Symmetric dual-wind discontinuous Galerkin methods for elliptic variational inequalities

The main goal of this dissertation is to formulate and analyze a dual wind discontinuous Galerkin method for approximating solutions to elliptic variational inequalities. A discontinuous Galerkin (DG) finite-element interior calculus is used as a common framework to describe various DG approximation methods for second-order elliptic problems. The dual-wind discontinuous Galerkin method is formulated for the obstacle problem with Dirichlet boundary conditions, ??_u _ f on with u = g on @, u _ on , and (_u ?? f)(u ?? ) = 0 on . A complete convergence analysis is developed and numerical experiments are recorded that verify these results. A secondary goal of this dissertation is to explore the effect of the penalty parameter on the error of the dual-wind discontinuous Galerkin method’s approximation to an elliptic partial differential equation. The dual-wind discontinuous Galerkin method is applied to the Poisson problem in two dimensions. The dual-wind discontinuous Galerkin approximation to the Poisson problem is constructed using various penalty parameters and the error is recorded for each approximation across various initial meshes and their refinements. [This abstract has been edited to remove characters that will not display in this system. Please see the PDF for the full abstract.]]]> 2020 Galerkin methods Discontinuous functions Variational inequalities (Mathematics) English http://libres.uncg.edu/ir/uncg/f/Rapp_uncg_0154D_13093.pdf oai:libres.uncg.edu/33277 2020-09-24T15:20:27Z UNCG Collectives and countercollectives: how the rhetoric of mass media persuades citizens in wartime NC DOCKS at The University of North Carolina at Greensboro Reed, Stacy <![CDATA[The purpose of the following analysis is to highlight rhetorical patterns common during wartime across multiple decades and forms of mass media communication, and to demonstrate how the technologies of media intersect with rhetorical patterns in the creation of collectives and countercollectives. By drawing on and extending the theories of Kenneth Burke and Marshall McLuhan, I pinpoint the similarities and differences in persuasive strategies across shifting electronic mass media, noting how rhetorical appeals remain consistent though the forms they take and the modes in which they are delivered by rhetors changes with historical context and technological affordances. Historical accounts and primary sources provide the basis for such rhetorical analysis. While the technology may change and become increasingly sophisticated in its affordances and accessibility, the rhetorical patterns of collectives and countercollectives remain similar, as strategic appeals to logos, pathos, and ethos are relied upon similarly by both pro- and antiwar collectives. The rhetorical analyses of the collectives and countercollectives across the four wars under investigation suggests useful strategies for rhetors of both present-day and future mass media communications

Can hype be a force for good?

Hype takes the form of visions and stories, articulated through optimistic or pessimistic expectations. Visions of desirable futures to work towards, or undesirable futures to work against, help to motivate support for research and gather necessary resources, including funding and political capital. From research proposal through to commercialisation, science hype occurs at all stages of the research process. It is produced by all manner of science and technology actors as they imagine and invent technoscientific futures. To investigate the role of science hype in this thesis, I construct a conceptual framework that adopts research on sociotechnical imaginaries, anticipatory governance, and notions of convening publics. I use this framework to argue that hype is a communicative device that can spark unexpected engagement with science and technology futures. I test this framework using three cases studies in which hype is used to advance support for science and technology. In these case studies, hype helps shape the future of scientific research and technology development within the contexts of: human exploration of Mars; quantum-enabled technologies; and grand challenge-driven mandates for research. Hype, in a sense, prototypes those futures by establishing the viability and potential of the topic at hand. Within these case studies, hype is adopted to advance rhetoric concerned with competition, global leadership, and societal benefits. The events documented in these case studies affirm the ideal of science and technology ensuring progress and advancement. However, within the last case study, a different narrative emerges. This narrative suggests a new role for hype; one which draws on anticipatory governance. It opens the way for discussion on how hype might be repurposed in aid of science and technology that is created with, rather than for, society. In this scenario, the use of hype invites response, agreeable and otherwise, to potential shared futures

Conflicts, integration, hybridization of subcultures: An ecological approach to the case of queercore

This paper investigates the case study of queercore, providing a socio-historical analysis of its subcultural production, in the terms of what Michel Foucault has called archaeology of knowledge (1969). In particular, we will focus on: the self-definition of the movement; the conflicts between the two merged worlds of punk and queer culture; the \u201cinternal-subcultural\u201d conflicts between both queercore and punk, and between queercore and gay\lesbian music culture; the political aspects of differentiation. In the conclusion, we will offer an innovative theoretical proposal about the interpretation of subcultures in ecological and semiotic terms, combining the contribution of the American sociologist Andrew Abbot and of the Russian semiologist Jurij Michajlovi\u10d Lotma

Complexity, design and culture: convergences for digital experiences

The design of digital experiences and sociotechnical solutions in the contemporary society is characterized by increasing complexity. More and more variables are present and unpredictable effects are observed. The complexity of systems calls for increased awareness and problem-solving abilities. In this survey, design in general, and design of the user experience in particular, is positioned in the scope of complexity. Moreover, the design reasoning and methods are framed by culturally determined factors and cognitive styles. This survey aims to converge complexity and complex problem solving, design of the user experience, and cultural variations, reviewing bodies of work to inspire and map interdependencies that shape future challenges in systems and experience design.info:eu-repo/semantics/publishedVersio

A Qualitative Exploration of the Japanese Public\u27s Response to the Fukushima Nuclear Disaster

This narrative content analysis was conducted to gain an understanding of the experiences and perspectives of the Japanese public and explore how individuals have responded to and been impacted by the Fukushima nuclear disaster. After application of selection criteria, content from one alternative media website - Fukushima Diary - became identified as a source of data in this study. In all, 841 single-spaced pages of data analyzed to further understanding of the public\u27s cognitive, affective, and behavioral responses to the health threat posed by the Fukushima nuclear catastrophe resulted in identification of six themes arranged according to two dimensions. The first dimension, when the impossible happens, consists of three themes centered on the public\u27s affective and cognitive responses: (a) a shock to the system, (b) increasing perception of threat, and (c) betrayal and systemic domination. The second dimension, we have to save ourselves, includes three themes highlighting the public\u27s behavioral responses: (a) the mosquito and the dinosaur, (b) two kinds of people, and (c) a butterfly trying to move a mountain. Collectively, these six themes reveal how this disaster has impacted the wellbeing of those living in Japan and illuminate the centrality of culture and communication to the Japanese public\u27s understanding of and response to this nuclear catastrophe. Findings confirm the heuristic value of the EPPM and the five cultural dimensions in Hofstede\u27s framework. As an emergent theory, Iori Mochizuki\u27s self-hypnosis model provided a valuable lens for furthering understanding of how this disaster impacted the Japanese public. As suggested by this research, the Japanese response to the Fukushima nuclear disaster remains highly heterogeneous. While statistics on overall releases of radiation provide an essential objective measure of the severity and potential impact of the disaster, this study illuminates the value of examining detailed narrative accounts when seeking to understand the human toll of this catastrophe

PERSUASIVE TECHNOLOGY AND GAMIFICATION AT THE WORKPLACE: ENGAGING EMPLOYEES IN EFFECTIVE DOCUMENTATION OF ANALYSIS AND EVALUATIONS

The availability of rich and high-quality data gives organizations the opportunity to make strategic decisions and a competitive edge over their competitors. However, documentation has been known to be a repetitive and tedious task and employees who perform this task may not be inherently motivated and suffer from fatigue, which reflects poorly on the quantity and quality of documentation. This thesis addresses this problem and proposes to use Persuasive Technology and Gamification to engage employees in documentation. Persuasive technology aims to change behaviours and attitudes through the art of persuasion without the use of coercion. Gamification is a type of Persuasive Technology that leverages the persuasive power of games to cause behaviour change in people. A lot of existing research and practice have focused on using Persuasive Technology and Gamification to achieve workplace engagement, motivation and productivity. However, there is little research on the use of Persuasive Technology and Gamification to engage employees in effective documentation of analysis and evaluations. This research aims to fill this gap and explore the feasibility of leveraging Persuasive Technology to encourage employees in documentation of analysis and evaluations. A Requirement-Focused Design Science Research approach was adopted to define requirements for the implementation of a persuasive gamified system to encourage employees in documentation of analysis and evaluations. Two studies were conducted to investigate employee motivation and the susceptibility of employees to various persuasive strategies. The first study was conducted among 20 Applied Behaviour Analysis front-line staff. ABA is data driven, however, front-line staff do not provide sufficiently rich data which is a critical part of the success of ABA. The second study was carried among 55 Graduate Assistants (markers) from the University of Saskatchewan. Providing feedback on assignments is a quintessential part of the learning cycle of students and the availability of feedback that students can understand and execute is required. However, students find feedbacks provided to them often vague, insufficient, or difficult to comprehend. Especially, in the second study, the results depicted a workforce whose engagement in tasks was not self-determined and a description of a perceived low satisfaction of Basic Psychological Needs; Competence, Relatedness and Autonomy. This presents a workforce that will engage in the minimum amount of work required of them without an extra effort in performance. The results of our studies showed that both ABA front-line staff and Graduate Assistants are most susceptible to two persuasive strategies - Commitment and Reciprocity, followed by Authority and least susceptible to Consensus and Scarcity among Cialdini’s persuasive principles. Among the social influence persuasive strategies, employees from both studies were most susceptible to Trustworthiness. Whilst there was no statistically significant difference between the other social influence persuasive strategies (Reward, Competition, Social Comparison, Social Learning) among ABA employees, Graduate Assistants were more susceptible to Reward and Competition and least susceptible to Social Comparison and Social Learning. However, gender and continent of origin influenced the susceptibility of Graduate Assistants to Trustworthiness and Social Learning. North American Males are not influenced by Social Learning in contrast to African Males who influenced by it. Although North American females are least susceptible to Social Learning, they are still influenced by it. These results imply the investment in a persuasive gamified system that will facilitate the satisfaction of the Basic Psychological Needs of employees to increase their intrinsic motivation in effective documentation of analysis and evaluations. Persuasive and game elements that support Rewards, Competition, Trustworthiness, Commitment, Reciprocity and Authority could be used to achieve this. To make these results actionable, requirement guidelines have been recommended for both workplaces based on the insights gathered from the user studies. However, these requirements have not been evaluated. Therefore, future work will involve the design, development and evaluation of a persuasive gamified system based on the requirements specifications. Also, to draw definite conclusions on tailoring persuasive strategies to individuals and groups, future research should consider the impact of other workplace diversity factors that may impact susceptibility to these persuasive strategies

Cultural Dynamics of African Management Practice

This research study looked at the cultural value preferences in Western management practice for African manager and non-manager employees exemplified by Nigerian cement industries. The study specifically focused on management practice of leadership, motivation, recruitment and promotion around which their cultural values, the meaning of their work-world and their coping strategies are structured. From management and culture theory perspectives, managerial practices are affected both by Western factors, such as education, money, challenging tasks, and by traditional factors, such as family, ethnicity, social connections etc. The theoretical bases for this study drew largely from three streams of literature. The first theoretical base for the study relates to traditional African environment of management, especially the cultural perspectives. The second drew largely from the theoretical discourse on culture, management and organisation perspectives. The mainstream schools of management discourse on management theories and models as proposed by Western management theorists represent the third stream. As a methodology, the study used a quantitative questionnaire survey and qualitative open-ended interviews to collect data on the manager and non-manager employees in the organisations. The quantitative questionnaires and open-ended interviews centered national dimensions of cultures and on these Western and traditional factors of: leadership styles, motivation, dedication, satisfaction, ethnicity, family and social connections. The survey confirms that the dimension of national cultures of Nigeria as measured by the work-values and desires of the employees population are somehow different from those obtained by Hofstede’s study for the West African Region. Nigeria is still more collectivistic, although at least Nigeria has become relatively more individualist since Hofstede’s study. Over the years between Hofstede’ IBM study and the present study, there has been no change in the difference in Power Distance. Power Distance is much higher in Nigeria, like elsewhere in Africa, and this is unlikely to change for the foreseeable future. The large Power Distance in Nigeria means that the ideal manager is benevolent paternalistic. On recruitment and promotion, one major point made is that the traditional factors are generally felt by the respondents as influencing employees’ recruitment and promotion more than the modern (intrinsic) factors. The employees however, generally felt that the modern (intrinsic) factors should or ought to have greater influence. Building on the premises that every society is unique and its trajectory is shaped by its unique historical events, cultural norms and values, it can be argued that since the history of Western management concept in Africa is short, Africa then has a unique opportunity to develop its own unique management values based on its unique traditions. However, the increasing globalisation of market economies suggests that management values in Nigeria in particular and Africa in general can hardly be realised without proactively contributing to the Western management concepts in its unique ways. As the intensity of interaction between Western management practices and African traditional values increases, we can anticipate the increase in the importance of a new form of management concepts and practices in various African countries. Based on others and this study, the study proposes a “management heterogeneity” concept that reflects this new and unique perspective. Management heterogeneity perspective endorses the view that the practice of leadership, motivation, recruitment and promotion are developed differently in different cultural societies and organisations. But it adopts a pragmatic position on the mounting social and economic challenges now facing African organisations and argues further that management techniques, skills and behaviours practiced in different cultures and organisations can be brought together in a positive synergistic blend to address the needs of a given society and organisation and improve its ability to deliver effective and relevant values to its actors. It is the ability to judiciously select and combine the Western and traditional values and practices into new practices that fit the managerial requirements of a given group of organisational members that provides management its competitive edge in a culturally dynamic management environment

Negotiations between British and Dutch managers: cultural values, approaches to conflict management, and perceived negotiation.

The present research investigates cultural values, approaches to conflict management, and perceived negotiation satisfaction in manager samples from the UK and the Netherlands. Three studies (total N = 412) were conducted, of which Study 1 and 2 pertained to the development of the measure and Study 3 was used to conduct the main analysis. The research focus centres around the following main objectives: a) refinement of conflict management models and instruments; b) profile analyses of Dutch and British conflict management approaches using Schwartz’s (1992, 1994) Value Types to explain observed differences, and c) testing of a model describing interrelations between cultural values, approaches to conflict management, conflict context, and perceived negotiation satisfaction. Previous research on conflict management modeled conflict behaviour on the basis of a concern for self vs. concern for others matrix, which incorporated communication styles. The present research distinguishes between the underlying concerns, conflict management strategies, and communication styles to predict perceived negotiation satisfaction. Furthermore, conflict management dynamics are investigated by comparing the ratings of own vs. other team’s conflict management approach. In-group vs. out-group differentiation was dependent on the social desirability of the conflict management approach in question. Dutch managers associated themselves less and British managers more with a concern for Inconvenience, Avoiding, and Indirect communication, whereas British managers associated themselves more and Dutch managers less with these approaches. Results for cultural values showed that the main difference between Dutch and British managers concerned a higher score for Dutch managers on Self Transcendence and a higher score on Self Enhancement for British managers. Self Enhancement mediated the effect for nationality for Dominating strategy. Furthermore, Self Transcendence predicted a concern for Clarity, a Problem Solving strategy, and a Consultative communication style. Nationality as predictor of Concern for Inconvenience, Avoiding strategy, and Indirect communication style was not mediated by Value Types. Suggestions are made for future research exploring the role of Uncertainty Avoidance at the individual level. Success and Comfort were predicted by own and other team’s Conflict Management Approach, additional to cultural value types and contextual variables. National differences were observed for particular predictors of perceived negotiation satisfaction