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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.
111

Violence Against Civilians During Armed Conflicts in Sub-Saharan Africa

Larmin, Augustine T 01 January 2023 (has links) (PDF)
Why victimize civilians during civil war? Inspired by my survival of two civil wars in Liberia, I offer a theory of violence against noncombatants during armed conflicts in sub-Saharan Africa. Civil wars in post-colonial sub-Saharan Africa have a typical pattern that can be distinguished with three distinct stages: the "onset" period at the start of conflicts; the "intervention" period, marked by third-party involvement and negotiations; and the "settlement" stage, marked by an interim government with cabinet positions rationed among belligerents. I argue that the causes and motives for violence against civilians vary across these three stages of civil war. In the first "onset" stage, violence against civilians is mainly perpetuated by foreign recruits who lack ties with local populations. Principle-agent and moral hazard problems emerge as foreign recruits, young of age and disconnected from local populations, want to loot and rape civilian populations. In contrast, commanders responsible for these populations have difficulty monitoring and controlling these recruits. The second stage of "intervention" changes the calculus for combating groups, as the bargaining power of each depends on its control of strategic territory, such as ports and airports. Groups with minor territories and weak capacities are incentivized to attack the soft targets of noncombatants, who are sometimes forced to take sides at this stage. At the third "settlement" stage, the distribution of cabinet positions creates rivalries within groups, with disgruntled factions breaking away and resuming conflict. Civilians are caught in the middle, frequently accused of collaborating with the other side, leading to violence against noncombatants, including hostage-taking, as part of the bargaining process. To examine the stage theory of civilian victimization in sub-Saharan Africa's civil wars, I surveyed Liberia's two civil wars that occurred from 1989 to 1996 and 1999 to 2003. I drew on three sources of data to triangulate the causes and motives of violence against civilians: (a) archives, (b) intensive interviews of combatants and civilian victims of these wars, and (c) witnesses' testimonies from the Liberia Truth and Reconciliation Commission (TRC) hearings. These data are used to qualitatively study Liberia's two civil wars, which may be generalizable to other parts of sub-Saharan Africa. It is found that foreign recruits, strategic territories, and political positions in a power-sharing government may have contributed to violence against civilians during the onset, intervention, and settlement phases of Liberia's two civil wars. The research contributes to the general literature regarding violence against civilians during armed conflicts. According to popular opinion, violence against noncombatants is a natural outcome, but this research points out that the causes and motives of violence against civilians can vary in identifiable ways. It shows how civil wars in post-colonial sub-Saharan Africa have a unique pattern associated with foreign intervention and settlements, and these phases may account for varying motives for violence against civilians. Knowing the motivating factors for violence against civilians can help protect vulnerable populations during armed conflicts, including refugees, internally displaced persons, migrants, and victims of human trafficking. Intervening governments can make more significant efforts to protect civilian populations during the intervention phases and be more sensitive to the dangers sub-group actors pose in distributing government positions during the settlement phases of these wars.
112

THE EFFECT OF POTYVIRUS RESISTANCE ON MAIZE LETHAL NECROSIS (MLN)

Bulegeya, Victoria Bikogwa January 2016 (has links)
No description available.
113

Religion networks and HIV/AIDS in rural Malawi

adams, jimi 06 June 2007 (has links)
No description available.
114

Characterization of Campylobacter, Salmonella, and Diarrheagenic Escherichia Coli from Food, Food Waste and Water in the Chobe Region of Botswana

Bywater, Auja L. 23 June 2023 (has links)
Introduction and Justification: Diarrheal disease is a leading cause of death in children in low- and moderate-income countries. Food, food waste, and water are all vehicles that can promote the spread of diarrheal disease-causing bacteria like Campylobacter, Salmonella enterica, and E. coli. Resistance to commonly used antibiotics is on the rise, making them difficult to manage. This study aimed to determine prevalence and antibiotic resistance profiles of Campylobacter, S. enterica, and E. coli isolated from food, food waste, and water samples obtained from the Chobe Region of Botswana. In addition, the survival of two common pathogens, E. coli and C. jejuni, on kale, a type of leafy green commonly consumed raw, was determined. Methods: Samples were collected from the Chobe region of Botswana in 2022 including water from the local river, food (produce, beef, pork, and poultry) from local vendors, and food scraps from the landfill. Food samples were enriched in the appropriate selective media: Brilliant Green Bile Broth for E. coli, Bolton Broth for Campylobacter, and Rappaport Vassiliadis Broth for S. enterica. Water samples were collected using modified USEPA methods1103.1 and 1604, E.coli isolation was performed by plating on RAPID E.coli2 agar and incubation at 37°C for 2h and 44°C for 16-22h. Campylobacter, S. enterica, and E. coli were isolated from meat, poultry, and water samples before being sent to Virginia Tech, while enriched bacterial pellets from the produce were shipped for screening and isolation at Virginia Tech. E.coli were confirmed by PCR detecting the phoA gene (all E. coli), and classified as pathogenic through screening for the eae (present in enterohemorrhagic and enteropathogenic E.coli), stx1 and stx2 (present in enterohemorrhagic E. coli) and est1b ( present in Enterotoxigenic E.coli) genes. Campylobacter isolates were confirmed using a genera-specific PCR while S. enterica isolates were confirmed using invA primers. These enrichment and primer sets were tested as part of a study to determine the survival of E. coli O157:H7 and C. jejuni on kale during a 21-day shelf life. E. coli and S. enterica isolates were subjected to antibiotic resistance testing using the Kirby-Bauer Disk Diffusion method. Results: Methods for detection of inoculated E. coli O157:H7 on kale indicated survival for the majority of the shelf-life (up to 19 d), in comparison, C. jejuni was undetectable by day 13 using enrichment and PCR or plating. From the Botswanan samples, E. coli was isolated from 20% of produce, 49% of meat, and 84.7% of water. Salmonella was only isolated from produce samples (2.4%, 7/294). Resistance was uncommon among the Salmonella isolates with only one isolate being resistant to chloramphenicol. No Campylobacter were isolated from the screened produce, meat, or food waste. E. coli resistant to 3 or more classes of antibiotics (MCR) were identified in 15.5% of produce, and 22.2% of meat isolates. Isolation of E. coli or Salmonella from meat was not associated with a particular food type. In contrast, isolation of E. coli was more common from certain types of vegetables and fruits. Antibiotic-resistant E. coli were isolated more commonly from beef, poultry, and pork than from produce. Multi-class resistant E. coli were isolated from fruits, greens, soil associated, and above ground associated vegetables, beef, and poultry. Water samples were collected from the same time period as the food samples. E. coli isolation, especially pathogens (based on eae presence) was more frequent from environmental water samples collected during the wet season compared to the dry season. Water samples collected during periods of increased rainfall were more likely to contain E. coli isolates, especially pathogens. S. enterica and Diarrheagenic E. coli isolates, especially MCR isolates, pose a significant risk of illness to consumers. Strategies to reduce the circulation of these pathogens in foods and water sources are needed. / Master of Science in Life Sciences / People can get sick with diarrheal diseases after consuming contaminated food and water. These illnesses are difficult to treat and control when the bacteria causing them are resistant to antibiotics. Campylobacter, Salmonella, and diarrheagenic E. coli are three types of bacteria that can cause illness from food and water. These illnesses disproportionately affect people, especially children, in low-and moderate-income countries like Botswana. Little is known about the prevalence of Campylobacter, Salmonella, and diarrheagenic Escherichia coli in Botswana. This study aimed to determine the prevalence of these microorganisms as well as how resistant they are to different types of antibiotics. Samples from produce, beef, poultry, pork, and recreational water sources were collected in the Chobe region of Botswana over the course of 2022. Food samples were collected from different vendors and food scraps were obtained from the landfill. E. coli and Salmonella were isolated out of meat and water samples in Botswana while produce samples were shipped as mixed cultures to Virginia Tech where E. coli, Salmonella, and Campylobacter isolation or confirmation was done. Once the target bacteria were isolated, their resistance to certain antibiotics was tested. Salmonella was only found in produce from samples collected during October-December. No Campylobacter was found from produce, meat, or food waste. More E. coli was isolated from fruit or vegetable food waste collected from the landfill than from produce bought at local vendors. E. coli was obtained from meat purchased from local vendors more often than samples from the landfill. E. coli was found more often in water when there was more rainfall. E. coli that causes illness was also more likely to be obtained during the wet seasons. Resistant E. coli that could not be killed by the screened antibiotics, were classified as multi-drug resistant when it was resistant to more than three antibiotics. Rainfall, season, and the food source influenced if E. coli isolates were likely to be multi-drug resistant. While more research is needed to determine how these bacteria are moving in the environment and gaining resistance to antibiotics, the findings of this study show they are present in the environment and require further research.
115

(Un)Bundling the Black Experience at PWIs: Using Assets-based Frameworks to Explore the Lived Experiences of Black Sub-Saharan African-born Graduate Students in STEM

Woods Jr, Johnny Crayd 03 May 2022 (has links)
One of the historically marginalized populations in the United States (US) is the Black population. This marginalization extends into higher education, where Black students are underrepresented and continue to experience challenges, especially at Predominantly White Institutions (PWI) and in science, technology, engineering, and mathematics (STEM) programs. However, the current constitution of the Black population, including Black students in the US, is inherently culturally and ethnically diverse. The Black student population includes domestic US students and various groups of foreign-born students such as Black Sub-Saharan African (BSSA) students whose educational trajectories, outcomes, and experiences are unique based on their cultural orientations. Given the within-group differences in this population, prior research has demonstrated the need to disaggregate the experiences in research among different groups for precise research outcomes. This dissertation contributes to that effort by explicitly focusing on the lived experiences of BSSA graduate students pursuing STEM degrees at a PWI through two studies from an assets-based approach: 1) the meaning BSSA graduate students in STEM make of their lived experience with the campus climate at a PWI, using community cultural wealth as a conceptual framework; and 2) the role of family and other funds of knowledge in the educational trajectories and persistence of BSSA doctoral students pursuing STEM degrees at a PWI. I used different qualitative methodologies across both studies, including a blended case study with tenets of participatory action research in the first study in the first study and narrative analysis in the second. The results of these studies revealed that BSSA graduate students in STEM and at PWIs possessed a variety of assets that enable them to resist challenges and persist in their education. Second, the educational environments were not holistically supportive of students. Finally, there was a lack of cultural awareness and validation of students' assets and ways of knowing. The results offered implications for the BSSA graduate students in STEM in the US, scholars, practitioners at PWIs and in STEM departments who work with them, especially in creating inclusive and supportive academic environments. / Doctor of Philosophy / One of the underrepresented populations in the United States (US) is the Black population. The underrepresentation of the Black population extends into universities and colleges. Black students are underrepresented and continue to experience challenges, especially at White populated institutions (PWIs) and in science, technology, engineering, and mathematics (STEM) programs. However, the current body of the Black population, including Black students in the US, is made of many internal groups with different cultures and ethnicities. The Black student population includes domestic students from the US and other groups with international backgrounds who migrate to the US, such as Black students from Sub-Saharan Africa (BSSA), whose educational paths, performances, and experiences are different based on their cultural background. Given the internal group differences in this population, prior research has advanced the need to separately engage with the experiences among the different groups for specific research results and services for each group. This dissertation contributes to that effort by only focusing on the lived experiences of BSSA graduate students pursuing STEM degrees at a PWI through two studies on BSSA students' assets: 1) the meaning BSSA graduate students in STEM make of their lived experience with the campus climate at a PWI, using community cultural wealth as a conceptual approach; and 2) the role of family and other wealth of knowledge in the educational journeys and success of BSSA doctoral students pursuing STEM degrees at a PWI. I used different qualitative methodologies across both studies, including a blended case study with tenets of participatory action research in the first study and narrative analysis in the second. The results of these studies showed that BSSA graduate students in STEM and at PWIs possessed a variety of assets that enable them to resist challenges and persist in their education. Second, the educational environments were not entirely supportive of students. Finally, there was a lack of cultural awareness and support of students' assets and ways of learning. The results offered implications for the BSSA graduate students in STEM in the US, educators, administrators, and researchers at PWIs and in STEM departments who work with them, especially in creating inclusive and supportive academic environments.
116

Running from the Periphery: An Exploratory Analysis of Women Presidential Candidates in Sub-Saharan Africa and the Utility of Minor Parties

Peterson, Gabrielle Ann 18 May 2023 (has links)
Ellen Johnson Sirleaf of Liberia is the only woman in Africa that has ever been voted into presidential office. Uncovering the dynamics perpetuating men's continued dominance in presidential office-holding in this region requires a deeper understanding of presidential candidacies particularly as they relate to gendered patterns of major party support that often occur due to party gatekeeping. As such, this thesis poses the following questions: How prevalent are women candidates in sub-Saharan African presidential elections? To what extent do women run for major party labels versus minor party labels or as independent candidates? What factors explain those patterns of party representation for women presidential candidates in the region? I hypothesize that women are altogether less likely than men to run for president. When women do run, I posit that they forge minor party candidacies as opposed to major party or independent candidacies. While minor parties may signal legitimacy, consolidate policy platforms, and provide resources for women candidates who face gatekeeping from major parties, they will ultimately be unlikely to propel them into viable candidacies let alone presidencies. Using a mixed methodological approach, this thesis aims to assess ways party representation differs between men and women presidential candidates in 26 sub-Saharan African countries that were considered "free" or "partly free" as of their 2020 elections (Freedom House). As the role of women in democratization continues to be in question, this research is vital to understanding how women are incorporated into the politics of new democracies. / Master of Arts / Ellen Johnson Sirleaf of Liberia is the only woman in Africa that has ever been voted into presidential office, likely because women face disadvantages in gaining political party support. While major parties have significant dominance over minor parties, minor parties may be more likely to support women due to discrimination from major parties. As such, this thesis poses the following questions: How prevalent are women candidates in sub-Saharan African presidential elections? To what extent do women run for major party labels versus minor party labels or as independent candidates? What factors explain those patterns of party representation for women presidential candidates? I hypothesize that women are altogether less likely than men to run for president. When women do run, I posit that they forge minor party candidacies as opposed to major party or independent candidacies. Minor party representation may have important benefits that independent candidacies do not have due to lack of party support. Party representation, even from minor parties, can signal candidate legitimacy, present a clear policy agenda, and provide resources, but minor parties will ultimately be unlikely to propel women into presidencies. This thesis aims to assess ways party representation differs between men and women presidential candidates in 26 sub-Saharan African countries that were considered "free" or "partly free" as of their 2020 elections, denoting their statuses as democracies or at least semi-democracies (Freedom House). I further substantiate the quantitative evidence with evidence from interviews, surveys, and historical context. As the role of women in democracy-building continues to be in question, this research is vital to understanding how women are incorporated into the politics of new democracies.
117

Stopping The Spread of AIDS among Women in Sub-Saharan Africa, What Works and What does not: A Comparative Study of Uganda and Botswana

Keene, Thomas 29 June 2001 (has links)
Using feminist theory and comparative analysis, this thesis will investigate why women in sub-Saharan Africa are more vulnerable to HIV/AIDS than men. Among non-governmental organizations and inter-governmental organizations, HIV/AIDS has always been a gender issue because it is clear that women are more vulnerable to the disease, socially, culturally and biologically. Through two case studies -- one on Uganda where the HIV prevalence rate has dropped considerably in recent years, and one on Botswana, where the HIV prevalence rate has drastically increased in recent years â I will shed light on women's vulnerability to HIV, how this vulnerability can be counteracted, and how these counteractive efforts are implemented by women and state governments (if they are implemented at all). It is hypothesized that the empowerment of women may stifle the spread of HIV. / Master of Arts
118

Entrepreneurial strategic posture and new technology ventures in an emerging economy

Amankwah-Amoah, J., Nyuur, Richard B., Hinson, R., Kosiba, J.P., Al-Tabbaa, O., Cunningham, J.A. 24 April 2023 (has links)
Yes / Purpose: Although start-ups have gained increasing scholarly attention, we lack sufficient understanding of their entrepreneurial strategic posture (ESP) in emerging economies. The purpose of this study is to examine the processes of ESP of new technology venture start-ups (NTVs) in an emerging market context. Design/methodology/approach: In line with grounded theory guidelines and the inductive research traditions, the authors adopted a qualitative approach involving 42 in-depth semi-structured interviews with Ghanaian NTV entrepreneurs to gain a comprehensive analysis at the micro-level on the entrepreneurs' strategic posturing. A systematic procedure for data analysis was adopted. Findings: From the authors' analysis of Ghanaian NTVs, the authors derived a three-stage model to elucidate the nature and process of ESP Phase 1 spotting and exploiting market opportunities, Phase II identifying initial advantages and Phase III ascertaining and responding to change. Originality/value: The study contributes to advancing research on ESP by explicating the process through which informal ties and networks are utilised by NTVs and NTVs' founders to overcome extreme resource constraints and information vacuums in contexts of institutional voids. The authors depart from past studies in demonstrating how such ties can be harnessed in spotting and exploiting market opportunities by NTVs. On this basis, the paper makes original contributions to ESP theory and practice.
119

Multi-Scale Analysis of the Opportunities and Threats of Large-Scale Land Acquisitions (LaSLA) to the Sustainable Development of Sub-Saharan Africa (with a focus on Tanzania)

January 2017 (has links)
abstract: Large-scale land acquisition (LaSLA), also called "land grabbing" refers to the buying or leasing of large tracts of land, especially in Sub-Saharan Africa (SSA) by foreign investors to produce food and biofuel to send back home. Since 2007, LaSLA has become an important development issue due to the opportunities and threats for SSA countries. LaSLA has the potential to create local jobs, transfer technology, build infrastructure, and modernize SSA's agriculture. Nonetheless, it can also aggravate food insecurity, perpetuate corruption, degrade ecosystems, cause conflicts, and displace local communities. What drives LaSLA, what are its impacts on local people, and under what circumstances can we consider it as just and ethical? To examine what drives LaSLA, I used country level data from 2005 to 2013 on economic conditions, natural resources, business practices, and governance to estimate LaSLA models. I find that LaSLA increases with increasing government effectiveness, land prices, and the ease of doing business, and decreases with stronger regulatory regimes. To assess LaSLA's impacts on local people, I conducted a comparative case study in Tanzania. I compare changes in peoples' livelihood between treatment villages (those experiencing LaSLA) and control villages (those without LaSLA projects). The results show that under current practices, the risks of LaSLA outweigh the benefits to local livelihoods, yet there are potential benefits if LaSLA is implemented correctly. To philosophically examine whether LaSLA can be considered just and ethical, I apply John Rawls' theory of justice. The analysis indicates that from both procedural and distributive justice perspective, LaSLA currently fails to satisfy Rawlsian principles of justice. From these analyses, I conclude that if implemented correctly, LaSLA can produce a win-win outcome for both investors and host countries. I suggest that strong governance, rigorous environmental and social impact assessment, and inclusion of local people at all levels of LaSLA decision making are critical for sustainable and equitable outcomes. / Dissertation/Thesis / Doctoral Dissertation Biology 2017
120

Persecuted by Structural Violence: Problematizing the Field of Forced Migration

Nat-George, Sisse January 2013 (has links)
This thesis challenges the conventional theory of forced migration by expanding the narrow definition of violence that prevails, not only within international refugee legislation, but also within the academic field of migration. As such, this thesis argues that by limiting the scope of forced migration only to include victims of direct personal violence, manifested in physical harm, we are neglecting the victims of indirect structural violence, that is, the violence of oppression and inequality, where insights and resources are monopolized by a certain group within society, making access unattainable for others. By analyzing personal narratives of six economic migrants from sub-Saharan Africa that has fled their countries to escape structural violence, this thesis aims to shed light on the limitation within the conventional theory of forced migration.

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