Exercici físic i persones majors: Resultats preliminars de la nostra experiència a Eivissa

[cat]La literatura científica avala que la pràctica d’exercici físic en les persones majors pot suposar uns grans beneficis, tant en el seu vessant fisicofuncional, com en l’emocional i en el social. D’aquí que les polítiques de promoció de la salut pública vagin enfocades a incentivar la seua pràctica en aquest període vital. El nostre objectiu s’ha centrat a exposar els primers resultats obtenguts en un grup de majors practicants de l’illa d’Eivissa, amb la finalitat d’anar plantejant progressivament un protocol per al bon seguiment i control dels programes d’exercici físic oferts pels centres relacionats amb les persones majors de la resta de l’illa. En aquesta primera aproximació hem pretès conèixer de primera mà les motivacions (tant inicials com de manteniment), així com el coneixement que tenen sobre les bondats derivades de la pràctica contínua d’exercici físic i la seua percepció sobre els efectes reals de practicar-ne entre les mateixes persones majors. L’anàlisi qualitativa de tota aquesta informació obtenguda dels mateixos majors resultarà de gran interès per posteriorment poder dissenyar, elaborar i implementar programes d’exercici físic de forma més ajustada a les persones majors eivissenques i de manera més emmarcada a la seua realitat psicosocial.[spa]La literatura científica avala que la práctica de ejercicio físico en las personas mayores puede suponer unos grandes beneficios, tanto en su vertiente físico-funcional, en la emocional así como en la social. De ahí, que las políticas de promoción de la salud pública vayan enfocadas a incentivar su práctica en este periodo vital. Nuestro objetivo se ha centrado en exponer los primeros resultados obtenidos en un grupo de mayores practicantes de la isla de Ibiza, con el fin de ir progresivamente planteando un protocolo para el buen seguimiento y control de los programas de ejercicio físico ofrecidos por los centros relacionados con las personas mayores del resto de la isla. En esta primera aproximación hemos pretendido conocer de primera mano las motivaciones (tanto iniciales como de mantenimiento), así como el conocimiento que tienen sobre las bondades derivadas de la práctica continuada de ejercicio físico y su percepción sobre los efectos reales de su práctica entre las propias personas mayores. El análisis cualitativo de toda esta información obtenida de los propios mayores resultará de gran interés para posteriormente poder diseñar, elaborar e implementar programas de ejercicio físico de forma más ajustada a las personas mayores ibicencas y más enmarcadas a su realidad psicosocial

The portuguese news industry’s perspectives and roles on the making of active citizens: readers’ skills to comment on the news

This article investigates the news industry’s perceptions of letters to the editor and online comments in the context of the digital world and of the challenges journalists face. Using a sample of 11 semistructured interviews with journalists and ombudsmen in Portugal, we analyse the news industry’s views on readers’ ability to comment on the news and on the industry’s possible contributions to creating critical and engaged publics. The interviewees express concern about harmful behaviours in online environments and point to differences in online and offline contexts of participation. The results, however, do not reveal a proactive attitude in the news industry as the news professionals focus on their daily work activities as a form of media education and argue that schools and the public, instead, should take the lead in these activities. To support their statements, the interviewees cite factors such as the possibilities of digital culture, the promotion of media education, the need to foster a reciprocal relation between learning and the existing forms of journalism newsroom culture.Aichi Science and Technology Foundationinfo:eu-repo/semantics/publishedVersio

Synthesis and characterization of a new nanosorbent based on functionalized magnetic nanoparticles and its use in the determination of mercury by FI-CV-ETAAS

In this work, a new chelating sorbent which employs 1,5-bis(di-2-pyridil)methylene thiocarbohydrazide as the functional group and magnetic nanoparticles (MNPs) as its support (DPTH-MNP) was synthetized and characterized. The MNPs were prepared by coprecipitation of Fe+2 and Fe+3 with NH3 and then coated with silica in order to easily bind the support and the functionalizing molecule. The aim of the synthesis of this material is applying it as a solid-phase extracting agent and evaluating its potential for the extraction and pre-concentration of trace amounts of analytes present in biological and environmental samples with on-line methods. The MNPs’ magnetic core would allow overcoming the usual backpressure problems that happen in solid-phase extraction methods thanks to the possibility of immobilizing the MNPs by applying an external magnetic field. From the study of its adsorption capacity toward metal ions, mercury and antimony were the most retained. Thus, a flow injection solid phase extraction and cold vapor generation method for mercury determination based on the use of this new chelating nanosorbent was optimized. The greatest efforts were put into the reactor design to minimize compaction and loss of nanosorbent. The knotted reactor shown in Figure 1 was chosen as the best. Then, chemical and flow variables were optimized by Central composite designs (CCDs). The method developed has showed to be useful for the automatic pre-concentration and determination of mercury in environmental and biological samples. The determination was performed using electrothermal atomic absorption spectrometry (ETAAS). Under the optimum conditions, pH 5 and 120 s preconcentration time, the enrichment factor was 5.33; the detection limit (3σ) was 7.8 ng L-1; the determination limit (10σ) was 99 ng L-1; and the precisions (calculated for 10 replicate determinations at a 1 and 5 µg L-1 standards) were 1.7 and 1.9 % (RSD), respectively. Two linear calibration graphs were obtained, from the determination limits to 10 µg L-1 and from 10 to at least 50 µg L-1. From the comparison with other similar methods found in the bibliography, the detection limit and precisions calculated with our method were better. In order to evaluate the accurate and applicability of the method, the analysis of five certified samples LGC 6016 estuarine water, TMDA 54.4 fortified lake water, SRM 2976 mussel tissue, TORT-1 lobster hepatopancreas and DOLT-1 dogfish liver by standard addition and external calibration, were addressed. The results showed good agreement between the certified values, or added amounts of mercury, and the found concentrations. The method was successfully applied to the determination of mercury in sea-water samples collected in the Málaga Bay.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Simultaneous environmental and economic process synthesis of Isobutane Alkylation

This multidisciplinary study concerns the optimal design of processes with a view to both maximizing profit and minimizing environmental impacts. This can be achieved by a combination of traditional chemical process design methods, measurements of environmental impacts and advanced mathematical optimization techniques. More to the point, this paper presents a hybrid simulation-multiobjective optimization approach that at once optimizes the production cost and minimizes the associated environmental impacts of isobutane alkylation. This approach has also made it possible to obtain the flowsheet configurations and process variables that are needed to manufacture isooctane in a way that satisfies the above-stated double aim. The problem is formulated as a Generalized Disjunctive Programming problem and solved using state-of-the-art logic-based algorithms. It is shown, starting from existing alternatives for the process, that it is possible to systematically generate a superstructure that includes alternatives not previously considered. The optimal solution, in the form a Pareto curve, includes different structural alternatives from which the most suitable design can be selected. To evaluate the environmental impact, Life Cycle Assessment based on two different indicators is employed: Ecoindicator 99 and Global Warming Potential.Spanish Ministry of Science and Innovation (CTQ2012-37039-C02-02)

Economic and environmental assessment of directly converting CO2 into a gasoline fuel

The threat posed by Climate Change demands urgent action on finding clean energy solutions with a view to cutting fossil fuel consumption. However, a sudden stop in the use of fossil fuels is not possible without a profound disruption of the economy. This transition is expected to take several decades, and therefore every type of renewable energy should be considered as part of the solution mix. In this work, we propose including gasoline synthesized from atmospheric CO2 as one possible interim solution while the transition away from liquid fossil fuels intensifies. To that end, we have designed a novel process that produces green gasoline in one stage on an industrial scale. This contrasts with the two or three stages needed in the classical Fischer-Tropsch based processes. Furthermore, we have optimized this process through mass and heat integration, and propose three different options that make the most of the waste streams. Finally, we have studied a total of 144 realistic scenarios that take into account the origin of H2 and CO2 as well as their environmental impacts and costs. According to our findings, such a process will be capable of producing high-quality gasoline to be manufactured competitively in the near future. The significance of our findings is that it is realistic to reduce carbon emissions while also promoting the circular economy.The authors J.A.C and M.J.F.T thank Generalitat Valenciana for the financial support under the project PROMETEO 2020/064

Propuesta de un Modelo de Gestión del talento humano basado en competencias, desde la caracterización del clima organizacional en la IE Liceo Andaki de la ciudad de Pitalito Huila

En la actualidad las organizaciones educativas asumen metas de índole administrativo que puedan gestionar acciones desde la administración que propendan por mejorar la calidad de los servicios brindados y orienten al desarrollo de las políticas dictaminadas por el Ministerio de Educación Nacional a través de los entes territoriales y las Secretarias de Educación Municipal; en este mismo aspecto, las necesidades que son expresadas por la comunidad educativa sirven como línea de base para retomar los factores de riesgo que permitan desarrollar acciones desde la administración de las organizaciones para implementar las estrategias necesarias que conlleven a la mejora de las competencias del talento humano integrado a la institución. Con base a lo anterior, se busca por medio de este proyecto de investigación mejorar las capacidades y potencialidades de los docentes, desde sus propias habilidades personales, logrando aplicarlas en su desempeño diario en el aula de clases, de ahí que se aborde la gestión del talento humano basado en competencias, como una estrategia para mejorar el desarrollo integral de la IE Liceo Andaki de la ciudad de Pitalito Huila, en un inicio abordando los aspectos de tipo contextual que facilitan un acercamiento a la realidad institucional, desde su plataforma estratégica en la cual están contenidas la misión y la visión de la IE, como también permitiendo definir el estado real de la gestión del talento humano, como también, aspectos teóricos dentro del marco teórico que orienten el abordaje técnico de la gestión educativa, las competencias y su clasificación, así como el clima organizacional y la calidad de vida laboral, Consecutivamente se exponen los resultados con su respectivo análisis y cruce de resultados, para concluir con la propuesta de un modelo de gestión del talento humano basado en competencias, a partir de la medición del clima organizacional.Abstract Currently educational organizations assume administrative goals that can manage actions from the administration that tend to improve the quality of the services provided and guide the development of policies dictated by the Ministry of National Education through the territorial entities and Secretaries of Municipal Education; in this same aspect, the needs that are expressed by the educational community serve as a baseline to resume the risk factors that allow developing actions from the management of organizations to implement the necessary strategies that lead to the improvement of talent competencies human being integrated into the institution. Based on the above, it is sought through this research project to improve the capabilities and potential of teachers, from their own personal skills, managing to apply them in their daily performance in the classroom, hence the management of the human talent based on competencies, as a strategy to improve the integral development of the IE Liceo Andaki in the city of Pitalito Huila, initially addressing the contextual aspects that facilitate an approach to the institutional reality, from its strategic platform in the which are contained the mission and vision of the EI, as well as allowing to define the real state of human talent management, as well as theoretical aspects within the theoretical framework that guide the technical approach to educational management, skills and their classification , as well as the organizational climate and the quality of working life, Consecutively, the results are exposed with their respective analysis and cross-checking of results, to conclude with the proposal of a human talent management model based on competencies, based on the measurement of the organizational climate. Keywords. Administration. Motivation. Competences Integral Command Mode