Global ETD Search

11	Index Theory and Positive Scalar Curvature / Index-Theorie und positive Skalarkrümmung Pape, Daniel 23 September 2011 (has links) No description available. 510 Mathematik EFIXXX Mathematics and Computer Science Index-Theorie Skalarkrümmung Dirac-Operator grobe Geometrie grober Index Gromov-Lawson-Rosenberg Vermutung index theory scalar curvature Dirac operator coarse geometry coarse Index Gromov-Lawson-Rosenberg conjecture 31.55 31.65 31.61
12	Pesquisa e aplicação de método de medição do desenvolvimento cognitivo de discentes de cursos de computação / Research and application of measurement method of cognitive development to computer majors Pessoni, Vinicius Vieira 31 March 2016 (has links) Submitted by Cássia Santos (cassia.bcufg@gmail.com) on 2016-06-09T14:43:35Z No. of bitstreams: 2 Dissertação - Vinicius Vieira Pessoni - 2016.pdf: 4679564 bytes, checksum: a6d0ecb3b97943dbc56c5ee80eb591c3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-06-09T15:38:32Z (GMT) No. of bitstreams: 2 Dissertação - Vinicius Vieira Pessoni - 2016.pdf: 4679564 bytes, checksum: a6d0ecb3b97943dbc56c5ee80eb591c3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2016-06-09T15:38:32Z (GMT). No. of bitstreams: 2 Dissertação - Vinicius Vieira Pessoni - 2016.pdf: 4679564 bytes, checksum: a6d0ecb3b97943dbc56c5ee80eb591c3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2016-03-31 / Fundação de Amparo à Pesquisa do Estado de Goiás - FAPEG / Learning difficulties in computing courses is a situation perceived in diverse universities from different countries, cultures and backgrounds. These difficulties directly affect achievement rates and increase course evasion. We believe in the existence of a foundation of cognitive processes, that without it, even the most motivated student would have trouble to transform the received information into knowledge. This work has focused mainly on the research of candidate methods for cognitive processes assessment with a strong background theory. With this kind of information would be possible to devise cognitive interventions, in order to evolve students cognitive level, and consequently, raise their success rates. A systematic review was conducted and among the many researched methods we selected Lawson Classroom Test of Scientific Reasoning - LCTSR. Authorized by its author, we conducted the first translation of LCTSR to Brazilian Portuguese and administered to students of three undergraduate computing courses: Information Systems, Computer Science and Software Engineering.We also present results of its administration that we consider important to reinforce the above suggested strategy / Dificuldades de aprendizado nos cursos de computação são um desafio observado através dos anos, em diversas universidades de diferentes países, culturas e formações. Essas dificuldades se refletem em baixas taxas de rendimento, altas taxas de evasão e influenciam negativamente no interesse dos discentes pelos cursos. Acredita-se que exista uma fundamentação interna de processos cognitivos, que sem ela, mesmo o estudante mais motivado teria dificuldades para transformar informação em conhecimento. O foco do presente trabalho está na pesquisa de métodos candidatos para a medição dos processos cognitivos que possuam uma sólida teoria de base. Espera-se ser possível não só identificar, caracterizar e aferir os processos cognitivos, mas também oferecer abordagens factíveis para adquiri-los e desenvolvê-los, melhorando, consequentemente, o ensino. Uma revisão sistemática foi conduzida, e dentre os diversos métodos identificados, o instrumento Lawson Classroom Test of Scientific Reasoning - LCTSR foi selecionado para aplicação. Autorizado por seu autor, a primeira tradução para Português brasileiro foi realizada e o exame foi ministrado a três cursos de graduação de computação: Sistemas de Informação, Ciências da Computação e Engenharia de Software. O caráter inédito dessa pesquisa se apresenta em duas vias: ao trazer a primeira versão em Português Brasileiro do instrumento; ao disponibilizar os dados da aplicação, ampliando o conhecimento sobre o nível cognitivo dos estudantes. Dificuldades de aprendizado Níveis cognitivos Desenvolvimento cognitivo Exame do raciocínio científico Metacognição Learning difficulties Cognitive levels Cognitive development Metacognition
13	Stochastic Runge–Kutta Lawson Schemes for European and Asian Call Options Under the Heston Model Kuiper, Nicolas, Westberg, Martin January 2023 (has links) This thesis investigated Stochastic Runge–Kutta Lawson (SRKL) schemes and their application to the Heston model. Two distinct SRKL discretization methods were used to simulate a single asset’s dynamics under the Heston model, notably the Euler–Maruyama and Midpoint schemes. Additionally, standard Monte Carlo and variance reduction techniques were implemented. European and Asian option prices were estimated and compared with a benchmark value regarding accuracy, effectiveness, and computational complexity. Findings showed that the SRKL Euler–Maruyama schemes exhibited promise in enhancing the price for simple and path-dependent options. Consequently, integrating SRKL numerical methods into option valuation provides notable advantages by addressing challenges posed by the Heston model’s SDEs. Given the limited scope of this research topic, it is imperative to conduct further studies to understand the use of SRKL schemes within other models. Mathematics Matematik
14	The Nashville Civil Rights Movement: A Study of the Phenomenon of Intentional Leadership Development and its Consequences for Local Movements and the National Civil Rights Movement Lee, Barry Everett 09 April 2010 (has links) The Nashville Civil Rights Movement was one of the most dynamic local movements of the early 1960s, producing the most capable student leaders of the period 1960 to 1965. Despite such a feat, the historical record has largely overlooked this phenomenon. What circumstances allowed Nashville to produce such a dynamic movement whose youth leadership of John Lewis, Diane Nash, Bernard LaFayette, and James Bevel had no parallel? How was this small cadre able to influence movement developments on local and a national level? In order to address these critical research questions, standard historical methods of inquiry will be employed. These include the use of secondary sources, primarily Civil Rights Movement histories and memoirs, scholarly articles, and dissertations and theses. The primary sources used include public lectures, articles from various periodicals, extant interviews, numerous manuscript collections, and a variety of audio and video recordings. No original interviews were conducted because of the availability of extensive high quality interviews. This dissertation will demonstrate that the Nashville Movement evolved out of the formation of independent Black churches and college that over time became the primary sites of resistance to racial discrimination, starting in the Nineteenth Century. By the late 1950s, Nashville’s Black college attracted the students who became the driving force of a local movement that quickly established itself at the forefront of the Civil Rights Movement. Nashville’s forefront status was due to an intentional leadership training program based upon nonviolence. As a result of the training, leaders had a profound impact upon nearly every major movement development up to 1965, including the sit-ins, the Freedom Rides, the March on Washington, the birth of SNCC, the emergence of Black Power, the direction of the SCLC after 1962, the thinking of Dr. Martin Luther King, Jr., the Birmingham campaign, and the Selma voting rights campaign. In addition, the Nashville activists helped eliminate fear as an obstacle to Black freedom. These activists also revealed new relationship dynamics between students and adults and merged nonviolent direct action with voter registration, a combination considered incompatible. Bernard LaFayette Diane Nash James Bevel C.T. Vivian Kelly Miller Smith Nashville Civil Rights Movement John Lewis Diane Nash James M. Lawson sit-ins Freedom Rides Selma to Montgomery march Birmingham Movement History
15	Magnetic signature characterization of a fixed-wing vertical take-off and landing (VTOL) unmanned aerial vehicle (UAV) Hansen, Cody Robert Daniel 17 December 2018 (has links) The use of magnetometers combined with unmanned aerial vehicles (UAVs) is an emerging market for commercial and military applications. This study presents the methodology used to magnetically characterize a novel fixed-wing vertical take-off and landing (VTOL) UAV. The most challenging aspect of integrating magnetometers on manned or unmanned aircraft is minimizing the amount of magnetic noise generated by the aircraft’s onboard components. As magnetometer technology has improved in recent years magnetometer payloads have decreased in size. As a result, there has been an increase in opportunities to employ small to medium UAV with magnetometer applications. However, in comparison to manned aviation, small UAVs have smaller distance scales between sources of interference and sensors. Therefore, more robust magnetic characterization techniques are required specifically for UAVs. This characterization determined the most suitable position for the magnetometer payload by evaluating the aircraft’s static-field magnetic signature. For each aircraft component, the permanent and induced magnetic dipole moment characteristics were determined experimentally. These dipole characteristics were used to build three dimensional magnetic models of the aircraft. By assembling the dipoles in 3D space, analytical and numerical static-field solutions were obtained using MATLAB computational and COMSOL finite element analysis frameworks. Finally, Tolles and Lawson aeromagnetic compensation coefficients were computed and compared to evaluate the maneuver noise for various payload locations. The magnetic models were used to study the sensitivity of the aircraft configuration and to simultaneously predict the effects at potential sensor locations. The study concluded by predicting that a wingtip location was the area of lowest magnetic interference. / Graduate unmanned aerial vehicle UAS unmanned aircraft system UAV VTOL Vertical Take-off and Landing MAD magnetic anomaly magnetic anomaly detection magnetic characterization magnetic signature magnetic signature characterization drone aeromagnetic survey anti-submarine warfare ASW UXO detection geomagnetic survey tolles and lawson COMSOL
16	The Social Construction of Economic Man: The Genesis, Spread, Impact and Institutionalisation of Economic Ideas Mackinnon, Lauchlan A. K. Unknown Date (has links) The present thesis is concerned with the genesis, diffusion, impact and institutionalisation of economic ideas. Despite Keynes's oft-cited comments to the effect that 'the ideas of economists and political philosophers, both when they are right and when they are wrong, are more powerful than is commonly understood'(Keynes 1936: 383), and the highly visible impact of economic ideas (for example Keynesian economics, Monetarism, or economic ideas regarding deregulation and antitrust issues) on the economic system, economists have done little to systematically explore the spread and impact of economic ideas. In fact, with only a few notable exceptions, the majority of scholarly work concerning the spread and impact of economic ideas has been developed outside of the economics literature, for example in the political institutionalist literature in the social sciences. The present thesis addresses the current lack of attention to the spread and impact of economic ideas by economists by drawing on the political institutionalist, sociological, and psychology of creativity literatures to develop a framework in which the genesis, spread, impact and institutionalisation of economic ideas may be understood. To articulate the dissemination and impact of economic ideas within economics, I consider as a case study the evolution of economists' conception of the economic agent - "homo oeconomicus." I argue that the intellectual milieu or paradigm of economics is 'socially constructed' in a specific sense, namely: (i) economic ideas are created or modified by particular individuals; (ii) economic ideas are disseminated (iii) certain economic ideas are accepted by economists and (iv) economic ideas become institutionalised into the paradigm or milieu of economics. Economic ideas are, of course, disseminated not only within economics to fellow economists, but are also disseminated externally to economic policy makers and business leaders who can - and often do - take economic ideas into account when formulating policy and building economic institutions. Important economic institutions are thereby socially constructed, in the general sense proposed by Berger and Luckmann (1966). But how exactly do economic ideas enter into this process of social construction of economic institutions? Drawing from and building on structure/agency theory (e.g. Berger and Luckmann 1966; Bourdieu 1977; Bhaskar 1979/1998, 1989; Bourdieu 1990; Lawson 1997, 2003) in the wider social sciences, I provide a framework for understanding how economic ideas enter into the process of social construction of economic institutions. Finally, I take up a methodological question: if economic ideas are disseminated, and if economic ideas have a real and constitutive impact on the economic system being modelled, does 'economic science' then accurately and objectively model an independently existing economic reality, unchanged by economic theory, or does economic theory have an interdependent and 'reflexive' relationship with economic reality, as economic reality co-exists with, is shaped by, and also shapes economic theory? I argue the latter, and consider the implications for evaluating in what sense economic science is, in fact, a science in the classical sense. The thesis makes original contributions to understanding the genesis of economic ideas in the psychological creative work processes of economists; understanding the ontological location of economic ideas in the economic system; articulating the social construction of economic ideas; and highlighting the importance of the spread of economic ideas to economic practice and economic methodology. 410401 Design Theory 349901 Political Economy 370000 Studies in Human Society 340302 History of Economic Thought 349900 Other Economics 410402 Design Innovation 360201 Public Policy 360000 Policy and Political Science 380100 Psychology 360100 Political Science 360200 Policy and Administration 370101 Social Theory 370102 Social Policy and Planning 340100 Economic Theory genesis spread diffusion impact institutionalisation economic ideas idea ideation psychology of creativity Wallas Wertheimer stage model productive thinking creative creativity process economic economics sociology social methodology methodological self-altering self-fulfilling self-denying prophecy belief reflexive reflexivity institution institutionalise institutionalised social construction Berger Luckmann Bhaskar critical realism Lawson Bordieu habitus field spread impact ideation ideational structure social structure action creativity creative economists sociology philosophy of science homo economicus homo oeconomicus economic man economic agent rational economic man man lucas critique Goodhart's law Keynes Marx Mill Hayek Hicks Samuelson Walras Jevons Arrow Debreu Samuelson Merton sociology of economics sociology of scientific knowledge SSK Holton prediction control reflexive prediction reflexivity Whitley Mackie canonization Henshel Grunberg Modigliani Morgenstern Lucas Muth Simon Blyth Hall Sikkink Hira Hood institutionalize institutionalized socialise socialisation internalise internalisation internalization socialization behaviour behavior Thomas theorem expectations stage model productive thinking evolution

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