Com o intuito de estudar in vivo a reprodutibilidade e a comparação de dois índices visuais (Ekstrand et al. (1998) ? E e Nyvad; Machiulskiene e Baelum (1999) ? N) e as medidas de fluorescência a laser AGNOdent®,KaVo - DD) na detecção de sulcos e fossetas descoloridos, um único examinador treinado, após a obtenção do consentimento livre e esclarecido de 28 pacientes, atribuiu os escores E, N e médias de fluorescência a laser de 190 molares decíduos com e sem descoloração em sulcos e fossetas oclusais. A reprodutibilidade dos índices visuais foi calculada a partir do teste kappa Cohen e kappa ponderado (kp), enquanto para as médias do DD foi calculado o índice de correlação de Pearson (rp). Para a comparação entre os índices visuais ainda se calculou a correlação de Spearman (rcs) e para a correlação entre os índices visuais e as médias do DD, foram aplicados o teste t de Student para as dicotomizações de presença de lesão, descoloração e atividade. Finalmente, foi calculada a análise de variância (ANOVA) para comparação entre as médias do DD e os graus de severidade das lesões. A reprodutibilidade dos índices visuais foi substancial (kpE = 0,645) e (kpN = 0,634) e as médias do DD apresentaram correlação de Pearson significativa e altamente positiva (rp = 0,930). A comparação entre os índices visuais também foi positiva e significativa principalmente quanto à severidade (rcs = 0,623) e nas dicotomizações para a presença de lesão (rcs = 0,765) e descoloração (rcs = 0,757). O teste t de Student para as comparações entre os índices e as médias do DD também se apresentaram significativos (p < 0,001) para presença de lesão e descoloração ao contrário dos resultados para atividade. A análise de variância entre os graus de severidade dos índices visuais e as médias do DD mostrou diferenças estaticamente significativas apenas entre os graus de severidade 0 e 1 (E - 2a) para o índice E e 0, 1 (N - 4) e 2 (N - 5) para o índice N. Conclui-se, para sulcos e fossetas descoloridos de molares decíduos, que (1) ambos os métodos (visuais e de fluorescência a laser) mostraram-se confiáveis (2) o DD foi capaz de diferenciar tecidos hígidos de lesões com descoloração e de (3) inativas intactas ou com microcavidades em esmalte. / Aiming at developing an in vivo study of the reproducibility and correlation of two visual indexes (Ekstrand et al. (1998) ? E and Nyvad; Machiulskiene and Baelum (1999) ? N) and the measures of laser fluorescence (DIAGNOdent®,KaVo - DD) for the detection of decolorised pits and fissures, a single trained examiner, after the free and aware consent of 28 patients, opened the scores E, N and laser fluorescence averages of 190 primary molars with and without occlusal discoloration in pits and fissures. The reproducibility of the visual indexes was calculated with basis on the kappa Cohen and weighted kappa (wk) tests, while for the DD averages the Perason´s correlation (rp) was calculated. To provide a comparison among the visual indexes, the Sperman´s correlation (rcs) was calculated, and for the correlation among the visual indexes and the DD averages, the Student´s t test and the one-way analysis of variance (ANOVA) were applied to compare the DD averages and the degree of severity of the lesions. The reproducibility of the visual indexes was substantial (wkE= 0,645) and (wkN= 0,634); the DD averages presented a significant and highly positive Pearson´s correlation (rP= 0,930). The comparison among the visual indexes proved to be positive and significant, mainly in relation to the severity (rcs= 0,623) and the dichotomisations for the presence of lesion (rcs= 0,765) and discoloration (rcs= 0,757). The Student´s t test of for the comparisons among the indexes and the DD averages also proved to be significant (p < 0,001) for the presence of lesion and discoloration, contrary to the activity results. The one-way analysis of variance (ANOVA) among the degrees of severity and DD averages showed significant differences only at the degrees 0 and 1 (E ? 2a) of the E index and 0, 1 (N ? 4) and 2 (N ? 5) of the N index. The conclusions for pits and fissures with discoloration in primary molars are that (1) both methods (visual and laser fluorescence) were reliable (2) the DD was able to diferenciatte sound tissues from lesions with discoloration and (3) inactive intact or with microcavities lesions at the enamel level.

The main archaeological features studied in this thesis are semi-subterranean house remains in the woodlands of middle northern Sweden, east of the high mountains and some 100 km from the coast. The period during which they were occupied has been delimited to 4500-2500 BC. The house remains consist of circular or sometimes rectangular depressions in the ground, surrounded by mounds of refuse and large amounts of fire-cracked stone. Eighty house remains of this kind have been discovered so far and 20 features have been excavated. They are found at 29 different localities that cover an area of more than 60,000 km2. The question put forward is whether these house remains show patterning in site location, economy and material culture, suggesting that they belonged to one people sharing a similar language and values. The majority of the locations include more than one house and because of the dug-out-floors and the large amounts of fire-cracked stone they are interpreted as winter villages. The distributions of the villages show a settlement pattern in which the locales are separated by a mean distance of approximately 35 km. In one of the regions, Vilhelmina parish, summer camps have been located by smaller lakes where the waterways from 3 different winter villages connect. Other possible summer camp sites are suggested, based on their location in areas where waterways connect two or three winter villages. The winter sites were associated with local bands, according to the social structure of hunting societies in North America, suggested by June Helm. Several local bands form a regional band that camp together during certain periods of the year. All regional bands form the tribe or the language family. No traces of social differences between groups or families have been revealed in the material and it is therefore assumed that the remains of the houses represent a hunting/gathering band society. Among the artifacts in the houses is a predominance of small scrapers of quartz and quartzite. There is also a very high representation of elk (moose) in the bone material from the house remains. Prehistoric and later pit-falls as well as paintings and carvings of elk are distributed within the same area. This shows that elk were a very important prey and this has been emphasized when discussing the explanations of the uniformity in house type and artefacts. Finally the importance of the slate tools, in particular those of red slate, is briefly discussed. The manufacture of slate tools increase during the neolithic period. In the inland of middle Norrland artifacts of red slate dominate over the grey and black slate artifacts in most of the houses and on many other sites. The raw material is, in most cases, found close to the high mountains, but the red slate is otherwise rare compared to the black and grey, which suggests that it has been highly valued. The knowledge of, and access to, red slate is suggested as having symbolized the unity of this band society. / digitalisering@umu

Since the 1960s, the modern environmental movement, though generally liberal in nature, has historically excluded a variety of serious and influential groups. This thesis concentrates on the movement of working-class housewives who emerged into popular American consciousness in the seventies and eighties with their increasingly radical campaigns against toxic contamination in their respective communities. These women represent a group who exhibited the convergence of cultural influences where domesticity and environmentalism met in the middle of American society, and the increasing focus on public health in the environmental movement framed the fight undertaken by women who identified as “housewives.” These women, in their use of both traditional female stereotypes as well as radical influences from other social movements, synthesized their own unique type of activism, which has had a profound influence on the environmental movement and public health in the United States, especially in its relation to environmental justice.

Notre thèse traite de l’histoire des sanctuaires et de l’évolution des cultes et de la mythologie cycladiques dans la transition, qui conduit de la fin du monde mycénien à la Grèce classique. Notre première partie (pp. 13-445) est constituée d’une suite de monographies retraçant les changements, qui affectent les habitats et les places cultuelles des différentes îles de l’archipel entre le XIIe et le VIe siècle av. J.-C.. La deuxième partie (pp. 446-558) contient un essai de synthèse et une interprétation des données présentées auparavant. Plus exactement, une réflexion sur les mécanismes de recomposition de l’héritage religieux de l’âge du bronze, qui participent à la définition des panthéons insulaires archaïques. La troisième partie (pp. 559-628) est un essai d’anthropologie religieuse, dans lequel est examinée la notion de création dans la mythologie des Cyclades, à la recherche d’un imaginaire insulaire. Le premier chapitre commence par l’analyse et l’interprétation de la Cosmogonie de Phérécyde de Syros. Le second chapitre vise à mettre en évidence de quelle façon les thèmes symboliques spécifiques au système de Phérécyde se retrouvent également déclinés dans les autres mythes régionaux et trouvent leur origines dans les cultes agraires locaux les plus anciens. / The topic of our thesis is the history of the sanctuaries, and the evolution of the worships and mythology in the transition, which leads end of the Mycenaean world to classical Greece. Our first part (pp. 13-445) makes up of a continuation of monographs recalling the changes, which affect the settlements and the worship places of the various islands of the archipelago between XIIe to VIe Century B.C. The second part (pp. 446-558) contains a test of synthesis and an interpretation of the data presented before. More exactly, a reflection on the mechanisms of recombining of the religious heritage of the Bronze Age, which take part in the definition of archaic insulars pantheons. The third part (pp. 559-628) is an assai of religious anthropology, in which the concept of creation in the mythology of Cyclades is examined, in the search of an islander imaginary. The first chapter starts with the analysis and the interpretation of the Cosmogony of Pherekydes of Syros. The second chapter aims at highlighting how the topics symbolic systems specific to the system of Pherekydes are also found declined in the other regional myths and find their origin in the local agrarian worships oldest.

La presente tesis para optar el grado de Ingeniero Civil se titula “Evaluación estructural, superficial y funcional del pavimento de la pista principal aeropuerto de Pisco: Renán Elías Olivera”. El objetivo de la investigación ha sido explicar los elementos de la evaluación estructural, superficial y funcional del pavimento de la pista principal del Aeropuerto de Pisco “Renán Elías Olivera” para cumplir con la Norma establecida por las FAA. La metodología utilizada es de tipo descriptivo – aplicada y de diseño cualitativo – cuantitativo. La hipótesis general ha comprobado lo siguiente: “existe una relación significativa entre los elementos de la evaluación estructural, superficial y funcional del pavimento de la pista principal del Aeropuerto de Pisco “Renán Elías Olivera” y el cumplimiento con la Norma establecida por las FAA para llegar a ser admitido como aeropuerto alterno del Jorge Chávez. La validación de la Hipótesis ha quedado comprobada y demostrada a través del análisis de los diferentes estratos del suelo, espesores característicos del suelo de fundación por medio de calicatas y las características de la pista asfáltica del Aeropuerto Renán Elías Olivera y el cumplimiento de la Norma establecida por la Federal Aviation Administration (FAA), generando la conclusión general, como resultado de la comprobación de la hipótesis global mediante el siguiente enunciado: “…Se ha podido determinar que la evaluación estructural, superficial y funcional del pavimento de la pista principal aeropuerto de Pisco: Renán Elías Olivera cumple con los requerimientos de la FAA para ser un aeropuerto alterno al Jorge Chávez”. This thesis for the degree of Civil Engineer is entitled "Structural evaluation, functional surface and the floor of the main runway airport in Pisco: Renan Elias Olivera". The aim of the research was to explain the elements of structural, surface and functional assessment of the main runway pavement Airport Pisco "Renan Elias Olivera" to meet the standard set by the FAA. The methodology is descriptive - applied design and qualitative - quantitative. The general assumption has proven that: "there is a significant relationship between structural elements, surface and functional assessment of the main runway pavement Airport Pisco" Renan Elias Olivera "and compliance with the standard set by the FAA become accepted as an alternate airport Jorge Chavez. Validation of the hypothesis has been tested and demonstrated through the analysis of different soil layers, soil thickness characteristic foundation through pits and characteristics of the asphalt airport runway Renan Elias Olivera and compliance with the standard set by the Federal Aviation Administration (FAA), generating the overall conclusion as a result of the verification of the overall hypothesis by the following statement: "... It has been determined that the structural, surface and functional evaluation of pavement from the main runway airport Pisco: Renan Elias Olivera meets the requirements of the FAA to be an alternate airport Jorge Chavez".

This research investigates cases of learning pathways for improving rehabilitation practices for key occupations in the mining industry. The study is set up as a partnership research programme between Rhodes University Environmental Learning Research Centre in South Africa, and the South African Qualification Authority, focussing on workplace learning and sustainability practices. This research programme seeks to understand the implications of the move to a knowledge society, with its emphasis on knowledge building over time, particularly in and for the environmental sector. The research was conducted as a qualitative case study that made use of semi-structured interviews, document analysis, visual photographs and observations as instruments of data gathering. Participants were sampled from two case studies, one in Limpopo province and the other one in Mpumalanga Province, who are directly involved in rehabilitation practices and related education and training programmes. The study makes use of career stories from the key occupations to provide insight into workplace learning pathways to inform education and training in the mining industry. A series of analytical statements captures some of the main findings on early education histories, career choices, learning pathway decisions and experiences related to sustainable practices and some complexities related to learning pathways. Environment and sustainability education is a cross-cutting issue in the NQF; and it pertains to the mining sector, especially to rehabilitation practices, which form the focus of this study as little is known about learning pathways associated with these sustainability practices. Insights from the study should enable the sector to enhance rehabilitation training for key occupations and at the same time encourage lifelong learning contributing towards sustainable development.

Visualization is used for stainless steel container wall and lid cross section characterization. Two specific types of containers are examined: 3013 and SAVY. The container wall examined is from a sample of the inner container of a 3013 container. The inner lid cross section examined is from a SAVY container. Laser confocal microscope data and photographic data are used to determine features of the surfaces. The surface features are then characterized by various feature statistics, such as, maximum depth, area, eccentricity, and others. The purpose of this pilot study is to demonstrate the effectiveness of using the methodology to detect potential corrosion events on the inner container surfaces. The features are used to quantify these corrosion events. An automatic image analysis system uses this methodology to classify images for possible further human analysis by flagging possible corrosion events. A manual image analysis methodology is used to determine the amount of MnS on the SAVY container lid cross section. Visualization is an integral component of the analysis methodology.

No description available.

The following thesis summarizes two years investigation conducted in Sherabad District in South Uzbekistan. The research was focused on systematic field survey in immediate vicinity of tepas, artificial mounds created by centuries of a human inhabitation. Five different areas were examined in order to follow the settlement extant and chronology. The work was conducted by using satellite imageries in combination with topographical maps. The information collected on the fields were marked in PDA running GIS application and evaluated in computer. The results of the field prospection were verified by using complementary methods of the test pits and of the total pickups. Key words: Central Asia, South Uzbekistan, Sherabad District, topographical maps, satellite imagery, systematic field survey, test pits, total pickups, GIS application.

Ce manuscrit est consacré à l'étude des transformations polymorphiques induites au cours du procédé de compression directe, et à son incidence sur les propriétés mécaniques des comprimés. L'objectif principal de ce travail est d'apporter des éléments de compréhension sur la transition polymorphique de la caféine (principe actif modèle) Forme I en Forme II survenant lors du procédé de compression directe, et de déterminer si celle-ci a un impact sur la contrainte à la rupture du comprimé. L'utilisation du simulateur de compression Styl'One Classique (Médel'Pharm) et d'une machine de fatigue (Instron®) pour la fabrication des comprimés, a permis d'étudier deux paramètres de procédé (pression et vitesse de fabrication) et deux paramètres de formulation (dilution du principe actif et nature du diluant) représentatifs de conditions industrielles. Les transitions de phase de la caféine ont été évaluées par analyse calorimétrique différentielle (ACD). De plus, des études cinétiques ont été conduites durant plusieurs mois afin d'observer l'influence de ces différents paramètres sur la transition polymorphique de la caféine anhydre Forme I en Forme II dans les comprimés au cours de leur stockage. Enfin, l'analyse du mécanisme de transition de ce principe actif a été réalisée au moyen d'une loi exponentielle étirée, issue du modèle de Johnson-Mehl-AvramiLa contrainte à la rupture des comprimés (caractéristique globale) a été mesurée par un test de rupture diamétrale, la dureté de surface des comprimés (caractéristique locale) par nano-indentation. Un premier modèle de prédiction de la contrainte à la rupture selon la teneur en caféine a été développé. Les principales caractéristiques du cycle de compression calculées à partir des données enregistrée par le simulateur de compression ont permis d'analyser le comportement des formules lors de la compression puis d'établir un second modèle de prédiction de la contrainte à la rupture.Les résultats de transition polymorphique et de propriétés physiques de comprimés seront alors confrontés / Direct compression process is widely used in the pharmaceutical industry for tablet manufacturing. This work is dedicated to the study of the polymorphic transformation induced by a direct compression process, and its impact on tablet mechanical properties. The main objective is to improve the understanding of the phase transition of caffeine Form I into Form II occurring during the direct compression process, and whether it has an impact on the tablet tensile strength. In this way, several studies have been conducted on the impact of operating conditions on the polymorphic transformation of a model active pharmaceutical ingredient (API) and on few physical properties of the tablets.The use of a compression simulator Styl’One Classique (Médel’Pharm) and a fatigue equipment (Instron®) for the manufacture of tablets, allowed studying two process parameters (compression load and compression speed) and two formulation parameters (dilution of the API and nature of the diluent). Caffeine phase transitions have been evaluated by differential scanning calorimetry (DSC). Moreover, during several months after tableting, kinetic studies were conducted in order to observe the influence of these parameters on the polymorphic transition of the anhydrous caffeine Form I into Form II in tablets during storage. Finally, the analysis of the transition mechanism of this API was performed thanks to a stretched exponential law, derived from the Johnson-Melh-Avrami model.The tensile strength of tablets (global property) was measured by a diametral compression test and their surface hardness (local property) by nanoindentation. A first predictive model for tablet tensile strength according to the caffeine content was developed. The compression cycle characteristics calculated from the data recording with the compression simulator allowed analyzing the behavior of different blends during the compression process. A second model for predicting the tensile strength was then established.Finally, results obtained for the polymorphic transition and physical properties of tablets will then be confronting