From Prosumer to “Prodesigner”: Participatory News Consumption

New democratic participation forms and collaborative productions of diverse audiences have emerged as a result of digital innovations in the online access to and consumption of news. The aim of this paper is to propose a conceptual framework based on the possibilities of Web 2.0. Outlining the construction of a “social logic”, which combines computer and communicative logics, the conceptual framework is theoretically built to explore the evolution of news consumption from a pure circulation of designed products towards a global conversation of proactive news designers. Then, the framework was tested using an empirical database built by the Pew Research Centre, which investigates the future of the news industry, through a large-scale survey with adults. Results show significant differences (by age, gender and educational level) in the forms of participation, access and consumption of news. However, whilst immersed in the culture of Web 2.0 there is a low-level of user participation in news production; far from being proactive news designers, findings suggest that citizens still located in the lower participatory levels of our conceptual framework. Conclusions suggest there is a need for media education providers to carry out training initiatives according to the social logic possibilities through proposed guidelines

Overview of low GWP mixtures for the replacement of HFC refrigerants: R134a, R404A and R410A

The current European F-gas regulation establishes restrictions in the use of fluoride refrigerants with a high global warming potential (GWP) in applications of refrigeration and air conditioning (RAC) systems. Moreover, a gradual limitation on the GWP weight of the fluoride refrigerants placed on the market is ongoing and will end with approximately one-fifth of today's offer. In this context, many of the RAC systems operate with refrigerants R134a, R404A, and R410A that have GWP values of 1300, 3943 and 2088, respectively, are being forced to be replaced by environmentally friendly alternatives, like hydrofluoroolefin (HFO) refrigerants and their mixtures with hydrofluorocarbons (HFC), which can be designed to present intermediate characteristics and become the ideal candidate many RAC applications. This work presents the most recent HFC/HFO/HC/R744 refrigerant mixture options for an alternative to the refrigerants mentiond above and compares their energetic and performance with the early developed mixture prototypes

Evaluation of Different Concentrations of Nitrogen for Tomato Seedling Production (Lycopersicon esculentum Mill.)

This study was aimed at evaluating the different concentrations of nitrogen for tomato seedling production (Lycopersicon esculentum Mill.), hybrid Loreto. Five concentrations of nitrogen were analyzed: 0, 4, 8, 12 and 16 mEq / L, using as a basis the Steiner nutrient solution. A pilot randomized block design was used with six replications and five treatments. Thirty-five days after sowing, the following variables were analyzed: seedling height, stem diameter, fresh stem weight, fresh leaf weight, leaf area, dry steam weight, dry leaf weight, dry root weight and total nitrogen content. An ANOVA analysis (p <0.05) with post-hoc Tukey test was performed to compare each treatment variables. The results showed that the increase in the concentration of nitrogen has a positive effect on organ growth. The treatment with the highest values in the morphological variables was 16 mEq / L, which shortened the production time of seedlings ready for transplant

Evaluation of Different Concentrations of Nitrogen for Tomato Seedling Production (Lycopersicon esculentum Mill.)

This study was aimed at evaluating the different concentrations of nitrogen for tomato seedling production (Lycopersicon esculentum Mill.), hybrid Loreto. Five concentrations of nitrogen were analyzed: 0, 4, 8, 12 and 16 mEq / L, using as a basis the Steiner nutrient solution. A pilot randomized block design was used with six replications and five treatments. Thirty-five days after sowing, the following variables were analyzed: seedling height, stem diameter, fresh stem weight, fresh leaf weight, leaf area, dry steam weight, dry leaf weight, dry root weight and total nitrogen content. An ANOVA analysis (p <0.05) with post-hoc Tukey test was performed to compare each treatment variables. The results showed that the increase in the concentration of nitrogen has a positive effect on organ growth. The treatment with the highest values in the morphological variables was 16 mEq / L, which shortened the production time of seedlings ready for transplant

MODELACIÓN DE LA PARTICIÓN DE LLUVIA EN ESPECIES ARBÓREAS Y ARBUSTIVAS DE CLIMA MEDITERRÁNEO

[EN] The study of rainfall interception by the vegetation canopy is of great importance in the water balance of watersheds, because much of the precipitation returns to the atmosphere as evaporation. This implies that only a percentage of the amount of rain precipitated during an event will be part of the flow of the basin, either as surface or groundwater flows. The aim of this work has been to study the Rutter and Gash interception models and to apply them to the predominant vegetation in the watershed of "The Cabril", Southern Spain, including: scrub, composed mostly of rockrose (Cistus ladanifer), and arboreal masses of pine trees (Pinus pinea). Gross rainfall, throughfall and stemflow were measured in these species over four years (from October 2010 to June 2014). The results show that the interception loss is higher in the pine stand (27% of gross rainfall) than in the cistus stand (17% of gross rainfall). The Rutter analytical model modified by Valente gave the best results, since the differences between the observed measures and the simulated measures were lower 2%.[ES] El estudio de la intercepción de la lluvia por el dosel de la vegetación es de gran importancia en el balance hídrico de las cuencas. Gran parte de la precipitación incidente vuelve a la atmósfera en forma de evaporación, esto implica que sólo un porcentaje de la cantidad de lluvia que cae durante un evento formará parte del caudal de la cuenca, ya sea como caudal superficial o subterráneo. El objetivo de este trabajo ha sido el estudio de los modelos de interceptación de Rutter y Gash y su aplicación a dos especies predominante en la vegetación de la cuenca de "El Cabril", en el sur de España, como son el matorral, compuesto en su mayoría de jaras (Cistus ladanifer) y el pino (Pinus pinea). Se midió la precipitación incidente, la trascolación y la escorrentía cortical en ambas especies durante cuatro años (entre octubre de 2010 y junio de 2014). Los resultados muestran que la pérdida de interceptación es mayor en el pino (29.6% de la precipitación incidente) que en la jara (17% de la precipitación incidente). El modelo analítico de Rutter modificado por Valente ofreció los mejores resultados, siendo las diferencias entre las medidas observadas y las simuladas inferiores al 2%.Pérez Arellano, R.; Serrano Gómez, A.; Roldan Cañas, J.; Moreno Pérez, M. (2015). MODELACIÓN DE LA PARTICIÓN DE LLUVIA EN ESPECIES ARBÓREAS Y ARBUSTIVAS DE CLIMA MEDITERRÁNEO. En XXXIII CONGRESO NACIONAL DE RIEGOS. Valencia 16-18 junio de 2015. Editorial Universitat Politècnica de València. https://doi.org/10.4995/CNRiegos.2015.1434OC