Search Results - ((testee OR tests) OR (est OR ((esta OR (esteo OR estera)) OR (gesteas OR resteo)))) point

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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 by Ortiz Lechuga, Eugenia Guadalupe, Rodríguez Zúñiga, Mauro, Arévalo Niño, Katiushka

    Published 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. …”
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    Article
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    Resiliencia en el uso de las aplicaciones didácticas interactivas en Estudiantes Universitarios después de la pandemia. Estudio Comparativo by Pérez-Martínez, Katia Site, Saldaña-Pérez, Juan Enrique, Mendoza-Vargas, Marta Magdalena

    Published 2024
    “…A ambos grupos se les aplico la encuesta llamada: “Escala de Aplicaciones Didácticas Interactivas”, la cual está integrada por 10 ítems de tipo Likert. La primera muestra fue tomada en el año 2018, y la segunda en el año 2023, esto permitió contrastar la diferencia entre sus respuestas, ya que en la primera, la aplicación de Power Point resulto ser la de mayor conocimiento y uso por los estudiantes, sin embargo, después de la pandemia, los estudiantes mostraron una mayor variabilidad ante el uso de las diversas aplicaciones didácticas interactivas, aunque si bien, refieren usar ahora más de una, Power Point sigue siendo la de mayor conocimiento.  …”
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    Article
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    Data on the removal of metals (Cr, Cr, Cd, Cu, Ni, Zn) from aqueous solution by adsorption using magnetite particles from electrochemical synthesis by Manrique, Julio Jorge, Marriaga Cabrales, Nilson, Hernández Ramírez, Aracely, Machuca Martínez, Fiderman

    Published 2019
    “…Magnetite particles were prepared by electrolytic synthesis (average crystallite size 37.9±1.2nm, surface area ¼ 17.2 m2g1, isoelectric point ¼ 6.3, magnetic saturation ¼ 62 emu g1) and used as adsorbent of heavy metals in aqueous solutions. …”
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    Article
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    Prevalence of sensorineural hearing loss in children and adolescents with diabetes mellitus by Treviño González, José Luis, Campuzano Bustamante, D. I., Flores Caloca, O., Santos Lartigue, Ramiro, Villegas González, M. J.

    Published 2015
    “…Moreover, 65.47% of the patients presented complications due to poor glycemic control at some point in the evolution of their disease. All (100%) diabetic patients with SNHL and 91% of the patients without SNHL had HbA1c values greater than 6%. …”
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    Article
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    Evaluation of hemoglobin performance in the assessment of iron stores in feto-maternal pairs in a high-risk population: receiver operating characteristic curve analysis by Jaime Pérez, José Carlos, García Arellano, Gisela, Méndez Ramírez, Nereida, González Llano, Óscar, Gómez Almaguer, David

    Published 2015
    “…Objective: By applying receiver operating characteristic curve analysis, the objective of this study was to see whether hemoglobin levels reflect body iron stores in a group of pregnant women at term who, by using serum ferritin as the reference test, had a high pre-test probability of having iron deficiency anemia. …”
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    Article
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    Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. by Rodríguez Vázquez, Carlos Alfonso

    Published 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. …”
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    Tesis
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    Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. by Rodríguez Vázquez, Carlos Alfonso

    Published 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. …”
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    Tesis
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    Evaluación de la calidad del agua de tres ríos de la subcuenca del “Río Limón” en el estado de Nuevo León by Ríos Saucedo, Julio César

    Published 2005
    “…Abstract The contamination of streams can be of point and non-piont or diffuse origin. In the area of Linares, land use changes, agricultural, and grazing practices leed to non point sources of contamination of streams. …”
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    Tesis
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    Evaluación de la calidad del agua de tres ríos de la subcuenca del “Río Limón” en el estado de Nuevo León by Ríos Saucedo, Julio César

    Published 2005
    “…Abstract The contamination of streams can be of point and non-piont or diffuse origin. In the area of Linares, land use changes, agricultural, and grazing practices leed to non point sources of contamination of streams. …”
    Get full text
    Tesis
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