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

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

“…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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Randomized clinical trial to evaluate the effect of fecal microbiota transplant for initial Clostridium difficile infection in intestinal microbiome by Green, John, Camacho Ortiz, Adrián, Gutiérrez Delgado, Eva María, García Mazcorro, José Francisco, Mendoza Olazarán, Soraya Sarahí, Martíne Meléndez, Adrián, Palau Davila, Laura, Baines, Simon D., Maldonado Garza, Héctor Jesús, Garza González, Elvira

“…In the FMT-FURM group, the bacterial composition was dominated by Firmicutes, Bacteroidetes, and Proteobacteria at all-time points and the microbiota were remarkably stable over time. …”
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Comparisons of the Root Mechanical Properties of three Native Mexican Tree Species for Soil Bioengineering Practices by Sánchez Castillo, Laura Margarita, Kubota, Tetsuya, Cantú Silva, Israel, Yáñez Díaz, María Inés, Hasnawir, Pequeño Ledezma, Miguel Angel

“…In other hand, results confirmed the negative relationship between diameter and tensile strength and diameter and modulus of elasticity. Pointing out that roots of bigger diameter have less tensile strength and elasticity. …”
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Efficient removal of lead(II) ions in water using functionalized poly(styrene) oligomers by Sánchez Anguiano , Maria G., Oliva de Dios, Mauricio L., Chan Navarro, Rodrigo, Elizondo Martínez, Perla, Rosa M., García López , María Concepción

“…Adsorption process of Pb(II) was optimized using the 2*' fractional factorial design with replicates at the central point supplemented with the central composite design where the percentage adsorption was chosen as the response variable. …”
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CALIDAD BACTERIOLOGICA DE ENSALADAS DE ZANAHORIA RALLADA Y EFICACIA DE TRATAMIENTOS PREVIOS A SU CONSUMO by Gentili Alejandro, Raúl, Marzocca, María Alejandra, Oriani, Alejandra Soledad, Baldini, Mónica Diana

“…Discussion: It should be pointed out the importance of the microbiological quality of raw material, since the 35% of the samples do not reach the requirements even applying the treatment with hypochlorite. …”
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An exact algorithm to solve a cloud service bilevel problem. by López Vear, Lilian

“…It is also proved that because all this materialization and join of different scientific aspects, is that we have reached a point where we have touched everything around us. …”
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An exact algorithm to solve a cloud service bilevel problem. by López Vear, Lilian

“…It is also proved that because all this materialization and join of different scientific aspects, is that we have reached a point where we have touched everything around us. …”
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Caracterización electroquímica de la pasivación de acero inoxidable empleado en la fabricación de fuselajes de helicópteros. by Lara Banda, María del Refugio

“…In general when talking about this type of helicopter, investigations are carried out with the first point to consider the safety of those who operate it, together with the factors to which it will be exposed, among which we can mention: environmental conditions, weight and resistance to corrosion, among others. …”
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Caracterización electroquímica de la pasivación de acero inoxidable empleado en la fabricación de fuselajes de helicópteros. by Lara Banda, María del Refugio

“…In general when talking about this type of helicopter, investigations are carried out with the first point to consider the safety of those who operate it, together with the factors to which it will be exposed, among which we can mention: environmental conditions, weight and resistance to corrosion, among others. …”
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A stochastic location-inventory problem: complexity and mathematical formulations. by Hernández González, Nelly Montserrat

“…In our case they are limited as single source, which means that each demand point should be serviced by a single supply point. …”
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A stochastic location-inventory problem: complexity and mathematical formulations. by Hernández González, Nelly Montserrat

“…In our case they are limited as single source, which means that each demand point should be serviced by a single supply point. …”
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Sociedad y espectadores: investigando la televisión desde la ciencia social. El caso español by Merayo, Mar Chicharro

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La docencia en el nivel superior desde la perspectiva del profesor universitario by Zaldivar Acosta, Marisa

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La educación para una ciudadanía democrática en las instituciones educativas: su abordaje sociopedagógico = Education for democratic citizenship in educational institutions: the s... by Torres Bugdud, Arturo, Alvarez Aguilar, Nivia T., Obando Rodríguez, María del Roble

“…It comprises key aspects of the student’s personal and social behavior, and has significant points of convergence with other areas of the educational practice. …”
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Las decisiones del general. Análisis crítico de la cultura y mentalidad bélica mexicana durante la Batalla de la Angostura by Rodríguez López, Andrés

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Reducción de los tiempos de cambio de modelo en los productos fabricados en una empresa manufacturera de aspiradoras by Morales Rodríguez, Mario Alberto, Cervantes Zubirías, Gabriela, Wong Gallegos, Juan Yared, Martínez Mendoza, Ronaldo

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La Evaluación en educación preescolar: El dilema docente by Zamora, Víctor Manuel

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¿Cuánto cuesta la calidad? by Cruz Álvarez, Jesús Gerardo

“…In this article the eonomic impact of of quality on operation costs of the ompanies, highlithing tow following factors: 1) poor quality cost, and 2) quality cost are pointed out is described. The theory behind the quality cost is discussed and a case in the metropolitan area of Monterrey with the objective of exploring the fenomenon of quality and its imoact on the related costa is given. …”
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Pintura y realismo, el juego de la representación = Painting and realism, the game of representation by Morales Orona, Héctor Manuel

“…ENGLISH: This article tries to come closer the topic of the realism from a point of view that concerns the painting using for it of concepts extracted from some philosophers’ texts that indicated the limits in which the art and the philosophy join. …”
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