L'objectif d'un dispositif de mesure qnd est de contrôler l'action en retour, imposée par la mécanique quantique, qui se produit sur un système soumis a une mesure. Il est, en effet, possible de rejeter cette perturbation entièrement sur l'observable complémentaire de celle mesurée, laissant cette dernière inchangées. Nous présentons ici, de manière détaillée, un ensemble de critères quantitatifs permettant d'évaluer les performances d'un dispositif mesurant l'intensité d'un faisceau lumineux. Ces critères permettent en particulier de séparer clairement des domaines classique et quantique de fonctionnement d'un tel dispositif. La première expérience realisee utilise le couplage par effet kerr croise de deux faisceaux laser dans un milieu non linéaire. Ce milieu est compose d'un jet atomique de sodium place dans une cavite optique doublement résonnante. Nous avons effectue une analyse théorique complète des proprietes de bruit quantique d'un tel système. Nous avons identifie un régime de paramètres, base sur des effets de déplacement lumineux, pour lequel il existe un transfert efficace d'information du faisceau incident vers la voie de mesure, sans dégradation appréciable du signal. Ces prévisions théoriques ont ensuite été vérifiées dans notre expérience. Nous présentons également une deuxième expérience utilisant la détection puis la réémission de la lumière par des composants optoélectroniques a semi-conducteur. Nous montrons que lorsque les taux de conversion photon-électron pour les photodiodes et électron-photon our les diodes electro-luminescentes sont proches de l'unité, ce dispositif permet de mesurer puis de recréer les fluctuations quantiques du faisceau incident. La démonstration de principe que nous avons realisee laisse présager des applications possibles dans le domaine des réseaux de télécommunication optique.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This research is inserted in the Biomathematics Research Group of the Programa de Pós-Graduação em Matemática of the Universidade Federal de Santa Maria-RS. It consists in the study of a discrete model for a prey-predator-insecticide system based on the Coupled Map Lattice as basic tool for its formulation. Due to the serious problems that crop pests represent to agriculture, we aproached the Integrated Pest Management (IPM), which is a pest control system that seeks to preserve and enhance the natural mortality factors of pests by integrated use of control methods selected based on technical, economic, ecological and sociological parameters. The objective of this work is to build a model as simple as possible to study the effects of different pests management strategies. These strategies are divided into different treatments which take into account the number of measurements of pest population, establishing control levels (CL) and different control measures (pesticide and biological control). For comparison and to point where the treatment is more efficient to compute the total density of the pest population without any control measure and when each treatment is applied over a certain period of time. The difference between these values is converted into a decreasing percentage of the population of pests. The same is done to obtain the percentage decrease in the number of treated sites. It was found that the sooner you apply the insecticide in the system, the more effective the treatment. Furthermore, it was observed that the presence of predators (biological control) decreases the amount of treated sites and, in some instances, is less effective in controlling pest. / Esta pesquisa está inserida na Linha de Pesquisa Biomatemática, do Programa de Pós-Graduação em Matemática da Universidade Federal de Santa Maria-RS. Configura-se como um estudo sobre um modelo discreto para um sistema praga-predador-inseticida tendo como ferramenta básica para sua formulação a Rede de Mapas Acoplados. Devido aos sérios problemas que pragas de lavoura representam para agricultura, abordou-se o Manejo Integrado de Pragas (MIP), que é um sistema de controle de pragas que busca preservar e aumentar os fatores de mortalidade natural de pragas pelo uso integrado de métodos de controle selecionados com base em parâmetros técnicos, econômicos, ecológicos e sociológicos. O objetivo deste trabalho é construir um modelo tão simples quanto possível, para estudar as consequências de diferentes estratégias de manejos de pragas. Essas estratégias são divididas em tratamentos diferentes nos quais leva-se em consideração o número de medições da população de pragas, estabelecimento de níveis de controle (NC) e diferentes medidas de controle aplicadas (inseticida e controle biológico). Para comparar e apontar qual dos tratamentos é mais eficiente, computou-se a densidade total da população de pragas sem nenhuma medida de controle e quando cada um dos tratamentos é aplicado ao longo de um determinado período de tempo. A diferença entre esses valores é convertida em um percentual de decrescimento da população de pragas. O mesmo é feito para se obter o percentual de decrescimento do número de sítios tratados. Foi possível constatar que quanto mais cedo se aplica o inseticida no sistema, mais efetivo é o tratamento. Além disso, observou-se que a presença dos predadores (controle biológico) diminui a quantidade de sítios tratados e, em alguns momentos, é menos eficiente no controle da praga.

Since the seminal work of Fritz Heider and Marienne Simmel (1944) the study of animacy perception, or the perception and attribution of life from the motion of simple geometrical shapes has intrigued researchers. The intrigue for psychologists and vision scientists then and today centered on the stark disconnect between the simplicity of the visual input and the universal richness of the resulting percept. Infant research in this domain has become critical in examining the ontological processes behind the formation of animated percepts. To date, little is known about how infants process these kinds of stimuli. While numerous habituation studies have shown sensitivity to animate motion in general, none to date has examined whether infants actually perceive animate displays as social interactions. The overarching goal of the present thesis is to answer this question and further augment knowledge about the mechanisms behind the formation of animated percepts in infancy. I, along with my collaborators, do so in three ways, in three separate studies. First, we examined visual attention during online observation of randomly moving geometrical shapes in adults and infants (Study I, using eye tracking). Second, we examine distribution of visual attention in infancy during online observation of non-contact causal interactions, focusing on the most ubiquitous, fitness relevant of interactions – chasing (Study II, using eye tracking). Third, we answer the question whether infants perceive social content in chasing displays by measuring the neural correlates in response to chasing (Study III, using EEG). The collective contribution of the present work is also three fold. First, it demonstrates that starting at the end of the first year of life, human visual system is sensitive to cues that efficiently predict an interaction. Second, at 5-months infants begins allocating attention differently across agents within interactions. Finally, attention to specific objects is not due to low-level saliency but the social nature of the interaction. Subsequently, I present the case that perception of social agents is fast, direct, and reflects the workings of a specialized learning mechanisms whose function is the detection of heat-seeking animates in motion.

The purpose of this study was to develop a new investment strategy called NC-Score. The strategy is based on Chapter 14 of The Intelligent Investor written by Benjamin Graham, but with other key figures and criteria. The key figures were chosen on the basis of creating a varied and comprehensive picture of the companies as possible. They describe the companies' valuation, profitability, growth, cash flows, and capital structure. The strategy was tested between 2011 and 2020 at OMX Stockholm Large Cap. An index and Graham's original strategy have been used to compare NC-Score's performance during the period. The purpose of the index was to emulate the market and act as a minimum requirement for returns. Graham's portfolio gives a picture of how a similar strategy performs under the same conditions. The result for the strategy was a high return at a lower risk than our benchmark index and the original Graham strategy. Between 2011 and 2020, NC-Score generated a return of 191.67% with a Sharpe Ratio of 2.70. During the same period, OMX Stockholm 30 GI generated a return of 110.48% with a Sharpe Ratio of 0.91. NC-Score's results cannot be considered to be significantly positively risk-adjusted since it cannot be ruled out that the higher return in relation to the risk was due to a coincidence. / Syftet med denna studie var att utveckla en ny investeringsstrategi som benämns NC-Score. Strategin utgår ifrån kapitel 14 av The Intelligent Investor skriven av Benjamin Graham, fast med andra nyckeltal och kriterier. Nyckeltalen valdes med utgångspunkt att skapa en varierande och så omfattande bild av bolaget som möjligt. De beskriver bolagens värdering, lönsamhet, tillväxt, kassaflöden samt kapitalstruktur.  Strategin testades mellan 2011 och 2020 på OMX Stockholm Large Cap. Ett index samt Grahams ursprungliga strategi har använts för att jämföra prestationen av NC-Score under tidsperioden. Indexets syfte var att efterlikna marknaden och agera som ett minimikrav för avkastningen. Grahams portfölj ger en bild av hur en liknande strategi presterar under samma förutsättningar. Resultatet för strategin var en hög avkastning till en lägre risk än vårt jämförelseindex samt den ursprungliga Graham strategin. Mellan 2011 till 2020 genererade NC-Score en avkastning på 191,67% med en Sharpe Ratio på 2,70. Under samma period genererade OMX Stockholm 30 GI en avkastning på 110,48% med en Sharpe Ratio på 0,91. NC-Scores resultat kan inte anses vara signifikant positivt riskjusterad, då det inte kan uteslutas att den högre avkastningen i förhållande till risk berott på slumpen.

Intranet - Erwartungen und Entwicklungen JavaOS - ein Betriebssystem fuer Intranets Network Computer - Eine Verkaufsstrategie? Was gibt es schon? Netscape IFC's - Gestalten von graphische Nutzerinterfaces WWW-Sicherheitsaspekte - ein heisses Thema: Sicherheit im Netz Aufbau einer Certification Authority - z.B. IN e.V. Chemnitz Authentisierung und Verteilung von Konfigurationsfiles - am Bsp. URZ

Neutrinos are the perfect cosmic messengers when it comes to investigating the most violent and mysterious astronomical and cosmological events in the Universe. The interaction probability of neutrinos is small, and the flux of high-energy neutrinos decreases quickly with increasing energy. In order to find high-energy neutrinos, large bodies of matter needs to be instrumented. A proposed detector station design called ARIANNA is designed to detect neutrino interactions in the Antarctic ice by measuring radio waves that are created due to the Askaryan effect. In this paper, we present a method based on state-of-the-art machine learning techniques to reconstruct the direction of the incoming neutrino, based on the radio emission that it produces. We trained a neural network with simulated data, created with the NuRadioMC framework, and optimized it to make the best possible predictions. The number of training events used was on the order of 106. Using two different emission models, we found that the network was able to learn and generalize on the neutrino events with good precision, resulting in a resolution of 4-5°. The model could also make good predictions on a dataset even if it was trained with another emission model. The results produced are promising, especially due to the fact that classical techniques have not been able to reproduce the same results without having prior knowledge of where the neutrino interaction took place. The developed neural network can also be used to assess the performance of other proposed detector designs, to quickly and reliably give an indication of which design might yield the most amount of value to the scientific community. / Neutriner är de perfekta kosmiska budbärarna när det kommer till att undersöka de mest våldsamma och mystiska astronomiska och kosmologiska händelserna i vårt universum. Sannolikheten för en neutrinointeraktion är dock liten, och flödet av högenergetiska neutriner minskar kraftigt med energin. För att hitta dessa högenergetiska neutriner måste stora volymer av materia instrumenteras. Ett förslag på en design för en detektorstation kallas ARIANNA, och är framtagen för att detektera neutrinointeraktioner i den antarktiska isen genom att mäta radiopulser som bildas på grund av Askaryan-effekten. I denna rapport presenterar vi en metod baserad på toppmoderna maskininlärningstekniker för att rekonstruera riktningen på en inkommande neutrino, utifrån den radiostrålning som produceras. Vi tränade ett neuralt nätverk med simulerade data, som skapades med hjälp av ramverket NuRadioMC, och optimerade nätverket för att göra så bra förutsägelser som möjligt. Antalet interaktionshändelser som användes för att träna nätverket var i storleksordningen 106. Genom att undersöka två olika emissionsmodeller fann vi att nätverket kunde generalisera med god precision. Detta resulterade i en upplösning på 4-5°. Modellen kunde även göra goda förutsägelser på en datamängd trots att nätverket var tränat med en annan emissionsmodell. De resultat som metoden framtog är lovande, särskilt med avseende på att tidigare klassiska metoder inte har lyckats reproducera samma resultat utan att metoden redan innan vet var i isen som neutrinointeraktionen skedde. Nätverket kan också komma att användas för att utvärdera prestandan hos andra designförslag på detektorstationer för att snabbt och säkert ge en indikation på vilken design som kan tillhandahålla mest vetenskapligt värde.

A commercial non-contact atomic force microscope was improved to achieve utmost resolution on a routine basis. This system was used to study the (110) surface of rutile titanium dioxide. The focus was on understanding contrast formation in terms of tip-sample interaction mechanisms. Moreover, chromium and antimony-doped titanium dioxide was investigated. The implications of transition-metal doping on the surface structure of this highly interesting photocatalyst was studied at the atomic scale.

本研究は,双腕で作業プレートを支持することで閉リンク機構を構成し,作業プレートを操ることで十分な支持剛性を維持しながらプレート上での柔軟な作業空間を実現することを目指した.すなわち,ロボットでも従来の工作機械のNC制御の運動精度に近い性能を具現化する一方,人の作業に近い柔軟性を両立することであるその対象としてプレート上で球の転がりを取り上げ,その運動軌跡をコンピュータシミュレーションにより解析しながら,同時2軸の旋回運動の制御におけるその誤差解析およびその改善手法を確立する. / Recently, industrial dual-arm robots have gained attention as novel tools and we therefore focus on them to flexible control both the linear motion and the rotational motion of a working plate. However, it is difficult to measure the synchronous accuracy of two rotary axes without high accuracy gyro sensor. Thus, we proposed a novel method to measure it with a ball, which keeps a ball rolling around a circular path on it by dual-arm cooperative control. As a result, we demonstrated this method made it feasible to estimate the synchronous accuracy of two rotary axes of working plate. / 博士(工学) / Doctor of Philosophy in Engineering / 同志社大学 / Doshisha University

<p dir="ltr"> The general design goal of low latency communication systems is to minimize the end-to-end delay while attaining the predefined reliability and throughput requirements. The burgeoning demand for low latency communications motivates a renewed research interest of the tradeoff between delay, throughput, and reliability. In this dissertation research, we consider slotted-based systems and explore the potential advantages of the so-called sequential codes in low latency network communications.</p><p dir="ltr"> The first part of this dissertation analyzes the exact error probability of random linear streaming codes (RLSCs) in the large field size regime over the stochastic independently and identically distributed (i.i.d.) symbol erasure channels (SECs). A closed-form expression of the error probability <i>p</i>_<em>e</em> of large-field-size RLSCs is derived under, simultaneously, the finite memory length α and decoding deadline Δ constraints. The result is then used to examine the intricate tradeoff between memory length (complexity), decoding deadline (delay), code rate (throughput), and error probability (reliability). Numerical evaluation shows that under the same code rate and error probability requirements, the end-to-end delay of RLSCs is 40-48% of that of the optimal block codes (i.e., MDS codes). This implies that switching from block codes to streaming codes not only eliminates the queueing delay completely (which accounts for the initial 50% of the delay reduction) but also improves the reliability (which accounts for the additional 2-10% delay reduction).</p><p dir="ltr"> The second part of this dissertation focuses on the asymptotics of the error probability of RLSCs in the same system model of the first part. Two important scenarios are analyzed: (i) tradeoff between Δ and <i>p</i>_<em>e</em> under infinite α; and (ii) tradeoff between α and <i>p</i>_<em>e</em> under infinite Δ. In the first scenario, the asymptote of <i>p</i>_<em>e</em>(Δ) is shown to be <i>ρ</i>Δ^-1.5<i>e</i>^-^<em>η</em>^Δ. The asymptotic power term Δ^-1.5 of RLSCs is a strict improvement over the Δ^-0.5 term of random linear block codes. A pair of upper and lower bound on the asymptotic constant <i>ρ</i> is also derived, which are tight (i.e., identical) for one specific class of SECs. In the second scenario, a refine approximation is proposed by computing the parameters in a multiterm asymptotic form, which closely matches the exact error probability even for small memory length (≈ 20). The results of the asymptotics can be further exploited to find the <i>c</i>-optimal memory length <i>α</i>_<em>c</em>^*(Δ), which is defined as the minimal memory length α needed for the resulting <i>p</i>_<em>e</em> to be within a factor of <i>c</i>>1 of the best possible <i>p</i>_<em>e</em>^<em>*</em>_{<em> </em>}for any Δ, an important piece of information for practical implementation.</p><p dir="ltr"> Finally, we characterize the channel dispersions of RLSCs and MDS block codes, respectively. New techniques are developed to quantify the channel dispersion of sequential (non-block-based) coding, the first in the literature. The channel dispersion expressions are then used to compare the levels of error protection between RLSCs and MDS block codes. The results show that if and only if the target error probability <i>p</i>_<em>e</em> is smaller than a threshold (≈ 0.1774), RLSCs offer strictly stronger error protection than MDS block codes, which is on top of the already significant 50% latency savings of RLSCs that eliminate the queueing delay completely.</p>

Abstract is in English, Zulu and Afrikaans / South Africa is facing a challenge regarding the shortage of South African (SA) engineers. The National Certificate (Vocational) (NC(V)) was introduced by Department of Education (DoE) in 2007 to address this challenge. However, there has been a cry and dissatisfaction from the government, industry, community and other stakeholders that NC(V) engineering curriculum is not addressing the shortage of engineers. SA has one engineer per 2 600 people compared to international norms, where one engineer serves 40 people. It has been ten years since the introduction of NC(V) curriculum, SA should not be in this state of importing engineers if the NC(V) engineering is achieving the goals of National Development Plan 2030. Since lecturers are the implementers of the NC(V) engineering curriculum, it was necessary to investigate their experiences in search for improvement of the curriculum and to find out the challenges facing lecturers which are hindering the success of this curriculum. Lecturers, Senior Lecturers and a Head of Department (HoD) as the primary implementers of the engineering curriculum were involved in the study as participants. There were 15 participants for this study who are lecturing in one selected college but at two different campuses which is why the qualitative research approach was employed, making use of a multiple case study. They took part in semi-structured individual interviews and shared their experiences with the researcher. Their experiences revealed that lecturers are experiencing challenges with the implementation of NC(V) engineering curriculum. Their main challenge was the minimum requirement, which is a Grade 9 pass. Their concern was that no matter what they try, a learner who has not mastered Mathematics up to Grade 12 will struggle with engineering subjects. Emanating from this challenge, low attendance rate, low pass rate, low throughput rate and high drop-out rate is experienced by participants every year. One of the aims of the Transformative Learning Theory (used as one of the theories in the theoretical framework) is to allow lecturers to identify challenges and design improvement plans on their own. This study has indicated that Technical Vocational Education and Training (TVET) colleges have challenges that are hindering teaching and learning. It was evident that some lecturers believe that government officials should resolve such challenges. However, on engaging with different lecturers they realised that they have the capacity to address classroom-based challenges. If this can be the case in every college, teaching and learning will improve because that will mean lecturers are focusing on teaching and learning and taking ownership of their subjects and students. The governance challenges, such as reviewing the NC(V) curriculum yearly, provide subject specific training to upskill lecturers and implementing Work Integrated Learning (WIL) in the professional development of lecturers were recommended to be addressed by the Department of Higher Education and Training (DHET). / INingizimu Afrika ibhekene nenselelo mayelana nokusweleka konjiniyela. Uhlelo lwemfundo iNational Certificate (Vocational) (NC(V)) lwethulwa wuMnyango wezeMfundo ngonyaka ka 2007 ukuze uxazulule le nkinga. Yize-kunjalo kuye kwaba khona ukungagculiseki ngasohlangothini lukahulumeni, lwezimboni, lomphakathi kanye nakwezinye izinhlaka ezidlala indima yenkinga yokuntuleka konjiniyela. INingizimu Afrika (SA) inonjiniyela oyedwa kubantu abayi 2 600 uma iqhathaniswa nezinga lomhlaba lokuthi unjiniyela oyedwa kufanele ibhekane nabantu abayi 40. Sekudlule iminyaka eyishumi selokhu kwethulwa lezi zinhlelo, ngakho-ke, iSA akufanele izithole isesimeni sokudinga onjiniyela abavela ngaphandle uma ngabe izinhlelo ezikhona ziyanceda ekufinyeleleni izimpokophelo zoHlelo lwezokuThuthukisa iZwe National Development Plan 2030. Njengoba abafundisi bangabaqhubi bezinhlelo zobunjiniyela, phecelezi NC(V), nokho sasikhona isidingo sokuphenya lokho abahlangabezana nakho ukuze kuthuthukiswe izinhlelo futhi kuvunjululwe izinselele ezibhekene nabafundisi, okuyizinselele ezikhinyabeza impumelelo yalezi zinhlelo. Abafundisi, abafundisi abaphezulu kanye neziNhloko zoMnyango Head of Department (HoD) njengabaqhubi bokuqala bezinhlelo bebebambe iqhaza kulolu cwaningo. Abadlalindima abayi 15 bebefundisa kwikholeji ekhethiwe, kodwa emagatsheni amabili ehlukene, lokho okwenza isizathu kusetshenziswe uhlelo locwaningo oluzinze kwizingxoxo, ngokusebenzisa izinhlobonhlobo zocwaningo lotho. Kwenziwe izinhlolovo ezimbaxambili zocwaningo kanti abadlalindima bavezele umcwaningi ulwazi lwabo. Baye baveza ukuthi behlangabezene nezingqinamba uma besebenzisa izinhlelo zobunjiniyela NC(V). Inselele enkulu abahlangabezene nayo kuye kwaba yisidingo sokuphumelela uGreyidi 9. Inkinga enkulu yabo ukuthi bethi bezama ngamandla kulokho abakwenzayo, umfundi owehluleke esifundweni seMethamethiki ukufikela kuGreyidi 12 uzohlangabezana nobunzima ukuze aphumelele ezifundweni zobunjiniyela. Okubhebhethekiswa yile nselele, yizinga eliphansi labafundi abahambela lesi sifundo, izinga eliphansi labafundi abaphumelelayo kanye nezinga eliphezulu labafundi abayeka ukufunda njalo nje ngonyaka. Enye yezinhloso zethiyori yemfundo eguqulayo (used as one of the theories in the theoretical framework) ukuvumela abafundisi ukuba bakwazi ukubona izinselele futhi badizayine izinhlelo zokuzithuthukisa ngokwabo. Lolu cwaningo luye lwaveza ukuthi amakholeji. Phecelezi Vocational Education and Training (TVET) colleges ahlangabezene nezinselele eziphazamisa uhlelo lokufunda nokufundisa. Kuye kwacaca ukuthi abanye abafundisi babekholelwa ekutheni abasebenzi bakahulumeni kufanele baxazulule izinselele ezinjengazo lezi. Yize-kunjalo, ngemuva kokuxoxisana nabafundisi abahlukahlukene, baye bazwisisa ukuthi banamandla okuqeda izinselele ezisemagunjini okufunda. Uma ngabe lokhu kuyenzeka ngempela kuwo wonke amakholeji, ngakho-ke uhlelo lokufunda nokufundisa luzothuthuka ngoba lokho kuzochaza ukuthi abafundisi bagxile ohlelweni lokufunda nokufundisa kanti ngokunjalo baba yibo abalawula izifundo kanye nabafundi babo. Izinselele zokuphatha, ezinjengokubuyekezwa kohlelo lwemfundo, phecelezi NC(V) njalo nje ngonyaka, lunikeza ukuqeqeshwa okuthile okuthuthukisa abafundisi. Ukulandela uhlelo lwemfundo oluhlangene nomsebenzi olumayelana nokuthuthukiswa ngokomsebenzi wabafundisi kuyinto enconywe ukuba ilungiswe uMnyango weMfundo ePhakeme kanye nokuQeqeshwa (Department of Higher Education and Training). / ʼn Tekort aan ambagslui staar Suid-Afrika in die gesig. Om hierdie rede het die Departement van Onderwys in 2007 die Nasionale Sertifikaat (Beroepsgerig) (NS(B)) ingestel. Tot die ontevredenheid van die regering, die bedryf, die gemeenskap en ander belanghebbendes vul hierdie kurrikulum nie die tekort aan nie. In Suid-Afrika is daar een ambagspersoon vir elke 2 600 mense teenoor die internasionale norm van een ambagspersoon per 40 mense. Hierdie kurrikulum is meer as tien jaar gelede ingestel en SA moet tans ambagslui invoer. Die oogmerke van die Nasionale Ontwikkelingsplan 2030 word dus nie verwesenlik nie. Aangesien dosente die NS(B) kurrikulum vir werktuigkundiges implementeer, moes hulle belewenisse ondersoek en hulle probleme bepaal word om die kurrikulum te verbeter. Dosente, senior dosente en departementshoofde, as die implementeerders van hierdie kurrikulum, het aan die studie deelgeneem. Die 15 deelnemers is verbonde aan een kollege wat twee kampusse het. Daarom is ʼn kwalitatiewe navorsingsbenadering gevolg en ʼn veelvuldige gevallestudie gebruik. ʼn Halfgestruktureerde onderhoud is met elke deelnemer gevoer. Uit die onderhoude blyk dat dosente moeite met die implementering van die NS(B) kurrikulum ondervind. Die grootste struikelblok is die minimumvereiste van Graad 9. Al doen hulle ook wat, ʼn leerder wat nie Graad 12-wiskunde geslaag het nie, sal tegniese vakke nie kan bemeester nie. Afgesien hiervan is die bywonings- en slaagsyfer sowel as die omset jaar na jaar laag en die uitsaksyfer hoog. Die transformatiewe leerteorie is deel van die teoretiese raamwerk. Die oogmerk hiervan is dat dosente self probleme aantoon en met verbeteringsplanne kom. In hierdie studie is bevind dat kolleges vir tegniese beroepsgerigte onderwys en opleiding (TBOO) met probleme te kampe het wat onderrig en leer belemmer. Sommige dosente is van mening dat staatsamptenare hierdie probleme moet oplos. Ná gesprekke het talle dosente egter besef dat hulle oor die vermoë beskik om self hulle klaskamerprobleme op te los. As dit van alle kolleges waar is, sal onderrig en leer verbeter omdat dosente hulle op onderrig en leer sal toespits en vir hulle vakke en studente verantwoordelik sal wees. Vakopleiding word gegee om aan bestuursprobleme, soos die jaarlikse hersiening van die NS(B)-leerplan, die hoof te bied. Daar word aanbeveel dat die Departement van Hoër Onderwys en Opleiding toesien dat werkgeïntegreerde leer deel uitmaak van dosente se professionele ontwikkeling. / Curriculum and Instructional Studies / M. Ed. (Curriculum Studies)