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This study deals with Czech speakers in Australia, focusing on their use of the Czech and English languages as tools of belonging to a community. Its aim is to discuss the situation of Czech speakers on the continent from the perspective of a small Czech language in an English-speaking country. The starting point for the study is scientific publications on bilingualism, multilingualism and transnationalism issued in the Czech and English-speaking environments. Another source is books about the history of the immigration and language policies in Australia and about the Australian identity. Finally, the methods involve field research based on participant observation of groups of Czechs in social networks and during Czech church services in Sydney in November 2015. Fieldwork is also based on semi-structured interviews which took place in Australia between August 2014 and January 2016. They were intended to study the reality of Czech speakers in Australia and to illustrate the theories on the use of language by bilingual speakers in the Australian context. The first part of this study gives the theoretical background to the notions of transnationalism, belonging to a group, bilingualism and changes in language use. The second part focuses on language and immigration policies of the states of Australia...

The TiO2-catalyzed synthesis of nucleosides in non-aqueous formamide environ- ment via so-called acyclonucleoside intermediates represents an alternative way for the emergence of nucleic acids monomeric units, which could address the the fundamental problem associated with the formation of a --glycosidic bond between a nucleobase and a sugar moiety. In this computational contribution we present a plausible reaction route for the prebiotic TiO2-catalyzed synthesis of purine C2- and C3-acyclonucleosides in formamide, which does not require photocatalytic or radical chain mechanisms. The maximum computed activation energy along the proposed reaction channel is ≥ 32 kcal·mol≠1 , which is clearly feasible under the experimental conditions of the Saladino synthesis. We show that the rate determining step of the entire reaction path is the deprotonation of the formaldehyde hydrate methylene carbon occurring likely on defective binding sites of an anatase surface. Our calculations thus support the view of Saladino et al. about the catalytic role of the TiO2 surface in the one-pot synthesis of purine acyclonucleosides in heat formamide solution.

in English This thesis creates a complex overview of quality marks used on food in the Czech food market both strictly Czech and originated in the EU legislation as well as decribes the procedure of their creation, legal forms of use and control system. It discusses their legal basis in international law, European law and Czech law and their legal aspects mainly in industrial property law and food and agriculture law. It then compares and contrasts the legal base with the Austrian legislation and analyzes the differences and simmilarities in these two countries and also evaluates its social context. The aim of this thesis is also to clarify the term 'quality'as understood by each of the quality marks and hence on to devide these marks into different categories.

Geographical aspects of soccer players' origin - football academies: Comparison of Czechia and Serbia Abstract The goal of this thesis is to identify football academies in Czechia and Serbia since 1993. That accomplishes through presenting theoretical approaches of sport geography, then documents the globalisation of sport and especially the diffusion of football in space and time. It submits also characteristics of the successful football academy and finds out positive economical effects, which are generated by production of professional football players. The thesis researches in analytical part not only regional divide of the football academies, which are identified based on the place of birth, first youth and professional clubs and transfer value of the individual players, but the influence of different factors on success of club in national league as well. Key words: geographical aspects, origin, football academies, transfers, economic profitability Powered by TCPDF (www.tcpdf.org)

Chaque division cellulaire requiert une duplication précise du génome. Des dizaines de milliers de sites d’initiation de la réplication d’ADN (origines de réplication) sont impliqués dans la réplication complète du génome humain. L’activation des origines de réplication est régulée précisément et des études génomiques extensives ont démontré la présence de caractéristiques génomiques associées à l’activation des origines de réplication. Le complexe de pré-réplication (pre-RC) est la base de l’initiation de la réplication et consiste en deux sous-complexes majeurs : l’ « origin recognition complex » (ORC) qui interagit directement avec l'ADN et est nécessaire pour recruter le second sous-complexe, les hélicases Mcm2 7, qui sont responsables de l'initiation de la réplication. La régulation de l’assemblage du pre-RC est bien étudiée, mais les caractéristiques de la chromatine qui déterminent le positionnement du pre-RC sur le génome restent peu connues. Les études génomiques par immuno-précipitation de la chromatine et séquençage à haut débit (ChIP-seq) des pre-RCs sont rares et jusqu’à aujourd’hui seulement disponibles pour ORC. Du fait que Mcm2-7 migre de son site de chargement initial, il est crucial d'obtenir des informations sur le positionnement des Mcm2-7 pour la compréhension complète de la régulation de la réplication. Ce travail présente la première analyse génomique par méthode ChIP-seq des deux sous-unités majeures du pre-RC, ORC et Mcm2-7, dans la lignée cellulaire de lymphome de Burkitt Raji infectée par le virus d’Epstein-Barr (EBV). La présence du génome d’EBV permet d'avoir un contrôle interne de la qualité de nos expériences, en comparant les positions de pre-RC déterminées avec des positions du pre-RC précédemment publiées. Sur le génome humain, les résultats de séquençage du pre-RC corrèlent bien avec des zones de réplication active. De façon intéressante, les zones de terminaison de la réplication étaient spécifiquement bas en pre-RC, spécialement en Mcm2-7. La localisation des sites d'initiation de la réplication identifiés est généralement bien corrélée avec les sites de transcription active. En effet, des sites d’assemblage du pre-RC de haute affinité sont localisés préférentiellement en voisinage de sites de transcription active, ce qui est possiblement dû à l’accessibilité de la chromatine dans ces régions. La fixation de Mcm2-7 fluctue de façon dépendante du cycle cellulaire, ce qui suggère des translocations de Mcm2 7 en G1, probablement dépendantes de la machinerie active de la transcription. Ces résultats indiquent que les positions de ORC et Mcm2-7 sont principalement dépendantes de l’accessibilité de la chromatine avec un accès privilégié dans la chromatine active et Mcm2 7 étant le déterminant majeur de l’initiation de la réplication. Au sein de l'hétérochromatine, ORC est enrichi dans des zones associées avec l'histone modifié H4K20me3. Cependant, cet enrichissement est moins important pour les Mcm2-7. En utilisant un système de réplication basé sur des plasmides, nous avons démontré que l’association d'ORC et H4K20me3 favorise l’assemblage du pre-RC et l’initiation de la réplication. Cette observation suggère que l’interaction ORC-chromatine est le déterminant majeur de la régulation de la réplication d’ADN au sein de l’hétérochromatine. En conclusion, cette étude propose deux mécanismes différents de la régulation de l'assemblage du pre-RC dépendants de l’environnement de la chromatine. / With every cell division, the genome needs to be faithfully duplicated. Tens of thousands of DNA replication initiation sites (origins of replication) are involved in replicating the human genome. Origin activation is precisely regulated and extensive genome-wide studies found association of origin activation to several different genomic features. The pre-replication complex (pre RC) is the basis for replication initiation and consists of two major subcomponents: the origin recognition complex (ORC) binds DNA and is required for loading of the second component, Mcm2-7 helicases, which initiate DNA replication. Regulation of pre-RC assembly is well studied, however, chromatin features driving pre RC positioning on the human genome remain largely unknown. Genome-wide pre-RC chromatin immunoprecipitation experiments followed by sequencing (ChIP-seq) studies are rare and so far only performed for ORC. As Mcm2-7 can translocate from their initial loading site, information about Mcm2-7 positioning are required for full understanding of DNA replication regulation.This work presents the first genome-wide ChIP-seq analysis of the two major pre-RC subcomponents ORC and Mcm2-7 in the Epstein-Barr virus (EBV) infected Burkitt’s lymphoma cell line Raji. Successful ChIPs were validated on the EBV genome by comparing obtained pre RC positions with already existing pre-RC ChIP-on chip data. On the human genome, pre-RC sequencing results nicely correlated with zones of active replication. Interestingly, zones of replication termination were specifically depleted from pre-RC components, especially from Mcm2 7. Active DNA replication is known to correlate with active transcription. Indeed, strong pre-RC assembly preferentially occurred at sites of active transcriptional regulation, presumably determined by chromatin accessibility. Strong Mcm2-7 binding thereby fluctuated cell cycle-dependently, arguing for Mcm2-7 translocations during G1, possibly depending on the active transcriptional machinery. These results indicate ORC and Mcm2-7 positions being mainly dependent on chromatin accessibility in active chromatin, with Mcm2-7 being the major determinant of replication initiation. In heterochromatin, ORC was enriched at H4K20me3 sites, while Mcm2-7 enrichment was less prominent. Employing a plasmid-based replication system, ORC association to H4K20me3 was proven to promote successful pre-RC assembly and replication initiation, situating direct ORC-chromatin interactions being the major determinant for DNA replication regulation in heterochromatin. Taken together, this study proposes two different modes of pre-RC assembly regulation depending on chromatin environment.

The full text of this thesis/dissertation is not available online. Pending permission from the author/supervisor access may be provided on <a href="mailto:upetd@up.ac.za">request.</a> Read the abstract in the section 00front of this document. / Thesis (PhD (New Testament)--University of Pretoria, 2007. / New Testament Studies / unrestricted

The phenomenon of psychic distance has been thoroughly researched regarding its influence on the internationalization patterns of firms into foreign markets. Psychic distance has been determined by a plethora of existing literature as an inhibitor to trade; however, much of this research only takes on the perspective of the firm. The construct of psychic distance has primarily been examined on the supply side, while a lack of literature exists examining the impact of psychic distance from the consumer’s perspective. Furthermore, the academic world has devoted little attention to applying the psychic distance construct to e-commerce, especially in terms of retail. Due to the continuously rising significance of e-commerce, especially in terms of cross-border retail, understanding the way in which consumers perceive foreign international online vendors (IOVs) is essential to business success. This thesis contributes to the existing research regarding psychic distance, by seeking to answer the following research questions: "How do varying levels of perceived psychic distance impact the online purchasing behaviors of consumers?" and "How does the impact of perceived psychic distance on purchasing behaviors vary based on consumer’s nationality?". To answer these questions, empirical data is collected through the conduct of five focus groups of varying nationalities, each either containing consumers of French, German, Swedish, Russian or Chinese nationality. The analysis of empirical data is built upon a theoretical foundation using the conceptualization of distance defined by Dow &amp; Karunaratna (2006), consumer nationality and retailer country of origin (COO). The findings of this thesis conclude that perceived psychic distance likely has somewhat of an influence on consumer online purchasing behaviors. However, factors such as development level of retailer COO, retailer COO familiarity, development level of consumer nationality, and consumer ethnocentrism have more measurable impacts on the purchasing behaviors of consumers in the online retail context.

All known living cells contain a complex set of molecular machinery to support their growth and replication. However, the earliest cells must have been much simpler, consisting of a compartment and a genetic material to allow for Darwinian evolution. To study these intermediates, plausible model `protocells' must be synthesized in the laboratory since no fossils remain. Recent work has shown that fatty acids can self-assemble into vesicles that are able to grow and divide through simple mechanisms. However, a self-replicating protocell genome has not yet been developed. Here we discuss studies of systems that allow for the copying of nucleic acid templates without enzymes and how they could be developed into a genetic material.

Background: Many HIV/AIDS patients experience pain. This is often associated with advanced HIV/AIDS infection and side effects of treatment. In sub-Saharan Africa, pain management for people with HIV/AIDS is suboptimal. With survival extended as a direct consequence of improved access to antiretroviral therapy, the prevalence of HIV/AIDS related pain is increasing. As most care is provided at home, the management of pain requires patient and family involvement. Pain education is an important aspect in the management of pain in HIV/AIDS patients. Aim: The aim of this study was to evaluate the effects of a pain educational intervention on pain severity and pain related outcomes among patients with HIV/AIDS and their family carers. Methods: Two systematic reviews were conducted: (1) to examine the evidence base of the effectiveness of educational interventions delivered to people living with HIV/AIDS on pain severity, pain interference, quality of life, knowledge of pain management, and (2) To examine the evidence base of the effectiveness of educational interventions delivered to their family carers on knowledge of pain management, quality of life and carer motivation. A randomised controlled trial was conducted at the HIV and palliative care clinics of two public hospitals in Malawi. To be eligible, patient participants had a diagnosis of HIV/AIDS (stage III or IV). Carer participants were individuals most involved in the patient’s unpaid care. Eligible participants were randomised to either: (1) a 30-minute face–to-face educational intervention covering pain assessment and management, augmented by a leaflet and follow-up telephone call at two weeks; or (2) usual care. Those allocated to the usual care group receive the educational intervention after follow-up assessments had been conducted (wait-list control group). The primary outcome was average pain severity measured by the Brief Pain Inventory. Secondary outcomes were pain interference, patient knowledge of pain management, patient quality of life. Carer outcomes were; carer knowledge of pain management, caregiver motivation and carer quality of life. Follow-up assessments were conducted eight weeks after randomisation by nurses’ blind to allocation. Results: Systematic review Eight published randomised controlled trials of educational interventions among patients with HIV/AIDS were identified. Only one study examined the effect on pain severity but the results were not statistically significant. Three studies reported positive effects in improving severity and frequency of symptoms, three reported improvement in quality of life and two studies found improvement in knowledge. Seven published studies of family carers of HIV/AIDS patients were identified. Only three of which were randomised controlled trials. Five of these reported that educational interventions were effective in reducing psychosocial outcomes. Two studies reported that the interventions improved knowledge outcomes among family carers of HIV/AIDS patients. Trial Of the 182 patients/carers dyads randomised; 167 patients and 157 carers completed the trial. At follow-up, patients in the intervention group experienced a greater decrease in average pain severity score 21.25 (mean difference 21.25, 95% confidence interval 16.7 to 25.8; P <0.001). Patients in the intervention group reported, less pain interference (mean difference 24.5, 95% confidence interval 19.61 to 29.38; P<0.001), had improved knowledge of pain management (mean difference 20.39, 95% confidence interval 17.51 to 23.27; P<0.001), and a better quality of life (mean difference 28.76, 95% confidence interval 24.62 to 32.91; P<0.001). At follow-up carers in the intervention group had improved knowledge (mean difference 20.32, 95% confidence interval 17.37 to 23.28; P<0.001), greater motivation (mean difference 7.64, 95% confidence interval 5.15 to 10.13; P<0.001) and better quality of life (mean difference 34.16, 95% confidence interval 30.15 to 38.17; P<0.001). Conclusion: Current evidence of educational interventions among HIV/AIDS and family carers on pain severity is inconclusive and based on a relatively small number of studies, many of which have methodological problems. A relatively simple form of pain education is effective in reducing pain and improving outcomes for patients with HIV/AIDS and their carers. Greater attention needs to be given to incorporating this into the routine care of people with HIV/AIDS in sub-Saharan Africa. Trial registration: Current Controlled Trials ISRCTN72861423.