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Development of an Ultra-Low Carbon MgO Refractory Doped with α-Al2O3 Nanoparticles for the Steelmaking Industry: A Microstructural and Thermo-Mechanical Study by Gómez Rodríguez, Cristian, Castillo Rodríguez, Guadalupe Alan, Rodríguez Castellanos, Edén Amaral, Vázquez Rodríguez, Francisco Javier, López Perales, Jesús Fernando, Aguilar Martínez, Josué Amilcar, Fernández González, Daniel, García Quiñonez, Linda Viviana, Das Roy, Tushar Kanty, Verdeja, Luis Felipe

“…However, as the α-Al2O3 nanoparticle content increased, the density and microhardness decreased. Microstructural observations showed that the presence of α-Al2O3 nanoparticles in the magnesia matrix induced the magnesium-aluminate spinel formation (MgAl2O4), which improved the mechanical resistance most significantly at 1500 °C.…”
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Corrosion behavior of AA2055 aluminum-lithium alloys anodized in the presence of sulfuric acid solution by Samaniego Gámez, Pedro Oliver, Almeraya Calderón, Facundo, Maldonado Bandala, Erick, Cabral Miramontes, José Ángel, Nieves Mendoza, Demetrio, Olguín Coca, Javier, López León, Luis Daimir, Silva Vidaurri, Luis Gerardo, Zambrano Robledo, Patricia del Carmen, Gaona Tiburcio, Citlalli

“…The Na2Cr2O7 sealing solution tends to increase the charge transfer resistance and produces a more homogeneous and compact passive oxide layer, and imparts a corrosion inhibition protection to the AA2055. SEM observations indicated that the morphology and thickness of the anodic films formed on AA2055 aluminum-lithium alloy anodized have the best results for both current densities.…”
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Un Día en el Asilo: Experiencia desde la mirada de los Adultos Mayores by Rosas Dávila, Karina Verenice, Castor Vaquera, Nicole, Alvarado González, Aldo Steve, Martell Muñoz, Juan

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Entre el clientelismo y la confianza: vínculos y relaciones entre los individuos y la institución política local. by Cohaila, Edwin

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La importancia de la profesionalización del servicio público. avances y retrocesos en materia de profesionalización en el estado de Nuevo León by Pineda Rasgado, Xunaxhi Monserrat

“…In Mexico, for example, there is an applicable law at a federal level for the Career Professional System, however, in this study, it is intended to give an overall picture of the circumstances of this professionalization system is in the federal entities and in a specific way in the state of Nuevo León, first independent state government.Key words: De-Paradoxofication, Fuctional Equivalent, Second-order Observation, Fuctional Method.Cómo referenciar este artículo: Pineda-Rasgado, X. …”
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Turbulent Kinetic Energy in the Energy Balance of a Solar Flare by Kontar, E. P., Pérez, J. E., Harra, L. K., Kuznetsov, A. A., Emslie, A. G., Jeffrey, N. L. S., Bian, N. H., Dennis, B. R.

“…Using an unprecedented set of coordinated observations, from a suite of instruments, we here report on a hitherto largely overlooked energy component—the kinetic energy associated with small-scale turbulent mass motions. …”
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Nutrition affects insect susceptibility to Bt toxins by Deans, Carrie A., Behmer, Spencer T., Tessnow, Ashley E., Tamez Guerra, Patricia, Pusztai Carey, Marianne, Sword, Gregory A.

“…The spread of resistance alleles is the primary explanation for observations of reduced pesticide efficacy over time, but the potential for gene-by-environment interactions (plasticity) to mediate susceptibility has largely been overlooked. …”
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Ultrasound-guided umbilical venous catheterisation: A cost-effectiveness analysis by Guzmán de la Garza, Francisco Javier, Laredo Flores, Argelia Dardane, Cárdenas del Castillo, Bárbara, Cordero Franco, Hid Felizardo, Salinas Martínez, Ana María, Fernández Garza, Nancy Esthela, Ochoa Correa, Erika del Carmen

“…Patients and methods: A retrospective observational study was conducted on newborns that required an umbilical venous catheter before completing their first 24 h of extra-uterine life. …”
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Electrospun Polyvinylpyrrolidone-Gelatin and Cellulose Acetate Bi-Layer Scaffold Loaded with Gentamicin as Possible Wound Dressing by López Calderón, Héctor Daniel, Avilés Arnaut, Hamlet, Galán Wong, Luis Jesús, Almaguer Cantú, Verónica, Laguna Camacho, J. R., Calderón Ramón, C., Escalante Martínez, J. E., Arévalo Niño, Katiushka

“…The obtained material was characterized by observations on scanning electron microscopy, Fourier transform infrared spectroscopy and thermal analysis; contact angle measurement was performed to evaluate wettability properties, and antibacterial activity against Pseudomonas aeruginosa and Staphylococcus aureus were evaluated using the Kirby–Bauer test. …”
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The crisis of democracy in Mexico: Chronicling the dismantling of democratic institutions by Gómez Díaz de León, Carlos

“…The main indicator of this evolution is the deterioration of the institutional framework that has been violated and threatened in the last 5 years, according to the main evidence described. Finally, some observations are made to avoid further affecting the democratic advance in Mexico.…”
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Gold−Copper Nano-Alloy, “Tumbaga”, in the era of nano: phase diagram and segregation by Guisbiers, Grégory, Mejía Rosales, Sergio, Khanal, Subarna, Ruiz Zepeda, Francisco, Whetten, Robert L., Yacamán, Miguel José

“…The results of the thermodynamic approach are compared and supported by molecular-dynamics simulations and by electron-microscopy (EDX) observations.…”
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Estudio computacional de la capacidad antioxidante de tuna (Opuntia Streptacantha) by Hernández-Méndez, Diana, Fuentes-Ocampo, Lucero, Diaz-Cervantes, Erik

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Mixed sensitivity control: a non-iterative approach by Galindo Orozco, René

“…This MSC problem is solved in a one-parameter observer-controller configuration and reference tracking-control of positions is realized on a two-degrees of freedom feedback-configuration. …”
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Correlation between seasonal and meteorological factors with the monthly frequency of intracranial aneurysms rupture in northeast Mexico by Alcalá Briones, Ricardo Daniel, Villarreal Silva, Eliud Enrique, Flores Benavides, Lydia Itzel, Ramos Delgado, César, Martínez Bustamante, Daniel, Martínez Ponce de León, Ángel Raymundo

“…Whether seasonal or meteorological factors influence the likelihood of aneurysm rupture is controversial. An observational, retrospective, cross-sectional and non-comparative study of male and female patients over 18 years old who were admitted to our unit in northeast Mexico with the diagnosis of spontaneous SAH due to aneurysmal rupture from January 2014 to March 2020. …”
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Vínculo de la teoría práctica para el desarrollo de competencias mediante la asignatura de Física en el Nivel Medio Superior de la UANL by Ruiz Mendoza, Juan Carlos, Rodríguez Morales, Gustavo

“…El principal sustento consiste en que en una misma actividad docente: se observe, se modele, se interprete, se describa, se argumente, se interactúe con el fenómeno físico y se verifique lo estudiado. …”
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Vínculo de la teoría práctica para el desarrollo de competencias mediante la asignatura de Física en el Nivel Medio Superior de la UANL. by Ruiz Mendoza, Juan Carlos, Rodríguez Morales, Gustavo

“…El principal sustento consiste en que en una misma actividad docente: se observe, se modele, se interprete, se describa, se argumente, se interactúe con el fenómeno físico y se verifique lo estudiado. …”
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Towards experiential representation in architecture by De la Fuente Suárez, Luis Alfonso

“…On the one hand, representations that pretend to copy reality produce in the observers detailed visual experiences; on the other hand, certain representations reflect the experiences themselves after they have been produced; they represent buildings as they are transformed by experience. …”
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Creación de valor en las empresas a través de las prácticas de la Responsabilidad Social Empresarial by Romero-Tamez, María Monserrat, Treviño-Saldivar, Eduardo, Saldivar Del Angel, Roxana

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Body composition by dual X-ray absorptiometry in Mexican schoolchildren with or without obesity by O Cavazos, Manuel Enrique de la, Treviño Garza, Consuelo, Rodríguez Balderrama, Isaías, Villarreal Pérez, Jesús Zacarías, Elizondo Omaña, Rodrigo Enrique, Montes de Oca Luna, Roberto, Sánchez Gónzalez, S., Cantú Moreno, Daniel, Rodríguez Calderon, P., Argente Oliver, Jesús

“…Material and methods: We performed an observational, analytical, comparative, cross-sectional study of 80 Mexican schoolchildren who attended the Nutrition Clinic of the Pediatric Medical Center in Monterrey, Mexico during the period of January to April 2005. …”
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Application of the ATLAS score for evaluating the severity of Clostridium difficile infection in teaching hospitals in Mexico by Hernández García, Raúl, Garza González, Elvira, Miller, Mark, Arteaga Muller, Giovanna, Galván de los Santos, Alejandra María, Camacho Ortiz, Adrián

“…Methods: Prospective observational study. Results: Patients included had a median of 48 years of age, 54% of male gender and an average of 24.3 days length of hospital stay. …”
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