Made available in DSpace on 2017-07-10T16:28:07Z (GMT). No. of bitstreams: 1 Ivania.pdf: 4412341 bytes, checksum: 62620d1e7057bb86b705b2a4e688a98b (MD5) Previous issue date: 2016-06-03 / The research analyzed the closing process and closing attempts of schools in the field with the offer of the final years of Primary Education in the countryside in Itapejara D Oeste, Southwest region of Paraná State. The general objective was to analyze this process, as well as showing the resistances and challenges for school in the field. The specific objectives proposed were to identify the changes in the Brazilian countryside since 1950 and its determinations on the reduction of the rural population; contextualize and differentiate the concepts of rural education and field education on the national scene; understand the school closure processes in the rural area in the national and local context, describe the process of implementation and subsequent stop of offering final years/grades of Primary Education in the countryside from a closure and completion case and from a closing way case. From a qualitative approach in the perspective of historical-dialectical materialism, there was a case study, with the use of procedures semi structured interviews and documental analysis. It approached the changes occurred in the Brazilian countryside, due to the capitalism, as well as its effects that culminated in the reduction of rural population and consequently the reduction of enrollment of the schools in the countryside. It also addressed the rural education and rural school and, as a counterpoint, the Field Education in order to analyze the process of closing of these schools later on. The research showed that the offer of Primary Education in the countryside of Itapejara D Oeste both for early years as the final years was precarious and insufficient, proving the negligence of the authorities to the education of the rural population. The analysis of the implementation process, closing and attempts to the closing of the schools showed that the offer of the final years of Elementary School was not the result of a public policy designed in order to attend the country population, but the result of claims and mobilization of the communities, which in the same way resisted in face of attempts to close schools. The practice of closing schools was based in economic-quantitative justification, disregarding cultural aspects that are present in the issue of closing schools in the countryside. In short, the research reflects the great historical debt to the education of the countryside people, noting that it is not enough public educational policies. These should be linked to other public policies that guarantee better life expectancies in the country so that families want and can stay there. / A pesquisa analisou o processo de fechamento e tentativas de fechamento das escolas no campo de anos finais do Ensino Fundamental em Itapejara D Oeste, região Sudoeste do Paraná. O objetivo geral da pesquisa foi analisar esse processo para evidenciar seus determinantes gerais e específicos, bem como apontar as resistências e desafios para as escolas no campo. Como objetivos específicos, propôs-se a identificar as transformações no campo brasileiro a partir de 1950 e suas relações com a redução da população do campo; contextualizar e diferenciar as concepções de educação rural e de educação do campo no cenário nacional; compreender os processos de fechamento de escolas no campo no contexto nacional e no contexto local; descrever o processo de implantação e posterior cessação da oferta das séries/anos finais do Ensino Fundamental no campo a partir de um caso concluso de fechamento e de um em vias de fechamento. A pesquisa adotou uma abordagem qualitativa na perspectiva do materialismo histórico-dialético, como um estudo de caso, utilizando-se dos procedimentos entrevistas semiestruturadas e análise documental. Abordou as transformações ocorridas no campo brasileiro, por conta da expansão do capitalismo, bem como seus efeitos que culminaram na redução da população camponesa e consequentemente na redução das matrículas das escolas no campo. Enfocou a perspectiva da educação e escola rural e, como contraponto, a Educação do Campo, para posteriormente analisar o processo de fechamento dessas escolas. Evidenciou que a oferta do Ensino Fundamental no campo em Itapejara D Oeste, tanto em relação aos anos iniciais quanto aos anos finais, ocorreu de forma precária e insuficiente, o que comprovou o descaso dos poderes públicos com a educação da população do campo. A análise dos processos de implantação, fechamento e tentativas de fechamento das escolas evidenciou que a oferta dos anos finais do Ensino Fundamental não foi resultado de uma política pública para atender as populações no campo, mas sim resultado de reivindicações e mobilizações das comunidades, que da mesma forma resistiram diante das tentativas de fechamento das escolas. A prática de fechamento de escolas embasou-se em justificativas econômico-quantitativas, que desconsideraram aspectos culturais presentes no processo de fechamento das escolas. Em suma, a pesquisa traduz a grande dívida histórica com a educação dos povos do campo e destaca que não bastam políticas públicas educacionais. Estas devem estar atreladas a outras políticas públicas que garantam melhores expectativas de vida no campo para que as famílias queiram e possam permanecer no campo.

The purpose of this study was to identify components of Response to Intervention (RTI) groups associated with increased student growth on progress monitoring tests. The relationship between student growth scores and fidelity of implementation scores, types of groups, types of interventionists, group setting, group time, and various demographic groups were examined. Seven hundred fifteen students enrolled in reading and math groups in an RTI program at 8 schools in an Upper East Tennessee school system participated in this study. Ten research questions and null hypotheses were analyzed using Pearson correlations, independent t tests, and one-way Analyses of Variance. Results indicated significant gains for RTI students in every type of reading and math intervention group and every demographic population. These results contradicted current nationwide studies on RTI in which students made limited gains in intervention.

Securing rare earth elements (REE) for a stable supply require sustainable management strategies in Europe due to a missing local primary production and a dependence on China as the main producer of REE. These elements, like neodymium (Nd) and dysprosium (Dy), are contained in permanent magnets (PM) (mostly NdFeB-magnets) in wind turbines. Addressing the question whether PM-material, Nd- and Dy-contents from wind turbines could help to meet future demands of REE in Europe while reducing simultaneously the import dependence, the purpose of the present work was to analyze the urban mining opportunities, recovery - and recycling potentials for REE from end-of-life (EoL) wind turbines. This thesis aimed to identify current and upcoming stocks as well as material flows of the PM and their containing REE in the wind energy sector. Two European countries, Germany and Denmark, were chosen as case studies to be compared based on created future scenarios and the modeling of the theoretical recycling potential of Nd and Dy in both countries. It could have been identified that the German anthropogenic stock contains greater amounts of NdFeB-magnets and REE compared to the Danish stock. Overall it could be concluded that the countries’ demand could partly be met by using secondary Nd and Dy from the EoL-wind turbines. Although future scenarios were used, the results realistically illustrate the German and Danish anthropogenic stock until 2035 by relying on data of already installed turbines up to 2018, which makes an evaluation of capacities and EoL-turbines, which need to be decommissioned by 2035, achievable. The provided information is valuable for further investigations regarding recovery strategies, feasibility analysis, and future decision-making processes. / För att säkra tillgången på jordartsmetaller (REE) i Europa krävs hållbara beslutsstrategier. Detta på grund av avsaknaden av en inhemsk primärproduktion samt ett beroende av Kina som en huvudprodu-cent av REE. Jordartsmetaller som neodymium (Nd) och dysprosium (Dy), finns kvar i permanenta magneter (PM) (mestadels NdFeB-magneter) i vindturbiner. För att ta itu med frågan om huruvida Nd- och Dy-innehållet i PM-material, från vindturbiner skulle kunna bidra till att uppfylla framtida efter-frågan på REE i Europa samtidigt som importberoendet skulle minskas, var syftet med detta arbete att analysera möjligheterna till urban utvininng, återvinning och materialutnyttjande av REE från vindtur-biner i uttjänt tillstånd (EoL).Syftet med denna uppsats var att identifiera nuvarande och kommande tillgångar samt materialflöden av PM och därav följande REE inom vindkraftsektorn. Två europeiska länder, Tyskland och Danmark, valdes ut som fallstudier och jämfördes i framtida scenarier och mo-dellering av Nd -och Dy teoretiska återvinningspotential i båda länderna. Det kunde konstaterats att det tyska antropogena beståndet innehåller större mängder NdFeB-magneter och REE än det danska beståndet. Sammanfattningsvis kan man dra slutsatsen att ländernas efterfrågan delvis kunde tillgodo-ses genom att man använde sekundär Nd och Dy från EoL-vindturbiner. Även om framtida scenarier användes illustreras resultatet på ett realistiskt sätt det det antropogena lagret i Tyskland och Danmark fram till 2035 genom att man förlitar sig på uppgifter om redan installerade turbiner fram till 2018, vilket gör det möjligt att göra en utvärdering av kapaciteten och antal EoL-turbiner, som måste av-vecklas senast 2035. Informationen är värdefull för ytterligare utredningar om återvinningsstrategier, genomförbarhetsanalys och framtida beslutsprocesser.

Les acides biliaires sont des composés naturels existants dans le corps humain. Leur biocompatibilité, leur caractère amphiphile et la rigidité de leur noyau stéroïdien, ainsi que l’excellent contrôle de leurs modifications chimiques, en font de remarquables candidats pour la préparation de matériaux biodégradables pour le relargage de médicaments et l'ingénierie tissulaire. Nous avons préparé une variété de polymères à base d’acides biliaires ayant de hautes masses molaires. Des monomères macrocycliques ont été synthétisés à partir de diènes composés de chaînes alkyles flexibles attachées à un noyau d'acide biliaire via des liens esters ou amides. Ces synthèses ont été réalisées par la fermeture de cycle par métathèse, utilisant le catalyseur de Grubbs de première génération. Les macrocycles obtenus ont ensuite été polymérisés par ouverture de cycle, entropiquement induite le catalyseur de Grubbs de seconde génération. Des copolymères ont également été préparés à partir de monolactones d'acide ricinoléique et de monomères cycliques de triester d’acide cholique via la même méthode. Les propriétés thermiques et mécaniques et la dégradabilité de ces polymères ont été étudiées. Elles peuvent être modulées en modifiant les différents groupes fonctionnels décorant l’acide biliaire et en ayant recours à la copolymérisation. La variation des caractéristiques physiques de ces polymères biocompatibles permet de moduler d’autres propriétés utiles, tel que l’effet de mémoire de forme qui est important pour des applications biomédicales. / Bile acids are natural compounds in the body. Their biocompatibility, facial amphiphilicity, rigidity of steroid nucleus, and ease of chemical modification make them excellent candidates as building blocks for making biodegradable materials used in drug delivery and tissue engineering applications. We have prepared main-chain bile acid-based polymers having high molecular weights. Macrocyclic monomers were synthesized from dienes, which consist of flexible alkyl chains attached to a bile acid core through either ester or amide linkages, via ring closing metathesis using first-generation Grubbs catalyst. They were polymerized using entropy-driven ring-opening metathesis polymerization using second-generation Grubbs catalyst. Copolymers were also prepared from monolactone of ricinoleic acid and cholic acid-based cyclic triester monomer via the same method. The thermal and mechanical properties and degradation behaviours of these polymers have been investigated. The properties can be tuned by varying the chemical linking with the bile acid moiety and by varying the chemical composition of the polymers such as copolymerization with ricinoleic acid lactones. The tunability of the physical properties of these biocompatible polymers gives access to a range of interesting attributes. For example, shape memory properties have been observed in some samples. This may prove useful in the design of materials for biomedical applications.

The current South African tax system offers livestock farmers a variety of forms of relief. There are also certain aspects that do not make it so advantageous to be regarded as a farmer by the tax collector. A large number of farmers emigrate to other countries without knowing how the tax systems of those countries function or how much tax they will have to pay. With these factors in mind the question arises concerning how other countries tax their livestock farmers and what relief is provided to them. The objective of this research is to examine and compare the theoretical tax legislation of South Africa, Australia and New Zealand, where after it will be applied in a case study. Finally conclusions and recommendations will be made based on the results of the research. It was found that, although the relief provided to South African livestock farmers regarding some aspects exceeds the relief provided in Australia and New Zealand, there are certain aspects that could be adjusted in order to make it more advantageous for livestock farmers to stay in South Africa. These proposed adjustments can indirectly stimulate the national economy. / Thesis (M.Com. (Tax))--North-West University, Potchefstroom Campus, 2011.

The current South African tax system offers livestock farmers a variety of forms of relief. There are also certain aspects that do not make it so advantageous to be regarded as a farmer by the tax collector. A large number of farmers emigrate to other countries without knowing how the tax systems of those countries function or how much tax they will have to pay. With these factors in mind the question arises concerning how other countries tax their livestock farmers and what relief is provided to them. The objective of this research is to examine and compare the theoretical tax legislation of South Africa, Australia and New Zealand, where after it will be applied in a case study. Finally conclusions and recommendations will be made based on the results of the research. It was found that, although the relief provided to South African livestock farmers regarding some aspects exceeds the relief provided in Australia and New Zealand, there are certain aspects that could be adjusted in order to make it more advantageous for livestock farmers to stay in South Africa. These proposed adjustments can indirectly stimulate the national economy. / Thesis (M.Com. (Tax))--North-West University, Potchefstroom Campus, 2011.

Chapter 1 gives background information on proteases and discusses the concept of protease inhibition as a therapeutic strategy for humans. It introduces the key concept that conformation defines biological activity. It also outlines how proteases almost universally bind their substrate/inhibitors in an extended β-strand conformation. The use of calpain as a prototype protease for the testing of β-strand mimics synthesised later in the thesis is also discussed. Chapter 2 describes how molecular modeling was used to rationalise the structure based activity relationships (SAR) of known calpain inhibitors. Molecular modeling was then used to successfully design a number of acyclic β-strand mimics. The synthesis and testing of eight such inhibitors is described. The most potent β-strand mimic prepared was 2.13. This was determined to have an IC₅₀ of 30 nM against calpain II. Chapter 3 outlines the history and application of ring closing metathesis (RCM) to the synthesis of cyclic compounds. The attempted synthesis of an eight membered cyclic nitrogen to nitrogen conformationally constrained dipeptide is described. The synthesis of a conformationally constrained β-amino acid calpain inhibitor (3.73) is also described. A novel calpain inhibitor motif was designed in Chapter 4. On the basis of this an in-silico combinatorial library of two hundred and eighty eight possible β-strand templates was prepared. Conformational analysis of this library was performed and from this a number of excellent β-strand templates were identified and selected for synthesis. The preparation of ten β-strand templates is described. New microwave irradiation methodology was developed to achieve this. vii The formation of a six-membered catalyst deactivating chelate is also proposed to explain why some dienes fail to undergo RCM. Two methods to circumvent the formation of such a chelate are outlined. The addition of Lewis acid chloro-dicyclohexyl borane to the RCM reaction mixture and chain length alteration are investigated. Chapter 5 describes the design of macrocyclic β-strand mimics using induced fit molecular modelling. The physicochemical properties of these were calculated in-silico. From this analysis a number of Tyr-XX-Gly based and Tyr-XX-Cys based macrocyclic calpain inhibitors were selected for synthesis. The preparation and testing of these are described. In the Tyr-XX-Gly macrocyclic system a number of variables were investigated and numerous SAR implications concluded. Aldehyde 5.14 was identified as the best electrophilic warhead macrocyclic calpain inhibitor with an IC₅₀ against calpain II of 27 nM. The best non-electrophilic warhead macrocycle (5.13) had an IC₅₀ against calpain II of 704 nM. Chapter 6 describes synthetic optimisation for the preparation of calpain inhibitors 2.13, 5.14 and 5.17. Multi-gram quantities of each were prepared. Aldehydes 2.13 and 5.14 were evaluated as anti-cataract agents using in-vivo cataract sheep model. Both of these β-strand mimics were demonstrated to retard cataract development. Macrocycle 5.14 was found to be the most effective, decreasing the rate of cataract development between forty four and forty nine per cent relative to control. Chapter 7 outlines the attempted development of RCM methodology for the chiral synthesis of α-α disubstituted amino acid lactams. In addition, methodology for the stereoselective incorporation of a C-N constrained β-amino acid carbocycle into a peptide or peptidomimetic is described.

Esta pesquisa vem ao modo de um diálogo ou ponte entre fenomenologia e ciência geográfica. O percurso tem início com o reconhecimento da ontologia comum entre sujeito e mundo, continua com a experiência da percepção com abertura e fechamento das coisas, numa operação constituinte do meio como mundo e lugar, pela atividade humana, diante daquele instituído, passivo, acabado. Das coisas chega-se ao lugar, deste vai-se ao mundo, até que dele se retorna; um ciclo. A ontologia comum estabelecida como ontologia encarnada permite procurar no recuo ao pré-objetivo, outros atributos normalmente desconsiderados dos lugares, os quais serviram de parâmetro à sugestão de avaliação e prognóstico. Para tanto, foram realizados trabalhos de campo como oportunidade de aplicação das noções consideradas. / This research is the way of dialogue or a bridge between phenomenology and geographical science. The route begins with the common ontology between subject and world, continues with the experience of perception with opening and closing of things, a constituent of operation as a means world and place for the activity, given that up, liabilities, finished. Of the things you get to the place, this go to the world, even if it returns, is a cycle. The ontology established as common ontology makes searching in the red throwback to pre-order, the pre-purpose other attributes normally disregarded, the places, thinking on assessment and prognosis of these places. To this end, the field work was conducted as an opportunity for the application of the concepts considered.

Visual simultaneous localization and mapping (SLAM) as field has been researched for ten years, but with recent advances in mobile performance visual SLAM is entering the consumer market in a completely new way. A visual SLAM system will however be sensitive to non cautious use that may result in severe motion, occlusion or poor surroundings in terms of visual features that will cause the system to temporarily fail. The procedure of recovering from such a fail is called relocalization. Together with two similar problems localization, to find your position in an existing SLAM session, and loop closing, the online reparation and perfection of the map in an active SLAM session, these can be grouped as visual location recognition (VLR). This thesis presents novel results by combining the scalability of FabMap and the precision of 13th Lab's tracking yielding high-precision VLR, +/- 10 cm, while maintaining above 99 % precision and 60 % recall for sessions containing thousands of images. Everything functional purely on a normal mobile phone. The applications of VLR are many. Indoors, where GPS is not functioning, VLR can still provide positional information and navigate you through big complexes like airports and museums. Outdoors, VLR can improve the precision of GPS tenfold yielding a new level of navigational experience. Virtual and augmented reality applications are other areas that benefit from improved positioning and localization.

This master’s thesis is about setting of distance protections. The first part is focused on a brief analysis of the basic types of failures and distance protections tripping characteristics and their co-operation with automatic re-turn. The most extensive theoretical chapter is devoted to specific influences that negatively affect the proper operation of distance protections. The practical part is about calculation of symmetrical short-circuit and dissymmetrical short-circuit conditions with consideration of fault resistance and the actual calculation settings of distance protections. Calculations of short-circuit conditions and setting of distance protections are made on a specific part of the network of E.ON in area Prostejov, which is supplied from the substation 400/110 kV Otrokovice.