Resultados de búsqueda - ((((sumar OR sumoa) OR sum) OR (((some OR usuma) OR (asumen OR same)) OR auuusumooe)) OR uusuma)*

Dissection as a teaching tool: past, present, and future por Elizondo Omaña, Rodrigo Enrique, Guzmán López, Santos, García Rodríguez, María de Lourdes

“…Finally, the current practice of dissection is described for some universities in the United States and Europe, showing its use as a learning tool.…”
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Micro- and nanoporous materials capable of absorbing solvents and oils reversibly: the state of the art por Acevedo Cortez, Javier Sebastián, Kharisov, Boris I., Serrano Quezada, Thelma Elizabeth, Hernández García, Tomás Constantino

“…Also, the fabrication methods for some materials are presented and analyzed. Keywords Oil spills � Composites � Reversibility � Aerogels � Natural absorbents � Micro- and nanoporous materials…”
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Hydrothermally synthesized nanoparticles of zinc peroxide and their structural description. por García Ruíz, Alejandro, Escobedo, A., Aguilar Hernández, Alberto Issac, Esparza, Rodrigo, Pérez, R.

“…Tbis allows obtaining refined values aftbe cell parameters and the approxima.te crystallite sizes (10-20 nm) and also gives an insigbt on the morphology aftbe nanoparticle (truncated cube). Some high resolution electron microscope images are also presented and their structural results are compared with those obtained through the X -ray diffraction studies.…”
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Comparative efficiencies of the decolourisation of Methylene Blue using Fenton’s and photo-Fenton’s reactions por Melgoza, D., Hernández Ramírez, Aracely, Peralta Hernández, Juan Manuel

“…The decolourisation and mineralization of Methylene Blue azo dye (MB) under Fenton’s and photo-Fenton’s conditions have been studied. Some parameters, such as initial concentrations of iron (Fe2+) and fixed hydrogen peroxide (H2O2), were evaluated to find the optimal conditions for the efficient degradation of azo dye. …”
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Hábitos de estudio en alumnos de la licenciatura en educación por Flores Alanís, Irma María, Meza Mejía, Mónica del Carmen

“…ABSTRACT This paper explores the teaching and learning strategies of the students at the School of Education (CE) in the Faculty of Philosophy and Letters (FFyL) at Universidad Autónoma de Nuevo León (UANL). The results identify some weaknesses in their learning strategies and the non-appropriateness of the study place.…”
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A bi-objective model for the integrated frequency-timetabling problem por Avila Torres, Paulina Alejandra, Lopez Irarragorri, Fernando, Caballero Fernandez, Rafael

“…Typically, these sub-activities are done sequentially, which has some drawbacks: to overcome these drawback we propose to integrate both these sub-activities. …”
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READING AND WRITING IN THE ESL/EFL CLASSROOM INTRODUCTION por Arechiga, Sara A.

“…  A general overview of research findings and theoretical views of reading in the ESL course and its connection to writing is presented since the interest of this study is provide some theoretical basis that explains and supports the near connection between reading and writing in ESL. …”
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Improvement of Shelf Life and Sensory Quality of Pears Using a Specialized Edible Coating por Cruz, Virgilio, Rojas, Romeo, Saucedo Pompa, Saul, Martínez, Dolores G., Aguilera Carbó, Antonio Francisco, Alvarez, Olga B., Rodríguez, Raúl, Ruiz, Judith, Aguilar González, Cristóbal Noé

“…Coated pears with and without polyphenols and uncoated pears (control) were stored under the same conditions. Fruits were analyzed to evaluate changes in their physicochemical, microbiological, and sensorial properties during 30 days of storage at room temperature. …”
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Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties por Soto Parra, Daniel Enrique, Flores Zúñiga, Horacio, Cuéllar, Enrique López, Ochoa Gamboa, Raul Armando, Ríos Jara, David

“…Hardness values decrease with aging temperature for the same heat treatment time. No important changes were observed in electrical resistivity with heat treatment temperature, except at 300°C. …”
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Physicochemical, Functional, and Nutraceutical Properties of Eggplant Flours Obtained by Different Drying Methods por Rodríguez Jiménez, Jenny Rosa Elvira, Amaya Guerra, Carlos Abel, Báez González, Juan Gabriel, Aguilera González, Carlos Javier, Urías Orona, Vania, Niño Medina, Guillermo

“…All the eggplant flours showed the same trend regarding their antioxidant capacity and phenolic content in the order T2 > T4 > T1 > T3.The freezing of egg plant was found to have a negative effect on functional and antioxidant properties. …”
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Adaptation and content validity by expert judgment of the Oral Health Impact Profile applied to Periodontal Disease. por Rodríguez, Norma Idalia, Moral, José

“…The Oral Health Impact Profile (OHIP-14) was developed in Australia and the United States based on the same model and can be adapted to evaluate the impact of periodontal disease on OHRQL. …”
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Mixed sensitivity control: a non-iterative approach por Galindo Orozco, René

“…The proposed MSC is based on the minimization of the most common closed-loop sensitivity functions in low frequencies and the free-parameters of the stabilizing-controllers solve an algebraic equation of restriction that assigns the same value to the infinity-norms of the sensitivity functions at low and high-frequencies, guaranteeing robust stability and robust performance. …”
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Optimized Packing Clusters of Objects in a Rectangular Container por Romanova, Tatiana, Pankratov, Alexander, Litvinchev, Igor, Pankratova, Yu, Urniaieva, I.

“…All objects in the cluster have the same shape (different sizes are allowed) and can be continuously translated and rotated. …”
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Renal Replacement Therapy for Acute Kidney Injury in COVID-19 Patients in Latin America por Claure Del Granado, Rolando, Casas Aparicio, Gustavo, Rosa Diez, Guillermo, Rizo Topete, Lilia María, Ponce, Daniela

“…From these first reports, AKI emerges at the same time as the acute respiratory distress syndrome, and the development of AKI is usually found in patients who progress to phase 3 of the extra-pulmonary systemic hyper-inflammation syndrome [4]. …”
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Greener synthesis of chemical compounds and materials por Kharissova, Oxana V., Kharisov, Boris I., Oliva González, Cesar Maximo, Méndez, Yolanda Peña, López, Israel

“…A range of nanosized materials and composites can be produced by greener routes, including nanoparticles of metals, non-metals, their oxides and salts, aerogels or quantum dots. At the same time, such classic materials as cement, ceramics, adsorbents, polymers, bioplastics and biocomposites can be improved or obtained by cleaner processes. …”
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Cytogenetic analysis and FISH of terminal deletion of the long arm of chromosome 9 in a patient with acute promyelocytic leukemia. por Vásquez Palacio, Gonzalo, Botero, Olga, Sierra, Margarita, Tubo, Taknida, Quintero Rivera, Fabiola

“…Here we describe the second case with the same aberration, the patient, an eleven-years-old girl with APL. …”
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Aproximaciones desde los Derechos Humanos al Derecho a la Consulta Previa, y sus violaciones en Proyectos Energéticos por Guerrero Espinoza , Rosalinda, Badii, Mohammad

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A mixed integer programming model for a continuous move transportation problem with service constraints (Un método de programación mixta entera para un problema de transportació... por López, J. Fabián

“…In addition we include some dock service capacity constraints as is required on common real world operations. …”
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Global competence of employees in Hispanic Enterprises in the south of United States (Competencias globales de los empleados en las Empresas Hispanas del sur de los Estados Unidos... por Blanco Jiménez, Mónica, Rositas Martínez, Juan, Jardines Garza, Francisco Javier

“…We sent them to managers of some Hispanic enterprises who are members of the Tucson Hispanic Chamber of Commerce. …”
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Analysis of closed - loop therapy in type ii diabetes. por Olay Blanco, Ana Alejandra

“…After that, the analysis of some characteristics of the models, their role in closed-loop therapy and a case of study using a conventional control scheme are presented.…”
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