Search Results - (densa OR (presente OR (compcppcppcppcppcppcppcdcdcdense OR compcppcppcppcppcppcppcdcdcdense)))

A review on the development of visible light-responsive WO3-based photocatalysts for environmental applications by Murillo Sierra, Juan Camilo, Hernández Ramírez, Aracely, Hinojosa Reyes, Laura, Guzmán Mar, Jorge Luis

“…This semiconductor has several advantages: strong absorption in the visible spectrum range, stability in acidic and oxidative conditions, low cost, and low toxicity. However, WO3 presents fast recombination of charge carriers’ and exhibits low photocatalytic activity for reduction reactions due to its conduction band potential (+0.5 V versus NHE). …”
Get full text

Migración y fronteras en el sistema migratorio mundial: contextos locales ante dilemas globales

“…En términos generales encontramos un interés por integrar diferentes dimensiones presentes en las migraciones y movilidades en la actualidad. …”
Get full text

Structural characterization of the equatorial F region plasma irregularities in the multifractal context by Joshi, Neelakshi, Rosa, Reinaldo R., Savio, Siomel, Kherani, Esfhan Alam, de Meneses, Francisco Carlos, Stephany, Stephan, Muralikrishna, Polinaya

“…In the emerging ionosphere–space–weather paradigm, investigating the dynamical properties of ionospheric plasma irregularities using advanced computational nonlinear algorithms provide new insights into their turbulent-seeming nature, for instance, the evidence of energy distribution via a multiplicative cascade. In this study, we present a multifractal analysis of the equatorial F region in situ data obtained from two different experiments performed at Alcântara (2.4∘ S, 44.4∘ W), Brazil, to explore their scaling structures. …”
Get full text

Los prestadores de servicios de salud, y la utilización de las relaciones públicas para la prevención y atención del embarazo adolescente by Céspedes del Fierro, Selene, Arango Morales, Moncerrat

“…Los resultados exponen los procesos comunicativos interinstitucionales e interpersonales presentes en los centros de salud y detectan tres áreas de oportunidad a fortalecer: la accesibilidad informativa a servicios de prevención y salud reproductiva, los servicios personales específicos de atención médica, y los instrumentos de medición de eficacia de las campañas de comunicación. …”
Get full text

Effects of copper levels on goat carcass traits and meat quality by López Puga, Jocelyn Cyan, Rico Costilla, Daniela Saraí, Sobrevilla Hernández, Gustavo, Moreno Degollado, Gustavo, Kawas Garza, Jorge R., Méndez Zamora, Gerardo

“…Cu in the goat diets was significant (P < 0.05) for meat lightness (L*) and yellowness (b*); L* values were higher (P <0.05) at 20 ppm and lower (P < 0.05) at 10 and 80 ppm; b* was highest (P < 0.05) for the 160 ppm level and lowest (P < 0.05) for 40 ppm. Meat adhesiveness presented differences (P < 0.05) between Cu levels; the 10 ppm group showed the highest value (P < 0.05) and 0 ppm the lowest value (P < 0.05). …”
Get full text

Co-Teaching: a successful factor on teacher training through collaborative practices and professional advice. by Cortez Soto, Ana Berenice, Serrato Salazar, Dan Isaí

“…The emphasis of the present study was to design a didactic proposal to help pre-service teachers to develop their teaching skills through collaboration and guidance from expert teachers on the field of linguistics and education. …”
Get full text

Chemical Composition and Biological Activities of Oregano Essential Oil and Its Fractions Obtained by Vacuum Distillation by Rostro Alanís, Magdalena de Jesús, Báez González, Juan Gabriel, Torres Álvarez, Cynthia, Parra Saldívar, Roberto, Rodríguez Rodríguez, José, Castillo, Sandra

“…Aiming to achieve the best use of this resource, the present study focuses on the characterization of separated fractions of Ooil by fractional vacuum distillation at low pressure. …”
Get full text

Application of Extractive Fermentation on the Recuperation of Exopolysaccharide from Rhodotorula mucilaginosa UANL-001L by Medina Ramírez, Carlo Franco, Castañeda Guel, Mariana Teresa, Alvarez González, Ma. Fernanda, Montesinos Castellanos, Alejandro, Morones Ramírez, José Rubén, López Guajardo, Enrique A., Gomez Loredo, Alma Elizabeth

“…However, full exploitation and commercial application of EPS has been restrained due to low yields and high production costs. In the present work, the production and separation of EPS from Rhodotorula mucilaginosa UANL-001L was attempted through extractive fermentation in order to increase EPS production while simplifying the recovery process. …”
Get full text

Electrochemical Study of Interaction between Imidazole-Based-Ionic-Liquid and Light Petroleum in Oil/Water Emulsion by Villalobos Neri, E.E., Páramo García, U., Mayen Mondragon, R., Gallardo Rivas, N.V.

“…In the present work, the binding capacity of a 1-methyl-3-hexylimidazolium p-toluenesulfonate ionic liquid to Aragon light oil within a 70/30 oil/water emulsion was studied by cyclic voltammetry. …”
Get full text

Effect of sealing treatment on the corrosion behavior of anodized AA2099 aluminum-lithium alloy by Samaniego Gámez, Pedro Oliver, Almeraya Calderón, Facundo, Martin Díaz, Ulises, Ress, Jacob, Gaona Tiburcio, Citlalli, Silva Vidaurri, Luis Gerardo, Cabral Miramontes, José Ángel, Bastidas, José María, Chacón Nava, José G., Bastidas, David M.

“…The AA2099 is widely used in aeronautical applications, thus it is essential to present good corrosion performance in chloride and acid rain environments. …”
Get full text

Corrosion behavior of Zn-TiO2 and Zn-ZnO electrodeposited coatings in 3.5% NaCl solution by Cabral Miramontes, José Ángel, Bastidas, David M., Baltazar, M.A, Zambrano Robledo, Patricia del Carmen, Bastidas, José María, Almeraya Calderón, Facundo, Gaona Tiburcio, Citlalli

“…The corrosion resistance achieved with this type of zinc-electroplating process in increased by adding nanometric materials to the electrolytic bath. In the present research, coatings were obtained by electrodeposition of pure zinc, Zn-TiO2 and Zn-ZnO nanoparticles. …”
Get full text

Direct endonasal approach with partial upper posterior septectomy. a “rescue flap” technique modification by Sotomayor González, Arturo, Díaz Martínez, Armando José, Radillo Gil, Ramón, García Estrada, Everardo, Morales Gómez, Jesús Alberto, Palacios Ortiz, Isaac Jair, Pérez Cárdenas, Samuel, Arteaga Treviño, Mauricio, Martínez Ponce de León, Ángel Raymundo

“…Results Nineteen patients were included in this report. Six patients presented transoperatory cerebrospinal fluid (CSF) leak, so a nasoseptal rescue flap was harvested. …”
Get full text

Electrochemical corrosion behavior of passivated precipitation hardening stainless steels for aerospace applications by Villegas Tovar, José Miguel, 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 Humberto, Almeraya Calderón, Facundo

“…The results indicated that there are two characteristic mechanisms that are present in the potentiodynamic polarization curves. …”
Get full text

Corrosion of Titanium Alloys Anodized Using Electrochemical Techniques by Jáquez Muñoz, Jesús Manuel, Gaona Tiburcio, Citlalli, Méndez Ramírez, Ce Tochtli, Baltazar Zamora, Miguel Ángel, Estupiñan López, Francisco H., Bautista Margulis, Raúl German, Cuevas Rodríguez, Josefina, Flores de los Ríos, Juan Pablo, Almeraya Calderón, Facundo

“…The anodized samples presented a change in Ecorr values and a higher passivation zone. …”
Get full text

Mg-Ca0.3 Electrochemical Activity Exposed to Hank’s Physiological Solution and Properties of Ag-Nano-Particles Deposits by González Murguía, José Luis, Veleva, Lucien, Rodríguez Gattorno, Geonel, Figueroa Torres, Mayra Zyzlila, Feliu, Sebastián

“…The pH change over time, the lower mass loss (≈20%), and the lower concentration of the released Mg2+ ions (≈3.6 times), as well as the lower level of the surface degradation, allowed to consider the positive effect of Ca, presenting Mg-Ca0.3 alloy with lower electrochemical activity than that of Mg. …”
Get full text

Proceso de atención nutricia en hombre adulto postoperado de esofagectomía distal aplicado por 15 días. [Caso clínico] by Mata Ramos, Andrea

“…Donde existen anomalías cromosómicas y mutación del gen TP53 presentes en los primeros estadios del adenocarcinoma de esófago. …”
Get full text

Otis, octubre 2023: crónica de un huracán no anunciado by Ramírez Fernández, Juan Alonso, Salinas Jasso, Jorge Alán, Alva Niño, Efraín

“…Un grupo de estudiantes y profesores de la Facultad de Ciencias de la Tierra de la Universidad Autónoma de Nuevo León, vivieron todo el proceso del arribo de Otis y la devastación al puerto de Acapulco, ya que estuvieron presentes por su participación en la XXXV Convención Internacional de Minería de la Asociación de Ingenieros de Minas, Metalurgistas y Geólogos de México, A.C. que tradicionalmente se lleva a cabo en ese destino turístico. …”
Get full text

Fabrication and spectroscopic investigation of sandwich-like ZnO:rGO:ZnO:rGO:ZnO structure by layer-by-layer approach by Pandiyarajan, Thangaraj, Viswanathan Mangalaraja, Ramalinga, Karthikeyan, Balasubramanian, Arulraj, Arunachalam, Gracia Pinilla, Miguel Ángel

“…The lower energy shift of near band edge (NBE) emission and reduction in the emission intensity with respect to pure ZnO nanostructures was observed. The present work provides a simple layer-by-layer approach to fabricating sandwich structures and improving the optical properties which have potential applications in various optoelectronic devices.…”
Get full text

Do Musicians with Perfect Pitch Have More Autism Traits than Musicians without Perfect Pitch? An Empirical Study by Dohn, Anders, Garza Villarreal, Eduardo A., Heaton, Pamela, Vuust, Peter

“…Here, we determine whether individual autistic traits are present in people with AP. We quantified subclinical levels of autism traits using the Autism-Spectrum Quotient (AQ) in three matched groups of subjects: 16 musicians with AP (APs), 18 musicians without AP (non-APs), and 16 non-musicians. …”
Get full text

Breeding biology of Eared Quetzals in the Sierra Madre Occidental, Mexico by González Rojas, José Ignacio, Cruz Nieto, Javier, Ruvalcaba Ortega, Irene, Cruz Nieto, Miguel A.

“…However, fewer potential predators, such as snakes and mammals, are present in the Sierra Madre than in tropical zones where most trogon species occur. …”
Get full text