Resultados de búsqueda - (((usumoy OR sum) OR ((sumoe OR (sume OR some)) OR auasume)) OR suma)*

Estimación de los niveles ambientales de formaldehido en clínicas de odontopediatría. por Villarreal González, Adela Andrea

“…ABSTRACT Introduction In any health profession, we are constantly obliged not only to ensure the health of our patients but also to value and ensure our health at all times, when we must ask ourselves if the materials we use for our routine treatments could cause us some adverse effect. objective Analyze the concentration of environmental formaldehyde levels in the postgraduate clinics of Pediatric Dentistry and Dental Modules. …”
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Schizophyllum commune : An unexploited source for lignocellulose degrading enzymes por Tovar Herrera, Omar Eduardo, Martha Paz, Adriana Mayrel, Pérez LLano, Yordanis, Aranda, Elisabet, Tacoronte Morales, Juan Enrique, Pedroso Cabrera, María Teresa, Arévalo Niño, Katiushka, Folch Mallol, Jorge Luis, Batista García, Ramón Alberto

“…In addition, a large number of protein- coding genes for glycoside hydrolases, oxidoreductases like laccases (Lacs; EC 1.10.3.2), as well as some sequences encoding for lytic polysaccharide monooxygenases (LPMOs) and expansins- like proteins demonstrate the potential of this fungus to be applied in different biotechnological process. …”
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Ley sobre accidentes en el trabajo de 1906: una legislación moderna para un sistema de justicia anquilosado = The Labor Accident Law of 1906: Modern Legislation for a Stagnant Just... por Rodríguez Castillo, Óscar Abraham

“…This project seeks to clear some doubts about this law’s application. In that sense, we used three cases of occupational accidents to show the following: the procedure followed by the injured worker, the parsimony of the civil courts to resolve these lawsuits, and finally, the resources used by the defense to not pay compensation. …”
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Mechanisms of insecticide resistance in field populations of Aedes aegypti (L) from Quintana Roo, Southern Mexico por Flores Suárez, Adriana Elizabeth, Salomón Grajales, Jaime, Fernández Salas, Ildefonso, Ponce García, Gustavo, Lozano Fuentes, Saúl, Black, William C., Brodgon, William

“…Elevated esterases suggest potential insecticide-resistance mechanisms against organophosphate, carbamate, and some pyrethroid insecticides. Slightly elevated levels of MFOs appeared in Lazaro Cardenas females and in Cozumel, Isla Mujeres, and Solidaridad males. …”
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Non-random distribution of biocrust in a natural arid environment in the northern mexican plateau por Gutiérrez, M., Pando Moreno, Marisela, Jurado, Enrique, González Rodríguez, Humberto, Marmolejo Monsiváis, José Guadalupe, Mendoza, D.

“…Biocrust, as photosynthetic organisms, has been considered to show an inversely proportional relationship with vascular plant cover. However, some studies report association and facilitation relationships between them. …”
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Spatial Microstructural Ordering of Expansive Clay Minerals por López Lara, T., Hernández Zaragoza, J. B., Carreón Freyre, D., Cerca, M., Rojas González, E., Minor Franco, A. G., Martínez Barrera, G., Salgado Delgado, R.

“…Sothis work studies the spatial microstructural ordering and mineralogy of different expanding clays in order to correlate them with some of their geotechnical properties (plasticity, classification, andexpansion).TheclaymicrostructurewasobtainedusingX-ray diffraction, and sweeping electronic microscopy. …”
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Reacción adversa a contraste no iodado por Palma Gomez, Samuel, González Díaz, Sandra Nora, Arias Cruz, Alfredo, Macías Weinmann, Alejandra, Amaro Vivian, Laura Elizabeth, Pérez Vanzzini, Rafael, Gutiérrez Mujica, José Julio, Young Rodríguez, Adrián

“…ABSTRACT Adverse reactions to drugs are relatively frequent in clinical practice, and some of them can be life threatening. Reactions to contrast material (CM) represent an important percentage of these adverse reactions. …”
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La educación holística desde una perspectiva humanista por López Arrillaga, César Enrique

“…El presente ensayo pretende aproximarse a los conceptos básicos de Educación Holística (Barrera, 2013) y un breve recorrido conceptual y de principales postulados de la teoría humanista considerada por el autor sobre la personalidad, (Carl, 1961), para establecer la posible aproximación teórica de la educación holística desde una perspectiva humanista en el encuentro de los postulados del Humanismo en la práctica docente que permita la humanización de la educación, centrada en los seres humanos tomando en cuenta sus capacidades, habilidades y destrezas, en pocas palabras un recorrido de algunos tópicos teóricos importante que coadyuvaran a construir una visión Hologogica en los docentes ABSTRACT This essay intends to approach the basic concepts of Holistic Education (Barrera, 2013) and a brief conceptual journey and main postulates of the humanist theory considered by the author on personality, (Carl, 1961), to establish the possible link of holistic education from a humanist perspective in the meeting of the postulates of Humanism in the teaching practice that allows the humanization of education, centered on human beings taking into account their abilities, abilities and skills, in a few words a tour of some important theoretical topics that will help build a vision of Hologogy in teachers…”
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Experimental data on the production and characterization of biochars derived from coconut-shell wastes obtained from the Colombian Pacific Coast at low temperature pyrolysis por Castilla Caballero, Deyler, Barraza Burgos, Juan, Gunasekaran, Sundaram, Roa Espinosa, Aicardo, Colina Márquez, José, Machuca Martínez, Fiderman, Hernández Ramírez, Aracely, Vázquez Rodríguez, Sofía

“…Production yields and some biochar properties such as particle size, Zeta Potential, elemental content (C, N, Al, B, Ca, Cu, Fe, K, Li, Mg, Mn, Na, P, S, Ti, Zn), BET surface area, FT-IR spectrum, XRD spectrum, and SEM morphology are presented. …”
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Depósito de películas ultradelgadas de óxido de zinc (ZnO) por ALD por Martínez G., Eduardo, Flores, José, Pérez Tijerina, Eduardo

“…Trough the topographical analysis developed by AFM, we have observed that roughness of the surface has a clear dependence with some of the experimental parameters as the exposure time with the precursors and the purge time in which the residues are removed. …”
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Nonferrous waste foundry sand and milling fly ash as alternative low mechanical strength materials for construction industry: effect on mortars at early ages por Vázquez Rodríguez, Francisco Javier, Valadez Ramos, Jaime Elihezer, Puente Ornelas, Rodrigo, Contreras, J. E., Arato, A., Rodríguez Castellanos, Edén Amaral

“…Microstructurally, it was found a porous cement matrix with some cracking caused by the reaction of portland cement with the metallic aluminum remaining in the waste sand, which is correlated to the low mechanical resistance obtained. …”
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Effect of Sawdust Particle Size on Physical, Mechanical, and Energetic Properties of Pinus durangensis Briquettes por Zepeda Cepeda, Christian Osvaldo, Goche Télles, José Rodolfo, Palacios Mendoza, Celina, Moreno Anguiano, Oswaldo, Núñez Retana, Víctor Daniel, Heya, Maginot Ngangyo, Carrillo Parra, Artemio

“…The objective of this research was to evaluate the effect of different particle sizes of sawdust in mixtures on some physical, mechanical, and energetic properties of briquettes made from Pinus durangensis sawdust, as well as set the ranges within the appropriate values found to obtain desired values. …”
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Corrosion Resistance of Hard Coat Anodized AA 6061 in Citric–Sulfuric Solutions por Cabral Miramontes, José Ángel, Gaona Tiburcio, Citlalli, Estupiñan López, Francisco H., Lara Banda, María del Refugio, Zambrano Robledo, Patricia del Carmen, Nieves Mendoza, Demetrio, Maldonado Bandala, Erick, Almeraya Calderón, Facundo, Chacón Nava, José G.

“…Unfortunately, aluminum alloys are susceptible to corrosion, which limits their use in some corrosive environments. The aim of this work is to characterize hard coat film fabricated by anodizing in a citric–sulfuric acid system using electrochemical techniques. …”
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Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications por Villegas Tovar, José M., Gaona Tiburcio, Citlalli, Lara Banda, María del Refugio, Maldonado Bandala, Erick, Baltazar Zamora, Miguel Ángel, Cabral Miramontes, José Ángel, Nieves Mendoza, Demetrio, Olguín Coca, Javier, Estupiñan López, Francisco H., Almeraya Calderón, Facundo

“…Citric acid does work as a passivating solution, and in some cases, the corrosion resistance of the stainless steel was comparable to that of nitric acid.…”
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Copper Induces Damage, Oxidative Stress and Cell Death in Endothelium of Chronic Intoxicated Wistar Rats por Fernández Rodarte, Bernardo Alfonso, Soto Domínguez, Adolfo, González Navarro, Alejandro, Mellado Ayala, Maximiliano, Piña Mendoza, Edgar, Rodríguez Rocha, Humberto, Montes de Oca Luna, Roberto, Guerra Leal, Jesús Dante

“…Reactive Oxygen Species (ROS) are part of the functional balance of various systems, they can generate cellular damage by oxidative stress associated with disease processes such as atherosclerosis, cardiovascular disease, diabetes, and aging. Some studies report that copper induces damage to the endothelium, which could be associated with cardiovascular pathologies. …”
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Análisis de la competencia en la industria cementera en México por De La Garza Garza, Oscar Javier, Arteaga García, Julio César

“…Aunque los resultados no son robustos, no se puede descartar que la competencia sea de tipo Stackelberg; tampoco se puede descartar que las empresas cementeras en México se comporten como en el modelo de Cournot ABSTRACT:There are some key sectors or industries in the economy of a country.Examples are telecommunications, transportation, commercial banking,construction, energy, among others. …”
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Estándares característicos de una escuela internacional: el impacto de la acreditación internacional de programas en la educación superior por Barragán Codina, José Nicolás

“…Quality in education is something that is not easy to figure out, in the perspective on how to measure the quality in education, perhaps the only way to measure quality in education is to measure the actual results from education, such as graduates, course syllabus, and some others. The aim of this article is to provide more information on the basics characteristic in higher education that might be able to help educational institutions to organize efforts that could lead them to apply quality in the higher education as they would like, and also as a differentiation strategy.…”
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Access and use of health care services by mothers and children in the Texas-Mexico border region: preliminary findings from the 2006 Rio Grande Valley health survey por Reagan, Patricia B., Pagán, José A.

“…Background: Latino/a children have the highest rate of uninsurance among all ethnic/racial groups. There is some evidence that patterns of health care use between parents and their children are interrelated. …”
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Trimetallic nanostructures: the case of AgPd–Pt multiply twinned nanoparticles por Khanal, Subarna, Bhattarai, Nabraj, Velázquez Salazar, J. Jesús, Bahena, Daniel, Soldano, German, Ponce, Arturo, Mariscal, Marcelo M., Mejía Rosales, Sergio, Yacamán, Miguel José

“…The nanoparticles were small in size, with an average diameter of 11 nm and a narrow distribution, and their characterization by aberration corrected scanning transmission electron microscopy allowed us to probe the structure of the particles at an atomistic level. In some nanoparticles, the formation of a hollow structure was also observed, that facilitates the alloying of Ag and Pt in the shell region and the segregation of Ag atoms on the surface, affecting the catalytic activity and stability. …”
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Thin films of Cu, In and Sb chalcogenides as photovoltaic absorbers por Ornelas Acosta, Raúl Ernesto

“…On the other hand, quaternary CZTSSe which contain abundant and inexpensive elements like Cu, Zn, Sn, S and Se has been a potential candidate for PV technology having solar cell efficiency up to 12.6%, however, there are still some challenges that must be accomplished for this material. …”
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