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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.
61

The concept of Lordship in the theology of John M. Frame / John Joseph Barber

Barber, John Joseph January 2014 (has links)
American philosopher and theologian, John M. Frame (1939—) is respected as one of the most outstanding systematic theologians in our day. Likely due to the fact that he is still living, academic scholarship on Frame is virtually non-existent. Still, his writings demand engagement especially in the light of his distinctive Lordship theology, and its unique core idea: perspectivalism, also known as the lordship principle. The aim of this present research is thus to define precisely what “lordship” means to Frame. Deciphering this meaning requires more than explication, but also interrogative interaction. The research will thus begin with a biblical-theological evaluation of the Framian idea of lordship in dialogue with the eminent, Dutch theologian, Abraham van de Beek. It then moves to an evaluation of how perspectivalism affects Frame’s views on ethics, apologetics, and theology of culture. The research in these areas will scrutinize Frame’s corpus as well as examine his views in colloquia with thinkers with shared interests. Because these disciplines are linked in Frame with other areas of his thought, the data also include explications and appraisals of his work in ontology and epistemology. Frame’s lordship principle is linked with a particular methodology. He sums the whole of God and his involvement with his creation according to three perspectives (hence perspectivalism). Those are God’s control, authority and presence. Frame sums the human response to these perspectives according to three related ideas: the existential, normative, and existential. God’s perspectival interaction with his creation, and the human response, by both Christian and non-Christian alike, leads Frame to original outcomes in dogmatics, which are explored in this work. The finding of this research demonstrates a theological approach that bridges both essential and constructive interests. That is to say that, on the one hand, Frame’s method is guided solely by the voice of Scripture while, on the other hand, his lordship principle presents historic Reformed theology afresh in ways previously undiscovered. Frame’s original approach may well set the stage for an awakening of Reformed thought. It is hoped that this seminal work will spark such a revival in theology. / PhD (Dogmatics), North-West University, Potchefstroom Campus, 2015
62

The concept of Lordship in the theology of John M. Frame / John Joseph Barber

Barber, John Joseph January 2014 (has links)
American philosopher and theologian, John M. Frame (1939—) is respected as one of the most outstanding systematic theologians in our day. Likely due to the fact that he is still living, academic scholarship on Frame is virtually non-existent. Still, his writings demand engagement especially in the light of his distinctive Lordship theology, and its unique core idea: perspectivalism, also known as the lordship principle. The aim of this present research is thus to define precisely what “lordship” means to Frame. Deciphering this meaning requires more than explication, but also interrogative interaction. The research will thus begin with a biblical-theological evaluation of the Framian idea of lordship in dialogue with the eminent, Dutch theologian, Abraham van de Beek. It then moves to an evaluation of how perspectivalism affects Frame’s views on ethics, apologetics, and theology of culture. The research in these areas will scrutinize Frame’s corpus as well as examine his views in colloquia with thinkers with shared interests. Because these disciplines are linked in Frame with other areas of his thought, the data also include explications and appraisals of his work in ontology and epistemology. Frame’s lordship principle is linked with a particular methodology. He sums the whole of God and his involvement with his creation according to three perspectives (hence perspectivalism). Those are God’s control, authority and presence. Frame sums the human response to these perspectives according to three related ideas: the existential, normative, and existential. God’s perspectival interaction with his creation, and the human response, by both Christian and non-Christian alike, leads Frame to original outcomes in dogmatics, which are explored in this work. The finding of this research demonstrates a theological approach that bridges both essential and constructive interests. That is to say that, on the one hand, Frame’s method is guided solely by the voice of Scripture while, on the other hand, his lordship principle presents historic Reformed theology afresh in ways previously undiscovered. Frame’s original approach may well set the stage for an awakening of Reformed thought. It is hoped that this seminal work will spark such a revival in theology. / PhD (Dogmatics), North-West University, Potchefstroom Campus, 2015
63

Secure multi-constrained QoS reliable routing algorithm for vehicular ad hoc networks (VANETs)

Hashem Eiza, Mahmoud January 2014 (has links)
Vehicular Ad hoc Networks (VANETs) are a particular form of wireless network made by vehicles communicating among themselves and with roadside base stations. A wide range of services has been developed for VANETs ranging from safety to infotainment applications. A key requirement for such services is that they are offered with Quality of Service (QoS) guarantees in terms of service reliability and availability. Furthermore, due to the openness of VANET’s wireless channels to both internal and external attacks, the application of security mechanisms is mandatory to protect the offered QoS guarantees. QoS routing plays an essential role in identifying routes that meet the QoS requirements of the offered service over VANETs. However, searching for feasible routes subject to multiple QoS constraints is in general an NP-hard problem. Moreover, routing reliability needs to be given special attention as communication links frequently break in VANETs. To date, most existing QoS routing algorithms are designed for stable networks without considering the security of the routing process. Therefore, they are not suitable for applications in VANETs. In this thesis, the above issues are addressed firstly by developing a link reliability model based on the topological and mathematical properties of vehicular movements and velocities. Evolving graph theory is then utilised to model the VANET communication graph and integrate the developed link reliability model into it. Based on the resulting extended evolving graph model, the most reliable route in the network is picked. Secondly, the situational awareness model is applied to the developed reliable routing process because picking the most reliable route does not guarantee reliable transmission. Therefore, a situation-aware reliable multipath routing algorithm for VANETs is proposed. Thirdly, the Ant Colony Optimisation (ACO) technique is employed to propose an Ant-based multi-constrained QoS (AMCQ) routing algorithm for VANETs. AMCQ is designed to give significant advantages to the implementation of security mechanisms that are intended to protect the QoS routing process. Finally, a novel set of security procedures is proposed to defend the routing process against external and internal threats. Simulation results demonstrate that high levels of QoS can be still guaranteed by AMCQ even when the security procedures are applied.
64

CHANGING AMERICA: THE IMPACT OF IMMIGRATION ON WELFARE ATTITUDES AND WELFARE REFORM

Kehrberg, Jason E. 01 January 2013 (has links)
The purpose of my dissertation is to further our understanding of why some states restricted immigrant access to welfare in the 1990s while other states granted immigrants access to social programs. With the passage of the Personal Responsibility Work Opportunity Reconciliation Act (PRWORA), many states diverged from equal access to welfare programs, such as Temporary Assistance to Needy Families (TANF), for immigrants arriving after 1996. Very little scholarly work examines the variance in immigrants’ access to welfare programs. Current research studying welfare attitudes and policy has largely failed to investigate whether and how the influx of immigrants over the last three to four decades has decreased public support for welfare programs and resulted in policies that both decrease benefit levels and restrict access to programs based on citizenship. This is a serious shortcoming because immigration since the 1970s represents the largest population shift since the early 20th century, a change that has increased the size of the underclass and transformed the cultural and racial makeup of theUnited States. Accordingly, in my dissertation, I will examine how changes to the American political environment, immigration levels and the increasing number of immigration media stories, trigger authoritarian attitudes that in turn form a breeding ground supporting restrictive welfare programs. The results from the individual-level analysis provide strong evidence that authoritarians prefer less welfare spending, fewer immigrants, and a waiting period before immigrants can access welfare programs. In addition, authoritarians view immigrants as a threat due to their perceived failure to socially conform to American society. Building on these individual-level results, I find that states with large authoritarian populations are more likely to adopt restrictive welfare policies.
65

Integration of Learning, Situational Power and Goal Constraints Into Time-Dependent Electronic Negotiation Agents

Mok, Wilson Wai Ho January 2002 (has links)
In the past decade, electronic negotiation has become an important research topic in the field of information systems. A desirable goal of negotiation agents is to understand their owners' requirements, and to learn their opponents' behavior, thereby lessening the involvement of human beings. Studies on human negotiation bring out that several issues can affect a human's negotiation behavior, including learning an opponent's behavior, exerting power on an opponent, and setting an individual goal to improve the level of accomplishment. Research on incorporating these issues into negotiation agents is, however, still at an infancy state. We therefore take up this topic in this thesis. Researchers have proposed many different negotiation agents that follow a preset behavior based on human models of negotiation. In this thesis, we consider one such model, known as the time-dependent-tactical model, which is used by human negotiators and in which the values of the negotiating issues are determined based on the time elapsed in the negotiation. A learning mechanism for this model might be beneficial, because this model is frequently used in electronic negotiation. Thus, we propose heuristic algorithms that estimate the parameters of an agent's time-dependent-tactical model, and that then react to the estimated parameters for achieving higher negotiation performance. Besides learning, we incorporate two other factors that have been found to affect a human negotiation outcome. These are situational power, which represents differences in negotiators' status based on market conditions, and goal constraints, which stand for the levels of accomplishment negotiators try to strive for. To validate the impacts of learning, situational power and goal constraints in electronic negotiation, we first present how to integrate these features into negotiation agents, and then conduct simulations. With 187,500 simulation runs, we observe that our learning algorithms are effective in improving both individual and dyadic negotiation performances. For the effects of situational power and goal constraints, we obtain congruent results between human and electronic negotiations. By incorporating learning into situational power and goal constraints, we achieve significant joint effect between learning and situational power as well as that between learning and goal constraints. In summary, this thesis provides three primary contributions to the fields of information systems and electronic-commerce research. First, we have designed algorithms for learning an opponent's negotiation behavior. Second, our learning algorithms are found to be effective in improving negotiation performance. Third, we have shown how learning can be integrated with situational power and goal constraints, although this is not a major focus in this study. Finally, the agreement on the joint effects of learning, situational power and goal constraints between human and electronic negotiations suggests that our integrated design of the agent appears to be effective.
66

Implementation of a flightstrip-less system at Östgöta controlcentral / Implementering av ett stripplöst system på Östgöta kontrollcentral

Glas, Niklas, Hedström, Johannes January 2017 (has links)
Each year the number of flights around the world increases, and to be able to counter the increase of traffic the air traffic control (ATC) and the systems they use to control the traffic must be developed in the same pace. This is something that bigger ATCC’s around the world has gone through and experienced. To be able to maintain or increase the level of safety at the same time as the traffic load increases, you need to do more than just hire more air traffic controllers. The systems in use must always be developed in accordance to new regulations and as well become more effective. This leads to ATCC’s continuously going through changes in the form of implementations of new ATC systems. The research and development are moving forward in an immense speed, and the latest decade’s ATC in many places has gone from writing down information on paper strips to the more modern strip less systems. This has resulted in a remarkable increase of effectivity and safety in ATC. In Sweden, there are three bigger ATCC’s: Stockholm ATCC, Malmö ATCC and ÖKC. In both Stockholm and Malmö, the strip less systems are already in use while ÖKC uses a less developed ATC system. It is economically demanding to continuously keep the ATCC’s up to date with the most modern systems, and the controlling factor is demand. In a working environment where safety is of the highest concern, you need a carefully prepared method of both updating, implementing, and testing new systems, providing personnel with training and sequentially implementing it. To achieve this, you need to do thoroughly review the concerned ATCC before, during and after an implementation. With the help of interviews, surveys and literature studies the working methods and processes have been examined and analyzed on ÖKC. By gathering opinions from the personnel at ÖKC, a good understanding of ÖKC has been attained. The unique thing about ÖKC’s air traffic, compared to the other ATCC’s, is that a big portion of their air traffic is military flights, which leads to different traffic situations. This study has been conducted as a first step before an implementation, with the intention of analyzing how a strip less system affects ÖKC with its current working methods and processes, and the connection to situational awareness. The study intends to be used as a foundation to future inquiries of how ÖKC will be affected by an implementation of this kind. It also contains opinions from operative personnel at ÖKC, and how they feel about a change of an ATC system.
67

The effects of fatigue on position determination and cognitive workload using a visual and 3-dimensional auditory display

Brown, Eric L. 06 1900 (has links)
Approved for public release; distribution is unlimited / This study compares the effects of a visual and a 3-dimensional auditory display on primary and secondary task performance, mood, and mental workload at incremental levels of sleep deprivation. It is based on a study conducted by the Army Research Laboratory, Cognitive Science Branch, Aberdeen, Maryland, from 12 Marines performing land navigational tasks in two helmet-mounted display (HMD) modes; visual and 3-dimensional auditory, for a 48 hour period. The results indicate that performance under sleep deprivation is significantly impacted in both modalities; however, performance in the primary task was more degraded in the 3-D auditory modality. Additionally, Marines were more likely to experience degraded performance in the secondary task with increased sleep deprivation. The recommendations address the need to design HMDs that will not overburden sensory channels and the concern for military leaders to understand the additional demands imposed on solders in a HMD environment. / Captain, Signal Corps, United States Army
68

Validating a method for enhanced communications and situational awareness at the incident command level

Graham, James H. 03 1900 (has links)
CHDS State/Local / The availability and interoperability of communications at an incident scene have long been recognized as high-priority problems that need to be addressed to improve our nation's Homeland Security and preparedness. This thesis describes a proposed methodology to address these issues at the Incident Command level while enhancing situational awareness and information sharing. The thesis analyzes the results of a research project funded by the Department of Homeland Security at the University of Louisville's IT Research Center for Homeland Security. The problem being addressed is that the decision-maker with the boots on the ground, the Incident Commander, needs relevant information in the early stages of the emergency at the incident scene and an efficient way to communicate with other resources. The research project fielded a prototype solution based on readily available commercial off-the-shelf components integrated in a man-portable configuration to provide maximum flexibility, lower costs, and ease of operations. A proposed concept of operations in various prevention and response environments was also recommended in the thesis after analyzing the results of several field exercises and interviews with users. / Director, Information Technology Resource Center, University of Louisville
69

360 degree port MDA - a strategy to improve port security

Leary, Timothy P. 09 1900 (has links)
CHDS State/Local / Our national security and prosperity depend in part on secure and competitive ports. Effective public and private sector collaboration is needed in a world with myriad security challenges and fierce global competition. Although steps have been taken in the years since 9/11 to realize these twin goals, much more needs to be done. The current maritime domain awareness (MDA) paradigm needs to be expanded to provide comprehensive awareness of intermodal operations in our ports. An effective Open Source Intelligence (OSINT) program that succeeds in leveraging intermodal data is fundamental to better port-level MDA. Developing effective port level MDA and using it to enhance the security of our ports relies on the effective organization of public and private sector resources. The joint operations centers called for in the SAFE Port Act, once broadened to include key intermodal players, provide an excellent organizational model to pursue enhanced port security. / Comptroller, U.S. Coast Guard (USCG)
70

Metrics of METOC forecast performance and operational impacts on carrier strike operations

Callahan, Jeremy 09 1900 (has links)
We have developed metrics of the performance and operational impacts of METOC support to strike operations conducted on operational aircraft carriers (CVs). Our goal was to assess that support and make recommendations on improving it. We adapted an existing automated real time METOC metrics system, which was developed for land based training missions, for use on CVs by developing a new data collection form, new metrics, and new collection, analysis, and reporting architecture for the remote entering of sensitive mission data without compromise. The weather support element of a CV, the OA division, does not provide strike mission planning support, but does provide situational awareness to pilots. Our system allows that situational awareness to be measured and assessed using metrics that quantify the performance of the forecasts, the relationship of the forecasts to the mitigating actions taken by pilots due to adverse weather conditions, and the effects of individual weather phenomena on the execution of strike missions. A key element of the data collection, analysis, and reporting system developed in this study is the collection of METOC related data from pilots during their intelligence debriefings. This system is readily adaptable for the assessment of METOC support to other warfare areas.

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