O objetivo deste trabalho foi avaliar a taxa de oxigenação (%SpO2) do tecido pulpar em pacientes com tumores malignos intraoral e de orofaringe, tratados através de radioterapia (RT). As mensurações da %SpO2 foram realizadas com o oxímetro de pulso (OP), o qual gera valores relativos à quantidade de oxigênio viável circulante no tecido pulpar, o que o caracteriza como um método fisiométrico de avaliação do status da polpa dental. Foram selecionados 20 pacientes, sendo avaliados dois dentes de cada um (n=40), independente do quadrante e da área de irradiação, em quatro tempos distintos: I- antes da RT; II- no início da RT com dose de radiação entre (30Gy 35Gy); III- ao final da RT (60Gy 70Gy) e IV- depois de 4 5 meses do início do tratamento oncológico. As médias obtidas nos quatro tempos avaliados foram de 93%, 83%, 77% e 85% de SpO2, respectivamente. Através do teste t de Student (p0.01) foram encontradas diferenças estatisticamente significantes entre o Tempo I e todos os outros três tempos, o Tempo III também mostrou diferença quando comparado ao Tempo II e, não houve diferença estatística entre os Tempos II e IV. É possível concluir que as taxas de %SpO2 antes da RT são maiores do que aquelas obtidas trans e pós RT e, como os valores no Tempo IV ficam próximos aos obtidos no Tempo II, pode haver uma recondutibilidade sanguínea normal posterior a radiação ionizante. / The aim of this study was to evaluate pulp oxygenation level (%SpO2) in patients with malignant intraoral and oropharyngeal tumors treated by radiotherapy (RT). Pulp oxygenation level was measured by pulse oximetry, which shows the amount of oxygen circulating in viable pulp tissue and is a physiometric method for assessment of dental pulp status. Twenty patients were selected and two teeth of each of them (n = 40) were analyzed, regardless of the quadrant and the area irradiated, at four different times: I- before RT; IIat the beginning of RT with radiation doses between 30Gy 35Gy; III- at the end of RT (60Gy 70Gy) and IV- after 4-5 months of the beginning of the cancer treatment. Mean %SpO2 in the different times was 93%, 83%, 77% and 85%, respectively. Students t test (p0.01) showed statistically significant differences between Time I and the other three times. Time III was also different when compared to Time II, and there was no statistical difference between Times II and IV. It was concluded that %SpO2 before RT was greater than that observed during and after therapy and, as values obtained in Time IV were close to those of Time II, pulp tissue may show normal blood flow after radiation therapy.

A presente dissertação consta de uma exploração teórica e empírica sobre o conceito de qualidade espacial aplicado à cidade de Porto Alegre através do estudo da evolução da sua legislação urbanística. O tema tem justificativa no contexto de crise no qual se encontra a cidade atual, onde os espaços públicos são ocupados em sua maior parte por automóveis em detrimento das atividades de interação social, que acabam se voltando para os espaços privados. Tendo em conta esse cenário de fragmentação, tanto do ponto de vista da composição do espaço quanto do ponto de vista social, este estudo proporciona uma reflexão sobre a qualidade espacial da cidade, tendo como hipótese de trabalho a suposta interferência que a legislação urbana teria em sua evolução. Buscando argumentar em torno dessa questão, essa dissertação se propõe a investigar os conceitos e fatos que levaram à elaboração do conjunto de leis urbanísticas da cidade de Porto Alegre, revisando o panorama sociopolítico e espacial que lhes deu origem. A aplicação das normativas sugeridas como responsáveis por transformações na arquitetura de Porto Alegre serão, ao final, exercitadas na comparação de duas áreas da cidade decorrentes de contextos normativos distintos. / This masters dissertation consists of a theoretical and empirical exploration of the concept of spatial quality applied to the city of Porto Alegre by studying the evolution of its urban legislation. The theme is justified in the context of crisis in which is the current city where public spaces are occupied mostly by car to the detriment of social interaction activities, which end up turning to private spaces. In view of that fragmentation scenario, both from the point of view of the composition of space and the social point of view, this study provides a reflection on the spatial quality of the city, and as a working hypothesis the alleged interference that urban legislation would have on its evolution. Seeking argue around this issue, this dissertation aims to investigate the concepts and facts that led to the drafting of the set of urban laws in the city of Porto Alegre, reviewing the sociopolitical and spatial landscape that gave rise to them. The application of the regulations suggested as responsible for changes in Porto Alegre architecture will be at the end, exercised in comparing the two areas of the city resulting to different regulatory contexts.

Purpose: Temporal perspective, including views about future goals, may influence motivational processes related to health. An adaptive sense of future orientation is linked to better health, but little research has examined potential underlying factors, such as vitality. Method: In a sample of 101 primary care patients, we examined whether belief in the changeability of the future was related to mental and physical energization and, in turn, to health-related quality of life. Participants were working, uninsured primary care patients, who completed self-report measures of future orientation, vitality, and health-related quality of life. Results: Mediation models, covarying age, sex, and race/ethnicity indicated that vitality significantly mediated the association between future orientation and the outcomes of general health, mental health, social functioning, bodily pain, and role limitations due to emotional and physical reasons. Vitality exerted an indirect-only effect on the relation between future orientation and physical functioning. Conclusions: Our findings suggest that adaptive beliefs about the future may promote, or allow access to, physical and mental energy and, in turn, may result in better mental and physical health functioning. Individual-level and public health interventions designed to promote future orientation and vitality may beneficially influence quality of life and well-being.

Thesis (M. Environmental Science (Ecological Remediation and Sustainable Utilisation))--North-West University, Potchefstroom Campus, 2007.

Ziel dieser Studie war es, den Einflüß von Totgeburten auf die Wirtschaftlichkeit der Milchbetriebe zu analysieren. Die Analyse basietr auf Daten „ Kaimo verslo plėtros ir informacijos centras“. Insgesamt lagen 26800 Abkalbendaten von 47 Bullen. Von den 10243 Milchkühen, deren Abkalbungen Ergebnisse geprüpft wurden, waren 8820 Schwarzbunte Milchkühe und 1243 Tiere gehören zu den Braunvieh. Einen Einfluss auf das Verlustgeschehen haben die Tatsache, ob es sich bei der Mutter um eine Erst-(5,9% mehr Verluste) oder Mehrfachgebärende handelt. Erstkalbinnen haben erfahrungsgemaß mehr Kalbeschwierigkeiten als Kühe. Zu fett gefütterte, überstürzt gewachsene Färsen haben eine Tendenz zu Totgeburten. Totgeburten sind wirtschaftlich von Bedeutung aufgrund der Kälberverluste und der Tierarztkosten sowie aufgrund der beeinträchtigung von Fruchtbarkeit, Leistung und Gesundheit der Muttertiere und den daraus entstehenden Folgenkosten.

In this thesis, I take a mixed methods approach to exploring motivations and explanations for self-control and self-control failure. In Study 1, I used quantitative, experimental methods to test predictions derived from the strength model of self-control and self-determination theory related to voluntary risk, vitality, and self-control. In Study 2, I used thematic analysis of qualitative interviews to describe how people experience self-control and self-control failure. The strength model describes self-control as a limited resource that is depleted by acts requiring executive control. When people’s self-control is depleted, they are motivated to conserve and replenish self-control resources. One way of regaining self-control may be engaging in risky activities that provide a replenishing sense of vitality. Feelings of vitality are associated with perceptions of autonomy, and may serve as an experiential barometer of self-control strength. In Study 1, I manipulated self-control depletion and risk autonomy to test whether people engage in risky choices to provide a replenishing sense of vitality. My results suggest that vitality is not a reliable barometer of self-control strength. Perceptions of autonomy appear to be a predictor of short-term self-control strength, such that forced risk is a depleting experience. Further, perceptions of autonomy were an important facet of participants’ attributions of self-control success. However, thematic analysis further suggests that experiences of self-control cannot be removed from a context of motivation and emotion. More than just short-term fluctuations in ability to resist temptation, people’s personal theories of self-control provide a long-term narrative for explaining success and failures of goal-directed striving. More than just an intra-individual construct, the social context of self-control appears to have important influences on people’s attributions for self-control and self-control failure. By combining quantitative and qualitative methods, I add to the self-control literature by providing an account of the mechanisms and experiences of self-control and self-control failure.

Urban open spaces are of strategic importance to the quality of life of our increasingly urbanized society. Trees and related vegetation are planted and managed within the communities and cities to create or add value to the busy lives of the city dwellers. Trees in towns and cities form an important part of complex urban ecosystems and provide significant ecosystem services and benefits for urban dwellers, for example: reducing particulate pollution, carbon sequestration, decreasing air temperature, decreasing water runoff, aesthetic value and an increase in human health. Trees are solarpowered technology that can help restore balance to dysfunctional urban ecosystems. Trees form strands in the urban fabric that connect people to nature and to each other. The urban environment puts tremendous strain on trees by trenching, limited space for root growth and emission of pollutants into the atmosphere, water and soil. The problem is that the real impact of the urban environment on the trees within our community is unknown. The aim of this investigation was to assess the overall anthropogenic and environmental impacts on urban trees by measuring the tree vitality of Acacia karroo using chlorophyll fluorescence kinetics (JIP-test) and the leaf water potential using a pressure chamber. Tree vitality was quantified as the chlorophyll fluorescence-based performance index (PIABS)T. ree vitality measurements were also correlated with soil physical and chemical data. In the comparative study, an urbanization gradient approach was followed in which results of trees in rural areas were regarded as controls. The gradient approach is used worldwide and provides a background for questions of ecological structure and function. The urbanization gradient was quantified using the V-I-S model, based on % cover of vegetation, impervious surface and soil. Additionally, a model to determine the monetary value of trees in urban environments (SATAM) was tested. All this information could eventually contribute to develop an urban tree management program for Potchefstroom. It was evident from the current study that urbanization has a negative impact on tree vitality. The leaf water potential of a tree was, however, not necessarily negatively impacted upon. Although trees in urban environments did not always have a high vitality (PIABS)t, hey still played a major role in the urban environment. According to the tree appraisal method (SATAM), some of these trees have a value of R60 000. / Thesis (M. Environmental Science (Ecological Remediation and Sustainable Utilisation))--North-West University, Potchefstroom Campus, 2007.

The thesis provides a detailed grammatical and lexical description of Vend Romani, an under- described dialect of Romani spoken in the Transdanubian region of Hungary, and describes its current sociolinguistic situation. The linguistic data are based on recordings of spontaneous narratives, semi-structured interviews, and linguistic elicitation by means of standardized dialectological questionnaires acquired during linguistic field research. The thesis is structured into six main chapters: The first chapter deals with the sources of data and methods. The second chapter examines the factors that influence the sociolinguistic vitality of the dialect. The following three chapters are devoted to the grammatical description. The sixth chapter analyses the layers of borrowings in Vend Romani. The thesis also includes the basic vocabulary of Vend Romani translated to English.

A presente dissertação consta de uma exploração teórica e empírica sobre o conceito de qualidade espacial aplicado à cidade de Porto Alegre através do estudo da evolução da sua legislação urbanística. O tema tem justificativa no contexto de crise no qual se encontra a cidade atual, onde os espaços públicos são ocupados em sua maior parte por automóveis em detrimento das atividades de interação social, que acabam se voltando para os espaços privados. Tendo em conta esse cenário de fragmentação, tanto do ponto de vista da composição do espaço quanto do ponto de vista social, este estudo proporciona uma reflexão sobre a qualidade espacial da cidade, tendo como hipótese de trabalho a suposta interferência que a legislação urbana teria em sua evolução. Buscando argumentar em torno dessa questão, essa dissertação se propõe a investigar os conceitos e fatos que levaram à elaboração do conjunto de leis urbanísticas da cidade de Porto Alegre, revisando o panorama sociopolítico e espacial que lhes deu origem. A aplicação das normativas sugeridas como responsáveis por transformações na arquitetura de Porto Alegre serão, ao final, exercitadas na comparação de duas áreas da cidade decorrentes de contextos normativos distintos. / This masters dissertation consists of a theoretical and empirical exploration of the concept of spatial quality applied to the city of Porto Alegre by studying the evolution of its urban legislation. The theme is justified in the context of crisis in which is the current city where public spaces are occupied mostly by car to the detriment of social interaction activities, which end up turning to private spaces. In view of that fragmentation scenario, both from the point of view of the composition of space and the social point of view, this study provides a reflection on the spatial quality of the city, and as a working hypothesis the alleged interference that urban legislation would have on its evolution. Seeking argue around this issue, this dissertation aims to investigate the concepts and facts that led to the drafting of the set of urban laws in the city of Porto Alegre, reviewing the sociopolitical and spatial landscape that gave rise to them. The application of the regulations suggested as responsible for changes in Porto Alegre architecture will be at the end, exercised in comparing the two areas of the city resulting to different regulatory contexts.

A presente dissertação consta de uma exploração teórica e empírica sobre o conceito de qualidade espacial aplicado à cidade de Porto Alegre através do estudo da evolução da sua legislação urbanística. O tema tem justificativa no contexto de crise no qual se encontra a cidade atual, onde os espaços públicos são ocupados em sua maior parte por automóveis em detrimento das atividades de interação social, que acabam se voltando para os espaços privados. Tendo em conta esse cenário de fragmentação, tanto do ponto de vista da composição do espaço quanto do ponto de vista social, este estudo proporciona uma reflexão sobre a qualidade espacial da cidade, tendo como hipótese de trabalho a suposta interferência que a legislação urbana teria em sua evolução. Buscando argumentar em torno dessa questão, essa dissertação se propõe a investigar os conceitos e fatos que levaram à elaboração do conjunto de leis urbanísticas da cidade de Porto Alegre, revisando o panorama sociopolítico e espacial que lhes deu origem. A aplicação das normativas sugeridas como responsáveis por transformações na arquitetura de Porto Alegre serão, ao final, exercitadas na comparação de duas áreas da cidade decorrentes de contextos normativos distintos. / This masters dissertation consists of a theoretical and empirical exploration of the concept of spatial quality applied to the city of Porto Alegre by studying the evolution of its urban legislation. The theme is justified in the context of crisis in which is the current city where public spaces are occupied mostly by car to the detriment of social interaction activities, which end up turning to private spaces. In view of that fragmentation scenario, both from the point of view of the composition of space and the social point of view, this study provides a reflection on the spatial quality of the city, and as a working hypothesis the alleged interference that urban legislation would have on its evolution. Seeking argue around this issue, this dissertation aims to investigate the concepts and facts that led to the drafting of the set of urban laws in the city of Porto Alegre, reviewing the sociopolitical and spatial landscape that gave rise to them. The application of the regulations suggested as responsible for changes in Porto Alegre architecture will be at the end, exercised in comparing the two areas of the city resulting to different regulatory contexts.