Search Results - ((((((sumy OR sum) OR some) OR (usura OR usuary)) OR sumaaay) OR suma) OR uusumo)

  1. 701

    Mechanisms of insecticide resistance in field populations of Aedes aegypti (L) from Quintana Roo, Southern Mexico by Flores Suárez, Adriana Elizabeth, Salomón Grajales, Jaime, Fernández Salas, Ildefonso, Ponce García, Gustavo, Lozano Fuentes, Saúl, Black, William C., Brodgon, William

    Published 2006
    “…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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    Article
  2. 702

    Non-random distribution of biocrust in a natural arid environment in the northern mexican plateau by Gutiérrez, M., Pando Moreno, Marisela, Jurado, Enrique, González Rodríguez, Humberto, Marmolejo Monsiváis, José Guadalupe, Mendoza, D.

    Published 2018
    “…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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    Article
  3. 703

    Spatial Microstructural Ordering of Expansive Clay Minerals by 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.

    Published 2018
    “…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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    Article
  4. 704

    Reacción adversa a contraste no iodado by 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

    Published 2014
    “…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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    Article
  5. 705

    La educación holística desde una perspectiva humanista by López Arrillaga, César Enrique

    Published 2018
    “…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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  6. 706

    Experimental data on the production and characterization of biochars derived from coconut-shell wastes obtained from the Colombian Pacific Coast at low temperature pyrolysis by Castilla Caballero, Deyler, Barraza Burgos, Juan, Gunasekaran, Sundaram, Roa Espinosa, Aicardo, Colina Márquez, José, Machuca Martínez, Fiderman, Hernández Ramírez, Aracely, Vázquez Rodríguez, Sofía

    Published 2020
    “…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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    Article
  7. 707

    Depósito de películas ultradelgadas de óxido de zinc (ZnO) por ALD by Martínez G., Eduardo, Flores, José, Pérez Tijerina, Eduardo

    Published 2010
    “…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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    Article
  8. 708

    Nonferrous waste foundry sand and milling fly ash as alternative low mechanical strength materials for construction industry: effect on mortars at early ages by Vázquez Rodríguez, Francisco Javier, Valadez Ramos, Jaime Elihezer, Puente Ornelas, Rodrigo, Contreras, J. E., Arato, A., Rodríguez Castellanos, Edén Amaral

    Published 2018
    “…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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    Article
  9. 709

    Effect of Sawdust Particle Size on Physical, Mechanical, and Energetic Properties of Pinus durangensis Briquettes by Zepeda Cepeda, Christian Osvaldo, Goche Télles, José Rodolfo, Palacios Mendoza, Celina, Moreno Anguiano, Oswaldo, Núñez Retana, Víctor Daniel, Heya, Maginot Ngangyo, Carrillo Parra, Artemio

    Published 2021
    “…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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    Article
  10. 710

    Corrosion Resistance of Hard Coat Anodized AA 6061 in Citric–Sulfuric Solutions by Cabral Miramontes, José Ángel, Gaona Tiburcio, Citlalli, Estupiñan López, Francisco Humberto, Lara Banda, María del Refugio, Zambrano Robledo, Patricia del Carmen, Nieves Mendoza, Demetrio, Maldonado Bandala, Erick, Almeraya Calderón, Facundo, Chacón Nava, José G.

    Published 2020
    “…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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    Article
  11. 711
  12. 712

    Copper Induces Damage, Oxidative Stress and Cell Death in Endothelium of Chronic Intoxicated Wistar Rats by 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

    Published 2022
    “…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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    Article
  13. 713

    Effects of wetting and drying cycles on the germination of nine species of the Chihuahuan Desert by Contreras Quiroz, Mariana del Rocío, Pando Moreno, Marisela, Flores, Joel, Jurado, Enrique

    Published 2016
    “…These results indicate that at least some desert species germinate more and faster after single or multiple hydration-dehydration events showing the ability of those seeds to retain, during dehydration, the physiological changes produced from seed hydration.…”
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  14. 714

    Análisis de la competencia en la industria cementera en México by De La Garza Garza, Oscar Javier, Arteaga García, Julio César

    Published 2011
    “…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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  15. 715

    Estándares característicos de una escuela internacional: el impacto de la acreditación internacional de programas en la educación superior by 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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    Otro
  16. 716

    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 by Reagan, Patricia B., Pagán, José A.

    Published 2007
    “…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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  17. 717

    Trimetallic nanostructures: the case of AgPd–Pt multiply twinned nanoparticles by Khanal, Subarna, Bhattarai, Nabraj, Velázquez Salazar, J. Jesús, Bahena, Daniel, Soldano, German, Ponce, Arturo, Mariscal, Marcelo M., Mejía Rosales, Sergio, Yacamán, Miguel José

    Published 2013
    “…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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    Article
  18. 718

    Thin films of Cu, In and Sb chalcogenides as photovoltaic absorbers by Ornelas Acosta, Raúl Ernesto

    Published 2015
    “…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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  19. 719

    Efecto de la microestructura y la concentración del ácido en la corrosión de aleaciones binarias Pb-Sn by Borrego Navejas, Rocío

    Published 2015
    “…Lead is a rare element in earth’s crust, but since it is found in concentrated deposits it can be produced at low cost, and ranks fifth in tonnage consumed after iron, copper, aluminum and zinc. Some of the many applications of lead are: automobile batteries, uninterruptible power sources, radiation shields in nuclear facilities or medical x-ray apparatus, etc. …”
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  20. 720

    On aerodynamics of baseball pitches: reconstruction of spinning throws, and a lift force model for the knuckleball by Aguirre López, Mario Alberto

    Published 2016
    “…On the other hand, there are some methods to reconstruct baseball trajectories, however, these methods do not usually deal with the movement equations, and if they do, its by knowing a lot of points of the real trajectory. …”
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