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1
Miller, Melinda G. "Action for change? Embedding Aboriginal and Torres Strait Islander perspectives in early childhood education curricula". Thesis, Queensland University of Technology, 2013. https://eprints.qut.edu.au/60905/5/60905.pdf.
Abstract (sommario):
This thesis focuses on non-Indigenous educators’ work around embedding Indigenous perspectives in early childhood education curricula. In place of reporting examples of ‘good’ educational practice, the study questions how whiteness and racism continue to operate in diversity work that is seen to be productive and inclusive. The thesis argues for a more comprehensive framework for embedding Indigenous perspectives in before-school contexts to support educators’ efforts. New strategies for professional development are also suggested to support changes in disciplinary knowledge and pedagogy.
2
Bonfitto, Guilherme Bruno Barroso. "Estudo do comportamento da liga Al-Mg-Si 6005 A solubilizada e envelhecida". Universidade Presbiteriana Mackenzie, 2016. http://tede.mackenzie.br/jspui/handle/tede/3208.
Abstract (sommario):
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The possibility of increase use of aluminum in place of ferrous materials and wood in automotive industry, mainly in manufacturing of bus and truck structure, corrosion resistance, high ratio resistance and weight due low density and cost are the main reasons for this study. The alloy 6005A without any heat treatment appears disadvantageous compared to other alloys of aluminum and ferrous materials, however, with appropriate heat treatment, the mechanical properties are improved considerably, which is the case of this study. After comparisons in 36 different conditions of temperature of solubilization and temperature and time of artificial aging, the temperatures of 545ºC (30 minutes followed by water cooling) and 185°C (4 hours) solubilizing and artificial aging, respectively, showed the best growth of hardness alloy 63HRF to 85HRF. The metallography alloy after quenching was performed by optical microscopy showed in the microstructure equiaxed grains with homogeneous distribution. When compared the microstructures with different oven time and temperature, it was not showed the difference that relates the difference in hardness. It was realized the tensile test and the tensile strength limit values (σt) 279,21MPa and yield strength (σe) 257,33 MPa are among the average values for the alloy 6005A T6. The study of fatigue alloy was realized in a rotating bending testing machine (R=-1) at ambient temperature and the data was analyzed in a S-N curve. When applied stress less than 117,42 MPa, the specimen supported more than 1,0x107 cycles before breaking down. The fracture surfaces of the specimens with many tensile were analyzed by optical microscopy and by SEM and indicated the presence of ratchet marks, stretch marks, and integranular and transgranular cracks.
A possibilidade de crescimento da utilização do alumínio em substituição aos materiais ferrosos e de madeira no ramo automobilístico, principalmente na fabricação de carrocerias de ônibus e caminhão, resistência à corrosão, elevada razão resistência e peso devido a baixa massa específica e custo são as principais justificativas para este estudo. A liga 6005A sem nenhum tratamento térmico se apresenta desvantajosa em relação às demais ligas de alumínio e materiais ferrosos, porém, com o tratamento térmico adequado, suas propriedades mecânicas são aperfeiçoadas consideravelmente, que é o caso deste estudo. Após comparações em 36 condições distintas de temperatura de solubilização e temperatura e tempo em forno de envelhecimento artificial, as temperaturas de 545ºC (30 minutos seguido de resfriamento em água) e 185ºC e (4 horas) de solubilização e envelhecimento, respectivamente, foram as que apresentaram melhor incremento de dureza da liga de 63HRF para 85HRF. A metalografia da liga após têmpera foi realizada por microscopia óptica e apresentou na microestrutura grãos equiaixiais com distribuição homogênea. Quando comparada as microestruturas com tempos e temperatura distintas em forno, não foi visto nenhuma diferença que relacionasse a diferença da dureza. Realizado o ensaio de tração e os valores de limite resistência a tração (σt) de 279,21MPa, limite escoamento (σe) de 257,33 MPa estão entre os valores médios para a liga 6005A T6. O estudo de fadiga da liga foi realizado em uma máquina fadiga flexo-rotativa de ciclo reverso tensão-compressão (R=-1) à temperatura ambiente e os dados analisados em uma curva S-N. Com tensão de até 117,42 MPa, o corpo de prova suportou número de ciclos maior que 1,0x107 ciclos antes de romper. As superfícies de fratura dos corpos de prova com cargas variadas foram analisados através de microscopia ótica e pelo MEV e indicaram presença de marcas de catraca, estrias, clivagem e trincas integranulares e transgranulares.
3
Karagulyan, Avetik. "Sampling with the Langevin Monte-Carlo". Electronic Thesis or Diss., Institut polytechnique de Paris, 2021. http://www.theses.fr/2021IPPAG002.
Abstract (sommario):
L’échantillonnage des lois aléatoires est un problème de taille en statistique et en machine learning. Les approches générales sur ce sujet sont souvent divisées en deux catégories: fréquentiste vs bayésienne. L’approche fréquentiste corresponds à la minimisation du risque empirique, c’est à dire à l’estimation du maximum vraisemblance qui est un problème d’optimisation, tandis que l’approche bayésienne revient à intégrer la loi postérieure. Cette dernière approche nécessite souvent des méthodes approximatives car l’intégrale n’est généralement pas tractable. Dans ce manuscrit, nous allons étudier la méthode de Langevin, basée sur la discrétisation de l’EDS de Langevin. La première partie de l’introduction pose le cadre mathématique et l’intérêt d’étudier plus avant la question de l'échantillonnage. La suite de l’introduction s’attache à la présentation des méthodes d’échantillonnage.Le premier article concerne les bornes non-asymptotiques sur la convergence en distance de Wasserstein de Langevin Monte-Carlo pour les fonctions de potentiel lisses et fortement convexes. Nous établissons d’abord des bornes explicites pour LMC avec des step-sizes variantes?. Puis nous étudions la convergence pour des fonctions de potentiel avec des gradients stochastiques. Enfin, deux types de discrétisation sont présentés, pour les potentiels plus réguliers.Dans la deuxième article nous abordons le problème d’échantillonnage de loi log-concave (pas fortement) en utilisant LMC, KLMC et KLMC2. Nous proposons une pénalisation quadratique constante de la fonction de potentiel. Puis nous prouvons des bornes non-asymptotiques sur l’erreur de Wasserstein de ces méthodes pour le choix de pénalisation optimale. Enfin, nous soulignons l’importance du choix de l’échelle pour le mesurage des complexités des différentes méthodes.La troisième contribution principales est concentrée sur la convergence de la diffusion de Langevin dans le case log-concave. Une pénalisation variable dans le temps est proposée pour la fonction de potentiel. Nous prouvons des bornes explicites pour cette méthode nommée Penalized Langevin Dynamics. A la fin, le lien entre les algorithmes de Langevin et l’optimisation convexe est établi, ce qui nous permet de prouver des bornes similaires pour le gradient flowSampling from probability distributions is a problem of significant importance in Statistics and Machine Learning. The approaches for the latter can be roughly classified into two main categories, that is the frequentist and the Bayesian. The first is the MLE or ERM which boils down to optimization, while the other requires the integration of the posterior distribution. Approximate sampling methods are hence applied to estimate the integral. In this manuscript, we focus mainly on Langevin sampling which is based on discretizations of Langevin SDEs. The first half of the introductory part presents the general mathematical framework of statistics and optimization, while the rest aims at the historical background and mathematical development of sampling algorithms.The first main contribution provides non-asymptotic bounds on convergence LMC in Wasserstein error. We first prove the bounds for LMC with the time-varying step. Then we establish bounds in the case when the gradient is available with a noise. In the end, we study the convergence of two versions of discretization, when the Hessian of the potential is regular.In the second main contribution, we study the sampling from log-concave (non-strongly) distributions using LMC, KLMC, and KLMC with higher-order discretization. We propose a constant square penalty for the potential function. We then prove non-asymptotic bounds in Wasserstein distances and provide the optimal choice of the penalization parameter. In the end, we highlight the importance of scaling the error for different error measures.The third main contribution focuses on the convergence properties of convex Langevin diffusions. We propose to penalize the drift with a linear term that vanishes over time. Explicit bounds on the convergence error in Wasserstein distance are proposed for the PenalizedLangevin Dynamics and Penalized Kinetic Langevin Dynamics. Also, similar bounds are proved for the Gradient Flow of convex functions
4
Sousa, André João Miguel de. "Mixed matrix membranes a new platform for enzymatic reactions /". Enschede : University of Twente [Host], 2009. http://doc.utwente.nl/60605.
5
Wigley, Andrew. "Building monuments, constructing communities : landscapes of the first millenium BC in the central Welsh Marches". Thesis, University of Sheffield, 2002. http://etheses.whiterose.ac.uk/6005/.
Abstract (sommario):
This research examines the archaeological sequence from the first millennium BC in the central Welsh Marches. It situates the hillforts of this region within their broader landscape context by considering the practices involved in their construction, and their position within wider networks of routine activity. In order to achieve this, a detailed historiographical account of archaeological work on these monuments is presented. This forms the basis of a series of critically informed interpretations of the later prehistory of this region. My central thesis is that we must consider the landscape as Process if we wish to interpret the nested social relations that operated in this period. This demands that we develop a detailed understanding of the regional context of the practices associated with building and inhabiting the hillforts. As such, we need to explore the patterning and temporality of various forms of activity across the landscape, in order to comprehend how both places and objects were bound up in the reproduction of historically contingent social relations. I will work at different scales with a variety of forms of evidence. I examine the complex human palaeoecology of the region, considering how the structure of the landscape was created and sustained by the building and reworking of these monuments. In doing so, I place the developments we associate with the building of the first hillforts within their historical context. I also address the relationship between the hillforts and other classes of monuments, and how their inhabitation articulated with the creation, use and deposition of various forms of material culture. By moving beyond previous interpretative models, I demonstrate how these monuments became an integral part of the social worlds of the first millennium BC.
6
Zakari, Mohamed A. B. "The sufficiency and appropriateness of audit evidence obtained by Libyan auditors". Thesis, Liverpool John Moores University, 2011. http://researchonline.ljmu.ac.uk/6005/.
7
Siliotto, Matteo. "Valutazione analitica delle aree di delaminazione in materiali compositi avanzati soggetti ad impatti a bassa velocità". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6005/.
Abstract (sommario):
In questo lavoro di tesi è stato elaborato un modello analitico al fine di ottenere una stima dell’ampiezza di delaminazione a seguito di impatti a bassa velocità in laminati in composito, in particolare carbon/epoxy. Nel capitolo 2 è descritto il comportamento meccanico di tali laminati (equazioni costitutive della singola lamina, dell’intero laminato e costanti ingegneristiche dell’intero laminato per qualsiasi sistema di riferimento). Nel capitolo 3 viene descritta la filosofia di progettazione damage tolerance per tali materiali sottoposti a low-velocity impact (LVI) e richiamato il concetto di structural health monitoring. In particolare vengono descritti i tipi di difetti per un laminato in composito, vengono classificati gli impatti trasversali e si rivolge particolare attenzione agli impatti a bassa velocità. Nel paragrafo 3.4 sono invece elencate diverse tecniche di ispezione, distruttive e non, con particolare attenzione alla loro applicazione ai laminati in composito. Nel capitolo 4 è riportato lo stato dell’arte per la stima e la predizione dei danni dovuti a LVI nei laminati: vengono mostrate alcune tecniche che permettono di stimare accuratamente l’inizio del danno, la profondità dell’indentazione, la rottura delle fibre di rinforzo e la forza massima di impatto. L’estensione della delaminazione invece, è difficile da stimare a causa dei numerosi fattori che influenzano la risposta agli impatti: spesso vengono utilizzati, per tale stima, modelli numerici piuttosto dispendiosi in termini di tempo e di calcolo computazionale. Nel capitolo 5 viene quindi mostrata una prima formula analitica per il calcolo della delaminazione, risultata però inaffidabile perché tiene conto di un numero decisamente ristretto di fattori che influenzano il comportamento agli LVI. Nel capitolo 6 è mostrato un secondo metodo analitico in grado di calcolare l’ampiezza di delaminazione mediante un continuo aggiornamento della deflessione del laminato. Dal confronto con numerose prove sperimentali, sembra che il modello fornisca risultati vicini al comportamento reale. Il modello è inoltre fortemente sensibile al valore della G_IIc relativa alla resina, alle dimensioni del laminato e alle condizioni di vincolo. É invece poco sensibile alle variazioni delle costanti ingegneristiche e alla sequenza delle lamine che costituiscono il laminato. La differenza tra i risultati sperimentali e i risultati del modello analitico è influenzata da molteplici fattori, tra cui il più significativo sembra essere il valore della rigidezza flessionale, assunto costante dal modello.
8
Piras, Francesco <1978>. "A new global wheat marketmodel (GLOWMM) for the analysis of wheat export prices". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/6005/.
Abstract (sommario):
Food commodity prices fluctuations have important impacts on poverty and food insecurity across the world.
Conventional models have not provided a complete picture of recent price spikes in agricultural commodity markets,
while there is an urgent need for appropriate policy responses. Perhaps new approaches are needed in order to better
understand international spill-overs, the feedback between the real and the financial sectors and also the link between
food and energy prices. In this paper, we present results from a new worldwide dynamic model that provides short and
long-run impulse responses of wheat international prices to various real shocks.
9
Johansen, Arve. "Eksponering for ultrafine partikler (UFP), totalpartikler, polysykliske aromatiske hydrokarboner (PAH) og høyere aldehyder ved steking av flesk (bacon) på elektrisk komfyr og gassbluss". Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for industriell økonomi og teknologiledelse, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-15056.
Abstract (sommario):
Det har tidligere vært funnet en sammenheng mellom eksponering for stekeos og helseeffekter, spesielt luftveisplager. Det har også blitt identifisert en rekke mutagene og karsinogene komponenter i sekeos, og insidensen av kreft i luftveissystemet har blitt funnet å være høyere enn blant resten av befolkningen (Lund, 1986), (Coggon et al., 1986), (Berg et al., 1988), (Ng et al., 1993), (Notani et al., 1993). IARC (2010) har utalt at PAH og aldehyder er viktige når det gjelder kreft og stekeos. Konsentrasjon av forurensinger i luften som følge av steking kan variere veldig. Hvilke typer forurensing som stekeosen inneholder kan variere ut i fra hva slags type/mengde mat som blir tilberedt og hvilken type/mengde stekeolje/fett som brukes, samt temperatur og tilberedningsmetode. Spesielt viktig er det å unngå brenning av oljen/fettet, da det øker generering av partikler i stor grad (Evans et al., 2008).Alle forsøk ble foretatt i et laboratoriekjøkken i kjelleren på Gamle Fysikk, NTNU, i uke 5, 8 og 10, 2011. I uke 5 ble det stekt lettsaltet sideflesk på elektrisk komfyr, i uke 8 lettsaltet sideflesk på gassbluss og i uke 10 røkt bacon på gassbluss. Forsøkene gikk over tre dager hver uke. Det ble gjennomført 5 stekerunder á 15 min som ble etterfulgt av 25 min pause, totalt 3 timer og 20 minutt. Det ble målt konsentrasjon av PAH, aldehyder og totalpartikler, samt konsentrasjon og størrelsesfordeling til partiklene. Alle målingene ble foretatt i pustesonen til testpersonene. Alt måleutstyr var personbåret, bortsett fra TSI-3936 Scanning Mobility Particle Sizer (SMPS) som ble brukt for å fastslå partikkelkonsentrasjon og størrelsesfordeling. Dette systemet er stasjonært, men målingene ble foretatt via en silikonslange som ble plassert i pustesonen til testpersonen som sto for stekingen. For å utføre stekingen ble det rekruttert tre kvinnelige studenter ved NTNU. Alle testpersonene hadde en dag som ”steker” hver uke. De andre dagene sto de rundt komfyren og var behjelpelig med å legge i og ta av ferdigstekt lettsaltet sideflesk/røkt bacon. Resultatene fra våre forsøk viser generelt at steking av lettsaltet sideflesk/røkt bacon genererer høyere peak-konsentrasjon av partikler enn det som har blitt funnet i andre forsøk med steking av mat (Yeung & To, 2008), (Buonanno et al. , 2009). Imidlertid har steking av oksebiff i soyaolje og margarin blitt vist å kunne generere høyere peak-konsentrasjon av partikler (Sjaastad et al., 2010). I våre forsøk har steking av lettsaltet sideflesk og røkt bacon på gassbluss blitt funnet å generere høyere konsentrasjon av partikler enn steking av lettsaltet sideflesk på elektrisk komfyr. Årsaken til dette er sannsynligvis brenning av gass og brenning av fett/matrester på gassblusset. Partikler generert ved brenning av gass på gassblusset har blitt vist å være kilden til de aller minste partiklene (<14,6 nm). Forskjellen i partikkelkonsentrasjon mellom steking av lettsaltet sideflesk og røkt bacon ved hjelp av gassbluss og steking av lettsaltet sideflesk på elektrisk komfyr er størst for partikler med mobilitetsdiameter på henholdsvis 98,2 og 88,2 nm. I dette størrelsesområdet bidrar partikler generert av gassblusset med en relativt lav partikkelkonsentrasjon som ikke alene kan forklare differansen i partikkelkonsentrasjon mellom bruk av elektrisk komfyr og gassbluss. Sannsynlig forklaring på differansen er en kombinasjon av forbrenning av gass og forbrenning av fett/matrester på gassblusset. For partikler >300 nm er det liten forskjell i partikkelkonsentrasjon mellom bruk av gassbluss og elektrisk komfyr. Brenning av gass på gassblusset bidrar med svært liten konsentrasjon av partikler for så store mobilitetsdiametre.Det registreres at mobilitetsdiameteren ved peak partikkelkonsentrasjon endrer seg med tiden ved bruk av gassbluss. Årsaken til dette er sannsynligvis koagulering. Partikler koagulerer og danner færre, men større partikler. Graden av koagulasjon er avhenger av kvadratet av partikkelkonsentrasjonen (Nazaroff, 2004). Høy partikkelkonsentrasjon kan være årsaken til at vi observerer en forandring i mobilitetsdiameter i våre forsøk med steking av lettsaltet sideflesk/røkt bacon på gassbluss, mens det ikke har vært observert tilsvarende endring i mobilitetsdiameter i lignende forsøk (Dennekamp et al., 2001). Ved bruk av elektrisk komfyr ligger mobilitetsdiameteren stabilt gjennom hele forsøket. Når det gjelder konsentrasjonen av totalpartikler, observeres det at konsentrasjonen er relativt lik ved steking av lettsaltet sideflesk på gassbluss og elektrisk komfyr. Konsentrasjonen av totalpartikler er vesentlig lavere ved steking av røkt bacon på gassbluss, noe som sannsynligvis kan forklares med at det røkte baconet hadde lavere fett- og vanninnhold enn det lettsaltede sideflesket.
10
Knowlton, Autumn. "Q'eqchi' Mayas and defense of territory : learning through the contentious politics of land in “post-conflict” Guatemala". Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/60205.
Abstract (sommario):
My study explores how indigenous Q’eqchi’ Mayas in Guatemala draw political cohesion from their cultural relationship to their ancestral territories when responding to violent dispossession by extractive mining corporations and mono-crop agriculture. Drawing upon participant observation and 39 interviews conducted in the municipalities of Panzós and El Estor in 2013 and 2014, my research considers Q’eqchi’s’ defense of territory (defensa del territorio) as a salient, culturally specific collective action that draws continuity from centuries of conflicts over control of land and natural resources in Guatemala. Throughout Spanish colonization, independence, entry into the world capitalist market, and 20th century political upheavals, conflicts over land have featured consistently. In more recent history, the 36-year internal armed conflict (1960-1996) was a focal point of Q’eqchi’ research contributors’ testimony on their longstanding and interminable suffering for their lands. As a result of favorable conditions for international investors since the signing of the 1996 Peace Accords, the Guatemalan government has opened up the country, and indigenous lands in particular, to large-scale investment and development. Based on my findings, and building on Liza Grandia’s (2012) framing of three “conquests” of Q’eqchi’ lands, my study offers the term “fourth conquest” (Knowlton, 2016), a conquest by corporation, to explain the unique conjuncture of forces Q’eqchi’s face today when defending their lands. Their current tactical focus on land titling and juridical certainty is a response to the renewed invasion of extractive corporations into their ancestral territories. Through applying informal and social movement learning theories, this study considers Q’eqchi’s’ political encounters in defense of land as moments of learning which shape them as political actors and subjects. For Q’eqchi’s, land represents the confluence of cultural and spiritual bonds, material sustenance, and struggles to end political marginalization. A study of the labors involved in defense of territory provides valuable insights into the culturally specific learning processes that both structure and result from myriad political interventions into community, municipal, national, and international politics. Q’eqchi’s are strategically forming short and long-term alliances, and adopting identity claims based on indigenous rights, human rights, Guatemalan citizenship, and their cultural ties to their ancestral territory.Education, Faculty of
Graduate
11
Arun, Asim Kumar. "ISIS threat to India : how should India respond?" Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/60305.
Abstract (sommario):
This thesis traces the evolution of the Islamic State of Iraq and Syria (ISIS) and its present geopolitical extent and identifies the major trends and strategic directions. It examines the official pronouncements about its intentions regarding India and analyses the threat and proposes a policy prescription. Today’s terrorist organizations, including ISIS, publish online magazines and videos stating their policies, strategies and, tactics. These original voices were studied to understand them. The US invasion of Iraq (2003) and the subsequent failure in creating a “democratic government” acceptable to the powerful Sunni minority led to strife and sectarian violence. Radical Islamists and leftover elements of Saddam Hussain’s military got together and created large scale insurgency eventually leading to the declaration of a “Caliphate” calling out to all the Muslims in the world to accept it and join the effort to extend it. Less than 30 Indians as compared to a total of 25,000 are known to have migrated to ISIS area. Even with all its aberrations, India’s resilience as a syncretic and inclusive society renders hijrat (migration) an unattractive option. But coming together of radicalized youth into a small terror modules and striking nearer home is a real and probable threat. To protect itself, India should follow policies that integrate its Muslim community into the social mainstream. To prevent its people from getting radicalized through exposure to ISIS propaganda, the counter radicalization effort needs to be strengthened. The few persons who are known to have been radicalized but have not undertaken any kind of violence could be considered for softer deradicalization methods. By involving their family, friends and, community it is possible to bring these people back into normal domestic life. Attacks can still happen and the capability to deal with them must be enhanced by creating interdiction capabilities at the state and district levels. Finally, international terror requires measures across countries for which mechanisms for international cooperation must be created so that information, intelligence and, evidence flow seamlessly.Arts, Faculty of
Graduate
12
Fabulyak, Diana. "The diverse chemistry of some tungsten nitrosyl complexes". Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/60905.
Abstract (sommario):
The η⁵-C₅H₄iPr ligand imparts unprecedented effects on the physical and chemical properties of (η⁵-C₅H₄iPr)W(NO)(CH₂CMe₃)(η³-CH₂CHCMe₂) (2.3) and its precursors. Specifically, the reaction of (η⁵-C₅H₄iPr)W(NO)(CO)₂ (2.1) with PCl₅ results in the formation of the PCl₃ adduct of the (η⁵-C₅H₄iPr)W(NO)Cl₂ complex. Moreover, the subsequent metathesis reaction with the Mg(CH₂CH=CMe₂)₂ binary reagent occurs at the P-Cl bond of the adduct affording (η⁵-C₅H₄iPr)W(NO)(PCl₂CMe₂CH=CH₂)Cl₂ (2.4). The investigation of the unique effects of the η⁵-C₅H₄iPr ligand on the chemistry of tungsten-nitrosyl complexes has been extended to encompass (η⁵-C₅H₄iPr)W(NO)(H)(η³-CH₂CHCMe₂) (3.1), (η⁵-C₅H₄iPr)W(NO)(CH₂CMe₃)₂ (3.7), and trans-(η⁵-C₅H₄iPr)W(NO)(H)(κ²-PPh₂C₆H₄) (3.9). Results of these studies are summarized in following paragraphs.
Trapping reactions of the coordinatively unsaturated reactive intermediates, formed via intramolecular isomerization of 3.1, using PMe₃ show a preferential isomerization to the η¹ intermediate (η⁵-C₅H₄iPr)W(NO)(H)(η¹-CH₂CH=CMe₂), isolable as its PMe₃ adduct. Increasing the temperature facilitates the intramolecular rearrangement to the desired η²-alkene intermediate, but due to the thermal instability of the starting material, the C-H activation of alkanes cannot be carried out at very high temperatures.
The reaction of 3.7 with H₂ and PPh₃ shows instantaneous cis to trans isomerization of the generated ortho-metallated complex to form an inert trans-(η⁵-C₅H₄iPr)W(NO)(H)(κ²-PPh₂C₆H₄) (3.9). In this case, the faster rate of cis to trans isomerization hinders the C-H activation potential of the ortho-metallated product.
In addition, results of the investigation of the multiple C-H activation chemistry of (η5-C5Me5)W(NO)(CH₂CMe₃)2 (4.1) are presented. Thermolysis of 4.1 in neat hydrocarbons results in elimination of neopentane and formation of the transient (η⁵-C₅Me₅)W(NO)(=CHCMe₃) complex, which subsequently effects the multiple C-H activations of linear n-alkanes. The corresponding (η⁵-C₅Me₅)W(NO)(H)(η³-allyl) complexes obtained from the reactions with various n-alkanes have been isolated and characterized. These thermolysis reactions are accompanied by the generation of alkenes. Attempts to improve the production of olefins by varying different experimental factors have been investigated.
The preliminary results of the investigation of the C-C coupling reactivity of (η⁵-C₅Me₅)W(NO)(H)(η³-allyl) complexes with aldehydes and phenylacetylene are presented. Thermolysis reactions of (η⁵-C₅Me₅)W(NO)(H)(η³-allyl) complexes with aldehydes under aerobic conditions result in the formation of the corresponding coupled alcohol product. Also, thermolysis reactions of (η⁵-C₅Me₅)W(NO)(H)(η³-CH₂CHCMe₂) with phenylacetylene reveal incorporation of phenylacetylene molecules into the (η⁵-C₅Me₅)W(NO) and (η⁵-C₅Me₅)W(NO)(H)(η³-CH₂CHCMe₂) fragments.Science, Faculty of
Chemistry, Department of
Graduate
13
Tacoronte, Lisa Cristina. "Putting the press to the test : effects of temperature on Shea nut oil output". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/60205.
Abstract (sommario):
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 52).
In northern Ghana, part of a belt reaching from Sub-Saharan Africa to northern Uganda, women collect and process Shea nuts for their valuable oil. This oil is then used in various cosmetic, cooking, and medicinal products. However, the traditional process to extract oil from Shea kernels is time and labor intensive, and the quality is inconsistent, preventing it from being a primary source of income. In order to address these problems, a hydraulic jack press for extracting Shea oil was designed for a woman's co-operative in the village of New Longoro during the summer of 2009 as part of the International Development Design Summit. This thesis presents the results of a study of the effect of temperature and roasting on the Shea oil yield of a hydraulic jack press in order to evaluate its practicality. Extraction efficiency was measured for ground Shea kernels, either unroasted or roasted, for pressing temperatures ranging from 50-70*C. It was found that a pressing temperature of 60-62°C produced the highest oil yields for both roasted and unroasted nuts, with unroasted, ground kernels producing slightly more oil than roasted, ground kernels. The highest yield produced was (23 ± 2.8)% for unroasted Shea kernels at 60.7°C. Furthermore, it was observed that the optimal press chamber configuration is one with perforations along the circumference of the cylinder and on the base with slits to allow oil to escape. It was also confirmed that post-press filtering will be necessary to purify the oil for marketability. Finally, although the initial results are promising, more investigation is needed in order to determine the economic viability of using the hydraulic jack press.
by Lisa Cristina Tacoronte.
S.B.
14
Kang, Peter Kyungchul. "Transport in lattice fracture networks : concentration mean and variance". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/60805.
Abstract (sommario):
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 53-55).
We study transport in fractured systems using a stochastic particle tracking approach. We represent a fractured system as a two-dimensional lattice network system where the transport velocity in each fracture is a random variable. Our goal is to develop an exact effective macroscopic model for the concentration mean and variance from the microscopic disorder model. Within a Lagrangian transport framework, we derive effective equations for particle transport by coarse graining and ensemble averaging of the local scale Langevin equations. The results show that the mean transport can be captured exactly by an uncoupled continuous time random walk (CTRW) and the variance of the concentration by a novel two-particle CTRW formulation. Information about variance of concentration between realizations is important for understanding predictability. Therefore, ensemble mean together with variance provide critical information for understanding and predicting transport through the lattice network.
by Peter Kyungchul Kang.
S.M.
15
Schwartz, Andrew H. "Effect of reverberation on the directional sensitivity of auditory neurons : peripheral factors". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/60105.
Abstract (sommario):
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis. Page 41 blank.
Includes bibliographical references (p. 39-40).
Reverberation poses a challenge for theories of sound localization due to the interaction between the direct sound and the various acoustic reflections. These reflections corrupt binaural cues available to the receiver, resulting in a degradation of directional information available in the acoustic stimulus. Despite this interaction, directionally-sensitive neural responses in the auditory midbrain have been shown to be more robust to reverberation than predicted by a binaural model based on the long- term cross-correlation of the two ear-input signals (Devore et al., 2009, Neuron 63(1), pp 123-134). To determine the extent to which this robustness is central or peripheral in origin, and to quantitatively investigate whether peripheral adaptation contributes to this robustness, we recorded auditory nerve (AN) responses to tokens of noise with varying levels of simulated reverberation. We found many qualitatively similar trends in AN responses as have been previously observed in the midbrain, suggesting a peripheral origin of robust directional coding. In particular, we found that degradation of directional coding in the AN due to reverberation is stronger at high frequencies, and that this degradation is limited near the stimulus onset. We also show that peripheral adaptation plays a positive role in increasing robustness of directional representation in the presence of reverberation. We also investigated the nature of the frequency dependence observed in the degradation of directional coding due to reverberation. Based on our experimental results and the results of an auditory model, we argue that in addition to being affected by AN fibers' synchrony to stimulus fine structure, the frequency dependence is also produced by temporal structure of the reverberant room response.
by Andrew H. Schwartz.
S.M.
16
Brosseron, Lise Soares Barbosa. "Pulmonary thromboembolism and sudden unexpected death. Medico-legal review". Master's thesis, Faculdade de Medicina da Universidade do Porto, 2010. http://hdl.handle.net/10216/60805.
17
Rodrigues, Ana Filipa Gomes. "Américo Amarelhe : o impressivo artista da caricatura teatral". Master's thesis, Porto : [Edição do Autor], 2011. http://hdl.handle.net/10216/60905.
Abstract (sommario):
Américo Amarelhe, artista autodidacta, aprendeu a arte da caricatura pela experiência, embora fosse detentor de um talento inato que o fez começar a sua carreira com apenas oito anos. Pertenceu à primeira geração dos humoristas portugueses, facto que só por si lhe destaca um lugar na história da caricatura em Portugal. Embora a sua obra seja vastíssima, não obteve a importância que lhe era devida para a posteridade. Amarelhe seguiu uma vertente mais conservadora do chamado “raphaelismo”, embora não tivesse descurado as suas obras de um toque de modernidade, seguindo as tendências da época. Independentemente do estilo que seguiu, é incontestável o traço pessoal e original que conferiu às suas obras, levando-nos a conhece-las mesmo sem uma assinatura que comprove a sua autenticidade. A sua obra foi massivamente apreciada pela sua geração, visto que criou aquilo a que podemos chamar um Álbum teatral que no seu conjunto tece a história do teatro português. Não houve artista vinculado à arte do espectáculo na primeira metade do século XX que não tivesse sido glorificado pela pena de Américo Amarelhe. Seguiu a via do jornalismo tornando-se quase um “repórter fotográfico”, visto que ilustrava, em vários periódicos os momentos de ouro do teatro português. No entanto, foi igualmente director artístico de determinados periódicos relativos ao teatro, destacando-se o mensário De Teatro Caricatural…
18
Karnopp, Lodenir Becker. "Aquisição fonológica na língua brasileira de sinais : estudo longitudinal de uma criança surda". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1999. http://hdl.handle.net/10183/60505.
Abstract (sommario):
A presente tese aborda a produção dos primeiros sinais na LIBRAS e focaliza a aquisição fonológica de configurações de mão, locações e movimentos em uma criança surda, filha de pais surdos, durante o período de 8 aos 30 meses de idade. Com base no levantamento da ordem de aquisição, da freqüência e da precisão na produção das unidades formacionais do sinal, foram estabelecidas etapas no desenvolvimento fonológico da informante desta pesquisa. A partir do estabelecimento de etapas de desenvolvimento, foram descritas longitudinalmente as características de cada um dos parâmetros fonológicos, conforme recente abordagem de representação fonológica para as línguas de sinais, que se utiliza de princípios da Fonologia da Dependência (Dependency Phonology). No decorrer da descrição de dados foram mencionados universais compartilhados entre línguas de sinais.The aim of this thesis is to approach the production of the first signs in Brazilian Sign Language - LIBRAS, focusing on the phonological acquisition of Hand Configuration, Location and Movements. A deaf child born from deaf parents was observed during the period of 8 months to 2 ½ years-old. Based on the order of acquisition, frequency and accuracy of sign formative units, the caracteristics of the phonological development stages were analised, following recent approach on phonological representation for signed languages as well as the principles of Dependency Phonology. In summary, the emergency of the phonological system of LIBRAS is divided in stages of acquisition, which applies Dependency Phonology principles to the description of the development.
19
Bruch, Rafael. "Estudo das perdas térmicas de panelas entre o vazamento no forno elétrico à arco e o transporte para o forno-panela". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/60805.
Abstract (sommario):
A busca de melhoria de produtos siderúrgicos leva uma atenção especial para a área de aciarias. A introdução da metalurgia da panela, e portanto no refino secundário, contribuiu fundamentalmente para o aumento da qualidade do aço produzido. Um dos efeitos foi o aumento do tempo de residência do aço na panela, o que obrigou a utilização de materiais refratários de melhor qualidade. O controle da temperatura do aço líquido ao longo do processo de produção é de fundamental importância para se atingir os requisitos de qualidade e produtividade exigidos atualmente. Com o desenvolvimento de tecnologias siderúrgicas e a busca pela eficiência energética, torna-se necessário o conhecimento e redução das perdas térmicas do aço durante todo o ciclo produtivo. Neste trabalho foram estudadas, em uma aciaria elétrica a arco, as correlações entre as perdas térmicas das panelas através do conhecimento dos tempos de espera e do tempo de transporte das panelas do forno elétrico a arco até o forno-panela, além de comparar a temperatura do revestimento refratário de panelas com e sem isolante refratário. Melhorias no ciclo de panelas foram propostas visando diminuir as perdas térmicas das panelas, otimizar o ciclo de panelas e, consequentemente, reduzir o consumo de energia elétrica do forno-panela, diminuindo os custos envolvidos durante o processo de fabricação do aço. Os resultados apresentaram significância estatística entre o consumo de energia elétrica do fornopanela e as perdas térmicas das panelas. Através dos resultados obtidos observou-se que a minimização do tempo de espera da panela antes de iniciar o vazamento e a diminuição do tempo de transporte da panela até o forno-panela são fundamentais para diminuir as perdas térmicas nas panelas.The search for improved steel products takes special attention to the melthops. The introduction of ladle metallurgy, and therefore the secondary refining, contributed essentially to increase the quality of steel produced. One effect was to increase the residence time of the steel in the ladle, forcing the use of refractory materials of better quality. Temperature control of liquid steel during the process is of fundamental importance for achieving the requirements of quality and productivity currently required. With the development of technologies and the reach of energetic efficiency, it becomes necessary to reduce the thermal losses during the steel production cycle. In this study the correlations between the thermal losses in the ladles through the knowledge of waiting times and transport times of the ladles to the of the electric arc furnace to the ladle furnace were determined as well as a comparison between temperatures of ladle refractory lining with and without refractory insulation. Improvements in the ladle cycle were proposed to reduce the thermal losses in the ladles and to optimize the ladle cycle and, consequently, to reduce the electric energy in the ladle furnace, reducing the costs involved during the manufacturing process of steel. The results showed statistical significance between the energy consumption in the ladle furnace and heat losses in the ladles. The results obtained showed that minimizing the waiting time of the ladle before the tap and reducing transportation time of the ladle to the ladle furnace are essential to reduce the heat losses in the ladles.
20
Sibanda, Sabello Malcom. "Scenes of lamentation : a scenographic approach to landscape narratives". Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/60205.
Abstract (sommario):
Protests, often violent have become a major talking point in South African politics.
This dissertation focuses on three matters: decolonisation of public spaces in South Africa, the
notion of landscape narratives in re-interpreting landscapes of contestation and using a scenographic
approach in communicating landscape narratives.
Decolonisation of public spaces
The problem that this dissertation aims to address is how public spaces in South Africa can be
re-imagined so that they represent all inhabitants of the city they (public spaces) occupy.
The landscape narrative
The protests concerning the decolonising of public spaces in South Africa is an issue of narratives.
The protests are not a reaction to the actual design of the spaces, but they are a reaction to the
narrative that these spaces represent. The main issue regarding narratives in landscapes is whose
story gets communicated and whose story is left out. For that reason, the notion of landscape
narratives is investigated.
Scenography as an approach to landscape narratives
This dissertation focuses on the application of scenographic principles in representing and
communicating narratives in public spaces. Scenography is researched as an alternative approach
to dealing with landscape narratives because scenography emphasises on the design of performance
spaces where the narrative is performed, rather than the design of elements that represent the
narrative. This approach is important because the aim of the investigation is to move away from the
use of symbols and signs in communicating narratives in public spaces. The vandalism of statues
in South African public spaces is a testimony of why symbolism might not be the best narrative
approach.Mini Dissertation (ML (Prof))--University of Pretoria, 2017.
Architecture
ML (Prof)
Unrestricted
21
Tregoning, Tara. "An analysis of wrongful birth and wrongful life claims in South Africa". Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60105.
Abstract (sommario):
In our law, medical practitioners may incur liability if they do not properly exercise their legal duty towards a healthcare user and harm ensues.1 This negligent conduct of the medical practitioner will give rise to delictual liability if all the elements of delict are met: harm, conduct, causation, fault and wrongfulness.2 This dissertation intends to analyse the current legal position in South Africa regarding wrongful birth and wrongful life claims and specifically whether they constitute valid delictual claims, and will also look briefly at the global attitude towards such claims.
Wrongful life claims are particularly controversial and the topic sparks debate on the sanctity of life, human dignity and equality. These claims are said to involve questions too existential for a court to be expected to provide answers.3 This dissertation aims to discuss the arguments both for and against allowing claims for wrongful life, within the context of the Constitution4 and the ever-changing boni mores.Mini Dissertation (MPhil)--University of Pretoria, 2016.
Public Law
MPhil
Unrestricted
22
Beukes, Dennis Benjamin. "Creative arts in pre-service teacher education at South African Universities : a collective case study". Thesis, University of Pretoria, 2016. http://hdl.handle.net/2263/60405.
Abstract (sommario):
This thesis is a documentation of an empirical study in which qualitative methods
were employed to investigate the current programmes offered to pre-service
Creative Arts teachers at selected South African universities.
The subject, Creative Arts, is one of the compulsory learning areas for grades R -
9 in all South African public schools as prescribed by the Curriculum and
Assessment Policy Statement of 2011. In order for learners to gain maximum
benefit from the subject Creative Arts, pre-service teachers should be educated to
gain an understanding of the interrelatedness of the different art forms. The
theoretical framework underpinning this study is Mezirow's theory of transformative
learning which is based on critical reflection. Pre-service teachers should
therefore be encouraged to critically reflect on the learning process, rethinking
their own perspectives and constructing new knowledge in the process of
discourse with others.
Information on the current programmes offered at five South African universities
involved in this collective case study, was extrapolated from interviews with both
lecturers of Creative Arts programmes, and pre-service teachers enrolled for
courses in Creative Arts. Furthermore, observations were done at various sites to
obtain an in-depth perspective of how the arts are presented at these institutions.
Findings revealed that most universities offer Creative Arts programmes with an
arts specific approach. This corresponds with the demands of artistic disciplines,
and especially performance arts, which require the development of practical skills
which should be developed over an extended period. Although developing these
specialized skills and knowledge in each art form is important, the discrete
presentation of these arts may limit opportunities for students to experience
integrated arts activities. Moreover, pre-service teachers need practice in school
based settings to hone their teaching skills in delivering meaningful arts activities
to learners.
The recognition of common grounds between the different art disciplines makes
the merging of these arts into the broad subject, Creative Arts possible. These commonalities should be further explored, especially in a South African context
where African arts are inherently integrated. Benefits of co-operative curriculum
planning between the departments of Basic and Higher Education in the provision
of competent and skilful teachers for Creative Arts is the key to successful arts
education in South African schools.Thesis (DMus)--University of Pretoria, 2016.
Music
DMus
Unrestricted
23
Mandengenda, Lucy Patricia Rungano. "A critical analysis of entrepreneurship training programmes for business start-ups and growth in Zimbabwe". Thesis, University of Pretoria, 2016. http://hdl.handle.net/2263/60505.
Abstract (sommario):
With the background of global reports highlighting that a relationship exists between entrepreneurship education with entrepreneurial activity in an economy (Martinez, Levie, Kelley, Sæmundsson & Schøtt 2010) and that globally, small and medium enterprises (SMEs) play a major role in job creation and economic growth, this study seeks to establish the extent to which entrepreneurship training affects new venture formation and growth in Zimbabwe. The key research questions driving this study were:
? What skills training have businesses received to support start-up?
? What skills training have businesses received to support growth?
? To what extent do the selected entrepreneurship training programmes result in new business creation?
? To what extent do the entrepreneurship training programmes result in business growth?
? To what extent are training programmes content matched to enterprise needs?
? What factors have affected business performance in Zimbabwe for the start-up and growing of businesses?
A review of literature on entrepreneurship, training, education and transfer of skills or competencies highlighted key constructs and concepts for the study. It emerged that entrepreneurship studies have adopted theories and concepts from other disciplines. Entrepreneurship defined as a process of opportunity identification, evaluation and exploitation as well as for creating value or self-employment. There is consensus that certain facets of entrepreneurship can be taught. It was established that a well-designed programme uses a combination of didactics, skill-building and indicative learning strategies which combine knowledge, skill, competence and the attitude domain of learning. Of note is that the various skills required by entrepreneurs are technical, business management and personal entrepreneurial skills. The entrepreneurial process for new venture creation requires skills for its various stages.
The situation in Zimbabwe was investigated through empirical research on entrepreneurship training programmes for SMEs by studying entrepreneurs trained in the ILO and Empretec entrepreneurship programmes which are used globally and in African countries including Zimbabwe. Four entrepreneurship models developed in South Africa were reviewed as a basis for a framework to review the ILO and Empretec programmes implemented in Zimbabwe. The knowledge gap identified is that of the effectiveness and efficacy of the long established two globally implemented programmes for start-ups and growth and the relevance of entrepreneurship training programmes in developing countries particularly in Africa.
The theoretical perspective is positivism, research approach is deductive, using survey strategy and quantitative data for testing hypothesis. The main research findings and study contribution were five factors identified through factor analysis, namely business skills, entrepreneurial skills, business performance skills, business planning and presentation skills and the programme methodology. These skills or competencies are identified as some of the critical elements in the four training models reviewed and found to be necessary aspects of effective entrepreneurship training programmes. It was further established that pertaining to their design, content and structure, the ILO and Empretec training programmes need to include both key entrepreneurship and business skills during the core initial training, however both programmes resulted in business start-up rates and significant skills transfer, however limited on business growth and that demographic variables that are significant to entrepreneurship and business performance skills were the location/ place of business operation and the legal form of business. Policy makers, donors and sponsors should support more holistic and integrated programmes reflecting at a minimum the identified skills and competencies and appropriate methodologies.Thesis (PhD)--University of Pretoria, 2016.
Business Management
PhD
Unrestricted
24
Gidey, Hagos Hailu. "Numerical solution of advection-diffusion and convective Cahn-Hilliard equations". Thesis, University of Pretoria, 2016. http://hdl.handle.net/2263/60805.
Abstract (sommario):
In this PhD thesis, we construct numerical methods to solve problems described by advectiondiffusion
and convective Cahn-Hilliard equations. The advection-diffusion equation models
a variety of physical phenomena in fluid dynamics, heat transfer and mass transfer or alternatively
describing a stochastically-changing system. The convective Cahn-Hilliard equation
is an equation of mathematical physics which describes several physical phenomena such
as spinodal decomposition of phase separating systems in the presence of an external field
and phase transition in binary liquid mixtures (Golovin et al., 2001; Podolny et al., 2005).
In chapter 1, we define some concepts that are required to study some properties of numerical
methods. In chapter 2, three numerical methods have been used to solve two problems
described by 1D advection-diffusion equation with specified initial and boundary conditions.
The methods used are the third order upwind scheme (Dehghan, 2005), fourth order
scheme (Dehghan, 2005) and Non-Standard Finite Difference scheme (NSFD) (Mickens,
1994). Two test problems are considered. The first test problem has steep boundary layers
near the region x = 1 and this is challenging problem as many schemes are plagued by nonphysical
oscillation near steep boundaries. Many methods suffer from computational noise
when modelling the second test problem especially when the coefficient of diffusivity is very
small for instance 0.01. We compute some errors, namely L2 and L1 errors, dissipation
and dispersion errors, total variation and the total mean square error for both problems and compare the computational time when the codes are run on a matlab platform. We then
use the optimization technique devised by Appadu (2013) to find the optimal value of the
time step at a given value of the spatial step which minimizes the dispersion error and this
is validated by some numerical experiments.
In chapter 3, a new finite difference scheme is presented to discretize a 3D advectiondiffusion
equation following the work of Dehghan (2005, 2007). We then use this scheme
and two existing schemes namely Crank-Nicolson and implicit Chapeau function to solve a
3D advection-diffusion equation with given initial and boundary conditions. We compare the
performance of the methods by computing L2- error, L1-error, dispersion error, dissipation
error, total mean square error and some performance indices such as mass distribution ratio,
mass conservation ratio, total mass and R2 which is a measure of total variation in particle
distribution. We also compute the rate of convergence to validate the order of accuracy of
the numerical methods. We then use optimization techniques to improve the results from
the numerical methods.
In chapter 4, we present and analyze four linearized one-level and multilevel (Bousquet et al.,
2014) finite volume methods for the 2D convective Cahn-Hilliard equation with specified
initial condition and periodic boundary conditions. These methods are constructed in such
a way that some properties of the continuous model are preserved. The nonlinear terms
are approximated by a linear expression based on Mickens' rule (Mickens, 1994) of nonlocal
approximations of nonlinear terms. We prove the existence and uniqueness, convergence
and stability of the solution for the numerical schemes formulated. Numerical experiments
for a test problem have been carried out to test the new numerical methods. We compute
L2-error, rate of convergence and computational (CPU) time for some temporal and spatial
step sizes at a given time. For the 1D convective Cahn-Hilliard equation, we present
numerical simulations and compute convergence rates as the analysis is the same with the
analysis of the 2D convective Cahn-Hilliard equation.Thesis (PhD)--University of Pretoria, 2016.
Mathematics and Applied Mathematics
PhD
Unrestricted
25
Prinsloo, Yolandi. "Competitive intelligence in a multinational consulting engineering company: A case study". Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60905.
Abstract (sommario):
Intelligence is not a new concept and dates back to over 5000 years of Chinese history. The concept of competitive intelligence is, however, still an evolving field and consists of three main streams, i.e. military intelligence, national security and political science and business intelligence. The modern-day business interpretation of competitive intelligence has been changed and refined by various researchers, but the essence of these interpretations is the same and lies in the ethical gathering and interpretation of information to drive innovation and inform strategic decision-making. If successful, this assists companies in gaining a competitive advantage.
The consulting engineering industry is experiencing major disruptions, such as rapid advancement in technology, the global economic downturn and changes in the traditional business arena. To combat these disruptions and gain long-lasting competitive advantage and growth, competitive intelligence must not only be embedded in the culture of a company, but also form the cornerstone of innovation and inform strategic business decisions. The aim of this study was to determine how competitive intelligence is implemented in an anonymous multinational consulting engineering company. To establish this aim, the nature of competitive intelligence was firstly investigated by defining the competitive intelligence process, identifying the influencers and attributes of useful information, studying the need for and challenges of competitive intelligence implementation and exploring some of the competitive intelligence tools/techniques. Secondly, the need for establishing a competitive intelligence culture was examined by explaining the concept of corporate culture and exploring the ways to foster a competitive intelligence culture and community. The challenges relating to the implementation of competitive intelligence across borders were also examined. Thirdly, the relationship between competitive intelligence and innovation and competitive intelligence and business strategy were studied. Lastly, the types of information gathered, stored and distributed within the company as part of competitive intelligence activities and its importance to employees were investigated.
The research method of the study was a survey, the results of which were combined in 11 conclusive findings:
• The existing information function of the company is not used as part of competitive intelligence activities
• The business strategy is client-centric and the company views information on clients as most important
• The company relies heavily on people as sources of information
• War gaming is not seen as an important competitive intelligence tool, even though the industry is experiencing numerous disruptions
• The company has a weak knowledge-sharing culture, resulting in a silo effect complicated by the multinational nature of the company
• There is a need for a more formalised process, information repository/system and/or tools that will support information-sharing within the company
• There is insufficient awareness, support and use of intelligence by the senior and top management of the company to drive a knowledge-sharing culture and support competitive intelligence efforts
• The company views competitive intelligence as essential for gaining a competitive advantage, but is average when it comes to responding to changes in the business environment
• The company believes competitive intelligence has a positive influence on decision-making and strategies are updated regularly based on intelligence received
• Innovation is viewed as essential to the survival of the company and current initiatives to cultivate innovation should be expanded
• The multinational nature of the company significantly increases the need for a more disciplined focus on competitive intelligence.
Based on the findings, it was established that competitive intelligence is applied with relative success in some areas of the company, but that a more formalised approach will be beneficial. In conclusion, several actions the company could consider were recommended to enhance its current competitive intelligence activities.Intelligence is not a new concept and dates back to over 5000 years of Chinese history. The concept of competitive intelligence is, however, still an evolving field and consists of three main streams, i.e. military intelligence, national security and political science and business intelligence. The modern-day business interpretation of competitive intelligence has been changed and refined by various researchers, but the essence of these interpretations is the same and lies in the ethical gathering and interpretation of information to drive innovation and inform strategic decision-making. If successful, this assists companies in gaining a competitive advantage. The consulting engineering industry is experiencing major disruptions, such as rapid advancement in technology, the global economic downturn and changes in the traditional business arena. To combat these disruptions and gain long-lasting competitive advantage and growth, competitive intelligence must not only be embedded in the culture of a company, but also form the cornerstone of innovation and inform strategic business decisions. The aim of this study was to determine how competitive intelligence is implemented in an anonymous multinational consulting engineering company. To establish this aim, the nature of competitive intelligence was firstly investigated by defining the competitive intelligence process, identifying the influencers and attributes of useful information, studying the need for and challenges of competitive intelligence implementation and exploring some of the competitive intelligence tools/techniques. Secondly, the need for establishing a competitive intelligence culture was examined by explaining the concept of corporate culture and exploring the ways to foster a competitive intelligence culture and community. The challenges relating to the implementation of competitive intelligence across borders were also examined. Thirdly, the relationship between competitive intelligence and innovation and competitive intelligence and business strategy were studied. Lastly, the types of information gathered, stored and distributed within the company as part of competitive intelligence activities and its importance to employees were investigated. The research method of the study was a survey, the results of which were combined in 11 conclusive findings: • The existing information function of the company is not used as part of competitive intelligence activities • The business strategy is client-centric and the company views information on clients as most important • The company relies heavily on people as sources of information • War gaming is not seen as an important competitive intelligence tool, even though the industry is experiencing numerous disruptions • The company has a weak knowledge-sharing culture, resulting in a silo effect complicated by the multinational nature of the company • There is a need for a more formalised process, information repository/system and/or tools that will support information-sharing within the company • There is insufficient awareness, support and use of intelligence by the senior and top management of the company to drive a knowledge-sharing culture and support competitive intelligence efforts • The company views competitive intelligence as essential for gaining a competitive advantage, but is average when it comes to responding to changes in the business environment • The company believes competitive intelligence has a positive influence on decision-making and strategies are updated regularly based on intelligence received • Innovation is viewed as essential to the survival of the company and current initiatives to cultivate innovation should be expanded • The multinational nature of the company significantly increases the need for a more disciplined focus on competitive intelligence. Based on the findings, it was established that competitive intelligence is applied with relative success in some areas of the company, but that a more formalised approach will be beneficial. In conclusion, several actions the company could consider were recommended to enhance its current competitive intelligence activities.
Dissertation (MIS) --University of Pretoria, 2016.
Information Science
MIS
Restricted
26
Brosseron, Lise Soares Barbosa. "Pulmonary thromboembolism and sudden unexpected death. Medico-legal review". Dissertação, Faculdade de Medicina da Universidade do Porto, 2010. http://hdl.handle.net/10216/60805.
27
DE, RUITER Adrienne Desirée. "Dehumanisation and moral silencing : a normative account with illustrations from the refugee crisis". Doctoral thesis, European University Institute, 2019. http://hdl.handle.net/1814/60505.
Abstract (sommario):
Defence date: 15 January 2019Examining Board: Professor Jennifer Welsh, EUI (Supervisor); Professor Andrea Sangiovanni, EUI; Professor Nick Vaughan-Williams, University of Warwick; Professor Bert van den Brink, Utrecht University.
What does it mean to fail to treat, perceive, or portray people as human? This is the central question of scholarship on dehumanisation. While empirical studies describe the process of dehumanisation in its practical facets, normative research analyses what renders dehumanisation morally wrong. The predominant approach in the normative field conceptualises dehumanisation as a severe violation or degradation of human dignity. In this thesis, I challenge the human dignity view of dehumanisation based on the idea that it depends on contentious claims about what it means to be human and fails to distinguish clearly between viewing people as less human and less than human. As an alternative, I develop a normative account of dehumanisation that focuses on the difference between relating to people as fellow human beings and relating to them as animals or objects. I contend that this distinction is signalled by the question whether we view persons as being able to make moral claims on us. Human beings, I argue, share a discursive moral community through which they can make moral appeals on each other. Dehumanisation can therefore be conceived as a failure to recognise people as interlocutors who can make such claims. The moral wrongness of dehumanisation then lies in moral silencing, which entails that people lose their ability to effectively make moral claims within their interaction(s) with the perpetrator(s) of dehumanisation. Moral silencing constitutes a unique moral wrong because it undermines the foundations of human morality, which is fundamentally enabled and shaped by the possibility of people to make normative claims on one another. The thesis illustrates this view through the personal stories of refugees and asylum seekers of their experiences with dehumanisation and related practices of exclusion and rejection, such as humiliation, marginalisation, stigmatisation, and inhumane treatment. Analysis of the interview material has served two roles: it supports the view that dehumanisation is unique along the spectrum of exclusionary practices and it helps to elucidate the relation between dehumanisation, fundamental rights violations, and the deprivation of basic needs in the refugee crisis.
28
Shi, Tongjia. "Cycle lengths of θ-biased random permutations". Scholarship @ Claremont, 2014. http://scholarship.claremont.edu/hmc_theses/65.
Abstract (sommario):
Consider a probability distribution on the permutations of n elements. If the probability of each permutation is proportional to θK, where K is the number of cycles in the permutation, then we say that the distribution generates a θ-biased random permutation. A random permutation is a special θ-biased random permutation with θ = 1. The mth moment of the rth longest cycle of a random permutation is Θ(nm), regardless of r and θ. The joint moments are derived, and it is shown that the longest cycles of a permutation can either be positively or negatively correlated, depending on θ. The mth moments of the rth shortest cycle of a random permutation is Θ(nm−θ/(ln n)r−1) when θ < m, Θ((ln n)r) when θ = m, and Θ(1) when θ > m. The exponent of cycle lengths at the 100qth percentile goes to q with zero variance. The exponent of the expected cycle lengths at the 100qth percentile is at least q due to the Jensen’s inequality, and the exact value is derived.
29
Santos, Boada Germán. "Análisis y evaluación de los sistemas de protección contra la congestión en la red digital de sevicios integrados de banda ancha". Doctoral thesis, Universitat Politècnica de Catalunya, 1993. http://hdl.handle.net/10803/6005.
30
Schlatter, Marti J. "Ethanol in an era of high energy prices". Connect to resource, 2006. http://hdl.handle.net/1811/6005.
Abstract (sommario):
Thesis (Honors)--Ohio State University, 2006.Title from first page of PDF file. Document formattted into pages: contains 25 p.; also includes graphics. Includes bibliographical references (p. 23-25). Available online via Ohio State University's Knowledge Bank.
31
簡, 玉聰, e Chien Yu-Tsung. "アメリカ社会保障行政における行政法審判官の独立性保障(一) : 七〇年代以降における管理強化策の諸問題を中心に". 名古屋大学大学院法学研究科, 2002. http://hdl.handle.net/2237/6005.
32
McNear, Veronica Ann. "Low-level convergence and its role in convective intensity and frequency over the Houston lightning and rainfall anomaly". Texas A&M University, 2003. http://hdl.handle.net/1969.1/6005.
Abstract (sommario):
An increase in the amount of lightning and rainfall over the Houston area, compared
to the surrounding rural areas, has been well documented in previous studies. The
placement of a Shared Mobile Atmospheric Research and Teaching Radar (SMART-R)
in the Houston area during the summer season of 2005 presented a unique opportunity to
investigate the role of boundary-layer convergence in modulating convective frequency
and intensity and, thereby, likely causing the rainfall and lightning anomalies. The role
of the urban heat island (UHI) and the sea-breeze, as a source of low-level convergence
leading to enhanced convection over Houston, was examined.
Hourly average dual-Doppler wind and convergence maps were created on 1 X 1 km
grids for an eleven-week period. By using these images along with average lightning,
rainfall, and reflectivity for a large Houston-centered domain, it was possible to discern a
correlation between low-level convergence and convection. Also, past findings of
enhancement in lightning and rainfall over Houston and downwind of Houston were
validated. High convergence levels for the Houston area in the mid-morning were
followed closely by a peak in convection in the early afternoon. The enhancement of rainfall and lightning over and downwind of downtown was found to be primarily from a
large increase in frequency of deep convective events when compared to the surrounding
domain. Also, it was found that UHI, rather than sea-breeze, was likely the primary
causative mechanism in the development of convection over the Houston area because
of the lack of deep convection in areas equally affected by the sea-breeze and the timing
of the convection compared to time of peak sea-breeze. An area of weaker enhancement
south of Houston, not discussed in previous studies, was found to be present, possibly
from the interactions between the bay-breeze off of the Galveston Bay and the seabreeze.
33
Kreiner-Phillips, Katharine. "The effect of success on elite athletes' performance: An exploratory study". Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/6005.
Abstract (sommario):
The purpose of this study was to explore the effects of success on elite athletes who reached the top in their sport. Individual in-depth interviews were conducted with 17 world champion athletes, representing 7 different sports from 4 different countries. All athletes, 11 male and 6 female subjects had won major international competitions (i.e. World Cup, World Championships or Olympic Games) between the years 1964 and 1988. The number of individual wins ranged from 1 to 86. The results indicate that athletes who won at this level, subsequently experienced many additional demands. Most had little or no assistance in dealing with these demands. Approximately one third of these athletes handled the additional demands well and continued to win. Many of the remaining two thirds did not handle the additional demands well and either never repeated their winning performance or took a significant amount of time to do so. Strategies to help prepare future champions to handle these demands are suggested.
34
Olszewski, Arnold. "Modeling Alphabet Skills as Instructive Feedback within a Phonological Awareness Curriculum". Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/6005.
Abstract (sommario):
This study investigated the use of instructive feedback for modeling early literacy skills. Instructive feedback is defined as the presentation of additional information during the positive feedback phase of learner trials. Thus, it is a way of modeling additional information when students respond to a trial correctly. Previous studies have demonstrated that instructive feedback can facilitate students’ observational learning of skills, such as sight words, numerals, and vocabulary. Instructive feedback has yet to be investigated when modeling early literacy skills.
A modified version of an evidence-based early literacy intervention, PAth to Literacy, was used. Studies examining the efficacy of this intervention have shown it to be effective for teaching phonological awareness (PA) skills, including blending, segmenting, word part identification, and initial phoneme identification. Alphabet instruction is included in the intervention, although effects have been minimal. Instructive feedback was investigated as a novel method of incorporating alphabet instruction within a scripted phonological awareness intervention. Instructive feedback that modeled letter names and letter-sound correspondences was included during the positive feedback in PAth to Literacy.
A multiple baseline design across sets of letters was used to determine whether students acquire letter names and sounds through observational learning. Each phase of the study included instructive feedback that modeled names and sounds for a set of four letters. Upon completion of each phase, a new set of four letters was introduced. An Alphabet Mastery Monitor was used to measure student growth on alphabet skills. Student progress on PA tasks also was measured using a researcher-developed PA Fluency Measure. It was hypothesized that students would learn letters modeled through instructive feedback during each phase and would demonstrate progress on the PA skills taught through direct instruction. The six children who completed the experiment demonstrated gains in phonological awareness skills following instruction with PAth to Literacy. However, there were no consistent gains on alphabet skills following instructive feedback.
A second experiment was conducted to determine whether changes in the delivery of instructive feedback resulted in gains on the Alphabet Mastery Monitor. Researchers served as interventionists and instruction was delivered one-on-one. The instructive feedback was modified to include a progressive time delay and letters were discriminated from a field of four. Eight children completed the full intervention. All children demonstrated gains on phonological awareness and alphabet knowledge following instruction, indicating that a modified version of instructive feedback can be used to teach alphabet skills. Information from this study will inform clinical practice for educators including speech-language pathologists. Instructive feedback is a useful tool for educators and speech language pathologists to use when teaching early language and literacy skills.
35
Ulker, Birol. "Minimization of SOPs for bi-decomposable functions and non-orthodox/orthodox functions". Thesis, Monterey, Calif. Naval Postgraduate School, 2002. http://hdl.handle.net/10945/6005.
Abstract (sommario):
Approved for public release; distribution is unlimited.A logical function f is AND bi-decomposable if it can be written as f x1, x2)= h1 (x1) h2(x2), where x1 and x2 are disjoint. Such functions are important because they can be efficiently implemented. Also many benchmark functions are AND bi-decomposable. Surprisingly, the minimal sum of products (MSOP) of f is not always obtainable by finding the MSOP of h1 and h2 and applying the law of distributivity. However, a special class of functions called orthodox functions, introduced by Sasao and Butler [1], do have this property. This thesis focuses on orthodox functions, and the remaining non-orthodox functions. It is shown how to build up orthodox functions from orthodox functions on fewer variables. An algorithm is presented for generating families of non-orthodox functions. A test program is developed to test the results of the proposed algorithm and also other programs are developed to conduct experiments with both orthodox and non-orthodox functions. Results are presented that represent the first steps toward completely characterizing bi-decomposable functions that can be efficiently implemented.
36
Matte, Dominique. "Effet magnétocalorique dans des couches minces de doubles pérovskites ferromagnétiques". Mémoire, Université de Sherbrooke, 2014. http://hdl.handle.net/11143/6005.
Abstract (sommario):
La réfrigération magnétique est une alternative verte et théoriquement plus efficace que les systèmes de refroidissement classiques utilisant des cycles de détente/compression de gaz nocifs pour l'environnement comme les CFC et les HCFC. Malheureusement, les meilleurs matériaux utilisés actuellement dans les prototypes de réfrigération magnétique sont très dispendieux (5000$/kg pour le Gd) ce qui limite leur utilisation. La découverte de l'effet magnétocalorique géant en 1997 près de la température ambiante a fait exploser le nombre de publications dans le domaine. La recherche du matériau idéal était lancée. Les principales caractéristiques recherchées sont un grand effet magnétocalorique et une grande capacité réfrigérante. L'effet magnétocalorique correspond au changement d'entropie lors de l'application d'un champ magnétique. Elle est importante près des transitions magnétiques. Parmi les familles de matériaux étudiées pour leur effet magnétocalorique, on retrouve les manganites. Avec des structures cristallines apparentées, le La[indice inférieur]2NiMnO[indice inférieur]6 (LNMO) et le Pr[indice inférieur]2NiMnO[indice inférieur]6 (PNMO), des doubles pérovskites, possèdent des transitions magnétiques légèrement sous la température ambiante, soit 280 K et 212 K. De plus, le caractère isolant, la stabilité et le faible coût de ces matériaux leur procurent un net avantage pour leur intégration dans des systèmes de réfrigération magnétique.
Dans ce mémoire, la croissance par ablation laser pulsé de couches minces de doubles pérovskites (La[indice inférieur]2NiMnO[indice inférieur]6, Pr[indice inférieur]2NiMnO[indice inférieur]6) et d'hétérostructures de ces composés a été effectuée. Une caractérisation de la structure des échantillons à l'aide de la diffraction des rayons X a permis d'analyser les variations des paramètres de réseau en plan et hors plan en fonction de la température et de la pression d'oxygène lors de la croissance. La texture des couches a également été mesurée. La structure des échantillons a pu être mise en relation avec les propriétés magnétiques des matériaux. La variation de pression d'oxygène lors de la croissance permet de contrôler la proportion des phases ordonnée et désordonnée magnétiquement dans les échantillons de La[indice inférieur]2NiMnO[indice inférieur]6. L'aimantation à saturation ainsi que les températures de transition des phases ordonnée et désordonnée du LNMO sont obtenues à l'aide de mesures d'aimantation en fonction du champ magnétique et en fonction de la température respectivement.
L'effet magnétocalorique a été mesuré sur tous les échantillons pour des gammes de températures allant de 10 K à 320 K. La variation d'entropie maximale de 2,1 J/kgK pour un champ magnétique de 0-7T est obtenue pour l'échantillon à 300 mTorr. Par contre, la présence de la phase désordonnée dans certains échantillons élargit le pic de variation d'entropie en fonction de la température augmentant ainsi la capacité réfrigérante de l'échantillon. La capacité réfrigérante est alors comparable à celle du Gd[indice inférieur]5Ge[indice inférieur]2Si[indice inférieur]2. De plus, une variation d'entropie en forme de plateau sur une très large gamme de température (55 K à 298 K) maximise l'efficacité des cycles thermodynamiques. Un plateau s'étalant sur une aussi grande gamme de température n'avait jamais encore été observé. Une autre technique pour élargir le pic de variation d'entropie est de combiner deux matériaux possédant des transitions magnétiques rapprochées en température. Une bicouche de LNMO/PNMO et une tricouche de LNMO/LPNMO(LaPrNiMnO[indice inférieur]6)/PNMO ont donc été déposées. Un plateau de variation d'entropie a été obtenue sur une gamme de température allant de 152 K à 298 K. Par contre, des problèmes dans la croissance du LPNMO ont nui au magnétisme et réduit grandement l'effet magnétocalorique. La faible aimantation rémanente, le faible champ coercitif et la nature isolante des échantillons leurs procurent également un avantage pour une application dans un système de réfrigération magnétique.
37
Delgado, Carina Fernandes. "Modelação numérica de colunas mistas aço-betão parcialmente betonadas". Master's thesis, Faculdade de Ciências e Tecnologia, 2011. http://hdl.handle.net/10362/6005.
Abstract (sommario):
Dissertação para obtenção do grau de Mestre em Engenharia Civil Perfil de EstruturasNa presente Dissertação estuda-se o comportamento de colunas mistas aço-betão parcialmente betonadas. Para efeitos de modelação numérica recorre-se ao Método dos Elementos Finitos,utilizando o programa Ansys. São efectuados dois exemplos de validação e um pequeno estudo paramétrico, composto por quatro modelos com dois tipos de perfis metálicos (IPE e HEA). Comparam-se os resultados obtidos com o Método Simplificado e o Método Geral do Eurocódigo 4, investigando a influência das imperfeições, dos coeficientes intervenientes e da lei constitutiva do betão. Os resultados do estudo permitem extrair conclusões e recomendações quanto à aplicação das disposições regulamentares.
38
Ramírez, Aramburú Juan Raúl. "Niveles léxico y semántico y comprensión lectora en alumnos del 3er grado de instituciones educativas públicas de San Juan de Lurigancho". Master's thesis, Universidad Nacional Mayor de San Marcos, 2017. https://hdl.handle.net/20.500.12672/6005.
Abstract (sommario):
Aborda la comprensión lectora desde una perspectiva cognitiva, ya que este modelo, es el que mejor explica este complicado proceso, teniendo en cuenta que esta variable se ve influida de manera determinante por los conocimientos y experiencias previas del lector. Y es en este sentido, que el presente estudio busca establecer si existe relación entre la comprensión lectora y los niveles léxico y semántico.Tesis
39
Machado, Carlos Roberto da Silva. "Estado, política e gestão na/da educação em Porto Alegre : 1989-2004 : avanços e limites na produção da democracia sem fim". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2005. http://hdl.handle.net/10183/6005.
Abstract (sommario):
Esta tese fundamenta-se na descrição e interpretação das políticas e da gestão do ensino público desenvolvido em Porto Alegre durante os 16 anos (1989-2004) em que o PT- Partido dos Trabalhadores, através da Administração Popular, governou a cidade, tendo como problemática os avanços, os limites e as contribuições dessa experiência na produção de um “outro mundo possível”. O referencial teórico, fundamentado em autores do campo da política, sociologia, da educação e de teorias críticas de outros campos do conhecimento, como Karl Marx, Henri Lefebvre, Immanuel Wallerstein, Boaventura de Sousa Santos e Stephen Stoer, é apresentado nos 3 primeiros capítulos. O mesmo desloca-se do mais global e abstrato, da globalização econômica, política e social, inserindo nela a discussão dos conceitos Estado, de gestão (gerir, surfar e pilotar), de política (polity, politics e policy) e as reconfigurações dos sistemas de ensino (STOER, 2004) na transição paradigmática (SANTOS, 1999) e da crise do sistema-mundo (WALLERSTEIN, 2005), para o mais cotidiano (LEFEBVRE, 1973, 1991) das relações sociais e educativas na cidade. Chegando a este ponto, se verificou como estabeleceram as relações da gestora da educação em Porto Alegre (a Secretaria Municipal de Educação) no sistema municipal de ensino, em particular, na sua relação com as escolas e professores, no processo de implementação das políticas educativas durante os 16 anos em que o Partido dos Trabalhadores esteve à frente da Prefeitura Municipal da cidade. Na parte empírica do estudo, capítulos 4 ao 8, apresento e discuto o que o PT, em seus documentos nacionais, percebia e qualificava como educação no contexto de nosso país ao longo dos anos oitenta e noventa, como pano de fundo e paralelo ao desenvolvido em Porto Alegre através da SMED. Detalho manifestações de dirigentes da educação e do governo municipal, das atividades de cada gestão (1989-2004) e das Leis encaminhadas pelo Executivo e/ou vereadores como as que criaram o Conselho Municipal de Educação, os Conselhos Escolares, as Eleição de Diretores e o Sistema Municipal de Ensino. Apresento manifestações das escolas e dos professores e alunos, publicadas em âmbito acadêmico. Portanto, a partir do referencial teórico (dialético-histórico-espacial, HARVEY, 2004) que articulou o descritivo, o analítico-regressivo e o histórico-genético (LEFEBVRE, 1984), na descrição, sistematização e interpretação do material empírico (políticas, documentos, panfletos, programas do PT; mais Leis, relatórios de gestão, manifestações de dirigentes da SMED; teses, dissertações, pesquisas e artigos de pesquisadores da UFRGS), aponto os avanços, limites e contradições revelados na produção da democracia sem fim (SANTOS, 1998, 2005), desta experiência contra-hegemônica . Disto, a tese: forças políticas contra-hegemônicas ao sistema capitalista em que vivemos, ao ‘ocuparem espaços de poder’, podem avançar no desenvolvimento de políticas alternativas àquele, bem como na produção de novas relações sociais. Neste sentido, as escolas, professores, comunidades escolares e movimentos sociais podem se tornar sujeitos de suas próprias ações e obra educativa, na relação com o Estado/governo, ainda que o Estado e suas instituições estejam circunscritos a regras legais, normas e procedimentos e práticas sociais a grupos vinculados ao status quo e ao establishment. Isto depende da forma como as políticas, os conteúdos e as formas de implementação são geridas. Agindo assim, constrói-se um Estado como novíssimo movimento social (SANTOS, 1998, 2005), para o qual, a experiência de gestão da e na educação municipal de Porto Alegre, pelo PT e partidos de esquerda por 16 anos, aportaram contribuições significativas para a efetivação de um “outro mundo possível”, em alternativa ao que vivemos.
40
Roberts, Riyaadh. "A morphologic and immunohistochemical analysis of gastric adenocarcinoma with regard to the presence of E-cadherin and localisation of β-catenin staining". Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/6005.
41
Teles, Bruno Mourão. "Mychannel: um canal personalizado integrado num sistema de IPTV". Master's thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/6005.
Abstract (sommario):
Mestrado em Comunicação MultimédiaO presente trabalho surge no âmbito de um projeto de Mestrado em Comunicação Multimédia na Universidade de Aveiro. Este estudo tem como principal objetivo a conceção de um modelo de aplicação interativa de canais personalizados para um serviço de televisão digital, nomeadamente suportado em IPTV. Este modelo foi alvo de desenvolvimento e implementação parcial num protótipo, que simula a aplicação interativa na televisão. O modelo da aplicação MyChannel permite que os seus utilizadores possam, a partir da sua televisão, criar e partilhar canais pessoais. Os conteúdos audiovisuais, que integram o alinhamento escolhido, podem ser provenientes da web; de canais de televisão digital; ou criados pelo próprio utilizador, através de uma webcam. Este protótipo foi alvo de uma avaliação, que contou com a participação de dois grupos de participantes com níveis de literacia tecnológica diferentes. Como resultado, recolheu-se um conjunto de dados bastante relevante para a identificação das melhores soluções a adaptar, para uma aplicação em IPTV com características semelhantes ao protótipo desenvolvido, bem como para averiguar o nível de satisfação do protótipo entre potenciais utilizadores. Através dos resultados obtidos é possível concluir que o protótipo agrada aos diferentes tipos de utilizadores quer em termos funcionais quer em termos de interação. Com base no estudo desenvolvido, é de esperar que um modelo de canais personalizados, semelhante ao protótipo desenvolvido nesta investigação ao nível das caraterísticas e funcionalidades, seja uma mais-valia para as soluções de TV Interativa.
This work arises within a project of a Master’s Degree in Multimedia Communication at the University of Aveiro. This study has as main objective the conception of a model for an interactive application of custom channels to an IPTV service. This model was subjected to a development and partial implementation of a prototype, which simulates the interactive television application. The application model MyChannel allows its users to, from their TV, create and share personal channels. The audiovisual content, integrating the chosen alignment, can be derived from the web; from channels of digital television; or created by the user, through a webcam. This prototype was subjected to an evaluation, which was attended by two groups of participants with different levels of technological literacy. As a result, was gathered a set of data highly relevant to identify the best solutions to adapt, for an IPTV application with similar characteristics to the prototype, and to ascertain the level of satisfaction among potential users of the prototype. Through the results obtained we can conclude that the prototype appeals to different users both in functional terms and in terms of interaction. Based on the study developed, it is expected that a model for custom channels, similar to the prototype developed in this investigation in terms of features and functionality, is a value-added solutions for Interactive TV.
42
Nayak, Ramnath. "Characterization of the role of adenovirus-5 (Ad-5) gene products E2A, E4ORF6 and VA RNA on adeno-associated virus type 5 (AAV5) transcription, translation and replication". Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/6005.
Abstract (sommario):
Thesis (Ph. D.)--University of Missouri-Columbia, 2007.The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Vita. "August 2007" Includes bibliographical references.
43
Le, Charles Tuan-Cong. "Angular memory effect and its interferometric applications in rough surface mean height profiling /". Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/6005.
44
Busayo, Emmanuel Tolulope. "Township spatial planning and climate change adaptation : a case of Mdantsane in Buffalo City Metropolitan Municipality". Thesis, University of Fort Hare, 2018. http://hdl.handle.net/10353/6005.
Abstract (sommario):
Spatial planning plays a significant role in enhancing climate change adaptation especially within an urban area. The alignment of spatial planning with climate change adaptation opens an opportunity to improve resilience in areas of high vulnerability and manage the unavoidable. This mini-dissertation examines township spatial planning and climate change adaptation in identifying potentialities for an integrated approach. Therefore, Mdantsane case study as one of the largest townships in South Africa was explored as a unique landscape with reminiscent of apartheid to improve the people’s climate change adaptation under urban poverty, lack of basic facilities and other environmental challenges. In keeping with a case study design, mixed methods were adopted in data collection and analysis making use of GIS and remote sensing techniques alongside pretested open and close-ended questionnaires. The study reveals that townships are extremely susceptible to the impacts of climate change due to their built-up and natural environment set up as well as the existing interrelations. Based on this study major findings, Mdantsane built up cover in year 1996 was 269.496 km2 followed by vegetation area of about 142.272 km2; the area covered by water body was 31.554 km2 while other land surface features cover about 317.277 km2. It was revealed that there was a drastic change in vegetation cover between 1996 and 2016, where built up cover area increased to 375.552 km2 and vegetation cover is 119.277 km2 while water body and other land features cover was about 29.889 and 235.881 km2 respectively. Furthermore, 66 percent of the respondents agreed that agriculture is the predominant land use activity been carried out in the study area, respondents at 74.4 percent affirmed that solid waste and sanitation problems are environmental issues which can lead to climate change over time as a result of the burning of garbage. It is worthy to note that 70 percent of the entire respondents have not participated in any spatial planning process in the past. Thus, comprehensive integration of spatial planning is essential for townships proofing, health, wellbeing and resilience. To this end, the five P’s model (Policy, Public participation, Programme implementation, Political will and Programme monitoring) integration was proposed to seek strategic intervention in sustaining adaptation of local residents to climate change in the future with specific focus to reduce climate and environmental risks in Mdantsane Township.
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Maisel, Max Emanuel. "The Relationship Between Dispositional Mindfulness Characteristics and Anxiety in High Functioning Adults Diagnosed with Autism Spectrum Disorder". BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6005.
Abstract (sommario):
Adults with autism spectrum disorder (ASD) experience elevated levels of anxiety and worry compared to neurotypical people. However, there is a dearth of extant research on effective interventions for comorbid anxiety and worry in this population. Mindfulness, which is often defined as paying attention to the present moment in a nonjudgmental manner, has been shown to be a propitious treatment for anxiety, worry, and other psychological ailments in neurotypical people. However, in a relatively new area of study, evidence has been growing which suggests mindfulness can also be effective in helping people with ASD cope with anxiety and worry. The current study had two major aims: 1) to see if a group of high functioning young adults with ASD (n=23) had inherently less dispositional mindfulness abilities than a neurotypical group (n=22) and 2) to see if mindfulness affected trait anxiety and worry differently for the ASD group than for the control group. Results suggested that adults with ASD were less able than neurotypical adults to effectively label and describe their internal experiences, to act with awareness in the present moment, and to allow aversive inner experiences to come and go without struggle. The results also suggested that the one powerful predictor of anxiety and worry in people with ASD was nonreactivity to inner experiences. However, there were three salient predictors of anxiety for neurotypical people: nonreactivity to inner experience, acting with awareness in the present moment, and nonjudging of thoughts and feelings. In the current study, none of the mindfulness facets predicted less worry in the neurotypical group. These results have implications for the development and implementation of mindfulness interventions to more effectively treat anxiety and worry in people with ASD.
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Thomas, Holly Dominique. "A computational investigation of patient factors contributing to contact stress abnormalities in the dysplastic hip joint". Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/6005.
Abstract (sommario):
Acetabular dysplasia, a deformity characterized by the presence of a shallow acetabulum inadequately covering the femoral head, alters force transfer through a joint, causing early-onset hip pain and degeneration. Dysplasia is often treated surgically with a periacetabular osteotomy (PAO), which permits multiplanar acetabular reorientation to stabilize the joint and alleviate pain. PAO alters joint mechanics, including contact stress, which can be assessed via computational methods.
This work sought to enhance a discrete element analysis (DEA) model for assessment of the dysplastic hip. The primary focus was on understanding how the gait parameters used to load a DEA model affect the computed contact stress. Several additional studies focused on understanding specific anatomic and demographic factors contributing to the contact stress evaluation were also performed.
Implementation of a dysplastic gait pattern to load the DEA models resulted in more cases with improved contact stress and clinical measures after PAO, which concurred with clinical findings. Patient demographics and acetabular and femoral geometry all affected the computed contact stress distributions, emphasizing the importance of proper cohort categorization prior to interpretation of DEA-calculated contact stress. These results indicate that accurate modeling of the particular deformity in this cohort likely requires evaluation of both functional and anatomic differences.
These studies improve the ability to realistically model and characterize dysplastic hip contact mechanics. DEA is a valuable tool for assessing contact stress in dysplastic joints, which has the potential to improve patient outcomes by guiding clinicians in non-operative treatment, pre-operative PAO planning, and evaluating intraoperative success.
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Sharpnack, Jim D. "The Efficacy of Group Bereavement Interventions: An Integrative Review of the Research Literature". DigitalCommons@USU, 2000. https://digitalcommons.usu.edu/etd/6005.
Abstract (sommario):
This study involves a meta-analysis of the extant English language literature reporting studies of the effectiveness of bereavement therapeutic interventions. Twenty-six studies (20 adult studies; 6 child studies) were located and served as the database for the current meta-analytic study. Questions asked of the studies in this meta-analysis included: Describe background variables of subjects seeking bereavement group interventions. Describe leader variables of persons leading bereavement group interventions. Describe intervention variables in bereavement group interventions.
The major finding of the meta-analysis was that children and adult experimental subjects benefitted from the grief interventions in comparison to their control counterparts. The ratio of female to male subjects was 4: 1. The majority of the subjects were Caucasians. The most common reported cause of death was due to disease. The most common relationship loss was the death of a spouse. Protestants and Catholics were the most common reported religious groups.
The leadership of most studies consisted of either one or two leaders. Most leaders were females, and only Caucasian leaders were reported. The majority of leaders were students, and most leaders reported having a master's degree as their terminal degree. Leaders with and without previous bereavement group experience occurred at about the same rates.
A pretest-posttest control group design was the most common study design, but only five studies used random assignment. The mean number of treatment weeks was 7.8, and the mean number of treatment hours was 14.8.
Group therapy was used in 21 studies . One examined study utilized self-help treatment; two studies used education as the intervention format. Six studies were coded as "other'' types of interventions. The most common evaluation tool was a depression measure. Effect size information suggested that bereaved subjects participating in group interventions improved in comparison to control subjects.
This study identified a number of problems with past bereavement research that included the following issues: small groups, poor choices of evaluation tools, use of a pre/posttest design, lack of random assignment when using control groups, lack of follow-up data, eclectic theoretical orientations used in treatment, lack of information reported in studies, and heterogeneous groups making it difficult to draw conclusions about specific groups.
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Behler, Anna Maria C. "When Empathy Only Goes So Far: Development of a Trait Parochial Empathy Scale". VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/6005.
Abstract (sommario):
Empathy, the ability to feel and/or understand another’s emotional state, plays a significant role in interpersonal interactions, mitigating hostility and enhancing affiliation and helping. However, empathy also biases interpersonal reactions. For example, at the group level empathy can become amplified towards members of their ingroup and blunted towards individuals in outgroups, a term called parochial empathy. Currently, no validated measures of parochial empathy at the dispositional level exist, and development of such a scale would be important to understanding the role of group-based emotions in prejudice and discrimination against outgroups. I conducted five studies to develop and validate a self-report Trait Parochial Empathy Scale (TPES) that could measure tendencies to respond with parochial empathy across any set of group membership categories. Study 1 assessed the factor structure of the TPES through exploratory and confirmatory factor analyses while Study 2 attempted to replicate the Study 1 factor structure and assess concurrent and divergent validity of the TPES using attitudinal measures. Study 3 assessed the temporal consistency of the TPES. Study 4 examined whether the TPES could be flexibly used across a variety of groups by assessing its relation to various outcomes across different ingroup and outgroup combinations. Finally, Study 5 assessed the ability of the TPES to predict in vivo behavior.
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Curry, Andrea Nicole. "The Evaluation of the Relationship between Racial Health Disparities and the Patient-Provider Relationship". ScholarWorks, 2018. https://scholarworks.waldenu.edu/dissertations/6005.
Abstract (sommario):
African Americans are adversely affected by health disparities due to the complexities of the patient-provider relationship. The behavioral model of health services was used as the theoretical framework to understand how individuals make healthcare utilization decisions. The purpose of the research was to evaluate how the patient-provider relationship influences inconsistent doctor visits by African American patients despite the prevalence of chronic conditions. 45 African Americans located in Shelby County, Tennessee were included in this study. A cross-sectional quantitative design was used to collect the data via an online survey. The 45 collected responses were analyzed by performing multiple linear regression, Pearson correlation, and Cronbach's ï?¡. Results of the analyses were statistically significant in proving that education level, income, gender of African Americans, and having health insurance affect the patient-provider relationship. It was determined by the statistically significant results that the patient-provider relationship had an effect on African American patients' decision to seek healthcare services and medication compliance and follow-up medical care. This information may guide the conversation within the Shelby County, Tennessee African American community regarding what role the patient-provider relationship has when addressing health disparities among African Americans.
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Pishchala, Katsiaryna <1984>. "Innovazione e tradizione nelle Istituzioni: osservazione partecipante dell'inserimento della musicoterapia nei contesti socio-sanitari dell'entroterra veneto". Master's Degree Thesis, Università Ca' Foscari Venezia, 2015. http://hdl.handle.net/10579/6005.
Abstract (sommario):
Questo lavoro di ricerca è orientato all'analisi dei processi induttivi presenti
all'interno dell'osservazione partecipante, che è stata scelta come forma
di monitoraggio dell'inserimento in due case di riposo per anziani
nell'entroterra veneto della terapia musicoterapica ad opera di specialisti del settore.
Per seguirne il processo si fornisce una base preparatoria costituita
da un ampio tessuto nozionistico (prima parte), che si completa
nella relazione puntuale delle esperienze vissute in prima persona
(seconda parte), in un lavoro complessivo sovente trascurato dagli studi precedenti.