Thèses sur le sujet « Clarkston »

The central part of Clarkston Mountain is located in northcentral Utah in the southern part of the Malad Range. It is northwest of Clarkston, Utah. The mapped area measures 2.5 mi. in the north-south direction and 6.5 mi. in the east-west direction. It is within the Basin and Range Province. The Ute Formation of Middle Cambrian age is the oldest exposed stratigraphic unit. Other Cambrian units, in ascending order, are: Blacksmith Formation, Bloomington Formation, Nounan Formation, and St. Charles Formation. These units consist predominantly of limestone, dolostone, and shale. Units of Ordovician age include the Garden City Formation and the Swan Peak Formation. They consist of limestone and orthoquartzite, respectively. The youngest Paleozoic unit is the Fish Haven-Laketown Formation of Ordovician-Silurian age. It is dolostone. Units of Quaternary age include colluvial deposits, Lake Bonneville Group, and alluvial deposits. West-dipping, low-angle normal faults generally trend north and northwest. They were originally thrust faults formed during regional compression. A bedding-plane thrust fault separates the Bloomington and Nounan Formations. Later reversed movement on the west-dipping, low-angle thrust faults changed the stratigraphic relationships across these faults to those characteristic of normal faults. High-angle normal faults trend northwest, north, and northeast. Major normal faults extend along the western and eastern sides of Clarkston Mountain and are responsible for the present topographic relief. The structural features of the mapped area are the result of two major tectonic events. The Sevier orogeny produced eastward directed thrust faults. It began in Late Jurassic and ended in early Eocene. Basin and Range normal faulting caused reversed movement on west-dipping thrust faults, formed by the Sevier orogeny, and also produced many high-angle normal faults. It began in early Eocene and has continued into historic time in the region.

In this thesis Clarkson's inequalities and their generalizations are the main tools. The technique that can be used to prove Clarkson type inequalities in more dimensions is shown. We also establish Clarkson type inequalities in general Banach spaces and point out the connections between Clarkson's inequalities and the concept of type and cotype. The classical results on the von Neumann-Jordan constant, closely related to Clarkson's inequalities, are shortly presented. The concepts of moduli of convexity and smoothness, which are connected with the geometry of Banach spaces, are discussed. Some equivalent ways of describing modulus of convexity and some properties of this function are formulated. The estimation of the modulus of convexity for L(p)-spaces is presented as well. Finally, several examples of moduli of convexity and smoothness for different spaces are described.

Godkänd; 1999; 20070320 (ysko)

An ethnographic case study was done in the rural community of Clarkson which lies at the foot of the Tsitsikamma Mountains in the Eastern Cape, South Africa. Rural communities gathered and developed local wisdom on the natural resources around them. The study shows that in the past, life in Clarkson was characterised by such shared wisdom, an abundance of natural resources, as well as strong community cohesion. With the advent of modern lifestyles community cohesion and practices were disrupted and today, people living in Clarkson are less dependent on each other and on local resources. This study suggests that some of the past wisdom, community knowledge, practices and skills that existed for ages in Clarkson, can still be useful today in the context of environmental sustainability. The incorporation of this knowledge into the new outcomes-based education curriculum in South Africa and the local school curriculum, is explored.

Na radioterapia, o planejamento é parte fundamental do tratamento de um paciente. Para que o planejamento seja bem sucedido, o físico deve utilizar parâmetros físicos baseados na interação da radiação com a matéria para determinar a dose no volume alvo. Esses parâmetros são obtidos a partir de campos com dimensões bem definidas (geralmente quadrados), porém, na radioterapia é comum aparecer campos irregulares. Para resolver este problema, utilizam-se métodos que convertem esses campos irregulares em equivalentes de campos quadrados. Quando se tem campos pequenos, a aproximação de Sterling (algoritmo que permite a obtenção do campo quadrado equivalente a partir da razão entre quatro vezes a área efetiva de irradiação pelo perímetro que a envolve) é bem sucedida, porém quando o campo é muito grande e irregular, esta relação mais tão eficiente. Para tal caso, tem-se um método conhecido por Método de Clarkson. O método de Clarkson é um algoritmo que utiliza valores obtidos a partir de funções que relacionam a interação da radiação com a matéria, tais como, Razão Espalhamento Ar (SAR) e Razão Tecido Ar (TAR), para determinar especialmente campos quadrados equivalentes de campos irregulares e de grandes dimensões ou para calcular a dose de radiação em um ponto do paciente. A utilização deste método é muito trabalhosa, pois exige muitas horas de trabalho manual de um profissional especializado. Este trabalho desenvolveu um programa que analisa uma magem digital de um campo irregular, como os campos encontrados frequentemente no tratamento de linfomas do tipo Hodgking (manto), e determina um campo regular equivalente a este. As incertezas entre o método de Clarkson manual e o programado foram de ( -0,52 ± 0,60 )% e validam o programa desenvolvido.
Radiotherapy has a fundamental part that is the patient treatment planning. For its success, the medical physicist has to use physical parameters based on the radiation interaction with the matter, in this case the patient; in order to determine the radiation absorbed dose in the selected target volume. The physical parameters normally are related to regular radiation field sizes, although irregular fields can be also used in some treatments. To overcome this problem there are methods that convert irregular fields in regular fields, such as a square one. For small fields the Sterling\'s Method (technique to calculate equivalent square fields making use of ratio four times the effective area of irradiation by is perimeter) can be used. However, this method is not adequate for large irregular field. In this case, the Clarkson\'s Method is used. The Clarkson\'s Method uses values functions, such as Scattering-Air Ratio (SAR) and Tissue-Air Ratio (TAR), related with radiation interaction of with matter, to determine equivalent square fields from those large irregular ones or to calculate the radiation absorbed dose in the point of interest in a patient The application this method takes time, once it needs a considerable time from the medical physicist attention and also from the equipment. In this work, a software was developed to analyse digital images of large irregular fields, such as fields found in treatment of Hodgkin\'s disease (mantle) correlating them to regular equivalent fields. The uncertainty between the manual Clarkson and the programmed was inferred as ( -0,52 ± 0,60 )%, what can validate the program developed.

Includes bibliographical references (leaves 312-342).
In this thesis we examine the case of the Clarkson Mission and Tsitsikamma Mfengu communities on the Southern Cape Coast of South Africa, and highlight some of the ambiguities prevalent in their contested claims of entitlement to the Clarkson mission land. Their respective notions of communal identity are investigated, and the ways in which these are historically linked to land entitlement are examined. The analyses of the constructed communal identities of the "coloured" Clarksoner and the "native" Mfengu are located within the critical analytical approach of discourse theory, an important component of which is a socio-historical analysis. Primary data were obtained through archival, documentary, comprehensive Deeds Registry research, as well as fieldwork and in-depth interviews. Central themes in this study are colonial land dispossessions, the use of forced indigenous labour, resistance, rebellion and collaboration. The study shows that aspects of "coloured", "native", "tribal", "ancestral", Mfengu, and Moravian, used in contemporary communal identity formations are not fixed givens, but rather historical discursive constructions that are in a process of constant change. In the case of the Clarksoners we show how the Moravian historical narrative together with the Moravian Ethic had been transplanted and imposed by the early Moravian missionaries at the Cape and how these have over time come to be taken-for-granted and appropriated by members of Moravian Church, and Clarksoners in particular. We trace the origin of the Moravian narrative and show the similarities, differences, and continuity at both Genadendal in the Southern Cape and Clarkson. In the case of the Tsitsikamma Mfengu we show how the emerging colonial "Fingo" narrative and constructed colonial "Fingo" identity are firmly connected to land dispossession and forced labour in the aftermath of the 1835 Eastern Cape frontier war. We show how elements of both the "Fingo" narrative and constructed identity were appropriated and re-ordered in contemporary processes of Tsitsikamma Mfengu community identification. The study endeavours to make visible the dynamic changing history and relations of power and domination surrounding processes of communal identification that are connected to historical rights in land.

The main results in this thesis are the minimax theorems for operators in Schatten ideals of compact operators acting on separable Hilbert spaces, generalized Clarkson-McCarthy inequalities for vector lq-spaces lq (Sp) of operators from Schatten ideals Sp, inequalities for partitioned operators and for Cartesian decomposition of operators. All Clarkson-McCarthy type inequalities are in fact some estimates on the norms of operators acting on the spaces lq (Sp) or from one such space into another.

La dosimétrie in vivo en transmission réalisée avec les imageurs portals apparait être une alternative intéressante pour la réalisation de la dosimétrie in vivo en Radiothérapie externe. Une nouvelle méthode basée sur des fonctions de Rapport Tissue Maximum finit (RTMf) et sur une séparation Primaire / Diffusée est proposée. La dose dans le patient peut alors être estimée à partir du signal transmis mesuré pendant le traitement. 46 configurations test réalisées à l'aide de fantômes d'eau solide ont été proposées pour réaliser l'évaluation globale de la méthode. En outre, une étude clinique de validation a été conduite pour 494 patients. Les images portals ont été acquises à l'aide d'imageur portals au silicium amorphe montés sur des accélérateur Clinacs Varian(tm). La dose dans le patient est calculée par rétroprojection de la dose portal à l'aide du logiciel EPIgray(tm) (logiciel développé en collaboration avec la société DOSIsoft(tm)) et est comparée à celle planifiée à l'aide logiciel Eclipse Varian(tm) (algorithme Pencil Beam). Les écarts entre les doses planifiées et les dose mesurées sont reportés pour chaque point d'intérêt. Les résultats sont dans les niveaux de tolérances habituels de la dosimétrie in vivo (moyenne=0. 7% 1s= 2. 7% pour les mesures sur fantômes; moyenne =-0. 6% 1s= 2. 8% pour les mesures in vivo sur patients). Pour conclure, la dosimétrie in vivo en transmission est facile à utiliser en conditions de routine clinique (pas de temps additionnels lors du traitement). En utilisant la méthode proposée, la dose peut être calculée en tous points dans le patient. La précision des résultats est plus qu'acceptable pour le cadre de la dosimétrie in vivo
Transit dosimetry performed with Electronic Portal Imaging Devices (EPIDs) appears as an interesting alternative for in vivo dose verification for patients receiving external Radiotherapy. A new method based on a transit Tissue Maximum Ratio (TMRt) and Primary/Scatter separation is proposed. The dose inside the patient could be estimated from the transmitted signal measured during irradiation. 46 test cases were defined, using solid water phantoms, for the overall method assessment. Moreover, a clinical study was driven for 494 patients. Portal Images are acquired using a-Si EPID mounted on 4 Varian Clinacs(tm). The dose in the patient is estimated from the back projection of the portal dose with EPIgray(tm) (software developed in a partnership with DOSIsoft(tm)) and compared with calculated data (Varian Eclipse(tm) software using pencil beam algorithm). Deviations between stated and measured doses are reported for each point of interest. The results are within the accepted tolerance of classical in vivo dosimetry (mean=0. 7% 1SD= 2. 7% for in-phantom dose verifications; mean =-0. 6% 1SD= 2. 8% for in vivo dose verifications). To conclude, transit dosimetry is easy to use systematically in clinical routine (no additional time for data acquisition). Using this method, the in vivo dose can be computed at any point. The accuracy of this method was more than acceptable for in vivo purpose

In modern historiography, Henri Christophe, king of northern Haiti from 1816-1820, is generally given a negative persona due to his controlling nature and his absolutist regime, but in his correspondence, he engages in diplomatic collaborations with two British abolitionists, William Wilberforce and Thomas Clarkson, in order to improve his new policies and obtain international recognition. This paper argues that the Haitian king and the abolitionists engaged in a mutual collaboration in which each party benefitted from the correspondence. Christophe used the advice of the British abolitionists in order to increase the power of Haiti into a powerful black state, and Wilberforce and Clarkson helped the king position Haiti as a self-sufficient nation to fuel their abolitionist argument of the potential of post-emancipation societies.

Bibliography: leaves 123-152.
xiii, 152 leaves : ill. (some col.) ; 30 cm.
Details the characterisation of a histone H2A variant, H2A.F/Z and identifies that His2AvD provides its unique function through a region at the C-terminus of the protein. Results support the temporal and spatial association of H2A.F/Z with transcriptional activity.
Thesis (Ph.D.)--Adelaide University, Dept. of Molecular Biosciences, 2001

Bibliography: leaves 123-152.
xiii, 152 leaves : ill. (some col.) ; 30 cm.
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
Details the characterisation of a histone H2A variant, H2A.F/Z and identifies that His2AvD provides its unique function through a region at the C-terminus of the protein. Results support the temporal and spatial association of H2A.F/Z with transcriptional activity.
Thesis (Ph.D.)--Adelaide University, Dept. of Molecular Biosciences, 2001

This thesis focuses on a small, rural hamlet that was established in 1866 'at the foot' of Hervey Range in Far North Queensland. The hamlet was centred on the Range Hotel, but was also known to have had a small blacksmith shop and a cemetery. The hotel was one of five built alongside Hervey Range Road, which linked the newly gazetted port of Townsville to the inland supply town of Dalrymple and the gold, silver and tin mines of the hinterland. The research undertaken to investigate this settlement was constructed around four main questions: can archaeological evidence contribute to our understanding of the cultural landscape of the hamlet; the social role of the Range Hotel within the community; how women experienced and actively contributed to early settler life; and whether social respectability was important to the residents of a hamlet that was centred on the provision of alcohol. Archival and genealogy research revealed three new families who had resided in the hamlet, identified some of the social interactions and events, or instances of community (Yaeger & Canuto, 2000), that occurred during each of the hamlet's 18 years of occupation and provided evidence for an additional five, previously unknown, internments in the small cemetery. Archaeological surveys and excavations located the remains of the blacksmith shop that was built by John McNeill, a related rubbish dump, a stone floor that is likely part of the Range Hotel's stables and the possible site of the McNeill family home. These discoveries were used to examine the cultural landscape of the hamlet and appear to show that the settlement was probably divided into three separate, but related areas: a camping ground for the carriers and road workers, a business/residential area that included the hotel, stables, blacksmith shop and houses, and small cemetery. These areas were linked to each other and the wider landscape by Hervey Range Road. The recovered artefacts were used to assess the resident's social aspirations, using Quirk's (2007) six archaeological indictors for middle-class 'gentility' and working-class 'respectability'. Alcohol was often viewed as the 'working man's scourge' and one premise of respectability was the avoidance of this vice. The prominence of alcohol related bottles found across the excavated sites should perhaps have implied that the residents did not desire respectability and yet the recovered evidence did not support this. People in the hamlet appeared to have had comfortable, if simple homes, desired non-essential fashion accessories and used varied decorative ceramics to entertain both family and friends. These findings, therefore, suggest that respectability was achieved, even though alcohol was probably drunk by both the male and female residents. This layered theoretical approach has produced a fine-grained narrative that highlights the experiences and active roles that individual males and females played within their families and in the wider community. The results add to the understanding of how early Far North Queensland was successfully settled, with the residents' daily lives likely mirroring those of many of the other early settlers. This work also demonstrates how the community was not a 'bounded' entity, but was in fact linked across the wider landscape through the fluid movement of people and the formation of fictive-kin networks (Prangnell and Mate 2011). The discussion on gentility challenges the idea that alcohol was the antithesis of respectability, instead concluding that the type of community, the varieties of alcohol bottles found and even the identification of triggers that may have led someone to start drinking all need to be taken into account when drawing conclusions from the archaeological finds at a particular site. This thesis provides an important link to research that has already been undertaken in Townsville and on the pastoral stations and gold mines of the hinterland and also suggests further avenues of research. It also demonstrates how a layered theoretical approach can successfully investigate small communities and be used to highlight how ordinary people often led extraordinary lives. Discovering and telling their stories can help to enhance the past and reconnect it to the present.

Title: Gradient mapping of functions of several variables Author: Alena Skálová Department: Department of Mathematical Analysis Supervisor: doc. RNDr. Miroslav Zelený, Ph.D., Department of Mathematical Analysis Abstract: In the thesis we prove that the following statement holds true. For each d ≥ 2, for each open bounded set U ⊂ Rd and for each set F ⊂ Rd of the Borel class Fσ there exists an everywhere differentiable function u: Rd → R such that ∇u(x) ∈ U for all x ∈ Rd , ∇u(x) ∈ U for all x ∈ F, ∇u(x) ∈ ∂U for λd-almost all x ∈ Rd \ F.