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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.
31

Ein Antiker Sternbilderzyklus und seine Tradierung in Handschriften vom Frühen Mittelalter bis zum Humanismus : Untersuchungen zu den Illustrationen der "Aratea" des Germanicus /

Haffner, Mechtild. January 1997 (has links)
Texte remanié de: Diss.--Philosophisch-Historische Fakultät--Heidelberg, 1993. / Sources manuscrites p. 173-176. Bibliogr. et sources p. 177-205. Table des ill.
32

Bilderböckers familjekonstellationer : En kvalitativ analys av fyra bilderböcker / Picture books´family constellations : A qualitative analysis of four picture books

Pettersson, Anna January 2018 (has links)
This study includes an analysis of a limited number of images from today (1999-2016), to see which family constellations are represented in them. The purpose of the study is to see which family constellations children in pre-school age can identify with. Narratological method is what I have used in this study, which I based on Nikolajevas (2000) and Kårelands (2015) books with their theories and concepts of picture books. In addition, I have also used a norm-critical perspective to see what standards are reflected in children´s literature. In the research overview, previous research has been described, where Gallo (1997) argues that single families have increased, which shows a change in children´s literature and the nuclear family reduced their representation in picture books. My studies results show further change in children´s litterature, where there are still more representations of family constellations in the present time compared to Gallo. My conclusion from this study is that there are several family constellations in picture books that children can identify with, given the community´s developed family constellations. / Denna studie innefattar en analys av ett begränsat antal bilderböcker från nutid (1999-2016), för att se vilka familjekonstellationer som representeras i dem. Syftet med studien är att se vilka familjekonstellationer som barn i förskoleåldern kan identifiera sig med. Narratologisk metod är det som jag har använt i denna studie där jag utgår ifrån Nikolajevas (2000)och Kårelands (2015) böcker med deras teorier och begrepp om bilderböcker. Därtill jag har även använt mig av normkritiskt perspektiv för att se vilka normer som speglas i barnlitteraturen. I Forskningsöversikten finns tidigare forskning beskriven, där Gallo (1997)menar att singelfamiljerna ökat, vilket visar en förändring i barnlitteraturen och att kärnfamiljen minskat sin representation i bilderböcker. Min studies resultat visar ytterligare förändring i barnlitteraturen, där det finns än fler representationer av familjekonstellationer i nutid jämfört med Gallo. Min slutsats från studien är att det finns flera olika familjekonstellationer i bilderböcker som barn kan identifiera sig med, med tanke på samhällets utvecklade familjekonstellationer.
33

The Relations between Gender Roles, Sibling Constellations, and Modern Sexism / Relationer mellan könsroller, syskonkonstellationer och modern sexism

Löf, Emma, Löf, Malin January 2018 (has links)
In this study we investigated the relations between gender roles, siblings and sexism. We wanted to know if boys who spent more time with their sisters were less sexist than those who did not. Another question we asked was if girls who identified with their traditional gender roles were more sexist than those who did not. We sampled 127 high school students in the ages of 15 to 19. The results showed that time spent with sisters among boys, did not significantly correlate with sexism. However boys were more sexist than girls. Girls who identified with their traditional gender roles were less sexist than those who did not. Another important finding was that boys not identifying with the feminine gender role were more sexist than those who did. In conclusion, Contact with sisters did not have a relation to boys being sexist. However, gender and gender roles did. Unexpected findings included the importance of the feminine gender role. Where not identifying with feminine gender role traits for boys showed higher tendencies for sexism. Whereas girls who identified with the feminine traits showed lower tendencies for sexism. / I denna studie undersökte vi relationen mellan könsroller, syskon och sexism. Vi ville veta om pojkar som spenderade mer tid med sina systrar var mindre sexistiska än dem som inte gjorde det. En annan fråga vi undersökte var om flickor som identifierade sig med sin traditionella könsroll var mer sexistiska än dem som inte gjorde det. Vårt urval bestod av 127 gymnasieelever i åldrarna 15 till 19 år. Resultaten visade att tid spenderad med systrar inte var signifikant korrelerat med sexism bland pojkar. Däremot var pojkar mer sexistiska än flickor. Flickor som identifierade sig med sin traditionella könsroll var mindre sexistiska än de som inte gjorde det. En annan viktig upptäckt var att pojkar som inte identifierade sig med den feminina könsrollen var mer sexistiska än de som gjorde det. Sammanfattningsvis, kontakt med systrar hade ingen relation till pojkars sexism. Däremot, hade kön och könsroller det. Oväntade resultat visade betydelsen av den feminina könsrollen där pojkar som inte identifierade sig med den feminina könsrollens egenskaper visade högre tendenser till sexism, medan flickor som identifierade sig med dessa egenskaper visade mindre tendenser till sexism.
34

Jak mohou být ovlivněny sourozenecké konstelace zdravotním znevýhodněním / What influence was health disadvantage on constellation of siblings

Slavíčková, Petra January 2017 (has links)
What influence was health disadvantage on constellation of siblings Author: Bc. Petra Slavíčková ABSTRACT The diploma thesis is focused on the topic of sibling constellation and how these can be influenced by health disabilities, specifically according to the birth order of the disabled child. This is a qualitative research. The data collection is made using interviews with young healthy adult siblings of disabled children. Categorical systems and data comparison sorted per younger and older siblings of disabled children are used for the analysis of collected data. The aim of this thesis is to broaden the issue of siblings of disabled children by a new point of view and find out which conformities and differences are between sibling constellations of younger and older siblings of disabled children. The outcomes of the research revealed numerous differences between younger and older siblings of children with disabilities in the fields of relationships, opinions and attitudes. It was found out generally, that the fact of sibling disability is perceived more by their younger siblings and this fact has a greater influence on their regular life. KEY WORDS family, siblings, sibling constellations, order of birth, health disabilities
35

Enumerative and bijective aspects of combinatorial maps : generalization, unification and application / Aspects énumératifs et bijectifs des cartes combinatoires : généralisation, unification et application

Fang, Wenjie 11 October 2016 (has links)
Le sujet de cette thèse est l'étude énumérative des cartes combinatoires et ses applications à l'énumération des autres objet s combinatoires.Les cartes combinatoires, aussi appelées simplement « cartes », sont un modèle combinatoire riche. Elles sont définies d'une manière intuitive et géométrique, mais elles sont aussi liées à des structures algébriques plus complexes. Par exemple, l'étude d'une famille de cartes appelées des « constellations » donne un cadre unifié à plusieurs problèmes d'énumération des factorisations dans le groupe symétrique. À la croisée des différents domaines, les cartes peuvent être analysées par une grande variété de méthodes, et leur énumération peut aussi nous aider à compter des autres objets combinatoires. Cette thèse présente un ensemble de résultats et de connexions très riches dans le domaine de l'énumération des cartes. Cette thèse se divise en quatre grandes parties. La première partie, qui correspond aux chapitres 1 et 2, est une introduction à l'étude énumérative des cartes. La deuxième partie, qui correspond aux chapitres 3 et 4, contient mes travaux sur l'énumération des constellations, qui sont des cartes particulières présentant un modèle unifié de certains types de factorisation de l'identité dans le groupe symétrique. La troisième partie, qui correspond aux chapitres 5 et 6, présente ma recherche sur le lien énumératif entre les cartes et des autres objets combinatoires, par exemple les généralisations du treillis de Tamari et les graphes aléatoires qui peuvent être plongés dans une surface donnée. La dernière partie correspond au chapitre 7, dé ns lequel je conclus cette thèse avec des perspectives et des directions de recherche dans l'étude énumérative des cartes. / This thesis deals with the enumerative study of combinatorial maps, and its application to the enumeration of other combinatorial objects. Combinatorial maps, or simply maps, form a rich combinatorial model. They have an intuitive and geometric definition, but are also related to some deep algebraic structures. For instance, a special type of maps called \emph{constellations} provides a unifying framework for some enumeration problems concerning factorizations in the symmetric group. Standing on a position where many domains meet, maps can be studied using a large variety of methods, and their enumeration can also help us count other combinatorial objects. This thesis is a sampling from the rich results and connections in the enumeration of maps.This thesis is structured into four major parts. The first part, including Chapter 1 and 2, consist of an introduction to the enumerative study of maps. The second part, Chapter 3 and 4, contains my work in the enumeration of constellations, which are a special type of maps that can serve as a unifying model of some factorizations of die identity in the symmetric group: The third part, composed by Chapter 5 and 6, shows my research on the enumerative link from maps to other combinatori al objects, such as generalizations of the Tamari lattice and random graphs embeddable onto surfaces. The last part is the closing chapter, in which the thesis concludes with some perspectives and future directions in the enumerative study of maps.
36

Rare SERINC2 Variants Are Specific for Alcohol Dependence in Individuals of European Descent

Zuo, Lingjun, Wang, Ke Sheng, Zhang, Xiang Yang, Li, Chiang Shan R., Zhang, Fengyu, Wang, Xiaoping, Chen, Wenan, Gao, Guimin, Zhang, Heping, Krystal, John H., Luo, Xingguang 01 January 2013 (has links)
OBJECTIVES: We have previously reported a top-ranked risk gene [i.e., serine incorporator 2 gene (SERINC2)] for alcohol dependence in individuals of European descent by analyzing the common variants in a genome-wide association study. In the present study, we comprehensively examined the rare variants [minor allele frequency (MAF)<0.05] in the NKAIN1-SERINC2 region to confirm our previous finding. MATERIALS AND METHODS: A discovery sample (1409 European-American patients with alcohol dependence and 1518 European-American controls) and a replication sample (6438 European-Australian family participants with 1645 alcohol-dependent probands) were subjected to an association analysis. A total of 39 903 individuals from 19 other cohorts with 11 different neuropsychiatric and neurological disorders served as contrast groups. The entire NKAIN1-SERINC2 region was imputed in all cohorts using the same reference panels of genotypes that included rare variants from the whole-genome sequencing data. We stringently cleaned the phenotype and genotype data, and obtained a total of about 220 single-nucleotide polymorphisms in individuals of European descent and about 450 single-nucleotide polymorphisms in the individuals of African descent with 0
37

Rare SERINC2 Variants Are Specific for Alcohol Dependence in Individuals of European Descent

Zuo, Lingjun, Wang, Ke Sheng, Zhang, Xiang Yang, Li, Chiang Shan R., Zhang, Fengyu, Wang, Xiaoping, Chen, Wenan, Gao, Guimin, Zhang, Heping, Krystal, John H., Luo, Xingguang 01 January 2013 (has links)
OBJECTIVES: We have previously reported a top-ranked risk gene [i.e., serine incorporator 2 gene (SERINC2)] for alcohol dependence in individuals of European descent by analyzing the common variants in a genome-wide association study. In the present study, we comprehensively examined the rare variants [minor allele frequency (MAF)<0.05] in the NKAIN1-SERINC2 region to confirm our previous finding. MATERIALS AND METHODS: A discovery sample (1409 European-American patients with alcohol dependence and 1518 European-American controls) and a replication sample (6438 European-Australian family participants with 1645 alcohol-dependent probands) were subjected to an association analysis. A total of 39 903 individuals from 19 other cohorts with 11 different neuropsychiatric and neurological disorders served as contrast groups. The entire NKAIN1-SERINC2 region was imputed in all cohorts using the same reference panels of genotypes that included rare variants from the whole-genome sequencing data. We stringently cleaned the phenotype and genotype data, and obtained a total of about 220 single-nucleotide polymorphisms in individuals of European descent and about 450 single-nucleotide polymorphisms in the individuals of African descent with 0
38

Ad-Hoc Regional Coverage Constellations of Cubesats Using Secondary Launches

Zohar, Guy G 01 March 2013 (has links) (PDF)
As development of CubeSat based architectures increase, methods of deploying constellations of CubeSats are required to increase functionality of future systems. Given their low cost and quickly increasing launch opportunities, large numbers of CubeSats can easily be developed and deployed in orbit. However, as secondary payloads, CubeSats are severely limited in their options for deployment into appropriate constellation geometries. This thesis examines the current methods for deploying cubes and proposes new and efficient geometries using secondary launch opportunities. Due to the current deployment hardware architecture, only the use of different launch opportunities, deployment direction, and deployment timing for individual cubes in a single launch are explored. The deployed constellations are examined for equal separation of Cubes in a single plane and effectiveness of ground coverage of two regions. The regions examined are a large near-equatorial zone and a medium sized high latitude, high population density zone. Results indicate that simple deployment strategies can be utilized to provide significant CubeSat dispersion to create efficient constellation geometries. The same deployment strategies can be used to develop a multitude of differently dispersed constellations. Different launch opportunities can be utilized to tailor a constellation for a specific region or mission objective. Constellations can also be augmented using multiple launch opportunities to optimize a constellation towards a specific mission or region. The tools developed to obtain these results can also be used to perform specific analysis on any region in order to optimize future constellations for other applications.
39

Astrofotografia como estratégia no ensino da astronomia / Astrophotography as a strategy in the teaching of astronomy

Amaral, Jose Antonio do 15 March 2019 (has links)
Nesta dissertação, a observação do céu noturno utilizando como instrumento câmeras fotográficas comuns, sem qualquer pretensão profissional, adquire uma dimensão importante como instrumento de apoio ao Ensino de Astronomia, permitindo que estudantes de escolas públicas, ou qualquer pessoa interessada em aprender astronomia, tenha fácil acesso, uma vez que instrumentos óticos como telescópios, são acessíveis a bem poucos. Sob este ponto de vista, é vital oferecer aos estudantes da escola básica e a toda e qualquer pessoa interessada em ciências, oportunidade de participarem de atividades didáticas através da fotografia do céu noturno, resgatando assim o hábito latente de olhar para céu, esquecido pelas novas gerações, vítimas da poluição atmosférica e luminosa, fruto de nossa tecnologia mal dimensionada. O objetivo é incentivar o interesse pela astronomia, estabelecendo um contato sistemático deles com o céu noturno, despertando em cada um a questão fundamental: qual posição ocupamos no contexto do Universo. Este trabalho se preocupa principalmente em proporcionar estratégias acessíveis para fotografar o Céu e de como tratar sobre propostas didáticas para a Fotografia do Céu, utilizando equipamentos simples. Nosso objeto de estudo partiu de uma análise dos conteúdos de astronomia presentes na grade de Ensino Médio das escolas administradas pelo Centro Paula Souza, vinculados aos Parâmetros Curriculares Nacionais. Essa avaliação se apoiou em dois pontos de vista. No primeiro a análise se deu a partir dos conteúdos de astronomia presentes nos livros didáticos adotados pelas escolas para o triênio 2018/2019/2020, alinhados com os Parâmetros Curriculares Nacionais e a grade do ensino médio nas escolas técnicas. O segundo ponto de vista se deu através de uma pesquisa on-line com os estudantes dessas escolas, avaliando o percentual desses conteúdos a que eles efetivamente tiveram contato. Para subsidiar a análise desses percentuais, executamos um estudo sobre o conteúdo de Astronomia, na qual foram elencadas cinco questões, ligadas à proposição de temas abordados pelos professores das disciplinas que contém o tema Astronomia História da Astronomia; Sistema Solar; Estações Climáticas; Sistema Terra-Lua-Sol e Constelações do Hemisfério Sul. Os resultados mostram que, apesar da coerência entre os Parâmetros Curriculares Nacionais e a grade do ensino médio analisados, um percentual significativo de estudantes disseram não terem tido contato com um ou mais temas. A pesquisa serviu como norteadora da necessidade de elaboração e da aplicação de um material didático composto por atividades e oficinas que, utilizando a fotografia do céu noturno, a experimentação e construção de materiais didáticos, atuou como catalizador do aprendizado, reforçando esses conteúdos, utilizando as muitas formas de abordar os conceitos contidos no ensino médio, estimulando os estudantes e até mesmo professores a refletir sobre como nos relacionamos e aprendemos sobre o Universo. / In this work, the observation of the Night Sky using common photographic cameras as instrument, without any professional pretension, acquires an important dimension as a support tool for Astronomy Teaching, allowing students from public schools, or anyone interested in learning astronomy, to have easy access, since optical instruments such as telescopes are accessible to very few people. Under this point of view, it is vital to offer to students of elementary school, and to anybody interested in sciences, the opportunity to participate in didactic activities through photographs of the Night Sky, recovering therefore the habit of looking at the sky, forgotten by the new generations, victims of the atmospheric and luminous pollution, fruit of our ill-directed technology. The goal is to rise the interest for astronomy, establishing a systematic contact with the Night Sky, waking up in each one the fundamental question: which position do we occupy in the context of the Universe? This work concerns mainly in providing accessible strategies to photograph the sky and how do we deal on didactic proposals Sky photographs using simple equipment. Our object of study was based on an analysis of the astronomy contents present in the regular high-school curriculum of the schools administered by the Paula Souza Center, linked to the National Curricular Parameters. This assessment was based on two points of view. In the first one the analysis was based on the astronomy contents present in the textbooks adopted by the schools for the triennium 2018/2019/2020, aligned with the National Curricular Parameters and the high school curriculum in the technical schools. The second point of view was through an online survey with the students of these schools, evaluating the percentage of these contents to which they actually had contact. In order to subsidize the analysis of these percentages, we performed a study on the Astronomy contents, in which five issues were listed, related to the proposal of topics addressed by the teachers of the disciplines that contains the theme Astronomy - \"History of Astronomy\"; \"Solar system\"; \"Climatic seasons\"; \"Sun-Earth-Moon System\" and \"Constellations of the Southern Hemisphere\". The results show that, despite the consistency between the National Curriculum Parameters and the high school curriculum analyzed, a significant percentage of students said they did not have contact with one or more subjects. The research served as a guideline for the need to elaborate and apply a didactic material composed of activities and workshops that, using Night Sky photography, experimentation and construction of didactic materials, acted as a catalyst for learning, reinforcing these contents, using many ways to approach the concepts contained in high school, encouraging students and even teachers to reflect on how we relate and learn about the Universe.
40

[en] STRATEGIC NETWORKS IN AVIATION INDUSTRY: VARIG - STAR ALLIANCE CASE / [pt] REDES ESTRATÉGICAS NO SETOR DE AVIAÇÃO: O CASO VARIG - STAR ALLIANCE

FRANCISCO CARVALHO DE LIMA 04 December 2003 (has links)
[pt] As empresas do setor de aviação sempre celebraram acordos operacionais,no intuito de racionalizar operações e reduzir custos. Com o cenário mundial cada vez mais competitivo e conturbado, a integração em redes de alianças estratégicas torna-se um meio eficaz e cada vez mais comum de sobrevivência e excelência. O propósito desta dissertação de mestrado é abrir caminho para verificar a adequação da associação de empresas em blocos estratégicos no setor de aviação às suas estratégias individuais, por meio do estudo de caso da VARIG como membro da Star Alliance. O desempenho da VARIG também é levado em consideração no estudo como variável dependente, ajudando na compreensão desta adequação. O estudo teve como foco a VARIG, maior empresa aérea da América Latina, e sua associação à Star Alliance, maior aliança entre empresas aéreas atualmente existentes. Dispunha-se de vários bancos de dados para alimentar a pesquisa, provenientes de órgãos e associações ligadas à aviação civil no Brasil e no mundo. Também foram analisadas as percepções dos principais executivos da VARIG (envolvidos em atividades da Star Alliance) sobre a importância das alianças para a estratégia da VARIG, coletadas com auxílio de um questionário semi-estruturado como instrumento principal. O presente estudo procura, com o auxílio de um novo ferramental para realizar análises estratégicas na perspectiva relacional, analisar as implicações estratégicas da associação em Redes e Alianças sobre os negócios e estratégias da VARIG. / [en] In order to rationalise operations and reduce costs, airlines have always celebrated operational agreements. As the world scenario becomes more competitive and turbulent, networks of strategic alliances become an effective and common tool for survival and excellence. The objective of this thesis is to pave the way for studies that verify the analysis of the strategic fit of companies in forming strategic blocks in the aviation industry by way of a case study of VARIG as a member of Star Alliance. Performance is also taken into consideration in the scope of the case study, as a dependent variable, so as to better assess the fit at issue. The study focuses on VARIG, the largest Latin American airline, and its association with Star Alliance, currently the greatest airline alliance. Several civil aviation organisations and associations, located in Brazil and world-wide, provide useful data banks for the research. With the help of a semi-structured questionnaire, the study also collected data regarding the perception of VARIGs main executives (those involved in Star Alliance activities) on the importance of alliances for VARIGs strategy. The study aims at analysing the strategic implications of VARIGs association in alliances for its businesses and strategies, using a new tool developed to carry out strategic analysis from a relational perspective.

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