53 research outputs found

    Aplicación de capacidades digitales al proceso de cotización de una MIPyME integradora

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    Technological advances in recent years have been driving the adoption of digital transformation in MSMEs in Mexico. However, the COVID-19 pandemic has forced many of them to migrate to a new work model where Information Technologies play an extremely important role for their competitiveness, since they favor their growth by allowing them to improve and streamline their processes, operations and different activities of the organization. This article presents the design and implementation of a quotation system for IDMOVIL, an integrative MSME located in H. Matamoros, Tamaulipas. The main contribution of this work can be found in the combination of free digital tools so that the organization takes advantage of their capabilities to offer a more agile quotation service to the client, and more efficient activities in the purchasing department. With the deployment of this low-cost system, the organization managed to reduce operating times by 80%, in addition to moving towards the digital transformation that the contemporary world urgently demands.Los avances tecnológicos de los últimos años han venido impulsando la adopción de la transformación digital en las MIPyMES en México. Sin embargo, la pandemia de COVID-19 ha obligado a muchas de ellas a migrarse a un nuevo modelo de trabajo donde las Tecnologías de la Información desempeñan un rol sumamente importante para su competitividad ya que favorecen a su crecimiento al permitir mejorar y agilizar sus procesos, operaciones y diferentes actividades de la organización. En este artículo se presenta el diseño e implementación de un sistema de cotización para IDMOVIL, una MIPyME integradora ubicada en H. Matamoros, Tamaulipas. La principal aportación de este trabajo radica en la combinación de herramientas digitales gratuitas a fin de que la organización aproveche las capacidades de éstas para ofrecer un servicio de cotización más ágil al cliente, y actividades más eficientes en el departamento de compras. Con el despliegue de este sistema de bajo costo, la organización logró reducir los tiempos operativos en un 80%, además de encaminarse a la transformación digital que demanda urgentemente el mundo contemporáneo

    Vertical cliffs harbor millennia‐old junipers in the Canary Islands

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    Producción CientíficaThe ability of trees to endure for millennia, surpassing human lifetimes, and survive the most destructive human and natural hazards is astonishing. But what is the ecological role of tree longevity? Are old trees more than impressive nature wonders? Can ancient trees become effective genetic reservoirs able to recover bygone ecosystems? Oceanic islands are ideal ecosystems to address these questions, as they have experienced recent and intense human-induced environmental changes. In the Canary Islands in the northeastern Atlantic Ocean, human colonization since the fifth century BCE (Rodríguez-Varela et al., 2017) added logging, fire, and grazing pressure to a territory already experiencing regular volcanic activity. Tenerife Island is the most populated island of the Canary Islands archipelago and harbors the largest subalpine ecosystems in the entire Macaronesian Biogeographic Region. Woodlands in the Tenerife subalpine environment were once formed by the Canary Island juniper (Juniperus cedrus Webb. & Berthel.; hereafter juniper; Machado & Galván, 2012, García-Cervigón et al., 2019), but historical human pressure restricted its distribution to inaccessible spots, away from human activity, such as cliffs. [parte del texto]Comunidad de Madrid, Grant/Award Number: REMEDINAL TE-CM (S2018/EMT-4338)Junta de Castilla y León-Consejería de Educación, Grant/Award Numbers: (VA113G19), (VA171P20) y (IR2020-1-UVA08)Ministerio de Ciencia e Innovación, Grant/Award Numbers: LAUREL (PID2019-109906RA-I00), (PRE2018-084106) and PROWARM (PID2020-118444GA-100)Ministerio de Economía, Industria y Competitividad. Grant/Award Number: (IJC2019-040571-I)Secretaría de Estado de Investigación, Desarrollo e Innovación, Grant/Award Number: spRING (CGL2017-87309-P

    Physical characterization of sunflower seeds dehydrated by using electromagnetic induction and low-pressure system

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    Drying is a widely used food preservation process in which water removal minimizes much of the moisture that causes deterioration reactions that impact the bioproduct quality. The objects of studying are high oleic sunflower seeds which are recognized as a worldwide source of edible oil; consequently, they have significant importance on health and food security. This work presents part of the results of a systematic study to compare the affectations on the several physical parameters of sunflower seeds and kernels with the Thermo-Solar Dehydration method (TSD) compared to Dehydration with Electromagnetic Induction at Low Pressures (DEMILP), finding that the in the last one the time to reach the 8% of the total moisture content was 2.5 times shorter, interesting physical effects and an increment of 5% in the volumetric expansion coefficient, reflected in a reduction of the cut resistance (Dehull) of 0.5KgF significant advantages for the food drying industry

    Satisfacción laboral intrínseca y engagement en personal de servicio social profesional de enfermería

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    The intrinsic job satisfaction is perceived like a sentiment associated with the aspects that employees manifest in an emotional manner, among which stands out the engagement, which in turn is reflected as happiness at workplace. Analyze the adjustment between internal structural relationships of intrinsic job satisfaction with the engagement labor factors: vigor, dedication and absorption. Cross-sectional study through surveys applicated to personnel professional nursing social service from northern Mexico. The structural equation model showed the intrinsically job satisfaction foretells vigor, dedication and absorption, engagement factor The engagement or intrinsic job satisfaction has a positive association with vigor, dedication and absorption with the nursing professional in their work activities, elevating the happiness in the workplace.La satisfacción laboral intrínseca es percibida como un sentimiento asociado con aspectos que se manifiestan de manera emocional en el empleado, entre las que destaca el engagement, que a su vez se refleja en la felicidad en el trabajo. Analizar el ajuste de las relaciones estructurales internas de la satisfacción laboral intrínseca con los factores del engagement en el trabajo: vigor, dedicación y absorción Estudio transversal a través de cuestionarios aplicados a personal de servicio social profesional de enfermería del norte de México. El modelo de ecuaciones estructurales mostró que la satisfacción laboral intrínseca predice el vigor, la dedicación y la absorción, factores del engagement La motivación o satisfacción laboral intrínseca se asocia positivamente con el vigor, la dedicación y el involucramiento del personal de enfermería en su quehacer laboral, todo ello eleva la felicidad en el trabajo

    Effect of Sodium Fluoride Ingestion on Malondialdehyde Concentration and the Activity of Antioxidant Enzymes in Rat Erythrocytes

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    Fluoride intoxication has been shown to produce diverse deleterious metabolic alterations within the cell. To determine the effects of sodium fluoride (NaF) treatment on malondialdehyde (MDA) levels and on the activity of antioxidant enzymes in rat erythrocytes, Male Wistar rats were treated with 50 ppm of NaF or were untreated as controls. Erythrocytes were obtained from rats sacrificed weekly for up to eight weeks and the concentration of MDA in erythrocyte membrane was determined. In addition, the activity of the enzymes superoxide, dismutase, catalase, and glutathione peroxidase were determined. Treatment with NaF produces an increase in the concentration of malondialdehyde in the erythrocyte membrane only after the eight weeks of treatment. On the other hand, antioxidant enzyme activity was observed to increase after the fourth week of NaF treatment. In conclusion, intake of NaF produces alterations in the erythrocyte of the male rat, which indicates induction of oxidative stress

    Absence of molecular evidence of Leptospira spp. in urine samples collected from rodents captured in Yucatán, México

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    Leptospira spp. is a spirochete bacteria, causal agent of leptospirosis, zoonotic disease endemic in México that represents a serious public health and veterinary problem. Rodents are recognised as the most important reservoirs of this bacteria, which is transmitted mainly through direct or indirect contact with the Leptospira spp. excreted in the urine of infected individuals. Theaim of this study was to evaluate the circulation of Leptospira spp. in urine samples of wild and synanthropic rodents from Yucatán, México. Eighty-four rodents were captured in the community of Cenotillo, Yucatán. Twenty-six urine samples were collected from the bladder and were used in the total DNA extraction. The identification of Leptospira spp. was intended through the polymerase chain reaction test in its endpoint variant. No evidence of Leptospira spp. was found in the urine samples. It is necessary to use other tissues for the identification of Leptospira spp., before concluding that the rodents used in the present study are not reservoirs of this bacteri

    Encapsulation and release characteristics of glibenclamide loaded calcium-alginate beads

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    The aims of this study were to formulate calcium-alginate beads containing glibenclamide, characterize the resulting microparticles, evaluate the release characteristics of this type of delivery system in an in vitro dissolution test, and compare it with two commercially available trademarks (Daonil® and Glibetab®). We obtained glibenclamide loaded calcium-alginate beads with a rough surface and a particle size between 150-200 µm. For the in vitro dissolution test Daonil® at 45 min showed a Q > 70%, whereas Glibetab® and glibenclamide calcium-alginate beads a Q < 70%; in spite of that glibenclamide calcium-alginate beads showed significant release properties
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