975 research outputs found

    Music for classical guitar by South African composers : a historical survey, notes on selected works and a general catalogue

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    Includes abstract.Includes bibliographical references (leaves 296-309).This is the first comprehensive investigation of music for, or including, the classical guitar by South African composers. The focus of this research has been, firstly, to uncover as much of the repertoire as possible, and, secondly, to collate, study, catalogue and report on the information. A brief historical survey of the guitar in South Africa provides the context within which this study was conducted. The primary sources of quantitative data collection were through the archival catalogues of the South African Music Rights Organisation and through personal contact with guitarists, composers and guitar teachers. Other sources consulted were publishers, broadcasting corporations, recording companies, libraries and the internet. The body of the dissertation comprises biographical sketches, background notes, analyses and technical notes on 17 selected solo and chamber works dating from 1947 to 2007 by some of South Africa's most prominent composers and guitaristcomposers. The repertoire ranges in style from the traditional and ethnically inspired to the experimental and abstract. As this is an empirical survey, each selected entry includes details on instrumentation, duration, level of difficulty, number of pages, scordatura, commissions or requests, sources or publishers, premières and recordings. A biography of each composer is provided as well as background notes which offer an overview of the selected work. The notes discuss historical, cultural, musical and extra-musical influences, and frequently include references to interview material. The commentaries on the selected works, with musical examples, include an analytical component describing structure, form, stylistic and compositional elements, while the technical observations include performance suggestions and a grading for each work

    Chromium- and copper-induced inhibition of photosynthesis in Euglena gracilis analysed on the single-cell level by fluorescence kinetic microscopy

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    Here, we investigated effects of copper (Cu) and chromium (Cr) toxicity on two contrasting strains of Euglena gracilis, with and without chloroplasts, grown in culture media promoting either phototrophic or heterotrophic growth. This led to insights into Cr/Cu toxicity mechanisms and into the regulation of phototrophic vs heterotrophic metabolism. Our data strongly suggest that in Cu2+ and Cr6+ stressed Euglena photosynthesis is the primary target of damage. In the applied light conditions, this was mainly damage to the photosystem II reaction centre, as shown by single-cell measurements of photochemical fluorescence quenching. Respiration and photosynthetic dark reactions were less sensitive. The malfunctioning photosynthesis enhanced production of reactive oxygen species (mainly superoxide), leading to elevated amounts of carotenoid degradation products. At higher metal concentrations in chloroplast-containing cells, but not white cells, this oxidative stress resulted in increased respiratory oxygen uptake, likely by damage to mitochondria. During growth in nutrient solution promoting heterotrophic metabolism, the cells were able to repair the metal-induced damage to photosynthesis, moderating the inhibition of photochemistry. Growth in medium forcing the cells into photosynthesis increased the investment in photosynthetic pigments. Comparison of the two Euglena strains surprisingly showed that the previously metal-resistant strain lost this resistance during culture. © 2009 New Phytologist.Fil: Rocchetta, Iara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Universität Konstanz; AlemaniaFil: Küpper, Hendrik. Universität Konstanz; Alemania. University of South Bohemia; República Chec

    The Christian Message in a Postmodern World: a critical re-appropriation of Hendrik Kraemer's theology of religions

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    This thesis is a critical re-appropriation of Hendrik Kraemer's theology of religions. Part I introduces theology of religions through the now familiar threefold typology: Kari Earth represents 'exclusivism,' Kari Rahner, 'inclusivism,' and John Hick, 'pluralism' (Chapter 1). It then argues that the typology implicitly represents non-pluralist approaches as theologically deficient and ethically insensitive while masking problems in pluralist positions (Chapter 2). It thus releases Kraemer from the typology and from the more emotive charges directed against 'exclusivism.' Part II chronologically and thematically surveys Kraemer's theology of religions, describing his missiological and theological contexts (Chapter 3) and summarising his major works (Chapter 4). The crux of the argument comes in Part III. First, a survey of the contemporary philosophical climate is offered through a summary and critique of Jean-Frangois Lyotard's interpretation of the postmodern condition Subsequently, three theological responses are assessed with Mark C. Taylor's a/theology and John Milbank's theology presented as avoidable extremes while the work of Hans Frei and George Lindbeck is offered as a mediating position which is dubbed 'postmodern orthodoxy' (Chapter 5). Second, after reviewing key themes in Kraemer's position, theological and phenomenological criticisms are outlined and evaluated. Though they do not seriously threaten the position, these criticisms prohibit extreme interpretations of, and lead to slight modifications in, Kraemer's work (Chapter 6). Finally, when re-read through the lenses of postmodern orthodoxy, Kraemer's thought is shown to offer to contemporary theology of religions avenues of theological creativity which are nevertheless faithful to the Christian tradition (Chapter 7). The thesis concludes that Hendrik Kraemer's theology of religions is worthy of critical re- appropriation

    An annotated catalogue of selected works for clarinet by South African composers

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    The dissertation consists of an annotated catalogue of nineteen selected works for clarinet by South African composers. These are presented in chronological order, based on the year of composition. A short biographyof the composer is given before the work is discussed. Of the analysed works, all those for solo clarinet or for clarinet and piano have been graded. A thesis of a similar nature, written in 1989 by L.A. Hartshorne, entitled ""The Compositions for Clarinet by South African Composers"", contains details of twenty-four works written between 1928 and circa 1981. The majority of the compositions analysed in the current dissertation were written from around 1981 onwards, and to some extent, therefore, this research could be seen as complementary to the information contained in the aforementioned thesis. An addendum lists all the South African works featuring solo clarinet that the author was able to trace. These include solo works, cham ber works for up to nineteen instruments and concerto-type works with strings or orchestra

    Portret van twee negentiende-eeuwse meesters: Leven en werk van Hendrik Jan en Cornelis Hendrik van Ameron

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    Leven en werk van de kunstschilder Hendrik Jan (1776-1833) en diens zoon Cornelis Hendrik van Amerom (1804-1874) zijn nauw verbonden met het kunstonderwijs in Arnhem en Leiden. De vroegste geschiedenis van de Arnhemse Kunstakademie is niet te denken zonder de invloed van Hendrikjan van Amerom. Als "eerste tekenmeester" bepaalde hij dertig jaar lang het onderwijs aan deze instelling. Zijn zoon, Cornelis Hendrik, speelde een belangrijke rol in het tekenonderricht te Leiden, waar hij les gaf aan diverse kostscholen voor jongens en meisjes uit de "betere standen". Cornelis Hendrik van Amerom kan tot de vroegste fotografen in Nederland worden gerekend. Tevens mag hij worden beschouwd als ontdekker van het Gelderse landschap, dat inspiratiebron werd voor vele kunstenaars. Hiermee is hij een directe voorloper van de schilders van de "Oosterbeekse Schildersbent" en de "Haagse School". Van uitzonderlijke (kunst)historische betekenis is zijn "Memorie-boekje". In dit tot nu toe onopgemerkt gebleven ego-document maakte hij belangrijke aantekeningen over zijn familie en zijn werk als kunstenaar en fotograaf. Het "Memorie-boekje" wordt in deze uitgave, met een geïllustreerde oeuvrecatalogus van beide kunstenaars, integraal gepubliceerd. Uitgave van Stichting Leids Kunsthistorisch Jaarboek

    Distinct Imaging Features of Peripheral Nerve Sheath Tumours in NF2 ‐Related Schwannomatosis: A Case Report

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    Introduction Peripheral nerve sheath tumours (PNST) are an important feature of the NF2 ‐related schwannomatosis. These constitute primarily schwannomas which are characterized as nodular, solitary benign tumours of single fascicles. We here describe a pronounced, extensive, multifascicular enlargement of the right ulnar nerve and bilateral brachial plexus in a teenage patient with NF2 ‐related schwannomatosis. Neither their imaging nor the clinical characterization were consistent with classic schwannomas. Methods Within a multimodal work‐up, detailed and standardized high‐resolution nerve ultrasound was correlated to clinical, electroneurographic, and MRI findings. Follow‐up data over 2 years were provided. Results The clinical presentation of a slowly progressive, predominantly motor axonal neuropathy of the right ulnar nerve prompted a comprehensive nerve ultrasound examination, initiated by this clinically and neurophysiologically defined “sentinel” finding. Ultrasound imaging revealed an extensive, fusiform enlargement of the right ulnar nerve, as well as bilateral involvement of the brachial plexus, the latter without corresponding clinical symptoms. Subsequent genetic analysis confirmed the diagnosis of NF2‐related schwannomatosis. Discussion Signs of a mononeuropathy are a frequent manifestation of NF2 ‐related schwannomatosis in childhood. The here presented nerve imaging characteristics, however, did not correspond to classic schwannomas. The fusiform, long‐extended, multifascicular enlargement with mixed hyper‐ and hypoechogenic components on ultrasound, as well as markedly T2‐hyperintense and T1‐isointense appearance with diffuse gadolinium enhancement on MRI, is consistent with perineurioma. These mesenchymal nerve tumours have rarely been described in NF2 ‐related schwannomatosis. This association is further supported by the present case and highlights the necessity for additional peripheral nerve imaging studies in NF2‐related schwannomatosis, including the application of high‐resolution ultrasound.Universitätsklinikum Tübingen https://doi.org/10.13039/10001294

    Unravelling Drivers of Morphological Change: A Case Study on the Prins Hendrik Sand Dike

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    Flood defense will have to be strengthened all over the world as sea level rise poses great challenges for the safety of coastal settlements. Strengthening traditional hard flood defenses is becoming increasingly more difficult due to limited space in the coastal zone and large costs inflicted with renovation. Adaptive ‘soft solutions’ pose an alternative as they make use of natural processes that are able to adapt to changing boundary conditions. The Prins Hendrik Sand Dike is a pilot project of such a soft solution placed in front of an existing hard sea dike. The Prins Hendrik Sand Dike is the subject of this research.This research strives to identify the role of waves, currents, and water levels on morphological development of the Prins Hendrik Sand Dike. Which requires an identification of the morphological development during the 3.5 years of service lifetime. This is followed by a characterization of the forcing climate based on measured on-site data. This knowledge is used to hindcast the full forcing climate during the PHSD lifetime and calculate morphological development. Lastly, a comparison of calculated and observed morphological development reveals suitability of engineering formulae on low-energy beaches.Results indicate the spit head develops at a faster rate than predicted in model studies. In addition, constant erosion in the form of coastline retreat is observed in a section that serves as primary sea defense. These findings hamper successful development of habitat and possibly decrease the longevity of the sea defense if maintenance is not performed. Furthermore, waves have been determined to be the dominant forcing mechanism resulting in sediment transport and morphological development. In addition, systematic water level changes that occur under specific wave conditions are identified causing increased Northeastward transport of sediment. These findings likely explain discrepancies between the previously modelled and observed morphological development. Implications of this research contribute to an understanding of the interconnected nature of forcing scenarios at low-energy beaches and can be used to improve modelling efforts of low-energy beaches. Furthermore, it provides a basis for Hoogheemraadschap Noorderkwartier to make decisions on maintenance activities.Prins Hendrik Sand DikeCivil Engineering | Structural Engineering | Hydraulic Structure

    Wat eene moeder lijden kan door Hendrik Conscience in het Pools. Vertaling of adaptatie?

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    Wat eene moeder lijden kan door Hendrik Conscience in het Pools. Vertaling of adaptatie? In this article the author discusses the Polish translation of Wat eene moeder lijden kan What a mother has to suffer by Hendrik Conscience, published in 1856. Due to a series of changes in the Polish translation the Polish text became different from its original. The question is how important those differences are and if they have a significant influence on the meaning of the text. The author’s assumption is that the Polish translator Franciszek Salezy Dmochowski tried to adjust the text to local, Polish circumstances, according to ideas about translation which were widespread in the 19th century. As a result, the process of ‘localization’ played a major role in the creation of Cierpienia matki, the Polish translation of Wat eene moeder lijden kan.  Wat eene moeder lijden kan door Hendrik Conscience in het Pools. Vertaling of adaptatie? In this article the author discusses the Polish translation of Wat eene moeder lijden kan What a mother has to suffer by Hendrik Conscience, published in 1856. Due to a series of changes in the Polish translation the Polish text became different from its original. The question is how important those differences are and if they have a significant influence on the meaning of the text. The author’s assumption is that the Polish translator Franciszek Salezy Dmochowski tried to adjust the text to local, Polish circumstances, according to ideas about translation which were widespread in the 19th century. As a result, the process of ‘localization’ played a major role in the creation of Cierpienia matki, the Polish translation of Wat eene moeder lijden kan.Wat eene moeder lijden kan door Hendrik Conscience in het Pools. Vertaling of adaptatie? In this article the author discusses the Polish translation of Wat eene moeder lijden kan What a mother has to suffer by Hendrik Conscience, published in 1856. Due to a series of changes in the Polish translation the Polish text became different from its original. The question is how important those differences are and if they have a significant influence on the meaning of the text. The author’s assumption is that the Polish translator Franciszek Salezy Dmochowski tried to adjust the text to local, Polish circumstances, according to ideas about translation which were widespread in the 19th century. As a result, the process of ‘localization’ played a major role in the creation of Cierpienia matki, the Polish translation of Wat eene moeder lijden kan

    SERFONTEIN, Jan Hendrik Philippus Inventory of documents

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    COVERAGE 1962-1970; 139 Files; 2.00 metrePrivate papers of J.H.P. Serfontein, journalist Sunday Times, author of Brotherhood of Power, 1979. Included are notes on "Die Verkrampte aanslag" (manuscript)

    Die Generation Oslo im Westjordanland

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    The past fifty years have seen far-reaching changes in Palestinian society in the West Bank. The Israeli occupation which began in 1967, the political mobilization of the 1970s and 1980s, and the so-called peace process in the 1990s went together with deep social transformations, which not only changed the dynamics of the Israeli-Palestinian conflict, but also altered the figurations and conflict lines between different social groups within Palestinian society. This book is a sociological study of these transformation processes, based on a combination of Norbert Elias’ figurational sociology, social-constructivist biographical research, and Karl Mannheim’s sociology of knowledge and generational sociology. In addition to conflicts and tensions between inhabitants of the old refugee camps and the (new) urban middle class in the West Bank, the author focuses in particular on a latent Palestinian generational conflict: it is clear that members of the ‘Oslo Generation’ – meaning those who grew up during the Oslo peace process in the 1990s – have fewer power and life chances, and in particular fewer opportunities for meaning, than their predecessors in the generation of fighters and activists of the 1970s and 1980s
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