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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
161

Modelagem de percepção de humanos virtuais baseada em dados geométricos e ray-casting

Pletsch, Eliéser Lourega 30 May 2006 (has links)
Made available in DSpace on 2015-03-05T13:56:58Z (GMT). No. of bitstreams: 0 Previous issue date: 30 / Nenhuma / Este trabalho apresenta um modelo de percepção de dados não visíveis (por exemplo, olfativas e auditivas) para humanos virtuais baseado em informações puramente geométricas existentes em ambientes virtuais. Esta proposta procurou contextualizar vários tópicos de pesquisa no que diz respeito a agentes autônomos em ambientes virtuais e suas capacidades de percepção. Procurou-se, através da área da visão sintética, encontrar métodos que pudessem ser generalizados para que outros sentidos pudessem ser simulados. O objetivo principal deste modelo é possibilitar que o agente possa identificar diferentes ocorrências de eventos dentro de um ambiente virtual, no que diz respeito às informações não necessariamente visuais, como por exemplo, a presença de cheiros ou barulhos. Para o modelo, foram buscados métodos que proporcionem um bom desempenho computacional e que sejam facilmente generalizados e implementados de maneira a prover métodos de percepção a multidões de humanos virtuais / This work presents a perception data model which deals with not visible information (such as hearing and smelling). This model is based on geometric information that exists in the virtual environment. This proposal also identifies several research topics related to autonomous agents in virtual environments and their perception abilities. Investigations in synthetic vision area allows to find methods that could be generalized in order to be used for other sensors. Therefore, the main objective of this model is to allow to the agents the possibility of identifying different events, into a virtual environment, not necessarily visual data. For instance, the presence of smell and noise. In addition, we propose methods which aims to provide a good computational performance and which can be generalized and implemented in a way that they can provide the perception methods to virtual human beings.
162

Construction et perception de la part olfactive de l'expérience de nature : complémentarité des relations cognitives, écologiques et sensorielles de la nature / Construction and perception of the olfactory part of the experience of nature : complementarity of cognitive, ecological and sensory relations to nature

Truong, Minh-Xuan 27 September 2018 (has links)
L’humain moderne vit une transformation de son environnement et de son mode de vie qui impactent la façon dont il peut vivre des expériences de nature au quotidien. Or, ces expériences de nature sont d'une grande importance pour le bien-être et la santé des individus. Ce sont des phénomènes complexes, ancrés dans un contexte environnemental, mais aussi socio-culturel, qui reposent sur des composantes étroitement mêlées que sont les émotions, les souvenirs, les connaissances, mais aussi tous les stimuli sensoriels perçus. Parmi les sens mobilisés, l’odorat, de par son importance mémorielle et émotionnelle, semble jouer un rôle à part dans la relation que tisse l’humain à la nature. C’est à ce rôle de l’olfaction dans l’expérience de nature, à cette part olfactive de l’expérience, que s’intéresse cette thèse s’articulant autour de trois axes de recherches et de réflexion. Dans un premier chapitre, ce manuscrit aborde comment caractériser la part olfactive de l’expérience de nature d’un point de vue individuel. La réflexion de ce chapitre se base sur la mise en œuvre et l’analyse des réponses à un questionnaire articulant entre eux l’olfaction, l’identité et les usages sensoriels d’espaces de nature déclarés par les individus. Dans le deuxième chapitre, c’est la façon dont l’expérience olfactive de nature s’ancre dans un environnement et un contexte qui est abordée, et comment cet ancrage influence la façon dont l’individu vit et décrit son expérience olfactive. La réflexion de ce chapitre s’appuie sur des témoignages recueillis lors de parcours olfactifs commentés et des questionnaires in situ. Enfin, en se basant sur les résultats des études précédentes, le troisième et dernier chapitre s’intéresse à la façon dont l’expérience olfactive de nature peut avoir un rôle transformateur sur l’individu dans le cadre particulier des environnements restaurateurs. En guise de conclusion, ce manuscrit aborde des réflexions, des ouvertures théoriques et pratiques, et des applications que peuvent apporter les résultats du travail de thèse, notamment la place que le sensoriel, l’incarné et l’olfactif pourraient prendre à l’avenir dans la façon de penser et d’enrichir l’expérience de nature. / Modern humans are currently experiencing a transformation of their environment and of their way of life that are impacting the way they can experience nature in their daily life. These experiences of nature are of great importance for the well-being and health of individuals. They are complex phenomena, anchored in an environmental context, but also socio-cultural, which are based on closely intertwined components that are emotions, memories, knowledge, but also all the sensory stimuli perceived by the human body. Among the senses mobilized, the sense of smell, by its memory and emotional importance, seems to play a singular part in the relationship that weaves the human to nature. The work conducted in this thesis, articulating around three axes of research and reflection, concerns this role of the olfaction in the experience of nature. In a first chapter, we discuss how to characterize the olfactory part of the experience of nature from an individual point of view. The thought developed in this chapter is based on the implementation and the analysis of the answers from a questionnaire linking together the olfaction, the identity and the sensory uses of spaces of nature declared by the individuals. In the second chapter, we addressed how the olfactory nature experience is embedded in an environment and in context, and how this anchor influences how the individual lives and describes their olfactory experience. The reflection of this chapter is based on testimonies gathered from commented olfactory walks and in situ questionnaires. Finally, based on the results of previous studies, in the third and last chapter of this thesis, we focus on how the olfactory experience of nature can have a transformative role for the individual, and particularly in the context of restorative environment. To conclude, we discuss the theoretical and practical openings, and applications that the results of the thesis work can bring, and particularly the place that sensory, embodied and olfactory experiences might take in the future in the way of thinking and enriching experiences of nature.
163

Laying Bare the Sins of the Father: Exploring White Fathers in Post-Apartheid Literature

Reck, Casey M 01 January 2010 (has links)
This Thesis is an exploration of white fathers in three post-apartheid novels: Mark Behr's The Smell of Apples, Nadine Gordimer's The House Gun, and J. M. Coetzee's Disgrace. By examining the link between private white hegemonic masculinity and the apartheid government, the Thesis analyzes the transitional process as these men try to adopt less authoritative identities.
164

Att attrahera de mänskliga sinnenaför att stärka ett varumärke : En studie kring användning, möjligheter och risker med sinnesmarknadsföring / To Attract the Human Sensesto Enhance a Brand : A study of Usage, Possibilities and Risks associated with Sensory Marketing

Jonsson, Malin, Netzler, Jenny January 2011 (has links)
Syfte: Syftet med den här studien är att undersöka hur reklambyråer strategiskt tänker och praktiskt användersig av syn, hörsel, lukt, smak och känsel i marknadsföring av sina kunders varumärken samt undersöka vilka möjligheter och risker som finns med sinnesmarknadsföring. Metod: Studien följer den hermeneutiska vetenskapsinriktningen och har genomförts utifrån en kvalitativmetodansats där litteraturstudier och intervjuer genomförts. Teoretisk referensram: Studien utgår bland annat ifrån boken “Sinnesmarknadsföring” med fokus på användningav de fem mänskliga sinnena syn, hörsel, lukt, smak och känsel. Referensramen består av information, fakta och exempel kring upplevelserummet och sinnena. Därefter behandlas ämnesområdet varumärkesstrategi i kombination med sinnesmarknadsföring. Empiri: Empirin grundar sig på genomförda intervjuer med sex respondenter från fem olika reklambyråer i Norrköping och Linköping samt en intervju med Niklas Broweus, sinnesmarknadsföringsexpert, som alla bidrar med information och åsikter kring arbetet med sinnesmarknadsföring. Analys: Analysen består av svar på om och hur byråerna arbetar med sinnesmarknadsföring i sitt dagliga arbete men även vilka anledningar det finns till att de i vissa fall inte gör det. Därefter behandlas hur sinnesstrategier används i olika upplevelserum för att skapa upplevelser hos konsumenter samt hur sinnesstrategier används för att stärka ett varumärke. Slutligen diskuteras vilka möjligheter, risker och framtidsutsikter som finns med sinnesmarknadsföring. Slutsatser: Två av fem intervjuade byråer säger uttryckligen att de arbetar medvetet med sinnesmarknadsföring i sitt dagliga arbete, men det framkom att alla byråerna gör det omedvetet på något plan, där det främst kretsar kring syn- och ljudsinnet. Sinnesmarknadsföring är implementerbart i olika upplevelserum men även i den digitala sfären och på specifika produkter. Användning av sinnesstrategier bidrar till att stärka varumärket, skapa mervärde hos konsumenten och stärker samtidigt relationen mellan konsument och företag. Sinnesmarknadsföring kan erbjuda en mer anpassad kommunikation vilket behövs då konkurrensen hårdnar och mediabruset ökar. Den största utmaningen med sinnesmarknadsföring är i nuläget att begreppet inte är riktigt etablerat vilket leder till att det inte finns en direkt efterfrågan på det.
165

Sinnesmarknadsföring : En undersökning av dagligvarubranschens användning av sinnesmarknadsföring

Djedovic, Sandra January 2015 (has links)
Syfte: Uppsatsen syftar till att undersöka utvecklingen av sinnesmarknadsföring genom att ta reda på hur det används av företag inom dagligvarubranschen.   Metod: Studien har en kvalitativ forskningsstrategi. Fem intervjuer och tio observationer utfördes som metod i undersökningen. Intervjuerna utfördes på fem anställda på olika dagligvarubutiker i Solna, och samma butiker observerades under två tillfällen. Urvalet valdes utifrån ett bekvämlighetsurval.   Slutsatser: Sinnesmarknadsföring är ett relativt okänt begrepp. Synen är människans största sinne och därför riktas marknadsföringen främst mot visuella uttryck. I den här undersökningen har det visat sig att lukten är ett lika viktigt sinne, eftersom att dofter har förmågan att väcka minnen och även stimulera de övriga sinnena. ICA Maxi var den enda butik av samtliga undersökta, som skapade en multisensorisk varumärkesupplevelse där alla sinnen samarbetade. / Purpose: The purpose of this study is to examine Sensory marketing by finding out how it is used by companies in the retail industry. Method: The study has a qualitative research strategy. Five interviews and ten observations were carried out as method for the research. The interviews were conducted with five employee at various grocery stores in Solna, the stores were also observed during two occasions. They were selected based on a convenience sample. Conclusion: Sensory marketing is a relatively unknown term. The sight is our biggest sense, therefore are marketers primarily targeting visual expressions. This study has shown that the smell is an important sense, because its ability to evoke memories and stimulate the other senses as well. ICA Maxi was the only store of all investigated who had created a multisensory brand experience where all senses cooperated.
166

Olfactory Training in Patients with Parkinson's Disease

Hähner, Antje, Tosch, Clara, Wolz, Martin, Klingelhöfer, Lisa, Fauser, Mareike, Storch, Alexander, Reichmann, Heinz, Hummel, Thomas 22 January 2014 (has links) (PDF)
Objective: Decrease of olfactory function in Parkinson's disease (PD) is a well-investigated fact. Studies indicate that pharmacological treatment of PD fails to restore olfactory function in PD patients. The aim of this investigation was whether patients with PD would benefit from “training” with odors in terms of an improvement of their general olfactory function. It has been hypothesized that olfactory training should produce both an improved sensitivity towards the odors used in the training process and an overall increase of olfactory function. Methods: We recruited 70 subjects with PD and olfactory loss into this single-center, prospective, controlled non-blinded study. Thirty-five patients were assigned to the olfactory training group and 35 subjects to the control group (no training). Olfactory training was performed over a period of 12 weeks while patients exposed themselves twice daily to four odors (phenyl ethyl alcohol: rose, eucalyptol: eucalyptus, citronellal: lemon, and eugenol: cloves). Olfactory testing was performed before and after training using the “Sniffin' Sticks” (thresholds for phenyl ethyl alcohol, tests for odor discrimination, and odor identification) in addition to threshold tests for the odors used in the training process. Results: Compared to baseline, trained PD patients experienced a significant increase in their olfactory function, which was observed for the Sniffin' Sticks test score and for thresholds for the odors used in the training process. Olfactory function was unchanged in PD patients who did not perform olfactory training. Conclusion: The present results indicate that olfactory training may increase olfactory sensitivity in PD patients.
167

Brain responses to odor mixtures with sub-threshold components

Hummel, Thomas, Olgun, Selda, Gerber, Johannes, Huchel, Ursula, Frasnelli, Johannes 06 February 2014 (has links) (PDF)
Although most odorants we encounter in daily life are mixtures of several chemical substances, we still lack significant information on how we perceive and how the brain processes mixtures of odorants. We aimed to investigate the processing of odor mixtures using behavioral measures and functional magnetic resonance imaging (fMRI). The odor mixture contained a target odor (ambroxan) in a concentration at which it could be perceived by half of the subjects (sensitive group); the other half could not perceive the odor (insensitive group). In line with previous findings on multi-component odor mixtures, both groups of subjects were not able to distinguish a complex odor mixture containing or not containing the target odor. However, sensitive subjects had stronger activations than insensitive subjects in chemosensory processing areas such as the insula when exposed to the mixture containing the target odor. Furthermore, the sensitive group exhibited larger brain activations when presented with the odor mixture containing the target odor compared to the odor mixture without the target odor; this difference was smaller, though present for the insensitive group. In conclusion, we show that a target odor presented within a mixture of odors can influence brain activations although on a psychophysical level subjects are not able to distinguish the mixture with and without the target. On the practical side these results suggest that the addition of a certain compound to a mixture of odors may not be detected on a cognitive level; however, this additional odor may significantly change the cerebral processing of this mixture. In this context, FMRI offers unique possibilities to look at the subliminal effects of odors.
168

Olfactory approaches to historical study the smells of Chicago's stockyard jungle, 1900-1910 /

McNulty, Christine. January 2009 (has links)
Thesis (M.A.)--Indiana University, 2009. / Title from screen (viewed on August 28, 2009). Department of History, Indiana University-Purdue University Indianapolis (IUPUI). Advisor(s): Marianne Wokeck. Includes vita. Includes bibliographical references (leaves 93-99).
169

[en] DETECTING ARCHITECTURALLY-RELEVANT CODE ANOMALIES ON MULTILANGUAGE SYSTEMS / [pt] DETECÇÃO DE ANOMALIAS DE CÓDIGO DE RELEVÂNCIA ARQUITETURAL EM SISTEMAS MULTILINGUAGEM

MANUELE DOS REIS FERREIRA 02 June 2015 (has links)
[pt] Estudos recentes mostram que os sistemas são desenvolvidos por pelo menos quatro linguagens. Ao utilizar estas linguagens, boas práticas de desenvolvimento também são diferentes. Estes aspectos de heterogeneidade dificultam a concepção de soluções que apoiem desenvolvedores na construção de sistema multilinguagem com qualidade. Em particular, diversas abordagens têm surgido nos últimos anos com o objetivo de auxiliar os analistas nas tarefas de compreensão e manutenção desses sistemas. Porém, ainda existe uma carência de abordagens com foco na detecção de anomalias de código em sistemas multilinguagem. Dessa forma, o objetivo desse trabalho é oferecer suporte a identificação de sintomas de degradação arquitetural através do uso de estratégias baseadas em métricas em sistemas multilinguagem. / [en] Recent studies show that the systems are designed with at least four languages. Using these languages, best practices to development are also different. These aspects of heterogeneity make it difficult to design solutions that support developers activities on developing of multi-language system with quality. In particular, several approaches have emerged with the aim to assist analysts in comprehension and maintaining systems. However, there is still a lack of approaches focused on detection of code anomaly on multi-language systems. Thus, the aim of this work is to support the identification of symptoms of architectural degradation through the use of metrics-based strategies on multi-language systems.
170

[en] UNDERSTANDING AND IMPROVING BATCH REFACTORING IN SOFTWARE SYSTEMS / [pt] ENTENDENDO E MELHORANDO A PRÁTICA DE REFATORAÇÕES EM LOTE EM SISTEMAS DE SOFTWARE

DIEGO CEDRIM GOMES REGO 15 January 2019 (has links)
[pt] Em um sistema de software, as anomalias de código indicam problemas estruturais que podem ser resolvidos através da refatoração. No entanto, desenvolvedores podem negligenciar ou acabar criando novas anomalias ao refatorar. Pouco foi relatado sobre os efeitos benéficos e prejudiciais da refatoração de anomalias de código. Evidências sugerem que os desenvolvedores frequentemente precisam aplicar uma sequência de refatorações (refatoração em lote) para remover completamente as estruturas anômalas. Assim, nesta tese, realizamos uma série de estudos para entender o impacto de refatorações simples e em lote em anomalias de código. Em nossos primeiros estudos, analisamos com que frequência os tipos de refatoração comumente usados afetam a densidade de anomalias ao longo das histórias de dezenas de projetos. Mesmo que 79,4 por cento das refatorações tenham tocado em elementos anômalos, 57 por cento não reduziram suas ocorrências. Surpreendentemente, apenas 9,7 por cento das refatorações removeram anomalias de código, enquanto 33 por cento induziram a introdução de novas. Por um lado, observamos padrões nocivos de introdução de anomalias. Por outro lado, observamos que muitas anomalias podem ser removidas apenas por refatorações em lote. Assim, nossos últimos estudos investigam o impacto de refatorações em lote nas anomalias. Mesmo quando aplicadas em lotes, as refatorações tendem a não afetar ou mesmo aumentar a densidade de anomalias. Também identificamos padrões entre tipos de lotes e tipos de anomalias, levando-nos à criação de heurísticas que podem orientar os desenvolvedores durante tarefas de remoção de anomalias de código. O último estudo avaliou essas heurísticas e concluímos que os resultados são promissores. / [en] Code smells in a program represent indications of structural quality problems, which can be addressed by software refactoring. However, developers may neglect or end up creating new code smells through single refactoring. Little has been reported about recurring beneficial and harmful effects of refactoring on the program structural quality. As a consequence, developers still miss guidance along non-trivial smell-removing tasks. In fact, evidence suggests developers often need to apply a sequence of refactorings, so-called batch refactoring, to entirely remove a smelly code structure. Thus, in this thesis, we have conducted a series of studies to understand the impact of single and batch refactorings on code smells. In our first studies, we analyze how often commonly-used types of single refactoring affect the density of code smells along the version histories of dozens of projects. Even though 79.4 percent of the refactorings touched smelly elements, 57 percent had no impact on the smell removal. Surprisingly, only 9.7 percent of refactorings removed smells, while 33 percent induced the introduction of new ones. On one hand, we observed that harmful refactoring-smell patterns could be used to guide developers to avoid smell-inducing refactoring. On the other hand, we observed that many smells can be removed only through batch refactoring. Thus, our last studies investigate the impact of batch refactorings on smells. Even when applied in batches, refactorings tend to maintain or even increase the density of code smells. We also identified common batch-smell patterns, which enable us to create heuristics that can guide developers through smell-removing tasks. The last study evaluated those heuristics, and we conclude the outcomes are promising.

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