Cosmological Bianchi Class A models in S\'aez-Ballester theory

We use the S\'aez-Ballester (SB) theory on anisotropic Bianchi Class A cosmological model, with barotropic fluid and cosmological constant, using the Hamilton or Hamilton-Jacobi approach. Contrary to claims in the specialized literature, it is shown that the S\'aez-Ballester theory cannot provide a realistic solution to the dark matter problem of Cosmology for the dust epoch, without a fine tunning because the contribution of the scalar field in this theory is equivalent to a stiff fluid (as can be seen from the energy--momentum tensor for the scalar field), that evolves in a different way as the dust component. To have similar contributions of the scalar component and the dust component implies that their past values were fine tunned. So, we reinterpreting this null result as an indication that dark matter plays a central role in the formation of structures and galaxy evolution, having measureable effects in the cosmic microwave bound radiation, and than this formalism yield to this epoch as primigenius results. We do the mention that this formalism was used recently in the so called K-essence theory applied to dark energy problem, in place to the dark matter problem. Also, we include a quantization procedure of the theory which can be simplified by reinterpreting the theory in the Einstein frame, where the scalar field can be interpreted as part of the matter content of the theory, and exact solutions to the Wheeler-DeWitt equation are found, employing the Bianchi Class A cosmological models.Comment: 24 pages; ISBN: 978-953-307-626-3, InTec

On Graph Refutation for Relational Inclusions

We introduce a graphical refutation calculus for relational inclusions: it reduces establishing a relational inclusion to establishing that a graph constructed from it has empty extension. This sound and complete calculus is conceptually simpler and easier to use than the usual ones.Comment: In Proceedings LSFA 2011, arXiv:1203.542

Pliocene marine Bivalvia of Vale do Freixo (Pombal, Portugal) : updated taxonomic list and discussion

The exceptional Pliocene marine faunal assemblages of west central Portugal have been known since the late 19th century. They include highly diverse molluscan faunas whose study is far to be completed. Discovered nearly 40 years ago, Vale do Freixo (Carnide, Pombal) is perhaps the most outstanding fossil site. Neverthless, the bivalves remain relatively unknown. This study focuses on the taxonomy of this relevant group of marine Mollusca. The research, based on a detailed sampling of three fossiliferous beds from the Carnide Formation, yielded a list of 85 species belonging to 75 genera and 32 families. Forty-three species are new for the Carnide area and twenty-three are reported for the first time in the Portuguese Pliocene, increasing to 115 the number of known species in the Mondego Basin in the Beira Litoral

Análise de viabilidade econômica de um empreendimento misto usando simulação de Monte Carlo

TCC (graduação) - Universidade Federal de Santa Catarina. Centro Tecnológico. Engenharia Civil.Considerando as incertezas que estão presentes no cenário macroeconômico do Brasil, principalmente quando se trata de projetos relacionados a construção civil. Os quais têm como principais características o longo período de tempo e o grande dispêndio monetário, é de extrema importância a realização de um estudo para verificar a viabilidade econômicofinanceira do projeto. Este trabalho objetiva a realização de um modelo de fluxo de caixa de um empreendimento imobiliário com unidades residenciais e comerciais na cidade de Capinzal, para posteriormente se realizar simulações, fornecendo assim, um parecer de viabilidade para o empreendimento. Para tanto foi necessário definir quais são os principais componentes que afetam o fluxo de caixa assim como suas possíveis variações, para a obtenção da TMA foi utilizado o método CAPM. Após essas definições foi realizada a análise de viabilidade econômica obtendo como resultados os indicadores TIR, VPL e Payback para os cenários propostos. Em subsequência foi verificada a influência de cada variável através da análise de sensibilidade. Finalmente foram efetuadas várias simulações através do método de Monte Carlo, utilizando diferentes distribuições, gerando uma grande quantidade de cenários para assim definir as faixas de probabilidade de ocorrência das faixas de valores de VPL. Com a realização das análises verificou-se que o empreendimento tem viabilidade econômica, apresentando risco mediano e uma alta probabilidade de fornecer um VPL positivo para o investidor.Considering the uncertainties that are present in the macroeconomic scenario in Brazil, especially when it comes to projects related to civil construction. Which have as main characteristics the long period and the large monetary expenditure, it is extremely important to carry out a study to verify the economic and financial feasibility of the project. This work aims to carry out a cash flow model of a real estate project with residential and commercial units in the city of Capinzal, to later carry out simulations, thus providing a feasibility report for the project. Therefore, it was necessary to define which are the main components that affect the cash flow as well as its possible variations. To obtain the TMA the CAPM method was used. After these definitions, an economic feasibility analysis was carried out, obtaining as results the IRR, NPV, and Payback indicators for the proposed scenarios. Subsequently, the influence of each variable was verified through sensitivity analysis. Finally, several simulations were carried out using the Monte Carlo method, using different distributions, generating a large number of scenarios to define the probability ranges of occurrence of the ranges of NPV values. After carrying out the analysis, it was verified that the project is economically viable since it has a medium risk and a high probability of providing a positive NPV for the investo

Tectonic evolution of the Dom Feliciano Belt in Southern Brazil : geological relationships and U-Pb geochronology

O Cinturão Dom Feliciano, que se estende desde o leste do Uruguai até o sul do Brasil, representa um importante orógeno Neoproterozoico formado pela colagem de domínios oceânicos e fragmentos continentais entre os crátons Rio de La Plata, Congo e Kalahari. A integração de dados de mapeamento geológico e estrutural com resultados isotópicos permitu estabelecer uma melhor compreensão sobre as fontes de magmatismo e os processos de sedimentação. A evolução do Cinturão Dom Feliciano envolveu a superposição de três eventos orogênicos denominados Passinho (0.89 - 0.86 Ga), São Gabriel (0.77 - 0.68 Ga) e Dom Feliciano (0.65 - 0.54 Ga). Os dois primeiros eventos envolvem o fechamento do oceano Charrua com a geração inicial de um arco intra-oceânico (Passinho) e, posteriormente, de um arco continental (São Gabriel). Esse oceano separava as áreas continentais representadas pelo cráton Rio de La Plata e a microplaca continental Nico Perez. No terceiro evento ocorreu fechamento do oceano Adamastor em decorrência da colisão entre os crátons Rio de La Plata e Kalahari entre 650 - 620 Ma, envolvendo condições metamórficas de alta temperatura e pressão intermediária. Neste momento de grande espessamento crustal, a partição da deformação no cinturão controla a sua evolução final com a passagem para uma tectônica de escape, responsável pela nucleação de zonas de cisalhamento transcorrentes de escala crustal. Essas estruturas são profundas e promoveram a geração e a ascenção de magmas máficos, que, associados ao elevado gradiente térmico regional, induziram um extenso evento de retrabalhamento crustal, responsável pela formação do Batólito Pelotas. O colapso do orógeno é representado pelo magmatismo tardio do batólito e pela formação das sequências superiores da Bacia do Camaquã.The Dom Feliciano Belt is an important Neoproterozoic to Cambrian orogenic complex, extending from eastern Uruguay to southern Brazil. It comprises a collage of oceanic domains and continental fragments developed between 900 and 540 Ma between the Rio de La Plata, Congo and Kalahari cratons. The integration of field and structural data with recent isotopic results has introduced new insights on the sources of the magmatism and sedimentary processes. This paper presents a review of the geochronological results combined with stratigraphic, structural and geochemical data. The evolution of the Dom Feliciano Belt involved three orogenic events known as the Passinho (0.89 - 0.86 Ga), São Gabriel (0.77 - 0.68 Ga) and Dom Feliciano (0.65 - 0.54 Ga). The first two events involved the closure of the Charrua Ocean generating an intra-oceanic arc (Passinho) and, subsequently, an active continental margin arc (São Gabriel). This ocean separated the continental areas represented by the Rio de la Plata Craton and the Nico Perez continental microplate. Closure of the Adamastor ocean resulted in an important collisional event between the Nico Perez Microplate/Rio de La Plata Craton and Kalahari and Congo cratons between 650 and 620 Ma, involving high T/intermediate P metamorphism. At this time of crustal thickening, the partition of the deformation controled the final evolution of the belt with important escape tectonics, responsible for nucleating crustal-scale transcurrent shear zones. These structures were deep and promoted the rise of mafic magmas, which, associated with high regional thermal gradient, lead to an important event of crustal reworking, responsible for the formation of the Pelotas Batholith. The orogenic collapse is represented by late magmatism of Pelotas Batholith and deposition of upper section of the Camaquã Basin

DA MARGEM AO CENTRO: O MEEL COMO “COTA ZERO” EM MINHA TRAJETÓRIA

O presente texto traz a minha história de vida, com ênfase na trajetória profissional, ressaltando as transformações propiciadas, em especial, pelo contato com o Programa de Pós-Graduação em Estudos de Linguagem – MeEL – UFMT

How Will English Higher Education Look Like in 2025?

In light of the recent higher education policy changes in the UK, a scenario study was carried out – based on the Delphi-method – exploring the longer term impact (2025) of the policies on English higher education. The two scenarios are briefly presented below

Impacto da plataforma Moodle nas escolas de Famalicão: um estudo de caso

Dissertação de mestrado em Educação (área de especialização em Tecnologia Educativa)Com a proliferação, por todas as escolas do país, da utilização da plataforma Moodle, urge estudar a forma como está a ser utilizada no apoio ao ensino presencial. No âmbito da presente dissertação de mestrado, desenvolveu-se um estudo com o objectivo de analisar o impacto da plataforma Moodle no Agrupamento de Escolas Júlio Brandão, em Vila Nova de Famalicão. O estudo realizado foi um estudo de caso. Os dados foram recolhidos através de entrevista, realizada aos gestores da plataforma Moodle no agrupamento, e por dois questionários aos professores do agrupamento. Dos 178 professores existentes no agrupamento, 105 responderam ao primeiro questionário, constatando-se que só 45 são utilizadores da plataforma, tendo 30 respondido ao questionário relativamente ao modo como usam a plataforma. A análise dos dados permitiu concluir que a utilização da plataforma Moodle, pelos professores do Agrupamento, ainda está numa fase incipiente, com poucos intervenientes e muito vocacionada à gestão do próprio agrupamento. É, também, muito utilizada como repositório de documentos para posterior consulta, quer por alunos quer por outros professores, não sendo rentabilizada a utilização do espaço da plataforma de uma forma mais colaborativa e em contexto de sala de aula. Embora a utilização seja diminuta, verificou-se que os professores reconhecem os benefícios da sua utilização bem como a necessidade de formação sobre a sua utilização.Moodle is the LMS most adopted in Portuguese schools and research is needed to understand how it is being used. This Master dissertation analyzes the impact of the Moodle in the group of schools Júlio Brandão, in Vila Nova de Famalicão. The methodology used is a case study. The data was collected through interviews with the managers of Moodle and through two questionnaires filled in by the teachers. From 178 teachers inquired, 105 answered to the first questionnaire but only 45 were using the LMS. These 45 teachers received the second questionnaire about their use of the Moodle. Thirty teachers answered it. After analyzing the results, we may conclude that the use of the Moodle is incipient, with few participants and specially oriented to the management of the Group of Schools. The Moodle is essentially used as a repository of documents or materials to be consulted by teachers or students. Only a few teachers used its collaborative and communication tools. Despite the low utilization, all teachers recognize its benefits and the need of training

INTEGRITY OF THE SUBSCAPULARIS TENDON AFTER OPEN SURGERY FOR THE TREATMENT OF ANTERIOR SHOULDER INSTABILITY: A CLINICAL AND RADIOLOGICAL EVALUATION

ABSTRACTObjective: To evaluate the integrity of the subscapularis tendon by strength, function and magnetic resonance imaging after deltopectoralis access for anterior shoulder instability. Methods: 20 patients with anterior shoulder instability have been evaluated. Minimum follow-up was 12 months, with a mean of 40 months. Only male patients were included, with a mean of age of 29 years (20 − 42 years). The patients have been submitted to physical examinations of mobility, muscular strength, Belly Test and Gerber Test. The isokinetic strength in internal and external rotation, in angular speeds of 600/s and 1800/s, for both shoulders was measured using a dynamometer. In 15 patients magnetic resonance imaging (MRI) was carried out on both shoulders for evaluating the thickness, cross-sectional area and atrophy of the subscapularis muscle. Results: A significant difference was found between torque peaks at the speed of 600/s for internal (p=0.036) and external (p=0.008) rotation. However, at 1800/s the opposite happens (internal rotation: p=0.133; external rotation: p=0.393). Subscapularis muscle thickness and area are significantly smaller than the normal side, with a deficit of 19% and 23%, respectively. According to Rowe and UCLA scores, we find excellent and good results for the majority of patients, with a mean of 88 and 31.6 points, respectively. Conclusion: Despite of the good functional results, open surgery can limit strength and reduce the thickness and the cross-sectional area of subscapularis muscle. However, the best results were found in the patients who had the dominant side operated