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  • 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.
61

Fractional Prefigurations : Science Fiction, Utopia, and Narrative Form

2015 June 1900 (has links)
The literary utopia is often accused of being an outmoded genre, a graveyard for failed social movements. However, utopian literature is a surprisingly resilient genre, evolving from the static, descriptive anatomies of the Renaissance utopias to the novelized utopian romances of the late nineteenth century and the self-reflexive critical utopias of the 1970s. The literary utopia adapts to the needs of the moment: what form(s) best represent the fears and desires of our current historical period? In this dissertation I perform a close reading of three exemplary texts: John Brunner’s Stand on Zanzibar (1968), Ursula K. Le Guin’s Always Coming Home (1985), and David Mitchell’s Cloud Atlas (2004). While I address topics specific to each text, my main focus is on the texts’ depictions of utopia and their spatialized narrative forms. In Stand on Zanzibar Brunner locates the utopian impulse in three registers—the political/bureaucratic, the technical/scientific, and the human(e)—and explores how their interplay constitutes the utopian space. In Always Coming Home Le Guin renovates the classical literary utopia, problematizing its uncritical advocacy of the “Judaeo-Christian-Rationalist-West” but preserving much of the older utopia’s form. In Cloud Atlas the networked narrative structure reflects and enables the heterogeneous, non-hierarchical, and processual utopian communities depicted in the novel. In these science fictional works the spatialized techniques of juxtaposition, discontinuity, and collage —commonly associated with a loss of historical depth and difference—are used to create utopian spaces founded on contingency and human choice. I contend that science fiction is a historical genre, one that is invested in representing societies as contingent historical totalities. Science fiction’s generic tendencies modify the context that a spatialized narrative form functions in, and in changing the context changes its effects. By utilizing a spatialized narrative form to embody a contingent practice, Brunner, Le Guin, and Mitchell cast the future—and the present—as historical, as something that can be acted upon and changed: they have provided us with strategies for envisioning better futures and, potentially, for mobilizing our visions of the future for positive change in the present.
62

Is gear-based management of herbivorous fish a viable tool to prevent or reverse phase shifts in coral reefs? : Linking resilience theory to practice

Dilasser, Quentin January 2011 (has links)
Herbivorous reef fish are a key functional group for the ecological resilience of coral reefs. Asthey feed on algae, a major resource competitor of coral polyps, they can prevent and reversecoral-macroalgal phase shifts. The resilience of the reefs against such phase shifts is given bythe ability of herbivores to keep the system in a cropped state from filamentous algae or bytheir capacity to feed on macroalgae. Most of the management plans that aim to protect coralreefs have been focusing on the establishment of marine protected areas or no-take areas wherefishing activities are strictly restricted or prohibited. In low-income countries, such managedareas can be difficult to accept from a fisher´s perspective and lack of money also tends to leadto limited surveillance capabilities and lowered compliance. These challenges are important toaddress when managing small-scale fisheries and where fish are considered as both, amarketable commodity and a subsistence good.A perhaps less contentious strategy for fishers is gear-based management, where the use offishing gears that are detrimental to coral reef resilience are restricted and at the same timegears that do not compromise resilience are promoted. This study aims to investigate how ninedifferent fishing gears (i.e. different lines, traps, nets and spears) used in the coral reef fisheriesof Zanzibar (Tanzania) capture herbivorous reef fish that can prevent (preventers) or reverse(reversers) coral-macroalgal phase shifts. Two interesting findings emerged from the study.First, different fishing gears had different impacts on these two functional groups where lines,large traps and seine nets fisheries had most impacts. Second, there were monsoonaldifferences in the catch of preventers and reversers. These findings are discussed in relation toi) similar studies conducted in different reef environments and ii) the feasibility of gear-basedmanagement in Zanzibar.
63

Continuitiy and change in Zanzibari Taarab performance and poetry

Aiello Traoré, Flavia January 2004 (has links)
Taarab in contemporary Zanzibar currently experiences great changes since the Nineties with the emerging and growing success of modern taarab. This has shocked the fans of the traditional style (taarab asilia) with musical and instrumental innovations, including powerful amplifiers and more danceable rhythms, but also textual innovations, using in their songs, commonly called mipasho, a sort of language and poetical imagery very open and non-disguised (Khamis 2002: 200). The perception of a split between the two musical and poetical styles is widely shared among the artists and fans of traditional taarab, but it actually tends to simplify the dynamics of continuity and change of this art deeply rooted within the social and political life of Zanzibar islands.
64

L`influence indienne dans l`architecture Swahili

Pradines, Stéphane 09 August 2012 (has links)
Indian Influence in Swahili architecture. The goal of this article is to establish a synthesis of current knowledge on the contribution of the Indian world in Swahili architecture, from the islamisation to the sultanate of Zanzibar. By Indian world, we designate Pakistan and modern India, more precisely coastal regions of Sind, Gujerat and Deccan. Indians have participated at the creation of Swahili urbanism since the eighth century and have acted on the evolution of this architecture. To apprehend the role of India in the Swahili architecture, we will divide our comment in three areas: religious, civilian and military. With an historical introduction to the relationships between Africa and India.
65

The place of Zanzibar in British policy in East Africa, 1870-1890.

Baillie, Raymond Joslin. January 1966 (has links)
No description available.
66

Promotion and Protection of Human Rights in the context of Corporate Social Respnsibility by hotels in Zanzibar. : A Minor Field Study

Pihlstål, Melinda January 2023 (has links)
This minor field study is an explorative analysis of the promotion/protection of human rights in the context of corporate social responsibility by two hotels in Zanzibar. The aim of the thesis is to analyze the motivations of the CSR practices of two hotels in Zanzibar and if the CSR practices can be used to promote/protect stakeholders human rights. The theory used to support the analysis is the stakeholder theory to demonstrate the responsibilities corporations have towards their stakeholders. The primary data is collected through interviews with one manager from each hotel to examine the motivations for the CSR, and with one stakeholder related to each hotel to examine the effects in terms of human rights. The findings indicate that the CSR practices are mostly motivated through altruistic/philanthropic reasons within the social/environmental category and that the three human rights examined have successfully been promoted and protected using the hotels CSR practices.
67

Writing the Indian Ocean in selected fiction by Joseph Conrad, Amitav Ghosh, Abdulrazak Gurnah and Lindsey Collen

Lavery, Charne January 2014 (has links)
Tracked and inscribed across the centuries by traders, pilgrims and imperial competitors, the Indian Ocean is written into literature in English by Joseph Conrad, and later by selected novelists from the region. As this thesis suggests, the Indian Ocean is imagined as a space of littoral interconnections, nomadic cosmopolitanisms, ancient networks of trade and contemporary networks of cooperation and crime. This thesis considers selected fiction written in English from or about the Indian Ocean—from the particular culture around its shores, and about the interconnections among its port cities. It focuses on Conrad, alongside Amitav Ghosh, Abdulrazak Gurnah and Lindsey Collen, whose work in many ways captures the geographical scope of the Indian Ocean: India, East Africa and a mid-point, Mauritius. Conrad’s work is examined as a foundational text for writing of the space, while the later writers, in turn, proleptically suggest a rereading of Conrad’s oeuvre through an oceanic lens. Alongside their diverse interests and emphases, the authors considered in this thesis write the Indian Ocean as a space in and through which to represent and interrogate historical gaps, the ethics and aesthetics of heterogeneity, and alternative geographies. The Indian Ocean allows the authors to write with empire at a distance, to subvert Eurocentric narratives and to explore the space as paradigmatic of widely connected human relations. In turn, they provide a longer imaginative history and an alternative cognitive map to imposed imperial and national boundaries. The fiction in this way brings the Indian Ocean into being, not only its borders and networks, but also its vivid, sensuous, storied world. The authors considered invoke and evoke the Indian Ocean as a representational space—producing imaginative depth that feeds into and shapes wider cultural, including historical, figurations.
68

Humans and Seagrasses in East Africa : A social-ecological systems approach

de la Torre-Castro, Maricela January 2006 (has links)
<p>The present study is one of the first attempts to analyze the societal importance of seagrasses (marine flowering plants) from a Natural Resource Management perspective, using a social-ecological systems (SES) approach. The interdisciplinary study takes place in East Africa (Western Indian Ocean, WIO) and includes in-depth studies in Chwaka Bay, Zanzibar, Tanzania. Natural and social sciences methods were used. The results are presented in six articles, showing that seagrass ecosystems are rich in seagrass species (13) and form an important part of the SES within the tropical seascape of the WIO. Seagrasses provide livelihoods opportunities and basic animal protein, in from of seagrass associated fish e.g. Siganidae and Scaridae. Research, management and education initiatives are, however, nearly non-existent. In Chwaka Bay, the goods and ecosystem services associated with the meadows and also appreciated by locals were fishing and collection grounds as well as substrate for seaweed cultivation. Seagrasses are used as medicines and fertilizers and associated with different beliefs and values. Dema (basket trap) fishery showed clear links to seagrass beds and provided the highest gross income per capita of all economic activities. All showing that the meadows provide social-ecological resilience. Drag-net fishery seems to damage the meadows. Two ecological studies show that artisanal seaweed farming of red algae, mainly done by women and pictured as sustainable in the WIO, has a thinning effect on seagrass beds, reduces associated macrofauna, affects sediments, changes fish catch composition and reduces diversity. Furthermore, it has a negative effect on i.a. women’s health. The two last papers are institutional analyses of the human-seagrass relationship. A broad approach was used to analyze regulative, normative and cultural-cognitive institutions. Cooperation and conflict take place between different institutions, interacting with their slow or fast moving characteristics, and are thus fundamental in directing the system into sustainable/unsustainable paths. Ecological knowledge was heterogeneous and situated. Due to the abundance of resources and high internal control, the SES seems to be entangled in a rigidity trap with the risk of falling into a poverty trap. Regulations were found insufficient to understand SES dynamics. “Well” designed organizational structures for management were found insufficient for “good” institutional performance. The dynamics between individuals embedded in different social and cultural structures showed to be crucial. Bwana Dikos, monitoring officials, placed in villages or landing sites in Zanzibar experienced four dilemmas – kinship, loyalty, poverty and control – which decrease efficiency and affect resilience. Mismatches between institutions themselves, and between institutions and cognitive capacities were identified. Some important practical implications are the need to include seagrass meadows in management and educational plans, addressing a seascape perspective, livelihood diversification, subsistence value, impacts, social-ecological resilience, and a broad institutional approach.</p>
69

Genetic subtypes in unicellular intestinal parasites with special focus on Blastocystis

Forsell, Joakim January 2017 (has links)
The development of molecular tools for detection and typing of unicellular intestinal parasites has revealed genetic diversities in species that were previously considered as distinct entities. Of great importance is the genetic distinction found between the pathogenic Entamoeba histolytica and the non-pathogenic Entamoeba dispar, two morphologically indistinguishable species. Blastocystis sp. is a ubiquitous intestinal parasite with unsettled pathogenicity. Molecular studies of Blastocystis sp. have identified 17 genetic subtypes, named ST1-17. Genetically, these subtypes could be considered as different species, but it is largely unknown what phenotypic or pathogenic differences exist between them. This thesis explores molecular methods for detection and genetic subtyping of unicellular intestinal parasites, with special focus on Blastocystis. We found that PCR-based methods were highly sensitive for detection of unicellular intestinal parasites, but could be partially or completely inhibited by substances present in faeces. A sample transport medium containing guanidinium thiocyanate was shown to limit the occurrence of PCR inhibition. The prevalence of Blastocystis in Swedish university students was over 40%, which is markedly higher than what was previously estimated. Blastocystis ST3 and ST4 were the two most commonly found Blastocystis subtypes in Sweden, which is similar to results from other European countries. Blastocystis sp. and Giardia intestinalis were both commonly detected in Zanzibar, Tanzania, each with a prevalence exceeding 50%. Blastocystis ST1, ST2, and ST3 were common, but ST4 was absent. While G. intestinalis was most common in the ages 2-5 years, the prevalence of Blastocystis increased with increasing age, at least up to young adulthood. We found no statistical association between diarrhoea and Blastocystis sp., specific Blastocystis subtype or G. intestinalis. Metagenomic sequencing of faecal samples from Swedes revealed that Blastocystis was associated with high intestinal bacterial genus richness, possibly signifying gastrointestinal health. Blastocystis was also positively associated with the bacterial genera Sporolactobacillus and Candidatus Carsonella, and negatively associated with the genus Bacteroides. Blastocystis ST4 was shown to have limited intra-subtype genetic diversity and limited geographic spread. ST4 was also found to be the major driver behind the positive association between Blastocystis and bacterial genus richness and the negative association with Bacteroides.
70

Anthropogenic Disturbances and Shifts in Tropical Seagrass Ecosystems

Eklöf, Johan S. January 2008 (has links)
<p>Seagrasses constitute the basis for diverse and productive ecosystems worldwide. In East Africa, they provide important ecosystem services (e.g. fisheries) but are potentially threatened by increasing resource use and lack of enforced management regulations. The major aim of this PhD thesis was to investigate effects of anthropogenic distur-bances, primarily seaweed farming and coastal fishery, in East African seagrass beds. Seaweed farming, often depicted as a sustainable form of aquaculture, had short- and long-term effects on seagrass growth and abundance that cascaded up through the food web to the level of fishery catches. The coastal fishery, a major subsistence activity in the region, can by removing urchin predators indirectly increase densities of the sea urchin <i>Tripneustes gratilla</i>, which has overgrazed seagrasses in several areas. A study using simulated grazing showed that high magnitude leaf removal – typical of grazing urchins – affected seagrasses more than low magnitude removal, typical of fish grazing. Different responses in two co-occurring seagrass species furthermore indicate that high seagrass diversity in tropical seagrass beds could buffer overgrazing effects in the long run. Finally, a literature synthesis suggests that anthropogenic disturbances could drive shifts in seagrass ecosystems to an array of alternative regimes dominated by other or-ganisms (macroalgae, bivalves, burrowing shrimp, polychaetes, etc.). The formation of novel feedback mechanisms makes these regimes resilient to disturbances like seagrass recovery and transplantation projects. Overall, this suggests that resource use activities linked to seagrasses can have large-scale implications if the scale exceeds critical levels. This emphasizes the need for holistic and adaptive management at the seascape level, specifically involving improved techniques for seaweed farming and fisheries, protection of keystone species, and ecosystem-based management approaches.</p>

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