Light distribution on <i>citrus canopy</i> affects physiological parameters and fruiting pattern

Light interception by the orange tree canopy during flower bud differentiation and subsequent flowering and fruit setting has been monitored by continuous data recording from 48 silicon cells distributed in different canopy zones. Two experimental conditions have been tested: trees artificially shaded by a black nylon net cage, and non-shaded trees. Observations were made on the total radiation accumulated in the different canopy zones, and they were related to photosynthetic activity, stomatal conductance) flowering and fruiting pattern, and fruit quality. The different light distribution affected both photosyntesis and stomatal conductance: in fact, they were both drastically reduced in shaded trees, and a significant decrease was also found in both shaded and unshaded trees in relation to different canopy zones. A significant decrease of flowering and fruit setting was found from the top of the canopy to the bottom and from outside to inside, in relation to the different amount of radiant energy availability. Finally significant differences were found on fruit quality

Gestión de inventarios de los equipos POINT OF SALE y su incidencia en la rentabilidad económica de la empresa PIC Trujillo

La empresa PIC Trujillo se dedica al rubro de la compra/venta de equipos “Point of Sale” para su comercialización, los cuales se dividen en Full, Pro y Junior. En la presente tesis, se tratará de calcular la cantidad de pedido a solicitar a inicio de mes, a fin de evitar el desabastecimiento de productos e inconformidad con el cliente, problemática que origina que la organización no cumpla con las demandas solicitadas ni el tiempo de entrega predeterminado con el cliente. Según los datos históricos de la demanda aportados por el gerente, Agosto 2020 a Julio 2021, la tendencia registrada entre dichos meses nos han ayudado a identificar que el método a utilizar sería el de promedio móvil ponderando (n=3), realizando así el pronóstico de la demanda desde Agosto 2021 a Marzo 2022. Se propuso a la empresa trabajar con el modelo de cantidad de periodo fijo (P), con el fin de calcular la cantidad de pedido adecuada de los equipos POS y así, aumentar la rentabilidad económica. Este modelo nos ayudará a optimizar los costos de pedido, los costos de envío y los costos de déficit y sobre stock. Para su cálculo fue necesario recopilar la información de la demanda mensual promedio, la desviación estándar de la demanda, el nivel de confianza (z = 2.05), el inventario actual, el tiempo de entrega del proveedor y el tiempo de revisión de inventario. Finalmente, se concluye que al aplicar este modelo P en los meses de Agosto 2021 a Marzo 2022, la rentabilidad económica mejoró a un 82%, esta mejora se debe a la correcta administración del sistema de gestión de inventarios para la empresa.The company PIC Trujillo is dedicated to the business of buying / selling “Point of Sale” equipment for its commercialization, which are divided into Full, Pro and Junior. In this thesis, we will try to calculate the order quantity to be requested at the beginning of the month, in order to avoid the shortage of products and disagreement with the client, a problem that causes the organization not to comply with the requested demands or the time of default delivery with customer. According to the historical demand data provided by the manager, August 2020 to July 2021, the trend registered between those months has helped us to identify that the method to use would be the moving average weighting (n = 3), thus making the forecast of demand from August 2021 to March 2022. The company was proposed to work with the fixed-period quantity model (P), in order to calculate the appropriate order quantity for the POS equipment and thus increase economic profitability. This model will help us optimize order costs, shipping costs, and shortfall and overstock costs. For its calculation, it was necessary to collect the information of the average monthly demand, the standard deviation of the demand, the confidence level (z = 2.05), the current inventory, the supplier delivery time and the inventory review time. Finally, it is concluded that when applying this P model in the months of August 2021 to March 2022, the economic profitability improved to 82%, this improvement is due to the correct administration of the inventory management system for the companyTesi

Learning and playing in Web 3.0: Evidence from Serious Games in Higher Education

Educational institutions are rapidly rethinking their pedagogical models and approaches to teaching and learning, increasingly adapting to traits and characteristics of learners. Personalization of learning, participative activities, and online interaction are changing learning models and approaches. In this chapter we will look at the phenomenon of learning through the lens of the participatory paradigm through which we interpret new paths of learning. Evidences from two Serious Games will be presented, arguing that the playful aspect embodied in these games is key to learners’ engagement. Implications for teaching and learning practices will be discussed in relation to potential directions that participatory approaches might take

Seguridad industrial y desempeño laboral de los trabajadores en el área de bolsas plásticas del Consorcio Reciclador del Norte S.A.C., 2019

El presente estudio tuvo como objetivo general determinar la relación existente entre seguridad industrial y el desempeño laboral de los trabajadores del área de bolsas plásticas del Consorcio Reciclador del Norte S.A.C., 2019. Para su desarrollo se trabajó con una muestra de 20 trabajadores del área de reciclado de bolsas plásticas; la recolección de datos se realizó mediante la técnica de la encuesta empleando un cuestionario con escala de Likert como instrumento. Se evidencia en los resultados con un coeficiente rho de 0.791 y una significancia de 0.000 la existencia de una relación alta entre la variable seguridad industrial y la variable desempeño laboral

Acceptance and safety of the intradermal influenza vaccine among the elderly in Italy: An on-field national study

Introduction: An observational multicenter study was carried out in Italy, to evaluate the acceptability and safety of the new intradermal (ID) influenza vaccine (IntanzaR, Sanofi Pasteur SA, Lyon, France) among subjects aged 65 60 years, compared with that of other intramuscular (IM) influenza vaccines. Compliance with the use of the ID vaccine by healthcare professionals was also assessed. Methods: A previously validated and self-administered questionnaire, Vaccinees' Perception of Injection (VAPI\ua9), consisting of 21 questions, mainly focused on four dimensions (bother, arm movements, sleep, and acceptability), was administered to &gt; 1,600 individuals with spontaneous access to outpatient clinics, located in Northern, Central, and Southern Italy, to evaluate the acceptance of the vaccines. Occurrence of solicited and unsolicited side effects and of serious adverse events was assessed in a subset of subjects (n = 500), using a clinical diary filled in by vaccinees following immunization. Compliance with the new ID vaccine by healthcare professionals was investigated using an ad-hoc questionnaire. Results: A very favorable opinion concerning the acceptability of both the vaccines under survey, with the most positive answers ranging between 75.5% and 94.9%, was registered within the study population. Also the compliance by healthcare professionals (n = 130) with the novel ID vaccine was favorable. No serious adverse event occurred during the 6-month follow-up period. The frequency of solicited systemic reactions was comparable between the two study groups, while solicited local reactions were significantly higher in the ID-vaccine group than in the IM-vaccine group, even if at values lower than those reported in phase 3 clinical trials (ranges = 18.5-32.6% vs. 29.5-70.9%). These local events were mild and transient, thus without any clinical relevance. Conclusion: The novel ID influenza vaccine can be widely recommended in clinical practice, representing a useful tool to improve immunization coverage rates, and thus the control of influenza. \ua9 Springer Healthcare 2012