Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 53 for “"QCA"”.
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Emerging Design Methodology And Its Implementation Through Rns And Qca
… reduce the size, Quantum-Dot Cellular Automata (QCA) has become one of the new nanotechnology research field and has received a lot of attention within the engineering community due to its small size and ultralow power. </p> <p>In the last decade, residue number system has received increased …
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Expanding the Network Evaluation Toolkit: Combining Social Network Analysis & Qualitative Comparative Analysis
… SNA with qualitative comparative analysis (QCA), a configurational comparative method. Using QCA, researchers can tease out which conditions are necessary or sufficient to produce an outcome. I analyzed a collective action network of community-based resource management groups in Hawaii using …
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Are There Sex Differences in Behavioral Predictors of Successful Weight Loss Maintenance?
… a crisp set qualitative comparative analysis (QCA) characterized individuals' weight changes and behaviors. No sex difference was found in clinically significant WL or in the interaction of sex and behaviors on weight change; however, QCA evidence suggests men and women may approach WTLM with …
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Explaining state cooperation with the international criminal courts and tribunals
… to elites).The qualitative comparative analysis (QCA) relies on an original dataset of 34 cases related to the cooperation of Kenya, Uganda, Serbia and Croatia cooperation with the International Criminal Court and the Yugoslav Tribunal was created. By using two-step QCA to account for the …
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Social enterprise business models: identifying the trading concepts that inform them.
… mapping and Qualitative Comparative Analysis (QCA). These research methods combine qualitative insights with quantitative analysis, provide transparent research processes, allow for contextual generalizations, and offer deeper insight into an increasingly important sector of the economy. …
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FFA membership growth compared to a changing and growing student population
… method of Qualitative Comparative Analysis (QCA), student population growth and demographic changes in student race/ethnicity, locale, and free and reduced-price lunch were compared to FFA membership growth by state and region. The QCA method was also used to measure the effects of the …
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Conditional and Differential? Locating the Role of Civil Society in Anti-corruption Policy Outcomes
… research is Qualitative Comparative Analysis (QCA). Much more limited is the application of QCA in understanding civil society’s anticorruption role. The supposed place of civil society in anti-corruption is even more compounded by contemporary events that directly assault their presence in …
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An Investigation of the Multiple Scattering of Waves in Two-Dimensional Random Media
… of the quasicrystalline approximation (QCA) and coherent potential approximation (CPA) theories. For the transient case, a random distribution of additional point masses was added to act as the scatterers. The mesh was subjected to an impulse force at one end, and the measured phase …
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Aligning Public-Private Partnership Contracts with Public Objectives for Transportation Infrastructure
… Through qualitative comparative analysis (QCA), a recently-developed method for evaluating qualitative data quantitatively, patterns of PPP contract strategies which correspond to three common policy objectives--achieving a specific toll rate, managing congestion, and minimizing state …
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Prediction of college performance for freshmen at Virginia Polytechnic Institute
… only 34 percent of the variation in first year QCA among males. High school rank contributed most to the prediction; verbal score was found to be a very poor predictor. Predictions were more reliable for accumulative year performance than for first quarter only. Prediction error is discussed and …
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Ecology and emergence: Understanding factors that drive variation in process quality and clinical outcomes in general practice
… analysed using Qualitative Comparative Analysis (QCA) against an empirically derived explanatory framework. Theory development draws on complexity science, especially complex adaptive systems theory, and the disciplines of social epidemiology and health ecology. Results show that a series of …
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Ecology and emergence: Understanding factors that drive variation in process quality and clinical outcomes in general practice
… analysed using Qualitative Comparative Analysis (QCA) against an empirically derived explanatory framework. Theory development draws on complexity science, especially complex adaptive systems theory, and the disciplines of social epidemiology and health ecology. Results show that a series of …
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The Persistence of African-American Males in the College of Engineering at Virginia Tech
… categorized as juniors and/or seniors with a 2.5 QCA or higher; (3) Satisfactory-Persistent Group, African-American male engineering students who were categorized as juniors and/or seniors with a 2.0 - 2.5 QCA; (4) Unsatisfactory-Persistent Group, African-American male engineering students who …
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Restructuring athletic graduation analysis at Virginia Tech
… included those athletes, with at least a 2.0 QCA, who departed Virginia Tech between 1975 and 1985. An additional purpose was to determine why these athletes left. There were seventy eligible participants who received questionnaires via mail. Forty questionnaires were returned, of which, …
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CAN ISLAM AND DEMOCRACY COEXIST? A CROSS-NATIONAL ANALYSIS OF ISLAMIC INSTITUTIONS IN THE MUSLIM WORLD
… Fuzzy-Set Qualitative Comparative Analysis (FS/QCA) and focused case study analysis. FS-QCA offers an innovative and robust approach to identify configurationally complex factors while discerning the emerging patterns displayed by medium size (N=49) cases. To further explain the complex …
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Understanding the Role of Non-federal Funding Match on the Effectiveness of a U.S. Strategy to Strengthen Academic Research Competitiveness Nationwide
… match. Qualitative Comparative Analysis (QCA) was used to identify conditions that interact and work together (conjunctural causation) to influence the outcome and describe multiple causal pathways (equifinality) to state success. It specifically allowed for testing for necessary and …
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Validation of first pass magnetic resonance myocardial perfusion imaging using fractional flow reserve
… and quantitative coronary angiography (QCA). This previous work has been summarised in a meta-analysis which estimated the sensitivity and specificity to be 84% and 85% respectively. The majority of previous studies have used QCA or visual estimation of stenosis severity to determine the …
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A government nutrition education course taught by personalized system of instruction
… exam performance: quality cumulative average (QCA), the number of unit test retakes, total unit test errors and working rate. High ability students out-performed low ability students on the final exam. Students with fewer test retakes and errors generally did better on the final exam than …
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Organizational Collaborative Motivations and Purpose-oriented Networks: Linking Organizational Theories with Network Characteristics
… crisp-set qualitative comparative analysis (cs-QCA) to refine the theoretical framework. The two-phase study indicates that organizations with different collaborative motivations indeed prefer different kinds of networks. The results also identify multiple pathways for each motivation and which …
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Novel Applications of Terahertz Quantum Cascade Lasers: Gas Spectroscopy, Active Control & Nearfield Imaging
… it becomes a quantum cascade amplifier (QCA), which compared with a THz QCL can enhance the sensitivity in both spectroscopy and imaging applications. A THz QCA has been achieved by adhering an antireflection-coated Si lens to the QCL facet and is then used as the source for THz gas …
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