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Tesis sobre el tema "35L05"

Autor: Grafiati

Publicado: 25 de mayo de 2024

Última modificación: 31 de julio de 2025

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1

Enniss, Harris. "A Refined Saddle Point Theorem and Applications." Scholarship @ Claremont, 2012. https://scholarship.claremont.edu/hmc_theses/33.

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Under adequate conditions on $g$, we show the density in $L^2((0,\pi),(0,2\pi))$ of the set of functions $p$ for which \begin{equation*} u_{tt}(x,t)-u_{xx}(x,t)= g(u(x,t)) + p(x,t) \end{equation*} has a weak solution subject to \begin{equation*} \begin{aligned} u(x,t)&=u(x,t+2\pi)\\ u(0,t)&=u(\pi,t)=0. \end{aligned} \end{equation*} To achieve this, we prove a Saddle Point Principle by means of a refined variant of the deformation lemma of Rabinowitz. Generally, inf-sup techniques allow the characterization of critical values by taking the minimum of the maximae on some particular class of se

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2

Mokhtari, Yacine. "Stabilisation et contrôle de quelques systèmes hyperboliques." Electronic Thesis or Diss., Bourgogne Franche-Comté, 2021. http://www.theses.fr/2021UBFCD024.

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Cette thèse est consacrée à l’étude de deux problèmes issus de la théorie du contrôle des EDP. Dans un premier temps, on étudie le comportement asymptotique de la solution du système de von Kàrmàn viscoélastique unidimensionnel avec retard. On montre que ce dernier est bien posé dans un espace fonctionnel convenable en utilisant la méthode de Faedo-Galerkin. Pour établir notre résultat de stabilité, on utilise la méthode de Lyapunov en construisant une fonctionnelle adéquate. Dans un deuxième temps, on étudie le problème de la contrôlabilité et de la stabilisation par le bord pour l’équation d

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3

Skipper, Emma Sue. "Investigating the genetic control of postharvest shelf life and vitamin C content in broccoli (Brassica oleracea var. italica)." Thesis, University of Warwick, 2010. http://wrap.warwick.ac.uk/35605/.

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Broccoli (Brassica oleracea var. italica) is a popular vegetable, known for its nutritional benefits. However, the marketability of broccoli is limited by a short shelf life. Broccoli is susceptible to rapid postharvest senescence, which causes visible head yellowing and wilting from dehydration. Visible quality loss is also accompanied by a decline in nutrients, resulting in a product with reduced postharvest nutritional value. These factors combined cause broccoli to become unmarketable, leading to severe wastage in the retail chain. Postharvest yellowing in broccoli has been shown to be con

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4

McDonald, Paul Charles. "Cryogenically cooled amplifiers for deep space communication." Thesis, University of Southampton, 2001. https://eprints.soton.ac.uk/35405/.

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5

Vignaga, Elisa. "The effect of biofilm colonization on the stability of non-cohesive sediments." Thesis, University of Glasgow, 2012. http://theses.gla.ac.uk/3505/.

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In the past decades, engineers have started to realize the importance of the interaction between vegetation, biota and water flow, in riverine and marine environments; a discipline that has been named “Eco-Hydraulics”. Scientists have valued this coupled phenomenon for much longer than their engineering colleagues. As early as 1970, marine researchers presented the evidence that colonies of micro-organisms might alter the stability of fine cohesive sediments (Neuman et al., 1970). However traditional models of sediments transport (e.g. Shields, 1936) have been derived using abiotic sediments a

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6

Mazzoli, Marco. "Market concentration, credit institutions and the macroeconomy." Thesis, University of Warwick, 1994. http://wrap.warwick.ac.uk/3505/.

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Chapter one is a brief discussion of a few methodological premises. The second chapter is meant to show (by means of a theoretical analysis) the effective macroeconomic relevance of oligopsony in the market for credit. This is done by using two models. In the first (simplified) model - where the behaviour of the supply function of bank credit to industrial firms is captured by a "Cobb-Douglas" reduced form - an exogenous decrease in the market power of the industrial firms on the credit market increases the effectiveness of monetary policy. In the second model, where the banking sector behaves

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7

Thomas, John Christopher. "Footwashing in John 13 and the Johannine community." Thesis, University of Sheffield, 1990. http://etheses.whiterose.ac.uk/3505/.

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This dissertation examines John 13: 1-20, the pericope which describes Jesus washing the feet of his disciples. For a variety of reasons, there is no scholarly consensus concerning the meaning of this passage. In addition, very little reflection has been devoted to the place religious footwashing may have held in the Johannine community. This dissertation reexamines the fundamental issues raised by the passage and investigates the likelihood that footwashing was a community rite. Chapter one gives an overview of the prominent interpretations of John 13: 1-20 in the history of interpretation. T

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8

Harrington, Jon. "A politicised epistemology and its effects upon universities and their management of societal ontology." Thesis, Northumbria University, 2009. http://nrl.northumbria.ac.uk/3505/.

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In recent years the universities have changed from pre-enlightenment "protectors" of societal knowledge to typically modern "business" orientated bureaucracies. It is argued that as a consequence, their status has also changed from one of independent "observer" into that of "product producer"; driven particularly by their newly adopted managerialistic principles, aimed at making them more "business" orientated. This has been fuelled by the domination of a scientistic (Positivist) epistemology throughout the university sector, which emerged from an important philosophical debate, in the sixties

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9

Ranger, Graham Frank. "What are the professional development needs of Heads of international schools in India and how may they be met?" Thesis, Durham University, 2012. http://etheses.dur.ac.uk/3505/.

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What are the professional development needs of Heads of international schools in India and how may they be met? Fuelled by almost a decade of high economic growth, the growth in number of international schools in India is at an unprecedented high. Increasingly, schools are opening to serve the long-term resident as well as the expatriate population. The fastest area of growth is in proprietorial schools, owned and governed by business entrepreneurs. Invariably such schools look for an overseas curriculum, usually through the International Baccalaureate programme. International schools are a la

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10

Landesman, Tucker. "Remaking Rio de Janeiro through "favela integration" : the politics of mobility and state space." Thesis, London School of Economics and Political Science (University of London), 2016. http://etheses.lse.ac.uk/3505/.

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This thesis examines how states develop and implement urban planning and governance policies and programmes in response to segregation and socio-spatial inequalities. Rio de Janeiro has long been constructed as both a “marvellous city” and as strictly “divided” between the so-called formal city and the self-built favelas that developed into “consolidated” neighbourhoods. While never granted full legal tenure and continuously denied basic rights as guaranteed in the 1988 “Citizens’ Constitution,” public policy in the late twentieth century recognised the permanence of the favelas and state inte

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11

Gibbs, Raelton. "Standing in the shadows : faith, homelessness and troubled lives." Thesis, University of East London, 2013. http://roar.uel.ac.uk/3505/.

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This research studies five homeless people’s experience focusing on two key research questions - what is the place of faith and a faith based organisation in the lives and minds of people using the service and what does an in depth analysis of the emotional biographies of a gr oup of homeless people tell us about the psychic, material and spiritual needs that they bring to the centre? Each person interviewed was of no faith or a different faith to the host organisation. Using Biographical Narrative Interpretive Method and Grounded Theory the research generated in depth insights into the life e

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12

Briard, Jennie Grace. "The Rational Design and Use of Novel Small-Molecule Ice Recrystallization Inhibitors for the Cryopreservation of Hematopoietic Stem Cells and Red Blood Cells." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35005.

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Over the past few decades, there has been an increase in the development of new cellular therapies used for the treatment of various conditions. Thus, the rapid development of therapies requiring transfusion and transplantation of cells has resulted in a need to preserve these cellular therapy products. Cryopreservation is the only currently used method for the long-term storage of cells. The most commonly used cryoprotectants are 10% dimethyl sulfoxide (DMSO) for hematopoietic stem cells (HSCs) and 40% glycerol for red blood cells (RBCs). DMSO fails to protect the functionality of HSCs after

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13

Lefebvre, Claudine. "Presence, Bioconcentration and Fate of Galaxolide and Tonalide Fragrances in the North Saskatchewan River, Edmonton." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35105.

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Synthetic musks are incorporated extensively in personal care products to improve their scent, increase their fragrance stability, and prolong their shelf-life. As a consequence, these persistent musks are being released at a considerable rate by wastewater treatment plants and are frequently detected in surface water, bottom sediment, air, and aquatic biota near urban areas. In addition to their hydrophobicity, two synthetic musks, Galaxolide (HHCB) and Tonalide (AHTN), were reported to cause endocrine disruption in fish species. Although most of the toxic effects in past studies were observe

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14

Glynn, Brittany A. "A Phenomenological Exploration of Joy during Zumba Exercise: Form, Feeling, and Flow(s) of E-motion." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35205.

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The purpose of this doctoral dissertation was to explore the experiences of joy during Zumba exercise. A hermeneutic phenomenological methodology was employed to explore the essential structures or essence(s) of joy. Seven long-term Zumba patrons (one male, six females) participated in this study. Each participant engaged in three phenomenological interviews, observation by the principal investigator, and were invited to keep a journal of their Zumba experiences throughout the duration of the five-month study. One final focus group was conducted at the end of the individual interviews, which f

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15

Barnes, Christopher. "Cretaceous-Paleogene Low Temperature History of the Southwestern Province, Svalbard, Revealed by (U-Th)/He Thermochronometry: Implications for High Arctic Tectonism." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35305.

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The High Arctic has been a complex region of collisional and extensional tectonism through the Mesozoic and Cenozoic. Svalbard, the sub-aerial exposure of the northwestern Barents Shelf, is an excellent natural laboratory investigating for High Arctic tectonism. Using apatite and zircon (U-Th)/He low-temperature thermochronometry combined with geological constraints, we resolve Cretaceous through Paleogene time-temperature histories for four regions of the Southwestern Province. Our results indicate a temperature gradient from south to north of ~185°C to >200°C, respectively, as a consequence

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16

Paulin, Christine Charlotte. "Articulation entre facteurs contextuels relatifs aux mécanismes délibératifs et processus de formulation des politiques publiques : le cas des politiques sociales au Nouveau-Brunswick." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35505.

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Cette recherche se penche sur l’analyse comparée de deux cas particuliers de politiques publiques au Nouveau-Brunswick : la politique familiale et la politique sur la réduction de la pauvreté. Elle pose la question suivante : Comment les facteurs contextuels influencent-ils le processus de formulation des politiques sociales mené à l’aide d’instruments délibératifs? S’appuyant sur les fondements méthodologiques de la recherche inductive, elle s’inscrit dans la continuité des travaux menés dans le domaine de la démocratie délibérative et des instruments d’action publique et vient ainsi enrich

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17

Lummiss, Megan. "Self-Perceptions of Twice-Exceptional Students: The Influence of Labels and Educational Placement on Self-Concept for G/LD Post-Secondary Students." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35605.

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Research has shown self-concept to be a significant influence of later success in life, yet studies have rarely focused on the perceptions of students in all educational placements and achievements – specifically, those identified as gifted and with a learning disability (G/LD) (Rudasill, Capper, Foust, Callahan, & Albaugh, 2009). Adopting a qualitative case study approach, and guided by the Marsh/Shavelson model of self-concept (1985) and the Social Identity Theory (1986), this study explored 1) how G/LD students perceive the development of his or her self-concept over time and 2) how labelli

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18

Chen, Liyu. "A Case Study of Dissolved Oxygen Characteristics in a Wind-Induced Flow Dominated Shallow Stormwater Pond Subject to Hydrogen Sulfide Production." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35805.

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Stormwater ponds (SWPs) are becoming increasingly important due to the negative impacts on flood mitigation and water quality control that results from rapid urbanization. These ponds are not only designed to control the discharge of large precipitation and snow melt events, but also to mitigate the water quality of the retained stormwater. Consequently, improper design and maintenance may lead to hypoxic conditions in SWPs, which result in poor water quality and generation of noxious gases. Riverside South Stormwater Pond II (RSPII) in Ottawa periodically experiences low dissolved oxygen (DO)

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19

Meng, Fanqin. "Electrical Heating Vest for Heart Failure and/or Hypertension Therapy." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35905.

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Purpose: To develop a lightweight, safe, and controllable electrical heating vest for heart failure and/or hypertension patients. Methods: a. A literature review related to the topic was conducted. b. A model of a simplified human body thermoregulation system was developed and simulated. It was used to predict the power requirement of the battery to increase core body temperature up to 1 Celsius degree (°C). c. A prototype with a smart controller was developed d. In-vitro tests of the prototype were conducted to assess performance and safety. e. The prototype was tested on 10 healthy hu

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20

Ghelfi, Ariane. "Efeitos toxicológicos do diclofenaco em peixes Rhamdia quelen." reponame:Repositório Institucional da UFPR, 2014. http://hdl.handle.net/1884/35405.

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Resumo: Entre os contaminantes emergentes que vem impactando os corpos d'água estão os fármacos. A presença de medicamentos tem sido detectada em diversos países não só na água como no solo e em sedimentos. Muitas vezes, os tratamentos de efluentes tradicionais não são eficazes na eliminação dessas substâncias, e desta forma elas ficam disponíveis no ambiente, oferecendo risco a organismos aquáticos e terrestres por serem potencialmente tóxicos. Entre esses fármacos está o diclofenaco, um anti-inflamatório amplamente prescrito mundialmente, que possui ação analgésica, anti-inflamatória e antip

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21

Souza, Claudio Alexandre de. "Territorialidade nas ações de responsabilidade social empresarial dos resorts do Brasil." reponame:Repositório Institucional da UFPR, 2014. http://hdl.handle.net/1884/35105.

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Resumo: O Brasil possui instalado os meios de hospedagem tipo resorts em todas as suas regiões político-administrativas. Estes tipos de meios de hospedagem possuem no caso do Brasil, características relativas ao seu tamanho e a sua operação que os diferenciam dos resorts em outros países. Aliadas as singularidades ambientais, socioculturais e econômicas das regiões do Brasil os resorts são um objeto de estudo quanto as suas respectivas relações sociais para com os demais atores/stakeholders aqui estudados. Estas são bases para que neste estudo tenha-se o objetivo de analisar a territorialidade

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22

Grazzini, Guilherme. "Identidade e diversidade dos pequenos mamíferos não voadores da Floresta Nacional de Piraí do Sul, Paraná, Brasil." reponame:Repositório Institucional da UFPR, 2014. http://hdl.handle.net/1884/35205.

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Resumo: Roedores e Marsupiais são mamíferos de grande importância no cenário Neotropical, possuindo elevado número de espécies e de endemismos e imprescindível papel ecológico. No estado do Paraná, até o momento são registradas 18 espécies de marsupiais e 40 de roedores. Na Floresta com Araucária por sua vez, os esforços são reduzidos, havendo ainda muito a ser feito. Este trabalho teve como objetivo conhecer as espécies desta fauna presentes na Floresta Nacional de Piraí do Sul, Paraná, contribuindo com aspectos taxonômicos, morfológicos (externos e de crânio), citogenéticos e de diversidade

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23

Mello, Claudete Regiani. "Contracepção com DIU TCu 380A : pesquisa da bacteria Neisseria Gonorrhoeae endocervical em mulheres assintomaticas: percepção da usuaria em relação a informação recebida." reponame:Repositório Institucional da UFPR, 1996. http://hdl.handle.net/1884/35005.

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Dissertação (professor titular) - Universidade Federal do Parana, Setor de Ciencias da Saude<br>Resumo: Os objetivos do presente estudo foram pesquisar a prevalência da bacteria Neisseria gonorrhoeae endocervical em mulheres assintomáticas, usuárias de dispositivo intra-uterino TCu 380A (grupo de estudo - grupo 1) comparando com as usuárias de método anticoncepcional natural ou laqueadura tubária (grupo de controle - grupo 2) e avaliar a percepção da usuária do DIU em relação à informação recebida no serviço. O trabalho foi realizado no Setor de Anticoncepção - Disciplina de Reprodução Humana

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24

Al-Saedi, Hayder M. "Mathematical modelling of solid tumour growth : a Dynamical Density Functional Theory-based model." Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/35605.

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We present a theoretical framework based on an extension of Dynamical Density Functional Theory (DDFT) to describe the structure and dynamics of cells in living tissues and tumours. DDFT is a microscopic statistical mechanical theory for the time evolution of the density distribution of interacting many-particle systems. The theory accounts for cell pair-interactions, different cell types, phenotypes and cell birth and death processes (including cell division), in order to provide a biophysically consistent description of processes bridging across the scales, including the description of the t

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25

Ostrowski, Anna. "Generation of a novel transposon promoter probe to study gene regulation in Porphyromonas gingivalis." Thesis, University of Leicester, 1996. http://hdl.handle.net/2381/35405.

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The transposon Tn4351, originally isolated from Bacteroides fragilis, has previously been used generate many isogenic mutants in the oral pathogen Porphyromonas gingivalis. Although such transposon mutants can determine the function of putative virulence genes they can not be used to study the regulation of these genes. To correct this deficiency Tn4351 was manipulated to include a reporter gene to generate a type I promoter probe with which to study the regulation of putative virulence genes in P. gingivalis under different environmental conditions. The manipulation of Tn4351 was achieved by

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26

Kioulachoglou, Anastasios C. "The ex-ante inflation corrected government balance : theory and application to ten OECD countries." Thesis, University of Leicester, 1996. http://hdl.handle.net/2381/35505.

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The thesis uses a conventional consumption function, annual data for a number of OECD countries and up-to-date precise econometric techniques to assess the extent to which consumers allow for the effects of inflation on conventional measures of income and wealth. More concretely, it uses a life cycle consumption function, which is estimated for both the long run and the short run for 10 OECD countries. For the estimation of the long run function, the Johansen approach is used. This estimation is followed by the estimation of an error collection model. The latter is accompanied by the performan

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27

Plante, Jean-Sébastien Ph D. Massachusetts Institute of Technology. "Dielectric elastomer actuators for binary robotics and mechatronics." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35305.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>"February 2006."<br>Includes bibliographical references (p. 145-153).<br>Future robotics and mechatronics applications will require systems that are simple, robust, lightweight and inexpensive. A suggested solution for future systems is binary actuation. Binary actuation is the mechanical analogy to digital electronics, where actuators "flip" between

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28

Bartolin, Alexandre (Alexandre Fernand Sauveur). "Offshoring is not the panacea : ensuring sustainable employment in the US manufacturing industry by leveraging demand proximity." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35705.

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Thesis (S.M. in Transportation and S.M. in Civil and Environmental Engineering)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2006.<br>Includes bibliographical references (p. 207-216).<br>This thesis investigates the theme of "manufacturing offshoring" that became a political issue during the 2004 U.S. presidential election. As during previous elections, employment became a key focus on the home front. Whereas the 1992 presidential election was marked by the debate around the loss of manufacturing jobs due to NAFTA, the 2004 election focused on both manu

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Araya, Goldberg Sergio. "Parametric constructs : computational designs for digital fabrication." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35505.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2006.<br>Includes bibliographical references (leaves 150-152).<br>This thesis explores strategies for building design toolchains in order to design, develop and fabricate architectural forms. The hipothesys of this research is that by embedding ruled based procedures addressing generative, variational, iterative, and fabricational logics, into early phases of form finding or form research process, it is possible to enhance and augment the repertoire of possible design methods yet facilitating the development and fabri

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30

Duggan, Mark G. (Mark Gregory). "Matched sampling of methods to reduce bias in an observational study." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35405.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.<br>Includes bibliographical references (leaves 87-91).<br>by Mark Gregory Duggan.<br>M.S.

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Venkatesh, Sridhar Chakravarthy. "The development of a digital controller for a three-phase induction motor." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35005.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.<br>Includes bibliographical references (leaves 76-77).<br>by Sridhar Chakravarthy Venkatesh.<br>M.S.

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32

Green, Paul Elijah. "View-dependent precomputed light transport using non-linear Gaussian function approximations." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/35605.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2006.<br>Includes bibliographical references (p. 43-46).<br>We propose a real-time method for rendering rigid objects with complex view-dependent effects under distant all-frequency lighting. Existing precomputed light transport approaches can render rich global illumination effects, but high-frequency view-dependent effects such as sharp highlights remain a challenge. We introduce a new representation of the light transport operator based on sums of Gaussians. The non-linear pa

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33

Nolan, Michael K. (Michael Kevin). "Optimal design of systems that evolve over time using neural networks." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/35105.

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Thesis (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, September 2005.<br>Includes bibliographical references (p. 124-126).<br>Computational design optimization is challenging when the number of variables becomes large. One method of addressing this problem is to use pattern recognition to decrease the solution space in which the optimizer searches. Human "common sense" is used by designers to narrow the scope of search to a confined area defined by patterns conforming to likely solution candidates. However, computer-based optimization generally does not ap

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34

Hambly, Nigel Charles. "Very low mass stars and brown dwarfs in galactic clusters." Thesis, University of Leicester, 1991. http://hdl.handle.net/2381/35905.

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This thesis describes searches for very low mass stars (0.3 > m/m > 0.08) and brown dwarfs (0.08 > m/m > 0.01) in the Pleiades and Carinae galactic open clusters using COSMOS automatic measures of Schmidt photographic plates. A broad introduction defines the problem and relates research in this area to other branches of astronomy; the second chapter presents a detailed review of the current observational and theoretical status of the subject; and the third chapter briefly describes the observational techniques employed. The results are presented in chapters four and five. The Pleiades results

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35

Jolliffe, Lee Elizabeth. "Municipal museums in Canada : contemporary directions." Thesis, University of Leicester, 1987. http://hdl.handle.net/2381/35305.

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This thesis studies municipal museums in Canada, defined as museums owned and operated under a bylaw or directive of a municipal corporation. The objectives are to examine ideas about these museums, to document their development, to identify their operation within the local government structure, and to analyze their contemporary state. The first part identifies a tradition in which municipal museums have evolved in response to gradual increases in community support. Their organization has been related to local government structures. The middle part documents a national review which identified

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36

Girod, Maurice. "Decision-making : a laboratory-based case study in conceptual design." Thesis, Loughborough University, 2001. https://dspace.lboro.ac.uk/2134/35705.

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The engineering design process may be seen as a series of interrelated operations that are driven by decisions: each operation is carried out as the consequence of an associated decision. Hence, an effective design process relies heavily upon effective decision-making. As a consequence, supporting decision-making may be a significant means for achieving design process improvements. This thesis concentrates on how to support selection-type decision-making in conceptual engineering design.

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37

Jamaludin, Roslan. "A non-conformance classification and rapid control method for improved product validation." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/35805.

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Product quality is a topic of significant industrial importance and has been the subject of ongoing research over many years. However, the study of non-conformance reduction in the pre-production stage of product development has received only limited attention. Although products undergo chronological and rigid assessments, there are still non-conformances which are detected late in development stages particularly in pre-production. Furthermore, these non-conformances are problematic when rectification cannot be found rapidly and these problems are then carried over into production. The researc

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Festugato, Lucas. "Comportamento de hidratação e resposta cisalhante cíclica de resíduo de mineração cimentado reforçado com fibras." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/35605.

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As propriedades do solo cotidianamente podem não ser adequadas às características e às necessidades de projeto. É apresentada, como alternativa, a técnica de reforço com inclusão de elementos fibrosos à matriz de solo cimentado e não cimentado. Ainda, embora comuns, o comportamento do solo frente a solicitações cíclicas não é completamente conhecido. Nesse sentido, o estudo do comportamento de hidratação e da resposta cisalhante cíclica de um resíduo de mineração cimentado reforçado com fibras é objetivado. Para tanto, medidas de retração química, medidas de rigidez ao longo da hidratação e en

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Jobim, Paulo Fernandes Costa. "Papel de mTOR na formação e reconsolidação da memória." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/35905.

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Novas informações assimiladas pelo sistema nervoso primeiramente ficam em um estado de labilidade para depois se estabilizarem através de um processo conhecido como consolidação, que envolve síntese de proteínas. Depois da reativação, uma memória previamente consolidada retorna ao seu estado de labilidade, e para que volte a ser estável, é necessário que haja novamente síntese de proteínas. Este segundo processo é chamado de reconsolidação. Recentemente os mecanismos moleculares e celulares envolvidos na regulação da síntese protéica relacionados à formação de memória de longa duração vêm send

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De, Serres-Bérard Thiéry. "Développement d'un modèle de peau reconstruite par génie tissulaire à partir de cellules diabétiques pour l'étude des plaies chroniques cutanées." Master's thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/35005.

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Tableau d'honneur de la FÉSP<br>Chez les patients diabétiques, plusieurs mécanismes intervenant dans la guérison de plaies sont affectés par l’hyperglycémie. Ainsi, ils sont plus à risque de développer des ulcères chroniques présentant un haut risque d’infection et pouvant même mener à une amputation des membres inférieurs. Les recherches menées sur les fibroblastes et les kératinocytes provenant de patients diabétiques humains sont principalement effectuées avec des cultures cellulaires monocouches peu représentatives de l’environnement in vivo, ce qui empêche la découverte de traitements eff

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Eddy, Grant Lee. "Study of Steady-State Wake Characteristics of Variable Angle Wedges." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/35205.

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Current methods of creating inlet total pressure distortion for testing in gas turbine engines are only able to simulate steady-state distortion patterns. With modern military aircraft it is becoming necessary to examine the effects of transient inlet distortion on engines. One alternative being evaluated is a splitting airfoil that is essentially a wedge that can be set at different opening angles. An array of such devices would be placed in front of the engine for testing that would be capable of creating steady-state distortion patterns as well as transient distortion patterns by changin

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Narayanan, Shivaram. "The Betweenness Centrality Of Biological Networks." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/35405.

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In the last few years, large-scale experiments have generated genome-wide protein interaction networks for many organisms including Saccharomyces cerevisiae (baker's yeast), Caenorhabditis elegans (worm) and Drosophila melanogaster (fruit fly). In this thesis, we examine the vertex and edge betweenness centrality measures of these graphs. These measures capture how "central" a vertex or an edge is in the graph by considering the fraction of shortest paths that pass through that vertex or edge. Our primary observation is that the distribution of the vertex betweenness centrality follows a power

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Agarwal, Deepak. "An 8 GHz Ultra Wideband Transceiver Testbed." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/35605.

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Software defined radios have the potential of changing the fundamental usage model of wireless communications devices, but the capabilities of these transceivers are often limited by the speed of the underlying processors and FPGAs. This thesis presents the digital design for an impulse-based ultra wideband communication system capable of supporting raw data rates of up to 100 MB/s. The transceiver is being developed using software/reconfigurable radio concepts and will be implemented using commercially available off-the-shelf components. The receiver uses eight 1 GHz ADCs to perform time inte

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Erickson, Victoria Gillispie. "Designing for Water Quality." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/35105.

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The following document serves as a design guidebook to assist landscape architects, designers, planners, engineers, and architects in the practice of developing land while preserving water quality. This guidebook outlines methods for maximizing permeable surfaces by providing examples of ways to minimize impervious surfaces.<br>Master of Landscape Architecture

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Brenden, Travis Owen. "Competition Between Age-0 Largemouth Bass And Juvenile Bluegills In A Virginia Pond." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/35705.

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<P>I assessed the potential for trophic competition between age-0 largemouth bass and juvenile bluegills by quantifying food resource use similarity in a Virginia recreational small impoundment and by experimentally stocking the species sympatrically and allopatrically in 1.0 m<SUP>3</SUP> cages and monitoring mortality, growth, and resource use. </P> <P>Niche breadth of bluegills in the small impoundment was greater than that of largemouth bass for eight out of nine sampling dates during the summer and fall of 1997. Virtually every type of item consumed by largemouth bass also was consumed

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Holland, Michelle Leigh. "Stiffener Design for Beam-to-Column Connections." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/35305.

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Stiffeners are used as a means of providing additional support to columns at beam connection locations. They are added when the strength of the column is exceeded but full moment strength of the beam section is desired. In determining the design of column stiffeners, there are no specifications for determining the distribution of load between the column web and stiffeners. The AISC Load and Resistance Factor Design Specifications provides guidelines for determining the stiffener area but no specifications are given. The actual loads taken by the stiffener and web are therefore not truly kn

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Popritkin, Gilda Padilla. "To Build Upon Ruin." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/35505.

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it is essential to regard the history of a site. to find the complexities that to others have mattered. architecture has a responsibility to interpret the past to future generations. it is then that it becomes immortal.<br>Master of Architecture

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Bendfeldt, Eric S. "Dynamics and Characterization of Soil Organic Matter on Mine Soils 16 Years after Amendment with Topsoil, Sawdust, and Sewage Sludge." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/35805.

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The present state and future prospect of the world's soil resources has prompted scientists and researchers to address the issue of soil quality and sustainable land management. Soil quality research has focused on intensively-managed agricultural and forest soils, but the concept and importance of soil quality is also pertinent to disturbed systems such as reclaimed mine soils. The restoration of soil function and mine soil quality is essential to long-term ecosystem stability. The objectives of this study were (i) to determine the comparative ability of topsoil, sawdust, and sewage sludge am

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Gao, Yu. "Calibration and Comparison of the VISSIM and INTEGRATION Microscopic Traffic Simulation Models." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/35005.

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Microscopic traffic simulation software have gained significant popularity and are widely used both in industry and research mainly because of the ability of these tools to reflect the dynamic nature of the transportation system in a stochastic fashion. To better utilize these software, it is necessary to understand the underlying logic and differences between them. A Car-following model is the core of every microscopic traffic simulation software. In the context of this research, the thesis develops procedures for calibrating the steady-state car-following models in a number of well known m

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Fronk, Ryan. "Dual-side etched microstructured semiconductor neutron detectors." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/35405.

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Doctor of Philosophy<br>Department of Mechanical and Nuclear Engineering<br>Douglas S. McGregor<br>Interest in high-efficiency replacements for thin-film-coated thermal neutron detectors led to the development of single-sided microstructured semiconductor neutron detectors (MSNDs). MSNDs are designed with micro-sized trench structures that are etched into a vertically-oriented pvn-junction diode, and backfilled with a neutron converting material, such as 6LiF. Neutrons absorbed by the converting material produce a pair of charged-particle reaction products that can be measured by the diode sub

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