Resultados de búsqueda - ((bteste OR estae) OR (esto OR (((esteroles OR resteaoas) OR testa) OR (estados OR teste)))) point*

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    Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. por Rodríguez Vázquez, Carlos Alfonso

    Publicado 2016
    “…In 2006 the Restriction of Hazardous Substances (RoHS) prohibited the use of lead (Pb) in solder paste, which has a melting temperature around 180oC, whereas lead-free solder pastes have a melting point around 230oC, 30oC-40oC higher than Pb solder paste, this has generated PCB thermo mechanical problems due to the temperature increase at which the material is exposed. …”
    Enlace del recurso
    Tesis
  4. 164

    Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. por Rodríguez Vázquez, Carlos Alfonso

    Publicado 2016
    “…In 2006 the Restriction of Hazardous Substances (RoHS) prohibited the use of lead (Pb) in solder paste, which has a melting temperature around 180oC, whereas lead-free solder pastes have a melting point around 230oC, 30oC-40oC higher than Pb solder paste, this has generated PCB thermo mechanical problems due to the temperature increase at which the material is exposed. …”
    Enlace del recurso
    Tesis
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    DISEÑO Y VALIDACIÓN DE UNA ESCALA DE APRENDIZAJE SOBRE SALUD COLECTIVA EN ENFERMERÍA por García Piña, Eunice Victoria

    Publicado 2017
    “…Results: An instrument of 40 items was obtained, which considers five dimensions of learning: genuine (8 to 40 points), meaningful, and reflective (7 to 35 points), experimental -multidimensional (9 to 45 points), self-employed (6 to 30points) and set (10 to 50 points), derivative in a total a score of 40 to 200 points. …”
    Enlace del recurso
    Artículo
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    Bioestratigrafía y microfacies de la formación cuesta del cura (cretácico inferior) en la Cañada Guadalupe del municipio de Iturbide, Nuevo León, México. por Coronado Díaz, Miroslava

    Publicado 2018
    “…The scarcity of information available to the focal points of this research is based on more complex organisms such as ammonoids and other macroscopic organisms, which is why the lack of studies based on foraminifera has not allowed establish more concrete biostratigraphic sequences. …”
    Enlace del recurso
    Tesis
  10. 170

    Bioestratigrafía y microfacies de la formación cuesta del cura (cretácico inferior) en la Cañada Guadalupe del municipio de Iturbide, Nuevo León, México. por Coronado Díaz, Miroslava

    Publicado 2018
    “…The scarcity of information available to the focal points of this research is based on more complex organisms such as ammonoids and other macroscopic organisms, which is why the lack of studies based on foraminifera has not allowed establish more concrete biostratigraphic sequences. …”
    Enlace del recurso
    Tesis
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    EVALUACIÓN DEL CONOCIMIENTO DEL DAÑO A LA SALUD POR CONSUMO DE ALCOHOL Y TABACO EN ESTUDIANTES PREUNIVERSITARIOS, CON INCLINACIÓN AL AREA DE LA SALUD E INGENIERIA EN MONTERREY, N.L... por Villarreal Villarreal, Fidel, Cantú Martínez, Pedro César

    Publicado 2002
    “…Por otra parte, se ha podido comprobar, que no existe diferencia significativaen el conocimiento del daño a la salud por el consumo de alcohol y tabaco; por lo cualno se puede considerar como un factor protector el tener una propensión de educacióncircunscrita a la salud.AbstractThe consumption of alcohol and tobacco is a remarkable social problem, and it is thatthere is a modification in the use pattern and in the class of the consumers. Numerousstudies point out the adolescent stage as that of more risk in the beginning of theconsumption of alcohol and tobacco, oscillating the age and indicating that if it isbegun in this habit to an early age the risk it increases. …”
    Enlace del recurso
    Artículo
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    Quality evaluation of the educational systems & educational administration and institutions (Evaluación de calidad de un sistema educativa: aspectos educativos e institucionales) por Pazhakh, A.R.

    Publicado 2006
    “…Different analytical and conceptual approaches to these points are given. Conclusions are drawn and future lines of research in these topics are suggested and pointed out. …”
    Enlace del recurso
    Artículo

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