Resultados de búsqueda - (((uuusumay OR sum) OR ((((sumen OR usumaaen) OR asumaoe) OR some) OR assumed)) OR usumoa)*

  1. 641

    Bromate and chromate removal from water by double layered hydroxides por Villanueva Rangel, Cecilia Patricia

    Publicado 2015
    “…To remove bromate and chromate from water, common methods include ion exchange, coagulation-flocculation processes, reductionprecipitation, etc., but these strategies can present some important disadvantages like incomplete removal, high cost, continuous use of reagents, and high energy costs. …”
    Enlace del recurso
    Tesis
  2. 642

    Evaluación de un programa para incrementar habilidades de autorregulación en niños de edad preescolar. por Morales González, Ana Rosa

    Publicado 2018
    “…The control group did not present significant changes throughout time and in some areas of selfregulation it even diminished. …”
    Enlace del recurso
    Tesis
  3. 643

    Bromate and chromate removal from water by double layered hydroxides por Villanueva Rangel, Cecilia Patricia

    Publicado 2015
    “…To remove bromate and chromate from water, common methods include ion exchange, coagulation-flocculation processes, reductionprecipitation, etc., but these strategies can present some important disadvantages like incomplete removal, high cost, continuous use of reagents, and high energy costs. …”
    Enlace del recurso
    Tesis
  4. 644
  5. 645
  6. 646
  7. 647
  8. 648
  9. 649
  10. 650
  11. 651
  12. 652
  13. 653
  14. 654
  15. 655
  16. 656
  17. 657

    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
    “…Teachers’ responses suggest good predisposition and benevolent attitudes in general; however these contrast with some teachers, reluctance to conduct practical work, lack of confidence and sense of control. …”
    Enlace del recurso
    Artículo
  18. 658

    Niñez en riesgo y la agenda del desarrollo: Una reflexión sobre el trabajo infantil. por Martínez Chapa, Oshiel Martínez Chapa, Martínez Chapa, Olga Lidia, Salazar Castillo, Jorge E

    Publicado 2017
    “…The study adopts type socio-economic perspectives and is located in the context of international and national law as is essential to the protection of this important group of society. It presents some aspects of this problem at the international and national levels. …”
    Enlace del recurso
    Artículo
  19. 659
  20. 660

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