Πειραματική διεκπεραίωση 24 υποστυλωμάτων ορθογωνικής διατομής με μεγάλο λόγο πλευρών 3:1 και 4:1, κατασκευασμένα υπό κλίμακα, ενισχυμένα με ινοπλισμένα πολυμερή άνθρακα και εφαρμογή σχετικών προσομοιωμάτων υπάρχουσας βιβλιογραφίας. / Experimental procedure of 24 large-scale column specimens 3:1 and 4:1 reinforced with carbon fiber polymers CFRP and comparison of the test results with those calculated from the existing models of large-scale columns.

Background: Vitamin D may have beneficial effects on cardiometabolic disease, but the evidence is equivocal. This may be due to unaccounted confounders, such as lifestyle factors and genetic variation. We examined the association between circulating 25-hydroxyvitamin D [25(OH)D] and biomarkers of cardiometabolic disease risk, including biomarkers of inflammation, glycemic dysregulation and lipid metabolism, and a panel of 54 plasma proteomic biomarkers, and determined whether lifestyle variables and genetic variation modified these associations. Methods: Participants were from the Toronto Nutrigenomics and Health Study, an ethnically diverse population of individuals aged 20-29 years. Anthropometric measurements were obtained. Participants answered general health and lifestyle and food frequency questionnaires and provided a fasting blood sample for biochemical measurements and genotyping. Results: Across ethnic groups, women who used hormonal contraceptives (HC) had higher 25(OH)D and C-reactive protein (CRP) than women HC non-users and men. Circulating 25(OH)D was positively associated with CRP in the entire population in models not accounting for HC use. However, there was no association after accounting for HC use. 25(OH)D was also not associated with inflammatory cytokines after adjusting for HC use. 25(OH)D was inversely associated with insulin, HOMA-IR, and HOMA-Beta among Caucasians and East Asians and among men and women HC non-users. No biomarkers were associated with 25(OH)D among South Asians and women HC users, although non-significant inverse trends were observed for markers of glycemic dysregulation. Only two of the 54 plasma proteomic biomarkers were associated with 25(OH)D in women HC non-users, and none were associated in men. Among women HC users, after accounting for hormone dose, only three proteins were associated with 25(OH)D. Finally, 25(OH)D affected the association between rs2239182, a variant in the vitamin D receptor (VDR) and the pro-inflammatory cytokine interferon gamma-induced protein 10 (IP-10). However, the association was suggestive of heterosis and may have been due to chance. Conclusions: We identified a confounding effect of HC use on the association between 25(OH)D, biomarkers of inflammation and plasma proteomic biomarkers. In addition, HC use might also affect the association between 25(OH)D and biomarkers of glycemic dysregulation. Genetic variation in VDR did not modify any associations.

Background: Vitamin D may have beneficial effects on cardiometabolic disease, but the evidence is equivocal. This may be due to unaccounted confounders, such as lifestyle factors and genetic variation. We examined the association between circulating 25-hydroxyvitamin D [25(OH)D] and biomarkers of cardiometabolic disease risk, including biomarkers of inflammation, glycemic dysregulation and lipid metabolism, and a panel of 54 plasma proteomic biomarkers, and determined whether lifestyle variables and genetic variation modified these associations. Methods: Participants were from the Toronto Nutrigenomics and Health Study, an ethnically diverse population of individuals aged 20-29 years. Anthropometric measurements were obtained. Participants answered general health and lifestyle and food frequency questionnaires and provided a fasting blood sample for biochemical measurements and genotyping. Results: Across ethnic groups, women who used hormonal contraceptives (HC) had higher 25(OH)D and C-reactive protein (CRP) than women HC non-users and men. Circulating 25(OH)D was positively associated with CRP in the entire population in models not accounting for HC use. However, there was no association after accounting for HC use. 25(OH)D was also not associated with inflammatory cytokines after adjusting for HC use. 25(OH)D was inversely associated with insulin, HOMA-IR, and HOMA-Beta among Caucasians and East Asians and among men and women HC non-users. No biomarkers were associated with 25(OH)D among South Asians and women HC users, although non-significant inverse trends were observed for markers of glycemic dysregulation. Only two of the 54 plasma proteomic biomarkers were associated with 25(OH)D in women HC non-users, and none were associated in men. Among women HC users, after accounting for hormone dose, only three proteins were associated with 25(OH)D. Finally, 25(OH)D affected the association between rs2239182, a variant in the vitamin D receptor (VDR) and the pro-inflammatory cytokine interferon gamma-induced protein 10 (IP-10). However, the association was suggestive of heterosis and may have been due to chance. Conclusions: We identified a confounding effect of HC use on the association between 25(OH)D, biomarkers of inflammation and plasma proteomic biomarkers. In addition, HC use might also affect the association between 25(OH)D and biomarkers of glycemic dysregulation. Genetic variation in VDR did not modify any associations.

La radiocommunication est un domaine d’application en constante évolution. Les organisations, qui utilisent des systèmes de radiocommunication dans leurs tâches quotidiennes, doivent absolument suivre cette évolution pour maintenir leur capacité à réaliser leurs objectifs. Ces organisations utilisent actuellement des systèmes qui sont peu flexibles, très coûteux et rarement compatibles. Les standards du Projet 25 (P25) ont été créés dans le but d’enrayer les problèmes de compatibilité entre les systèmes développés par les différents manufacturiers, tout en offrant un moyen de communication numérique efficace. Le déploiement des systèmes de radiocommunication P25 s’effectue actuellement, au Québec, à partir de sites fixes faisant partie du Réseau national intégré de radiocommunication (RENIR). Le problème rencontré par un déploiement fixe est l’impossibilité de couvrir tout le territoire québécois et l’incapacité à offrir les services lorsqu’un ou plusieurs sites sont mis hors services par l’action éventuelle d’une catastrophe naturelle ou d'une guerre. Une des alternatives au déploiement fixe des radiocommunications est le déploiement mobile qui s’effectue à partir de sites portables et de sites montés sur véhicules routiers et aériens. Cependant, ce type de déploiement est souvent chronophage car il dépend beaucoup de facteurs humains. Ce projet a donc pour objectif de concevoir des algorithmes permettant l’accélération du déploiement mobile des radiocommunications P25. Ainsi, deux algorithmes d’accélération de déploiement ont été conçus et intégrés au prototype d’un contrôleur de sous-système P25. Les tests du prototype permettent d'anticiper des résultats encourageants en ce qui a trait à l’avenir du déploiement mobile du standard de radiocommunication P25. En effet, l’équipe de recherche a déterminé que ce prototype pourrait réduire considérablement le temps requis pour déployer une zone de couverture radio.

Typescript (Photocopy) / Bibliography: leaves i-xii. (3rd paging sequence) / x, 157, xii, 13 leaves : ill ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Botany, 1990

Zugl.: Köln, Univ., Diplomarbeit

Zugl.: München, Univ., Diss., 2007 u.d.T.: Sexualität und Bindung bei jungen Paaren.

Zugl.: Klagenfurt, Univ., Diss., 2006 u.d.T.: Brunner, Eva: Lust or trust? / Hergestellt on demand

Zugl.: Osnabrück, Univ., Diss.

Universiẗat, Diss., 2004--München.