Thesis (Ph. D.)--University of South Florida, 2008. / Title from PDF of title page. Document formatted into pages; contains 133 pages. Includes vita. Includes bibliographical references.

Text in English / This study analyses the application of a community based intervention, the Care Group (CG) model, in relief work in Somalia and South Sudan. On the basis of expert interviews and a variety of documents it was researched whether the CG model is applicable to the context mentioned or if adaptations would be necessary. An increase in prolonged crises challenges humanitarian action to adapt relief work to longer-term interventions. The concept of combining the strengths of development cooperation and humanitarian action - Linking Relief, Rehabilitation and Development - is looked at in this study. Furthermore, for example, the asset-based community development approach, humanitarian work and characteristics of a protracted crisis were explored as the theoretical back-ground. The findings and the conclusion of this research may provide inputs for other humanitarian NGOs that are working in chronic conflict situations and being confronted with the need to introduce a long-term method for Behaviour Change Communication. / Development Studies / M.A. (Development Studies)

This dissertation was carried out to try to understand the role of social capital in the migration of Zimbabwean migrants to Botswana. It describes elements and types of social capital Zimbabwean undocumented migrants used to come to Botswana. Questionnaires and in-depth interviews were used to obtain data from respondents. Though the influence of macro factors initially pushed migrants to migrate, there was evidence of the existence of social networks. Findings showed the use of social networks by Zimbabwean undocumented migrants. Though kinship networks were dominant in the initial migration stages there was a wane in the destination as migrants reverted to friendship networks for flexibility. Linking existed at both the place of origin and destination. Social control, channelling and negative social capital were discovered among migrants. Migrants developed mechanisms to counter the Botswana’s enforcement policy. / Sociology

Made available in DSpace on 2014-12-17T14:16:25Z (GMT). No. of bitstreams: 1 AcariliaES_Dissert_01.pdf: 1640327 bytes, checksum: 9c4568aff953d538d26000691eb0407d (MD5) Previous issue date: 2009-03-10 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / Colon-specific drug delivery systems have attracted increasing attention from the pharmaceutical industry due to their ability of treating intestinal bowel diseases (IBD), which represent a public health problem in several countries. In spite of being considered a quite effective molecule for the treatment of IBD, mesalazine (5-ASA) is rapidly absorbed in the upper gastrointestinal tract and its systemic absorption leads to risks of adverse effects. The aim of this work was to develop a microparticulate system based on xylan and Eudragit? S- 100 (ES100) for colon-specific delivery of 5-ASA and evaluate the interaction between the polymers present in the systems. Additionaly, the physicochemical and rheological properties of xylan were also evaluated. Initially, xylan was extracted from corn cobs and characterized regarding the yield and rheological properties. Afterwards, 10 formulations were prepared in different xylan and ES100 weight ratios by spray-drying the polymer solutions in 0.6N NaOH and phosphate buffer pH 7.4. In addition, 3 formulations consisting of xylan microcapsules were produced by interfacial cross-linking polymerization and coated by ES100 by means of spray-drying in different polymer weight ratios of xylan and ES100. The microparticles were characterized regarding yield, morphology, homogeneity, visual aspect, crystallinity and thermal behavior. The polymer interaction was investigated by infrared spectroscopy. The extracted xylan was presented as a very fine and yellowish powder, with mean particle size smaller than 40μm. Regarding the rheological properties of xylan, they demonstrated that this polymer has a poor flow, low density and high cohesiveness. The microparticles obtained were shown to be spherical and aggregates could not be observed. They were found to present amorphous structure and have a very high thermal stability. The yield varied according to the polymer ratios. Moreover, it was confirmed that the interaction between xylan and ES100 occurs only by means of physical aggregation / Sistemas c?lon-espec?ficos t?m atra?do o interesse da ind?stria farmac?utica devido ? possibilidade de tratarem enfermidades, como as doen?as inflamat?rias intestinais (DII), que compreendem um problema de sa?de p?blica em muitos pa?ses. Apesar de ser considerada uma mol?cula bastante eficiente para o tratamento das DII, a mesalazina (5-ASA) ? rapidamente absorvida no trato gastrintestinal superior e sua absor??o sist?mica leva ? incid?ncia de s?rios efeitos adversos. Este trabalho teve como objetivos produzir um sistema polim?rico microparticulado ? base de xilana e Eudragit? S-100 (ES100) para libera??o c?lon-espec?fica de 5-ASA e avaliar a intera??o entre os pol?meros constituintes do sistema, al?m de aprofundar a caracteriza??o f?sico-qu?mica e tecnol?gica da xilana. A xilana foi extra?da a partir de sabugos de milho e caracterizada quanto ao rendimento, granulometria, cristalinidade, propriedades reol?gicas e comportamento t?rmico. Em seguida, 10 formula??es contendo 5-ASA foram preparadas em diferentes propor??es de xilana e ES100 atrav?s da secagem por aspers?o das solu??es polim?ricas com NaOH 0,6N ou tamp?o-fosfato pH 7,4, como solvente. Al?m disso, 3 formula??es constitu?das de microc?psulas de xilana produzidas por reticula??o polim?rica interfacial foram revestidas por ES100 atrav?s de secagem por aspers?o em diferentes propor??es polim?ricas e empregando-se NaOH 0,6N ou tamp?o-fosfato pH 7,4, como solvente. As micropart?culas foram avaliadas quanto ao rendimento, morfologia, granulometria, homogeneidade, aspecto visual, cristalinidade e comportamento t?rmico. A intera??o entre os pol?meros foi investigada atrav?s da espectroscopia na regi?o do infravermelho e de an?lises t?rmicas. A xilana extra?da apresentou-se como um p? muito fino, com tamanho m?dio inferior a 40μm, e com colora??o opaca levemente amarelada. A avalia??o das propriedades reol?gicas da xilana permitiram a caracteriza??o desse pol?mero, em seu estado original de p?, como um material de baixa densidade, fluxo restrito e bastante coesivo. Foram obtidas micropart?culas esf?ricas e sem presen?a de agregados, com estrutura amorfa, em sua maior parte, e bastate est?veis a temperaturas elevadas. Al?m disso, confirmou-se que a intera??o entre xilana e ES100 ocorre apenas por agrega??o f?sica

Français :<br /><p><br /><p>Cette étude porte sur les structures françaises dites "corrélatives", construites en "autant.autant", "ni.ni", "soit.soit", "plus.plus", "tantôt.tantôt" et "tel.tel", soit des corrélatives "isomorphes". Si ces structures mettent toutes en relation deux termes ou structures, nous montrons ici, par le biais de descriptions sémantique, morphologique et syntaxique, que chacune de ces constructions est également très différente. À partir d’exemples tirés de corpus (français oral et écrit), ce travail ambitionne donc de mettre en évidence les propriétés des structures corrélatives isomorphes, de dresser le bilan des caractéristiques qui les unissent et les distinguent les unes des autres. Il a pour second objectif de questionner la place de la corrélation dans la typologie des modes de liaisons de prédications – c’est-à-dire la possibilité ou non d’assimiler les corrélatives françaises à de la subordination, de la coordination ou encore de la juxtaposition. Une tierce finalité, davantage méthodologico-épistémologique, a trait à l’examen de la façon dont les structures corrélatives isomorphes sont prises en compte respectivement en syntaxe traditionnelle, dans les approches graduelles et en macrosyntaxe (aixoise et fribourgeoise) ;il poursuit consécutivement un objectif plus général, celui de trouver une porte de sortie à l’impasse actuelle en syntaxe, née de l’apparente inconciliabilité des trois approches. <br /><p><br /><p>La réponse à ces trois objectifs nécessite une étude en deux étapes. Dans un premier temps, ce travail s'attarde ainsi sur chacune des six structures corrélatives, mettant en évidence leurs ressemblances et dissemblances tant sémantiques que formelles. Cette première étape offre alors la possibilité d’inscrire le phénomène de la corrélation isomorphe dans le cadre général des liaisons de prédications et de confronter plus spécifiquement les propriétés des structures dites "corrélatives" avec celles de ces autres modes de liaisons dans une les modèles 1) binaires ou ternaires des modes de jonctions propositionnelles (approche traditionnelle), 2) graduels (Foley & Van Valin, Rebuschi, Lehmann) et 3) macrosyntaxiques (écoles d'Aix et de Fribourg).<p><p><br /><p><br /><p><br /><p><p>English :<br /><p><br /><p>This project focuses on the study of so-called “correlative” structures in French that use "autant.autant", "ni.ni", "soit.soit", "plus.plus", "tantôt.tantôt" et "tel.tel", that is to say "isomorphic" correlatives. While all these constructions serve to connect two terms or structures, we shall show, through morphological, syntactic and semantic descriptions, that they each possess distinctive features. Using examples drawn from a corpus (French, oral and written), this project thus aims to establish the properties of isomorphic correlative structures, and to identify the characteristics they share and those that distinguish them from one another. The second aim of this project consists in (re-)examining the place of correlation in the typology of predication linking structures in an effort to determine whether or not French correlatives may be considered as a type of subordination, coordination or even juxtaposition. The third objective, which is methodological and epistemological in nature, will consist in studying how traditional syntax, gradual models and macrosyntax have respectively accounted for isomorphic correlative structures. In this way, we shall attempt to break the current deadlock resulting from the apparent incompatibility of the three approaches.<br /><p><br /><p>To reach these three goals, the study will be organized in two phases. First, the various correlative structures will be scrutinized in order to highlight semantic and formal similarities and dissimilarities. This will allow us to position the phenomenon of isomorphic correlation within the general framework of predication linking, and thereby compare the properties of so-called “correlative” structures with those of other linking structures. In the second phase, we will re-examine the place of correlative structures in the models advanced by traditional syntax, by gradual approaches (Foley & Van Valin, Rebuschi, Lehmann) and macrosyntax (Aix and Fribourg).<p> / Doctorat en Langues et lettres / info:eu-repo/semantics/nonPublished

Casein is the major protein fraction in milk, and its cross-linking has been a topic of scientific interest for many years. Enzymatic cross-linking has huge potential to modify relevant techno-functional properties of casein, whereas non-enzymatic cross-linking occurs naturally during the storage and processing of milk and dairy products. Two size separation techniques were applied for characterisation of these reactions: gel electrophoresis and size exclusion chromatography. This review summarises their separation principles and discusses the outcome of studies on cross-linked casein from the last ~20 years. Both methods, however, show limitations concerning separation range and are applied mainly under denaturing and reducing conditions. In contrast, field flow fractionation has a broad separation range and can be easily applied under native conditions. Although this method has become a powerful tool in polymer and nanoparticle analysis and was used in few studies on casein micelles, it has not yet been applied to investigate cross-linked casein. Finally, the principles and requirements for absolute molar mass determination are reviewed, which will be of increased interest in the future since suitable calibration substances for casein polymers are scarce.

The theme of dissertation is to create the architectural study of a Roman bath and sauna World. Spa are part of a complex aqvapark. There is a defined a part of the aqvapark. Dedicated to recreation and clearing the body. I propose a new open space, allowing penetration of light and air. THe area comprising the impression of kontinuity and at the same time the idea of intimacy. Using simple geometric forms allows capturing the important principles of operation.

Im Jahre 1954 verkündete Indiens erster Premierminister Jawaharlal Nehru, dass Staudämme die “Tempel des modernen Indiens” seien. Ausgehend von der These, dass dieser Aussage eine „developmental imagination“ zugrunde liegt, die bis heute ein auffälliges Merkmal vieler Diskurse zu Großprojekten in Indien ist, und dass die Medien eine wichtige Rolle darin spielen, diese Diskurse zu zeichnen, betrachtet die Dissertation die Frage, wie große Wasserinfrastrukturprojekte in der indischen Medienlandschaft dargestellt werden. Um diese Frage zu beantworten, wird in der Dissertation eine Medienanalyse durchgeführt, bei welcher die Berichterstattung zum Indischen River Linking Projekt (NRLP) und zu zwei Vorhaben, die im Rahmen des NRLP stattfinden (Ken-Betwa und Polavaram), im Fokus stehen. Das 168-Milliarden Dollar teure NRLP Projekt ist das weltweit größte sich im Bau befindliche Wasserprojekt und sieht den Bau vieler Staudämme und Verbindungskanäle vor. Kontrovers debattiert wird das NRLP insbesondere in Bezug auf die hohen ökologischen und sozialen Kosten: Nach einer historischen Einbettung des Themas wird die Medienanalyse anhand einer Auswahl an Zeitungs- und Zeitschriftenartikeln aus dem Zeitraum 2000 bis 2016 durchgeführt. Darüber hinaus beinhaltet die Arbeit ein Kapitel, welches sich auf Feldforschung im Polavaram Staudammgebiet bezieht, um Perspektiven, die ansonsten in Mediendiskursen häufig marginalisiert werden, aufzuzeigen; die der von Umsiedelung betroffenen Communities. Die Dissertation zeigt das Kontinuum der „developmental imaginations“ in Indiens Diskursen zu großen Infrastrukturprojekten auf, weist auf die Machthierarchien hin, die ausschlaggebend dafür sind, wem die Möglichkeit zukommt sich überhaupt an Diskursen zu beteiligen, und hebt politische Narrative hervor, die in dem Kontext eine starke Verbindung zu „Nationbuilding“ oder „Statebuilding“ Diskursen aufweisen. / In 1954 India’s first Prime Minister Jawaharlal Nehru proclaimed dams to be the “temples of modern India”. Based on the theses that this “developmental imagination” so visible in Nehru’s statement continues to be a prominent feature in discourses on large scale infrastructure projects in India until today, and that the media plays an important role in shaping these public discourses, the dissertation considers the question of how large scale water infrastructure schemes are covered within the Indian media landscape. To answer that question, a media analysis is conducted which focuses on the reporting on the Indian National River Linking Project (NRLP) and on two schemes being implemented under the NRLP: The Ken-Betwa and the Polavaram Dam Projects. The 168-billion-dollar NRLP project is the world’s largest water project in the making and includes the construction of several dams. It is designed to connect the majority of Indian rivers to a gigantic water grid. It is controversially debated, especially with regard of ecological and social costs. After a historical embedding of the topic, the media analysis is conducted through a choice of magazines and newspapers in a time period from 2000 until 2016. Furthermore, the dissertation incorporates a chapter based on field work in the Polavaram Dam area in order to shed light on perspectives often marginalised in the media discourses: those of the affected communities. The dissertation reveals the continuum of developmental imaginations in the discourses on India’s large scale infrastructure projects until today, points out how power hierarchies are at work with regard to who is able to participate in the discourses and who is not, and highlights narratives closely linked to ideas of nation- or statebuilding that are used by politicians within the media discourses.

Dans cette thèse, nous développons de nouveaux outils pour relier les dynamiques qualitatives des systèmes hamiltoniens sur des surfaces aux propriétés algèbriques de leurs complexes de Floer - un objet algébrique qui encode l'information sur la façon dont les orbites 1-périodiques d'un système sont reliées par des cylindres satisfaisant une équation différentielle partielle elliptique appelée l'équation de Floer. L'idée principale est de considérer --- pour un hamiltonian \(H \in C^\infty(S^1 \times \Sigma)\) sur une surface symplectique \((\Sigma, \omega)\) --- les graphes des orbites contractiles 1-périodiques de l'isotopie \((\phi^H_t)_{t \in [0,1]}\) comme définissant une tresse \(P^H\) dans \(S^1 \times \Sigma\). En choisissant des capuchons pour chacune de ces orbites 1-périodiques, nous obtenons un objet que nous appelons une tresse encapuchonnée \(\hat{P}^H\), qui est muni d'une fonction d'indexation \(\mu_{CZ}: \hat{P}^H \rightarrow \mathbb{Z}\) obtenue en assignant à chaque brin encapuchonné l'indice de Conley-Zehnder de l'orbite encapuchonnée associée. L'idée est alors de s'interroger sur la relation entre l'information topologique encodée dans la tresse encapuchonnée indexée \((\hat{P}^H,\mu_{CZ})\) et la structure du complexe de Floer \(CF_*(H,J)\) pour une structure presque complexe générique \(J\). À cette fin, nous aurons recours à: un nouvel invariant relatif pour les paires de tresses encapuchonnées que nous appelons le nombre d'enlacement homologique, un cercle d'idées concernant le comportement asymptotique des courbes pseudo-holomorphes développé par Hofer-Wysocki-Zehnder dans leur série d'articles [8], [10], [12] et aussi [11] (ainsi qu'un raffinement supplémentaire dans le cas relatif dû à Siefring dans [32]), et une nouvelle technique en basses dimensions pour la construction de morphismes de continuation de Floer qui ont un comportement prescrit. En conséquence de ces techniques, nous établissons l'existence --- pour des systèmes hamiltoniens génériques sur une surface fermée arbitraire --- de certaines feuilletages singulières spéciaux sur \(S^1 \times \Sigma\) dont le comportement est étroitement lié à la fois à la dynamique sous-jacente et à la structure du complexe de Floer du système. La construction de tels feuilletages dans le cas particulier des pseudo-rotations d'un disque, par des méthodes très différentes des nôtres, a été au coeur des progrès significatifs récents de Bramham dans [3] sur une célèbre question de Katok concernant les systèmes conservatifs de basse dimension et d'entropie nulle. Ces feuilletages fournissent également, pour les systèmes hamiltoniens lisses génériques, une construction Floer-théorique des feuilletages positivement transversaux sur \(\Sigma\) qui ont été construits originellement (pour les homéomorphismes de surface généraux) par Le Calvez à travers d'une extension substantielle de la théorie de Brouwer classique pour les homéomorphismes de surface dans [16]. En plus de fournir un pont géométrique entre la dynamique d'une isotopie hamiltonienne et l'information algébrique contenue dans son complexe de Floer, les techniques développées dans cette thèse permettent également de donner une caractérisation --- purement en termes de la dynamique de l'isotopie hamiltonienne sous-jacente --- des cycles de Floer dans \(CF_*(H,J)\) qui représentent la classe fondamentale de la surface et qui de plus se trouvent dans l'image d'un morphisme de PSS au niveau des chaines. Finalement, ces techniques permettent de définir une nouvelle famille d'invariants d'un système hamiltonien (sur une variété symplectique arbitraire) qui se comporte formellement de manière similaire à une famille bien étudiée de tels invariants connue comme les invariants spectraux de Oh-Schwarz. L'avantage de nos nouveaux invariants est que nous sommes capable de calculer explicitement les plus importants d'entre eux pour des systèmes hamiltoniens génériques sur des surfaces arbitraires, ce uniquement en termes de topologie relative des orbites périodiques du système (avec leurs indices de Conley-Zehnder). Ceci généralise un résultat de Humilière-Le Roux-Seyfaddini dans [13] dans lequel ils ont donné une caractérisation dynamique du principal invariant spectral de Oh-Schwarz dans le cas de systèmes hamiltoniens autonomes sur des surfaces de genre positif. / In this thesis, we develop novel tools for relating the qualitative dynamics of Hamiltonian systems on surfaces to the algebraic properties of their Floer complexes --- an algebraic object which encodes information about the ways in which a system’s 1-periodic orbits are connected by cylinders satisfying an elliptic partial differential equation known as Floer’s equation. The main idea is to consider --- for a generic Hamiltonian \(H \in C^\infty(S^1 \times \Sigma)\) on a symplectic surface \((\Sigma, \omega)\) --- the graphs of the contractible time-1 periodic orbits of the isotopy \((\phi^H_t)_{t \in [0,1]}\) as defining a braid \(P^H\) in \(S^1 \times \Sigma\). Upon choosing cappings for each such 1-periodic orbit, we obtain an object which we term a capped braid \(\hat{P}^H\), which comes equipped with an indexing function \(\mu_{CZ}: \hat{P}^H \rightarrow \mathbb{Z}\) given by assigning to each (capped) strand of the braid the Conley-Zehnder index of the associated capped orbit. The idea is then to enquire into the relation of the topological information encoded in the indexed capped braid \((\hat{P}^H,\mu_{CZ})\) and the structure of the Floer complex \(CF_*(H,J)\) for a generic \(J\). The main tools employed to this end are: a novel relative invariant for pairs of capped braids which we term the homological linking number, a circle of ideas about the asymptotic behaviour of pseudo-holomorphic curves pioneered by Hofer-Wysocki-Zehnder in their series of papers [8], [10], [12] as well as in [11] (along with a further refinement to the relative case by Siefring in [32]), and a novel technique for the construction of regular Floer continuation maps in low-dimensions having prescribed behaviour. As a consequence of these techniques, we establish the existence --- for generic Hamiltonian systems on an arbitrary closed surface \(\Sigma\) --- of certain special singular foliations on \(S^1 \times \Sigma\) whose behaviour is tightly related to both the underlying dynamics, as well as the structure of the system’s Floer complex. The construction of such foliations (by very different methods) in the particular case of pseudo-rotations on a disk was the crux of Bramham’s recent significant progress in [3] on a famous question due to Katok about low-dimensional conservative systems with vanishing entropy. These foliations also provide, for generic smooth Hamiltonian systems, 7 a Floer-theoretic construction of the positively transverse foliations on \(\Sigma\) which were originally constructed (for general surface homeomorphisms) by Le Calvez through a significant extension of classical Brouwer theory for surface homeomorphisms in [16]. In addition to providing a geometric bridge between the dynamics of a Hamiltonian isotopy and the algebraic information contained in its associated Floer complex, the techniques developed in this dissertation also permit a characterization --- purely in terms of the dynamics of the underlying Hamiltonian isotopy --- of those Floer cycles in \(CF_*(H,J)\) which represent the fundamental class of the surface, and which moreover lie in the image of some chain-level PSS map. Finally, these techniques permit the definition of a new family of invariants of a Hamiltonian system (on an arbitrary symplectic manifold) which behave formally similarly to a well-studied family of such invariants known as ‘Oh-Schwarz spectral invariants’ (and which agree with them in all known cases). The advantage of these novel spectral invariants is that we are able to explicitly compute the most important of these spectral invariants for generic Hamiltonian systems on arbitrary surfaces purely in terms of the relative topology of the system’s periodic orbits (together with their Conley-Zehnder indices). This considerably generalizes a result by Humilière-Le Roux-Seyfaddini in [13] in which they gave a dynamical characterization of the main Oh-Schwarz spectral invariant in the case of time-independent Hamiltonian systems on surfaces with positive genus.

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