Artículo en revista de investigación: Envíos recientes
Mostrando ítems 541-560 de 946
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Development of a descriptive study of work stress, physical activity, eating habits and obesity in the maquiladora industry using software applications
(2020-03-09)Workers around the world face major changes in work organization and industrial relations to fulfill the demands of modern working life. The problem of work stress and obesity have become rather delicate subjects because ... -
Working Hours, Burnout and Musculoskeletal Discomfort in Middle and Senior Management of Mexican Industrial Sector
(2020-05-01)Work-related stress is one of the ten most frequent occupational health problems worldwide and precedes a variety of serious mental disorders. It occurs when employees' capabilities fail to meet job demands or when their ... -
The Impact of Environmental Factors on Academic Performance of University Students Taking Online Classes during the COVID-19 Pandemic in Mexico
(2020-11-05)The COVID-19 pandemic and the quarantine period determined that university students (human resource) in Mexico had adopted the online class modality, which required them to adapt themselves to new technologies and environmental ... -
Improvement project in higher education institutions: A BPEP-based model
(2020-01-03)Improvement projects (IPs) are a fundamental element in any quality management system from any organization. In Higher Education Institutions (HEIs), IPs are constantly implemented to maintain excellence in academic and ... -
Estudio comparativo de algoritmos de súper resolución de una sola imagen basados en aprendizaje profundo
(2020-12-12)El problema de la súper resolución comprende un conjunto de métodos de procesamiento digital de imágenes; su objetivo es incrementar la resolución de las imágenes para mejorar su calidad visual. En años recientes, con el ... -
Risk Score Based on Critical Factors Associated with COVID-19
(2020-11-21)The rapid spread of COVID-19 among Mexican population has had a great impact on the rates of infected people and the daily confirmed deaths by the new coronavirus. As a consequence, the public and private sector response ... -
Aluminium oxide formation via atomic layer deposition using a polymer brush mediated selective infiltration approach
(2020-03-06)Area selective deposition (ASD) is an emerging method for the patterning of electronic devices as it can significantly reduce processing steps in the industry. A potential ASD methodology uses infiltration of metal precursors ... -
Identificación de Naegleria spp. y Acanthamoeba spp. en agua de fuentes de Ciudad Juárez, Chihuahua.
(2020-05-06)Free-living amoebae (AVL) are cosmopolitan protozoa capable of establishing serious parasitic infections of various kinds in humans and animals. The Acanthamoebaand Naegleriagenera have gained greater relevance since they ... -
Design and Construction of a Compact Rotary Substrate Heater for Deposition Systems
(2020-03-24)We have designed and constructed a compact rotary substrate heater for the temperature range of 25 °C to 700 °C. The heater can be implemented in any deposition system where crystalline samples are needed. Its main function ... -
Robust weighted Gaussian processes
(2020-07-09)This paper presents robust weighted variants of batch and online standard Gaussian processes (GPs) to effectively reduce the negative impact of outliers in the corresponding GP models. This is done by introducing robust ... -
A new method for assessing the utility of powder bed fusion (PBF) feedstock
(2020-01-29)Recycling metallic powders used in the additive manufacturing (AM) process is essential for reducing the process cost, manufacturing time, energy consumption, and metallic waste. In this paper, the focus is on pore formation ... -
Effect of Ag2S-BSA nanoparticle size on 3T3 fibroblast cell line cytotoxicity
(2020-03-31)Silver sulfide nanoparticles, smaller than 5 nm, are of great interest in the biomedical field due to their improved optical properties from the quantum confinement of charge carriers. The effect of silver sulfide ... -
Super-Twisting Algorithm Applied to Velocity Control of DC Motor without Mechanical Sensors Dependence
(2020-11-19)A DC motor velocity control in feedback systems usually requires a velocity sensor, which increases the controller cost. Additionally, the velocity sensor used in industrial applications presents several disadvantages ... -
Facile Synthesis of Ultrasmall, Highly Stable, and Biocompatible Gold Nanoparticles Stabilized with Lipoic Acid: Cytotoxicity and Structural Characterization
(2020-07-28)Using the colloidal method, and lipoic acid as a stabilizer, ultrasmall gold nanoparticles with an average size of 2.5 nm were synthesized. They are highly stable, have COOH functional groups, at concentrations lower than ... -
Base de datos de flujos verticales de dioxido de carbono en ecosistemas terrestres y costeros en México
(2018-08-01)El dióxido de carbono (CO2) es uno de los principales gases de efecto invernadero (GEI) cuyo incremento en la atmósfera está asociado con el calentamiento global. Con el objetivo de promover estudios de síntesis que lleven ... -
Effect of Thermal Barrier Coating on the Thermal Stress of Gas Microturbine Blades and Nozzles
(2020-09-21)Thermal barrier coatings play a key role in the operational life of microturbines because they reduce thermal stress in the turbine components. In this work, numerical computations were carried out to assess new materials ... -
Stress-strength Weibull analysis with different shape parameter B and probabilistic safety factor
(2020-11-05)Since products are subjected to a random variable stress-strength, their reliability must be determined using the stress-strength analysis. Unfortunately, when both, stress and strength, follow a Weibull distribution with ... -
In Situ Thermal-Stage Fitted-STEM Characterization of Spherical-Shaped Co/MoS2 Nanoparticles for Conversion of Heavy Crude Oils
(2020-10-27)We report the thermal stability of spherically shaped cobalt-promoted molybdenum disulfide (Co/MoS2) nano-catalysts from in-situ heating under electron irradiation in the scanning transmission electron microscope (STEM) ... -
Reducing The Effective Dose of Cisplatin Using Gold Nanoparticles as Carriers
(2020-03-30)Nanotechnology is a frequent treatment for cancer. Nanomaterials are the vehicles which deliver drugs in smaller but equally effective quantities. The aim of this investigation is to synthesize gold nanoparticles, functionalize ...