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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
201

The nearby SuperNova Factory : des CCD a la cosmologie.

Gangler, Emmanuel 29 September 2011 (has links) (PDF)
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202

A performance cultural na Dança dos Mascarados

Amaral, Ivoneides Maria Batista do 05 November 2015 (has links)
Submitted by Jordan (jordanbiblio@gmail.com) on 2016-09-26T13:39:50Z No. of bitstreams: 1 DISS_2015_Ivoneides Maria Batista do Amaral.pdf: 2527620 bytes, checksum: 83c1280d7dd22ffa7f32a7d8a8e797ce (MD5) / Approved for entry into archive by Jordan (jordanbiblio@gmail.com) on 2016-09-26T15:02:53Z (GMT) No. of bitstreams: 1 DISS_2015_Ivoneides Maria Batista do Amaral.pdf: 2527620 bytes, checksum: 83c1280d7dd22ffa7f32a7d8a8e797ce (MD5) / Made available in DSpace on 2016-09-26T15:02:53Z (GMT). No. of bitstreams: 1 DISS_2015_Ivoneides Maria Batista do Amaral.pdf: 2527620 bytes, checksum: 83c1280d7dd22ffa7f32a7d8a8e797ce (MD5) Previous issue date: 2015-11-05 / O conceito de performance cultural, enquanto proposta dramatúrgica foi articulada através da junção dos estudos de Schechner e Turner, da concepção de que todo comportamento restaurado é uma performance, procurando revelar o caráter dinâmico, vivo e transformador próprio da comunidade (DAWSEY, 2013). A performance cultural ocorre em diferentes contextos sociais, em cada performance, criam-se novas configurações, novos espaços e espectadores. Neste trabalho, observamos a Dança dos Mascarados de Poconé composta por 28 homens que se vestem com máscaras e roupas coloridas para a realização do ritual coletivo, desempenhando uma conexão entre os dançantes e a comunidade. Pensando na Dança dos Mascarados como Performance cultural, é possível pensar na dança como uma ação extra cotidiana, uma arte da presença e uma ação coletiva. A dança interrompe as experiências rotineiras e se inscreve numa nova temporalidade. / The concept of the cultural performance, as dramaturgical proposal was articulated through Schechner and Turner’s studies, of conception that all restored behavior is a performance trying to reveal the dynamic character, living and community own transformer (DAWSEY, 2013). The cultural performance occurs in different social contexts, each performance, creates new configurations, new spaces and spectators. In this study, we observed the Dança dos Mascarados of Poconé, composed by 28 men who dress up with masks and colorful clothes, for the realization of collective ritual, playing a connection between the dancers and the community. Thinking in the Dança dos Mascarados as a cultural performance, it is possible to think in the dance as a daily extra action, an art of presence and a collective action. The dance interrupts the routine experiences and is part of a new temporality.
203

Um estudo sobre o momentum angular total de estrelas com planetas

Santana, Juliana Cerqueira de 29 November 2011 (has links)
Made available in DSpace on 2014-12-17T15:15:00Z (GMT). No. of bitstreams: 1 JulianaCS_DISSERT.pdf: 3176095 bytes, checksum: 698fc04621ae821b481850e332892a95 (MD5) Previous issue date: 2011-11-29 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Since Michel Mayor and his student Didier Queloz s pioneer announcement, in 1995, of the existence of a planet orbiting the star 51 Peg, up to present date, 695 extrasolar planets orbiting stars of spectral type F, G, K and M have been discovered. A study on the behavior of the total angular momentum of the planetary systems known up to present date becomes relevant when we know that about 98% of the angular momentum of the solar system is associated with the planets, although they represent only 0.15 percent of the mass of the whole system. In this dissertation we study the behavior of stellar angular momentum, orbital angular momentum and total angular momentum in a sample of 282 stars harboring planets, including 40 multiple systems. We observed that planetary systems containing more than one known planet have both higher orbital angular momentum and total angular momentum compared to those who have only one planet. This analysis shows that multiplanet systems tend to have higher momenta, suggesting that the planets in such systems that contribute to the greater portion momenta have been found. Thus, planetary systems with lower values for the momenta represent the best candidates to the discovery of new planets / Desde o anuncio pioneiro de Michel Mayor e seu ent?o estudante Didier Queloz, em 1995, da exist?ncia de um planeta orbitando a estrela 51 Peg, at? a presente data, 695 planetas extrasolares foram descobertos, orbitando estrelas do tipo espectral F, G, K e M. Um estudo sobre o comportamento do momentum angular total dos sistemas planet?rios, conhecidos at? o momento, torna-se relevante quando conhecemos que cerca de 98% do momentum angular do Sistema Solar est? associado aos planetas, embora esses representem apenas 0,15% da massa de todo o Sistema. Na presente disserta??o de mestrado estudamos o comportamento do momentum angular estelar, do momentum angular orbital e do momentum angular total numa amostra de 282 estrelas, abrigando planetas, incluindo 40 sistemas multiplos. Observamos que os sistemas planet?rios contendo mais de 1 planeta conhecido possuem tanto momentum angular orbital quanto momentum angular total mais elevado, comparado ?queles sistemas que possuem apenas 1 planeta. Esta an?lise mostra que sistemas planet?rios m?ltiplos tendem a ter momenta mais elevado, sugerindo que em tais sistemas os planetas que contribuem com maior parcela para o momenta j? foram descobertos. Sendo assim, sistemas planet?rios com menores valores para o momenta representam melhores candidatos para a descoberta de novos planetas
204

Mecanismos de proteção a mionecrose nos musculos extra-oculares de camundongos distroficos mdx / Mechanisms of protection against myonecrosis in extraocular muscles of the mdx mice

Carvalho, Candida Luiza Tonizza de 12 August 2018 (has links)
Orientador: Maria Julia Marques / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia / Made available in DSpace on 2018-08-12T10:29:05Z (GMT). No. of bitstreams: 1 Carvalho_CandidaLuizaTonizzade_D.pdf: 7808064 bytes, checksum: e7eb0b2d08d94a0d2baad550d0683e29 (MD5) Previous issue date: 2008 / Resumo: A distrofia muscular de Duchenne é caracterizada pela falta de distrofina, proteína estrutural do sarcolema que promove a sua estabilização. Em ausência de distrofina, ocorre aumento da permeabilidade ao cálcio e conseqüente mionecrose. No camundongo distrófico mdx, os músculos extra-oculares (EOM) não apresentam mionecrose, sendo protegidos da falta de distrofina. Este fato os torna importantes para a maior compreensão dos mecanismos da patogênese da distrofia muscular. No presente trabalho verificamos se alterações nos níveis das proteínas calsequestrina e SERCA1, reguladoras do cálcio, e ?-distroglicana (?-DG), pertencente ao complexo distrofina-glicoproteínas, podem se relacionar a proteção contra a mionecrose dos EOM de animais distróficos. Utilizamos as técnicas de immunoblotting e imunofluorescência e observamos que os EOM de animais distróficos apresentaram aumento significativo no conteúdo das proteínas calsequestrina e SERCA1, bem como aumento significativo da ?-distroglicana. Músculos distróficos não protegidos (tibial, gastrocnêmio, sóleo, esternomastóide e diafragma) apresentaram diminuição no conteúdo destas proteínas em relação aos controles. Não foram observadas alterações na localização da utrofina, decorrente da falta da distrofina. Sugerimos que o aumento da ?-DG nos EOM de animais distróficos possa auxiliar na integridade do sarcolema e, conseqüentemente, na proteção das fibras musculares. Já o aumento das proteínas ligadas ao Ca2+ nos EOM mdx poderia ajudar na rápida remoção do excesso de cálcio, resultando na manutenção da sua homeostase e proteção à mionecrose. Os resultados obtidos nos demais músculos distróficos confirmam que distúrbios no tamponamento do cálcio podem estar envolvidos na distrofia muscular. / Abstract: Duchenne muscular dystrophy is one of the most common hereditary diseases. Abnormal calcium ion handling renders dystrophic muscle fibers more susceptible to necrosis. In the mdx mice, extraocular muscles (EOM) are protected and do not undergo myonecrosis. We investigated whether this protection is related to an increased expression of calcium-binding proteins, which may protect against the elevated calcium levels seen in dystrophic fibers. The expression of SERCA1 and calsequestrin was examined in EOM and in non-spared limb, diaphragm and sternomastoid muscles of control and mdx mice using immunofluorescence and immunoblotting. Dystrophic EOM presented a significant increase in the proteins studied, and a significant increase in ?-dystroglycan expression. These proteins were reduced in the non-spared mdx muscles. The were no changes in utrophin distribution. The increase of Ca2+-handling proteins in dystrophic EOM may permit a better maintenance of calcium homeostasis, with the consequent absence of myonecrosis. The results further support the concept that abnormal Ca2+-handling is involved in dystrophinopaties. / Doutorado / Anatomia / Doutor em Biologia Celular e Estrutural
205

Leitura, família e subjetivação

Aparecida de Fátima Amaral dos Santos 23 April 2012 (has links)
Não há como negar que a leitura é imprescindível na vida de qualquer cidadão que deseja se inserir na sociedade e se sentir valorizado perante sua comunidade. A leitura crítica situa o leitor diante dos diversos mundos que o cercam: da política, da cultura, dos esportes, do entretenimento, da literatura, etc. O meu exercício docente numa escola de periferia da Rede Municipal de Ensino da cidade de Taubaté tem ratificado mau desempenho em leitura por muitos alunos, apesar das ações desenvolvidas nas aulas de Língua Portuguesa. Essa constatação também é análoga à de vários colegas que exercem o magistério na mesma rede de ensino, em locais semelhantes. A partir dessa verificação, surgiu o interesse em tentar compreender as razões por que numa mesma sala de aula, em que se oferecem os mesmos conteúdos, a mesma didática, há tanta diferença entre os alunos quanto a questões de leitura e aprendizagem de modo geral. Dessa forma, mais especificamente, este estudo visa a: 1) analisar as condições sócio-econômicas e culturais dos alunos de 4 escolas participantes do Projeto OBSERVATÓRIO DA EDUCAÇÃO/UNITAU; 2) analisar suas representações imaginárias acerca das práticas sociais de leitura e os efeitos, ou não, de seus pais sobre o desenvolvimento de sua competência em leitura; 3) refletir sobre como esses fatores podem afetar o envolvimento dos alunos nas atividades de leitura na escola. Para atingir esses objetivos, os alunos uma amostragem de cada escola responderam a um questionário na sala de aula, abordando questões referentes aos componentes familiares, às condições culturais e socioeconômicas da família. Para análise das representações imaginárias acerca de leitura, uma proposição foi respondida pelos alunos do 6 ao 9 ano: O que você pensa sobre leitura. Toma-se como alicerce, os pressupostos teóricos da Análise de Discurso de linha francesa (AD), os quais, associados às análises dos dados quantitativos, permitem concluir que fatores extra-sala de aula influenciam na subjetividade leitora dos alunos provocando a heterogeneidade na aprendizagem. Expusemos as predominâncias masculinas ou femininas nas enunciações, enfatizando as diferenças dos discursos entre os sexos e apresentamos, também, resultados referentes à análise da materialidade linguística dos alunos a qual conjuga história e ideologia para apreensão de sentidos. Finalmente apresentamos a contribuição desse estudo para a Linguística Aplicada, voltada ao ensino de Língua Portuguesa. / It is undeniable that reading is essential in the life of citizens who wish to be part of the society and to feel appraised in their community. Critical reading makes readers face many worlds surrounding them: politics, culture, sports, entertainment, literature etc. My teaching experience in a municipal school in the suburbs of Taubaté has ratified the fact that many students have a bad reading performance, regardless the actions developed in Portuguese classes. This finding is also analogous to many of my colleagues who teach in similar places, in the same city educational system. Taking it into account, the interest to try to understand the reasons why in a classroom, in which the same content and the same didactics are offered, there is such a great difference among students related, not only to reading, but also to learning as a whole. Thus, more specifically, this research aims at: 1) analyzing the socioeconomic and cultural conditions of students of 4 schools which take part of the Projeto OBSERVATÓRIO DA EDUCAÇÃO/UNITAU, 2) analyzing their parents imaginary representations of reading social practices and its effects, or not, about the development of their reading competence; 3) reflect upon how these factors can affect students commitment to reading activities at school. To fulfill these objectives, students a sampling of each school - answered a questionnaire in class, whose questions were related to their family members and their socioeconomic and cultural conditions. To analyze the imaginary representations about reading, a proposition was answered by students from the 6th to the 9th grades: What do you think about reading? The French Discourse Analysis theoretical tenets are the foundations for this research, which in association with the quantitative data analysis, allowed us to conclude that extra-class factors influence students reading subjectivity leading to heterogeneity in learning. We exposed the masculine and the feminine predominance in the enunciations, emphasizing the differences between the discourses of the different sexes and we also present results related to the analysis of the students linguistic materiality which conjugates History and Ideology to apprehend meanings. Finally, we present the contribution this research gives to Applied Linguistic, focusing on Portuguese teaching.
206

Infrared Micro-tomography for the characterization of extra-terrestrial materials / Micro-tomographie infrarouge pour la caractérisation de matériaux extraterrestres

Dionnet, Zelia 26 September 2018 (has links)
L’étude en laboratoire d’échantillons extraterrestres, issus d’objets primitifs, est fondamentale aussi bien pour améliorer notre connaissance de la formation et de l’évolution de notre Système Solaire que pour interpréter les observations faites par les missions spatiales.Des analyses précises en laboratoire de ces échantillons sont essentielles pour comprendre les conditions physico-chimiques qui ont mené à la formation des petits corps et des planètes. Le but de cette thèse interdisciplinaire a été d’exploiter l’imagerie infrarouge et de développer un dispositif de microtomographie en spectroscopie infrarouge à transformée de Fourrier.Nous étudierons des fragments de météorites et de poussières astéroïdales. De plus, la tomographie en rayons X a été utilisée pour contraindre précisément la forme de l’échantillon. Avec ces analyses, nous avons caractérisé la composition de matériaux extraterrestres à très petite échelle sans les détruire. Nous avons étudié l’effet des processus post-accrétionels, comme l’altération spatiale, à l’intérieur du corps parent, ou l’altération spatiale, à la surface de l’astéroïde, à la fois sur les parties minérale et organique. En particulier,nous avons pu grâce à cette expérience,étudier la corrélation spatiale de la matière minérale et organique, ce qui est fondamental pour comprendre l’origine et l‘évolution de la matière organique. / Laboratory based studies of extraterrestrialmaterials derived from primitive objectsis fundamental to improve our knowledgeabout the formation and the evolutionof the Solar System as well as for interpretingobservations collected by spacecraftand landers. Precise laboratory analysesof samples obtained from sample returnmissions are essential to understand theconditions and the physico-chemical processes,which lead to the formation of thesmall bodies and planets. The aim of thisinterdisciplinary thesis was to exploit theinfrared imaging and to implement threedimensionalFourier transform infrared microtomographyto study different extraterrestrialmaterials (meteorites and asteroidaldust). Moreover, X-ray tomographywas used to determine the precise shape ofthe samples. With these analytical methods,we have characterized the compositionof extraterrestrial materials withoutdestroying them at very high resolution.We have studied the post-accretional effects,such as aqueous alteration inside theparent’s bodies or space weathering at thesurface of asteroids, on both the mineraland the organic components. In particular,we studied the correlations between the organicmaterials and the minerals observedin the sample, which is fundamental to understandthe origin and the evolution of theorganic matter.
207

Elevassistentens upplevelse kring sitt uppdrag och sin yrkesroll hos en elev med synnedsättning ur ett specialpedagogiskt perspektiv : Fenomenologisk intervjustudie / Student assistant's experience regarding their assignment and professional role with a student with visual impairment from a special educational perspective : Phenomenological interview study

Österåker, Sara January 2019 (has links)
Den här studien syftar till att synliggöra hur elevassistenter som arbetar hos elever med synnedsättning upplever sitt uppdrag och yrkesroll. Studien utgår från en fenomenologisk ansats och tidigare forskning. Studiens resultat grundar sig på elevassistentens berättelser om sina upplevelser och erfarenheter. Fenomenologin står fast vid att respondentens upplevelser och erfarenheter är det som är i fokus i studien. Studien har genomförts med semistrukturerade intervjuer. Respondenterna kontaktades av syncentralen eller fått information från specialpedagogiska skolmyndigheterna om studiens syfte och mål. Studien bygger på berättelser från fyra elevassistenter om deras upplevelser och erfarenheter kring uppdraget samt yrkesrollen. Resultatet visar på oklara förhållanden gällande elevassistentens uppdrag och yrkesroll i skolans verksamhet. Det framgår att elevassistenterna huvudsakligen arbetar med hjälpmedel, syntolkning eller lärarens arbetsuppgifter. I det framgår även att skolledningen behöver utveckla sin kunskap kring elevassistentens uppdrag och yrkesroll hos elever med synnedsättning. Fortbildning både efterfrågas och behövs inom hela denna verksamhet. / This study aims to highlight how student assistants working with students with visual impairment perceive their assignment and professional role. The study is based on a phenomenological approach and previous research. The study results are based on the student assistant's stories about their impressions and experiences. The phenomenology firmly holds that the respondent's impressions and experiences are in the focus of the study. The study was conducted with semi-structured interviews. The respondents were contacted by the vision center or received information from the special education school authorities about the purpose and objectives of the study. The study is based on stories from four student assistants about their impressions and experiences regarding the assignment and the professional role. The results show ambiguous relationships regarding student assistant assignments and professional role in school activities. It can be seen that the student assistants mainly work with aids, visual interpretation or the teacher's tasks. It is also evident that the school management needs to develop their knowledge regarding the assignment and the professional role of the student assistant for students with visual impairment and continuing education is needed throughout the operations.
208

A Comparison of the Eleven Grade School System of Texarkana, Texas and the Twelve Grade School System of Texarkana, Arkansas

Lamb, Hugh Lawrence 08 1900 (has links)
The purpose of this study is: 1) To point out some similarities and differences of the two school systems in the twin cities. 2)To determine the comparative readiness of the students finalizing the seventh grade in Texas and those finishing eighth grade in Arkansas to pursue high school work. 3) To make a comparative study of the progress made during the Freshman year in high school by these same students. 4) To determine the difference in achievement of students in the two school systems by making a study of the graduating seniors of the session 1936-1937.
209

Nyanlända elevers utmaningar och möjligheter för att etablera sig i Sverige : En studie om elever som går språkintroduktion / Challenges and possibilities that newcomers face to establish themselves in Sweden : A study about introduction program students

Zakaria, Walid January 2021 (has links)
No description available.
210

”Det som gynnar den och den, gynnar dom andra också” : En kvalitativ studie om hur digitala verktyg påverkar elever i behov av extra anpassningar i deras läs- och skrivutveckling / ”What ́s great for this pupil and that pupil, is great for the others too” : A qualitative study of digital tools’ impact on the reading and writing of pupils with special needs

Persson, Hanna January 2022 (has links)
Det finns många olika sätt att möta elevers olika behov och att använda sig av digitala verktyg i sin undervisning är ett sätt. Därför syftar studien till att undersöka hur några lärare och speciallärare beskriver att elever i behov av extra anpassningar arbetar med digitala verktyg för läs- och skrivutveckling i årskurserna 1–3. För att förstå hur och varför några lärare och speciallärare arbetar med elever i behov av extra anpassningar och deras läs- och skrivutveckling behöver olika frågor besvaras. Det är nödvändigt att undersöka digitala verktyg med avseende på för- och nackdelar, vilken effekt olika ramfaktorer får för arbetet samt på vilket sätt lärare och speciallärare arbetar med dem. För att uppfylla syftet med studien har kvalitativa intervjuer genomförts med tre lärare och tre speciallärare. Intervjuerna har genomförts i par eftersom lärare och speciallärare ofta jobbar tillsammans. Teoretisk utgångspunkt i studien är ramfaktorteorin och det sociokulturella perspektivets centrala delar om den proximala utvecklingszonen, scaffolding och artefakter. Efter en tematisk analys visar resultatet att respondenterna ser flest fördelar med digitala verktyg för att gynna elever i behov av extra anpassningar i deras läs- och skrivutveckling. Centralt i resultatet är att arbetet kräver digital kompetens och undervisning eftersom detta är ramfaktorer som får effekter på elevernas läs- och skrivutveckling. Vidare visar resultatet att talsyntes och Inläsningstjänst är betydande funktioner som lärarna och speciallärarna använder i sin undervisning med digitala verktyg. De fördelar med verktygen som resultatet visar är att de ger eleverna en ökad motivation och en ökad förförståelse. Slutligen visar resultatet att tekniska problem och en rädsla för avsaknad av analoga verktyg är de betydande nackdelarna med digitala verktyg. Avslutningsvis diskuteras studiens metod och resultat i förhållande till studiens syfte och teori. / There are various ways of meeting the various needs within a class and using digital tools is one of them. Therefore, the study aims to investigate how teachers and special needs teachers use digital tools together with to benefit their reading and writing development. To understand how and why teachers and special needs teachers work with pupils with special needs and their reading and writing development, different questions need to be answered. It ́s necessary to investigate the advantages and disadvantages found with digital tools, how frameworks factors affect the work with digital tools and how teachers and special needs teachers work. To fulfill the purpose of the study, qualitative interviews were carried out with three teachers and three special needs teachers. The interviews have been conducted in pairs because teachers and special needs teachers often work together. The theoretical starting point in the study is the framework factor theory and the central parts of the sociocultural perspective about the zone of proximal development, scaffolding and artefacts. After a thematic analysis, the results show that the respondents mostly see benefits of digital tools to benefit students in needs of extra adaptations in their reading and writing development. Central to the result is that the work requires digital competence, teaching since these are framework factors that have effects on pupils’ reading and writing development. The results also show that speech synthesis and a reading service are the significant functions in the tools which teachers and special needs teachers use in their teaching with digital tools. The advantages of the tools that the results show is that they give students an increased motivation and an increased pre-understanding. Finally, the results show that technical problems and a fear of lack of analog tools are the significant disadvantages of digital tools. Finally, the study’s method and the results are discussed in relation to the purpose of the study and the theory.

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