• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 9
  • 9
  • 3
  • 2
  • 1
  • Tagged with
  • 31
  • 12
  • 7
  • 6
  • 6
  • 5
  • 5
  • 5
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Exploring the Neural Correlates of Auditory Awareness / Utforskning av neurala korrelat inom auditivt medvetande

Gerdfeldter, Billy January 2018 (has links)
Neural correlates of consciousness (NCCs) represent the physiological processes related to consciousness and awareness. Consciousness is theorized as a recurrent process of integration between separate but specialized brain areas. Previous research has used electroencephalography (EEG) to locate NCCs of sensory awareness in vision through event-related potentials (ERPs). Two ERP components thought to represent visual awareness are the visual awareness negativity (VAN) and late positivity (LP). VAN and LP have been extensively studied, yet little research has been conducted in other sensory modalities. In this study, the presence of an auditory awareness negativity (AAN) and associated LP is investigated in 23 subjects using EEG. To avoid false positives in data analysis, two research hypotheses were preregistered. The results indicate that auditory LP does occur, but that AAN does not, in hypothesized intervals. However, the data suggest that AAN may occur at a later interval. Possible attributes of the later interval are discussed. In sum, the data provide results consistent with recurrent theories of sensory awareness.
12

Redu??o da prote?na bruta e suplementa??o de amino?cidos das dietas na produ??o de frangos de corte / Reduction of crude protein and amino acid supplementation of diets in the production of broilers

Carvalho, H?lio Beirigo 31 August 2012 (has links)
Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-12-22T16:00:42Z No. of bitstreams: 2 helio_beirigo_carvalho.pdf: 726064 bytes, checksum: 56c4f507b6b622e8be789dca02e2dfd2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-12-22T16:52:44Z (GMT) No. of bitstreams: 2 helio_beirigo_carvalho.pdf: 726064 bytes, checksum: 56c4f507b6b622e8be789dca02e2dfd2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2015-12-22T16:52:44Z (GMT). No. of bitstreams: 2 helio_beirigo_carvalho.pdf: 726064 bytes, checksum: 56c4f507b6b622e8be789dca02e2dfd2 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2012 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Este trabalho foi realizado para avaliar o efeito da formula??o de dietas que consideram o atendimento das exig?ncias de prote?na bruta, dietas com redu??o dos valores de prote?na bruta e atendimento das exig?ncias de amino?cidos digest?veis e dietas com atendimento das exig?ncias de amino?cidos sobre os par?metros de desempenho, consumo de energia, prote?na, amino?cidos, rendimento de carca?a e cortes, empenamento e custos na produ??o de frangos de corte nas diferentes fases de cria??o. Foram realizados cinco experimentos, conduzidos no setor de Avicultura da UFVJM, no Campus JK, em Diamantina ? MG. As aves usadas nos experimentos foram todas machos, da linhagem Cobb 500. No total, foram usadas 2.430 aves e consideradas as fases de 1 a 7, 8 a 21, 22 a 35, 36 a 42 e 42 a 49 dias de idade. Em todos os experimentos, as aves foram distribu?das segundo um delineamento experimental inteiramente casualizado, com seis tratamentos (T1 ? Dieta-controle formulada de acordo com recomenda??es das Tabelas Brasileiras para aves e su?nos (2011) para atender prote?na bruta e amino?cidos digest?veis; T2 ? Dieta com 5% de redu??o da prote?na bruta da dieta-controle; T3 - Dieta com 10% de redu??o da prote?na bruta da dieta-controle; T4 - Dieta com 15% de redu??o da prote?na bruta da dieta-controle; T5 - Dieta formulada para atender as exig?ncias de amino?cidos digest?veis da dieta-controle com o valor da prote?na bruta livre; T6 - Dieta formulada para atender o valor da prote?na bruta da dieta-controle deixando livre o atendimento dos amino?cidos digest?veis. Na fase de 42 a 49 dias foram utilizadas tr?s repeti??es, mas nas demais fases foram usadas quatro repeti??es por tratamento. Com rela??o ao desempenho das aves, foi observado que, com o atendimento das exig?ncias de amino?cidos digest?veis, ? poss?vel reduzir em at? 10% os valores da prote?na bruta nas recomenda??es nutricionais feitas por Rostagno et al. (2011) e, dessa forma, o desempenho das aves n?o ? afetado. No entanto, dietas formuladas para atender apenas as exig?ncias de amino?cidos digest?veis, pioram o desempenho das aves. De modo geral, n?o houve diferen?as no consumo de energia; por?m, o consumo de prote?na e de amino?cidos diferiu ? medida em que se alterou os n?veis de prote?na bruta e amino?cidos digest?veis das dietas. A redu??o dos valores de prote?na bruta das dietas em at? 15% n?o afetou o rendimento de carca?a e cortes, mas as dietas formuladas para atender apenas ?s exig?ncias de amino?cidos digest?veis causaram pioras no rendimento de carca?a e carne do peito das aves. O empenamento das aves n?o foi afetado pelas dietas avaliadas. As an?lises de custos realizadas mostraram que dietas formuladas para o atendimento da prote?na bruta apresentam menor custo; por?m, at? os 35 dias, a redu??o de at? 10% dos valores da prote?na bruta com suplementa??o de amino?cidos digest?veis melhoram o custo do ganho em peso das aves. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT This study was conducted to evaluate the effect of diet formulation considering the attendance of crude protein, diets with reduced crude protein values and requirements of digestible amino acids and diets to meet the amino acid requirements on parameters performance, energy consumption, protein, amino acids, carcass yield and cuts, feathering and costs in the production of broiler chickens at various stages of creation. We conducted five experiments, conducted in the experimental aviary of UFVJM on campus in JK Diamantina - MG. The birds used in the experiments were all male, the strain Cobb 500. In total 2430 birds were used and considered stages 1-7, 8-21, 22-35, 36-42 and 42-49 days of age. In all experiments, the birds were distributed according to a completely randomized design with six treatments (T1 - diet control and formulated in accordance with recommendations of Rostagno et al. (2011) to meet crude protein and digestible amino acids, T2 - diet 5% reduction in crude protein diet control, T3 - diet with 10% reduction of crude protein in the control diet; T4 - diet with 15% reduction of crude protein in the control diet; T5 - diet formulated to meet the requirements the digestible amino acids of diet control with the amount of crude protein free; T6 - diet formulated to meet the amount of crude protein diet control with the amount of digestible amino acids free). In the period from 42 to 49 days were three replicates, but in the other phases were used four replicates per treatment. The performance of the birds, it was observed that, with the assistance of digestible amino acid requirements can be reduced up to 10% of the crude protein nutritional recommendations made by Rostagno et al. (2011), that performance is not affected. However, diets formulated to meet only the requirements of digestible amino acids, decrease the performance of the birds. In general, no differences in energy consumption, however, the consumption of protein and amino acids differ as altered levels of crude protein and digestible amino acid diets. The decreased levels of dietary crude protein up to 15% did not affect carcass yield and cuts, but the diet formulated to meet only the requirements of digestible amino acids, caused decrease in carcass and breast meat of birds. The feathering of the birds was not affected by the diets evaluated. The cost analysis performed showed that diets formulated to meet crude protein have a lower cost, however, up to 35 days, a reduction of up to 10% of the crude protein supplementation with digestible amino acids, improve the cost of weight gain birds.
13

Perceptions regarding the role of social support in the academic achievement of adolescents exposed to violence / Lelanie Judeel

Judeel, Lelanie January 2014 (has links)
The purpose of this study was to explore the perceptions of adolescents, who have been exposed to violence, regarding the role of social support in their academic achievement. A qualitative, collective, within-site case study design was applied to obtain baseline data. The data was gathered through consecutive in-depth individual interviews with two male and six female adolescent learners (between 15 and 17 years of age) in a secondary school in Gauteng. Collages were furthermore used to assist participants with expressing their perceptions on the role that social support played in their academic achievement, despite being exposed to violence in their communities. The study was mainly informed by Bronfenbrenner’s bio-ecological systems theory, but in order to better understand the adolescent as an individual who functions within the ecological systems theory, Erikson’s psycho-social development theory as well as the theory of social support were integrated to understand this complex period of development. Interview data were analysed thematically, whilst shared analysis were utilised to give meaning to the visual data presented in the collages. The results indicate that encouragement to achieve, the provision of care and support to deal with problems in a proactive manner and enabling relationships with significant others facilitated academic achievement despite exposure to violence. Furthermore, positive self-talk, self-discipline and coping behaviours were identified as self-supportive behaviour that was perceived as enabling adolescents to achieve academically. The study indicates that adolescents who achieve academically despite exposure to violence, perceive social support as playing a significant role in the facilitation of academic achievement in these contexts of adversity. It is therefore recommended that significant others in the lives of adolescents should be informed about the important role that their supportive interactions play in the adolescent’s ability to maintain academic achievement. Further research could explore the viability of social support interventions in assisting adolescent learners to achieve their full academic potential, despite exposure to violence. / MA (Research Psychology), North-West University, Potchefstroom Campus, 2014
14

Perceptions regarding the role of social support in the academic achievement of adolescents exposed to violence / Lelanie Judeel

Judeel, Lelanie January 2014 (has links)
The purpose of this study was to explore the perceptions of adolescents, who have been exposed to violence, regarding the role of social support in their academic achievement. A qualitative, collective, within-site case study design was applied to obtain baseline data. The data was gathered through consecutive in-depth individual interviews with two male and six female adolescent learners (between 15 and 17 years of age) in a secondary school in Gauteng. Collages were furthermore used to assist participants with expressing their perceptions on the role that social support played in their academic achievement, despite being exposed to violence in their communities. The study was mainly informed by Bronfenbrenner’s bio-ecological systems theory, but in order to better understand the adolescent as an individual who functions within the ecological systems theory, Erikson’s psycho-social development theory as well as the theory of social support were integrated to understand this complex period of development. Interview data were analysed thematically, whilst shared analysis were utilised to give meaning to the visual data presented in the collages. The results indicate that encouragement to achieve, the provision of care and support to deal with problems in a proactive manner and enabling relationships with significant others facilitated academic achievement despite exposure to violence. Furthermore, positive self-talk, self-discipline and coping behaviours were identified as self-supportive behaviour that was perceived as enabling adolescents to achieve academically. The study indicates that adolescents who achieve academically despite exposure to violence, perceive social support as playing a significant role in the facilitation of academic achievement in these contexts of adversity. It is therefore recommended that significant others in the lives of adolescents should be informed about the important role that their supportive interactions play in the adolescent’s ability to maintain academic achievement. Further research could explore the viability of social support interventions in assisting adolescent learners to achieve their full academic potential, despite exposure to violence. / MA (Research Psychology), North-West University, Potchefstroom Campus, 2014
15

Die Afrikaanse jeugteks en die New Age : die aanvlerking van 'n nuwe ideologie in Fransi Phillips se Die wilde kind, Theresa se droom en 'n Baie lang brief aan Rolf

Vogel, Lina 28 August 2012 (has links)
M.A. / The problem setting, as a basis for this study, is the application of central New Age ideas contained in three op Phillips' texts which are presented as juvenile texts. It was necessary to ascertain to which extent the application of New Age perceptions moved preconceived boundaries and thus caused a change in observation and consciousness. It was further imperative to analyse the manner in which Phillips integrated viewpoints of the New Age in order to indicate the shift of boundaries and the change in consciousness coupled herewith. The most important standpoints of the New Age were theoretically explored during this study. The conclusion was drawn that the focus within the New Age is on movement of boundaries and change in consciousness. Holism was indicated as the core around which the New Age movement centres. It was also found that Phillips applied the holistic train of thought in her texts in order to portray the relationship between antropos and cosmos, as well as to establish transformative relationships. In view of the aforementioned goals, the main focal point of the study was the holistic way in which the most central New Age ideas were incorporated into Phillips' texts. The idea-contents of the three texts, as well as Phillips' art of writing can be proffered as transformative holistic.
16

The pamphlet that woke a nation

Sterk, John 10 April 2008 (has links)
No description available.
17

Internasionale reisliteratuur oor Kenia met spesifieke verwysing na die tydperk sedert onafhanklikheid in 1963

Marais, Johannes Lodewyk January 2013 (has links)
Hierdie studie ondersoek die aard van en opvattings oor reisliteratuur oor Kenia sedert 1963. Dit is ’n faset van die literatuur oor Kenia waaroor daar tot dusver nog nie indringend navorsing gedoen en besin is nie. Reisliteratuur het ’n lang geskiedenis in Afrika. ’n Aantal boeke is gedurende die negentiende eeu oor Afrika geskryf en Kenia is nie afgeskeep nie. Onder die skrywers tel Johann Ludwig Krapf, Joseph Thomson, graaf Samuel Teleki von Szek en Luitenant Ludwig von Höhnel. Van die geografiese kenmerke van die land wat indruk op hulle gemaak het, was die sneeubedekte Berg Kenia, die mere en die Groot Skeurvallei. Gedurende die twintigste eeu was daar ’n tyd toe skrywers van mening was dat vinniger vervoermiddels en massatoerisme ’n negatiewe invloed op individuele toerisme en die sogenaamde ideale omstandighede vir die skryf van reisliteratuur sou hê. Onlangse studies beklemtoon egter die hernieude belangstelling in reisliteratuur. Buitelandse kennis oor Kenia word aangevul deur reisliteratuur, hoewel dit ook ’n genre met sy eie reëls en geskiedenis is wat insae in die skrywers, uitgewers en lesers van die genre bied. Sedert 1963 is verskillende kategorieë reisliteratuur oor Kenia gepubliseer. Bekende skrywers wat Kenia besoek het en oor hulle ervarings geskryf het, sluit in Bill Bryson, Alberto Moravia, Shiva Naipaul, Paul Theroux en Wilfred Thesiger. ’n Prominente figuur in die kader van reisliteratuur is die plaaslik gebore fotojoernalis Mohamed Amin, wat die Camerapix-fotografie- en uitgewersagentskap begin het. Kenia se eks-Britse koloniale literatuur is deel van die postkoloniale era. Dit is egter nie waar dat die meeste van die tekste deel van die postkoloniale diskoers is nie. Aangesien al die boeke buite Kenia ontstaan en gepubliseer is, veral in die Weste, weerspieël die literatuur verskillende (nie-inheemse) perspektiewe van “die ander” asook verskillende soorte sosiopolitieke invloede. Deur sowel die hulpmiddels van die geskiedenis as die literatuurteorie te gebruik, is dit moontlik om die tekste beter te verstaan. In die postmoderne era is navorsing uit meer as een perspektief van besondere waarde. Reisliteratuur oor Kenia sedert 1963 is nie deur professionele historici geskryf nie en bewys dat verskeie mense tot die hibridiese dissipline van die geskiedenis kan bydra. Al hierdie tekste is gepubliseer en beklemtoon die rol van die gepubliseerde woord. Die tekste is in verskeie kategorieë reisliteratuur in een van die Europese tale, en nie in Kiswahili of een van Kenia se inheemse tale nie, geskryf. Die boeke bevestig onder meer die belangrikheid van die Swahili-geskiedenis, die bou van die Uganda Railway, die land se onafhanklikwording in 1963, die rol van presidente Jomo Kenyatta en Daniel arap Moi en die menslike nood in Kenia. Die geskiedenis van Kenia kan nie verstaan word sonder kennis van die land se geografie en natuurlewe nie, want die kenmerke was dikwels ’n uitdaging vir die mense en het allerlei soorte oorlewingstrategieë geverg. Die landskap trek ook baie besoekers na die land toe. / Thesis (DPhil)--University of Pretoria, 2013. / gm2013 / Historical and Heritage Studies / Unrestricted
18

Aldo van Eyck: le Musée imaginaire. La casa de Aldo y Hannie van Eyck en Loenen aan de Vecht

Campos Uribe, Alejandro 05 November 2018 (has links)
En 1964, tras más de 20 años viviendo en Amsterdam con su familia, Aldo van Eyck se traslada a Loenen aan de Vecht. Meses antes había adquirido una construcción modesta, de unos 200 metros cuadrados repartidos en dos plantas y un desván, construida en el siglo XVII y remodelada en el XVIII. La suya será la tercera transformación de un edificio, protegido actualmente como monumento, para convertirlo en una vivienda en la que, junto a Hannie, vivió hasta 1999. La casa de Loenen ha permanecido hasta hoy inédita y sin publicar, como el único proyecto de Van Eyck ocupado por él mismo como proceso permanente durante 35 años: una casa que no es más que una casa. Esta tesis toma el proyecto como objeto de estudio, intentando fijar la casa como casa antes de su desaparición y simultáneamente abrir la casa como libro publicado para sucesivas lecturas e interpretaciones. Esto significa que el trabajo resulta en una suma de tres esfuerzos. El primero que documenta, levanta, cataloga, fotografía, graba y archiva la materia física que conforma la casa para poner todo el material a disposición del que quiera visitarla virtualmente. El segundo que entrevista, conversa, escucha, comprende a sus habitantes y sus preocupaciones para recoger la casa que aún queda, comprendiendo la importancia de lo cotidiano en la reconstrucción del hogar. El tercero que lanza una interpretación sobre el material elaborado, que lo ordena según una mirada intencional, que vuelve a proyectar la casa para descubrir el proceso de generación de la obra, para hacerla legible al público. En definitiva, la investigación propone una larga estancia en interior de la casa de Loenen aan de Vecht. A través de ella, de la colección de arte vernáculo, la biblioteca, las maquetas, las pinturas de vanguardia, las fotografías del archivo; la tesis se asoma al museo imaginario de Aldo van Eyck. Al fin y al cabo, la historia de un hombre es un largo rodeo alrededor de su casa. / In 1964, after more than 20 years living in Amsterdam with his family, Aldo van Eyck moved to Loenen aan de Vecht. Months before they had acquired a modest construction, about 200 square meters spread over two floors and an attic, built in the seventeenth century and refurbished in the eighteenth. His will be the third transformation of a building, currently protected as a rijksmonument, to turn it into a house in which he and Hannie lived until 1999. The house has remained unpublished and unknown, as the last place lived by the Van Eyck's family, inhabited as a permanent process, for 35 years: a house that's just a house. This thesis takes the project as an object of study, trying to record the house as a house before its disappearance and simultaneously to open it as a published material for successive readings and interpretations. This means that the research results in a sum of three efforts. The first one that documents, raises, catalogs, photographs, records and archives the physical reality of the house to provide all the material to those who want to visit it virtually. The second that interviews, talks, listens, understands its inhabitants and their concerns to capture the house that still remains, understanding the importance of the everydayness in the making of a home. And the third that performs an interpretation based on the data collection, which orders the documents according to an intentional gaze, which designs the house from scratch to discover its generation process, to make it readable to the public. In short, this research proposes a long stay inside the house in Loenen aan de Vecht. From its insides, from the collection of vernacular art, the library, the architectural models, the avant-garde paintings, the photographs of the archive; the thesis builds Aldo van Eyck's musée imaginaire. After all, a man's story is a long detour around his house. / En 1964, després de més de 20 anys vivint a Amsterdam amb la seua família , Aldo Van Eyck es trasllada a Loenen aan de Vecht. Mesos abans havia adquirit una construcció modesta, de uns 200 metres quadrats repartits en dos plantes i una cambra, construïda en el segle XVII i remodelada en el XVIII. La seua era la tercera transformació d'un edifici, protegit actualment com a monument, per a convertir-ho en un habitatge on, junt a Hannie, visqué fins 1999. La casa de Loenen ha romàs fins hui inèdita i sense publicar, com l'únic projecte de Van Eyck ocupat per ell mateix com a procés permanent durant 35 anys: una casa que no es més que una casa. Esta tesi pren el projecte com a subjecte d'estudi, intentant fixar la casa com a casa abans de la seua desaparició i al mateix temps obrir la casa com a llibre publicat per a successives lectures i interpretacions. Açò significa que el treball resulta en una suma de tres esforços. El primer que documenta, alça, cataloga, fotografia, grava i arxiva la matèria física que conforma la casa per a posar tot el material a la disposició de qui vullga visitar-la virtualment. El segon que entrevista, conversa, escolta, comprén als seus habitants i les seues preocupacions per a recollir la casa que encara queda, comprenent la importància d'allò quotidià en la reconstrucció del llar. El tercer que llança una interpretació sobre el material elaborat, que l'ordena segons la mirada internacional, que torna a projectar la casa per a descobrir el procés de generació de l'obra, per a fer-la llegible al públic. En definitiva, la investigació proposa una llarga estància a l'interior de la casa de Loenen aan de Vecht. A través d'ella, de la col·lecció d'art vernacle, la biblioteca, les maquetes, les pintures de vanguardia, les fotografies de l'arxiu; la tesis aguaita el museu imaginari de Aldo Van Eyck. Al cap i a la fi, la història d'un home es una llarga volta entorn a sa casa. / Campos Uribe, A. (2018). Aldo van Eyck: le Musée imaginaire. La casa de Aldo y Hannie van Eyck en Loenen aan de Vecht [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/111845 / TESIS
19

Die verkryging van kapitaal in die Suid-Afrikaanse maatskappyereg met spesifieke verwysing na die aanbod van aandele aan die publiek

Delport, P.A. (Petrus Albertus) 28 January 2012 (has links)
AFRIKAANS: Die doel van hierdie verhandeling is om die proses van kapitaalverkryging deur die maatskappy te ondersoek en om veral op die begrip “aanbod van aandele aan die publiek” en verbandhoudende aangeleenthede klem te lê. Om hierdie doel te bereik was dit nodig gewees om op die verskillende kapitaalvorme te let soos wat dit ten opsigte van aandelekapitaal en leningskapitaal voorkom. Daar is in hierdie verband ook op enkele faktore gewys wat die maatskappy in ag moet neem in die keuse tussen die kapitaalvorme. Die regsreëls wat die aanbod van aandele aan die publiek reguleer is geskiedkundig nagespoor om sodoende die doel daarvan vas te stel en ook om te bepaal of daar nog aan hierdie doel voldoen word. Daar is ook ‘n regsvergelykende studie gedoen om sodoende perspektief ten opsigte van die effektiwiteit en wenslikheid van hierdie reëls te verkry. Die drie elemente wat die openbaarmakingsvereistes van die Maatskappywet 61 van 1973 in werking stel is in besonderhede ontleed om sodoende te bepaal of daar enige moontlike leemtes bestaan. Oplossings vir hierdie leemtes is dan ook in gepaste gevalle aan die hand gedoen, met die uitgangspunt steeds in gedagte dat die verkryging van aandelekapitaal deur middel van die aanbod van aandele aan die publiek sover moontlik vereenvoudig moet word om sekerheid ten opsigte van die maatskappy daar te stel. Die teenkant hiervan is egter ook in gedagte gehou, naamlik dat die belegger in aandele die mees effektiewe beskerming moet geniet. Dit het veral duidelik geblyk dat die onderskeid tussen die begrippe “inskrywing op” en “koop van” aandele vir sover dit die Suid-Afrikaanse situasie betref, uitgedien is en dat daar slegs voorsiening gemaak moet word vir die koop van aandele op die primêre sowel as op die sekondêre mark. As gevolg van die eng omskrywing van “aandeel” in die Maatskappywet blyk dit dat daar ‘n aantal prosedures van kapitaalverkrying is wat nie deur openbaarmaking gereguleer word nie en die benadeling van die betrokke beleggers tot gevolg het. Die laaste element wat die openbaarmakingsvereistes van die Maatskappywet in werking stel, naamlik die begrip “publiek”, is in wese ondefinieerbaar as gevolg van die vaagheid daarvan en gevolglik die element van sekerhied by kapitaalverkryging benadeel. Die verband tussen die prospektus en die voornoteringsverklaring is onduidelik en verwarrend veral ten opsigte van die dualistiese benadering wat ten opsigte van aanspreeklikheid vir onware verklarings in hierdie dokumente gevolg word en behoort opgeklaar te word ten behoewe van die belegger. ENGLISH: The purpose of this thesis is to investigate the process of the acquisition of capital by a company and in particular emphasis will be placed on the concept “an offer of shares to the public” and matters incidental thereto. In order to achieve this purpose it was necessary to distinguish the different forms of capital as manifested in share and loan capital. The different factors which the company should take into account in the exercise of the choice regarding the various forms of capital are also analyzed. The legal rules regulating the offer of shares to the public are historically investigated in order to establish their purpose and also to determine whether they still achieve this purpose. A comparative study was also done in order to place the desirability and efficacy of these rules in perspective. The three elements which make the disclosure requirements of the Companies Act 61 of 1973 operative are analyzed in detail in order to ascertain whether any shortcomings exist. Solutions for these shortcomings are suggested in appropriate cases but against the background of the concept that the acquisition of share capital by the offer of shares to the public must be simplified as far as possible in order to promote certainty from the viewpoint of the company. Against this however, the principle that the investor in shares should enjoy the most effective protection was also highlighted. It especially became apparent that the distinction between the concepts “subscription for” and “sale of” shares have become redundant in so far as they are applied in the South African experience and that provision should be made for the sale of shares on the primary as well as the secondary market. As a result of the narrow definition of “share” in the Companies Act it is apparent that there are a number of procedures for the acquisition of capital which are not regulated by disclosure and consequently have the effect of prejudicing the investors. The last element which makes the disclosure requirements in the Companies Act operative, namely the concept “public”, is in essence indefineable because of its uncertainty, with the effect that the element of certainty in the acquisition of capital is detracted from. The relationship between the prospectus and the prelisting statement is uncertain and confusing especially in respect of the dualistic approach with regards to untrue statements in these documents and should be clarified on behalf of the investor. / Thesis (LLD)--University of Pretoria, 1987. / Mercantile Law / unrestricted
20

Quantifying the Shadow Effect between Offshore Wind Farms with Idealized Mesoscale Models and Observed Wind Data

Werner, David January 2016 (has links)
Two post processing methods for quantifying the shadow effect of the offshore wind farm Princes Amalia (PA) onto Egmond aan Zee (OWEZ) wind farm are analyzed and benchmarked. The first method is the author’s proposed shadow effect determination method (SEDM), which quantifies an offshore wind farm’s shadow effect based on mesoscale WRF (Weather Research Forecast) idealized modeling and the observed frequency of the analyzed site’s wind conditions. The Fitch turbine parametrization scheme and Mellor-Yamada-Nakanishi-Niino (MYNN) surface layer and planetary boundary layer (PBL) schemes were used to simulate the wind farm’s interactions, based on site conditions. The proposed physical downscaling method (SEDM) uses filtered simulated atmospheric stability and wind speed conditions, in order to calculate the percent wind speed deficit downstream of PA, with regard, first, to observed wind speed frequency and, secondly, to wind speed and corresponding atmospheric stability regimes. Then a statistical downscaling method, based on the established Analog Ensemble (AnEn) technique, developed by Luca Delle Monache et al. (2011) was employed to verify the results from the first method. This method runs a post processing algorithm using the weighted average of the observations that were verified when the 15 best analogs were valid. Observed wind speed data at 10 m and 50 m height was used as Numerical Weather Prediction (NWP) input data and fit to observed time series data. From this, wind speeds at 116 m were extrapolated, in order to estimate the reconstructed atmospheric stability. The two methods were benchmarked and shadow effects were quantified in the range of 7.53% - 22.92% for the SEDM and within an 80% confidence interval of 0.23% -1.83% for the statistical downscaling method. Given the physical method’s exceedance of this confidence interval, WRF idealized modeling proves itself as a consistent means of quantifying an offshore wind farm’s wake, as demonstrated by comparable studies, however inaccurate when benchmarked to statistical modelling methods that use observed wind speed data to recreate atmospheric conditions. / Wake Research Group

Page generated in 0.0173 seconds