Assessment of direct radiological risk and indirect associated toxic risks originated by Coal-Fired Power Plants

Over the past few decades there has been some discussion concerning the increase of the natural background radiation originated by coal-fired power plants, due to the uranium and thorium content present in combustion ashes. The radioactive decay products of uranium and thorium, such as radium, radon, polonium, bismuth and lead, are also released in addition to a significant amount of 40K. Since the measurement of radioactive elements released by the gaseous emissions of coal power plants is not compulsory, there is a gap of information concerning this situation. Consequently, the prediction of dispersion and mobility of these elements in the environment, after their release, is based on limited data and the radiological impact from the exposure to these radioactive elements is unknown. This paper describes the methodology that is being developed to assess the radiological impact due to the raise in the natural background radiation level originated by the release and dispersion of the emitted radionuclides. The current investigation is part of a research project that is undergoing in the vicinity of Sines coal-fired power plant (south of Portugal) until 2013. Data from preliminary stages are already available and possible of interpretation.

Criação de uma estratégia de comunicação integrada para uma organização de carácter confessional

Trabalho de projeto apresentado à Escola Superior de Comunicação Social como parte dos requisitos para obtenção de grau de mestre em Gestão Estratégica das Relações Públicas.

Federação Portuguesa de Basquetebol: proposta de comunicação estratégica para o basquetebol em Portugal

Trabalho de projeto apresentado à Escola Superior de Comunicação Social como parte dos requisitos para obtenção de grau de mestre em Gestão Estratégica das Relações Públicas.

Lacunas entre a perceção dos preparadores e utilizadoredos sobre a qualidade da contabilística interna

Existe um amplo consenso na literatura à volta de ideia de que a finalidade da contabilidade de gestão é apoiar a tomada de decisão e o controlo de gestão das organizações. Contudo, não existem evidências suficientes, de que a contabilidade de gestão, quando aplicada à realidade concreta de cada organização, cumpre afectivamente essa finalidade. Um dos motivos pelos quais a contabilidade de gestão pode ver-se limitada no cumprimento dos seus objetivos é a existência de uma lacuna entre a percepção do preparador da informação sobre a qualidade da informação que fornece e a percepção do receptor da informação sobre a qualidade da mesma. Assumindo que a qualidade da informação pode ser avaliada através do reconhecimento da presença das características de relevância, fiabilidade, tempestividade, frequência e compreensibilidade, esta dissertação tem como objetivo avaliar a existência de uma lacuna de percepção entre fornecedor e receptor de informação e analisar as diferentes perspetivas que determinam, ou não, a dimensão dessa lacuna. Para esse efeito foi realizado um estudo de caso comparativo de 12 Pequenas e Médias Empresas portuguesas do sector do calçado, todas situadas na mesma área geográfica. Os dados foram recolhidos através de entrevistas semi-estruturadas a preparadores e receptores de informação. Estes dados foram complementados com documentos de prestação de contas, relatórios de gestão internos, mapas de reporte interno. Dada a natureza qualitativa da maioria dos dados, foi feita uma decomposição da informação obtida das empresas e uma análise de conteúdo. Simultaneamente foi realizada uma análise quantitativa com vista em determinar a dimensão da lacuna de percepção entre preparador/receptor da informação. Os resultados revelam que não existe uma lacuna significativa quanto às percepções das características de qualidade atribuídas à informação. Os resultados sugerem ainda que a lacuna de percepção é menor quando os vários atores percepcionam o papel da contabilidade de gestão tal como é enfatizado na literatura. Este estudo contribui para a literatura na medida em que apresenta uma revisão da utilização da informação para a tomada de decisão. Ainda, contribui para os agentes da indústria terem uma melhor percepção sobre a importância do fenómeno em causa.

Air lime-earth blended mortars - Assessment on fresh state and workability

International Conference on Vernacular Heritage, Sustainability and Earthen Architecture, VerSus 2014, 2nd MEDITERRA, 2nd ResTAPIA, 11-13 September, Valencia, Spain

Immunohistochemistry detection of putative miR-200c and miR-203 targets in breast cancer patients

Part of this thesis will be published in the following: Gomes, B.C., Santos, B. 2015. Methods for studying microRNAs expression and their targets in formalin-fixed, paraffin-embedded (FFPE) breast cancer tissues. In Methods in Molecular Biology: Cancer Drug Resistance (Rueff, J. & Rodrigues, A.S. eds), Springer Protocols.

Palhetas simples: técnicas de manutenção para aplicação na interpretação e pedagogia do clarinete

Relatório de estágio de mestrado em Ensino da Música

O preço da água nos municípios portugueses: quais as razões para as suas disparidades?

Dissertação de mestrado em Economia Monetária, Bancária e Financeira

Relacionamentos em MMORPGs: online e offline

Dissertação de mestrado em Comunicação, Arte e Cultura

Connexin-36 contributes to control function of insulin-producing cells.

Connexin-36 (Cx36) is a gap junction protein expressed by the insulin-producing beta-cells. We investigated the contribution of this protein in normal beta-cell function by using a viral gene transfer approach to alter Cx36 content in the insulin-producing line of INS-1E cells and rat pancreatic islets. Transcripts for Cx43, Cx45, and Cx36 were detected by reverse transcriptase-PCR in freshly isolated pancreatic islets, whereas only a transcript for Cx36 was detected in INS-1E cells. After infection with a sense viral vector, which induced de novo Cx36 expression in the Cx-defective HeLa cells we used to control the transgene expression, Western blot, immunofluorescence, and freeze-fracture analysis showed a large increase of Cx36 within INS-1E cell membranes. In contrast, after infection with an antisense vector, Cx36 content was decreased by 80%. Glucose-induced insulin release and insulin content were decreased, whether infected INS-1E cells expressed Cx36 levels that were largely higher or lower than those observed in wild-type control cells. In both cases, basal insulin secretion was unaffected. Comparable observations on basal secretion and insulin content were made in freshly isolated rat pancreatic islets. The data indicate that large changes in Cx36 alter insulin content and, at least in INS-1E cells, also affect glucose-induced insulin release.

Performance analysis and tuning in multicore environments

Performance analysis is the task of monitor the behavior of a program execution. The main goal is to find out the possible adjustments that might be done in order improve the performance. To be able to get that improvement it is necessary to find the different causes of overhead. Nowadays we are already in the multicore era, but there is a gap between the level of development of the two main divisions of multicore technology (hardware and software). When we talk about multicore we are also speaking of shared memory systems, on this master thesis we talk about the issues involved on the performance analysis and tuning of applications running specifically in a shared Memory system. We move one step ahead to take the performance analysis to another level by analyzing the applications structure and patterns. We also present some tools specifically addressed to the performance analysis of OpenMP multithread application. At the end we present the results of some experiments performed with a set of OpenMP scientific application.

Lack of association between connexin40 polymorphisms and coronary artery disease.

OBJECTIVE: Cx40 is a gap junction protein important for cell-cell communication in the endothelium. Polymorphisms in the promoter region of the human Cx40 gene, -44G>A and +71A>G, were shown to reduce Cx40 transcription by half. As mice with an endothelial-specific deletion of Cx40 are more susceptible to atherosclerosis, this study was designed to discover a correlation between these polymorphisms and atherosclerosis in European populations.¦METHODS AND RESULTS: 803 patients referred to the Geneva University Hospitals for elective coronary angiography were divided according to the number of significantly stenosed vessels (from 0 to 3) and were genotyped for the Cx40 polymorphisms. Genotype distribution in the control group was -44GG/+71AA=59.8%, -44AG/+71AG=35.1% and -44AA/+71GG=5.2%. Surprisingly, this distribution was similar in the CAD group, with -44GG/+71AA=58.5%, -44AG/+71AG=37.6% and -44AA/+71GG=3.8% (p=0.67). Moreover, no significant association between histological carotid plaque composition of culprit lesions and Cx40 polymorphisms could be detected in 583 Dutch patients of the Athero-Express study.¦CONCLUSIONS: Despite a clear antiatherogenic role of Cx40 in mice, our study could not detect an association of Cx40 promoter polymorphisms and CAD in human. Moreover, a correlation with atherosclerotic plaque stability or hypertension could not be demonstrated either. Connexin polymorphisms affecting channel function may be of greater importance for cardiovascular disease than polymorphisms affecting the expression level of the protein.

New opportunities for farm accounting

There is a gap between the importance given to accounting and the low level of bookkeeping and accounting practice in the agricultural sector. Current general accounting rules do not adapt very well to the particularities of farming and are difficult and expensive to implement. The Farm Accountancy Data Network (FADN) and IASC's Proposed International Accounting Standard on Agriculture (PIASA) could be key elements to improve the use of accounting in European farms. The PIASA provides a strong conceptual framework but might need further instruments for its implementation in practice. FADN is an experienced network that has elaborated very detailed farm accounting procedures. Empirical data indicate that current FADN reports are already considered useful by farmers for different purposes. Some changes in the FADN procedures are suggested, while some aspects of FADN are worthwhile for the future IAS on agriculture.

Spatial planning to the test of property rights in Switzerland : an innovative land management approach to coordinate spatial planning goals with property rights interests

In Switzerland, the land management regime is characterized by a liberal attitude towards the institution of property rights, which is guaranteed by the Constitution. Under the present Swiss constitutional arrangement, authorities (municipalities) are required to take into account landowners' interests when implementing their spatial planning policy. In other words, the institution of property rights cannot be restricted easily in order to implement zoning plans and planning projects. This situation causes many problems. One of them is the gap between the way land is really used by the landowners and the way land should be used based on zoning plans. In fact, zoning plans only describe how landowners should use their property. There is no sufficient provision for handling cases where the use is not in accordance with zoning plans. In particular, landowners may not be expropriated for a non-conforming use of the land. This situation often leads to the opening of new building areas in greenfields and urban sprawl, which is in contradiction with the goals set into the Federal Law on Spatial Planning. In order to identify legal strategies of intervention to solve the problem, our paper is structured into three main parts. Firstly, we make a short description of the Swiss land management regime. Then, we focus on an innovative land management approach designed to implement zoning plans in accordance with property rights. Finally, we present a case study that shows the usefulness of the presented land management approach in practice. We develop three main results. Firstly, the land management approach brings a mechanism to involve landowners in planning projects. Coordination principle between spatial planning goals and landowners' interests is the cornerstone of all the process. Secondly, the land use is improved both in terms of space and time. Finally, the institution of property rights is not challenged, since there is no expropriation and the market stays free.

Del "es" al "quiero": la falacia sentimentalista

El emotivismo arraigado en gran parte de la filosofía moral de la postguerra se confiesaheredero de aquella lúcida denuncia, luego bautizada como falacia naturalista, quehiciera Hume a la filosofía que trataba de fundar los deberes en los hechos, la prescripción moral en la descripción científica. Esto ha permitido ver en Hume un pionero del sentimentalismo moral. En este artículo revisamos críticamente esta interpretación desde dos perspectivas: por un lado, situando a Hume y al empirismo en general, en la problemática teórica impuesta por la nueva ciencia, la Reforma y la filosofía cartesiana; por otro, releyendo y reinterpretando contextualmente los pasajes tópicos a los que suelen recurrir las distintas tradiciones hermenéuticas (Is/Ought Passage, Great Divide Passage, Slave Passage). El primer enfoque nos sirve para argumentar contra el tópico de su escepticismo moral y destacar sus esfuerzos por encontrar, si no un fundamento sí al menos una legitimación, de la moral; el segundo, para poner de relieve que la razón juega un papel importante en el escocés, que contradice las habituales tesis sobre su subjetivismo, irracionalismo y emotivismo.