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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

Are recovered memories accurate?

Gerkens, David 29 August 2005 (has links)
Research in our laboratory has demonstrated blocked and recovered memories within the context of a controlled experiment. The comparative memory paradigm allows for comparisons of recovered memories, continuous memories, and false memories. Additional research in our laboratory has shown two distinct types of memory errors; semantic based errors which occur due to pre-existing category knowledge, and episodic based errors in which the source of details (list members) are misattributed. Independently, these two lines of research have illuminated basic memory processes, however, they have not been combined previously. That is, the experiments in the present study explore the susceptibility of recovered memories to semantic and episodic based errors relative to continuous memories. Experiment 1 replicated the large blocking and recovery effects previously found by our laboratory. Additionally, it demonstrated that recovered memories were no more prone to semantic based errors than were continuous memories. These errors occurred very infrequently despite the use of materials chosen specifically to induce such errors. Experiment 2 again replicated the large blocking and recovery effects. The equivalent low rate of semantic based errors was also replicated. However, Experiment 2 also revealed that recovered memories were more susceptible to episodic based errors than were continuous memories. This was especially true when the memory block occurred in an interference treatment condition. Finally, post-recall source recognition tests failed to improve memory accuracy. In fact, numerically both semantic based and episodic based errors increased on the source recognition test relative to the cued recall test. Findings are discussed in relation to the source monitoring and fuzzy-trace theories of memory as well as the legal and clinical recovered memory controversy.
92

The Study of Organizational Identification of Environmental Groups' Volunteers

Wu, Pei-hua 22 July 2009 (has links)
none
93

Toward Environmental and Social Sustainability: in search of leverage points

Fior, Daniel January 2015 (has links)
It may be argued that ours is far away from a sustainable society. For all the technological wonders that we have been able to produce, some basic problems such as lack of universal access to the means to satisfy one's basic needs, human rights violations, systematic degradation of the environment, among others are still present. Not for a lack of effort, but scientific progress, political effort and economic growth appear to have real limitations in their capability to help us solve some of these problems that have endured through time. Donella Meadows, an expert in systems analysis, has developed a comprehensive list of points to intervene in a system in order to effect change. Using that framework as a basis, the present study aims to try to identify potential reasons for why most of the efforts conducted so far to solve some of the previously mentioned fundamental problems appear not to be so effective. Many of the fundamental assumptions of the mainstream economic school that heavily influence policy making and individual behavior to a large extent, have been identified as potentially important leverage points being pushed in the wrong direction! Economic powers and vested interests allow for the erosion of the self-controlling elements of the global political-economic system such as democratic institutions, what Meadows classifies as weakening of negative feedback loops. The mainstream economic models promoting "success to the successful" loops such as accumulation of resources in the hands of a few, all the while concentrating power can be pointed out as an example of a positive loop getting dangerously out of control. Uncontrolled positive loops inevitably lead to system collapse. Concentration of power is specially dangerous as it can bestow upon an elite the power to set the rules of the system, one of the most effective leverage points according to Meadows. Additionally, by curtailing biological, ideological and cultural diversity we are compromising one of the fundamental conditions for our systems to endure threatening changes, the ability to self-organize, or evolve. The most powerful leverage point is the paradigm out of which the whole system is constructed. The current mainstream economic thinking is fundamentally based on a single paradigmatic assumption of scarcity by mean of the supposed impossibility of satisfying human material wants, as 'new wants are always emerging'. In this mindset, it seems to make sense for the economic system to promote limitless growth and accumulation under the assumption of unlimited material wants. In the possibility to transcend such a paradigm lies an important potential for leverage in the efforts to solve the fundamental problems that still hold our society from attaining sustainability.
94

A modeling trade-off forecasting environment for military aircraft sustainment

Saltmarsh, Elizabeth 08 June 2015 (has links)
One of the overarching goals for military aircraft sustainment is to keep a high proportion of aircraft available despite the need for maintenance. Traditional solutions to this problem require conservative resource estimates, but this is costly. In recent years an overall paradigm shift towards affordability has created pressure to find other options for achieving high values of fleet level metrics. Past efforts at increasing affordability have had mixed success, and as a result such strategies need to be tested early on in the lifetime of a product, ideally before the product is ever fielded. In order to provide the ability to evaluate the effects of sustainment decisions such as different maintenance paradigms and cost goals, this thesis develops a sustainment modeling environment, known as Sustain-ME, to facilitate open analysis based on the best information available. The goal of creating Sustain-ME is to allow decision makers to define a sustainment scenario and compare different decisions of interest on a common basis. Sustain-ME is a discrete event simulation, which means it efficiently provides a reasonable prediction of operational behavior. This thesis describes the information used to construct Sutain-ME, including the assumptions made for many of the parameters of the modeled sustainment process. It next verifies the behavior of the different elements that make up the sustainment model including operations, maintenance, maintenance paradigms, and the supply chain. Finally a methodology for using SustainME is defined and a demonstration of the types of studies Sustain-ME was built to perform is shown. The demonstration compares three different maintenance paradigms: reactive maintenance, condition based maintenance, and a novel CBM paradigm known as CBM-MiMOSA.
95

Paradigms in Social Media Studies

Gerges, Mina January 2015 (has links)
The aim of this project is to study the level of paradigm development in the domain of social media studies. Based on the works of Kuhn (1970), Pfeffer (1993), and Thompson and Tuden (1959), the level of paradigm development was defined as the degree of consensus regarding: research topics, methods, and theories used in a given field of study. A sample of social media research articles was studied to analyze the level paradigm development within this domain of study. The sample consisted of a group of social media research articles that were published in the top ten journals of communication studies in the last five years. Content analysis methodology was used to analyze the research articles and clusters analysis was utilized in order to investigate the level of paradigm development in this field of study. The analysis confirmed the lack of consensus in the social sciences (Pfeffer, 1993). The level of agreement regarding research methods, theoretical concepts, and research topics used in social media studies was quite low. The lack of consensus in this new domain of study may be explained by two factors. Social media as an academic field is still in its infancy (Van Osch and Coursaris, 2014), and thus it lacks of a shared body of theoretical knowledge that can be used to analyze the phenomenon of social media (Van Osch and Coursaris, 2014; Chong and Xie, 2011; and Khang, Ki, and Ye, 2012). In conclusion, this project suggests that social media studies should aim to develop a high level of paradigm development, since academic fields with high levels of consensus are better organized, have fewer power conflicts, and get more funding (Beyer and Lodhl, 1976; Pfeffer, 1993).
96

The perils of parsimony. "National culture" as red herring?

Macfadyen, Leah P. January 2008 (has links)
This paper discusses the ways in which Hofstede’s model of ‘dimensions of (‘national’) culture’ – and similar models developed in a functionalist paradigm – are problematically used to classify people. It briefly surveys critiques of Hofstede’s research method, but focusses on the dangers of attempting to develop models of culture within a functionalist paradigm. Although such models may be parsimonious and rapidly applied, I argue that they are a poor fit for CATaC investigations of the dynamic and reciprocal interactions between human cultures and technology. Instead, I contend, we must abandon this paradigm, and embrace methodologies that permit meaningfully explorations of the multiple and dynamic conditions influencing the field of cultural practices in human societies. I discuss the merits of ‘articulation’ as theory and method, and offer Hacking’s theory of “dynamic nominalism” as one example.
97

Les valeurs environnementales des enseignants francophones du Nord de l’Ontario et l’accueil qu’ils réservent à la politique d’éducation environnementale

Morneau, Stephane Normand 17 February 2012 (has links)
Le ministère de l’Éducation de l’Ontario a présenté sa nouvelle politique en matière d’éducation environnementale en 2009. Elle implique la participation de tous ceux œuvrant au sein du système éducatif, incluant les enseignants. Dès le départ, les enseignants ne sont pas neutres à l’égard de l’environnement. Les valeurs environnementales préalables des enseignants auront-elles un impact sur l’accueil qu’ils réservent pour cette politique? À l’aide de l’échelle du New Ecological Paradigm développé par Dunlap, Van Liere, Mertig et Jones (2000), cette étude mesure les valeurs environnementales des enseignants d’un conseil scolaire francophone du Nord de l’Ontario et évalue l’accueil qu’ils réservent à la politique d’éducation environnementale pour ensuite vérifier s’il y a une relation entre ces facteurs. Les résultats démontrent que le groupe accueille la politique de façon plutôt favorable. Les valeurs environnementales semblent exercer une influence sur l’attitude qu’adoptent les enseignants face à celle-ci, mais c’est vraisemblablement dans le niveau d’action qu’ils entreprendront que cette influence se manifestera.
98

Weaving the threads of education for sustainability and outdoor education

Irwin, David Brian January 2010 (has links)
Sustainability has become a buzz word of our time, although our developed world community is still coming to terms with what the word really means. Universities and polytechnics in Aotearoa New Zealand will have to change in many ways before sustainability can be considered to occupy a meaningful place in the tertiary education sector. However the change process that sees an organisation moving towards sustainability is complex, and agency for change can be considered on many different levels including the individual identities of staff and students, the identity of managers, and the programme and wider organisational identities constructed by the communities that comprise them. This qualitative research explores education for sustainability within the context of outdoor education using the Bachelor of Adventure Recreation and Outdoor Education (BRecEd) at the Christchurch Polytechnic Institute of Technology (CPIT) (the programme into which the author teaches) as a case study. Participatory action research forms the overarching methodology for a multiple method approach to data collection. The research leans heavily on the lived experiences of staff and students within the programme, is woven with my own reflections, and incorporates many examples of students’ work. The weaving together of these experiences grounds the research and helps bring theory to life. The research reveals the complexity of change towards more sustainable ways of practising outdoor education in an organisational setting. It explores the tensions that are encountered and mechanisms that have allowed for staff and students to engage in education for sustainability in a more meaningful way. The key themes of the research explore the intersection of identity construction processes and change agency, and it is argued these processes are inseparable for those concerned with organisational change towards sustainability.
99

TESTING THE ROLE OF ANXIETY AS AN UNDERLYING MECHANISM OF THE ALCOHOL-AGGRESSION RELATION

Phillips, Joshua Parker 01 January 2007 (has links)
The purpose of this study was to test the hypothesis that acute alcohol consumption facilitates aggression through the reduction of adaptive anxiety/fear responses to danger/threat. Participants were 80 healthy male social drinkers between 21 and 33 years of age. They were randomly assigned to one of four groups: 1) Alcohol/anxiety induction (n=20), 2) Placebo/anxiety induction (n=20), 3) Alcohol only (n=20), and 4) Placebo only (n=20). Anxiety was induced by informing participants that they had to deliver a speech about what they liked and disliked about their body in front of a video camera. A modified version of the Taylor Aggression Paradigm (Taylor, 1967) was used to measure aggressive behavior in a situation where electric shocks were administered to, and received from, a fictitious opponent during a supposed competitive reaction-time task. Results indicated that the anxiety induction was successful in reducing aggression for participants who received alcohol. Results are discussed within the context of a number of theories specifying anxiety as a possible mediator of the alcohol aggression relation.
100

Our Power over Our Power : A paradigm shift in thederegulated power market

Liu, Ning January 2014 (has links)
A higher share of renewable energy in power generation is one of most ambitious goals for sustainable development under the increasing pressure of climate change. On the deregulated electricity market in Sweden, the consumers are able to choose their electricity from a specific supplier and a specific energy source, which gives them the opportunity to execute their consumer power to have positive impacts on increasing energy efficiency and renewable electricity generation by stopping buying electricity produced from fossil fuels. A new paradigm is thus proposed in this paper which provides a new perspective on purchase of the product electricity. The new paradigm makes electricity a specified product for a specific customer, the electricity audited is never mixed with that not audited, because all electricity which is audited can be traced. The aim of this study is to provide a greater understanding of the new paradigm on the deregulated electricity market. By conducting a willingness to pay survey and several deep interviews, it analyzed the main factors hindering the customers’understanding of the new market dynamics in terms of active choice in ‘green’ electricity and stopping buying fossil electricity. The results and discussions show that the new paradigm could facilitate shedding light on some important implications for strategic decision making in power companies, for policy-makers as well as customers.

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