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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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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.
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Showing 861 to 867 of 867 (0.032 seconds)Spelling suggestions: "subject:"boundaries"" "subject:"houndaries""
| 861 |
CUDA-based Scientific Computing / Tools and Selected ApplicationsKramer, Stephan Christoph 22 November 2012 (has links)
No description available.
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| 862 |
Inside and Outside Peace and Prosperity: Post-Conflict Cultural Spaces in Rwanda and Northern IrelandArnold, Jobb 02 June 2014 (has links)
In post-conflict settings real and imagined boundaries do a great deal to determine who is inside and who is outside of state-based narratives of peace and prosperity. Based on case studies in Rwanda and Northern Ireland, I provide an analysis of the post-conflict periods and the impact of neoliberal-styled governance on the dynamics of power. I argue that as power shifted, ‘peace’ also entailed a general social pacification, and prosperity equated to greater private profit. However, top-down social engineering has not contained the entire field of social struggle. I examine micro-level interventions taking place on the margins of mainstream discourse that trouble the moralizing state-narratives that seek to legitimate structural violence. Such spaces facilitate alternative values and practices that contribute to sustained social and cultural resilience, as well as forms of resistance.
Post-conflict Rwanda and Northern Ireland have been impacted by both coercive and consensual forms of social engineering. In Rwanda, state-based framework laws and forceful regimes of local implementation rely on stark contingencies of reward and punishment to shape and control behaviour in the public sphere. In Northern Ireland, the power-sharing structure of the Belfast Agreement has reinforced ethnic politics, while depoliticizing and instrumentalizing civil society in support of its neoliberal policies.
I present ethnographic research and interviews conducted with community organizations in Northern Ireland (Ikon) and Rwanda (Student Association of Genocide Survivors - AERG) that demonstrates how alternative discourses and practices are emerging in the cracks of these top-down systems. I explore Ikon’s use of creative performances and radical theology to create socially resonant cultural spaces that function as temporary autonomous zones. These TAZs unsettle aspects of individual identity while intentionally seeking to destabilize mainstream power dynamics. Unlike Ikon, AERG faces greater public scrutiny and higher political stakes. They demonstrate an adherence to the dominant social script in the public sphere, while exhibiting micro- level agency through trauma healing, and material support in private day-to-day practices. AERG’s performance in the public sphere creates temporary spaces of encounter that exceed the boundaries of official discourse, making their alternative presence felt while remaining illegible to the dominant surveillance frameworks. / Thesis (Ph.D, Cultural Studies) -- Queen's University, 2014-06-02 11:02:09.033
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| 863 |
Migration, gender and urbanisation in JohannesburgKihato, Caroline Wanjiku 08 1900 (has links)
This thesis interrogates the dynamics of urbanisation, gender and migration in
contemporary Johannesburg through the voices and images of migrant women
from the rest of the African continent, now living in Johannesburg. By revealing
the lives of a population group that is often hidden from view, it provides details
of women’s migration to Johannesburg, and their everyday encounters in the
host city. Using these experiences, it sheds light on contemporary migration and
urbanisation processes on the continent, expanding our knowledge of the contours
of power that shape urban life in Johannesburg and elsewhere.
Using the metaphor of the “border” or “borderlands” this thesis explores
how women negotiate, cross and remain “in between” the multiple physical,
social and imagined borders they encounter in the city. It finds that analyses that
read the city through class relationships and capital accumulation do not give
adequate weight to the multiple identities and forms of solidarity that exist in
cities. Women’s narratives reveal that while their class is an important identity,
other identities such as ethnicity, nationality and gender also powerfully shape
solidarity and modes of belonging in the city. Moreover, state-centric governance
frameworks that have dominated urban policy and scholarly work on the
continent are often blinded to the ways in which urban dweller’s actions shift our
understanding of the nature and character of state power. Women’s encounters
with the state reveal the multiple regimes of power that constitute the city, and the
ways in which these subvert, fragment, and yet at times reinforce state power in
unpredictable ways.
The epistemological approach and findings of this research bring to the
fore broader questions around the paradigmatic lenses used to read, interpret and
understand African cities. Dominant paradigms tend to draw on western models
of cities in ways that undermine African cities’ empirical realities and theoretical
potential. For as long as scholars and policy makers fail to see African urbanity in
its own terms rather than in relation to how cities elsewhere have evolved, we will
continue to miss critical socio-political and economic dynamics that are shaping
urbanisation in the twenty first century. / Sociology / D. Phil. (Sociology))
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| 864 |
Darstellung und Verwendung von Nucleolipiden zur Lipophilisierung von Nucleinsäuren sowie deren Wechselwirkung und Duplex-Bildung an horizontalen Lipid-Bilayers und Phasengrenzen zur Entwicklung einer neuartigen RNA/DNA-Analytik / Synthesis and Application of Nucleolipids for the Lipophilization of Nucleic Acids and Their Interaction and Duplex Formation at Horizontal Lipid-Bilayers and Phase Boundaries for the Development of a Novel RNA/DNA AnalyticsWerz, Emma 17 February 2016 (has links)
Ziel der vorgestellten Arbeit war die Synthese von Nucleolipiden zur Lipophilisierung von Oligonucleotiden sowie deren Untersuchung im Hinblick auf ihre Wechselwirkung und Duplex-Bildung an horizontalen Lipidmembranen und verschiedenen Phasengrenzen zur Entwicklung eines neuartigen Bio-Chips für die RNA/DNA-Analyse.
Mit der Synthese N(3)-prenylierter und 2’,3’-O-ketalisierter Pyrimidinbasen Uridin und Methyluridin wurden Nucleolipid-Bausteine dargestellt, die auch als terminale Kopfgruppen eines Oligonucleotid-Dodecamers den lipophilen Charakter dieser Oligonucleotid-Sequenz erhöhten. Für den Einsatz solcher LONs (Lipo-Oligonucleotide) in einer vereinfachten RNA/DNA-Analytik wurde eine Vielzahl von Lipo-Oligonucleotiden mit diversen Nucleolipid-Kopfgruppen synthetisiert und auf ihr Einlagerungsverhalten in künstliche Lipid-Bilayer untersucht. Fluoreszenz-spektroskopische Untersuchungen zeigten, dass alle Lipo-Oligonucleotide in der Lage sind, sich in künstliche Lipid-Bilayer einzulagern. Abhängig von der Struktur, der Länge und der Anzahl der C-Atom-Ketten dieser lipophilen Anker-Bausteine wurden die Geschwindigkeit und die Festigkeit der Verankerung im Lipid-Bilayer beeinflusst.
Des Weiteren wurde die Hybridisierung von LONs mit komplementären Oligomeren an Lipidmembranen untersucht. Es konnte gezeigt werden, dass die im Bilayer verankerten Lipo-Oligonucleotide mit komplementären Oligomeren DNA-Duplexe bilden. Die hybridisierte DNA wurde nicht nur über einen kovalent gebundenen Cy5-Fluorophor am Gegenstrang nachgewiesen, sondern auch über den DNA-Interkalator SYBR Green I (SG).
Am Beispiel von zwei Lipo-Oligonucleotiden (LON 20 und 23), die sich schnell und fest in der Bilayermembran verankern, konnte eine spontane Akkumulation dieser LONs an CHCl3/H2O sowie H2O/n-Decan Grenzflächen direkt nach der Probenzugabe beobachtet werden. Diese und andere Ergebnisse stützen den Einsatz von Lipo-Oligonucleotiden als Ziel-Oligomere in einem neuartigen RNA/DNA-Nachweisverfahren an Phasengrenzen.
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| 865 |
Korngrenzsegregation in Silber-Nickel und Kupfer-Wismut Legierungen / Grain Boundary Segregation in Silver-Nickel and Copper-Bismuth AlloysWolde-Giorgis, Daniel 25 August 2005 (has links)
No description available.
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| 866 |
Simulace toroidních cívek v Ansoft Maxwell 3D / Simulation of toroid coils in Ansoft Maxwell 3DDaněk, Michal January 2009 (has links)
The master thesis is focused on the simulation of the toroid coils in Ansoft Maxwell 3D software, which uses finite element method for electromagnetic field simulation. Firstly the process creation of the geometric model toroid coil with seventy-five threaded is presented. It is necessary to debug this model and prepare it for the mesh generation. Physical properties are assign to this model and it gives rise to the physical model. We will set boundaries, excitation current, core material, winding material and the parameters for the mesh generations. New material Kashke K4000 will be created in the materials library and subsequently we will define its BH curve on the basis of datasheet. Analysis is made in two modes. Direct currents (7,5A; 10A; 15A; 20A; 25A) and (non)linear materials are used in magnetostatic solution. Toroid coil is excited by current pulse in transient solution. In Ansoft Maxwell Circuit editor a source which generates current pulse will be created. This excitation will be assigned to the toroid coil as an extern source through a terminal. Core material is linear in the case of transient analysis, because Ansoft Maxwell 3D doesn´t allow to use nonlinear material in this solution. Settings are different in transient and in magnetostatic analysis. End time and time step are entered to solve this task in transient analysis. Time points are entered too. Flux density and electromagnetic field strength are calculated in these time points and later it will be possible to view the results. Calculated fields are shown as the pictures in this thesis. The procedure how to use a field calculator in the postprocessing is given as well. The achievements are summarized in the conclusion.
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| 867 |
Kwasizabantu : a spatial development framework and detail designWentzel, Dorithea Maria 06 May 2009 (has links)
The aim of this thesis is to analyse and interpret the existent and future needs of the people and environment of the mission station, Kwasizabantu,to ensure settlement growth that will enhance the social, economical and environmental aspects of the settlement. This will result in a development framework of the whole site, a master plan for the lifespan of the settlement and detailed design of the heart of the settlement. / Dissertation (ML(Prof))--University of Pretoria, 2009. / Architecture / unrestricted
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