Matematinis dantų lanko modeliavimas leidžia įvertinti funkcinę tam tikro paciento dantų lanko būklę ir analizuoti racionalius gydymo variantus. Dabar mechaninė žmogaus kramtomosios sistemos analizė sujungia daugiau anatominių detalių ir todėl žmogui gali atrodyti, jog pagrindinės mechaninės problemos yra išsprendžiamos. Deja, tai nėra tiesa. Viena iš pagrindinių problemų susieta su raumenų stiprinimu - ar turime mes aktyvinti savo kramtymo raumenis ir kodėl. Pradžioje ištyrėme probleminę sritį ir iki šiol gautus pasiekimus žmogaus kramtymo sistemos trimačiame modeliavime. Vėliau parinkome tinkamą programinę įrangą bei susipažinome su jos galimybėmis. Tada įvairių bandymų metu nustatėme kaip įvairios naudojamų programų funkcijos ir jų parametrai įtakoja duomenų apdorojimą ir remdamiesi šiais duomenimis sudarėme žmogaus kramtymo sistemos trimačio modeliavimo algoritmą. Pasinaudodami juo sukūrėme trimatį paciento kramtymo sistemos modelį. Šio darbo tikslas buvo pasirinkti įrankius bei sukurti naujus, kurie gali pagelbėti sudarant trimatį modelį iš tomografijos būdu gaut�� vaizdų. Turėjome atsižvelgti į taisykles ir apribojimus. Pagrindinis šio darbo rezultatas yra makro komanda sukurta „Image-Pro Plus“ programai, kuri yra naudojama koordinačių gavimui iš tomografijos būdu gautų vaizdų. Buvo daryti eksperimentai skirti apibrėžti faktoriams, įtakojantiems sukuriamo modelio kokybę. / Relationships between muscle tensions, jaw motions, bite and joint forces, and craniofacial morphology are not fully understood, and critical information is often difficult or impossible to obtain in experiments on living humans. The inaccessibility of the mandible and its related structures is a major obstacle to measure their internal forces and stresses, and understanding their effects. Computer modeling offers an alternative method for doing this. Despite its limitations, modeling appears to provide a useful conceptual framework for developing hypotheses regarding the role of stresses during human masticatory system function. Three-dimensional model of main elements of masticatory system was created from computed tomography images. Later this model will be improved with physical characteristics. The objective of this work is to select the set of tools and create the new ones which could be used to acquire the three dimensional model from tomography images. The rules and restrictions of using medical hardware should be taken into account. The main outcome of this work is a macro-command created for the “Image Pro Plus”, which is used to capture object coordinates from the tomography pictures. Experiments were made to define the factors which are influencing the quality of the created model.

Basal cell carcinoma is a form of a non-melanoma skin tumour, that commonly forms over the sun exposed regions of the head and neck. Investigation of the rate of occurrence at different sites on face and neck shows considerable variation from site to site. The inner canthus has a disproportionate number when compared to more exposed sites. The eye brow ridge, cheek bone and nose limit the field of view of the inner canthus, thus it is expected to receive less radiation than other more exposed regions. To explain the disproportionate rate, it is hypothesised that a portion of radiation incident onto the eye is reflected to the inner canthus. The aim of this thesis is to investigate the contribution that the radiation reflected off the surface of the eye makes to the overall dose on the inner canthus. The inter reflections between the eye and inner canthus were studied through the use of the ray tracing program Zemax. Zemax was used to trace rays in a non sequential mode incident onto a model eye and periorbital region. To obtain the models of the eye and periorbital region, both magnetic resonance imaging and a casting process was investigated, with the later being superior for our uses. With the model obtained, it was used in a series of three dimensional ray tracing programs. On a macroscopic scale there is a small increase in the irradiance on the inner canthus (2 % over a 1 cm2 area). Peaks of high irradiance (19 % increase in irradiance above direct irradiance) were discovered over the surface when the detector was divided into 200 mm elements. It was concluded that these increases above the direct irradiance in these small regions, increases the possibility of the occurrence of a Basal cell carcinoma. Individual facial geometry, will greatly effect the location and size of these peaks and as a result an experimental method to measure the dose distribution across the inner canthus was proposed. Initially it was planned to use polysulphone film to measure the erythemal dose on the inner canthus. Results from the modelling indicated that any measurements made had to be at a high spatial resolution. Polysulphone film was found to be inadequate for this, due to its large uncertainties. An alternative method was investigated so that a population study could be performed in future studies using visible radiation and high dynamic range images gave a simple and effective clinical assessment tool. The high dynamic range images showed hot spots in the irradiance across the inner canthus agreeing with the model. The small spots of high relative irradiance may not be the only reason for the increased rate in this region. Greater skin sensitivity and absence of sun screen use at this site are other possibilities. It is believed however that the irradiance distribution across the inner canthus on a microscopic scale goes a long way to increasing the risk for certain people.

Submitted by Isaac Francisco de Souza Dias (isaac.souzadias@ufpe.br) on 2016-03-02T18:33:06Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DISSERTAÇÃO George de Almeida Andrade.pdf: 1069618 bytes, checksum: 836da70d27a97e37f383643dff840b32 (MD5) / Made available in DSpace on 2016-03-02T18:33:06Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DISSERTAÇÃO George de Almeida Andrade.pdf: 1069618 bytes, checksum: 836da70d27a97e37f383643dff840b32 (MD5) Previous issue date: 2015-01-29 / A presente dissertação tem como objetivo principal analisar como os componentes e antecedentes de comprometimento organizacional são percebidos pelos servidores técnico-administrativos do Centro Acadêmico do Agreste, da Universidade Federal de Pernambuco. Para tal propósito, procurou-se identificar como são percebidos os níveis das dimensões afetiva, instrumental e normativa e os principais antecedentes de comprometimento organizacional sob a análise de importância e percepção na realidade laboral. O estudo teve como lócus de pesquisa o Centro Acadêmico do Agreste da UFPE, localizado no município de Caruaru, na região do agreste do estado. A população do estudo foi de setenta e cinco servidores, sendo a amostra da investigação composta por cinquenta e nove participantes. Realizou-se um levantamento teórico acerca do tema envolvido no problema de pesquisa, o comprometimento organizacional, tendo os seguintes focos de análise: o comprometimento em si, suas origens, bases, dimensionalidades e seus antecedentes. Os dados da pesquisa foram coletados por meio de um questionário composto por três partes: a primeira apresentava o modelo tridimensional de comprometimento organizacional desenvolvido por Meyer e Allen (1991; 1997). A segunda parte apresentava o modelo de antecedentes de comprometimento desenvolvido por Medeiros (2003). Os itens foram analisados em escala do tipo Likert de cinco pontos sob duas óticas distintas: a importância e a percepção na realidade laboral. A terceira parte foi composta por perguntas sociodemográficas e funcionais. Para análise dos resultados utilizaram-se procedimentos estatísticos descritivos simples (frequências, médias e desvios-padrão). Os resultados revelaram um moderado grau de comprometimento geral dos respondentes (60%) e um relevante grau de não-comprometimento na dimensão normativa (48%) e na instrumental (44%). Acerca do modelo de Meyer e Allen (1991; 1997), percebeu-se que, na dimensão afetiva, todos os itens foram mais bem pontuados na análise de importância do que na percepção real; já na dimensão instrumental, todos os itens apresentaram maiores pontuações na percepção de realidade. E por fim, a dimensão normativa apresentou valores bem aproximados entre importância e percepção no trabalho. Os resultados do modelo de Medeiros (2003) apontaram que, dos 28 itens estudados, 26 foram mais bem avaliados na escala de importância do que na escala de percepção no trabalho. Pode-se concluir que, para a amostra estudada, os servidores da instituição consideram como importante ou muito importante os itens de comprometimento afetivo, e como pouco importante ou importante os itens das dimensões instrumental e normativa. Na realidade laboral, os servidores estão mais comprometidos na dimensão afetiva do que nas dimensões instrumental e normativa. Acerca dos antecedentes de comprometimento, foi percebida uma alta diferença entre os escores de importância e percepção no trabalho, principalmente nas dimensões de políticas de recursos humanos e valores da organização. / This thesis aims to analyze how the components and antecedents of organizational commitment are perceived by technical and administrative staff of the Centro Acadêmico do Agreste, Universidade Federal de Pernambuco. For this purpose, it was identified how they perceived levels of affective, instrumental and normative dimensions of organizational commitment and the main antecedents, in importance analysis and insight into working reality one. The study was researched at Centro Acadêmico do Agreste, UFPE, located in Caruaru, agreste region of the state. The study population was seventy-five servers, and the sample of the research consists of fifty-nine participants. It was made a theoretical survey on the subject involved on the research problem, organizational commitment, with the following focuses: the commitment itself, its origins, bases, dimensionalities and antecedents. Survey data were collected via a questionnaire consisting of three parts. The first one featured the three-dimensional model of organizational commitment developed by Meyer and Allen (1991; 1997). The second part presented the model of antecedents of commitment developed by Medeiros (2003). The items were analyzed in the Likert scale of five points on two distinct points of view: the importance and perceived reality in the workplace. The third part consisted of sociodemographic and functional questions. For data analysis it was used descriptive statistical procedures simple (frequencies, means and standard deviations). The results show a moderate degree of commitment overall respondents (60%) and a significant degree of non-commitment in the normative dimension (48%) and instrumental (44%). About the Meyer and Allen model (1991; 1997), it was realized that the affective dimension, all items were better scorers in the analysis of importance than the actual perception; on the contrary the instrumental dimension, all items had higher scores in perceived reality. Finally, the normative dimension presented well approximated between importance and perceived work values. The results of the Medeiros model (2003) showed that, of the 28 items studied, 26 were best evaluated on the scale of importance than the scale of perception at work. At the conclusion, for the studied sample, the servers of the institution consider it as important or very important items of affective commitment, and how minor and major items of instrumental and normative dimensions. At the labor reality, the servers are more committed in the affective dimension than instrumental and normative ones. About the antecedents of commitment is high perceived difference between the scores of importance and perception at work, particularly in the dimensions of human resource practices and values of the organization.

This diploma thesis concerns in the real measurement of Roman cellar areas in Prague 1 – Lesser Town, Karmelitská Street. A surveying structure for detailed area geodetic measurement is built up in given part of town. The surveying structure is connected to the binding reference systems – the S-JTSK coordinate system and Bpv altitude system. A detailed measurement is carried out in this cellar areas and recorded data are processed in a suitable programme. A three-dimensional model and drawing documentation – a ground plan and sections in required areas are drawn up according to this data. The ground plan of cellar areas in its drawing documentation is in 1:50 scale and the sections in 1:50 scale. Thesis outcomes will serve to document the current conditions of Roman cellar areas.

The present study aims to investigate how different refugee groups are portrayed in the Swedish news media. The study uses critical discourse analysis as a methodological and theoretical framework to analyze Aftonbladet and Dagens Nyheter's representation of Syrian and Ukrainian refugees in their editorials. Using Fairclough's three-dimensional model as a tool, the study has analyzed the language used in the articles through text, discourse, and socio-cultural practice. The focus of the study lies in analyzing the texts, but it also brings discussions about how the first dimension (text) affects the second (discursive practice) and third (sociocultural practice). The study's results suggest that there is a difference in how Syrian and Ukrainian refugees are portrayed in Aftonbladet and Dagens Nyheter. The results show that Syrian refugees are portrayed as a burden to a greater extent than Ukrainian refugees. Furthermore, the analysis of discursive practice indicates that the representation of both refugee groups is consistent with the refugee policy discourse of the respective period. Finally, socio-cultural practice shows that differences in language and categorization regarding refugee groups can contribute to the creation of "we" and "them" even between refugee groups. / Föreliggande studie syftar till att undersöka hur olika flyktinggrupper framställs i svensk nyhetsmedia. Studien använder kritisk diskursanalys som metodiskt och teoretiskt ramverk för att analysera Aftonbladets och Dagens Nyheters representation av syriska och ukrainska flyktingar i sina ledarartiklar. Med Faircloughs tredimensionella modell som verktyg har studien analyserat språkbruk genom text, diskurs och sociokulturell praktik. Studiens fokus ligger på att analysera texterna, men den tillför även diskussioner kring hur den första dimensionen (text) påverkar den andra (diskursiv praktik) och tredje (sociokulturell praktik).  Studiens resultat antyder att det finns en skillnad i hur syriska och ukrainska flyktingar porträtteras i Aftonbladet och Dagens Nyheter. Resultaten påvisar att syriska flyktingar framställs som en belastning i högre utsträckning än ukrainska flyktingar. Vidare indikerar analysen av diskursiv praktik att framställningen av båda flyktinggrupper överensstämmer med den flyktingpolitiska diskursen för respektive period. Slutligen, visar den sociokulturella praktiken att skillnader i språk och kategoriseringar gällande flyktinggrupper kan bidra till skapandet av “vi” och “dem”  även mellan flyktinggrupper.

This paper examines how three prominent news outlets in the United States: specifically CNN, Reuters and Fox News, depict the death of Mahsa Amini in Iran and the protests that would follow. The purpose of this study is to examine whether or not political ideology affects news reporting done by these online news outlets. Subsequently, the aim is to determine how that news reporting affects readers and in turn, influences public opinion and cultural ideology. This is done by employing Fairclough’s three-dimensional model, a framework used in critical discourse analysis to examine three dimensions within communicative events. To complete this analysis, historical context, political context, and the news genres’ limitations and expectations are taken into account. This paper finds that political ideology does impact the production of news headlines in terms of lexical choices made both to emphasize the focal point of different news sources, as well as where they stem from and what narrative they enforce. Finally, empirical evidence to support these claims is presented and interpreted.

This qualitative study contains a critical discourse analysis of media's portrayal of children's consumption of advanced skincare. The purpose of this study is to analyze how the discussion about children's skincare consumption is portrayed in the news media, and identify discursive patterns and themes based on the textual content of the articles. The analysis concerns eight articles from varied news media, which has been analyzed based on Norman Fairclough's three-dimensional model. To carry out this analysis, the study is based on two questions. These are about how children's skincare consumption is portrayed in news articles, as well as which patterns we can identify in how children's skincare consumption is represented in media.  The conclusions we can draw based on our critical discourse analysis is that the media presents this discussion as problematic, as we have been able to identify discursive themes that strengthen and clarify the content of the articles. We have also seen an interplay and recurring patterns in the material's textual content, where we can, among other things, identify the same words and structure in the articles. / Denna kvalitativa studie innehåller en kritisk diskursanalys om medias skildring gällande barns konsumtion av avancerad hudvård. Syftet med studien är att analysera hur diskussionen angående barns hudvårdskonsumtion framställs nyhetsmedia, samt identifiera diskursiva mönster och teman utifrån artiklarnas textinnehåll. Analysen berör åtta artiklar från varierade nyhetsmedier, som har analyserats utifrån Norman Fairclough’s tredimensionella modell. För att kunna genomföra denna analys har studien utgått ifrån två frågeställningar. Dessa handlar om hur barns hudvårdskonsumtion skildras i nyhetsartiklarna, samt vilka mönster vi kan identifiera i hur barns hudvårdskonsumtion framställs i media. De slutsatser vi kan dra utifrån vår kritiska diskursanalys är att media framställer denna diskussion som problematisk, då vi har kunnat identifierat diskursiva teman som stärker och tydliggör artiklarnas innehåll. Vi har även sett ett samspel och återkommande mönster i materialets textinnehåll, där vi bland annat kan identifiera samma ord och struktur i artiklarna.

Made available in DSpace on 2015-05-08T14:53:42Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1223967 bytes, checksum: e7ddc07e077e29ba4df142948034d2a8 (MD5) Previous issue date: 2010-06-14 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The constant technological evolution and the globalization phenomena have been aroused organizations to looking for both new ways to deal with the market and the new environmental business. Among these new ways of dealing with the market it is the Business Social Responsibility that is beginning to making part of the policy and companies principles. On this perspective, this study attempts to analyze in a general way how a company in the food sector, located in Ceará state, behaves itself with respect to the Business Social Responsibility principles through the stakeholders perception set who are directly and indirectly involved and have information about the company under analysis. The research was based on three-dimensional Carroll`s model (1979), which seeks to fully understand the essentials aspects of corporative social performance according to the dimensions of the categories of social responsibility (economic, legal, ethical and voluntary), the types of response behavior (reactive, defensive, accommodative and proactive), and the actions areas/company programs (consumption, environment, discrimination, product safety and security in the work). The work is classified as a case study of descriptive-exploratory character that through a qualitative and quantitative approach carried out through fields research, where were applied interviews with a semi-structured guide, evaluated through analysis of the information content, and questionnaires to the internal and external stakeholders that not take part in the company. The data were evaluated by using the STATATM program. The results showed that the internal stakeholders perceive that the company has operations predominantly in the economic responsibility field, especially in the administration and production employees view, indicating that the actions are focused on profit maximization. But, for the managers, stands up the legal responsibility, as well as for the external stakeholders like customers, community and suppliers. Now the consumers and partners emphasized that the company assumes financial and voluntary responsibility respectively, indicating that the company develops social actions that enhance the community quality life in its surroundings. In the behavior and response fields it can be observed in the point of view of three of the five external stakeholders types the predominance of proactive behavior (community, suppliers and partners), but for customers and consumers the company has accommodative behavior. For the internal stakeholders predominated the feeling that the activities are having developed as a means to obey the requirements, being, therefore, defensive. In relation to the actions/programs, it is perceived that was unanimous between all internal and external stakeholders, that for this company the product security is the basis of its performance in the food market. In a general way, the application of the methodology proposed by Carroll (1979) allowed to concluded that in the stakeholders perception the company do not have structured policies of RSE acting in a punctual manner through an Educational Institute, which develops activities specifically for capacity building. / A constante evolução tecnológica e a globalização têm despertado as organizações para uma procura intensa por novas formas de lidar com o mercado e com a nova conjuntura empresarial. Dentre essas novas formas de lidar com o mercado está a Responsabilidade Social Empresarial que está começando a fazer parte da política e dos princípios das empresas. Sobre essa perspectiva, esta pesquisa objetiva analisar como uma empresa do setor alimentício, localizada no estado do Ceará, se comporta quanto aos princípios da Responsabilidade Social Empresarial por meio da percepção do conjunto de stakeholders que direta e indiretamente estejam envolvidos e que possuam informações sobre a empresa em análise. A pesquisa baseou-se no modelo tridimensional de Carroll (1979), que busca compreender de forma integral os aspectos essenciais da performance social corporativa de acordo com as dimensões de categorias de Responsabilidade Social (econômica, legal, ética e voluntária); os tipos de comportamento de resposta (reativa, defensiva, acomodativa e pró-ativa); e as áreas de ações/programas da empresa (consumo, meio ambiente, discriminação, segurança do produto e segurança no trabalho). O trabalho classifica-se como estudo de caso de caráter descritivo-exploratório que por meio de uma abordagem quali-quantitativa realizada através de pesquisas de campo, aplicou-se entrevista com roteiro semi-estruturado, avaliadas através de análise de conteúdo das informações, e questionários a stakeholders internos e externos à empresa, analisados por meio do programa STATATM. Os resultados apontaram que os stakeholders internos vêem que a empresa possui atuação predominantemente no campo de responsabilidade econômica, principalmente na visão dos funcionários da administração e produção, evidenciando que as ações se voltam para a maximização de lucros. Mas para os gestores sobressai-se a responsabilidade legal, assim como também os stakeholders externos do tipo clientes, comunidade e fornecedores. Já os consumidores e parceiros salientam que a empresa assume responsabilidade econômica e voluntária respectivamente, denotando que a empresa desenvolve ações sociais que elevam a qualidade de vida da comunidade que fica ao seu entorno. No campo de comportamentos e respostas pode-se observar na visão de três dos cinco tipos de stakeholders externos a predominância de comportamento pró-ativo (comunidade, fornecedores e parceiros), mas para clientes e consumidores a empresa possui comportamento acomodativo. Para os stakeholders internos predominou que as atividades se desenvolvem como meio de obedecer às exigências, sendo, portanto, defensivo. Em relação às ações/programas, percebe-se que foi unânime entre todos os stakeholders internos e externos, que para essa empresa, a segurança do produto é a base de sua atuação no mercado de alimentos. De modo geral, a aplicação da metodologia de Carroll (1979) permitiu concluir que na percepção dos stakeholders a empresa não possui políticas estruturadas de RSE, atuando de forma pontual por meio de um Instituto Educacional, o qual desenvolve atividades especificamente de formação profissional.

The aim of this thesis is to scan the part of the interior and exterior of the Faculty of Electrical Engineering and Communication building using the FARO Focus3D X 130 scanner, and the creation of a 3D model in the WGS 84 system. Subsequently, methods, status and utilization research of this technology and point cloud processing software is provided. The collected data are processed in the SCENE. Three-dimensional model is designed using the Pointfuse and Microstation V8i programs. In the end, the registration accuracy of the scans and the resulting 3D model accuracy are evaluated.

Dans cette thèse, nous construisons un modèle de liaisons fortes tridimensionnel minimal pour les cuprates supraconducteurs monocouches à base de lanthane. Celui-ci prend en compte huit orbitales, dont deux d'entre elles impliquent les ions oxygène apicaux. L'optimisation des paramètres microscopiques permet de reproduire presque parfaitement la bande de conduction tridimensionnelle telle qu'elle a été obtenue à partir des calculs DFT. Nous discutons la façon dont chacun des paramètres entrant en jeu dans ce modèle multi-bandes influence la bande de conduction, et nous montrons que la forme particulière de sa dispersion contraint les valeurs des paramètres. Nous mettons alors en évidence que la détermination standard d'un modèle effectif à une bande au travers d'un traitement perturbatif converge lentement en raison de la valeur relativement faible du gap de transfert de charges. A ce stade, cela nous permet, en revanche, de lever le voile sur l'origine microscopique des amplitudes de saut des électrons au sein des plans et en-dehors des plans. Une approche alternative au calcul des paramètres microscopiques de saut du modèle effectif de liaisons fortes est présentée et mise à contribution. Il en résulte que l'accord avec la DFT est préservé à condition que les amplitudes de saut de plus longue portée soient conservées. Une comparaison avec les modèles existants est également effectuée. La surface de Fermi, mettant en exergue des domaines décalés qui alternent en taille et en forme, est comparée à l'expérience. De plus, la densité d'états du modèle est aussi calculée. Une analyse plus approfondie du modèle est réalisée au travers d'une étude en couplage faible des instabilités magnétiques. Les calculs sont effectués sur de grandes cellules et nous avons trouvé une compétition parmi plusieurs instabilités magnétiques tridimensionnelles dans la région d’intérêt du dopage en trous accessible expérimentalement. Bien qu'à notre connaissance cela ne semble pas avoir été évoqué expérimentalement, nous montrons à l'issue de notre étude, que la tendance du modèle à former des ondes de densité de spin incommensurables tridimensionnelles est la plus forte à proximité du dopage 1/8. / In this thesis, we construct a minimal three-dimensional tight-binding model for single-layer La-based cuprate superconductors. It entails eight orbitals, two of them involving apical oxygen ions. Parameter optimization allows to almost perfectly reproduce the three-dimensional conduction band as obtained from DFT. We discuss how each parameter entering this multiband model influences it, and show that the peculiar form of its dispersion severely constraints the parameter values. We then evidence that standard perturbative derivation of an effective one-band model is poorly converging because of the comparatively small value of the charge transfer gap. Yet, this allows us to unravel the microscopical origin of the in-plane and out-of-plane hopping amplitudes. An alternative approach to the computation of the tight-binding parameters of the effective model is presented and worked out. It results that the agreement with DFT is preserved provided longer-ranged hopping amplitudes are retained. A comparison with existing models is performed, too. The Fermi surface, showing staggered pieces alternating in size and shape, is compared to experiment. The density of states is calculated as well. The model is further analyzed through a weak coupling study of magnetic instabilities. It is performed on large clusters and competition between several three-dimensional magnetic instabilities in the hole-doping region of experimental interest is found. We show that the tendency to form a three-dimensional incommensurate spin density wave is strongest in the vicinity of 1/8 doping.