To see the other types of publications on this topic, follow the link: Geometrı́a moderna.

Dissertations / Theses on the topic 'Geometrı́a moderna'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Geometrı́a moderna.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Moschetti, Marcelo. "Navegando em um oceano infinito = a física geométrica de Galileu e o problema do contínuo." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/280327.

Full text
Abstract:
Orientador : Fatima Regina Rodrigues Evora<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Filosofia e Ciências Humanas<br>Made available in DSpace on 2018-08-17T23:56:45Z (GMT). No. of bitstreams: 1 Moschetti_Marcelo_D.pdf: 1071583 bytes, checksum: f3b9175acce31ce1e2539b5d4f9f78be (MD5) Previous issue date: 2011<br>Resumo: A conhecida passagem do Ensaiador (1623) sobre a linguagem geométrica da natureza pode ser considerada uma síntese do projeto galileano: dirigir-se à natureza sem conhecer essa linguagem é um inútil vaguear em um obscuro labirinto. Na defesa da necessidade do uso da geometria na filosofia natural, destaca-se o problema da tese tradicional da heterogeneidade entre a exatidão matemática e a matéria imperfeita. Para resolvê-lo (e para recusar essa heterogeneidade), o autor mostra que só a geometria permite a superação das dificuldades relacionadas com o contínuo. Tal discussão é assunto dos Discursos sobre as duas novas ciências (1638). Tanto o atomismo incomum presente na obra quanto as novidades referentes ao estudo do movimento dependem do tratamento geométrico dado ao problema do contínuo. Por outro lado, a tensão entre a exatidão matemática e a imprecisão dos dados da experiência, que é responsável por parte das controvérsias interpretativas que envolvem Galileu, é fundamental para que se compreenda sua proposta de uma nova física<br>Abstract: The well-known quotation of The Assayer (1623) concerning the geometrical language of nature can be taken as a synthesis of galileo's project: turning to nature without knowing that language is an useless errantry on a dark labyrinth. The problem of the traditional thesis on the heterogeneity of mathematical exactness and the imperfection of matter is highlighted by Galileo in his defense of the necessity of using Geometry in Natural Philosophy. For solving it (and for refusing the heterogeneity), the author shows that only Geometry makes it possible to overcome the difficulties related to the continuum. This discussion is present in his Discourses concerning the two new sciences (1638). Both the uncommon atomism found in the book and the news related to the study of movement rely on the geometrical approach on the problem of the continuum. Otherwise, the tension between mathematical exactness and the lack of accuracy of the data from experience, wich causes controversies concerning Galileo, is fundamental for understanding his proposal of a new Physics<br>Doutorado<br>Historia da Filosofia<br>Doutor em Filosofia
APA, Harvard, Vancouver, ISO, and other styles
2

Birkar, Caucher. "Topics in modern algebraic geometry." Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421475.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Britto, Luciana Patrocínio de. "Scipione di Pierro Neto e sua proposta para o ensino da geometria na Coleção Curso Colegial Moderno." Pontifícia Universidade Católica de São Paulo, 2008. https://tede2.pucsp.br/handle/handle/11324.

Full text
Abstract:
Made available in DSpace on 2016-04-27T16:58:43Z (GMT). No. of bitstreams: 1 Luciana Patrocinio de Britto.pdf: 5673631 bytes, checksum: f0957e0c826f9817101ebd36fcee7234 (MD5) Previous issue date: 2008-09-05<br>Secretaria da Educação do Estado de São Paulo<br>The present research is aimed to study Coleção Curso Colegial Moderno , by the professor Scipione Di Pierro Neto with Ruy Madsen Barbosa and Luiz Mauro Rocha as partners, has come out during Modern Mathematics. This collection was considered as a reference at this period for being one of the first to be published at that time. Scipione Di Pierro Neto´s documents were consulted such as: his doctorate thesis and some interviews related to Modern Mathematics Movement in Brazil. These document analysis were based on Le Goff´s theory, that analyzes the many different ways of history production, and on the book collection in Choppin´s text (2000), that considers the ideological and cultural critics from books and its contents according to a epistemological or educational perspective. The Geometry teaching tendencies, at Modern Mathematics Movement, were to geometric changings, vectorials studies of spaces and also axioms Euclides´s changings. This research is aimed to analyze which of these tendencies were followed according to Coleção Curso Colegial Moderno . It was known that the authors followed some of its tendencies such as the use of the language set to introduce plane geometry at the first volume, and the geometric information at the second volume. It was also noticed that the books had a different look from the educational ones at that period; they used to have many well designed and illustrative pictures as well as very clear explanations with an easy language that could be understood by any student<br>O presente trabalho teve como objetivo estudar a Coleção Curso Colegial Moderno, de autoria do professor Scipione Di Pierro Neto em parceria com Ruy Madsen Barbosa e Luiz Mauro Rocha, publicada em tempos de Matemática Moderna. Essa coleção foi considerada como referência na época por ser uma das primeiras publicadas neste período. Foram consultados documentos do professor Scipione Di Pierro Neto, tais como: sua tese de doutorado e entrevistas relacionadas ao período da Matemática Moderna no Brasil. As análises dos documentos foram baseadas na teoria de Le Goff (1992), que analisa as diferentes formas de produção da história, e a análise da Coleção de livros no texto de Choppin (2000), que considera a crítica ideológica e cultural de livros e seus conteúdos segundo uma perspectiva epistemológica ou didática. As tendências para o ensino da Geometria, no Movimento da Matemática Moderna, eram voltadas para as transformações geométricas, estudos dos espaços vetoriais e modificações nos axiomas de Euclides. Essa pesquisa visa analisar quais dessas tendências foram seguidas na Coleção Curso Colegial Moderno. E foi constatado que os autores acompanharam algumas tendências do Movimento, como a utilização da linguagem dos conjuntos para introdução da geometria plana no primeiro volume, e as transformações geométricas no segundo volume. Notouse também que os livros tinham um visual diferente dos livros didáticos da época, pois apresentavam muitas figuras ilustrativas bem feitas e textos explicativos muito bem escritos, com uma linguagem acessível aos alunos
APA, Harvard, Vancouver, ISO, and other styles
4

Teixeira, Rafael Montoito [UNESP]. "Euclid and his modern rivals (1879), Lewis Carrol: tradução e crítica." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/102058.

Full text
Abstract:
Made available in DSpace on 2014-06-11T19:31:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-02-20Bitstream added on 2014-06-13T19:42:12Z : No. of bitstreams: 1 teixeira_rm_dr_bauru_parcial.pdf: 111488 bytes, checksum: e9fa8823a498c65c3c42d1e0ab5c50e5 (MD5) Bitstreams deleted on 2015-02-27T13:20:34Z: teixeira_rm_dr_bauru_parcial.pdf,Bitstream added on 2015-02-27T13:21:10Z : No. of bitstreams: 1 000718279.pdf: 1830647 bytes, checksum: 9937a8f4386e488a6aa662a94b1ed414 (MD5)<br>Este trabalho apresenta uma tradução de Euclid and his modern rivals, de Lewis Carrol, seguida de dois ensaios analíticos desta obra. O livro de Carrol - inédito em língua portuguesa - defende, na forma de uma peça teatral, Os Elementos de Euclides como o melhor livro-texto para o ensino de Matemática numa época em que o sistema de educação da Inglaterra passava por uma revisão que incluiu a possibilidade de substituir o texto de Euclides por outro manual, mais moderno, mais prático e que representasse as trasnformações que representasse as transformações que caracterizam o final dos século XIX. Nos ensais, dentre outros aspectos, tematiza-se a atividade de traduzir, mobilizando teóricos da tradução e elementos gerais da obra sde Lewis Carrol. Considerando necessário compreender como o livro situa-se na história da ideias científicas - isto é, tornando-o como fonte historiográfica -, procedendo a uma investigação sobre o momento - o tempo e o espaço - em que foi escrito, do que resultaram compreensões que vinculam a elaboração do texto ao cenário da época vitoriana e às vivências pessoais do seu autor. Os dois ensaios, com a íntegra da tradução e com as notas de rodapé a ela incorporadas, compõem um esforço hermenêutico para compreender o Euclides e Seus Rivais Modernos e, consequentemente, apresentá-lo ao leitor<br>This work begins with a translation of Lewis Carroll's - Euclid and His Modern Rivals - followed by two texts which intend to be an initial hermeneutical analysis of it. This book - of which had not yet a translation to Portuguese -, was written as a theoretical play and claims that there is no better textbook than the Elements of Euclid for teaching Mathematics. Carrol does his defense of Euclid in a period in which the Enghish educational system is going through and extended revision, a time when the reform parameters consider the possibility of changing the books of Euclid for another manual, so to speak, more modern, more practical and more representative of the transformations that characterize the end of the 19th century. In our two essays, among other aspects, we study the activity of translating, mobilizing translation theorists and some general elements of Lewis Carrol's works in Math and Literature. Considering necessary to understand how the book takes part in the history of the scientific ideas - or, in other words, trying to undestand it as a historical source -, an investigation was made about the moment in which it was written, its time and its space. From this approach it was possible to elaborate a text studying the scenario of the Victorian period, revealing aspects of what we think to be some personal experiments of the author. Both texts - which must be considered in the light of the translation to the Portuguese language - are presented as an introduction of Euclid and His Modern Rivals, an effort to understand it and to present it to Portuguese speakers
APA, Harvard, Vancouver, ISO, and other styles
5

Saorín, Gómez Eugenia [Verfasser]. "Modern aspects of classical convex geometry / Eugenia Saorín Gómez." Magdeburg : Universitätsbibliothek, 2018. http://d-nb.info/1166753131/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Tiffin, Jessica. "Marvellous geometry : narrative and metafiction in modern fairy tale." Doctoral thesis, University of Cape Town, 2003. http://hdl.handle.net/11427/7963.

Full text
Abstract:
Bibliography: leaves 190-201.<br>Despite the age of the fairy-tale tradition, and its focus on fairly primitive aspects of human experience, fairy tale is able to adapt itself to a range of cultures and contexts, including numerous examples in the twentieth century. Various authors and film-makers are reasserting the power and value of the fairy tale as a response even to the uncertain and ironic experience of contemporary culture. The suitability of fairy tale to modern texts rests partially in its qualities of inherentmetafictionality, the extent to which it self-consciously denies mimesis. This gives it particular relevance to postmodernism, as does the structuredness which facilitates self-aware play with genre. At the same time, the status of oral fairy tale as a folk form connects interestingly with postmodernism's blurring of the boundaries between high and low culture. This has particular implications for the presence of fairy tale within texts traditionally considered as popular culture, herethe fantasy/science fiction ghetto, and the Hollywood film. This thesis chooses to focus on texts which attempt to write actual fairy tale, rather than those which use fairy-tale motifs thematically. In making this distinction, attention is paid to particular aspects of recognisable fairy-tale texture, that is, overall effect, which relies on elements of pattern, structure, simplification, symbolism, ahistorisicim, the construction of a removed and marvellous world, and a tone of certainty which necessitates a response of accepting wonder in the reader.
APA, Harvard, Vancouver, ISO, and other styles
7

Luz, Vania de Andrade. "Um estudo sobre o Ensino de Transformações Geométricas: da reforma da Matemática Moderna aos dias atuais." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/11129.

Full text
Abstract:
Made available in DSpace on 2016-04-27T16:57:53Z (GMT). No. of bitstreams: 1 dissertacao_vania_andrade_luz.pdf: 1642035 bytes, checksum: 179a6afec6f9633eb81f44f31826cdea (MD5) Previous issue date: 2007-04-09<br>This dissertation consists of a study focused on the teaching of geometrical transformations based on the analysis of exercises suggested in didactical books published since the 1960s in São Paulo State. The realization of this work is supported by an analysis with the following objectives: to examine the completion of the local mathematical organizations according to the Anthropological Theory of Didactics, by Yves Chevallard; to observe how the students main difficulties were approached, based on research by Jaime and Gutiérrez (1996) and Jahn (1998); to compare the teaching proposals of isometries and homoteties current at the time of the movement of reformation of Modern Mathematics to those which followed the publishing of the Parâmetros Curriculares Nationais (Brazilian National Curricular Standards). Initially, we proceeded to a study of the mathematical organization relative to geometrical transformations, a study in which will be examined the symmetries of elements of nature and the arts, the definitions of the main transformations that are part of the program of Ensino Fundamental (equivalent to an eight-year elementary school), besides the identification of historical elements related to the development of Geometry. After that, we will be moving on to the study of the didactical organization, in which researches about the teaching and learning of isometries were verified, as well as official texts as Curricular Guides, Proposals and Standards, besides a few aspects of the movement of reformation of Modern Mathematics in Brazil, and its relationship with the same movement in the United States and France. The analysis of the books was carried out from the grouping of exercises in types of tasks, a qualification used as much for the identification of the resolution techniques, as for the distinction of the technology appropriate to the justification of the former. Following that, we have performed a study of the set of proposed exercises, in which the above-mentioned was complied with, in the second paragraph of this abstract, as objectives of the analysis that was developed. Departing from the adopted theoretical basis, the conclusions of the research indicate that the orientations observed in each of the analyzed periods would not guarantee, per se, that important problems in the teaching of transformations were resolved. As it is known, the period correspondent to the movement of reformation of Modern Mathematics has emphasized the mathematical structure, whereas the period that followed the publishing of the Parâmetros Curriculares highlighted the relationship of isometries and homoteties with superior levels of mathematical determination. In the first case, the visibility of the mathematical work was not highlighted, while in the second one, the absence of technological elements might have compromised the completion of the mathematical organization<br>Esta dissertação consiste em um estudo focado no ensino de transformações geométricas e organizado com base na análise de exercícios propostos em livros didáticos publicados, a partir dos anos 60, no Estado de São Paulo. A realização deste trabalho apóia-se em uma análise com os seguintes objetivos: examinar a completude das organizações matemáticas locais conforme a Teoria Antropológica do Didático, de Yves Chevallard; observar como foram abordadas as principais dificuldades dos alunos, com base nas pesquisas de Jaime e Gutiérrez (1996) e de Jahn (1998); comparar as propostas de ensino de isometrias e homotetias vigentes à época do movimento de reforma da Matemática Moderna com aquelas que se seguiram à publicação dos Parâmetros Curriculares Nacionais. Inicialmente, procedemos a um estudo da organização matemática relativa a transformações geométricas, estudo no qual são examinadas as simetrias presentes em elementos da natureza e das artes, as definições das principais transformações que fazem parte do programa do Ensino Fundamental, além da identificação de elementos históricos relacionados ao desenvolvimento da geometria. Em seguida, passamos ao estudo da organização didática, no qual se averiguaram pesquisas sobre ensino e aprendizagem de isometrias, textos oficiais como Guias, Proposta e Parâmetros Curriculares, além de alguns aspectos do movimento de reforma da Matemática Moderna no Brasil, e sua relação com o mesmo movimento nos Estados Unidos e na França. A análise dos livros foi feita a partir do agrupamento dos exercícios em tipos de tarefas, qualificação essa utilizada tanto para a identificação da técnica de resolução, como para a distinção da tecnologia apropriada à justificação da primeira. Em seguida, efetuamos um estudo do conjunto dos exercícios propostos, no qual se encaminhou o cumprimento do acima exposto, no segundo parágrafo deste resumo, como objetivos da análise desenvolvida. A partir da base teórica adotada, as conclusões da pesquisa indicam que as orientações observadas em cada um dos períodos analisados não garantiriam, por si, que importantes problemas no ensino de transformações fossem resolvidos. Como sabido, a época correspondente ao movimento de reforma da Matemática Moderna enfatizou a estrutura matemática, ao passo que o período que se seguiu à publicação dos Parâmetros Curriculares destacou a relação de isometrias e homotetias com níveis superiores de determinação matemática. No primeiro caso, a visibilidade da obra matemática não foi destacada, enquanto, no segundo, a ausência de elementos tecnológicos pode ter comprometido a completude da organização matemática
APA, Harvard, Vancouver, ISO, and other styles
8

Sheward, Rosie Melanie. "Cell size, coccosphere geometry and growth in modern and fossil coccolithophores." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/397327/.

Full text
Abstract:
Coccolithophores are a key phytoplankton group that exhibit remarkable diversity in their biology, ecology, and in the highly distinctive morphological architecture of their calcite exoskeletons (coccospheres). Their extensive fossil record is testament to the crucial role that they play in the biogeochemical cycling of carbon through the production and export of inorganic coccoliths and organic matter. This fossil record provides an excellent archive of their biotic responses to environmental variability over thousands to millions of years that can be used to investigate the possible sensitivity of coccolithophores to potential changes in future climate. In this thesis, I explore how the fossil record of coccospheres can be utilized to investigate coccolithophore growth and physiology, providing a new cellular-level perspective on how we understand their interactions with global climate. This work focuses particularly on coccolithophores during the Paleogene, ~66 to ~23 million years ago, that was characterized by initially warm, high CO2 ‘greenhouse’ conditions that progressively cooled, involving substantial restructuring of marine systems. By imaging and measuring thousands of individual coccospheres, I have extensively documented the fundamentals of coccosphere architecture, including coccosphere size and shape and its relationship to coccolith size, number of coccoliths and their arrangement around each cell. This unprecedented dataset reveals the remarkable level of diversity in the architecture of Paleogene coccospheres for the first time, including multiple extinct species that had not previously been observed in this original form. Understanding what this dataset of coccosphere ‘geometry’ can tell us has necessitated the parallel exploration of modern coccolithophore biomineralisation and physiology. My culturing experiments on multiple modern species reveal that cell size and the number of coccoliths per cell is strongly regulated by cellular physiology, specifically responding to a decoupling between cellular division and calcification ability as populations transition between exponential and non-exponential phases of growth. Drawing direct comparisons between the coccosphere geometry of modern and fossil coccolithophores enables a proxy for growth phase to be developed that allows cellular physiology in the fossil record to be directly investigated. This is a potentially powerful new tool for understanding biotic-abiotic interactions in geological time. Furthermore, taxon-specific cellular geometry information provides us with a unique means to begin to reconstruct community-level cellular size structure and, crucially, its associated biovolume. These first reconstructions of community cell size structure across the transition from the Early Eocene greenhouse to the Early Oligocene icehouse demonstrate a massive shift in community biovolume distribution towards larger cells. This radically different-looking community must, in part, reflect the ability of the environment to support the demands of larger cells. Taken in conjunction with inferred changes in nutrient availability by the Late Eocene, this shift in population size structure was likely accompanied by an increase in community biomass, with potentially important implications for carbon export and size-specific grazing. Overall, my research illustrates that coccosphere geometry is a valuable tool for investigating fossil coccolithophore assemblages as populations of individual cells that are recording daily physiological responses to their immediate environment that ultimately determines the response of species and communities to environmental change.
APA, Harvard, Vancouver, ISO, and other styles
9

Andrews, Noam. "Irregular Bodies: Polyhedral Geometry and Material Culture in Early Modern Germany." Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:33493270.

Full text
Abstract:
The dissertation explores the centrality of the Platonic Solids, and polyhedral geometry generally, to the artistic and mixed-mathematical cultures of Renaissance Germany. Beginning with Albrecht Dürer’s groundbreaking treatise on geometry, the Underweyung der Messung (1525), the dissertation redefines sites of early modern experimentation to include the graphical spaces in which new geometrical knowledge was practiced, invented, contested, manipulated, discarded, and presented. The research describes the historical contexts and development of the practice of polyhedral geometry over the course of the 16th century, expanding from Dürer to the lesser-known textbooks for practical geometry that his work inspired in Germany, and continuing with epitomes of the polyhedral genre, namely Wenzel Jamnitzer’s Perspectiva corporum regularium (1568) and the drawings of the Augsburg artisan Lorentz Stöer. The dissertation then follows the migration of polyhedra into intarsia and turned-ivory artifacts used for teaching applied geometry to European aristocracy, and concludes by addressing the polyhedral cosmology of the astronomer Johannes Kepler. By tracing the lifespan of polyhedra from their use as perspectival tools and pedagogical devices in Renaissance workshops into courtly Kunstkammern and onto the precious surfaces of domestic objects, the dissertation uncovers the influence that the decorative arts had on the conceptualization of geometrical knowledge and its new engagement with materials and concepts of materiality.<br>History of Science
APA, Harvard, Vancouver, ISO, and other styles
10

Ferreira, Rogério Carlos. "Orientações curriculares para o ensino de geometria: do período da Matemática Moderna ao momento atual." Pontifícia Universidade Católica de São Paulo, 2008. https://tede2.pucsp.br/handle/handle/11368.

Full text
Abstract:
Made available in DSpace on 2016-04-27T16:58:51Z (GMT). No. of bitstreams: 1 Rogerio Carlos Ferreira.pdf: 17649247 bytes, checksum: 7d165a94d93ae32bcb915ab880744d60 (MD5) Previous issue date: 2008-12-08<br>Secretaria da Educação do Estado de São Paulo<br>The present research is aimed to study Curricular Proposals produced since the Modern Mathematic´s Movement until the current days and to analyze how some didactic book collections had incorporated these Proposals. The consulted official documents had been the Curricular Guides of the State of São Paulo (1975), the National Proposal Curricular for Mathematc´s teaching of the State of São Paulo (1992) and Curricular Parameters for the Mathematics (1998), referring to the segment of the corresponding degree to current 6º. 9º. Year of Ensino Fundamental . The studied didactic collections had been: Matemática Curso Moderno , by Osvaldo Sangiorgi (1968 and 1971), A Conquista da Matemática , by Giovanni, Castrucci and Giovanni Jr (1992), and Matemática para Todos , by Luiz Marcio Imenes and Marcelo Lellis (2002). For the analysis of these documents and didactic books we take for base the theories of Roger Chartier (1991), which studies the different existing relations between the reading of the official legislation and the interpretation made by users. The analysis of didactic books had as focus the content of Geometry, and we support them in the studies of Josep Gascón (2001 and 2003) where the author argues interferences of episteologics and didactic models in the management of the Geometry´s lessons. In our analysis, we in such a way observe the interference of the Euclidianist model in the Curricular Guides as in the Matemática Curso Moderno , of the Almost-empiric model in the Proposal Curricular and the collection A Conquista da Matemática and a Construtivist perspective in the in the National Curricular Parameters for the Mathematics and also in the collection Matemática para Todos , also preserving sufficiently the Almost-empiric model<br>O objetivo do presente trabalho é estudar orientações curriculares produzidas desde o Movimento da Matemática Moderna até os dias atuais e analisar como algumas coleções de livros didáticos incorporaram essas orientações. Os documentos oficiais consultados foram os Guias Curriculares do Estado de São Paulo (1975), a Proposta Curricular para o Ensino de Matemática do Estado de São Paulo (1992) e os Parâmetros Curriculares Nacionais para a Matemática (1998), no que se refere ao segmento da escolaridade correspondente ao atual 6º. A 9º. Ano do Ensino Fundamental. As coleções didáticas estudadas foram: Matemática Curso Moderno, de Osvaldo Sangiorgi (1968 e 1971), A conquista da Matemática de Giovanni, Castrucci e Giovanni Jr. (1992), e Matemática para todos de Luiz Marcio Imenes e Marcelo Lellis (2002). Para a análise desses documentos e livros didáticos tomamos por base as teorias de Roger Chartier (1991), que estuda as diferentes relações existentes entre a leitura da legislação oficial e a interpretação feita pelos usuários. A análise dos livros didáticos teve como foco o conteúdo de Geometria, e nos apoiamos em estudos de Josep Gascón (2001 e 2003) em que o autor discute interferências de modelos epistemológicos e didáticos na gestão da aula de Geometria. Em nossa análise, observamos a interferência do modelo Euclidianista tanto nos Guias Curriculares como na coleção Matemática Curso Moderno, do modelo Quase-empirista na Proposta Curricular e na coleção A conquista da Matemática e uma perspectiva Construtivista nos Parâmetros Curriculares Nacionais para a Matemática e também na coleção Matemática para todos , embora também preservando bastante o modelo Quase-empirista
APA, Harvard, Vancouver, ISO, and other styles
11

Mendonça, Thiago Neves. "Que geometria ensinar às crianças em tempos de matemática moderna? referências e práticas de uma professora da cidade de Juiz de Fora." Universidade Federal de Juiz de Fora (UFJF), 2016. https://repositorio.ufjf.br/jspui/handle/ufjf/3630.

Full text
Abstract:
Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-03-10T13:45:00Z No. of bitstreams: 1 thiagonevesmendonca.pdf: 4703553 bytes, checksum: a2016aef7683ee3899be8eb5a4cc6e17 (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-03-13T19:03:40Z (GMT) No. of bitstreams: 1 thiagonevesmendonca.pdf: 4703553 bytes, checksum: a2016aef7683ee3899be8eb5a4cc6e17 (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-03-13T19:16:41Z (GMT) No. of bitstreams: 1 thiagonevesmendonca.pdf: 4703553 bytes, checksum: a2016aef7683ee3899be8eb5a4cc6e17 (MD5)<br>Made available in DSpace on 2017-03-13T19:16:41Z (GMT). No. of bitstreams: 1 thiagonevesmendonca.pdf: 4703553 bytes, checksum: a2016aef7683ee3899be8eb5a4cc6e17 (MD5) Previous issue date: 2016-11-10<br>O presente trabalho tem por objetivo a investigação histórica da presença da Geometria no Ensino Primário em Minas Gerais, entre a década de 1960 e 1970, quando as ideias do Movimento da Matemática Moderna (MMM) eram discutidas no país. Tomou-se como objeto de pesquisa materiais que pertenceram a uma professora, que atuou na rede de ensino na cidade de Juiz de Fora nesse período. A pesquisa orientou-se pelas seguintes questões: Qual Geometria era proposta para ensinar às crianças no período do MMM na cidade de Juiz de Fora? Quais os conteúdos? Com quais métodos? Para o seu desenvolvimento buscou-se referência nas concepções de produção histórica propostas por Marc Bloch, nos aportes da história das disciplinas escolares de André Chervel, nas contribuições de Dominique Julia sobre a cultura escolar e nos estudos de Alain Choppin sobre os manuais didáticos como fontes para a pesquisa histórica. Foram também mobilizados vários estudos já realizados no campo da história da educação matemática, não só a título de revisão de literatura, mas também com o objetivo de dialogar com o presente trabalho. O estudo da literatura sobre o MMM permitiu elencar as seguintes categorias para analisar o ensino de Geometria: presença da topologia; utilização de construções geométricas; uso da linguagem de conjuntos; referências à pesquisadores como Dienes e Piaget; uso de imagens e diagramas; uso de materiais didáticos; justificativa de propriedades. Foram analisados os seguintes documentos: os Programas de Ensino Primário de Minas Gerais, publicados em 1961 e 1965; exemplares das revistas pedagógicas AMAE Educando e Revista do Ensino; materiais pertencentes ao acervo da professora, tais como livros didáticos, manuais pedagógicos e cadernos. Em síntese, a análise dos documentos e materiais revela pouca presença do que se discutiu em termos de propostas para o ensino de Geometria na perspectiva da Matemática Moderna. São mais evidentes as influências de vagas pedagógicas já consolidadas, que conferiam à observação das formas papel central na aprendizagem de Geometria pelas crianças.<br>This work aims to historical research of the presence of Geometry in Primary Education in Minas Gerais, between the 1960s and 1970s, when the ideas of the Movement of the Modern Mathematics (MMM) were discussed in the country. It becomes an object of research materials that belonged to a teacher, who served in the school system in the city of Juiz de Fora in that period. The research was guided by the following questions: what Geometry proposal was to teach children in MMM period in the city of Juiz de Fora? What are the contents? With what methods? For its development sought to reference the historical production of ideas proposed by Marc Bloch, the theoretical basis of the history of school subjects by André Chervel, in Dominique Julia's contributions to the school culture and the studies of Alain Choppin on textbooks as sources for historical research. Were also mobilized several studies conducted in the field of history of mathematics education, not only by the way of literature review, but also in order to get acquainted with this work. The study of literature on the MMM permitted the determination of the following categories to analyze the teaching of Geometry: the presence of topology; use of the geometric constructions; use of sets of language; references to researchers as Dienes and Piaget; use of images and diagrams; use of teaching materials; justification properties. The following documents were analyzed: the Primary Schools Learning Programs of Minas Gerais, published in 1961 and 1965; copies of educational magazines AMAE Educando and Revista do Ensino; materials belonging to the teacher's collection, such as textbooks, teaching manuals and notebooks. In summary, the analysis of documents and materials reveal a small presence of what is discussed in terms of proposals for teaching geometry in the context of Modern Mathematics. Most obvious are the influences of teaching vacancies already consolidated, which conferred the observation of the central role forms in Geometry learning by children.
APA, Harvard, Vancouver, ISO, and other styles
12

Confalonieri, Sara. "Impossibility results : from geometry to analysis : a study in early modern conceptions of impossibility." Paris 7, 2014. http://www.theses.fr/2014PA070060.

Full text
Abstract:
Cette dissertation a pour thème l'étude des résultats d'impossibilité dans le contexte de la géométrie classique (XVllème siècle). Dans cette étude, J'adresserai les questions suivantes. Comment les géomètres classiques ont démontré (ou argumenté pour) l'impossibilité de résoudre certains problèmes par des moyens donnés ? Peut-on identifier des structures et rôles similaires dans des différentes instances de ces arguments d'impossibilité ? Mon point de départ est un des premiers exemples de pensée algébrique en géométrie, c'est à dire le marquant traité « La Géométrie » De Descartes. Mon examen de cette oeuvre concernera des points méthodologiques, tels que les fondements de la distinction entre courbes géométriques et mécaniques, ainsi que la classification des courbes et de problèmes. Dans mont travail, j'avancerai la suivante thèse générale : les résultats conditionnels d'impossibilité exercent un double rôle méthodologique. Premièrement, ils servent à démarquer les courbes acceptables des courbes non acceptables. Deuxièmement, ils entrent dans la classification des problèmes sur la base des courbes qui entrent dans leur construction, proposée par Descartes dans le troisième livre de « La Géométrie », et commentée par Van Schooten dans ses éditions en latin de 1649 et 1659. La présence de résultats d'impossibilité dans un traité, tel que que « La Géométrie », dédiée aux fondements d'une méthode pour résoudre tous les problèmes de géométrie, n'est pas surprenante, car une telle méthode devrait offrir les règles générales pour résoudre chaque problème selon les moyens les plus adéquats. Un autre, intéressant ébauche d'une classification de problèmes entre « possibles et « impossibles » peut être trouvé dans la correspondance entre Descartes et Mersenne. En particulier, le problème de la quadrature du cercle est conçu par Descartes comme une instance de « problème impossible ». Plus en général, le problème de la quadrature du cercle représentait un problème fort intéressant dans le contexte de la recherche aux XVlème et XVllème siècles. Non seulement il s'agissait d'un problème difficile, mais il avait un rôle métathéorique (ou méthodologique) important, car il pouvait être invoqué afin de distinguer les méthodes légitimes en géométrie des méthodes illégitimes<br>This dissertation deals with impossibility results in the context of early modern geometry (XVIlth century). The main problems and questions I shall address in my study are the following. How did early modem geometers prove (or argued for) the impossibilities of solving construction problems by prescribed means? Can we identify similar structures and similar roles in different instances of these impossibility arguments? My starting point is one of the first exemples of algebraic thinking in geometry, namely, Descartes' epoch-making « La Géométrie » (1637). My examination of « La Géométrie » mainly concerns the methodological points of this treatise: the foundations of the distinction between geometrical and mechanical curves, and the classification of curves and problems. A general thesis I advance in my work is that conditional impossibility claims exerted a twofold methodological, or metatheoretical role. Firstly, they contribute to frame the demarcation between acceptable and non acceptable curves. Secondly, conditional impossibility claims enter in the classification of problems on the ground of the curves which construct them, sketched in the third Book of « La Géométrie » an( commented by Van Schooten in his latin editions from 1649 and 1659. The presence of impossibility claims in a treatise, like Descartes' « Géométrie », devoted to lay down the fundamentals of a method to solve all problems of geometry, is not surprising, in so far such a method should provide the guidelines in order to solve each problem according to the most adequate means
APA, Harvard, Vancouver, ISO, and other styles
13

Zajíc, Jiří. "Modern Methods for Tree Graph Structures Rendering." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2013. http://www.nusl.cz/ntk/nusl-412891.

Full text
Abstract:
Tento projekt se věnuje problematice zobrazení velkých hierarchických struktur, zejména možnostem vizualizace stromových grafů. Cílem je implementace hyperbolického prohlížeče ve webovém prostředí, který využívá potenciálu neeukleidovské geometrie k promítnutí stromu na hyperbolickou rovinu. Velký důraz je kladen na uživatelsky přívětivou manipulaci se zobrazovaným modelem a snadnou orientaci.
APA, Harvard, Vancouver, ISO, and other styles
14

Serra, Riera Enric. "Geometria i projecte del sòl als orígens de la Barcelona moderna : la vila de Gràcia." Doctoral thesis, Universitat Politècnica de Catalunya, 1993. http://hdl.handle.net/10803/113379.

Full text
Abstract:
Esta tesis doctoral explora las relaciones entre la geometría bidimensional entendida como arte grafico y los primeros proyectos para la extensión de Barcelona durante el Siglo XIX. El ámbito de estudio lo constituyen los proyectos de suelo que se plantean en el territorio de Gracia entre 1805 y 1897. Se restituyen estos documentos en base a las descripciones de los protocolos notariales.
APA, Harvard, Vancouver, ISO, and other styles
15

Cuesta, Torralvo Elisabeth. "Geometric morphometrics and topographic analyses of dental wear in modern human populations." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/673455.

Full text
Abstract:
Dental wear is a natural, complex, physiological process of gradual enamel tissue loss that occurs during an individual’s life span and provides information about dietary habits, food processing techniques and cultural practices. Many studies have characterised dental wear in human populations by using observer-dependent, qualitative methods. In contrast, more objective, quantitative approaches have been scarcely used. This thesis aims to assess differences in molar morphology among modern human populations and the effect of dental wear on shape by using novel quantitative methods, such as the percentage of dentine exposure (PDE), 3D geometric morphometrics (GM) and dental topography. The PDE of mandibular permanent first molars recorded in a known-age Baka Pygmy forager population showed an close relationship between wear and age, no sexual dimorphism in wear patterns and reduced PDE values of ≈4% for a foraging population relying on Underground Storage Organs (USO) consumption, likely due to culture-specific dietary proclivities that influenced dental wear rates. Three-dimensional (3D) dental crown analyses (GM and dental topography) carried out in maxillary and mandibular permanent first and second molars of the Coimbra International Exchange known age-at-death skull collection showed significant regressions between the morphometric variables and age-at-death, with a significant portion of the overall shape variation attributed to anatomical traits (e.g. cusp and groove patterns) independently of wear, while another significant portion attributed to the loss of dental crown height with age. The 3D-GM PCA procedure applied to the repeated measurement test showed an intra-observer methodological error <5%. Dental topographic analysis of the Portuguese sample showed negative correlations with age in all analysed teeth, with surface curvature (DNE), complexity (OPCR) and crown relief (RFI) scores decreasing with age. Dental topography procedures applied to maxillary permanent molars of Central African populations with distinct dietary habits (Pygmy foragers and Bantu-speaking agriculturalists) and distinct degrees of dental wear patterns showed DNE and occlusal relief (OR) scores that also decreased with wear, while ambient occlusion (PCV) and OPCR increased with wear. The Pygmy foragers showed higher OPCR and DNE values than the Bantu-speaking agriculturalists. These variables also proved to effectively distinguish between foragers and agriculturalists in the PC analysis. This research has also shown that it is important to pay attention to the different cropping methods used in the quantification of RFI and OR since the different methodological perspectives may cause distinct methodological errors.<br>El desgaste dental es un proceso fisiológico, natural y complejo de pérdida gradual del esmalte que se produce durante la vida de un individuo y que proporciona información sobre los hábitos alimentarios, las técnicas de procesamiento de alimentos y las prácticas culturales. Muchos estudios caracterizaron el desgaste en poblaciones humanas mediante métodos cualitativos dependientes del observador. En cambio, pocos estudios utilizaron métodos objetivos y cuantitativos. Esta tesis pretende evaluar las diferencias morfológicas de los molares en poblaciones humanas modernas, así como el efecto del desgaste en la forma del diente mediante métodos cuantitativos novedosos, como el porcentaje de exposición de dentina (PDE), la morfometría geométrica (MG) en 3D y la topografía dental. El PDE de los primeros molares inferiores de una población de cazadores recolectores de pigmeos Baka de edad conocida mostró una relación significativa entre desgaste y edad, sin dimorfismo sexual en los patrones de desgaste y valores reducidos de PDE del ~ 4% para una población cazadora recolectora dependiente del consumo de Underground Storage Organs (USO), probablemente debido a las particularidades culturales relacionadas con la dieta que influyeron en el desgaste. Los análisis 3D (MG y topografía dental) en primeros y segundos molares superiores e inferiores de la colección de Trocas Internacionais de cráneos de Coímbra, con edad de la muerte conocida, mostraron regresiones significativas entre las variables morfométricas y la edad de la muerte, con una parte de la variación de la forma del diente atribuida a su anatomía (p. ej. patrones de cúspides y surcos) e independiente del desgaste, y otra, a la pérdida de altura de la corona con la edad. El ACP de la MG en 3D aplicada a la prueba de medición repetida mostró un error metodológico intraobservador del <5%. El análisis de la topografía de la muestra portuguesa mostró correlaciones negativas con la edad, con valores de curvatura (DNE), complejidad (OPCR) y relieve de la corona (RFI) que disminuyen con la edad. Los análisis de topografía en molares superiores de poblaciones centroafricanas con dietas distintas (pigmeos cazadores recolectores y agricultores de habla bantú) y distintos grados de desgaste mostraron valores de DNE y relieve oclusal (OR) que disminuían con el desgaste, mientras que la oclusión ambiental (PCV) y OPCR aumentaba. Los cazadores recolectores mostraron además valores de OPCR y DNE más altos que los agricultores. Estas variables fueron efectivas para distinguir entre ambas dietas en el análisis de CP. También se demostró la importancia de prestar atención a los métodos de corte utilizados en la cuantificación de RFI y OR, ya que pueden causar errores metodológicos.
APA, Harvard, Vancouver, ISO, and other styles
16

Miller, Ted H. "Making certain : Thomas Hobbes, geometry, and the educational politics of early modernity /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 1999. http://wwwlib.umi.com/cr/ucsd/fullcit?p9936844.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Ellison, Elizabeth J. "Land Use Affects on Modern Bankfull Hydraulic Geometry in Southwest Ohio and its Implications for Stream Restoration." Miami University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=miami1273024657.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Leisse, Gisela. "Geometrie und Stadtgestalt." Doctoral thesis, Humboldt-Universität zu Berlin, Philosophische Fakultät III, 2010. http://dx.doi.org/10.18452/16122.

Full text
Abstract:
In der Erforschung der Städtebaukunst stehen die bildenden Künste im Vordergrund. Die Frage nach den technischen Künsten wird kaum gestellt, obwohl der Entwurf des Architekten nicht nur von individueller Intuition, sondern im gleichen Maße auch vom technisch Machbaren geprägt ist. Um aber das der Planung frühneuzeitlicher Städte zugrunde liegende Konstruktionsschema und die Planungsintention erkennen zu können, ist es notwendig die Städtebau- mit der Technikgeschichte zu verbinden. Die in den Tratakten zur geometria practica und zur architectura militaris beschriebenen Konstruktions- und Vermessungsmethoden werden städtebaulichen Planungen der Frühen Neuzeit gegenübergestellt. An einzelnen Fallstudien, die vom Ende der mittelalterlichen Stadtplanung bis hin zu barocken Stadterweiterungen reichen, wird untersucht, wie das Planungswerkzeug die Entwurfssprache des Architekten beeinflusste und die Formensprache der Stadt- und Landschaftsplanung nachhaltig veränderte. Der Paradigmenwechsel im Städtebau vollzog sich in Mitteleuropa um die Wende vom 15. zum 16. Jh. mit dem Bau der Erzgebirgsstädte Annaberg und Marienberg. Die in Annaberg noch praktizierte rhythmische und räumliche Grundrissgestaltung wurde in Marienberg zugunsten eines egalisierten Stadtgrundrisses aufgegeben. Überlegungen zur Stadtstruktur und Hygiene führten zu diesem Wandel, die Aufteilung des Grundrisses selber aber wurde durch das verwendete Instrumentarium bestimmt. Im Barock stand den Planern Geometrie als allgemeine Kulturtechnik zur Verfügung, das Denken in geometrischen Formen und Proportionen bestimmte den Entwurfsprozess. Geometrie war nicht mehr nur Planungsmittel, sondern wurde - wie bei der Anlage der Berliner Torplätze zu Beginn des 18. Jh. zu sehen ist - Planungsziel. Die Rekonstruktion der Planungsmaße beweist, dass nicht nur die Namensgebung - Rondell, Oktogon und Quarré – auf die Quadratur des Kreises hinweist, sondern die Proportion der Plätze aus ihr heraus entwickelt wurde.<br>In the research of the art of urban development, the fine arts are mainly taken into account. The question of the technical arts is seldom raised, even though the architect’s design is a work of personal intuition as well as of the technically possible. In order to recognize the construction scheme and the planning intention in the urban planning of Early Modern Times it is necessary to merge the history of urban development with the history of technology. The construction and surveying methods described in the essays of the geometria practica and the architectura militaris are compared to the urban planning of the Early Modern Times. In case studies reaching from urban planning at the close of the Middle Ages to Baroque city expansion it is shown how the planning tools influenced the design language of the architect and the form language of urban development. The paradigm shift in Middle European urban planning took place at the end of the 15th century with the construction of Annaberg and Marienberg in the Ore Mountains. The rhythmic and spatial floor plan design still used in Annaberg was abandoned for a leveled out town plan in Marienberg. Deliberations of city structure and hygiene lead to this change. The design of the layout itself, however, was dictated by the implemented tool. In the Baroque period, geometry was available to the planers as general cultural knowledge and technology: the use of geometrical forms and proportions determined the design process. Geometry was not only planning method, but became planning intention – as can be seen by the Berlin Gate Plazas built in the beginning of the 18th Century. Not only do the names given - Rondell, Oktogon and Quarré – refer to the squaring of the circle, but the reconstruction of the design measurements proves the connection. Only the development of practical geometry enabled the variable form language of Baroque city construction.
APA, Harvard, Vancouver, ISO, and other styles
19

Teixeira, Rafael Montoito. "Euclid and his modern rivals (1879), Lewis Carrol : tradução e crítica /." Bauru, 2013. http://hdl.handle.net/11449/102058.

Full text
Abstract:
Orientador: Antonio Vicente Marafiotti Garnica<br>Banca: Heloisa da Silva<br>Banca: Ivete Maria Baraldi<br>Banca: Marcelo Carbone<br>Banca: Maria Laura Magalhães Gomes<br>Resumo: Este trabalho apresenta uma tradução de Euclid and his modern rivals, de Lewis Carrol, seguida de dois ensaios analíticos desta obra. O livro de Carrol - inédito em língua portuguesa - defende, na forma de uma peça teatral, Os Elementos de Euclides como o melhor livro-texto para o ensino de Matemática numa época em que o sistema de educação da Inglaterra passava por uma revisão que incluiu a possibilidade de substituir o texto de Euclides por outro manual, mais "moderno", mais "prático" e que representasse as trasnformações que representasse as transformações que caracterizam o final dos século XIX. Nos ensais, dentre outros aspectos, tematiza-se a atividade de traduzir, mobilizando teóricos da tradução e elementos gerais da obra sde Lewis Carrol. Considerando necessário compreender como o livro situa-se na história da ideias científicas - isto é, tornando-o como fonte historiográfica -, procedendo a uma investigação sobre o momento - o tempo e o espaço - em que foi escrito, do que resultaram compreensões que vinculam a elaboração do texto ao cenário da época vitoriana e às vivências pessoais do seu autor. Os dois ensaios, com a íntegra da tradução e com as notas de rodapé a ela incorporadas, compõem um esforço hermenêutico para compreender o Euclides e Seus Rivais Modernos e, consequentemente, apresentá-lo ao leitor<br>Abstract: This work begins with a translation of Lewis Carroll's - Euclid and His Modern Rivals - followed by two texts which intend to be an initial hermeneutical analysis of it. This book - of which had not yet a translation to Portuguese -, was written as a theoretical play and claims that there is no better textbook than the Elements of Euclid for teaching Mathematics. Carrol does his defense of Euclid in a period in which the Enghish educational system is going through and extended revision, a time when the reform parameters consider the possibility of changing the books of Euclid for another manual, so to speak, more "modern", more "practical" and more representative of the transformations that characterize the end of the 19th century. In our two essays, among other aspects, we study the activity of translating, mobilizing translation theorists and some general elements of Lewis Carrol's works in Math and Literature. Considering necessary to understand how the book takes part in the history of the scientific ideas - or, in other words, trying to undestand it as a historical source -, an investigation was made about the moment in which it was written, its time and its space. From this approach it was possible to elaborate a text studying the scenario of the Victorian period, revealing aspects of what we think to be some personal experiments of the author. Both texts - which must be considered in the light of the translation to the Portuguese language - are presented as an introduction of Euclid and His Modern Rivals, an effort to understand it and to present it to Portuguese speakers<br>Doutor
APA, Harvard, Vancouver, ISO, and other styles
20

Kolatorowicz, Adam. "Patterns of Morphological Integration in Modern Human Crania: Evaluating Hypotheses of Modularity using Geometric Morphometrics." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429881785.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Bergomi, M. G. "Dynamical and topological tools for (modern) music analysis." Doctoral thesis, Università degli Studi di Milano, 2015. http://hdl.handle.net/2434/339068.

Full text
Abstract:
Is it possible to represent the horizontal motions of the melodic strands of a contrapuntal composition, or the main ideas of a jazz standard as mathematical entities? In this work, we suggest a collection of novel models for the representation of music that are endowed with two main features. First, they originate from a topological and geometrical inspiration; second, their low dimensionality allows to build simple and informative visualisations. Here, we tackle the problem of music representation following three non-orthogonal directions. We suggest a formalisation of the concept of voice leading (the assignment of an instrument to each voice in a sequence of chords) suggesting a horizontal viewpoint on music, constituted by the simultaneous motions of superposed melodies. This formalisation naturally leads to the interpretation of counterpoint as a multivariate time series of partial permutation matrices, whose observations are characterised by a degree of complexity. After providing both a static and a dynamic representation of counterpoint, voice leadings are reinterpreted as a special class of partial singular braids (paths in the Euclidean space), and their main features are visualised as geometric configurations of collections of 3-dimensional strands. Thereafter, we neglect this time-related information, in order to reduce the problem to the study of vertical musical entities. The model we propose is derived from a topological interpretation of the Tonnetz (a graph commonly used in computational musicology) and the deformation of its vertices induced by a harmonic and a consonance-oriented function, respectively. The 3-dimensional shapes derived from these deformations are classified using the formalism of persistent homology. This powerful topological technique allows to compute a fingerprint of a shape, that reflects its persistent geometrical and topological properties. Furthermore, it is possible to compute a distance between these fingerprints and hence study their hierarchical organisation. This particular feature allows us to tackle the problem of automatic classification of music in an innovative way. Thus, this novel representation of music is evaluated on a collection of heterogenous musical datasets. Finally, a combination of the two aforementioned approaches is proposed. A model at the crossroad between the signal and symbolic analysis of music uses multiple sequences alignment to provide an encompassing, novel viewpoint on the musical inspiration transfer among compositions belonging to different artists, genres and time. To conclude, we shall represent music as a time series of topological fingerprints, whose metric nature allows to compare pairs of time-varying shapes in both topological and in musical terms. In particular the dissimilarity scores computed by aligning such sequences shall be applied both to the analysis and classification of music.
APA, Harvard, Vancouver, ISO, and other styles
22

Ferreira, Ana Célia da Costa. "Propostas pedagógicas de geometria no movimento paranaense de matemática moderna / Ana Célia da Costa Ferreira ; orientação Neuza Bertoni Pinto." reponame:Biblioteca Digital de Teses e Dissertações da PUC_PR, 2006. http://www.biblioteca.pucpr.br/tede/tde_busca/arquivo.php?codArquivo=527.

Full text
Abstract:
Dissertação (mestrado) - Pontifícia Universidade Católica do Paraná, Curitiba, 2006<br>Inclui bibliografia<br>O estudo, de natureza histórica, tem como objeto a proposta paranaense de geometria no contexto do Movimento de Matemática Moderna (MMM) desencadeado em nível internacional nas décadas de 60 e 70. A fundamentação teórica apoiou-se principalmente em biblio
APA, Harvard, Vancouver, ISO, and other styles
23

Segura, Roberta Costa [UNESP]. "Casa-caixa: Celestina e sua geometria instável." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/152189.

Full text
Abstract:
Submitted by ROBERTA COSTA SEGURA null (segura.roberta@gmail.com) on 2017-11-28T23:37:00Z No. of bitstreams: 1 Mestrado Roberta Segura.pdf: 26981106 bytes, checksum: 5b4738b02941beb1cde1bb6dc90999ba (MD5)<br>Approved for entry into archive by Mariana Borges Gasparino null (mariana.borges@ia.unesp.br) on 2017-11-29T19:16:02Z (GMT) No. of bitstreams: 1 segura_rc_me_ia.pdf: 26981106 bytes, checksum: 5b4738b02941beb1cde1bb6dc90999ba (MD5)<br>Made available in DSpace on 2017-11-29T19:16:02Z (GMT). No. of bitstreams: 1 segura_rc_me_ia.pdf: 26981106 bytes, checksum: 5b4738b02941beb1cde1bb6dc90999ba (MD5) Previous issue date: 2017-10-17<br>A dissertação tem como objetivo traçar um paralelo entre a obra da artista e a casa de uma moradora em situação de rua, que sob o seu olhar, possuía um interesse estético, assim como em uma escultura, instalação ou objeto tridimensional, com forma, volume e relevo diferenciados. Para criar maneiras de aproximar essa casa a processos de representações artísticas, será proposto uma comparação entre as montagens da moradora e aspectos formais presentes no construtivismo geométrico brasileiro (1950/70), nas artes e arquitetura, já que se pode ver, em ambos os casos, uma síntese organizacional por meio da geometria, mesmo que em propostas diferentes. A dissertação busca também discutir a influência da paisagem urbana na obra de artistas contemporâneos e da autora, aqui comentados nesse estudo.<br>The dissertation aims to draw a parallel between the work of the artist and the house of a homeless woman who, under her eyes, had an aesthetic interest, as well as a sculpture, installation or a three-dimensional object, regarding shape, volume and other forms. In order to create ways to bring this house closer to the processes of artistic representations, a comparison will be made between the dweller's montages and the formal aspects presented in Brazilian geometric constructivism (1950/70), in the arts and architecture, since some elements can be seen in both cases - an organizational synthesis through geometry, even in different proposals. The dissertation also seeks to discuss the influence of the urban landscape on the work of contemporary artists and the author, commented here in this study.
APA, Harvard, Vancouver, ISO, and other styles
24

Pia, Giorgio <1980&gt. "Aspetti innovativi per la valutazione e la misura della porosità nei materiali dell'edilizia antica e moderna. La geometria frattale della porosità." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1241/1/Tesi_Dottorato.pdf.

Full text
Abstract:
New concepts on porosity appraisal in ancient and modern construction materials. The role of Fractal Geometry on porosity characterization and transport phenomena. This work studied the potential of Fractal Geometry to the characterization of porous materials. Besides the descriptive aspects of the pore size distribution, the fractal dimensions have led to the development of rational relations for the prediction of permeability coefficients to fluid and heat transfer. The research considered natural materials used in historical buildings (rock and earth) as well as currently employed materials as hydraulic cement and technologically advanced materials such as silicon carbide or YSZ ceramics. The experimental results of porosity derived from the techniques of mercury intrusion and from the image analysis. Data elaboration was carried out according to established procedures of Fractal Geometry. It was found that certain classes of materials are clearly fractal and respond to simple patterns such as Sierpinski and Menger models. In several cases, however, the fractal character is not recognised because the microstructure of the material is based on different phases at different dimensional scales, and in consequence the “fractal dimensions” calculated from porosimetric data do not come within the standard range (less than 3). Using different type and numbers of fractal units is possible, however, to obtain “virtual” microstructures that have the fraction of voids and pore size distribution equivalent with the experimental ones for almost any material. Thus it was possible to take the expressions for the permeability and the thermal conduction which does not require empirical “constants”, these expressions have also provided values that are generally in agreement with the experimental available data. More problematic has been the fractal discussion of the geometry of the rupture of the material subjected to mechanical stress both external and internal applied. The results achieved on these issues are qualitative and prone to future studies. Keywords: Materials, Microstructure, Porosity, Fractal Geometry, Permeability, Thermal conduction, Mechanical strength.
APA, Harvard, Vancouver, ISO, and other styles
25

Pia, Giorgio <1980&gt. "Aspetti innovativi per la valutazione e la misura della porosità nei materiali dell'edilizia antica e moderna. La geometria frattale della porosità." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1241/.

Full text
Abstract:
New concepts on porosity appraisal in ancient and modern construction materials. The role of Fractal Geometry on porosity characterization and transport phenomena. This work studied the potential of Fractal Geometry to the characterization of porous materials. Besides the descriptive aspects of the pore size distribution, the fractal dimensions have led to the development of rational relations for the prediction of permeability coefficients to fluid and heat transfer. The research considered natural materials used in historical buildings (rock and earth) as well as currently employed materials as hydraulic cement and technologically advanced materials such as silicon carbide or YSZ ceramics. The experimental results of porosity derived from the techniques of mercury intrusion and from the image analysis. Data elaboration was carried out according to established procedures of Fractal Geometry. It was found that certain classes of materials are clearly fractal and respond to simple patterns such as Sierpinski and Menger models. In several cases, however, the fractal character is not recognised because the microstructure of the material is based on different phases at different dimensional scales, and in consequence the “fractal dimensions” calculated from porosimetric data do not come within the standard range (less than 3). Using different type and numbers of fractal units is possible, however, to obtain “virtual” microstructures that have the fraction of voids and pore size distribution equivalent with the experimental ones for almost any material. Thus it was possible to take the expressions for the permeability and the thermal conduction which does not require empirical “constants”, these expressions have also provided values that are generally in agreement with the experimental available data. More problematic has been the fractal discussion of the geometry of the rupture of the material subjected to mechanical stress both external and internal applied. The results achieved on these issues are qualitative and prone to future studies. Keywords: Materials, Microstructure, Porosity, Fractal Geometry, Permeability, Thermal conduction, Mechanical strength.
APA, Harvard, Vancouver, ISO, and other styles
26

Wiweko, Agung. "Sedimentary facies and depositional geometry of distributary mouth bars in Tunu Field Miocene Kutei Basin and comparison with modern Mahakalm Delta." Thesis, Queensland University of Technology, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
27

Freire, Inês Angélica Andrade. "Ensino de Matemática: iniciativas inovadoras no Centro de Ensino de Ciências da Bahia (1965-1969)." Faculdade de Filosofia e Ciências Humanas, 2009. http://repositorio.ufba.br/ri/handle/ri/16023.

Full text
Abstract:
Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-09-10T12:11:17Z No. of bitstreams: 1 Inês Angélica Andrade Freire.pdf: 1075564 bytes, checksum: 73dc9941930c6bc47614091155a29d7c (MD5)<br>Approved for entry into archive by Fatima Cleômenis Botelho Maria (botelho@ufba.br) on 2014-09-10T14:09:04Z (GMT) No. of bitstreams: 1 Inês Angélica Andrade Freire.pdf: 1075564 bytes, checksum: 73dc9941930c6bc47614091155a29d7c (MD5)<br>Made available in DSpace on 2014-09-10T14:09:05Z (GMT). No. of bitstreams: 1 Inês Angélica Andrade Freire.pdf: 1075564 bytes, checksum: 73dc9941930c6bc47614091155a29d7c (MD5)<br>O Centro de Ensino de Ciências da Bahia (CECIBA) foi um dos seis centros implantados no Brasil, na década de 60 do séc. XX, pelo Ministério da Educação em parceria com Universidades e Secretarias de Educação em diferentes regiões do país com o objetivo de uma renovação no ensino secundário de ciências. Com o incentivo de recursos federais, professores universitários de diversas áreas de conhecimento, tais como, Física, Química, Biologia e Matemática, produziram, implantaram e desenvolveram projetos de modernização do ensino secundário, mediante, principalmente, mas não exclusivamente, a atualização de professores do ensino secundário. Este trabalho teve como objetivo analisar historicamente as atividades desenvolvidas pela Secção Científica de Matemática do CECIBA no período de sua existência, isto é, entre os anos de 1965 e 1969, com a meta de introduzir a matemática moderna nas escolas secundárias da Bahia. Estes projetos foram coordenados por Omar Catunda, diretor do Instituto de Matemática e Física da Universidade da Bahia e Martha Dantas, professora da disciplina de Didática Especial de Matemática do curso de Matemática da Faculdade de Filosofia da Universidade da Bahia, dois líderes importantes do Movimento da Matemática Moderna no Brasil e na América Latina. Um dos aspectos mais importante destes projetos foi o ensino da geometria por meio das transformações geométricas, realizado com o auxílio de manuais produzidos localmente, testados em classes experimentais regidas por professores que estavam sendo atualizados em serviço. Para o desenvolvimento do trabalho, a base documental foi selecionada, a partir do Arquivo do CECIBA, de forma a propiciar o diálogo com as questões norteadoras do estudo: estruturação do centro, formação dos professores, produção de idéias e práticas matemáticas, relações – nacionais e internacionais - com o Movimento da Matemática Moderna.
APA, Harvard, Vancouver, ISO, and other styles
28

Tutsch, Joram F. [Verfasser], Rainer [Akademischer Betreuer] Barthel, Kai-Uwe [Gutachter] Bletzinger, Ralph [Gutachter] Egermann, and Rainer [Gutachter] Barthel. "Weitgespannte Lamellendächer der frühen Moderne : Konstruktionsgeschichte, Geometrie und Tragverhalten / Joram F. Tutsch ; Gutachter: Kai-Uwe Bletzinger, Ralph Egermann, Rainer Barthel ; Betreuer: Rainer Barthel." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1214368689/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Hanot, Pauline. "Morphological diversity of modern and past domestic equids : complete skeletons as a marker of function and cultural practices." Thesis, Paris, Muséum national d'histoire naturelle, 2018. http://www.theses.fr/2018MNHN0006.

Full text
Abstract:
Depuis leur domestication, les équidés sont étroitement associés aux activités humaines et ont, au fil des siècles, été façonnés au gré d’exigences morphologiques, esthétiques, d’allure ou de performance. Cette sélection artificielle a fortement impacté leurs traits phénotypiques et fonctionnels, produisant le large panel des races actuelles. Les sources historiques ont abondamment décrit l’importance des équidés et la diversité de leurs usages dans les sociétés passées. Ceci interroge donc sur la potentielle existence de types morphologiques spécialisés à des périodes antérieures à l’émergence des races. Dans ce contexte, les os présentent un intérêt particulier en tant que reflet des caractéristiques morphologiques et fonctionnelles des animaux du passé. En outre, les équidés étant fréquemment retrouvés sous la forme de squelettes complets en contexte archéologique,leurs restes offrent la possibilité d’étudier l’intégralité de la morphologie squelettique et notamment les interactions entre les os. Pourtant, les restes osseux d’équidés restent relativement peu exploités, probablement en raison des limites inhérentes aux méthodes d’étude actuelles. L’objectif de ce travail est de mieux comprendre la diversité phénotypique et fonctionnelle des équidés domestiques par des approches en morphométriegéométrique. La question de leur identification spécifique est tout d’abord abordée via la recherche de critères discriminants, qualitatifs et quantitatifs, applicables à du matériel archéologique. Les patterns de covariation entre les os sont ensuite explorés afin d’aborder des questions fonctionnelles. Les résultats révèlent une forte intégration morphologique entre les os des membres chez les équidés domestiques et mettent en évidence des différences entre les races selon un axe de covariation principalement porté par des interactions fonctionnelles. Ceci tend à montrer que la sélection artificielle, considérée comme le principal acteur de la diversification morphologique chez le cheval domestique, n’influence pas seulement le phénotype mais aussi les facteurs biologiques qui le sous-tendent. Enfin, une première application à des spécimens archéologiques permet dediscuter l’impact de potentielles formes de sélection artificielle et de standardisation morphologique sur des chevaux anciens. Les résultats démontrent l’intérêt d’étudier non seulement les variations de forme des os, mais aussi leurs covariations, afin d’enrichir nos connaissances concernant les traits morphologiques et fonctionnels des animaux passés, ainsi que les pratiques d’élevage qui y sont associées. L’étude des covariations contribueégalement à accroitre notre compréhension des processus micro-évolutifs, tels que la sélection artificielle, et à travers cela, permet de mieux documenter la manière dont la diversité phénotypique est produite<br>Equids and humans share a long history of interaction from the first domestication to the standardization of modern breeds. In order to suit human activities, they have been molded through selection for conformation, harmony, gaits, or performance. This artificial selection is known to have largely impacted morphological and functional traits, producing the large range of current breeds. Historical sources extensively described the widepanel of equid usage in different human civilizations, raising the issue of the potential existence of specialized morphological types in the past, prior to the emergence of modern breeds. In this respect, bones prove to be of particular interest, as an image of the phenotypic and functional characteristics of past animals. Moreover, horses being often found as complete skeletons in archaeological contexts, their remains allow for the study of the complete skeletal morphology, especially concerning the interactions between bones. However, equid bone remains are largely under-explored, probably due to the recurrent limitations inherent to existing study methods. The objective of this work is to describe and understand the phenotypic and functional diversity of domestic equids, using geometric morphometrics approaches. Identification issues are firstly addressed through the research of qualitative and quantitative discrimination criteria, applicable to archaeological samples. Next, morphological and functional questions are addressed, especially investigating bone shape covariation. The obtained results reveal strong morphological integration within equid limb bones and evidenced breed specific differences along a covariation axis largely produced by functional interactions between bones. They show thatartificial selection, regarded as responsible of most of the modern diversification of horse breeds, not only targets the phenotype but also impacts the biological factors which underlie it. Finally, a first application to archaeological skeletons allows to question the influence of potential artificial selection and morphological standardization on past horses. The results demonstrate the interest of not only exploring bone shape variation,but also covariation, to increase our knowledge about the morphological and functional traits of past equids and about the related breeding practices. The study of morphological integration may also contribute to enhance our understanding of micro-evolutionary processes, such as artificial selection on domestic taxa, and through that, gain insights into how phenotypic diversity is produced
APA, Harvard, Vancouver, ISO, and other styles
30

Decaup, Pierre-Hadrien. "Covariation entre l'environnement de charge et la distribution de l'os cortical mandibulaire chez les humains modernes." Electronic Thesis or Diss., Bordeaux, 2025. http://www.theses.fr/2025BORD0006.

Full text
Abstract:
En constituant l’élément mobile de l’appareil manducateur, la mandibule humaine joue un rôle clef dans les fonctions de ventilation, déglutition, mastication, préhension et phonation et supporte ainsi des régimes de charges complexes, s’exerçant à des intensités et fréquences variables. Bien que les interactions morphofonctionnelles liant cet environnement de charge et la forme externe de la mandibule humaine soient en partie documentées, l’approche morphofonctionnelle de l’anatomie osseuse mandibulaire interne demeure imprécise. Certains auteurs, tels que Demes et al. (1984) ont postulé que cette relation morphofonctionnelle entre l’environnement de charge et la distribution de l’os cortical mandibulaire pourraient être fondée sur l’existence d’une asymétrie faciolinguale. Dans ce contexte, le présent travail vise à interroger le paradigme « mécaniste » de Demes et al. (1984) à l’aune de nouvelles approches méthodologiques et ainsi répondre à la problématique suivante : « Est-ce que la distribution d’os cortical mandibulaire covarie avec l’environnement de charge chez les humains modernes ? ». À travers une revue systématique de la littérature (Decaup et al., 2023), une approche morphométrique comparative au sein de populations du passé (Decaup et al., 2024a) et une modélisation de cette problématique par la méthode des éléments finis (Decaup et al., 2024b, en révision) nous avons montré que la distribution de l’os cortical mandibulaire covarie, sous certaines conditions, avec la distribution des déformations dans le cadre d’un environnement de charge masticatoire unilatéral molaire. Cette covariation produit notamment des effets morphologiques plus marqués dans les groupes humains présentant un niveau de charge mandibulaire élevé. Cette covariation suit enfin un gradient antéropostérieur en faveur d’une relation moins marquée dans les régions antérieures symphysaires et plus marquée dans les régions postérieures du corpus mandibulaire. Le développement d’une approche couplant l’analyse morphométrique comparative et l’analyse par éléments finis en modélisation globale – locale permettrait de mieux interpréter l’impact biomécanique de la diversité biologique de distribution de l’os cortical mandibulaire au sein des populations humaines dans le cadre de recherches futures<br>As the moving element of the manducatory system, the human mandible is central to the functions of ventilation, swallowing, mastication, prehension and phonation, and therefore must withstand complex loads of varying intensity and frequency. Although the morpho-functional interactions between this loading environment and the external human mandibular shape have been partially documented, the morpho-functional approach to internal mandibular bone anatomy remains unclear. Some authors, such as Demes et al. (1984) have postulated that this morpho-functional relationship could be based on a faciolingual asymmetry. In this context, the aim of the present work is to question the ‘mechanistic’ paradigm of Demes et al. (1984) considering new methodological approaches and thus answer the following question: ‘Does the distribution of mandibular cortical bone covary with the loading environment in modern humans?’. Through a systematic review of the literature (Decaup et al., 2023), a comparative morphometric approach within past populations (Decaup et al., 2024a) and modelling of this problem using the finite element method (Decaup et al., 2024b, under review) we found that the distribution of mandibular cortical bone covaries, under certain conditions, with the distribution of strain in unilateral molar masticatory loading conditions. Morphological effects of this covariation are particularly marked in human groups with a high level of mandibular load. Finally, this covariation follows an anteroposterior gradient towards a weaker relationship in the symphyseal anterior regions and a stronger relationship in the posterior regions of the mandibular corpus. The development of an approach combining comparative morphometric analysis and finite element analysis in global-local modelling could provide a better interpretation of the biomechanical impact of the biological diversity of mandibular cortical bone distribution within human populations in future research
APA, Harvard, Vancouver, ISO, and other styles
31

Kadioglu, Dilek. "Salih Zeki&#039." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615620/index.pdf.

Full text
Abstract:
This thesis examines Dar&uuml<br>lf&uuml<br>nun Konferanslari which consists of a series of lectures that were delivered by Salih Zeki in 1914 &ndash<br>1915 in Ottoman State. These lectures were on geometry, its history and especially on the discovery of non-Euclidean geometries. And the purpose of this thesis is to propose the sufficiency and the legitimacy of these lectures as an account on the history of geometry. As a preliminary to analyzing Salih Zeki&rsquo<br>s lectures, different views on geometry&rsquo<br>s history and progress will be analyzed and compared. The results of this comparison will be the guide by means of which Dar&uuml<br>lf&uuml<br>nun Konferanslari will be examined. This thesis also serves as a source that makes Salih Zeki&rsquo<br>s ideas accessible, by presenting an English summary of his lectures which were originally published in Ottoman Turkish.
APA, Harvard, Vancouver, ISO, and other styles
32

Bacchetti, Andrea. "Progetto e adeguamento della viabilità nella zona compresa tra Via Divisione Acqui e la Tangenziale Nord Pasternak del Comune di Modena." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

Find full text
Abstract:
L'elaborato consiste nel progettare e adeguare la viabilità nella zona compresa tra Via Divisione Acqui e la Tangenziale Nord Pasternak del Comune di Modena, prevedendo la realizzazione di sei rotatorie, un sottopasso ferroviario e la conseguente definizione plano-altimetrica dei tratti stradali destinati ai vari collegamenti. Al termine, si è eseguito il computo metrico estimativo dell'intero intervento.
APA, Harvard, Vancouver, ISO, and other styles
33

Chiaravalli, Iacopo. "La mente creativa. Matematica, immaginazione e pensiero astratto in Descartes." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3421852.

Full text
Abstract:
The aim of the present work is a new interpretation of modern science based on the concept of construction. In the first part of the work I poin out the main features of modern science as a subjective challenge. In the second I show the social and political context of cartesian science. In the third part I show in which terms construction is the main category of modern mathematics and therefore of modern sciences. In the end I propose a shor comparison between Aristotle's notion of intellect and the cartesian one, pointing out the rolle of imagination as main faculty of modern science.
APA, Harvard, Vancouver, ISO, and other styles
34

Duval, Colin. "Evolution et diversité de la forme du cochon entre l'âge du Fer et la période moderne en Gaule et en France. Régionalisme, acquisitions zootechniques et implications historiques." Thesis, Tours, 2015. http://www.theses.fr/2015TOUR2004.

Full text
Abstract:
Cette étude archéozoologique porte sur les variations morphologiques de différents éléments du squelette porcin (Sus scrofa domesticus) et s’appuie sur deux présupposés majeurs : (1) les changements morphologiques de l’animal sont le reflet des évolutions du contexte socio-économique ; (2) il existe une grande diversité des formes porcines, conditionnée par différents facteurs d’influence (environnement, stratégies agropastorales, habitudes culturelles, etc.). L’analyse menée, sur la base de tels postulats, tend à mesurer puis décrire ces changements et cette diversité pour tenter d’en comprendre l’origine et les mécanismes de progression. Pour cela il a fallu observer les restes dentaires et osseux de plus de 600 sites archéologiques, situés sur les territoires gaulois, français et italien, datés de La Tène moyenne à la période moderne, à l’aide de différentes méthodes de morphométrie géométrique et traditionnelle. De cette manière, il a été possible de constituer un solide référentiel ostéométrique pour le porc et d’atteindre ici une meilleure compréhension des pratiques d’élevage aux périodes gauloise, romaine et médiévale<br>This archaeozoological study investigates morphological variations in different skeletal parts of the pig (Sus scrofa domesticus) according to two main assumptions: (1) the morphological changes of the animal reflect socio-economic changes; (2) there is a great diversity of pig’s forms, driven by different factors (environment, agropastoral strategies, cultural habits, etc.). Our analysis, based on these assumptions, tends to quantify and describe these changes and this diversification to try to understand their origin and mechanisms. For this we have observed the dental and skeletal remains of more than 600 archaeological sites, located on the Gallic, French and Italian territories, dated from La Tène moyenne to the modern period, using different methods of geometric and traditional morphometrics. In this way, we were able to build a strong osteometric framework for pigs and get new clues to a better understanding of farming practices for Gallic, Roman and medieval periods
APA, Harvard, Vancouver, ISO, and other styles
35

Le, Luyer Mona. "Évolution dentaire dans les populations humaines de la fin du Pléistocène et du début de l’Holocène (19000 – 5500 cal. BP) : une approche intégrée des structures externe et interne des couronnes pour le Bassin aquitain et ses marges." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0003/document.

Full text
Abstract:
À partir de la fin du Pléistocène, une réduction de la taille des dents humaines et une simplification morphologique ont été observées et débattues en lien avec des changements culturels et environnementaux. Suite à de nouvelles découvertes et à la révision des contextes archéologiques de certains gisements, une réévaluation de la nature des variations de plus de 1900 couronnes dentaires est proposée pour 176 individus de la fin du Paléolithique, du Mésolithique et du début du Néolithique provenant du Bassin aquitain et de ses marges. Particulièrement, les variations de la structure interne (épaisseur de l’émail, proportions des tissus dentaires, morphologie de la jonction émail-dentine) ont été évaluées de manière non invasive grâce aux méthodes d’imagerie 3D (microtomographie) et de morphométrie géométrique afin de caractériser et d’interpréter l’évolution des couronnes dentaires selon une approche intégrée. Les résultats des analyses morphométriques montrent une discontinuité entre les populations de la fin du Pléistocène et celles du début de l’Holocène. Une réduction des dimensions externes, des épaisseurs de l’émail et des proportions des tissus est mesurée entre la fin du Paléolithique et le Mésolithique, alors que des différences majeures dans les types d’usure et la distribution de l’émail sont observées entre le Mésolithique et le Néolithique. Ces données suggèrent que les modifications induites par les changements environnementaux de l’Holocène ont eu un impact plus important sur la réduction dentaire dans les populations humaines et que les changements culturels néolithiques ont surtout affecté la distribution de l’émail. Enfin, une corrélation entre le type d’usure occlusale et la distribution de l’épaisseur de l’émail a été mise en évidence et associée à des changements de régime alimentaire. En particulier, l’épaisseur de l’émail peut évoluer rapidement comme une réponse sélective aux changements fonctionnels dans la biomécanique de la mastication<br>Since the Late Pleistocene, a reduction in size and a morphological simplification of human teeth have been observed and arguably linked to cultural and environmental changes. Following new discoveries along with the revision of key archaeological contexts, a re-assessment of the nature of crown variations on more than 1900 teeth is proposed for 176 Late Paleolithic, Mesolithic and Early Neolithic individuals from the Aquitaine Basin and its margins. In particular, a non-invasive assessment of internal tooth structure variability (enamel thickness, dental tissue proportions, enamel-dentine junction morphology) has been performed using 3D imaging methods (microtomography) and geometric morphometrics in order to characterize and interpret dental evolution from a whole crown perspective. Results from the morphometric analyses show a discontinuity between Late Pleistocene and Early Holocene populations. External dimensions, enamel thicknesses and tissue proportions are reduced in Mesolithic individuals compared to those of the Late Paleolithic, while major differences are observed in occlusal wear patterns and enamel distribution between Mesolithic and Early Neolithic samples. These data suggest that environmentally-driven modifications during the Early Holocene had a major impact on dental reduction in human populations and that Neolithic cultural changes had mostly affected enamel distribution. Finally, a correlation between occlusal wear pattern and enamel thickness distribution is observed and associated with dietary changes. In particular, enamel thickness may have rapidly evolved as a selective response to functional changes in masticatory biomechanics
APA, Harvard, Vancouver, ISO, and other styles
36

Samsel, Mathilde. "Microévolution et bioarchéologie des groupes humains de la fin du Pléistocène et du début de l'Holocène en Europe occidentale : apports de l'anthropologie biologique aux connaissances sur le Paléolithique final et le Mésolithique." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0072/document.

Full text
Abstract:
La fin du Pléistocène et le début de l’Holocène sont marqués par des bouleversements environnementaux d’une ampleur et d’une intensité exceptionnelles en Europe de l’Ouest. Ces quelque huit millénaires ont été scindés en périodes chronoculturelles principalement à partir de critères typotechnologiques de l’industrie lithique, correspondant au Paléolithique final, et au premier et au second Mésolithique. L’identité biologique des groupes humains de cette période n’avait jusqu’alors jamais été étudiée de façon spécifique et la réalité anthropologique de ces partitions pose question. À partir d’un corpus réactualisé de 70 sites couvrant les territoires actuels de la France, de l’Allemagne, de la Belgique, du Luxembourg, de la Suisse, de l’Italie, de l’Espagne et du Portugal, ce sont 617 spécimens pour les restes osseux et 251 pour les restes dentaires qui ont été analysés. Des caractéristiques squelettiques ont été enregistrées et analysées selon un protocole unique : proportions squelettiques comme la stature, l’indice brachial et l’indice crural, morphométrie crânienne et mandibulaire, analyse par morphométrie géométrique de la conformation du neurocrâne et variations anatomiques non métriques crâniennes et dentaires. L’ensemble des données recueillies a fait l’objet de traitements statistiques adaptés, descriptifs, multivariés et exploratoires. Parmi les résultats obtenus, l’analyse métrique et morphologique de la mandibule révèle des changements microévolutifs de la morphologie mandibulaire en lien avec l’intensification de l’élargissement du spectre des ressources consommées au cours du Mésolithique. Un fonctionnement différent des groupes est proposé entre ceux établis sur les zones côtières et les continentaux. Les groupes côtiers seraient organisés selon un système plutôt fermé, traduit par la structuration régionale des données anthropobiologiques, alors que les groupes continentaux, bien qu’ayant un ancrage local, possèderaient des réseaux d’échanges plus larges et/ou plus réguliers. Enfin, la permanence des groupes humains du Paléolithique final au Mésolithique est avancée, ainsi qu’au sein des zones côtières durant tout le Mésolithique, alors qu’une discontinuité populationnelle entre premier et second Mésolithique est mise en évidence dans l’aire continentale. L’hypothèse d’une arrivée de nouveaux groupes depuis les régions situées plus à l’est, poussés par la progression néolithique en Europe centrale à partir du VIIème millénaire cal BC est avancée, rejoignant un des scenarii proposés à partir de l’analyse de l’ADN ancien<br>Environmental changes of exceptional magnitude and intensity occurred during the Late Pleistocene and the Early Holocene in Western Europe. These- some eight millennia- have been divided into chronocultural periods based on typotechnological lithic industries, corresponding to the Late Palaeolithic and the Early and Late Mesolithic. The biological identity of the human groups from this lengthy period of time has never previously been studied in a systematic way, and the anthropological meaning of these divisions remains unclear. In order to fill this gap in knowledge, this thesis presents the results of analyses of an up-to-date sample of 617 skeletal specimens and 251 dental remains covering 70 sites from France, Germany, Belgium, Luxembourg, Switzerland, Italy, Spain and Portugal. Skeletal characteristics, including skeletal proportions- stature, brachial and crural indices -, cranial and mandibular morphometrics, geometric morphometric analysis of the neurocranium, and non-metric skeletal and dental traits were recorded and analysed using a single protocol. All data collected were subjected to suitable descriptive, multivariate and exploratory statistical treatments. Among the results obtained, the metric and morphological analysis of the mandible reveals micro-evolutionary morphological changes related to the intensified exploitation of a broader spectrum of food resources during the Mesolithic. Human groups in coastal zones differ from those located further inland. Coastal groups evince a rather closed system, reflected by a regional structure of bioanthropological data, whereas inland groups, while locally based, are characterized by broader and/or more regular networks of population interaction. Finally, there appears to be continuity between human groups from the Late Palaeolithic to the Early Mesolithic, as well as throughout the Mesolithic in coastal areas, while population discontinuity between the Early and Later Mesolithic is highlighted in the continental area. The arrival of new groups from areas further east, driven by Neolithic population advances through Central Europe from the 7th millennium BC cal is hypothesised, similar to one of the scenarios proposed from the analysis of aDNA
APA, Harvard, Vancouver, ISO, and other styles
37

Bartošová, Eliška. "Moderní výuka prostorové geometrie." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-321406.

Full text
Abstract:
This work is a collection of solved problems in descriptive geometry, supplemented by elementary theory needed for their solution. The theory includes definitions and elementary properties of polygons and their constructions. Theory about solids, mostly prisms and pyramids, is also included. The second chapter introduces theory of projection, including definitions of projection methods (Monge, center, etc.) and corresponding terms. The second part contains a collection of problems, where each problem is solved in four projection methods (there are problems of construction of a point, line, plane, prism and pyramid). For each problem there is an animation for Lisa Viewer program attached, which makes an integral part of the work. These animations allow to look at figures of the problems interactively and even in three dimensions. There is also a PDF document with problem assignment and solution for each problem, suitable for print. Powered by TCPDF (www.tcpdf.org)
APA, Harvard, Vancouver, ISO, and other styles
38

Slávik, Alexander. "Třídy modulů inspirované moderní algebraickou geometrií." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-347806.

Full text
Abstract:
In the setting of Noetherian or Dedekind domains, we investigate the properties of very flat and contraadjusted modules. These are the modules from the respective classes in the cotorsion pair (VF, CA) generated by the set of all modules of the form R[s−1 ]. Furthermore, we introduce the concept of locally very flat modules and pursue the analogy of their relation to very flat modules and the relation between projective and flat Mittag-Leffler modules. It is shown that for Noetherian domains, the class of all very flat modules is covering, if and only if the class of all locally very flat modules is precovering, if and only if the spectrum of the ring is finite; for domains of cardinality less than 2ω , this is further equivalent to the class of all contraadjusted modules being enveloping.
APA, Harvard, Vancouver, ISO, and other styles
39

LUSCHI, CECILIA MARIA ROBERTA. "Il messaggio della geometria nell'architettura moderna, un esempio: Richard Meier." Doctoral thesis, 1998. http://hdl.handle.net/2158/795252.

Full text
Abstract:
Dopo aver analizzato il ruolo della geometria come reificazione di un concetto filosofico, si è analizzata l'opera di Meier al fine di verificare l'efficacia del contenuto veicolato nello spazio costruito concludendo che non vi è un chiaro linguaggio geometrico nè un contenuto preciso che sia veicolato, nell'architettura sia pubblica che privata dell'architetto americano.
APA, Harvard, Vancouver, ISO, and other styles
40

Esquivel, Joaquim Bento Mântua Inglês. "O clássico moderno; forma e significado. Fenomenologia do espaço cultural. Projecto de um centro de cultura contemporânea no quarteirão de Entrecampos, Lisboa." Master's thesis, 2010. http://hdl.handle.net/10400.5/3324.

Full text
Abstract:
Tese de Mestrado em Arquitectura<br>Memória justificativa para a concepção espacial e expressão formal de um equipamento cultural. Estudo da correspondência entre forma e significado de signos seleccionados do vocabulário arquitectónico clássico. Abordagem do tema da expressão arquitectónica clássica e a sua correspondência com a organização espacial e programa de um edifício. A visão de vários autores sobre o tema da expressão da linguagem clássica. A importância da citação na memória do desenho.<br>A cultural centre’s report on its spatial conceptualization and formal expression. Correlation between form and meaning of a number of selected signs of the classic architectural vocabulary. Synthetic approach on the thematics of classic expression and its correspondence with the spatial organisation and program of a building as an institution. The view of various authors on the subject of the expression of the classical formal language. The importance of quotating in design’s memory.
APA, Harvard, Vancouver, ISO, and other styles
41

Singh, Kadira Analisa 1986. "Geometry and nature of modern and ancient mass transport deposits worldwide." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-05-860.

Full text
Abstract:
Mass transport deposits form a significant portion of the rock record in both modern and ancient basins. Their geometry, composition, distribution and genesis are poorly understood, making it difficult to predict anything about these deposits in assessing subsurface basin stratigraphy or modern seafloor hazards. A tremendous effort has been made in the last few years to characterize and better understand seafloor failures in numerous margins of the world. These mass failures have triggered the interests of geologists, particularly in the oil and gas industry, as they can form prominent seals and reservoirs. To increase our knowledge base of mass transport complexes (MTCs), the characteristics of 259 siliciclastic deposits worldwide, were analyzed in terms of their volume, area, length, thickness, lithology, and tectonic settings. In some instances, MTCs were geo-referenced and digitized into ArcGIS and their dimensions were calculated. These data reveal several interesting points and suggest a number of statistically significant predictive relationships. Sand-rich mass transport deposits show a propensity to be short and thick. Muddy MTCs show a propensity to be longer and thinner. The highest number and largest volume of clastic mass transport deposits occur along passive margins. These mega-MTCs are typically muddy with lengths up to 800 km and volumes up to 5000 km3. Sandy and gravelly Quaternary-age MTCs show maximum lengths of less than 300 km and with volumes less than 2000 km3. Pre-Quaternary MTCs are systematically under-documented in literature, but known occurrences are found in passive, active and convergent margins. The largest (30,000 to 40,000 sq km) occur along the older Tertiary margin of West Africa. To date, 41 separate mass transport deposits composed dominantly of carbonate material have been identified in literature. The most extensive and voluminous (7000 km3) carbonate mass transport complexes occur in the Citronens Fjord, Offshore Greenland. They are 200m thick, Silurian-age mega-breccias that were deposited in a convergent margin setting. On comparison carbonate MTCs tend to show longer flows with coarser grain sizes, while clastics show coarser grained deposits to be of more limited length. The Mad Dog area, Gulf of Mexico is a region of active salt tectonics and mass transport processes. Consequently, it was selected to form a focus study area to test the relationships developed during this project. MTCs in this region were grouped into four main types based on their size, geomorphology and internal structure. Their geometries indicate they are comparable to MTCs found offshore Oregon and New Jersey and are most likely muddy in nature.<br>text
APA, Harvard, Vancouver, ISO, and other styles
42

Saxberg, Bror V. H. "A Modern Differential Geometric Approach to Shape from Shading." 1989. http://hdl.handle.net/1721.1/6826.

Full text
Abstract:
How the visual system extracts shape information from a single grey-level image can be approached by examining how the information about shape is contained in the image. This technical report considers the characteristic equations derived by Horn as a dynamical system. Certain image critical points generate dynamical system critical points. The stable and unstable manifolds of these critical points correspond to convex and concave solution surfaces, giving more general existence and uniqueness results. A new kind of highly parallel, robust shape from shading algorithm is suggested on neighborhoods of these critical points. The information at bounding contours in the image is also analyzed.
APA, Harvard, Vancouver, ISO, and other styles
43

Wu, Chiang-Sheng, and 吳強生. "Beyond standing wave model:a novel metamaterial with unusual tolerance on geometry." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/12974090219550032053.

Full text
Abstract:
碩士<br>國立臺灣大學<br>物理研究所<br>99<br>Magnetic resonances are essential for achieving negative permeability and play important roles in realizing negative refraction phenomena. Surface plasmonic resonances confined in metallic nanostructures (i.e. metamaterials) are known to exhibit magnetic resonances that can be tailored by the structural geometries. In the past, researchers utilized standing wave model to explain the resonant frequencies of simply-connected metamaterials. Based on this model, the resonant frequencies of a metamaterial are inversely proportional to its structural length. In this work, we find that for a multiply-connected metamaterial, its resonant frequencies can largely deviate from the standing wave model. Remarkably, when the longest or the total length of the metamaterial is fixed, we find that the resonant frequency shows linear dependence on the circumference of the enclosed loop, an unusual phenomenon clearly violates the standing wave model. We also find that self-interactions can affect the frequency vs. length relationships in metamaterials. Importantly, when there is a balance between these effects, we discover a metamaterial whose resonant frequency is independent of its shape, length, or even the constituent materials.
APA, Harvard, Vancouver, ISO, and other styles
44

Godinho, Rui Jorge Marques 1969. "Geometria descritiva : artes ou ciências." Master's thesis, 2015. http://hdl.handle.net/11067/1598.

Full text
Abstract:
Relatório de estágio realizado no âmbito do mestrado em Ensino de Artes Visuais no 3.º Ciclo do Ensino Básico e no Ensino Secundário, Universidade Lusíada de Lisboa, 2015<br>Exame público realizado em 28 de Julho de 2015<br>Esta dissertação tem por objetivo apresentar uma reflexão crítica sobre o trabalho desenvolvido no âmbito da Prática do Ensino Supervisionada – estágio –, do Mestrado de Ensino de Artes Visuais, bem como uma investigação sobre um tema relevante para o ensino da disciplina de Geometria Descritiva A no ensino secundário – Geometria Descritiva: Ciência ou Arte. Na primeira parte, apresenta-se a identidade, a caracterização, o Projeto Educativo e a organização e funcionamento da instituição onde se desenvolveu o estágio, no sentido de contextualizar a problemática, e referem-se as atividades desenvolvidas durante a prática pedagógica, nomeadamente na disciplina de Educação Visual do 2º ciclo do ensino básico e na disciplina de Geometria Descritiva A do ensino secundário, acompanhada de reflexão crítica. A segunda parte, e no que se refere à investigação os objetivos são verificar as diferenças entre os desempenhos em Geometria Descritiva A dos alunos, do Colégio Moderno, de 10º e 11º anos, de Artes Visuais e de Ciências e Tecnologias, explorar e interpretar as flutuações encontradas e secundariamente, compreender o impacto do exame nos resultados alcançados.
APA, Harvard, Vancouver, ISO, and other styles
45

Lessig, Christian. "Modern Foundations of Light Transport Simulation." Thesis, 2012. http://hdl.handle.net/1807/32808.

Full text
Abstract:
Light transport simulation aims at the numerical computation of the propagation of visible electromagnetic energy in macroscopic environments. In this thesis, we develop the foundations for a modern theory of light transport simulation, unveiling the geometric structure of the continuous theory and providing a formulation of computational techniques that furnishes remarkably efficacy with only local information. Utilizing recent results from various communities, we develop the physical and mathematical structure of light transport from Maxwell's equations by studying a lifted representation of electromagnetic theory on the cotangent bundle. At the short wavelength limit, this yields a Hamiltonian description on six-dimensional phase space, with the classical formulation over the space of "positions and directions" resulting from a reduction to the five-dimensional cosphere bundle. We establish the connection between light transport and geometrical optics by a non-canonical Legendre transform, and we derive classical concepts from radiometry, such as radiance and irradiance, by considering measurements of the light energy density. We also show that in idealized environments light transport is a Lie-Poisson system for the group of symplectic diffeomorphisms, unveiling a tantalizing similarity between light transport and fluid dynamics. Using Stone's theorem, we also derive a functional analytic description of light transport. This bridges the gap to existing formulations in the literature and naturally leads to computational questions. We then address one of the central challenges for light transport simulation in everyday environments with scattering surfaces: how are efficient computations possible when the light energy density can only be evaluated pointwise? Using biorthogonal and possibly overcomplete bases formed by reproducing kernel functions, we develop a comprehensive theory for computational techniques that are restricted to pointwise information, subsuming for example sampling theorems, interpolation formulas, quadrature rules, density estimation schemes, and Monte Carlo integration. The use of overcomplete representations makes us thereby robust to imperfect information, as is often unavoidable in practical applications, and numerical optimization of the sampling locations leads to close to optimal techniques, providing performance which considerably improves over the state of the art in the literature.
APA, Harvard, Vancouver, ISO, and other styles
46

BERTACCHI, SILVIA. "Modelli compositivi per la difesa “alla moderna”. L’esperienza di Giovanni Battista Antonelli." Doctoral thesis, 2013. http://hdl.handle.net/2158/799879.

Full text
Abstract:
Il lavoro si pone l’obiettivo di analizzare i modelli compositivi dell’architettura militare cinquecentesca proposti dall’ingegnere militare italiano Giovanni Battista Antonelli, che operò nella seconda metà del XVI secolo al servizio del re Filippo II di Spagna. La ricerca, attraverso lo spoglio di cospicui fondi documentali relativi all’opera di Antonelli in Spagna, mira ad analizzare le teorie proposte nel trattato manoscritto compilato dall’ingegnere nel 1560-1 e, attraverso l’approfondimento di alcuni dei suoi progetti e realizzazioni, intende soffermarsi in particolare sulle metodologie ed i riferimenti geometrici impiegati per la progettazione e per il proporzionamento degli edifici difensivi.
APA, Harvard, Vancouver, ISO, and other styles
47

Yang, Yao-Hao, and 楊曜豪. "Accelerating phase modulation for correcting EPI geometric distortion by modern GPGPU parallel computation." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/56997355667339042080.

Full text
Abstract:
碩士<br>國立臺灣科技大學<br>電機工程系<br>98<br>Phase modulation combined with field map has been shown a practical method to correct the EPI geometric distortion. However, since the phase dispersion accumulates on each phase encoding step, the calculation complexity of phase modulation is Ny-fold higher than conventional image reconstruction and cannot be reduced due to asymmetric phase accumulation in the k-space. Thus, correcting all volumes of dynamic studies (e.g. fMRI or perfusion) generally takes minutes even using the state-of-the-art computer hardware. Recently, the parallel computing using general-purpose computation on graphics processing units (GPGPU) shows able to accelerate the scientific computing if the algorithm can be parallelized. In our study, we proposed to incorporate the GPGPU technique into phase-modulation calculation to reduce the whole computation time. Applying on the PROPELLER EPI data set, the parallel algorithm reduced the computation time from ~1750 seconds to ~100 seconds. We conclude that the GPU computing is a promising method to accelerate EPI geometric correction.
APA, Harvard, Vancouver, ISO, and other styles
48

Yadav, Brijesh Kumar. "Geometric morphometric comparison between modern homo sapien skulls of south india and rest of the world." Thesis, 2011. http://ethesis.nitrkl.ac.in/2406/1/brijeshthesis.pdf.

Full text
Abstract:
Morphometry can be defined as the measurement of shape irrespective of the variations of size (scale, translation and rotation). In the recent years, a lot of work has been done world-wide to analyze the variations in the human morphology.Most of the work in this direction was done mainly on African or American population. Lack of work on Indian population arouse our interest to make a study on the same. In the present work, we planned to compare the modern Homo sepien skull of South India and modern Homo sepien skull of world-wide important African male, Australian aboriginal male, African-American male etc. and tried to establish a relationship between them according to their shape. It has been successfully established the relation between the skulls according to the shape closeness. Specimen 10 (South Indian Skull)and 11 (South Indian Skull) have similarity in skull shape which shows the correctness of our result. Specimen 0 (Mongoloid Skull) and 6 (Human Male African-American Skull) show similar shape variation. Specimen 12 (Vedaface) is quite close to (Human Male Asian Skull)8 and 7 (Human Female American Indian Skull). But Specimen 9 (Mongoloid Skull) is found to be quite different from all others. A negative result is also obtained by relative warp which contradicts PCA and shows that specimen 10 (South Indian Skull) posseses similar deformation with respect to specimen 9 (Mongoloid Skull) however 11 (South Indian Skull) is also near. Also 0 (Mongoloid Skull) and 6 (Human Male African-American Skull) are far apart. The result obtained is quite enthusiastic and but further studies in this directions on Indian population is highly required.
APA, Harvard, Vancouver, ISO, and other styles
49

Driscoll, Kathryn. "Secular change of the modern human bony pelvis examining morphology in the United States using metrics and geometric morphometry /." 2010. http://trace.tennessee.edu/utk_graddiss/688.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Driscoll, Kathryn R. D. "Secular Change of the Modern Human Bony Pelvis: Examining Morphology in the United States using Metrics and Geometric Morphometry." 2010. http://trace.tennessee.edu/utk_graddiss/688.

Full text
Abstract:
The human bony pelvis has evolved into its current form through competing selective forces. Bipedalism and parturition of large headed babies resulted in a form that is a complex compromise. While the morphology of the human pelvis has been extensively studied, the changes that have occurred since the adoption of the modern form, the secular changes that continue to alter the size and shape of the pelvis, have not received nearly as much attention. This research aims to examine the changes that have altered the morphology of the human bony pelvic girdle of individuals in the United States born between 1840 and1981. Secular changes in the human skeleton have been documented. Improvements in nutrition, decreased disease load, exogamy, activity, climate, and other factors have led to unprecedented growth in stature and weight. The size and shape of the pelvic canal, os coxa, and bi-iliac breadth were all examined in this study. Coordinate data from males and females, blacks and whites were digitized. Calculated inter-landmark data was analyzed using traditional metric methods and the coordinate data was analyzed using 3D geometric morphometrics. After separating the samples into cohorts by sex and ancestry, results indicate that there is secular change occurring in the modern human bony pelvis. Changes in shape are significant across the groups while only white males exhibit increases in size. The dimensions of the pelvic canal have changed over time. The birth canal is becoming more rounded with the inlet anteroposterior diameter and the outlet transverse diameter becoming longer. These diameters, once limiters, are believed to have led to an adoption of the rotational birth method practiced by modern humans. In addition, the bowl of the pelvis is becoming less flared. Childhood improvements in nutrition and decreases in strenuous activity may be the cause of the dimension changes in the bony pelvis. The similar changes across both sexes and ancestries indicate a similar environmental cause. However, it is likely a combination of factors that are difficult to tease apart. Whether the increases continue remains to be determined.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography