976 resultados para Ponte das Barcas


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Introductory.-- The palio alla lunga.-- The giuoco del mazzascudo.-- The palio alla tonda.

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University of Illinois bookplate: "From the library of Conte Antonio Cavagna Sangiuliani di Gualdana Lazelada di Bereguardo, purchased 1921".

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il lavoro riguarda l'analisi statica e sismica del ponte ad arco di Brisighella con l'adeguamento statico

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The study of maturation and spawning of the oyster is part of a research program to investigate the summer mortalities of the oysters, Crassostrea gigas in Marennes-Oléron Bay. Four maturity stages were simultaneously obtained by diet and thermal conditioning (immature, low maturation, mature and post-spawning stages). Measurements of clearance, filtration, absorption and respiration rates allowed a calculation of the scope for growth and hence an estimation of the oyster's energetic budget at various maturity stages. Male and female oysters had similar physiological responses. The filtration rate ranged from 2.4 to 2.6 1.h(-1) at the early stages of maturation and decreased to 1.8 1.h.' during the maturity stage. Growth rate resulting from gonad development did not induce filtration rate changes. Mature 2.5 and 1.5-year-old oysters showed a negative energy budget reaching -15 and -90 J.h(-1) respectively. By contrast, non-ripe oysters had scope for growth in the range 110 to 170 J.h(-1). A negative energy budget during the high maturation stage resulted from a reduced absorption efficiency. A new allometric relationship for the respiration model of C. gigas was defined during vitellogenesis with a 0.574 coefficient value. Based on Our results, the oyster's physiological weakness during vitellogenesis should be considered as a part of explanation for spring and summer mortalities of cultured oysters in Marennes-Oléron Bay.

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The study of sexual maturation and spawning in the Pacific oyster (Crassostrea gigas) is part of a vast research programme that endeavours to understand the causes of mortality that occur sporadically during the spring and summer seasons in the Marennes-Oléron Bay. Thermal and diet conditioning were used to obtain oysters at each stage of maturity simultaneously. Using the measured rates of clearance, consumption, absorption and respiration provided estimates of growth potential and gave the energetic budget of oysters at different stages of sexual maturity. Physiological responses were similar for males and females. Filtration decreased from 2.4 to 2.6 l.h (-1) to 1.8 l.h (-1) with increasing maturity. Weight gain was associated with gonad development and did not appear to have an effect on the clearance rate. Oysters 2.5 years old showed a negative energy budget (-15 J h (-1)) at later maturity stages. This deficit was confirmed (90 J.h (-1)) in oysters 1.5 years old at the same stage of maturity. On the contrary, immature oysters, in the early stages of maturity or post-spawning, had a growth potential of 110 to 170 J.h (-1). The energy deficit observed at later stages of maturity was primarily due to absorption, which decreased sharply during peak gametogenesis. Using measured respiration rates, an allometric relationship specific to gonad growth was determined with a coefficient of 0.574. Low physiological performance of oysters, observed at later stages of sexual maturity, must be taken into account in research on the factors responsible for spring and summer mortalities affecting oyster farms in Marennes-Oléron.

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Relatório de estágio apresentado à Escola Superior de Educação de Paula Frassinetti para a obtenção do grau de Mestre em Ensino do 1º e 2º Ciclo do Ensino Básico

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Trabalho de Projeto para obtenção do grau de Mestre em Engenharia Civil na Área de Especialização em Estruturas

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Os cursos de educação e formação constituem uma medida que visa a promoção do sucesso escolar, bem como a prevenção dos diferentes tipos de abandono escolar, designadamente o desqualificado, a promoção das condições de empregabilidade e de transição para a vida activa. A problemática desta investigação foi lançada pela questão: Que Contributos proporcionam os Cursos de Educação e Formação no percurso de formação dos alunos do Agrupamento Vertical de Escolas de Montemor- o- Novo? Tendo como base esta problemática, o corpo de trabalho é constituído por duas partes. A primeira relativa ao quadro teórico e a segunda ao estudo empírico. No quadro teórico, incidimos sobre a análise de insucesso e abandono escolar, bem como na sua relação. O combate ao insucesso escolar, numa escala nacional, constituiu também objecto do nosso estudo, assim como as características dos Cursos de Educação e Formação e o seu Funcionamento. A parte relativa ao estudo empírico, envolveu a concepção e a testagem de instrumentos de recolha de dados e a realização de entrevistas semi - estruturadas. O estudo efectuado revelou que os alunos manifestam interesse por estes cursos, pelo seu funcionamento e porque lhes confere uma certificação profissional. O contributo dos cursos de educação e formação no percurso de formação dos alunos, revelou - se bastante positivo, proporcionando um impacto muito forte na melhoria dos resultados dos alunos, na sua atitude perante a escola e na valorização da aprendizagem. ABSTRACT; The courses of education and development are a measure that aims at the promotion of scholar success, as well as the prevention of the different kinds of school drop-outs, namely the unqualified, the promotion of the conditions of employment and the change to active life. The set of problems posed by this research was based on the following question: How does the courses of education and development contribute for the students' lifelong learning? Based on this set of problems, the research is made up of two parts. The former refers to the theoretical framework and the latter to the empirical study. As far as the theoretical framework is concerned, we focused on the analysis of the school unsuccess and drop-out, as well as on their connection. The fight against the school unsuccess, at a national scale, besides the characteristics of the Education and Development Courses and their Functioning, is also the object of our study. The part related to the empirical study involved the conception and the testing of instruments of data collection and semi-structured interviews. The present study revealed that the students are interested in this kind of courses due to their way of working and because these courses give them a professional certificate. The contribution of these education and development courses proved to be really positive, making it possible to improve both the students' school results and their attitude towards school giving value to learning.

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Um contributo para a compreensão do papel das funções sociais do estado, em particular da Educação.