The Hill's equation is the Schrodinger equation $$-y'+qy=la y$$ with a periodic one-dimensional potential function $q$ and coupled with periodic boundary conditions $y(0)=y(1)$, $y'(0)=y'(1)$ or anti-periodic boundary conditions $y(0)=-y(1)$, $y'(0)=-y'(1)$. We study the inverse nodal problem for Hill's equation, in particular the reconstruction problem. Namely, we want to reconstruct the potential function using only nodal data ( zeros of eigenfunctions ). In this thesis, we give a reconstruction formula for $q$ using the periodic nodal data or using anti-periodic nodal data We show that the convergence is pointwise for all $x in (0,1)$ where $q$ is continuous; and pointwise for $a.e.$ $x in (0,1)$ as well as $L^1$ convergence when $qin L^1(0,1)$. We do this by making a translation so that the problem becomes a Dirichlet problem. The idea comes from the work of Coskun and Harris.

Made available in DSpace on 2016-04-26T18:12:55Z (GMT). No. of bitstreams: 1 Ruben Darga Holdorf.pdf: 4082110 bytes, checksum: 8f484aa92d8b8568b4d8bba9b1069c8e (MD5) Previous issue date: 2013-05-21 / This research examines the modes of construction of the texts about Latin-American presidents which appeared in the Brazilian press media in the years 2000, 2005 and 2010, which years were marked by an intense alternance of power in most countries of this continent. It endeavors to analyze how the media devices design the idealization of the Other, when in the role of president. We start with the assumption that the media sets out slogans calling their audiences to approve of some presidents and to disapprove of others, and that by so doing it supports an impoverished democracy. They also trace a boundary line separating Brazil from the Latin-American countries in the topologic-political spaces of the Self and of the Other, making an opposition without subtleties and complexities. The main theoretical bases of this research are Ernesto Laclau s discourse, the reflections on Democracy and on The Self/The Other written by Chantal Mouffe, and Boaventura Santos definition of borderline. Involving periodics of expressive circulation, which maintain correspondents in the several countries of the continent and which rely on information provided by international news agencies to produce the contents relative to Latin America, the research corpus consists of the following newspapers and magazines: Folha de S.Paulo, O Estado de S. Paulo, Veja and Carta Capital / Esta pesquisa investiga os modos de construção das narrativas sobre os presidentes latino-americanos na mídia impressa brasileira, nos anos 2000, 2005 e 2010, assinalados pela intensa alternância de poder na maior parte dos países do continente. Trata-se de analisar o modo pelos quais os dispositivos midiáticos projetam e idealizam o Outro-presidente e seu estilo de governar. Partimos da hipótese de que as mídias enunciam palavras de ordem ligadas à democracia, convocando seus públicos para aprovar uns e repovar outros presidentes e, em assim fazendo, sustentam uma democracia empobrecida. Além disso, demarcam uma linha fronteiriça, separando o Brasil dos países latino-americanos nos espaços topológico-políticos do Mesmo e do Outro, ao modo de uma oposição sem sutilezas e complexidades. São bases teóricas principais da pesquisa a teoria do discurso de Ernesto Laclau, as reflexões sobre democracia e o Mesmo/Outro de Chantal Mouffe e a definição de linha fronteiriça , ou abissal , de Boaventura Santos. Envolvendo periódicos de expressiva tiragem, que mantêm correspondentes na América Latina e empregam os serviços das agências noticiosas internacionais para produzir seus conteúdos sobre o continente, o corpus da pesquisa compreende os seguintes jornais e revistas: Folha de S.Paulo, O Estado de S. Paulo, Veja e Carta Capital

Denna avhandling har godkänts i Sydafrika och sedan publicerats av Svenska Institutet för Missionsforskning (SIM) i efterhand.

Title: “We are everywhere” – an analysis of the discourse surrounding AIK football club on social media   The purpose of this study is to discern what the discourse surrounding Swedish football club Allmänna Idrottsklubben (AIK) and its fans look like on the social media platforms Facebook, Twitter, and Instagram. This is done by examining every post by AIK on these platforms and the fan response to each post. The opportunities for clubs such as AIK to communicate directly with its fans has increased greatly with the invention of social media, and this breakthrough in communication has also had the added effect of allowing fans to much easier voice their own opinions. Thus, we are presented with an area of communication that represents an interesting object of study.   The method used is based partly on Ernesto Laclau and Chantal Mouffes theory on discourse analysis and partly on Roland Barthes theory on myths. Both theories offers some tools for analysis and when combined provides the opportunity for in-depth study. The results show that the discourse is largely centred around nodal points such as “Love”, and “the Club Emblem”. Through these AIK communicate the importance of itself to its fans and gives them a reason to “be a part of something greater”. Some of the myths found such as the “Family myth” or the “Hero myth” adds to this notion. However, the supporters don’t always agree with AIK which is why another major theme in the discourse was their “Criticism”. The supporters could also be found arguing among themselves about what being an AIK-fan meant which exposed the “True-fan myth”. Through all of this the study found sign of an underlying importance of active participation within the fandom, which enhanced the experience of being a supporter.   Key words: AIK, discourse analysis, fandom, supporter, myth, nodal point, communication, football

This thesis introduces the construction design of two-axis positioning device to be used as panoramic head. Theoretical part explains parts of the device and in the practical part is the device assembled. The result is a complete positioning device for digital camera Canon EOS 500D and for similar camera.

The aim of this study is to examine how politicians use language and communication strategies when discussing gang crime in the media. Through an ethnological approach, this study aims to delve into the narratives constructed by political figures about gang crime in media representations. By analyzing how different political actors articulate their opinions and select specific terms, the study seeks to shed light on the political perspectives and the overarching discourse on the topic. By exploring questions such as how politicians communicate about gang crime and the terminology they employ, the study aims to enhance our understanding of how language in the media can influence perceptions and discussions about gang crime.