983 resultados para Trails -- Catalonia -- Prades, Muntanyes de


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The waste’s rise is a problem that affects the environment as a whole and we cannot forget about it. A good waste’s management is the key to improve the future prospect, and the waste collection is key within the management activities. To find out the better way to collect wastes leads to a reduction of the social, economic and environmental cost. With the use of the Geographic Information Systems it has been intended to elaborate a methodology which allowed us to identify the most suitable places for the location of the collection containers of the different sorts of the solid urban wastes. Taking into account that different types of wastes exist, not all of them should be managed in the same way. Therefore we have to differentiate between models where we apply efficiency and models where we apply equity for the collection of wastes, bearing in mind the necessities of each waste.

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Graphics Processing Units (GPUs) are becoming popular accelerators in modern High-Performance Computing (HPC) clusters. Installing GPUs on each node of the cluster is not efficient resulting in high costs and power consumption as well as underutilisation of the accelerator. The research reported in this paper is motivated towards the use of few physical GPUs by providing cluster nodes access to remote GPUs on-demand for a financial risk application. We hypothesise that sharing GPUs between several nodes, referred to as multi-tenancy, reduces the execution time and energy consumed by an application. Two data transfer modes between the CPU and the GPUs, namely concurrent and sequential, are explored. The key result from the experiments is that multi-tenancy with few physical GPUs using sequential data transfers lowers the execution time and the energy consumed, thereby improving the overall performance of the application.

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BACKGROUND:
Evidence regarding the association of the built environment with physical activity is influencing policy recommendations that advocate changing the built environment to increase population-level physical activity. However, to date there has been no rigorous appraisal of the quality of the evidence on the effects of changing the built environment. The aim of this review was to conduct a thorough quantitative appraisal of the risk of bias present in those natural experiments with the strongest experimental designs for assessing the causal effects of the built environment on physical activity.

METHODS:
Eligible studies had to evaluate the effects of changing the built environment on physical activity, include at least one measurement before and one measurement of physical activity after changes in the environment, and have at least one intervention site and non-intervention comparison site. Given the large number of systematic reviews in this area, studies were identified from three exemplar systematic reviews; these were published in the past five years and were selected to provide a range of different built environment interventions. The risk of bias in these studies was analysed using the Cochrane Risk of Bias Assessment Tool: for Non-Randomized Studies of Interventions (ACROBAT-NRSI).

RESULTS:
Twelve eligible natural experiments were identified. Risk of bias assessments were conducted for each physical activity outcome from all studies, resulting in a total of fifteen outcomes being analysed. Intervention sites included parks, urban greenways/trails, bicycle lanes, paths, vacant lots, and a senior citizen's centre. All outcomes had an overall critical (n = 12) or serious (n = 3) risk of bias. Domains with the highest risk of bias were confounding (due to inadequate control sites and poor control of confounding variables), measurement of outcomes, and selection of the reported result.

CONCLUSIONS:
The present review focused on the strongest natural experiments conducted to date. Given this, the failure of existing studies to adequately control for potential sources of bias highlights the need for more rigorous research to underpin policy recommendations for changing the built environment to increase physical activity. Suggestions are proposed for how future natural experiments in this area can be improved.

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This document describes planned investments in Iowa’s multimodal transportation system including aviation, transit, railroads, trails, and highways. This five-year program documents $3.5 billion of highway and bridge construction projects on the primary road system using federal and state funding. Of that funding, a little over $500 million is available due to the passage of Senate File 257 in February 2015. As required by Senate File 257, this program includes a list of the critical highway and bridge projects funded with the additional revenue. Since last year’s program, a new federal surface transportation authorization bill was passed and signed into law. This authorization bill is titled Fixing America’s Surface Transportation (FAST) Act. The FAST Act, for the first time in many years, provides federal funding certainty over most of the time covered by this Program. In addition, it provided additional federal funding for highway and bridge projects.

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More than half a million people in Sweden are affected by some sort of disability. During recreational activities in nature areas, these people might encounter difficulties such as inadequate accessibility. The Swedish society requires that all citizens should have the same possibilities. The purpose of this thesis is to improve the accessibility for people with disabilities. The aim is to examine occurring flaws in accessible nature reserves and suggest possible improvements.The questions that will be answered are as follows:• What flaws do accessible nature reserves have, and how do they affect the visitors?• What improvements can be made in nature reserves to increase accessibility?To answer the questions, a case study was done, where five different nature areas were visited. During the case study, various flaws in the accessibility were observed and analysed. Prior to the case study, requirements and scientific research regarding accessibility was studied. Using this, suggestions for improving the accessibility were made. . Most of the improvements that could be made in the studied nature reserves were presumed to be applicable in other nature reserves in Sweden.With the case study in mind, the accessibility was considered in need of various improvements. The accessibility was studied from three out of four of the Swedish disability association’s categories; physical, communicative, and informative accessibility. The flaws that were encountered in the studied areas were due to incorrect design, or insufficient maintenance. Most of the flaws could be corrected in simple ways, but the flaws that were due to incorrect design or planning would require more work. After the case study it was discovered that supposedly “accessible” trails, according to different websites, had varying levels of accessibility. An accessible recreational area will benefit all types of visitors, not only people with disabilities. It will be more convenient and enables visits with strollers. An area cannot be made accessible for all types of visitors, but can be made accessible for as many visitors as possible.

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The publication illustrates various approaches to auditing and reflects on their merit, as well as outlines the implementation of audits in different higher education systems across Europe. One focus is to show common aspects and apparent deviations concerning purpose and aim of the audit, national legislation, scope of the audit, external assessments and their effects. In addition it reflects on current and future challenges and developments. Contributions from twelve European quality assurance agencies provide an insight into their audit approaches. The publication is targeted at quality assurance agencies, higher education institutions and other stakeholders and aims to increase knowledge about different quality assurance procedures across borders. With contributions by: Kastelliz, Dietlinde; Müller Strassnig, Annina; Kohler, Alexander; Huertas, Esther; Adot, Esther; Perez de la Calle, Jose Antonio; Balboa, Esther; Danian, Rado Mircea; Sarbu, Oana; Pedersen, Lars; Moitus, Sirpa; Leetz, Friederike; Froestad, Wenche; van Galen, Stephan; Le Fort, Genevieve; McLaughlin, Maureen; Crum, Ailsa.

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Arbeit an der Bibliothek noch nicht eingelangt - Daten nicht geprüft

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This book is a final product of teachers initiative of the Federal University of Technology - Paraná, Brazil, to increase information about forestry and biological sciences, produced by researchers from different and valuable institutions of the country. It is organized in five chapters, and the first is concerned with nutrient cycling through litter in natural ecosystems in Brazil. The second text is about the negative effects on soil properties in areas of natural trails. The third is about the forest extraction as means of reducing social and environmental vulnerability. Also in the line of research on soil, the fourth chapter discusses the physical attributes in a forest plantation. Last but not least, the fifth paper presents geostatistics applied to the characterization of forests.

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Even though the use of recommender systems is already widely spread in several application areas, there is still a lack of studies for accessibility research field. One of these attempts to use recommender system benefits for accessibility needs is Vulcanus. The Vulcanus recommender system uses similarity analysis to compare user’s trails. In this way, it is possible to take advantage of the user’s past behavior and distribute personalized content and services. The Vulcanus combined concepts from ubiquitous computing, such as user profiles, context awareness, trails management, and similarity analysis. It uses two different approaches for trails similarity analysis: resources patterns and categories patterns. In this work we performed an asymptotic analysis, identifying Vulcanus’ algorithm complexity. Furthermore we also propose improvements achieved by dynamic programming technique, so the ordinary case is improved by using a bottom-up approach. With that approach, many unnecessary comparisons can be skipped and now Vulcanus 2.0 is presented with improvements in its average case scenario.

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La obra de teatro de Alfred Jarry Ubu roi se ha convertido hoy en día en una obra de repertorio en Francia y en el mundo entero. En Cataluña, Ubu roi es representada por primera vez en 1964, a puerta cerrada, en el marco de la Escola d’art dramàtic Adrià Gual. El presente estudio abordará dicha experiencia, una puesta en escena a día de hoy desco-nocida y a la que pretendemos rendir homenaje en tanto que primer espec-táculo en torno a Ubu roi en tierras catalanas.

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The purpose of this thesis is to consider the factors that impact decision making in city park settings, with specific emphasis given to wildlife. Additionally, professional bias was considered as a possible response determinant. Studies connecting perceptions of wildlife and Illinois park managers have been rare or nonexistent, but offer the potential for the improvement of management strategies and recreational opportunities. Data was collected using mixed methods. City recreation practitioners statewide were invited to complete a self-administered questionnaire considering wildlife as a decision-making factor in land acquisition or restoration decisions. A small follow-up sample of park managers was interviewed via telephone for further explanation of their response. Analysis of responses from questionnaires and interviews suggested that wildlife habitat is a factor in land use decision making, but is not considered one of the highest importance. Respondents identified that nuisance wildlife, access to wildlife, and public value of wildlife were also factors in decision making. Factors associated with a high-ranking of the importance of wildlife were agencies with a high number of natural area acres, a high number of overall park acreage, personnel devoted to natural area management, the presence of hiking trails, and cities with a large population. Professional bias of recreation managers was suggested via anecdotal interview data, but could not be empirically connected with wildlife-related decision-making processes, as no managers identified themselves as having completed formal wildlife-related training. As a result, management implications include separate training for both practitioners and public. This study broadens the understanding of wildlife management in city park settings, and reaffirms that further understanding of public and pracitioner values of wildlife will lead to improved land use decisions and recreationally valuable experiences.

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Tese de Doutoramento, Ciências do Ambiente (Ecologia), 30 de Julho de 2013, Universidade dos Açores.

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O presente trabalho busca uma ruptura com a estrutura tradicional, calcada nos conteúdos programáticos, através de uma prática desenvolvida com alunos do ensino fundamental e médio. Assim tornando viável uma situação onde seja perceptível a tomada de uma Consciência Histórica e o reconhecimento como sujeito histórico restabelecendo, em outro patamar, o vínculo e o interesse com a disciplina de História do currículo escolar. Permitindo de maneira concreta, na forma de situações particulares, pela construção de narrativas individuais com base em fotografias, o provocar, o estímulo no alunato para uma reflexão sobre a história de suas vidas e as consequentes formas de interpretação. Passando pela ação do lembrar e do alcançar a memória na presença de sentimentos e emoções. Pela atividade proposta e discussão sobre a consciência histórica, com o devido aporte de Jörn Rüsen, foram criadas as condições possíveis aos discentes para a reflexão e o sentir de que a História é também a sua história, uma vez que, possuidores de uma história individual, ligam-se aos demais, em uma História coletiva.

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La investigación se basa en los resultados de una encuesta realizada en 2009-2010, por el equipo investigador, a 348 inmigrados reagrupantes africanos y a 457 latinoamericanos que residen en las provincias litorales entre Girona y Almería. La información que se ofrece está referida a los aspectos laborales de estos dos colectivos continentales, tanto a escala del conjunto territorial indicado como para tres subáreas incluidas en él: Cataluña litoral, Comunidad Valenciana y Murcia-Almería; según los temas, se trata por separado a los reagrupantes y a los subgrupos familiares que conviven en España (reagrupantes, cónyuges, hijos). El estudio se centra en las estructuras de empleo por sectores económicos. También se estudian las redes migratorias, tan decisivas en la orientación de estos flujos hacia España, la regulación laboral de estos trabajadores, la repercusión de la crisis actual en los empleos de las familias reagrupadas (paro, número de ocupados por familia e ingresos), la satisfacción laboral de los miembros de las familias (horas de trabajo, problemas laborales y salariales) y la estabilidad laboral (antigüedad en el empleo, cursos de formación profesional, trabajo actual y expectativas del inmigrante). El recorrido por los temas laborales indicados, vinculados a los distintos grupos continentales y familiares y a las diferentes escalas territoriales, concluyen en mostrar situaciones económicas y sociales muy diferentes entre africanos y latinoamericanos, y entre los que residen en Cataluña litoral y en Murcia-Almería, en lo que intervienen, entre otras causas, los distintos «capitales» personales aportados por los dos colectivos continentales para acceder al empleo (formación, idioma, …) y las diferentes estructuras económicas de los territorios estudiados. Los africanos y los que residen en las provincias meridionales son los que presentan peores situaciones socioeconómicas.