Thesis (Ph. D.)--University of Oregon, 2002. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 605-636). Also available for download via the World Wide Web; free to University of Oregon users.

En dépit des énormes intérêts économiques qu'il suscite, le transport des métaux précieux au sein des fluides hydrothermaux est encore mal compris et dépend de façon cruciale des espèces présentes en solution. Dans cette thèse, nous utilisons la dynamique moléculaire ab initio pour étudier plus particulièrement la solvatation de l'or et de l'argent sous leur forme d'ion monovalent. Après avoir étudié la correction des forces de dispersion nécessaire dans le cas de la simulation de l'eau, principal solvant géologique, nous avons pu nous consacrer à la modélisation des fluides hydrothermaux en augmentant progressivement la complexité des systèmes. Il nous a été ainsi possible de caractériser des systèmes H2O/CO2 en conditions supercritiques, d'identifier de nouveaux complexes et d'interpréter les signaux EXAFS expérimentaux en étudiant les complexes hydrosulfurés de l'or et chlorés de l'argent, et pour finir d'observer l'influence du CO2 sur la solvatation de nos ions métalliques.

Thesis (M.A.I.S.)--Oregon State University, 2011. / Printout. Includes bibliographical references (leaves 137-149). Also available on the World Wide Web.

Thesis (M.S.)--Miami University, Dept. of Zoology, 2004. / Title from first page of PDF document. Includes bibliographical references (p. 36-47).

Bakgrund:Kvarliggande kateter [KAD] är en behandling för akut eller kronisk urinretention och används vid sjukdomar eller vissa operationer. Samtidigt ökar KAD risk för urinvägsinfektion, vilket minskar patientsäkerheten, förlänger återhämtningstid och ökar behandlingskostnad. Förebyggande åtgärder för att minska kateterassocierad urinvägsinfektion [UVI] blir därför allt viktigare. Flera länder i Europa, Nord- och Sydamerika har gjort flertalet studier och hittat effektiva evidensbaserade förebyggande åtgärder mot kateterassocierad UVI. Utifrån säker och evidensbaserad vård skulle evidensbaserade förebyggande åtgärder tas reda på och användas för att minska kateterassocierad UVI.  Syfte:Att beskriva förebyggande åtgärder inom omvårdnad mot kateterassocierad UVI. Metod:Litteraturöversiktutifrån Polit och Becks niostegsmodell användes i urval och datainsamling till att 12 artiklar gick igenom kvalitetsgranskningen och analyserades till resultatet med induktiv ansats.  Resultat:Förebyggande åtgärder sammanställdes i tre huvudkategorier. Första huvudkategorin följ riktlinjer med underkategorierna kateterisering endast utifrån läkarordination och lämpliga indikationer, aseptisk teknik med rätt utrustning, fixering av KAD och uppsamlingspåsen samt borttagning av KAD om inga behov föreligger. Andra huvudkategorin utför kontrollrutiner med underkategorierna utför kateteriserings checklista samt kontrollera, rapportera    och dokumentera kateter dagligen. Tredje huvudkategorin etablera ett systematiskt förbättringsarbete med underkategorierna utse en eller två ansvariga personer, erbjud föreläsning och träning om kateterisering samt arrangera workshop. Slutsatser:Kateterassocierad UVI kan förebyggas om sjuksköterska uppfyller sin kompetens med hjälp av workshop, utför kateterisering enligt riktlinjer, samt hanterar och kontrollerar urinkateter enligt kontrollrutiner såsom kateteriserings checklista. / Background:An indwelling catheter is used as a treatment for acute or chronic urinary retention and is commonly used for diseases or some surgeries. At the same time, indwelling catheters increases the risk of urinary tract infections, which reduces patient safety, prolongs patient’s recovery and increases treatment costs. Several countries in Europe, North- and South America have conducted several studies that found evidence-based, effective preventive measures against catheter associated urinary tract infections. Evidence-based preventative measures should be found out and be used to decrease catheter associated urinary tract infections. Aim: To describe preventive measures in nursing against catheter-associated urinary tract infections. Method:Literature overview with Polit and Beck's nine-way model is used in selection and data collection to ensure that the 12 articles selected to the quality review were analyzed for results with an inductive approach. Results:Prevention measures were compiled into three main categories. First main category follows guidelines with subcategories catheterization only based on medical ordinance and appropriate indications, aseptic technique with proper equipment, fixation of catheter and collection bag and removal of catheter if no needs exists. Second main category performs check routines with subcategories perform catheterization checklist as well as check, report and document catheters daily. Third main category establish a systematic improvement work with subcategories appoint one or two responsible persons, offer lecture and training on catheterization and arrange workshop. Conclusions:Catheter associated urinary tract infections can be prevented if the nurse fulfills her/his competency with help of workshop, performs catheterization according to guidelines, manages and controls the urinary catheter according to control routines such as catheterization checklist.

Ovid’s interest in women and their lives is apparent throughout his texts, but is especially so in the Metamorphoses. This study analyses the violation and violence of women in the Roman poet’s epic and sets out to uncover the governing social mores and values that perhaps shaped the representations of women in the text. It examines how Ovid’s narratives may betray his values and attitudes and those of his audience as well as looking at the various ways that the poet and his rape episodes have been read. After surveying the literature on rape in Ovid’s Metamorphoses, Ars Amatoria and the Fasti, a brief historical context for the Metamorphoses is provided; women’s lives in Rome, the rape laws that existed during this time, as well as Roman sexuality are then examined. After this, a close textual analysis of different rape episodes in the Metamorphoses is presented, including the episodes of nymphs as victims, the silencing of rape victims and sexually ‘aggressive’ women, in order to reveal and examine the patterns that emerge. While Ovid’s intentions and attitudes towards women, as they are found in the Metamorphoses, have been read by some as sympathetic, by others as misogynistic and still others as more neutral, it is concluded that, although there is space for various readings, as a poet, Ovid was ‘opportunistic’ in his choice of materia and, above all, he wished to stimulate and delight his audience. While his personal values may not necessarily be reflected in his works and his readers may never know the ‘true’ intentions behind the poem, the Metamorphoses does hold up a mirror to the negative treatment of women and exposes the gender inequalities that existed during Ovid’s time. As a poet, however, Ovid’s conceived role is to entertain his audience and despite his somewhat problematic treatment of women and rape victims, he does just that.

xii, 169 p. : ill. (some col.), maps. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number. / This thesis examines the possibility of a broader approach to the concept of "context" within the practice of historic preservation by producing a more inclusive model for preservationists to use in reading dynamic cultural and environmental systems. The industrial landscape of Astoria, Oregon with its buildings and ruins of once dominant fishing and canning industries serves as a case study to explore this idea. The author examines late 19th century and early 20th century industrial development in terms of cultural influx, industrial landscape development, and vernacular architecture. This thesis explores how the landscape has responded to influences such as economic shift, environmental change, migrant populations, and technology, and how cultural landscapes and the natural environment combine to form a distinct human geography as reflected in architectural and material remains. Many of the issues raised are specific to maritime, west coast, and extractive industrial settlements. / Committee in Charge: Dr. Susan Hardwick, Chair; Shannon Bell

Submitted by Izabel Franco (izabel-franco@ufscar.br) on 2016-09-19T19:22:31Z No. of bitstreams: 1 DissMA.pdf: 27125711 bytes, checksum: 4ad39606591072bc308496b81c242b4d (MD5) / Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-09-20T14:02:39Z (GMT) No. of bitstreams: 1 DissMA.pdf: 27125711 bytes, checksum: 4ad39606591072bc308496b81c242b4d (MD5) / Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-09-20T14:02:47Z (GMT) No. of bitstreams: 1 DissMA.pdf: 27125711 bytes, checksum: 4ad39606591072bc308496b81c242b4d (MD5) / Made available in DSpace on 2016-09-20T14:02:53Z (GMT). No. of bitstreams: 1 DissMA.pdf: 27125711 bytes, checksum: 4ad39606591072bc308496b81c242b4d (MD5) Previous issue date: 2014-01-24 / Não recebi financiamento / The objective of this essay is to propose a different approach to teaching the exponential function in high school. This new approach aims to provide a meaningful learning related to the subject exponential function, since students and teachers sometimes have difficulty understanding this concept, especially when it comes to real exponents. The work was based on preparation of some activities based on the Theory of Didactical Situations and applied following the methodology of the Didactic Engineering. There were basically five activity sheets, three of them were printed and two of them were spreadsheets. The problems and exercises aimed to examine and extend the validity of the fundamental property of exponential functions, that is, f(m + n) = f(m):f (n) for the dominance of natural numbers, integer, rational, real, and for the last one, we only worked with spreadsheets, specifically in the activity sheet number 5, to afford students an understanding about how the calculator obtains the approximate result of 2 √2 for example. The spreadsheet was also used in the activity sheet number 4, which deals with rational exponents. On this one we present an algorithm for the approximate calculation of nth roots of any real number. The activity sheets have been developed in order to provide students with maximum autonomy so that they could resolve them, being interspersed with adjunct sheets in order to introduce the new concept and theory discussed in the following activity sheet. The activities were implemented at a state school in It´apolis, and the results in a final analysis showed that this approach supplied a significant learning compared to traditional teaching. / O objetivo desta dissertação é propor uma abordagem diferente para o ensino da função exponencial no Ensino Médio. Essa nova abordagem visa proporcionar uma Aprendizagem significativa no que diz respeito ao assunto função exponencial, visto que alunos e professores, por vezes, apresentam dificuldades no entendimento desse conceito, principalmente quando se trata de expoentes reais. O trabalho foi baseado na elaboração de folhas de atividades pautadas na teoria das Situações Didáticas e aplicadas seguindo a metodologia da Engenharia Didática. Foram basicamente cinco folhas de atividades, sendo que três delas foram impressas e duas na forma de planilhas eletrônicas. Os problemas e exercícios contidos nas folhas de atividades tinham como objetivo analisar, bem como estender, a validade da propriedade fundamental das funções exponenciais, isto é, f(m + n) = f(m):f (n), para o domínio dos naturais, inteiros, racionais e reais, sendo que neste último, trabalhamos apenas com as planilhas, mais especificamente na folha de atividade 5, para proporcionar aos alunos uma noção de como a calculadora obtém o resultado aproximado de 2 √2, por exemplo. A planilha eletrônica também foi utilizada na folha de atividade 4, que trata de expoentes racionais. Nesta fornecemos um algoritmo para o cálculo aproximado de raízes n-ésimas de um número real qualquer. As folhas de atividades foram desenvolvidas tendo em vista proporcionar aos alunos o máximo de autonomia para que os mesmos pudessem resolve-las, sendo intercaladas por folhas de complemento que buscam dar introdução e fundamentação téorica ao novo conceito abordado na folha de atividade seguinte. As atividades foram aplicadas em uma escola estadual da cidade de Itápolis, e os resultados obtidos nas análises a posteriori mostraram que essa abordagem proporcionou um aprendizado significativo, quando comparado com o ensino tradicional.

Made available in DSpace on 2014-12-17T15:36:55Z (GMT). No. of bitstreams: 1 KarllaMSLC.pdf: 1651302 bytes, checksum: c8e051c662b1016f7e8abeaff047c73b (MD5) Previous issue date: 2008-12-12 / The physical and environmental factors presented by each habitat and the rhythm of behavior patterns strongly influence the ecology and behavior of the all living beings. At same time this factors may provide clues about the structure of a population and its ecological balance. The organizational structure, ecology and behavior of a species appraised in a region if we know be in balance when compared to the same type of appraisal made in a degraded area can provide a clear view of how the anthropogenic influences acted on these species and what steps can be taken in order to mitigate the effects and keep the population. The region where this study was conducted is, like most areas of port, subject to intense physical and environmental degradation. With the emerging interest of change in the quality of these environments also by the companies themselves that use the port services, the proposed study aimed to characterize the use of habitat, the distribution of behavioral activities carried out throughout the day and influence of geomorphology of the bed, depth and variation of tide on the expression of the behavior of Sotalia guianensis in the port of Maceio - Alagoas. From this information will be possible establish parameters for comparison with other populations of S. guianensis and establish conservation measures for the population occurring in the port of Maceio - AL, serving also as a basis for conservation actions future performed in other port regions / Os fatores f?sicos e ambientais apresentados por cada h?bitat e a ritimicidade dos padr?es comportamentais influenciam fortemente a ecologia e o comportamento dos seres vivos em geral. Ao mesmo tempo tais fatores podem fornecer pistas sobre a estrutura de uma popula??o e seu equil?brio ecol?gico. A estrutura organizacional, ecol?gica e comportamental de uma esp?cie avaliada em regi?es sabidamente em equil?brio quando comparada ? mesma avalia??o feita em ?reas degradadas pode fornecer um panorama claro de como as influ?ncias antr?picas agiram sobre estas esp?cies e que medidas podem ser tomadas no intuito de mitigar os efeitos nocivos e conservar a popula??o. A regi?o onde foi realizado esse estudo est?, assim como a maioria das ?reas de porto, sujeita ? intensa degrada??o f?sica e ambiental. Com o interesse emergente de mudan?a na qualidade desses ambientes por parte tamb?m das pr?prias empresas que utilizam os servi?os portu?rios, o estudo proposto visou caracterizar o uso do habitat, a distribui??o das atividades comportamentais realizadas ao longo do dia e a influ?ncia da geomorfologia do fundo, profundidade e das varia??es da mar? sobre a express?o dos comportamentos de Sotalia guianensis na regi?o do Porto de Macei? Alagoas. A partir dessas informa??es ser? poss?vel estabelecer par?metros para compara??o com outras popula??es de S. guianensis e delinear medidas de conserva??o para a popula??o ocorrente no Porto de Macei? AL, servindo ainda como base para a??es de conserva??o futuramente executadas em outras regi?es portu?rias

Obesidade sindrômica é definida como a obesidade ocorrendo em conjunto com várias características clínicas distintas, associadas a retardo mental. A forma sindrômica mais freqüente é a síndrome de Prader-Willi (PWS) caracterizada por hipotonia, dificuldade de sucção no período neonatal, atraso do desenvolvimento neuropsicomotor (DNPM), hiperfagia, obesidade, baixa estatura na adolescência, mãos e pés pequenos, hipogonadismo, dificuldade de aprendizado e distúrbios de comportamento. Estudamos 141 pacientes com obesidade e/ou hiperfagia, atraso no desenvolvimento neuropsicomotor e/ou dificuldades de aprendizado e distúrbios de comportamento, pela técnica de MLPA (multiplex ligation-dependent probe amplification) assim como 19 pacientes que apresentavam além de atraso do DNPM e/ou dificuldade de aprendizado, distúrbios de comportamento, obesidade e/ou hiperfagia, outro sinal ao exame físico que sugerisse alteração cromossômica, pela técnica de SNP-array (The GeneChip 174; Mapping 100K Set, Affymetrix), com o objetivo de identificar genes e/ou segmentos cromossômicos envolvidos com obesidade sindrômica. Essas técnicas detectam deleções e/ ou duplicações do genoma, seja analisando regiões específicas, como a de MLPA, seja cobrindo praticamente o genoma inteiro (SNP-array). Dez pacientes apresentaram alterações cromossômicas: duas deleções 1p36, uma deleção 2p25.3, uma deleção 3p26.3 e duplicação 11q22.3, uma deleção 6(q16.1-q21), duas deleções 12(q15q21.1) (irmãs gêmeas), uma deleção X(p22.13p22.12), uma duplicação 14q11.2 e uma duplicação X(q26.3). Dentre as alterações encontradas estão duas síndromes relacionadas com obesidade já descritas, a monossomia 1p36 e a monossomia 6q16, que são diagnósticos diferencias da PWS. Nos segmentos alterados foram localizados vários genes relacionados a obesidade: DRD2, MCHR2, PLCH2, PRKCZ, RAB21, RAB2B, RAB39, TPO e SIM1. Onze genitores foram analisados por MLPA, SNP-Array e/ou cariótipo e rearranjos cromossômicos não foram identificados. Na presença dos cromossomos parentais normais o risco de recorrência é considerado desprezível. O diagnóstico de pacientes com obesidade sindrômica é um desafio, pois há sobreposição de fenótipos impossibilitando até agora o diagnóstico diferencial, a não ser o da síndrome de Prader-Willi clinicamente reconhecível, pelo menos, em sua segunda fase. O emprego de técnicas que detectam variações no número de cópias do genoma humano amplia a possibilidade de reconhecimento de novas síndromes e a descrição do espectro da variabilidade fenotípica de síndromes conhecidas. Estas síndromes são uma potencial fonte de esclarecimento das causas das formas comuns de obesidade. / Syndromic obesity is defined as obesity occurring in association with several distinct clinical features and mental retardation (MR). Prader-Willi syndrome (PWS) is the most frequent syndromic form of obesity and is characterized by hypotonia, poor sucking in the neonatal period, developmental delay, hyperphagia, obesity, short stature in adolescence, small hands and feet, hypogonadism, learning disabilities and behavior disturbances. Herein, we studied 141 patients with obesity and/or hyperphagia, psychomotor developmental delay and/or learning disabilities and behavior disturbances with the technique of MLPA (multiplex ligation-dependent probe amplification), and 19 patients by SNP-array technique (\"The GeneChip 174; Mapping 100K Set, Affymetrix) to identify copy number variations. By using both techniques we detected deletions or duplications of the genome in ten patients: two deletions at 1p36, two deletions at 12q15q21.1 (twins), a deletion of chromosomes 2p25.3, 6q16.1-q21, and Xp22.13p22.12, a duplication of chromosomes 14q11.2 and Xq26.3, and an unbalanced translocation between chromosomes 3p26.3 and 11q22.3. Monosomy 1p36 and monosomy 6q16 are well-known syndromes and had already been related with obesity. Both syndromes are considered as differential diagnosis of PWS. Several genes related to obesity are mapped in the altered chromosome segments: DRD2, MCHR2, PLCH2, PRKCZ, RAB21, RAB2B, RAB39, TPO and SIM1. Eleven parents were studied by MLPA, SNP array, and / or karyotype analyses, and chromosomal rearrangements were not identified. Therefore, we consider these rearrangements to be causative of the patients´ phenotype. The diagnosis of patients with syndromic obesity is a challenge due to the overlapping of the phenotypes, except for Prader-Willi syndrome that is a clinically recognizable syndrome, mainly in its second phase. The use of techniques that detect copy number variations of the human genome will increase the recognition of new syndromes and also the description of the spectrum of phenotypic variability of known syndromes. These syndromes are a potential source for the understanding of the etiology of the common forms of obesity.