• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 104
  • 33
  • 19
  • 17
  • 12
  • 11
  • 7
  • 3
  • 2
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • Tagged with
  • 242
  • 67
  • 41
  • 37
  • 30
  • 26
  • 26
  • 25
  • 21
  • 19
  • 17
  • 16
  • 16
  • 16
  • 15
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
201

Anden i flaskan : Varför och på vilka sätt naturvinsrörelsen kan kallas för en religiös rörelse / The Genie in the Bottle : Why and how the natural wine movement resembles a religious movement

Sjöberg, John January 2022 (has links)
This essay examines in what ways the natural wine movement resembles a religious new age movement. The purpose behind this is to prove that the religious landscape that contains new age is vast. And that there still are domains where scientist haven’t ventured. This empirical study is done through an examination, using a qualitative method, of the book Naturligt vin written by Emil Broomé and Emil Arvidson. By using theories from Bruce Lincoln and Charles Tillys, this essay concluded that the natural wine movement can be defined and seen as a religious new age movement.
202

Tricyclic Steiner Triple Systems with 1-Rotational Subsystems.

Tran, Quan Duc 14 August 2007 (has links) (PDF)
A Steiner triple system of order v, denoted STS(v), is said to be tricyclic if it admits an automorphism whose disjoint cyclic decomposition consists of three cycles. In this thesis we give necessary and sufficient conditions for the existence of a tricyclic STS(v) when one of the cycles is of length one. In this case, the STS(v) will contain a subsystem which admits an automorphism consisting of a fixed point and a single cycle. The subsystem is said to be 1-rotational.
203

Western Esotericism references in Dario Argento’s triology The Three Mothers

Spagnoli, Emilie January 2023 (has links)
This thesis aims to explore the influences and references, with a particular focus from occultism and western esotericism, found in the film trilogy of The Three Mothers directed by Dario Argento. The trilogy composed of Suspiria, Inferno and The Mother of Tears was produced in a timeframe of thirty years from 1977 to 2007, so it embeds three decades, it also reflects the willingness from the director to disconnect himself from the usual representation of supernatural and horror films of witches and power. The three films Suspiria, Inferno and The Mother of Tears, present an innovative point of view, first of all, the representation of power in the context of horror and secondly, for the nature of references distributed throughout the trilogy. This thesis presents a film analysis of Suspiria, Inferno and The Mother of Tears investigating the semiotics behind the symbols, storytelling, characters, and technical aspects of film production. This work concludes that the deep desk research conducted by Argento on occultism and western esotericism before engaging into the production has deeply influenced it. The references to occultism, western esoteric schools, Steiner and alchemic influences are several, Christianity is also present in the trilogy with a dystopic lent. There is also a gender aspect analysed in the trilogy connected with the representation of feminine power, as the mothers in the trilogy represent witches, a supreme independent source of truth and power disconnected from any Christian and/or masculine representation. Suspiria, Inferno and The Mother of Tears can be then interpreted as a way to challenge the patriarchate power. This thesis is opening with the relevance of references from occultism to be found in several expressions of popular culture in our contemporary society. However, this aspect has not been investigated further than that. It has been utilized to serve the purpose of highlighting the elements in common between Argento’s trilogy and those expressions of popular culture (i.e. horror and supernatural TV series). If this research will be one day extended, the next step would be to find, in other expressions of popular culture (films, manga, graphic novels…), references in line with the ones traced in the trilogy. This would lead to investigate further the way occultism has influenced expressions of art and culture. Another point that is kept for a potential future research, would be to investigate which other examples of horror and supernatural films will be produced (or had been produced), where power and feminine representation breaks the traditional tendency of connecting power either with a Christian notion of evil or with a patriarchal form of power. In this regard, I am sure expressions from Artificial intelligence will come to play a role, but this is due maybe for the future, and maybe for another research to connect these dots.
204

Místo waldorfské pedagogiky v současném českém školství / Position Waldorf pedagogy in the current Czech education

Franko, Radek January 2014 (has links)
This diploma thesis deals with Waldorf pedagogy. It is divided into five chapters. The first two map the circumstances of Waldorf education and life-shaping the mind constructs its founder Rudolf Steiner. The remaining three chapters answer questions regarding: Waldorf teaching specifics, personality profile Waldorf teachers and planting Czech Waldorf pedagogy in contemporary Czech education stream. Key words anthroposophy, Czech education, Rudolf Steiner, Waldorf school teacher, Waldorf pedagogy, Waldorf teaching
205

Eulerian Properties of Design Hypergraphs and Hypergraphs with Small Edge Cuts

Wagner, Andrew 23 April 2019 (has links)
An Euler tour of a hypergraph is a closed walk that traverses every edge exactly once; if a hypergraph admits such a walk, then it is called eulerian. Although this notion is one of the progenitors of graph theory --- dating back to the eighteenth century --- treatment of this subject has only begun on hypergraphs in the last decade. Other authors have produced results about rank-2 universal cycles and 1-overlap cycles, which are equivalent to our definition of Euler tours. In contrast, an Euler family is a collection of nontrivial closed walks that jointly traverse every edge of the hypergraph exactly once and cannot be concatenated simply. Since an Euler tour is an Euler family comprising a single walk, having an Euler family is a weaker attribute than being eulerian; we call a hypergraph quasi-eulerian if it admits an Euler family. Due to a result of Lovász, it can be much easier to determine that some classes of hypergraphs are quasi-eulerian, rather than eulerian; in this thesis, we present some techniques that allow us to make the leap from quasi-eulerian to eulerian. A triple system of order n and index λ (denoted TS(n,λ)) is a 3-uniform hypergraph in which every pair of vertices lies together in exactly λ edges. A Steiner triple system of order n is a TS(n,1). We first give a proof that every TS(n,λ) with λ ⩾ 2 is eulerian. Other authors have already shown that every such triple system is quasi-eulerian, so we modify an Euler family in order to show that an Euler tour must exist. We then give a proof that every Steiner triple system (barring the degenerate TS(3,1)) is eulerian. We achieve this by first constructing a near-Hamilton cycle out of some of the edges, then demonstrating that the hypergraph consisting of the remaining edges has a decomposition into closed walks in which each edge is traversed exactly once. In order to extend these results on triple systems, we define a type of hypergraph called an ℓ-covering k-hypergraph, a k-uniform hypergraph in which every ℓ-subset of the vertices lie together in at least one edge. We generalize the techniques used earlier on TS(n,λ) with λ ⩾ 2 and define interchanging cycles. Such cycles allow us to transform an Euler family into another Euler family, preferably of smaller cardinality. We first prove that all 2-covering 3-hypergraphs are eulerian by starting with an Euler family that has the minimum cardinality possible, then demonstrating that if there are two or more walks in the Euler family, then we can rework two or more of them into a single walk. We then use this result to prove by induction that, for k ⩾ 3, all (k-1)-covering k-hypergraphs are eulerian. We attempt to extend these results further to all ℓ-covering k-hypergraphs for ℓ ⩾ 2 and k ⩾ 3. Using the same induction technique as before, we only need to give a result for 2-covering k-hypergraphs. We are able to use Lovász's condition and some counting techniques to show that these are all quasi-eulerian. Finally, we give some constructive results on hypergraphs with small edge cuts. There has been analogous work by other authors on hypergraphs with small vertex cuts. We reduce the problem of finding an Euler tour in a hypergraph to finding an Euler tour in each of the connected components of the edge-deleted subhypergraph, then show how these individual Euler tours can be concatenated.
206

Os quatro temperamentos na Antroposofia de Rudolf Steiner

Mutarelli, Sandra Regina Kuka 21 June 2006 (has links)
Made available in DSpace on 2016-04-28T14:16:26Z (GMT). No. of bitstreams: 1 sandra mutarelli.pdf: 3399845 bytes, checksum: c88b4129ab5074cf6590b7b7f9b3c78d (MD5) Previous issue date: 2006-06-21 / Rudolf Steiner (1861-1925) was a philosopher, journalist and educator. Nowadays he is usually associated with lhe Camphill movement of curativa education and its architecture, several studies on religion, lhe biodynamical agricultura and lhe anthroposophical medicina. The aim of this research is to analyse Steiner's ideas concerning lhe four temperaments, taking into account its historical context, trying to check lhe similarities and differences between Steiner's conceptions and lhe concept of lhe four temperaments which is present in some writings belonging to lhe ancient Hippocratic-Galenic tradition. This dissertation contains an introduction and five chapters. Chapter 1 discusses some features of lhe ancient theory of lhe four humours, lhe theory of lhe temperaments and their developments. Chapter 2 providas a general overlook of Steiner's context and deals with his background, career, professional interests as well as some of lhe possible influences he received. Chapter 3 studies Steiner's conception of lhe four temperaments as presented in his work Das Geheimnis der menschlichen Temperamenteas well as olhar works by Steiner. It algo analyses lhe application of lhe conception of lhe four types of temperaments to education. Chapter 4 compares Rudolf Steiner's ideas concerning lhe four temperaments to lhe ideas which are part of lhe Hippocratic-Galenic tradition on this respect. Chapter 5 presents some final remarks on lhe subject. This study lead to lhe conclusion that although there are some similarities between lhe two conceptions in some respects, there are algo wide differences between them. For example, in both cases lhe terminology is lhe sarna. However, whereas in lhe Hippocratic-Galenic tradition, lhe temperament is produced by lhe predominance of one of lhe four humours (blood, yellow bife, phlegm and black bife), in Steiner's conception it is produced by lhe predominance of one of lhe four components of man (the physical body, lhe astral body, lhe ethereal body and lhe selt). Moreover, it was pointed out that Steiner's conception of lhe four temperaments providas a bridge uniting lhe pedagogical knowledge and lhe knowledge of lhe human constitution / Rudolf Steiner (1861-1925) foi um filósofo, jornalista e educador. Atualmente seu nome está associado ao movimento Camphill de educação curativa, sua arquitetura, vários estudos sobre religião, à agricultura biodinâmica e à medicina antroposófica. . O objetivo principal desta pesquisa é analisar as idéias de Steiner acerca dos quatro temperamentos, dentro de seu contexto histórico, procurando verificar até que ponto existem semelhanças e diferenças entre as concepções de Steiner e o conceito dos quatro temperamentos que faz parte da antiga tradição hipocráticogalênica. Esta dissertação contém uma introdução e cinco capítulos. O capítulo 1 discute alguns aspectos da teoria humoral, da teoria dos temperamentos e seus desdobramentos. O capítulo 2 dá uma idéia geral do contexto de Steiner e trata de sua formação, carreira, interesses profissionais, bem como sobre algumas possíveis influências sobre seu pensamento. O capítulo 3 apresenta a concepção dos temperamentos em Steiner que aparece na obra Das Geheimnis der menschlichen Temperamente e suas relações com outros estudos do autor. Discute também a aplicação da concepção dos quatro temperamentos à educação. O capítulo 4 compara as idéias de Rudolf Steiner acerca dos quatro temperamentos com a concepção dos quatro temperamentos na tradição hipocrático-galênica. O capítulo 5 apresenta algumas considerações finais sobre o assunto. Este estudo levou à conclusão de que, embora existam algumas semelhanças entre as duas concepções em relação a alguns pontos, existem também grandes diferenças. Por exemplo, em ambas concepções a terminologia empregada para se referir aos tipos de temperamentos é a mesma. Porém, enquanto na tradição hipocrático-galênica os temperamentos eram determinados pela predominância de um dos quatro humores (sangue, bílis negra, bílis amarela e fleuma), na concepção de Steiner eles eram determinados pela predominância de um dos quatro membros constitutivos do homem (corpo físico, corpo etéreo, corpo astral e o eu). Além disso, verifica-se que a concepção dos quatro temperamentos de Steiner constitui uma ponte de integração entre saberes pedagógicos e os saberes sobre a constituição humana
207

Elipse de Steiner / Steiner's Ellipse

Santana, Gleisson Rodrigues 26 September 2014 (has links)
Submitted by Luanna Matias (lua_matias@yahoo.com.br) on 2015-02-09T14:23:51Z No. of bitstreams: 2 Dissertação - Gleisson Rodrigues Santana - 2014.pdf: 8324640 bytes, checksum: 7800065ef09bc6ed1b331e277537350b (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-02-20T11:23:23Z (GMT) No. of bitstreams: 2 Dissertação - Gleisson Rodrigues Santana - 2014.pdf: 8324640 bytes, checksum: 7800065ef09bc6ed1b331e277537350b (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2015-02-20T11:23:23Z (GMT). No. of bitstreams: 2 Dissertação - Gleisson Rodrigues Santana - 2014.pdf: 8324640 bytes, checksum: 7800065ef09bc6ed1b331e277537350b (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2014-09-26 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This work is focused on demonstrating, using geometric tools, the Steiner's Ellipse theorem which says that all ellipses entered in a given triangle, the larger area is touching the triangle sides in their respective middle points. For this we did, in chapter one, an approach to the study of triangles, the ellipses, the orthogonal projection, and we present some results of arithmetic and geometry, this work titled as preliminary lemmas, to be the tools (prerequisites) for proof the theorem that the main is made in chapter two. We conclude by presenting, in chapter three, some applications and some scripts for lessons in how to use the ellipse, and in particular Steiner's Ellipse, day-to-day and in the classroom. / Este trabalho tem como tema central demonstrar, usando ferramentas geométricas, o teorema da Elipse de Steiner que diz que de todas as elipses inscritas em um triângulo dado, a de maior área é a que toca os lados do triângulo nos seus respectivos pontos médios. Para isto zemos, no Capítulo um, uma abordagem sobre o estudo dos triângulos, da elispse, e da projeção ortogonal, e apresentamos alguns resultados de aritmética e geometria, neste trabalho intitulados como lemas preliminares, para serem as ferramentas (os pré-requisitos) para a demonstração do teorema principal, que é feita no Capítulo dois. Concluímos o trabalho apresentando, no Capítulo três, algumas aplicações e alguns roteiros de aulas, de como utilizar a elipse, e em particular a Elipse de Steiner, no dia-a-dia e na sala de aula.
208

O teorema de Marden e uma generalização / Marden’s theorem and a generalization

Volpato, Pollyana Gomes 09 December 2016 (has links)
Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-01-10T14:58:57Z No. of bitstreams: 2 Dissertação - Pollyana Gomes Volpato - 2016.pdf: 1172027 bytes, checksum: 6e8ebfc67549380e690db90bc68b9104 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-01-11T09:42:09Z (GMT) No. of bitstreams: 2 Dissertação - Pollyana Gomes Volpato - 2016.pdf: 1172027 bytes, checksum: 6e8ebfc67549380e690db90bc68b9104 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-01-11T09:42:09Z (GMT). No. of bitstreams: 2 Dissertação - Pollyana Gomes Volpato - 2016.pdf: 1172027 bytes, checksum: 6e8ebfc67549380e690db90bc68b9104 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-12-09 / The main objective of this work is to demonstrate Marden’s Theorem, which tells us that given a third-degree polynomial with complex coefficients, the roots of this polynomial are not collinear and form a triangle T in the complex plane. There is a unique ellipse inscribed in T and tangent to the sides at their midpoints. The foci of this ellipse are the roots of the derivative of the polynomial. We show that such an ellipse is Steiner’s Ellipse. We make a generalization of the Marden Theorem using degree n polynomial. / Temos como objetivo central neste trabalho demonstrar o Teorema de Marden, que nos diz que, dado um polinômio de terceiro grau com coeficientes complexos, as raízes desse polinômio não são colineares e formam um triângulo T no plano complexo. Há uma única elipse inscrita em T e tangente aos lados nos seus pontos médios. Os focos dessa elipse são as raízes da derivada do polinômio. Mostramos que tal elipse é a Elipse de Steiner. Fazemos uma generalização do Teorema de Marden utilizando polinômio de grau n.
209

On Defining Sets in Latin Squares and two Intersection Problems, one for Latin Squares and one for Steiner Triple Systems

Thomas Mccourt Unknown Date (has links)
Consider distinct latin squares, L and M, of order n. Then the pair (T1, T2) where T1 = L \M and T2 = M \ L is called a latin bitrade. Furthermore T1 and T2 are referred to as latin trades, in which T2 is said to be a disjoint mate of T1 (and vice versa). Drápal (1991) showed that, under certain conditions, a partition of an equilateral triangle of side length n, where n is some integer, into smaller, integer length sided equilateral triangles gives rise to a latin trade within the latin square based on the addition table for the integers modulo n. A partial latin square P of order n is said to be completable if there exists a latin square L of order n such that P ⊆ L. If there is only one such possible latin square, L, of order n then P is said to be uniquely completable and P is called a defining set of L. Furthermore, if C is a uniquely completable partial latin square such that no proper subset of C is uniquely completable, C is said to be a critical set or a minimal defining set. These concepts, namely latin trades and defining sets in latin squares, are intimately connected by the following observation. If L is a latin square and D ⊆ L is a defining set, then D intersects all latin bitrades for which one mate is contained in L. In Part I of this thesis Dr´apal’s result is applied to investigate the structure of certain defining sets in latin squares. The results that are obtained are interesting in themselves; furthermore, the geometric approach to the problem yields additional appealing results. These geometric results are discussed in Chapters 3, 4, 5 and 6. They pertain to partitioning regions (polygons in R2 that satisfy certain obvious conditions) into equilateral, integer length sided, triangles, such that no point, in the region, is a corner of more than three distinct triangles. In Chapter 2 one of the main two theorems on defining sets is established, as is a method for using the above geometric results to prove the nonexistence of certain types of defining sets. In Part II of this thesis, intersection problems, for latin squares and Steiner triple systems, are considered. The seminal works, for problems of these types, are due to Lindner and Rosa (1975) and Fu (1980). A natural progression, from the established literature, for intersection problems between elements in a pair of latin squares or Steiner triple systems is to problems in which the intersection is composed of a number of disjoint configurations (isomorphic copies of some specified partial triple system). In this thesis solutions to two intersection problems for disjoint configurations are detailed. An m-flower, (F,F), is a partial triple system/configuration, such that: F = {{x, yi, zi} | {yi, zi} ∩ {yj , zj} = ∅, for 0 ≤ i, j ≤ m − 1, i 6= j}; and F = UX∈FX. The first such problem considered in this thesis asks for necessary and sufficient conditions for integers k and m ≥ 2 such that a pair of latin squares of order n exists that intersect precisely in k disjoint m-flowers. The necessary terminology, constructions, lemmas and proof for this result are contained in Chapters 7, 8 and 9. The second such problem considered in this thesis asks for necessary and sufficient conditions for integers k such that a pair of Steiner triple systems of order u exists that intersect precisely in k disjoint 2-flowers. This result relies on the solution to the latin square problem and an additional result from Chapter 9. The further constructions and lemmas used to prove this result are detailed in Chapter 10.
210

Colorations de graphes et applications

Sereni, Jean-Sébastien 05 July 2006 (has links) (PDF)
Cette thèse comporte trois parties. Dans la première partie, un problème d'allocation de fréquences, proposé par Alcatel, est modélisé en termes de coloration de graphes : un graphe est k-improprement l-colorable<br />s'il est possible, étant données l couleurs, d'attribuer une couleur à chacun de ses sommets de sorte que chaque sommet ait au plus k voisins de la même couleur que lui.<br />Différentes problématiques sont ensuite étudiées :<br />la coloration impropre (et la choisissabilité impropre) des<br />graphes de densité bornée (englobant le cas des graphes de genre borné et de maille donnée), celles des graphes d'intersection de disques unitaires (y compris<br />pour des instances aléatoires, et pour des ensembles de points infinis), ainsi que la coloration impropre pondérée des sous-graphes du réseau triangulaire.<br /><br />La deuxième partie regroupe différents problèmes de colorations de graphes, plus ou moins reliés au problème d'allocation de fréquences, pour lesquels nous avons obtenus de nouveaux résultats. Il s'agit de la coloration 3-faciale des graphes planaires, de la choisissabilité circulaire et de diverses généralisations de l'arête-coloration des graphes cubiques, en particulier par des éléments de groupes abéliens, et des triplets de Steiner.<br /><br />Dans la troisième partie, nous nous intéressons à un problème de reroutage de requêtes, sans perte de service, dans les réseaux WDM. Dans un premier temps, un nouvel invariant des graphes est introduit afin de modéliser cette question.<br />Comme il s'avère que ce paramètre est proche de celui, bien connu, de largeur arborescente linéaire (pathwidth), ce dernier nous a également intéressé et nous avons<br />obtenu de nouveaux résultats concernant la relation entre la largeur arborescente lineaire d'un graphe planaire extérieur 2-connexe et celle de son dual.

Page generated in 0.017 seconds