LA GIG ECONOMY EN EL SERVICIO DE ENTREGA DE ALIMENTOS A DOMICILIO Y EL ANALISIS DE SU EVOLUCION

El presente trabajo identifica y analiza las condiciones en las que desempeñan su actividad los trabajadores del sector de entrega de alimentos, el llamado sector food delivery, así como la evolución seguida tras la implantación de la legislación que actualmente enmarca el sector.Como punto de partida se describe el modelo de economía basado en las tecnologías que sustentan este sector, la “Gig Economy”, analizando posteriormente el sector food delivery como parte central del presente trabajo, detallando, a continuación, el funcionamiento de la plataforma, Glovo. Este sector experimentó un crecimiento muy importante durante la crisis sanitaria por Covid-19, manteniendo posteriormente su expansión.Por último, se dedica un apartado al análisis del marco legal que regula estas relaciones laborales, la Ley 12/2021, de 28 de septiembre, comúnmente conocida como ley rider que, aun después de su entrada en vigor, no ha conseguido eliminar las discrepancias existentes hasta la fecha.<br /

Instagram como herramienta de aprendizaje en el aula universitaria

[EN] The growing interest and use of Instagram as a marketing tool is a great opportunity to include it in learning processes related to this area. This research is based on the creation of an Instagram account for a subject of a Marketing and Market Research University Degree. The study, conducted over two years, describes the evolution of students from a passive role, as mere passive users of the account of the subject, to a more active role, in which they managed the account and generated content. In this way, the project contributes to analyze the evolution of an activity that tries to renew the traditional pedagogical processes and expand the temporal and spatial focus of the student towards a more practical orientation. Results suggest that students perceive a greater complexity in the activity when they administer the Instagram account. However, students also perceive higher levels of satisfaction and activity recommendation when they are in charge of managing the account and creating the content. In addition, managing the account in the social network also contributes to improving learning outcomes in transversal competences such as the use of digital tools and the promotion of creativity.[ES] El creciente interés y uso de Instagram como herramienta de marketing supone una oportunidad para los procesos de aprendizaje afines a éste área. Esta investigación se basa en la creación de una cuenta de Instagram para una asignatura del Grado universitario de Marketing e Investigación de Mercados. El estudio, realizado durante dos años, describe la evolución de 2019, Universitat Politècnica de València Congreso In-Red (2019) Instagram como herramienta de aprendizaje en el aula universitaria los estudiantes desde un rol pasivo, siendo meros usuarios pasivos de la cuenta de la asignatura, a un rol más activo, en el que administraban la cuenta y generaban contenidos. De esta manera, el proyecto contribuye a analizar la evolución de una actividad que trata de renovar los procesos pedagógicos tradicionales y expandir el enfoque temporal y espacial del estudiante hacia una orientación más práctica. Los resultados sugieren que los estudiantes perciben una mayor complejidad en la actividad cuando administran la cuenta de Instagram. Sin embargo, los estudiantes también perciben niveles más altos de satisfacción y recomendación de la actividad cuando son los encargados de gestionar la cuenta y crear el contenido. Además, administrar la cuenta en la red social también contribuye a mejorar los resultados de aprendizaje en competencias transversales tales como el uso de herramientas digitales y el fomento de la creatividad.Belanche, D.; Lozano, N.; Perez-Rueda, A. (2019). Instagram como herramienta de aprendizaje en el aula universitaria. En IN-RED 2019. Congreso de Innovación Educativa y Docencia en Red. Editorial Universitat Politècnica de València. 198-210. https://doi.org/10.4995/INRED2019.2019.10371OCS19821

Common variants in Alzheimer's disease and risk stratification by polygenic risk scores.

Funder: Funder: Fundación bancaria ‘La Caixa’ Number: LCF/PR/PR16/51110003 Funder: Grifols SA Number: LCF/PR/PR16/51110003 Funder: European Union/EFPIA Innovative Medicines Initiative Joint Number: 115975 Funder: JPco-fuND FP-829-029 Number: 733051061Genetic discoveries of Alzheimer's disease are the drivers of our understanding, and together with polygenetic risk stratification can contribute towards planning of feasible and efficient preventive and curative clinical trials. We first perform a large genetic association study by merging all available case-control datasets and by-proxy study results (discovery n = 409,435 and validation size n = 58,190). Here, we add six variants associated with Alzheimer's disease risk (near APP, CHRNE, PRKD3/NDUFAF7, PLCG2 and two exonic variants in the SHARPIN gene). Assessment of the polygenic risk score and stratifying by APOE reveal a 4 to 5.5 years difference in median age at onset of Alzheimer's disease patients in APOE ɛ4 carriers. Because of this study, the underlying mechanisms of APP can be studied to refine the amyloid cascade and the polygenic risk score provides a tool to select individuals at high risk of Alzheimer's disease

Developing economic thresholds for onion thrips in Honduras

Abstract Seasonal abundance and effect on onion yield reduction were studied for onion thrips, Thrips tabaci Lindeman, for two consecutive seasons (dry and rainy) to develop economic thresholds (ET) in Honduras. Overall, thrips populations were highest during the dry season, with average thrips per leaf per day 5.2 times higher than during the rainy season. In the two onion cultivars tested (Granex 429 s and Texas Grano 438 s ), thrips densities were similar, but Texas Grano 438 s showed 30% more yield reduction as a result of thrips damage than Granex 429 s . ETs were calculated using four different methods based on the equilibrium between cost of thrips management and profits losses (based on either thrips densities or an action threshold (AT)), maximizing net profits derived from thrips management, and maximizing the rate of return of thrips management. Thrips infestations below 1.0 thrips per leaf per day did not appear to affect yield and during the rainy season thrips populations were always below this economic injury level. However, during the dry season our data indicate farmers should use an AT between 0.5 and 1.6 thrips per leaf, depending on the particular agronomic, climatic and market conditions.

Diseño y construcción de un prototipo de potenciostato galvanostato para el laboratorio de corrosión de la escuela de ingeniería metalúrgica

The current circumstances motivate the University as an axis of regional development, to propose alternatives that enable it to develop dynamically and as a manager of its own evolution. It is thus making a first attempt to implement policies of import substitution and strategies to minimize the cost of equipment, (E3T) and of Metallurgical Engineering and Materials Science (EIMCM), are currently developing a project for the construction of UIS equipment, which will allow the completion of laboratory activities and that can be reviewed and repaired on the spot. The present article explains the process followed for the design and construction of a first prototype to be implemented in the corrosion laboratory of the EIMCM, which has been called the Galvanostat Autonomous Power System (SPGA). An Autonomous Galvanostat Potentiostat System is defined as an equipment that allows to perform electrochemical tests for purposes of assessing corrosion in a material; either by supplying a controlled potential difference and by sensing the current flowing through an electrochemical cell (Potentiostat mode) or by supplying a controlled current by sensing the potential difference at the terminals of the cell (Galvanostat mode), automatically recording the values ​​at length of the test, indicating abnormal situations and deactivating the equipment when the conditions so require, also offering the possibility of transmitting the data to a pey and generating the visualization of the data to allow observations and conclusions about the test.Las actuales circunstancias motivan a la Universidad como eje de desarrollo regional, a plantearalternativas que lepermitan desenvolverse con dinamismo y como gestora de su propia evolución.Es así que haciendo un primer intento por aplicar políticas de substitución de importaciones yestrategias para minimizar el costo de equipos, de su mantenimiento y de su reparación, decomún acuerdo las escuelas de Ingeniería Eléctrica, Electrónica y Telecomunicaciones (E3T) yde Ingeniería Metalúrgica y Ciencia de Materiales (EIMCM), están desarrollando actualmenteun proyecto para la construcción de equipos UIS, que permitan realizar actividades delaboratorios y de investigación que puedan ser revisados y reparados in situ. Elpresente artículoexpone el proceso seguido para el diseño y construcción de un primer prototipo para serimplementado en el laboratorio de corrosión de la EIMCM, el cual se ha denominado SistemaPotenciostato Galvanostato Autónomo (SPGA). Un Sistema Potenciostato Galvanostato Autónomo se define como un equipo que pennite realizarpruebas electroquímicas con propósitos de valorar la corrosión en un material; ya seasuministrando una diferencia de potencial controlada y sensando la corriente que circula através de una celda electroquímica (modo Potenciostato) o suministrando una corrientecontrolada sensando la diferencia de potencial en las terminales de la celda (modo Galvanostato), registrando en fonna automática los valores a lo largo de la prueba, indicandosituaciones anormales y desactivando el equipo cuando las condiciones así lo requieran, ofreciendoademás la posibilidad de transmitir los datos a un pey generar la visualización de los datos parapermitir hacer observaciones y establecer conclusiones acerca de la prueba.

Nat Commun

Genetic discoveries of Alzheimer's disease are the drivers of our understanding, and together with polygenetic risk stratification can contribute towards planning of feasible and efficient preventive and curative clinical trials. We first perform a large genetic association study by merging all available case-control datasets and by-proxy study results (discovery n = 409,435 and validation size n = 58,190). Here, we add six variants associated with Alzheimer's disease risk (near APP, CHRNE, PRKD3/NDUFAF7, PLCG2 and two exonic variants in the SHARPIN gene). Assessment of the polygenic risk score and stratifying by APOE reveal a 4 to 5.5 years difference in median age at onset of Alzheimer's disease patients in APOE ɛ4 carriers. Because of this study, the underlying mechanisms of APP can be studied to refine the amyloid cascade and the polygenic risk score provides a tool to select individuals at high risk of Alzheimer's disease

Common variants in Alzheimer’s disease and risk stratification by polygenic risk scores

Genetic discoveries of Alzheimer’s disease are the drivers of our understanding, and together with polygenetic risk stratification can contribute towards planning of feasible and efficient preventive and curative clinical trials. We first perform a large genetic association study by merging all available case-control datasets and by-proxy study results (discovery n = 409,435 and validation size n = 58,190). Here, we add six variants associated with Alzheimer’s disease risk (near APP, CHRNE, PRKD3/NDUFAF7, PLCG2 and two exonic variants in the SHARPIN gene). Assessment of the polygenic risk score and stratifying by APOE reveal a 4 to 5.5 years difference in median age at onset of Alzheimer’s disease patients in APOE ɛ4 carriers. Because of this study, the underlying mechanisms of APP can be studied to refine the amyloid cascade and the polygenic risk score provides a tool to select individuals at high risk of Alzheimer’s disease