As part of a vegetation survey program for the newly acquired farms incorporated into the Loskop Dam Nature Reserve, the vegetation of the Hondekraal Section was investigated. The study provides an ecological basis for establishing an efficient wildlife management plan for the Reserve. From a TWINSPAN classification, refined by Braun-Blanquet procedures, 12 plant communities, which can be grouped into eight major plant communities, were identified. A classification and description of the major plant communities are presented as well as a management plan. Descriptions of the plant communities include characteristic species as well as prominent and less conspicuous species of the tree, shrub, herb and grass strata. This study proves that the extended land incorporated into the Reserve contributes to the biological diversity of the Reserve. / Environmental Sciences / M. Tech. (Nature Conservation)

The natural vegetation of the Cradle of Humankind World Heritage Site (COH WHS) was classified using Braun-blanquet methodology. This identified 22 distinct plant communities and 2 variants. Sampling took place over two growing seasons with a total of 91 releves being compiled. A stratified random approach to sampling used Land Types as a means of primary area stratification, with terrain position providing the means for further refinement. The grassland comprised of 12 plant communities and 2 variants and the woodland comprised of 10 plant communities. The classification of the woodland areas included some bush clumps associated with the entrances of caves which were also described independently in which seven distinct plant communities were identified A positive linear correlation exists between the size of the cave entrances and the extent to which the surrounding woody vegetation extends. This suggests the likelihood of cave entrance size influencing the surrounding vegetation. / Environmental Sciences / M. Tech. (Nature Conservation)

Trois modèles de spécialisation hémisphérique sont généralement reconnus en neuropsychologie : le modèle de Luria (verbal versus visuospatial), le modèle de Delis-Kaplan (global versus local) et le modèle des hémisymptômes (hémisymptômes gauches versus droits). Selon un quatrième modèle, le modèle du biais de réponse, une lésion de l'hémisphère gauche entraînerait davantage d'erreurs d'omission alors qu'une lésion de l'hémisphère droit entraînerait davantage d'erreurs de commission. Dans la présente étude, le modèle du biais de réponse est expliqué dans le cadre d'un modèle plus général, le modèle énergétique de Braun. Le but de cette étude est : 1) d'évaluer la validité et la sensibilité de ces quatre modèles par des tests neuropsychologiques, 2) de vérifier si le biais de réponse est observable dans une épreuve écologique de fonctions exécutives complexes en multi-tâche (SAVR) et 3) d'évaluer l'impact de facteurs neurodéveloppementaux sur ces différentes mesures. Les participants sont des enfants, adolescents et jeunes adultes ayant subi une lésion cérébrale unilatérale gauche (N = 27) ou droite (N = 24) dans l'enfance ou l'adolescence. Seules cinq des 34 mesures provenant des tests neuropsychologiques se sont montrées sensibles au côté de la lésion, celles-ci pouvant toutes être rassemblées autour du modèle du biais de réponse. Une dissociation significative du biais de réponse par hémisphère lésé a également été observée sur SAVR, indépendamment du lobe lésé. Les erreurs de commission (modèle du biais de réponse), qui sont souvent négligées dans les tests cliniques en neuropsychologie, s'avèrent très sensibles au côté de la lésion et ce, même dans un échantillon de participants présentant une longue période de récupération (11,6 ans en moyenne). Des pistes d'applications cliniques sont présentées. ______________________________________________________________________________ MOTS-CLÉS DE L’AUTEUR : Spécialisation hémisphérique, lésion unilatérale, enfant, développement, verbal, visuospatial, global, local, héminégligence, hémisymptômes, biais de réponse, modèle énergétique, tonus psychique, fonctions exécutives, multitâche.

As part of a vegetation survey program for the newly acquired farms incorporated into the Loskop Dam Nature Reserve, the vegetation of the Hondekraal Section was investigated. The study provides an ecological basis for establishing an efficient wildlife management plan for the Reserve. From a TWINSPAN classification, refined by Braun-Blanquet procedures, 12 plant communities, which can be grouped into eight major plant communities, were identified. A classification and description of the major plant communities are presented as well as a management plan. Descriptions of the plant communities include characteristic species as well as prominent and less conspicuous species of the tree, shrub, herb and grass strata. This study proves that the extended land incorporated into the Reserve contributes to the biological diversity of the Reserve. / Environmental Sciences / M. Tech. (Nature Conservation)

The natural vegetation of the Cradle of Humankind World Heritage Site (COH WHS) was classified using Braun-blanquet methodology. This identified 22 distinct plant communities and 2 variants. Sampling took place over two growing seasons with a total of 91 releves being compiled. A stratified random approach to sampling used Land Types as a means of primary area stratification, with terrain position providing the means for further refinement. The grassland comprised of 12 plant communities and 2 variants and the woodland comprised of 10 plant communities. The classification of the woodland areas included some bush clumps associated with the entrances of caves which were also described independently in which seven distinct plant communities were identified A positive linear correlation exists between the size of the cave entrances and the extent to which the surrounding woody vegetation extends. This suggests the likelihood of cave entrance size influencing the surrounding vegetation. / Environmental Sciences / M. Tech. (Nature Conservation)

The diploma thesis deals with life and work of a baroque sculptor Jiří František Pacák in East Bohemia. The thesis focuses on Pacák's artistic beginnings in pilgrimage church in Chlumek u Luže. It illustrates influence of sculptor Matyáš Bernard Braun on Pacák's sculpture production and describes his artistic development in town of Žireč, Žacléř, Polička and other places in the region. The thesis includes a catalogue of Pacák's work

Die Homöostase des Knochengewebes wird durch das balancierte Zusammenspiel von Ossifikation und Resorption gewährleistet. Eine in Relation zur Resorption zu starke Ossifikation führt zur Modellierungsstörung, Hyperostose und Sklerose. Knochenerkrankungen mit diesen Merkmalen werden als Sklerosierende Skelettdysplasien erfasst. Gegenstand der vorliegenden Arbeit sind fünf Skelettdysplasien aus dem Formenkreis der Sklerosierenden Skelettdysplasien: (1) Craniometaphysäre Dysplasie, autosomal dominante Form (MIM #123000); (2) Metaphysäre Dysplasie, Typ Braun-Tinschert (MIM *605946); (3) Caffey-Syndrom (MIM *114000); (4) McCune-Albright-Syndrom (MIM #174800); (5) Melorheostose (MIM 155950). Diese werden auf unterschiedlichen pathogenetischen Ebenen charakterisiert, die den Etappen des Weges entsprechen, der mit der Analyse des Phänotyps beginnt und zu einer Aufklärung des Basisdefektes führt. Die Arbeit gliedert sich ein in die Reihe von Bemühungen, zum molekularen Verständnis von Erkrankungen des Skelettsystems beizutragen. / Homeostasis of bone tissue is maintained by the balanced process of bone formation and resorption. Increased ossification in relation to resorption gives rise to conditions with modelling defects, hyperostosis and sclerosis. Skeletal diseases with these signs are classified as sclerosing bone dysplasias. The work presented here focuses on five skeletal dysplasias from the group of sclerosing bone dysplasias: (1) Craniometaphyseal dysplasia, autosomal dominant form (MIM #123000); (2) Metaphyseal dysplasia, Braun-Tinschert type (MIM *605946); (3) Caffey syndrome (MIM *114000); (4) McCune-Albright syndrome (MIM #174800); (5) Melorheostosis (MIM 155950). They were investigated at different pathogenetic levels that represent different steps on the path from phenotypic characterisation to clarification of the respective basic molecular defect. This work has contributed to our understanding of the molecular basis of skeletal diseases.

Karl Ottomar Treibmann fängt in seiner Fünften Sinfonie durch Bezüge zur Französischen Revolution und durch den Austausch mit Künstlern wie Wolfgang Mattheuer oder Volker Braun in vielerlei Weise den Zeitgeist der Friedlichen Revolution von 1989 ein. Eine zusätzliche zeithistorische Aufladung erhält das Werk durch seine Uraufführung durch das Leipziger Gewandhausorchester unter Kurt Masur, die wenige Tage vor dem Fall der Mauer stattfand. Die vorliegende Studie stellt Entstehung, Analyse und Rezeption von Treibmanns Fünfter Sinfonie sowohl in einen zeithistorischen als auch in einen musikgeschichtlichen Zusammenhang. / This study explores Karl Ottomar Treibmann’s Fifth Symphony in its historical contexts. The symphony catches the zeitgeist of the 1989 Peaceful Revolution in various ways: It refers to the French Revolution as well as to Treibmann’s exchange with well-known 20th century artists such as Wolfgang Mattheuer and Volker Braun. Additional historic significance stems from its first performance with the Gewandhaus Orchestra in Leipzig conducted by Kurt Masur. This took place only a few days before the fall of the Berlin Wall. My study discusses the process, analysis, and reception of Treibmann’s Fifth Symphony by following a historical as well as a musicological approach.

Karl Ottomar Treibmann fängt in seiner Fünften Sinfonie durch Bezüge zur Französischen Revolution und durch den Austausch mit Künstlern wie Wolfgang Mattheuer oder Volker Braun in vielerlei Weise den Zeitgeist der Friedlichen Revolution von 1989 ein. Eine zusätzliche zeithistorische Aufladung erhält das Werk durch seine Uraufführung durch das Leipziger Gewandhausorchester unter Kurt Masur, die wenige Tage vor dem Fall der Mauer stattfand. Die vorliegende Studie stellt Entstehung, Analyse und Rezeption von Treibmanns Fünfter Sinfonie sowohl in einen zeithistorischen als auch in einen musikgeschichtlichen Zusammenhang. / This study explores Karl Ottomar Treibmann’s Fifth Symphony in its historical contexts. The symphony catches the zeitgeist of the 1989 Peaceful Revolution in various ways: It refers to the French Revolution as well as to Treibmann’s exchange with well-known 20th century artists such as Wolfgang Mattheuer and Volker Braun. Additional historic significance stems from its first performance with the Gewandhaus Orchestra in Leipzig conducted by Kurt Masur. This took place only a few days before the fall of the Berlin Wall. My study discusses the process, analysis, and reception of Treibmann’s Fifth Symphony by following a historical as well as a musicological approach.

The Mogale’s Gate Biodiversity Centre is a 3 060 ha reserve located within the Gauteng province. The area comprises grassland with woodland patches in valleys and lower-lying areas. To develop a scientifically based management plan a detailed vegetation study was undertaken to identify and describe the different ecosystems present. From a TWINSPAN classification twelve plant communities, which can be grouped into nine major communities, were identified. A classification and description of the plant communities, as well as, a management plan are presented. The area comprises 80% grassland and 20% woodland with 109 different plant families. The centre has a grazing capacity of 5.7 ha/LSU with a moderate to good veld condition. From the results of this study it is clear that the area makes a significant contribution towards carbon storage with a total of 0.520 tC/ha/yr stored in all the plant communities. / Environmental Sciences / M.Sc. (Environmental Management)