OPSOMMING: 'n Literatuurstudie is onderneem oor musikale ontlening soos dit in verskillende tydperke in die verlede gemanifesteer het. 'n Literatuurstudie is ook onderneem oor die historiese verband tussen Buxtehude en Bach, musikaal en andersins. 'n Indringende ondersoek na ooreenkomste in melodiese openingsformasies in die vrye orrelwerke van Buxtehude en Bach is gedoen. Die resultate is gesistematiseer deur dit in kategorieë in te deel. Repertoriums uit voorafgaande tydperke is betrek, om daaruit gemeenskaplike historiese spore, wat verband hou met die ooreenkomste in tematiese materiaal in die vrye orrelwerke van Buxtehude en Bach, aan te dui. Vroeëre repertoriums wat betrek is, sluit byvoorbeeld Middeleeuse cantus plani, Joodse melodieë soos opgeteken deur Idelsohn, die Geneefse Psalter en vroeë klawerbordliteratuur in. Die resultate van die ontleding is gesistematiseer in 'n nuut-ontwerpte model wat gebaseer is op ooreenkomstige melodiese aanvangspatrone in die vrye orrelwerke van Buxtehude en Bach. Hierdie sistematiese model is nie slegs op die tematiese materiaal van Buxtehude en Bach van toepassing nie, maar ook op tematiese materiaal wat veer verder in die verlede teruggevind kan word, tot sover as die Delfiese himnes van 127 v.C. In hierdie studie is insig in musikale ontlening verkry uit die merkbare ooreenkomste tussen die melodiese aanvangspatrone in die tematiek van Bach se vrye orrelwerke en die van Buxtehude. Die insig is verdiep deur die sistematiese ordening van hierdie ooreenkomste, en die vasstelling dat die ooreenkomste op gemeenskaplike historiese spore teruggaan. In die tradisionele studie van musiektekstuur is harmoniese progressies gesistematiseer met die vier kadense aan die eindes van frases as uitgangspunt. 'n Ooreenkomstige sistematisering van melodiese patrone wat aan die begin van frases voorkom, is egter, sover vasgestel kon word, nog nie voorheen onderneem nie. 'n Nuwe bydrae tot die musiekwetenskap is dus gelewer deurdat die melodiese openingspatrone volgens 'n nuut-ontwerpte model gesistematiseer is. / SUMMARY: Musical borrowing in Western music is a vast field, the history of which, according to J. Peter Burkholder, still has to be written. The main objective of this study is to provide a historical perspective on musical borrowing to serve as a background for a comparative study of thematics in the free organ works of Buxtehude and Bach. However, to provide a more comprehensive perspective on the phenomenon of musical borrowing and traces from the past, one requires a historical consciousness which goes further than Bach's immediate past. The research includes a study of literature on musical borrowing as it has manifested itself in various eras. This literature study also includes an investigation into the historical connection between Buxtehude and Bach, musically and otherwise. Similarities in melodic opening formations in the free organ works by Buxtehude and Bach are pointed out. The results are systematicised by the classification into categories. The classification draws on repertoires from previous eras in order to indicate common historical traces relating to correspondences of thematic material in the free organ works by Buxtehude and Bach. Earlier repertoires include Medieval chants, Jewish melodies recorded by Idelsohn, the Genevan Psalter and early keyboard literature. The results of the analysis are systematised in a newly designed model which is based on corresponding melodic opening patterns in the free organ works by Buxtehude and Bach. This systematic model applies not only to thematic material of Buxtehude and Bach but also to thematic material which can be traced back far further into the past, in fact, as far back as the Delphic hymns of 127 BC. This study provides insight into musical borrowing based on the noticeable similarities between melodic opening phrases in the thematics of the free organ works by Bach and Buxtehude. This insight is enhanced by the systematic ordering of these similarities and the realisation that the similarities are based on common historical traces. In the traditional study of musical texture harmonic progressions are systematised, using the four cadences at the ends of phrases as the point of departure. However, melodic patterns which occur at the beginnings of phrases, have not, as far as I know, been similarly systematised. This systemisation of melodic opening patterns according to a newly designed model therefore constitutes a new contribution to research in musicology. / Thesis (Ph.D. (Music))--North-West University, Potchefstroom Campus, 2010.

OPSOMMING: 'n Literatuurstudie is onderneem oor musikale ontlening soos dit in verskillende tydperke in die verlede gemanifesteer het. 'n Literatuurstudie is ook onderneem oor die historiese verband tussen Buxtehude en Bach, musikaal en andersins. 'n Indringende ondersoek na ooreenkomste in melodiese openingsformasies in die vrye orrelwerke van Buxtehude en Bach is gedoen. Die resultate is gesistematiseer deur dit in kategorieë in te deel. Repertoriums uit voorafgaande tydperke is betrek, om daaruit gemeenskaplike historiese spore, wat verband hou met die ooreenkomste in tematiese materiaal in die vrye orrelwerke van Buxtehude en Bach, aan te dui. Vroeëre repertoriums wat betrek is, sluit byvoorbeeld Middeleeuse cantus plani, Joodse melodieë soos opgeteken deur Idelsohn, die Geneefse Psalter en vroeë klawerbordliteratuur in. Die resultate van die ontleding is gesistematiseer in 'n nuut-ontwerpte model wat gebaseer is op ooreenkomstige melodiese aanvangspatrone in die vrye orrelwerke van Buxtehude en Bach. Hierdie sistematiese model is nie slegs op die tematiese materiaal van Buxtehude en Bach van toepassing nie, maar ook op tematiese materiaal wat veer verder in die verlede teruggevind kan word, tot sover as die Delfiese himnes van 127 v.C. In hierdie studie is insig in musikale ontlening verkry uit die merkbare ooreenkomste tussen die melodiese aanvangspatrone in die tematiek van Bach se vrye orrelwerke en die van Buxtehude. Die insig is verdiep deur die sistematiese ordening van hierdie ooreenkomste, en die vasstelling dat die ooreenkomste op gemeenskaplike historiese spore teruggaan. In die tradisionele studie van musiektekstuur is harmoniese progressies gesistematiseer met die vier kadense aan die eindes van frases as uitgangspunt. 'n Ooreenkomstige sistematisering van melodiese patrone wat aan die begin van frases voorkom, is egter, sover vasgestel kon word, nog nie voorheen onderneem nie. 'n Nuwe bydrae tot die musiekwetenskap is dus gelewer deurdat die melodiese openingspatrone volgens 'n nuut-ontwerpte model gesistematiseer is. / SUMMARY: Musical borrowing in Western music is a vast field, the history of which, according to J. Peter Burkholder, still has to be written. The main objective of this study is to provide a historical perspective on musical borrowing to serve as a background for a comparative study of thematics in the free organ works of Buxtehude and Bach. However, to provide a more comprehensive perspective on the phenomenon of musical borrowing and traces from the past, one requires a historical consciousness which goes further than Bach's immediate past. The research includes a study of literature on musical borrowing as it has manifested itself in various eras. This literature study also includes an investigation into the historical connection between Buxtehude and Bach, musically and otherwise. Similarities in melodic opening formations in the free organ works by Buxtehude and Bach are pointed out. The results are systematicised by the classification into categories. The classification draws on repertoires from previous eras in order to indicate common historical traces relating to correspondences of thematic material in the free organ works by Buxtehude and Bach. Earlier repertoires include Medieval chants, Jewish melodies recorded by Idelsohn, the Genevan Psalter and early keyboard literature. The results of the analysis are systematised in a newly designed model which is based on corresponding melodic opening patterns in the free organ works by Buxtehude and Bach. This systematic model applies not only to thematic material of Buxtehude and Bach but also to thematic material which can be traced back far further into the past, in fact, as far back as the Delphic hymns of 127 BC. This study provides insight into musical borrowing based on the noticeable similarities between melodic opening phrases in the thematics of the free organ works by Bach and Buxtehude. This insight is enhanced by the systematic ordering of these similarities and the realisation that the similarities are based on common historical traces. In the traditional study of musical texture harmonic progressions are systematised, using the four cadences at the ends of phrases as the point of departure. However, melodic patterns which occur at the beginnings of phrases, have not, as far as I know, been similarly systematised. This systemisation of melodic opening patterns according to a newly designed model therefore constitutes a new contribution to research in musicology. / Thesis (Ph.D. (Music))--North-West University, Potchefstroom Campus, 2010.

A robust computational framework is presented for the risk-neutral valuation of capital guarantees written on discretely-reallocated portfolios following the Constant Proportion Portfolio Insurance (CPPI) strategy. Aiming to address the (arguably more realistic) cases where analytical results are unavailable, this framework accommodates risky-asset jumps, volatility surfaces, borrowing restrictions, nonuniform reallocation schedules and autonomous CPPI floor trajectories. The two-asset state space representation developed herein facilitates visualising the CPPI strategy, which in turn provides insight into grid design and interpolation. It is demonstrated that given a deterministic process for the risk-free rate, the pricing problem can be cast as solving cascading systems of 1D partial integro-differential equations (PIDEs). This formulation’s stability and monotonicity are studied. In addition to making more sense financially, the limited borrowing variant of the CPPI strategy is found to be better suited than the classical (unlimited borrowing) counterpart for bounded-domain calculations. Consequently, it is demonstrated how the unlimited borrowing problem can be approximated by imposing an artificial borrowing limit. For implementation validation, analytical solutions to special cases are derived. Numerical tests are presented to demonstrate the versatility of this framework.

This Ph.D. thesis comprises of two parts. Part I develops a framework to provide insights into the understanding of several political macro-economy issues related to fiscal policy making. This framework links the overall macroeconomic performance to the public spending and borrowing decisions. The key feature of this framework is that it makes a distinction between productive (e.g. public investment) and non-productive public spending (e.g. popular spending). It is shown that a high level of political instability may lead to myopic and populist policies and may be associated with less favorable macroeconomic performance in terms of not only future output and inflation but also future popular spending. Part I also suggests an alternative channel for expansionary or Non-Keynesian fiscal contractions based on the productivity enhancing role of productive public spending. It is shown that if the incumbent government reduces popular (productive) spending rather than productive (popular) spending, then Non-Keynesian (Keynesian) effects are achieved. Furthermore, it is shown that the favorable effects of public investment depends positively on its quality in this framework. Moreover, the net effect of productive spending financed by borrowing on the next period&#039 / s macroeconomic performance depends on the benefits of productive spending relative to the costs of borrowing. Even under a capital borrowing rule higher public investment may yield unfavorable effects and also it may not necessarily prevent the strategic use of public investment, even though it prevents strategic debt accumulation. Part II investigates the effects of macroeconomic instability on capital accumulation and economic growth in the Turkish economy over the 1963-1999 period. Descriptive and econometric (time series) analyses suggest that macroeconomic instability not only deters capital accumulation and economic growth but it may also reverse the complementarity between public and private investment in the long-run.

The thesis is divided into three chapters.1) I study how monetary policy should be optimally designed when households show financial wealth heterogeneity.Main results: thanks to its ability to affect interest payments volatility, monetary policy has real effects even in a flexible-price cashless-limit environment; second, in a setup with nominal rigidities, price stability is no longer optimal. The extent of deviation from price stability depends on the initial level of debt dispersion.2) I assess the role of housing price movements in influencing the optimal design of monetary policy. Under the optimal simple rule, housing price movements should not be a separate target variable in addition to inflation. Furthermore, the welfare loss arising from targeting housing prices becomes quantitatively more significant the higher the degree of access to the credit market.3) I analyze the effects of fiscal policy in a currency area. Results: a public spending shock in one region increases private agents demand for imports and appreciates the terms of trade; second, a countercyclical fiscal rule can restore the Taylor principle, the uniqueness of the equilibrium and reduce macro-volatility.

Growing usage of smart and portable electronic devices demands embedded system designers to provide solutions with better performance and reduced power consumption. Due to the new development of IoT and embedded systems usage, not only power and performance of these devices but also security of them is becoming an important design constraint. In this work, a novel aggressive scaling based on timing speculation is proposed to overcome the drawbacks of traditional DVFS and provide security from power analysis attacks at the same time. Dynamic voltage and frequency scaling (DVFS) is proven to be the most suitable technique for power efficiency in processor designs. Due to its promising benefits, the technique is still getting researchers attention to trade off power and performance of modern processor designs. The issues of traditional DVFS are: 1) Due to its pre-calculated operating points, the system is not able to suit to modern process variations. 2) Since Process Voltage and Temperature (PVT) variations are not considered, large timing margins are added to guarantee a safe operation in the presence of variations. The research work presented here addresses these issues by employing aggressive scaling mechanisms to achieve more power savings with increased performance. This approach uses in-situ timing error monitoring and recovering mechanisms to reduce extra timing margins and to account for process variations. A novel timing error detection and correction mechanism, to achieve more power savings or high performance, is presented. This novel technique has also been shown to improve security of processors against differential power analysis attacks technique. Differential power analysis attacks can extract secret information from embedded systems without knowing much details about the internal architecture of the device. Simulated and experimental data show that the novel technique can provide a performance improvement of 24% or power savings of 44% while occupying less area and power overhead. Overall, the proposed aggressive scaling technique provides an improvement in power consumption and performance while increasing the security of processors from power analysis attacks.

In this master thesis, we compare three different types of funding alternatives from a Swedish municipality's point of view, with the main focus on analysing a Nikkei-linked loan. We do this by analysing the resulting interest rate and the expected exposures, taking collateral into consideration. We conclude, with certainty, that there are many alternatives for funding and that they each need to be analysed and compared on many levels to be able to make a correct decision as to which ones to choose. An important part of this is to consider the implications of the newest regulations and risk exposure, as it might greatly influence the final price for contracts. Between the cases that we considered, the SEK bond was the one with the lowest resulting spread, and the one which is the simplest considering the collateral involved. While other alternatives might be better depending on how profitable it is for the municipality to receive collateral, the SEK bond is the most transparent one and with least risk involved.

This research is a case study which sought to investigate the educational implication of code switching in a multilingual school in Matatiele. Since the dawn of democracy in South Africa, the language policy has sought to promote multilingualism and also honours the cultural diversity existing in this country. It is against this background that the study was conducted. The present study also sought to investigate the occurrences and nature of code switching in the classroom context. In South Africa, the Language in Education Policy prescribes that English as Language of Learning and Teaching be practiced from Grade 4 upwards, alongside home languages. At school, it seems that teachers are not empowered regarding the approach towards code switching. The study investigates whether the use of code switching in a classroom context is in line with the Language in Education Policy. It also looks at the implications of trilingual instruction (which is the use of three languages) in content subjects in the classroom. Functions of code switching were examined as well. This empirical research study used qualitative research methods. Qualitative research provided the study with insight into code switching in the educational context. This study encompassed specific techniques for collecting data, mainly observations. Notes were also of some assistance and were jotted down while observation was underway to supplement what could not be captured by the video, such as emotion and feelings. The study concluded that code switching plays a significant role in an English as Second Language (ESL) classroom context. / Linguistics and Modern Languages / M. A. (Linguistics)

A presente dissertação objetiva analisar o fenômeno conhecido como empréstimo linguístico. Para tanto, adotei como referencial teórico a Teoria da Variação em Terminologia, proposta por Faulstich (1999). Foi analisado um léxico especializado, mais precisamente o do Comércio Exterior. O corpus, composto de 37 termos descritores e 195 ocorrências, foi formado por termos extraídos de um site governamental (http://www.receita.fazenda.gov.br/Legislacao/LegisAssunto/ComExt.htm). Os resultados da análise mostraram que o tipo de empréstimo mais produtivo encontrado no corpus é o híbrido, seguido do empréstimo que, depois de adaptado, se recompõe e gera uma Unidade Terminológica Complexa (UTC), híbrida ou vernacular, e do empréstimo que mantém a forma tal qual no inglês. Também tiveram recorrência importante no corpus empréstimos que geram um decalque no Português do Brasil (PB) e, a título de reforço, mantêm o termo em inglês, como um aposto explicativo. Em menor número, estão: a) os empréstimos que mantêm a forma de origem, mas apresentam evidências de registro de que ainda são estrangeiros; b) os empréstimos que mantêm a forma do inglês e geram uma forma adaptada às convenções ortográficas do PB; c) os empréstimos que mantêm a forma tal qual no inglês e geram uma forma adaptada às regras morfofonêmicas do PB; e d) empréstimos que abandonam a forma de origem em favor de um decalque no PB. De forma geral, esta pesquisa visou a contribuir para o desenvolvimento dos estudos socioterminológicos e fornecer auxílio prático aos operadores do léxico do Comércio Exterior com base na análise dos empréstimos linguísticos oriundos da língua inglesa e de seu estatuto variante. / This thesis presents an analysis of linguistic borrowing. Applying the theory of variation in terminology proposed by Faulstich (1999), it focuses on a specialized lexicon in foreign trade. The corpus consisted of 37 lexical items, with 195 occurrences, sourced from a Brazilian governmental site (http://www.receita.fazenda.gov.br/Legislacao/LegisAssunto/ComExt.htm). The analytical results showed that the most common form of loanword in the corpus was hybrid, followed by loanwords that undergo adaptation and then are restructured to form a hybrid or vernacular Complex Terminological Unit. An important number of occurrences also involved calques into Brazilian Portuguese (BP) with the original English following in parentheses as way of explanation. Other, less frequent variations included: a) loanwords consisting of the original English along with an indication that they are still foreign words; b) loanwords that maintain the original English while producing a form adapted to the conventions of BP orthography; c) loanwords that maintain the original English while producing a form adapted to the morphophonemic rules of BP; and d) loanwords that wholly replace the original English with a BP calque. Based on an analysis of linguistic borrowings from English and their variations, this research is intended both as a contribution towards the development of socioterminological studies and as a practical aid for users of the foreign trade lexicon.

A presente dissertação objetiva analisar o fenômeno conhecido como empréstimo linguístico. Para tanto, adotei como referencial teórico a Teoria da Variação em Terminologia, proposta por Faulstich (1999). Foi analisado um léxico especializado, mais precisamente o do Comércio Exterior. O corpus, composto de 37 termos descritores e 195 ocorrências, foi formado por termos extraídos de um site governamental (http://www.receita.fazenda.gov.br/Legislacao/LegisAssunto/ComExt.htm). Os resultados da análise mostraram que o tipo de empréstimo mais produtivo encontrado no corpus é o híbrido, seguido do empréstimo que, depois de adaptado, se recompõe e gera uma Unidade Terminológica Complexa (UTC), híbrida ou vernacular, e do empréstimo que mantém a forma tal qual no inglês. Também tiveram recorrência importante no corpus empréstimos que geram um decalque no Português do Brasil (PB) e, a título de reforço, mantêm o termo em inglês, como um aposto explicativo. Em menor número, estão: a) os empréstimos que mantêm a forma de origem, mas apresentam evidências de registro de que ainda são estrangeiros; b) os empréstimos que mantêm a forma do inglês e geram uma forma adaptada às convenções ortográficas do PB; c) os empréstimos que mantêm a forma tal qual no inglês e geram uma forma adaptada às regras morfofonêmicas do PB; e d) empréstimos que abandonam a forma de origem em favor de um decalque no PB. De forma geral, esta pesquisa visou a contribuir para o desenvolvimento dos estudos socioterminológicos e fornecer auxílio prático aos operadores do léxico do Comércio Exterior com base na análise dos empréstimos linguísticos oriundos da língua inglesa e de seu estatuto variante. / This thesis presents an analysis of linguistic borrowing. Applying the theory of variation in terminology proposed by Faulstich (1999), it focuses on a specialized lexicon in foreign trade. The corpus consisted of 37 lexical items, with 195 occurrences, sourced from a Brazilian governmental site (http://www.receita.fazenda.gov.br/Legislacao/LegisAssunto/ComExt.htm). The analytical results showed that the most common form of loanword in the corpus was hybrid, followed by loanwords that undergo adaptation and then are restructured to form a hybrid or vernacular Complex Terminological Unit. An important number of occurrences also involved calques into Brazilian Portuguese (BP) with the original English following in parentheses as way of explanation. Other, less frequent variations included: a) loanwords consisting of the original English along with an indication that they are still foreign words; b) loanwords that maintain the original English while producing a form adapted to the conventions of BP orthography; c) loanwords that maintain the original English while producing a form adapted to the morphophonemic rules of BP; and d) loanwords that wholly replace the original English with a BP calque. Based on an analysis of linguistic borrowings from English and their variations, this research is intended both as a contribution towards the development of socioterminological studies and as a practical aid for users of the foreign trade lexicon.