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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

Public health at the margins : local realities and the control of neglected tropical diseases in Eastern Africa

Bardosh, Kevin Louis January 2015 (has links)
Neglected Tropical Diseases (NTDs) are both causes and manifestations of poverty in developing countries. Recent advocacy efforts have increased the profile of NTDs, and led to bold new control and elimination targets set for 2020 by the World Health Organisation. However there are multifaceted challenges in effectively implementing NTD interventions in resource-poor contexts that need to be understood and engaged. While there is a growing call by researchers and international agencies for a science of global health delivery to understand these complexities, the exact nature of this science remains contested. This thesis contributes to these debates by advancing a critical social science perspective on the factors that mediate intervention effectiveness for NTD control. Grounded in a social constructivist approach using mixed methods, it critiques prevailing orthodoxies by unpacking the nature, processes and outcomes of three large-scale NTD prevention programmes in Eastern Africa. Focused on different diseases, these case studies represent different types of intervention approaches: top-down, participatory and public-private partnership. The thesis traces the social, technical and environmental processes that mediate the delivery, adoption and use of particular health technologies, such as pit latrines, insecticides and vaccination. Together, these case studies reveal surprisingly similar reasons for why many interventions do not perform according to expectations. Despite new approaches that claim to overcome stereotypical challenges of top-down planning, narrow technocratic perspectives continue to play a defining role in maintaining disjunctions between global aspirations, local realities and intervention outcomes. New perspectives and changes in orientation are needed that emphasise flexibility, learning and adaptability to local contexts. Towards this end, the thesis outlines a conceptual framework based on a comparative analysis of the case studies that highlights five interrelated domains where effectiveness is determined: geographical/livelihood variation, local agency, incentives, the socio-materiality of technology and planning/governance. I argue that addressing the shortcomings of contemporary interventions requires that programme planners actively engage these domains by seeking to “order complexity.” Greater integration of social science perspectives into the management of NTD programmes would provide significant benefit. In these ways, the thesis contributes to wider debates about the nature of global health interventions and the influence of local contexts in mediating efforts to improve the health and wellbeing of the world’s poor and marginalised.
112

The effects of a social studies teacher training program, emphasizing global education, on the teaching behaviors of secondary level preservice teachers

Cruz, Barbara C. 28 August 1990 (has links)
This study investigates the effects that enrollment in a year’s social studies teacher training program emphasizing global education has on preservice social studies teachers’ teaching behaviors. A qualitative research effort supported by quantitative approaches was employed. A researcher-made questionnaire, the Social Studies Internship Inventory (SSII), was utilized along with classroom observations by a participant-observer. Subjects taking the SSII included all student teachers completing their internships in secondary social studies education during the 1988-1989 academic year. For the observational portion of this study, six subjects were selected from among the aforementioned group. Their student teaching placements were in a mixture of urban, suburban, and inner-city schools at both the junior and senior high school levels. Findings include: much of global education relies on the ability of the teacher to recognize a "critical teaching moment"; a curriculum that emphasizes a global perspective may depend more on the teacher than other curriculums; daily newspaper reading increased significantly between the beginning of the academic year and the end of the internship; a reversal occurred in the popularity of the television and newspaper as the main source of information over the course of the academic year (television news was watched more at the beginning? newspapers consulted more by the end); at the beginning of the study, 20% of the future teachers belonged to a professional organization; by the end of the program, 96% had memberships; though both the discrete and infusion approaches to global perspectives in education have their respective merits, a blending of the two was most effective; the role of the cooperating teacher seems to be crucial in imparting global perspectives to the student teacher; the university supervisor, who was trained in global perspectives, had an effect on the interns’ teaching; an unexpected finding was the great amount of student-talk observed; teachers who were most successful in teaching from a global perspective emphasized critical thinking skills and civic responsibility.
113

Samhällskunskapsdidaktik inom koncentrationsläsning : En kvalitativ undersökning om hur koncentrationsläsning kan inverka på gymnasielärares didaktik / Didactics in civic within block scheduling : A qualitative investigation regarding possible effects of block scheduling on high school teachers´didactics

Svahn, Sebastian January 2020 (has links)
Block scheduling may mean that the schedule structure of a school is adapted to create longerlessons or that students have fewer subjects parallel to each other. This study examines how socialscience teachers in high school perceive that their didactic conditions change during blockscheduling. The study uses qualitative method in the form of interviews with four social scienceteachers at three different schools to find out how they adapt to block scheduling. The studyexamines the teachers’ thoughts regarding didactics with regards to block scheduling. Thedidactics refers to different educational purposes of social science, student assessment and otherconsiderations that the interviewed teachers consider to be important. The study highlights in what ways some schools and social science teachers have chosento work with block scheduling to strengthen their pupils’ prerequisites for learning. The studyshows that social science teachers at high schools may have positive experiences of blockscheduling. According to the interviewed teachers, extended lesson sessions may bring benefitssuch as flexibility in working methods and arrangements, an in-depth lesson content and a strongerinteraction between students and teacher. According to the interview teachers, block schedulingmay also lead to an increased workload for teachers, but this workload decreases over time.
114

Demokratin i läroboken : En studie om framställningen av demokrati i samhällskunskapsböcker för gymnasieskolan / Democracy in the textbook : A study of the presentation of democracy in social studies textbooks for upper secondary school.

Ling, Rick January 2022 (has links)
The aim of this study is to examine how social science textbooks for upper secondary schools portrays the term “democracy”. Additionally, the study aims to examine the similarities and differences between the textbooks and determine the prevailing overall perspective on democracy. To help do this an analytical tool consisting of five criteria has been constructed based on Robert A. Dahl's theory on democratic processes and John Dewey's view on the role and importance of education for a democracy. These five criteria are: Effective participation/enlightened understanding, voting equality, control of the agenda, inclusiveness, and the role of education in a democracy. A total of six textbooks, based on the latest curriculum from 2011, have been examined and analysed.  The result and analysis of the study generally shows that the textbooks mainly focus on describing the formal democratic decision-making processes and principles without presenting any deeper reasoning for why these are important for democracy. In this context, representative democracy and direct democracy are often highlighted and compared to each other. The informal areas of society where democratic decision-making are made are generally only mentioned in passing or receive minor presentations. The role and importance of education for democracy are only mentioned in some of the textbooks, though school is often used as an example of an area of society where direct democracy is prevalent.  These are the overall similarities that exists across all textbooks. Some differences exist between the various textbooks, but these are only minor in nature. The main difference lies in what aspects of democracy each textbook chooses to highlight rather than the portrayal of democracy itself being any radically different.
115

A multi-modal, multi-platform, and multi-lingual approach to understanding online misinformation

Wang, Yuping 24 May 2023 (has links)
Due to online social media, access to information is becoming easier and easier. Meanwhile, the truthfulness of online information is often not guaranteed. Incorrect information, often called misinformation, can have several modalities, and it can spread to multiple social media platforms in different languages, which can be destructive to society. However, academia and industry do not have automated ways to assess the impact of misinformation on social media, preventing the adoption of productive strategies to curb the prevalence of misinformation. In this dissertation, I present my research to build computational pipelines that help measuring and detecting misinformation on social media. My work can be divided into three parts. The first part focuses on processing misinformation in text form. I first show how to group political news articles from both trustworthy and untrustworthy news outlets into stories. Then I present a measurement analysis on the spread of stories to characterize how mainstream and fringe Web communities influence each other. The second part is related to analyzing image-based misinformation. It can be further divided into two parts: fauxtography and generic image misinformation. Fauxtography is a special type of image misinformation, where images are manipulated or used out-of-context. In this research, I present how to identify fauxtography on social media by using a fact-checking website (Snopes.com), and I also develop a computational pipeline to facilitate the measurement of these images at scale. I next focus on generic misinformation images related to COVID-19. During the pandemic, text misinformation has been studied in many aspects. However, very little research has covered image misinformation during the COVID-19 pandemic. In this research, I develop a technique to cluster visually similar images together, facilitating manual annotation, to make subsequent analysis possible. The last part is about the detection of misinformation in text form following a multi-language perspective. This research aims to detect textual COVID-19 related misinformation and what stances Twitter users have towards such misinformation in both English and Chinese. To achieve this goal, I experiment on several natural language processing (NLP) models to investigate their performance on misinformation detection and stance detection in both monolingual and multi-lingual manners. The results show that two models: COVID-Tweet-BERT v2 and BERTweet are generally effective in detecting misinformation and stance in the two above manners. These two models are promising to be applied to misinformation moderation on social media platforms, which heavily depends on identifying misinformation and stance of the author towards this piece of misinformation. Overall, the results of this dissertation shed light on understanding of online misinformation, and my proposed computational tools are applicable to moderation of social media, potentially benefitting for a more wholesome online ecosystem.
116

The Effects of the Internet on Political Participation and Polarization

Roderick, Tyler A 01 January 2022 (has links)
In the age of technology and with rapid expansion of social media outside of simply the social realm (entertainment), as it delves into the political realm, it is important to assess the implications that new technologies will have on our democracy. The purpose of this study is to attempt to predict the ramifications of the internet on American politics and the impact it is having on political norms and responsibilities. The norms that are expressly being examined are voter turnout and partisanship. We have seen in recent elections how individual candidates have utilized the internet to further their own campaigns and policy objectives. Indeed, President Barack Obama’s first campaign was hailed for its effective grassroots employment of social media to interact with young voters. This greatly contributed to his victory in the 2008 election over Republican John McCain. Donald Trump employed similar tactics in 2016, notoriously using Twitter to spread his message to his loyal base. President Trump also utilized claims of misinformation from the established political “gate-keepers” (i.e., mainstream media) to further push his narrative, further diminishing the power of established media outlets and propelling more people to alternative online outlets to receive their political information. This study looks at the long-term effects of such use, and how the voters are responding, and will seek to answer three main questions: (1) Are individuals outside of the typical voting elite (highly educated and/or wealthy) utilizing the internet for political purposes? (2) Does campaigning and/or policy projection via the web have any impact on election outcomes, or is it serving as another platform to reach out to an already loyal base? (3) Is the internet breaking down political divides and expanding the politically independent group, or has partisanship increased because of the internet?
117

Introducing Semantic Role Labels and Enhancing Dependency Parsing to Compute Politeness in Natural Language

Dua, Smrite 13 August 2015 (has links)
No description available.
118

Navigating online harms: countering influence campaigns and hate in the social media ecosystem

Saeed, Mohammad Hammas 24 May 2024 (has links)
Social media platforms have become immensely popular over the years, leading to significant changes in cyberspace and the emergence of numerous challenges. These challenges have various faces, such as disinformation, online hate, cyberbullying, discrimination, biases, and other facets of harm. From the perspective of an end-user, the modern-age online ecosystem can be harmful in various ways, e.g., by consistently coming across disinformation in the online spaces or being targeted by a hate attack because of a specific ethnic or racial background. As we move forward, it is crucial to understand the nature and impact of new-age harms to make the Internet a safer place for everyone. To this end, my first contribution is the study of inauthentic accounts, also known as troll accounts. Troll accounts on social media are often sponsored by state actors aiming to manipulate public opinion on sensitive political topics. The strategy they commonly use is to interact with one another and appear innocuous to a regular user while covertly being used to spread toxic content and/or disinformation. I first study the effect that troll accounts have on online discussions on Reddit and show that state-sponsored troll accounts on Reddit produce threads that attract more toxic comments than other posts on the same subreddit. Next, I build TROLLMAGNIFIER, a detection system for troll accounts based on the observation that these accounts often exhibit loose coordination and interact with each other to advance specific narratives. TROLLMAGNIFIER learns the typical behavior of known troll accounts and identifies more that behave similarly. I show that using TROLLMAGNIFIER, one can grow the initial knowledge of potential trolls provided by Reddit by over 300%. Building upon the understanding of troll accounts and online campaigns, I then study the broader aspects of online disinformation. In this work, I study 19 influence campaigns on Twitter originating from various countries and identify several strategies adopted across different state actors, e.g., using scheduling services to delegate their posting tasks, utilizing fake third-party versions of popular applications (e.g., “Twitter for Android”) to post messages, extensively retweeting to push certain agendas, and posting innocuous messages (e.g., motivational quotes) to potentially avoid detection. Overall, I identify several universal traits among campaigns to create a cross-campaign detection system that can detect upto 94% accounts from unseen campaigns. Lastly, I delve deeper into the importance of cybersafety and study coordinated attacks, such as cyber-aggression and hate attacks, which are becoming increasingly common on video sharing networks like YouTube. Polarized online communities choose targets on prominent online platforms (e.g., YouTube) and organize their attacks by sending hateful messages to their target. The proposed system, TUBERAIDER, addresses this issue by automating the detection and attribution of attacks to their source communities, aiding in moderation, and understanding the motivations behind such actions. The system collects YouTube video links from diverse sources, including 4chan’s /pol/ board, r/The_Donald subreddit, and 16 incel subreddits. The attribution is performed through a machine learning classifier based on TF-IDF scores of important keywords and achieves an accuracy above 75% in attributing a coordinated attack to a given video. In summary, my research focuses on understanding, detecting, and combating online harms using a data-driven approach. I develop tools to mitigate the malicious behavior with the goal of offering policymakers guidelines to ensure user safety on social media platforms.
119

Measuring the Communicative Constitution of Partial Organizations as Complex Systems

Schwing, Kyle Michael 11 May 2023 (has links)
Communicative acts constitute organizations as social entities. I build upon the most structured previous analysis of this process, the four flows framework, by introducing a complex systems model of how organization emerges along a continuum, thereby enabling measurement of the growth and decline of partial organizations. I validate my approach using simulated data from two stochastic agent-based models and 30 historical case studies of insurgency. I show that the four flows may be used to assess the historical victor of a conflict, or to track the emergence of an organization from real-time communication network data. My results demonstrate the complex interrelationship of the four flows, and how they relate to social phenomena such as information asymmetry, individual versus group interest, governance, and the development of community structure. I reaffirm the centrality of these flows to the phenomenon of organization, while challenging the minimum requirements for it to begin, by showing that organization spontaneously emerges in a population as a result of markers of affiliation and human cognitive biases. / Doctor of Philosophy / Humans organize collective behavior by communicating. Prior research has shown that all organizations establish the costs and benefits of membership, distinctions from other organizations, enduring protocols, and approaches to short-term coordination. The strength with which organizations define each of these traits emerges on a continuum from a nascent organization to a robust one. My work is the first to place these acts of communication in an engineering model, showing how an organization works as a system to reduce collective uncertainty. I first explore my model in a computer simulation, demonstrating that each of the four processes can be measured. I then quantify the strength of each process in 30 case studies of insurgency, measuring the changing effectiveness of the insurgents and their state opponents at establishing themselves as the governing entity in an area. My technique accurately predicts the outcome of all 30 case studies. Finally, using a second simulation, I demonstrate measures of all four processes in communication records and show that organization may be the result of merely recognizing oneself as part of a group, amid basic patterns in human thinking, rather than evidence of cooperation toward shared objectives.
120

The history of programme evaluation in South Africa

Mouton, Charline 12 1900 (has links)
Thesis (MPhil (Sociology and Social Anthropology))--University of Stellenbosch, 2010. / ENGLISH ABSTRACT: This study seeks to document the emergence of programme evaluation in South Africa. The value of the study lies in the fact that no extensive study on the history of programme evaluation in South Africa has been undertaken before. In order to locate the study within an international context, the study commences with a description of how programme evaluation developed as a sub discipline of the social sciences in other countries. In terms of the South African context, the NGO sector, public sector and professionalisation of programme evaluation is considered. Through this study, it is proposed that the emergence of programme evaluation in South Africa is directly linked to donor activities in the NPO sector. This leads to a discussion of the advancement of monitoring and evaluation in the public sector – specifically the role played by government in institutionalising monitoring and evaluation. Finally, the professionalisation of the evaluation field is also included. The study commenced with a thorough document analysis to gather data on both the international context as well as the South African context. In terms of gathering data on South Africa, data on certain aspects of the emergence of programme evaluation was very limited. To augment the limited data on the local front, face to face and telephonic interviews were conducted. Through these conversations, valuable additional non-published resources and archaic documents were discovered and could be included in the study to produce a comprehensive picture of the emergence of programme evaluation in South Africa. A number of salient points emerge from the thesis. Firstly, there are both similarities and differences between the United States and the UK when considering the emergence of programme evaluation internationally. Secondly, South Africa followed a different trajectory to the USA and UK, where programme evaluation originated within government structures and was consequently a top down occurrence. In South Africa, programme evaluation emerged through donor activity and therefore occurred from the bottom up. Thirdly, in comparison to the US and UK, the South African government did not initially play a significant role in the advancement of monitoring and evaluation (M&E). However, it is within this sector that M&E became institutionalised in South Africa. Finally, the professionalisation and development of programme evaluation in South Africa can be attributed to the first generation evaluators of the 1990s. It is the critical thinking and initiative taken by these individuals that stimulated the field. It is hoped that this study will constitute only the first step into the documentation of programme evaluation’s history in South Africa as there are many areas where further investigation is still required. / AFRIKAANSE OPSOMMING: Hierdie studie ondersoek die opkoms van program evaluering in Suid-Afrika. Die waarde van die studie is gekoppel aan die feit dat daar nog nie vantevore so ‘n uitgebreide studie rondom die geskiedenis van program evaluering onderneem is nie. Ten einde die studie binne ‘n internasionale konteks te plaas, word ‘n beskrywing gegee van hoe program evaluasie as ‘n subdissipline van die sosiale wetenskappe in ander lande ontwikkel het. In terme van die plaaslike konteks word die NPO sektor, die publieke sektor en die professionalisering van program evaluering ondersoek. ‘n Hipotese word voorgelê dat die opkoms van program evaluering in Suid- Afrika direk verwant hou met internasionale skenkerorganisasies se aktiwiteite in Suid-Afrika. Daarna volg ‘n bespreking van die groei van monitering en evaluering in die publieke sektor. Laastens word die professionalisering van die evaluasie domein ook bespreek. Die beginpunt van die studie was ‘n deeglike dokumentêre analise ten einde inligting in te samel oor die internasionale sowel as plaaslike konteks. In die geval van Suid-Afrika was die data baie beperk in sommige areas, veral rondom die geskiedenis van program evaluering. Ten einde die data aan te vul, is telefoniese en persoonlike onderhoude gevoer met sleutelpersone in die betrokke sektore. Deur die gesprekke is toegang verkry tot waardevolle addisionele ongepubliseerde bronne en historiese dokumente. Die ontdekking en insluiting van die dokumente verseker dat ‘n volledige beeld geskets word rondom die opkoms van program evaluering in Suid- Afrika. ‘n Aantal betekenisvolle bevindings volg vanuit die studie. Eerstens, daar is beide ooreenkomste en verskille in die manier wat program evaluering in Amerika en die Verenigde Koninkryk tot stand gekom het. Tweedens, Suid-Afrika volg ‘n verskillende perogatief in vergelyking met Amerika en die Verenigde Koninkryk waar program evaluering sy ontstaan binne die regering gehad het en ook deur die regering “afgedwing is”. In Suid-Afrika, kan program evaluering se opkoms in teenstelling daarmee direk gekoppel word aan die betrokkenheid van ‘n skenker organisasie. Derdens, in vergelyking met Amerika en die Verenigde Koninkryk het die Suid-Afrikaanse regering aanvanklik nie ‘n betekenisvolle rol gespeel in die vooruitgang van monitering en evaluering nie. Dit is egter noemenswaardig dat die publieke sektor die institusionalisering van monitering en evaluering teweegebring het. Laastens, kan die professionalisering en groei van program evaluering in Suid-Afrika grootliks toegeskryf word aan die bydrae van die eerste generasie evalueerders van die 1990s. Dit is grootliks die persone se bydrae in die vorme van kritiese denke en inisiatief wat die veld gestimuleer en bevorder het. Dit is my hoop dat hierdie studie gevolg sal word deur die voortdurende dokumentasie van die geskiedenis en verloop van program evaluering in Suid-Afrika.

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