Cette thèse est consacrée à l'étude du groupe d'automorphismes de groupes agissant sur des arbres d'une part, et du rang des groupes de Coxeter d'autre part.<p><p>Via la théorie de Bass-Serre, un groupe agissant sur un arbre est doté d'une structure algébrique particulière, généralisant produits amalgamés et extensions HNN. Le groupe est en fait déterminé par certaines données combinatoires découlant de cette action, appelées graphes de groupes. <p><p>Un cas particulier de cette situation est celle d'un produit libre. Une présentation du groupe d'automorphisme d'un produit libre d'un nombre fini de groupes librement indécomposables en termes de présentation des facteurs et de leurs groupes d'automorphismes a été donnée par Fouxe-Rabinovich. Il découle de son travail que si les facteurs et leurs groupes d'automorphismes sont de présentation finie, alors le groupe d'automorphisme du produit libre est de présentation finie. Une première partie de cette thèse donne une nouvelle preuve de ce résultat, se basant sur le langage des actions de groupes sur les arbres.<p><p>Un groupe accessible est un groupe de type fini déterminé par un graphe de groupe fini dont les groupes d'arêtes sont finis et les groupes de sommets ont au plus un bout, c'est-à-dire qu'ils ne se décomposent pas en produit amalgamé ni en extension HNN sur un groupe fini. L'étude du groupe d'automorphisme d'un groupe accessible est ramenée à l'étude de groupes d'automorphismes de produits libres, de groupes de twists de Dehn et de groupes d'automorphismes relatifs des groupes de sommets. En particulier, on déduit un critère naturel pour que le groupe d'automorphismes d'un groupe accessible soit de présentation finie, et on donne une caractérisation des groupes accessibles dont le groupe d'automorphisme externe est fini. Appliqués aux groupes hyperboliques de Gromov, ces résultats permettent d'affirmer que le groupe d'automorphismes d'un groupe hyperbolique est de présentation finie, et donnent une caractérisation précise des groupes hyperboliques dont le groupe d'automorphisme externe est fini.<p><p>Enfin, on étudie le rang des groupes de Coxeter, c'est-à-dire le cardinal minimal d'un ensemble générateur pour un groupe de Coxeter donné. Plus précisément, on montre que si les composantes de la matrice de Coxeter déterminant un groupe de Coxeter sont suffisamment grandes, alors l'ensemble générateur standard est de cardinal minimal parmi tous les ensembles générateurs. / Doctorat en Sciences / info:eu-repo/semantics/nonPublished

The subject of this diploma thesis is an extension of a two-storey basement sports center in Jeseník nad Odrou. There is a relaxation area and a fitness area in the sports center. It is connected to the existing gym building with the tourist hostel by means of a connecting neck. There is a reception and a café for both facilities. The whole building is then covered with single-layer flat roofs. The main entrance to the building is located on the southeast side of the building at level 1.NP. Vertical constructions are made mainly of ceramic sys-tem elements Porotherm. Ceiling constructions are designed as prefabricated prestressed panels. The staircases are prefabricated reinforced concrete. The project was developed using the computer program AutoCAD.

The center is located on the edge of a village Borová near Chvalšiny. It’s purpose is rehabilitation with horses or therapeutic riding. The architecture is based on a south bohemian farm archetype and is in all aspects wheelchair accessible. The complex consists of a hotel building, hosre stable and a riding hall. The dissertation elaborates complete project documentation to the hotel and stable buildings. The hotel capacity is 25 berths. The whole two stories building is made of ceramic blocks Porotherm. Structurally it´s transverse wall systém. The roof’s inclination is 40°. There is aslo a caretaker’s flat in the hotel. The facade is made of dark coloured wooden battens which contrasts with the white plaster. There are places for eight horses and changing rooms for both empoyees and clients in the stable. The building is partially embedded to the terrain and the walls in the groud and built of concrete blocks. A flat roof is designed as a extensive plant garden. The south well aired facade is covered with stones All constructions correspod to valid standarts ČSN.

Theme of diploma thesis is a Heavy wooden frame in apartment development. The thesis is concerned with a proposal of residential building project, which has the possibility of accommodation for people in rural areas near larger city. This is a residential building with 3 storeys. The first floor is completely wheelchair friendly and there is a flat for the disabled (1+kc). In the first and second floor is placed 7 flats (3x 1+kc, 2x 2+kc, 2x 3+kc). On the third floor there are two flats (4+kc) with entry to the terrace. Building is placed on the base zone and footing. The structural system is consists of a heavy wooden frame. The ceiling structure consists of wood joists anchored into girder frame. In the building there is a flat walkable roof in place of terrace of the apartment on the third floor, otherwise is roof construction consisting of slanting roof with wooden roof truss.

University Residential Centre is the theme of this Master's thesis. The aim was to create a building, which will provide comfortable living and learning to students. The building has three floors - there are student apartments for one to four people in the upper two floors. The ground floor is dedicated to educational purposes. It contains a library and two lecture halls. From the constructional point of view, the structural system is a reinforced concrete skeleton. Main vertical elements are columns and main horizontal are two-way reinforced slabs. Utilization of glass facade and innovative type of thermal insulation can be found interesting.

The diploma thesis deals with new block of flat in Velké Meziříčí (Vysočina). The building is rectangular in shape with five floors and a flat roof. Block of flats contains 29 residential units has wheelchair access and a lift. Bearing and non-bearing walls are made of sand-lime blocks, ceiling structure consists of reinforced concrete hollow core slabs. The facade is made with an external thermal insulation composite system.

This diploma thesis is focused on design of project documentation apartment residence with wellness centre in Beskydy Mountains. It is a three floors apartment residence with wellness centre with basement, with is located in sloping plot in the village of Staré Hamry in Frýdek-Místek. Nearby are 2 ski lifts and 3 ski slopes. The whole area is very used by tourist in summer and winter season. In building is 13 apartments and they are designed to be suitable for a longer stay with one apartment is designed for people with limited mobility. Residence is possible make accommodation for 36 people. In wellness part are designed swimming pool, whirlpool, finish and infra saunas. The main disposal idea was separate an accommodation part from wellness part. The supporting system consists of two structural systems. As a main building material was in basement part used a permanent formwork from vibropressed concrete blocks and in upper floor are used ceramic block Porotherm with voids filed by hydrophobic mineral wool. Loadbearing interior basement part consist of reinforced concrete columns with make a space for parking space for cars. Ceiling construction consists of prestressed hollow core slab Spiroll. Roof is designed as a saddle roof. The main result is the correct design of the building with a correct layout design, correct structural design, architectural, energy saving and safety in use of the building.

Introduction International guidelines endorse the screening of patients for human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV) and Chlamydia trachomatis before assisted reproductive techniques (ART). At present no such guidelines exists in South Africa. At the Reproductive and Endocrine Unit (referred to as “the Unit”) of Steve Biko Academic Hospital, all patients with unknown HIV status are counselled and a blood sample is collected during the initial visit for automated laboratory based HIV screening. These HIV results are not available before semen samples are processed. Furthermore, patients are not screened for HBV, HCV and Chlamydia trachomatis. Couples attending the Unit are of a low to middle socio-economic status and experience financial constraints. Moreover, automated laboratory based assays are expensive to perform. Rapid testing is a cost effective and practical method from screening patients, with a 20–30 minute result turnover time. Until screening at the Unit is improved, the possible identification of semen characteristics that could indicate HIV infection would be a useful tool. Materials and Methods The following rapid point-of-care assays were evaluated: Determine® HIV-1/2 combo test (n=100), Determine® HBsAg test (n=100), DIAQUICK HCV kit (n=74), and the DIAQUICK Chlamydia trachomatis kit (n=30). For profiling, parameters from a basic semen analysis of HIV-positive males (n=60) were compared with HIV-negative males (n=60). Information pertaining to CD4 count, antiretroviral treatment and plasma viral load of HIV-positive males were analysed. Results From all patients included in the study, 8% tested positive for HIV. The risk of a female being HIV-positive was 3.73 times higher than for males. In the pilot study to explore rapid testing for HBV and HCV, 1% and 1.4% of patients tested positive respectively. When testing for Chlamydia trachomatis 31.3% of females, but no males tested positive. Comparing semen profiles, no significant differences were found between samples from HIV positive and negative males or between HIV positive males categorised by CD4 cell count (p>0.05). For the HIV-positive group with a detectable plasma HIV viral load (>40 copies/ml), a significant difference was observed in the semen viscosity (p=0.0460). Significant differences were noted in the sperm motility (immotile sperm p=0.0456, progressive sperm p=0.0192) of patients receiving antiretroviral (ARV) therapy. Discussion and Conclusion The use of rapid testing is an acceptable and feasible option for improving current screening protocols at the Unit. The absence of definite alterations in the semen characteristics of HIV-positive men further motivates the need for a simpler, point-of-care screening protocol. The prevalence of HBV was lower than that reported in the general population of South Africa and further investigation is needed. Although the sample size was small, HCV prevalence was similar to that of the general population. One third of females tested positive for Chlamydia trachomatis. The methodology used was possibly not appropriate for males. This study highlighted the need for guidelines that address the specialised needs of ART clinics in resource-limited and developing countries with a high HIV prevalence. / Dissertation (MSc)--University of Pretoria, 2013. / gm2014 / Obstetrics and Gynaecology / unrestricted

In der vorliegenden Arbeit wird der These nachgegangen, dass sich Baugemeinschaften als Wohnform, die von der Gemeinschaft und dem Zusammenleben geprägt ist, im Hinblick auf den demographischen Wandel und dessen Auswirkungen sich zum lebenslangen Bewohnen eignet. Untersucht wurden die baulichen und architektonischen, aber auch sozialen und organisatorischen Gegebenheiten am Beispiel 13 Dresdner Baugemeinschaften. Am Ende liegen Maßnahmen und Empfehlunen für künftige Bauherren und Planer vor. / The present study traces the hypothesis that joint building ventures as a form of living, that is affected by the community and the cohabit, in view of the demographic change and its effects, are suit to lifelong occupancy. To be proved are the structural and architectural, but also the social and organizational conditions using the example of 13 joint building ventures in Dresden. Finally there are measures and recommendations for future building owners and architects on hand.

1 EINLEITUNG In Deutschland ist Barrierefreiheit im Behindertengleichstellungsgesetz festgeschrieben, indem festgelegt wird, dass Lebensbereiche barrierefrei sind, sofern diese von Menschen mit einer Behinderung ohne besondere Erschwernis und ohne fremde Hilfe nutzbar sind. Dies gilt auch für die Zugänglichkeit von virtuellen Gemeinschaften und neuen Medien, indem bestehende Richtlinien für barrierefreie Webinhalte eingehalten werden sollen.