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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.
91

Predictor variables and the mediating effect of organisational levers and capabilities on organisational fitness in Zimbabwe's volatile environment

Sibindi, Ntandoyenkosi January 2017 (has links)
Thesis presented for the Degree of Doctor of Philosophy (Business Science, Management) in the Faculty of Commerce, Law and Management at the University of the Witwatersrand, Johannesburg, February 2017 / The business environment in the twentieth and twenty-first centuries is driven by forces that have changed the industry landscape. These forces demand a new approach in management systems that ensure organisational survival and growth. Traditional approaches based on performance strategies in dealing with business environmental changes are proving to be limited. For organisations to address these shifts, organisational fitness has assumed a new intensified prominence in both organisational and management circles. Organisational fitness is conseptualised as the ability of the organisation to alignment to its environment to learn, and to build on organisational capabilities. What is evident from both management and organisational fields is the dearth of literature on organisational fitness. This dearth of literature has been attributed to the fact that organisational fitness and organisational performance are used interchangeably by authors. What seems unclear in the emerging stream of research on organisational fitness is the nature of variables that predict and mediate the production of organisational fitness. Furthermore, a noticeable feature of the literature that deals with organisational fitness is that it is drawn from stable environments. No doubt, the nature and scope of organisational fitness conceptualised in a volatile socio-economic environment differs considerably from that which is conceptualised in relatively stable environments. Based on existing literature, this study investigated the relationship among organisational size, organisational learning, organisational structure (predictor variables), organisational capabilities, organisational levers (mediating variables) and organisational fitness (outcome variable). In order to establish these relationships, an empirical study was conducted using public firms that are listed on the Zimbabwe Stock Exchange. A theoretical model portraying the relationships among the investigated constructs was developed and a number of propositions were formulated based on the theoretical model of the study. The study employed a survey research design using a quantitative research strategy. Data were collected from a non-probability and probability sample of 277 managers. A standardised measurement instrument consisting of all the variables under investigation was used and administered personally through officials of the human resources departments of the participating organisations. The hypothesised relationships were empirically tested using various statistical methods. Reliability analyses were conducted on all the measurement scales and adequate reliability was established. The content and structure of the measured constructs were investigated by means of exploratory factor analysis. To test the relationship among variables, structural equation modelling was used. The exploratory research through the literature review considered the theoretical and conceptual differences, and the relationship between organisational performance and organisational fitness. It was established that organisational fitness plays a preparatory role that enables organisations to perform. The relationship between organisational fitness and organisational performance is largely reciprocal, as organisational performance emits feedback that enables organisational learning and informs the fitness process in its strategic alignment and organisational capabilities building roles. An organisational performance-fitness model was developed to describe the relationship between the two constructs. The empirical research of this study established that predictor variables of organisational fitness from the existing literature (i.e., organisational size, organisational learning and organisational structure) do not predict organisational fitness in a volatile environment such as Zimbabwe. The mediating effects of organisational capabilities and organisational levers were also not confirmed by the research. The research confirmed a combined mediating effect of organisational capabilities and levers on the relationship between organisational structure and fitness. The research established interesting directions in the relationships between organisational size and organisational structure, organisational levers and organisational structure, organisational capabilities and organisational levers, organisational learning and organisational levers, and organisational capabilities and organisational fitness. The findings of the present study represent an incremental and meaningful contribution to the existing literature on organisational fitness, particularly in a volatile environment. The study also provides practical implications that could assist organisational managers to design organisational structures that will foster organisational learning and develop capabilities that will assist in the alignment of organisations to the operating environment in order to achieve fitness. The adoption of a hybrid organisational structure that is both mechanistic and organic in nature will enable organisations to handle the volatile environment in a way that will foster organisational learning and create much-needed organisational capabilities. The limitations of this research will trigger a scholarly interest in organisational fitness and will serve as a guideline for future research. / XL2018
92

Geochronology and evolution of the Magondi Belt

Glynn, Sarah Maeve January 2017 (has links)
A thesis submitted to the Faculty of Science at the University of the Witwatersrand, in fulfilment of the requirements for the degree of Doctor of Philosophy in Geology. Johannesburg 2017. / The Magondi Belt is a NE-trending Palaeoproterozoic mobile belt, composed of a succession of supracrustal metasediments and minor metavolcanics that is subdivided into the Deweras, Lomagundi and Piriwiri Groups. The Magondi Belt is located in north-west Zimbabwe and is bounded on its eastern flank by the Archaean Zimbabwe Craton and the Pan-African Zambezi Belt to the north. A connection between the Superior and Zimbabwe cratons has previously been made based on similarly aged dyke swarms across the two cratons. This matching magmatic barcode implies that the Superior and Zimbabwe cratons rifted away from one another circa 2.26 Ga based on the ages obtained for the Deweras lavas and the Chimbadzi Hill mafic intrusion. It was into this continental rift margin that the Magondi Supergroup sediments were deposited. The majority of the detrital and xenocrystic zircon ages from the Deweras Group are Archaean (2.86 to 2.63 Ga, with some inherited grains as old as 3.34 Ga); although a maximum depositional age of circa 2.29 Ga for the Deweras Group sedimentary rocks has been determined. Unconformably overlying these sediments, within an environment gradually transitioning from a passive margin into a back-arc basin environment, is the Lomagundi Group. These shallow marine sediments are then followed by those of the Piriwiri Group, deposited within a deeper water environment. Deposition of these two groups is constrained between 2.20 and 2.16 Ga, but may have continued up until the termination of the Magondi orogeny circa 1.99 Ga. According to the currently accepted model, the Magondi orogeny is the result of the Zimbabwe Craton colliding with an unknown continental mass, “Terra Incognita”, resulting in the formation of a Palaeoproterozoic Andean-type magmatic arc along the western margin of the Zimbabwe Craton (the arc is typified by the 2.06 - 2.02 Ga granites and gneisses of the Dete-Kamativi Inlier), which was subsequently thrust over the margin of the Zimbabwe Craton, the consequence of which was a Himalayan-style collision that resulted in high-grade metamorphism and the formation of collisional granitoids (e.g. the Hurungwe Granite) circa 1.99 Ga ago. It has also been established that the Dete-Kamativi Inlier, which flanks the western margin of the Zimbabwe Craton, is an extension of the Magondi Belt. Detrital zircons from paragneisses of the Malaputese Formation have ages ranging from 2.8 to 2.5 Ga, with the youngest grains constraining the maximum depositional age to be around 2.3 Ga. Thus, in terms of age and lithology, the correlation of the Malaputese Formation with the Deweras Group (maximum age of 2.29 Ga) is permissible. A south westward extension of 2.06 - 2.02 Ga granitoids – emplaced during the Magondi orogeny – is indicated by a number of localities in north-eastern Botswana and is believed to also be related to the Palaeoproterozoic magmatic arc. This study has recorded the first evidence of Archaean-aged basement within the Dete-Kamativi Inlier. Two orthogneisses with ages of 2.76 and 2.69 Ga provide strong evidence to suggest that the western margin of the Zimbabwe Craton may extend further to the west than previously recognised. It has also been confirmed, based on the recurrence of ~2.64 Ga aged zircons, in addition to older inherited grains ranging from 3.34 to 2.72 Ga, that the crust below the Magondi Belt is Archaean in age. This is not so, however, for the high-grade gneisses in the northern reaches of the Magondi Belt. It has been previously suggested that these supposed basement granites and gneisses represent an Archaean orogeny, but they are in fact Palaeoproterozoic in age, as represented by the syn-to-post-tectonic 2.02 Ga Hurungwe orthogneiss and the 1.95 Ga Kariba Granite. Additionally, a second, 1.96 Ga, orthogneiss contains zircons with younger metamorphic overgrowth rims that are Pan-African in age (545 Ma) and are attributed to the collision between the Kalahari and Congo cratons in the Neoproterozoic. It is therefore apparent that there is not enough evidence to support the existence of an Archaean “Hurungwe orogeny”. The Magondi orogeny was the heat source for a widespread mineralisation and metamorphic event between 2.15 and 2.03 Ga, based on titanite and apatite ages from samples of the Archaean Copper King and Copper Queen Domes within the Magondi Belt. There is also evidence of a second, younger, mineralisation event, which primarily affected both the Dete-Kamativi Inlier and the Choma-Kalomo Block (south east Zambia). U-Pb data on columbite-tantalite grains (corroborated by 40Ar-39Ar dating of mica separates) from tin-bearing pegmatites within both the Choma-Kalomo Block and the Dete-Kamativi Inlier indicates that mineralisation occurred simultaneously within these two terranes between 1.06 and 0.98 Ga. The similarities (particularly with regards to mineralisation), between the Choma-Kalomo Block and the Dete-Kamativi Inlier imply that these two terranes had a shared history, potentially as far back as the Palaeoproterozoic, but were certainly juxtaposed by 1.06 Ga when the pegmatites were emplaced. The previously undated metasediments of the Choma-Kalomo Block have revealed an abundant Palaeoproterozoic component (2.04 - 1.86 Ga), contradicting the prevailing understanding that the Choma-Kalomo Block is solely Mesoproterozoic in age (on account of the granitoids, which were previously dated at 1.37 and 1.18 Ga). The Choma-Kalomo Block was also thought to constitute an exotic terrane with respect to the neighbouring Dete-Kamativi Inlier and Archaean Zimbabwe Craton. Based on the geochronology presented here, a new model is proposed whereby the thinner lithosphere beneath the Choma-Kalomo Block is either a primary feature or one that resulted from subduction erosion and delamination processes associated with the formation of multiple continental margin magmatic arcs. / MT 2017
93

The impact of ideology on Zimbabwe's foreign relations (1980-1987)

Gregory, Christopher Ivan 22 January 2015 (has links)
No description available.
94

Gender-based violence and unintended pregnancy in Zimbabwe.

Barkley, Aletia 25 July 2013 (has links)
Background: This study examined the association between gender-based violence and unintended pregnancy in Zimbabwe. Various studies have identified factors associated with unintended pregnancy but the role of gender-based violence in unintended pregnancy has not been fully investigated. Gender-based violence is identified as a global public health concern and has reproductive health consequences. METHODS: This study used the Zimbabwe Demographic and Health Survey (ZDHS) of 2005/ 2006 to explore the relationship between gender-based violence and unintended pregnancy. A total of 1 516 women were included in ZDHS. For the purpose of this study only women aged 15-49 who participated in the Domestic Violence Module and who reported to have given birth in the five years before the survey were selected. The outcome variable was pregnancy intent. The predictor variables were physical, emotional and sexual violence. These were recoded into binary variables. The responses for these were “yes” for women who reported that they had experienced a form of violence and “no” for those who had not. Data analysis consisted of three stages; univariate frequency distributions and, bivariate and multivariate analysis using logistic regression. RESULTS: The study found that the experience of gender-based violence was prevalent in Zimbabwe. As 33.25% of women reported having experienced some form of physical violence and 33.71% suffered a form of emotional abuse. In the case of sexual violence, about 15.37% of women reported an experience thereof. Unintended pregnancies were reported by 30.67% respondents. An association between gender-based violence and unintended pregnancy was found to exist. This is evident in both the bivariate and multivariate analyses. Women who have experience gender-based violence are 1.53 times more likely to report unintended pregnancy.
95

Decentering nationalism: Representing and contesting Chimurenga in Zimbabwean popular culture

Mawere, Tinashe January 2015 (has links)
Philosophiae Doctor - PhD / This study seeks to uncover the non-coercive, intricate and insidious ways which have generated both the 'willing' acceptance of and resistance to the rule of Robert Mugabe and ZANU-PF in Zimbabwe. I consider how popular culture is a site that produces complex and persuasive meanings and enactments of citizenship and belonging in contemporary Zimbabwe and focus on 'agency,' 'subversion' and their interconnectedness or blurring. The study argues that understanding nationalism's impact in Zimbabwe necessitates an analysis of the complex ways in which dominant articulations of nationalism are both imbibed and contested, with its contestation often demonstrating the tremendous power of covert forms of resistance. The focus on the politics of popular culture in Zimbabwe called for eclectic and critical engagements with different social constructionist traditions, including postcolonial feminism, aspects of the work of Louis Althusser and Michel Foucault. My eclectic borrowing is aimed at enlisting theory to analyse ways in which co-optation, subversion and compromise often coexist in the meanings generated by various popular and public culture forms. These include revered national figures and symbols, sacrosanct dead bodies and retrievals, slogans and campaign material, sport, public speeches, the mass media and music. The study therefore explores political sites and responses that existing disciplinary studies, especially politics and history, tend to side-line. A central thesis of the study is that Zimbabwe, in dominant articulations of the nation, is often constituted in a discourse of anti-colonial war, and its present and future are imagined as a defence of what has already been gained from previous wars in the form of "chimurenga." I argue that formal sites of political contestation often reinforce forms of patriarchal, heterosexist, ethnic, neo-imperial and class authoritarianism often associated only with the ZANU PF as the overtly autocratic ruling party. In turning to diverse forms of popular culture and their reception, I identify and analyze sites and texts that, rather than constituting mere entertainment or reflecting organized and party political struggles, testify to the complexity and intensity of current forms of domination and resistance in the country. Contrary to the view that Zimbabwe has been witnessing a steady paralysis of popular protest, the study argues that slogans, satire, jokes, metaphor, music and general performance arts by the ordinary people are spaces on which "even the highly spectacular deployment of gender and sexuality to naturalize a nationalism informed by the 'efficacy' of a phallocentric power 'cult' is full of contestations and ruptures."
96

Democracy in Zimbabwe : from liberation to liberalization /

Nhema, Alfred. January 2002 (has links)
Texte remanié de: Th. Doct.--Sc. Po.--Halifax--Dalhousie University, 1994. / Bibliogr. p. 175-199. Index.
97

Remaking labour, reshaping identity : cotton, commoditization and the culture of modernity in northwestern Zimbabwe

Worby, Eric January 1992 (has links)
Until the 1960s, the Gokwe region of northwestern Zimbabwe was perceived as the wild, remote, and culturally backward domain of the "Shangwe" tribe. Since the introduction of small-holder cotton production in the 1960s, and the influx of immigrants from the south, it has been represented as a miracle of agrarian transformation, a frontier of commoditization, and more broadly, as an exemplar of the transition to modernity. In this thesis, I explore how alternative narratives of commoditization inform modes of state intervention, representations of ethnic difference, and forms of agrarian labour in Gokwe. Using my own ethnographic journey through Gokwe as a referent, I examine the different ways in which colonial maps, indigenous myths, and ritual exchanges variously locate relations of power, labour and identity in social space. Labour forms and commodity relations are continually remade as farmers, traders, ethnographers and administrators argue over the signs of modernity and its antitheses.
98

The cultural right to practice traditional medicinal knowledge in Zimbabwe /

Frommer, Chloe Giselle January 2002 (has links)
Cultural resources like traditional medicinal knowledge need to be recognized in their role tied to important regional practices in Zimbabwe. This is especially as a nexus of legal definitions for biological, intellectual and cultural resources will inform a National Sui Generis Legislation for the protection of these resources. Even further, because foreign pharmaceutical companies seeking plant genetic resources, called 'green-gold', benefit from derivatives of traditional medicinal knowledge it is important to protect these practices as part of an entire social and symbolic system. This system can be conceived as traditional medicinal knowledge is accessed, kept, shared, used and valued as a spiritual gift that links individuals, families and community in relationships. Change to this arrangement occurs when the derivatives of it are appropriated for local non-customary use in Zimbabwe's street markets, in a trade union of traditional-healers, as well as for research and development schemes. Acknowledging the spectrum of divergent interests and practices surrounding traditional medicinal knowledge is a prerequisite to creating a system of protections for it as a cultural resource. A National Sui Generis Legislation framework that clearly supports and protects the cultural right of local individuals and communities will thereby need to identify the important customary and non-customary regional practices around traditional medicinal knowledge and create entitlements to them accordingly.
99

Women, war and social change in Zimbabwe : the challenge of independence /

Lueker, Lorna L. January 1998 (has links)
Thesis (Ph. D.)--University of California, San Diego, 1998. / Vita. Includes bibliographical references (leaves 227-245).
100

Great Zimbabwe : eine ethnologische Untersuchung /

Böhmer-Bauer, Kunigunde. January 2000 (has links)
Diss.--Philosophische Fakultät--München--Kudwig-Maximilians-Universität, 1999. / Bibliogr. p. 472-499.

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