mechanical actions, independent of context. …”
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    Artículo
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    Desarrollo de un cuestionario para evaluar las actitudes y percepciones de docentes de educación secundaria en relación con las actividades experimentales por Guerra Ramos, María Teresa, García Horta, José Baltazar, López Valentín, Dulce María

    Publicado 2017
    “…These tendencies will serve as a starting point for further research on effective ways of supporting teachers to develop skills and awareness on the potential and limitations of practical work.…”
    Enlace del recurso
    Artículo
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    Early school entrance and middle-run academic performance in Mexico: evidence for 15-year-old students from the PISA test por Aguayo Téllez, Ernesto, Martínez Rodríguez, Flor E.

    Publicado 2020
    “…We found that entering school at a younger age increases the probability of having repeated at least one academic year by 7 percentage points and reduces academic performance (measured throughout PISA’s score points) between 6 and 10 score points in mathematics, reading and science (a Cohen’s d efect size between 0.06 and 0.10). …”
    Enlace del recurso
    Artículo
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    Metal Complexes Containing Natural and Artificial Radioactive Elements and Their Applications por Kharissova, Oxana Vasilievna, Méndez Rojas, Miguel Ángel, Kharisov, Boris I., Méndez, Ubaldo, Martínez, Perla

    Publicado 2014
    “…Actinide and technetium complexes with O-, N-, N,O, N,S-, P-containing ligands, as well π-organometallics are discussed from the view point of their synthesis, properties, and main applications. …”
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    Artículo
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    A Case Study on Feed Management to Improving Production and Economic Returns for the Semi-Intensive Pond Production of Litopenaeus vannamei por Allen Davis, D., Amaya, Elkin, Venero, Jesus, Zelaya, Oscar, B. Rouse, David

    Publicado 2019
    “…It is also quite interesting to note that almost allmanagement set points (e.g. poor growth, or good growth) result in increases in feed input and that most often oneof the lowest payed employee is responsible for the proper application of the most costly component of shrimpculture, (i.e. the feed). …”
    Enlace del recurso
    Artículo
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    The internationalization of higher education - local tendencies and realities in the education of students of engineering and natural sciences in a mexican a university -a case stu... por Dörfer, Claudia, Araiza Vázquez, María de Jesús

    Publicado 2012
    “…With all this we hope to be able to contribute to improve educational processes, and to make findings from the point of view of its main actors as well as to support administrative decision making the moment when students enter academic exchange programs.…”
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