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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.
1

Scientific Theories on the Déjà Vu Phenomenon

Redgård, Rickard January 2009 (has links)
<p>The term ”déjà vu” was first introduced around the 1890s in order to separate thephenomenon from other paramnesias, but a clear consensus on its definition was not reacheduntil mid 20th century. Since the middle of the 19th century, several dozens ofparapsychological, pseudoscientific and scientific theories have been proposed to explain thedéjà vu phenomenon, ranging from “messages from God” to “delayed neural transmissionspeed”. Most scientific theories can be divided into four categories: dual-processing,neurological, memory and attentional. This paper discusses and compares some of thesetheories. Memory and attentional theories are concluded to have most explanatory power andpotential to demystify the phenomenon through future research.</p>
2

Scientific Theories on the Déjà Vu Phenomenon

Redgård, Rickard January 2009 (has links)
The term ”déjà vu” was first introduced around the 1890s in order to separate thephenomenon from other paramnesias, but a clear consensus on its definition was not reacheduntil mid 20th century. Since the middle of the 19th century, several dozens ofparapsychological, pseudoscientific and scientific theories have been proposed to explain thedéjà vu phenomenon, ranging from “messages from God” to “delayed neural transmissionspeed”. Most scientific theories can be divided into four categories: dual-processing,neurological, memory and attentional. This paper discusses and compares some of thesetheories. Memory and attentional theories are concluded to have most explanatory power andpotential to demystify the phenomenon through future research.
3

Remuneração das Redes de Telefonia Móvel no Brasil / Remuneration of the Mobile Networks in Brazil

Silva, Abraão Balbino e 18 March 2011 (has links)
Dissertação (mestrado)—Universidade de Brasília, Centro de Estudos em Regulação de Mercados, 2011. / Submitted by Shayane Marques Zica (marquacizh@uol.com.br) on 2011-09-14T18:19:27Z No. of bitstreams: 1 2011_AbraaoBalbinoeSilva.pdf: 1744255 bytes, checksum: 23e944b3e9466a98cd48fca6e60488bf (MD5) / Approved for entry into archive by LUCIANA SETUBAL MARQUES DA SILVA(lucianasetubal@bce.unb.br) on 2011-09-20T15:56:43Z (GMT) No. of bitstreams: 1 2011_AbraaoBalbinoeSilva.pdf: 1744255 bytes, checksum: 23e944b3e9466a98cd48fca6e60488bf (MD5) / Made available in DSpace on 2011-09-20T15:56:43Z (GMT). No. of bitstreams: 1 2011_AbraaoBalbinoeSilva.pdf: 1744255 bytes, checksum: 23e944b3e9466a98cd48fca6e60488bf (MD5) / O propósito da presente dissertação é fazer uma análise da questão da interconexão de redes detelefonia móvel no Brasil, levando em consideração os aspectos regulatórios existentes, previsõesregulamentares da Agência Nacional de Telecomunicações – Anatel e os aspectos econômicosenvolvidos. Como referência teórica são utilizados os modelos propostos por Armstrong & Wright(2008), a partir dos quais são desenvolvidos modelos para o caso brasileiro. Após o desenvolvimentodos modelos, utiliza-se o modelo com probabilidade de expansão do mercado para a realização desimulações com vistas à avaliação de impactos de medidas regulatórias em relação a alterações noValor de Uso de Rede Móvel – VUM. _______________________________________________________________________________ ABSTRACT / The purpose of this dissertation is to analyze the issue of interconnection of mobile networks in Brazil,taking into account the existing regulatory issues, forecasts regulations of the NationalTelecommunications Agency - Anatel and the economics involved. We use as theoretical referencethe models proposed by Armstrong & Wright (2008), from which models are developed for theBrazilian case. After developing the models, we use the model with probability of market expansion forthe simulations regarding the impacts of regulatory measures in relation to changes in the value ofMobile Termination Rates - MTR.
4

Neural correlates of déjà vu and dissociation the roles of the amygdala and hippocampus in the prevalence of deja vu used as an indicator for the severity of dissociation and posttraumatic stress disorder /

Pontau, James R., Jr. January 2008 (has links)
Thesis (M.A.)--Cleveland State University, 2008. / Abstract. Title from PDF t.p. (viewed on Mar. 17, 2009). Includes bibliographical references (p.37-42) and appendices. Available online via the OhioLINK ETD Center. Also availabe in print.
5

DAY JAW BOO, a re-collection

VanWagoner, Rachel 16 March 2011 (has links) (PDF)
For my MFA thesis exhibition, I have collected ideas surrounding events that happened in the past and combined them with the ceramic work I have made in the three years of my master's program at Brigham Young University. I have grouped visual elements from Buck Rogers and other Futro (retro-future) pop-culture with ideas surrounding the Voyager Interstellar Mission and the compiling of the Golden Record. Combining these elements in an installation, will create an environment where people can reflect on things they have "already seen" and envision a brighter future. For that reason I playfully call the show Day Jaw Boo, a re-collection and allow the viewers to enter a dream-like-reality-stage of déjà vu.
6

Kalibrace skleněných měřítek / Standard Glass Scales Calibration

Jelínek, Vít January 2015 (has links)
This thesis deals with a more work-efficient and time-efficient method of calibration of standard glass scales, with practical use in the Czech Metrology Institute Regional Inspectorate in Brno. The desired streamlining of calibration were achieved in the use of a 3D coordinate measuring machine Micro-Vu Excel 4520. In the service software InSpec, six measuring programs were designed in the use of a standard glass scale brand SIP. The measurement uncertainties of this calibration were presented and calculated. This thesis draws up a draft proposal of the calibration procedure and drafts a formalized document of the calibration.
7

Une exploration multidimensionnelle des phénomènes expérientiels mnésiques : de la sémiologie à l'activité neuronale unitaire / Scrutinizing memory experiential phenomena : from large-scale networks to single-unit activity

Curot, Jonathan 21 December 2018 (has links)
Depuis 10 ans, se multiplient les tentatives d'augmentation des performances mnésiques humaines par la stimulation électrique intracérébrales (SEIC), mais avec des résultats contradictoires et peu probants. Nous sommes incapables d'activer les réseaux mnésiques de manière reproductible et ne maitrisons pas les effets des SEIC dont le choix des paramètres est empirique. Surtout, les corrélats neuronaux de la mémoire à long-terme que les SEIC sont censées activer restent imparfaitement connus. Dans ce contexte, les phénomènes expérientiels mnésiques ressentis par les patients épileptiques, du déjà-vu aux réminiscences, spontanés ou induits par la SEIC, représentent une véritable porte d'entrée vers les réseaux de la mémoire à long-terme et un modèle pour comprendre comment activer ces réseaux par la SEIC. Ils sont d'ailleurs l'une des sources d'inspiration des essais de la neuromodulation mnésique. Pourtant, ils restent sous-exploités. Nous proposons de les étudier au travers d'une approche multidimensionnelle : (1) Une dimension phénoménologique, analysant la sémiologie de certains phénomènes jusque-là mal explorés, confondus entre eux ou avec le déjà-vu : les réminiscences, le déjà-rêvé et la préscience. Nous nous sommes basés pour cela sur nos propres données et l'analyse de l'ensemble des réminiscences induites par les SEIC rapportées dans la littérature. Nous avons également étudié le cas d'une patiente épileptique avec atrophie sévère bi-hippocampique et préservation du cortex périrhinal ayant développé des déjà-vus et des phénomènes avec préscience récurrents. (2) Une dimension électrophysiologique avec exploration des effets des SEIC sur les réseaux mnésiques à différentes échelles. Nous nous sommes basés sur l'analyse rétrospective des paramètres de SEIC et de leurs effets. Nous avons aussi analysé le couplage fonctionnel entre différentes structures du lobe temporal par un traitement de l'EEG intracrânien au moment des réminiscences induites par SEIC. Nous démontrons que : - Les SEIC peuvent induire une grande variété de souvenirs appartenant aux différents systèmes de la mémoire déclarative (ex. des souvenirs sémantiques ou autobiographiques épisodiques). Mais il s'agit majoritairement de souvenirs peu contextualisés et fragmentaires. [...] / Over the past 10 years, attempts to increase human memory performances by electrical brain stimulation (EBS) led to unconvincing or contradictory results. We are still unable to activate memory networks by EBS in a reproducible way, the effects of EBS at different scales (from neuronal activity to large-scale networks) and the optimal EBS parameters are unknown. Above all, the neural correlates of the long-term memory that EBS are supposed to activate remain imperfectly known. In this context, the memory-related experiential phenomena reported by epileptic patients, like déjà-vu or reminiscences, either spontaneous or induced by EBS, are a gateway to the long-term memory networks and a precious model to understand how to activate them with EBS to improve human memory. However, they remain underused and misinterpreted. Therefore, we studied them with a multidimensional approach: (1) A phenomenological dimension, analysing the semiology of some poorly explored phenomena: reminiscences, déjà-rêvé and prescience. For this, we based our analyses on our own data and all of the reminiscences induced by EBS in the literature. We also studied the case of an epileptic patient with severe bi-hippocampal atrophy and preservation of the perirhinal cortex, who had developed frequent déjà-vu and experiential phenomena with prescience. (2) An electrophysiological dimension with the analysis of EBS effects on memory networks at different scales. We retrospectively analysed EBS parameters and their effects. We also analysed the intracranial EEG to compute the functional coupling between different structures inside the temporal lobe during the brief moments corresponding to the reminiscences. We demonstrated that: - EBS can induce a wide variety of memories belonging to the different systems of declarative memory (e.g. episodic semantic or autobiographical memories). However, most of these are little contextualized and fragmentary. - The activation of memory networks is possible only by some of their hubs, not all of them. Preferential input gates are more easily activated and the qualitative nature of memories depends largely on them. The rhinal cortex seems to be the gatekeeper of these memory networks, where EBS most frequently induce memories. [...]
8

Vilniaus universiteto dėstytojų vidinės darnos ir gyvensenos tyrimas / Sense of coherence and health behaviour analysis among the lecturers of vilnius university

Šeraitė, Rašel 27 June 2014 (has links)
Vidinė darna įvairių autorių yra laikoma vienu iš fizinės ir psichinės sveikatos išteklių, žmogaus atsparumo ir sėkmingos adaptacijos pagrindu. Nustatyta, kad pedagogų darbas yra vienas stresiškiausių, o tyrimų nagrinėjančių pedagogų vidinę darną atlikta per mažai, todėl šio darbo tikslas buvo įvertinti Vilniaus universiteto dėstytojų vidinės darnos lygį, gyvenseną ir jų sąsajas. Medžiaga ir metodai. Tyrime dalyvavo 289 VU dėstytojai, nuo 25 iki 72 m. amžiaus. Duomenų rinkimui buvo naudotas anoniminės anketinės apklausos metodas. Respondentams pateikta anketa, kurioje buvo demografinius duomenis, gyvenseną bei vidinę darną vertinantys klausimai (3 ir 13 klausimų klausimynai). Vidinė darna ir jos komponentai buvo vertinami pagal „Gyvenimo orientacijos anketą“ (A. Antonovsky, 1987), kurią sudarė 13 klausimų. Naudotas paplitimo epidemiologinis tyrimo tipas. Duomenų analizė atlikta statistine programa SPSS for Windows 13 versija. Naudotas statistinio reikšmingumo lygmuo p < 0,05. Rezultatai ir išvados. Rezultatai parodė, kad VU dėstytojai savo gyvenimo kokybę ir sveikatos būklę dažniausiai vertina kaip gerą. Gyvenimo kokybę geriau įvertino moterys, vieniši ir kelias darbovietes turintys dėstytojai. Lėtinėmis ligomis sirgo 43 proc. dėstytojų, iš jų dažniausiai našliai/ės. Tyrimo metu nustatyti, statistiškai reikšmingi skirtumai tarp gyvensenos veiksnių ir dėstytojų lyties, amžiaus bei šeimyninės padėties. Šiuo metu rūkantys prisipažino 38 proc. dėstytojų. Didesnis rūkymo... [toliau žr. visą tekstą] / Different authors consider sense of coherence to be one of the physical and mental health resources, stress resistance and successful adaptation basis. It is done not enough researches dealing with educationalists and sense of coherence, although it was found that pedagogical work is one of the most stressful. The aim of this work was to analyse the health behaviour, Sense of Coherence (SOC) and interfaces between them in the population of the lecturers in Vilnius University. Materials and methods. 289 Vilnius university lecturers of 25-72 years old age (mean age 43,82) participated in this survey. An anonymous questionnaire for getting data about social-demographic factors, health behaviour, subjective health assessment created by author was used in the survey. In the questionnaire Sense of coherence was measured with “The orientation to life questionnaire” consisting of 13 questions. It was composed by A. Antonovsky (1987). Data analysis was performed using Statistical program SPSS for Windows 13 version. Level of statistic significance was p< 0.05 Results and conclusions. The results showed that the quality of life and subjective health assessment mostly was reported as good. Single respondents ant those who had more than one workplace reported to have better quality of life. 43 % of lecturers reported to have chronic diseases, most of them were widows(-ers). Examination revealed that it was statistically significant differences between lifestyle and respondents gender... [to full text]
9

Sonhos na clínica psicanalítica e na cultura : um estudo de "o espelho" de Tarkovski / Dreams in psychoanalytic clinic and culture : a study of Tarkovski's "The Mirror"

Oliveira, Marisa Terezinha Garcia de January 2017 (has links)
A obra escrita de Tarkovski e o filme O Espelho são analisados à luz da teoria psicanalítica da interpretação dos sonhos articulando conceitos vindos de outros campos do conhecimento, quais sejam inconsciente ótico e choque em Walter Benjamin. O filme se passa em lugares do passado de Tarkovski, evocados a partir de lembranças encobridoras, sonhos e devaneios, em que o cineasta é espectador e ator. Há a referência, no título e ao longo das cenas, ao espelho, também usado por Lacan, como modelo de dispositivo ótico, ao teorizar sobre a formação da função do “Eu”. Através desta análise, pretendeu-se aproximar a linguagem do filme à linguagem do sonho, encontrando conteúdos oníricos latentes. São analisadas as filiações e influências, o roteiro, e aquilo que fala nas lembranças de infância, nos sonhos e devaneios associados às tradições culturais russas, ao poeta Puchkin e a Dostoievski. Identificam-se aspectos do pensamento utópico e articulações psicanalíticas na cena do devaneio do personagem Ignat. Também são comentadas articulações à estética do choque em Walter Benjamin, nas cenas de déjà vu de Ignat e no fenômeno análogo que acometeu Maria na cena da tipografia. O conceito de Outra cena, do campo freudiano, é contextualizado na discussão do filme e também cotejado com elementos da teoria platônica apontados por Lacan em seus seminários. Finalmente, a cena de levitação de Maria é comparada com a cena da pintura de Füssli The Nightmare e interpretada como sendo de um sonho de angústia. / Tarkovski's written work and the film The Mirror are analyzed in the light of psychoanalytic theory of interpretation of dreams being articulated with concepts from other fields of knowledge, such as optic unconscious and shock at Walter Benjamin’s writings. The film takes place somewhere in Tarkovski’s past, evoked from screen memories, dreams and daydreams, in which the filmmaker is a spectator and an actor at a time. There is a reference, in the title and throughout the scenes, to the mirror, which is also used by Lacan, as the model of an optical device, in theorizing about the formation of the function of the "self". Through this analysis, it was intended to approximate the language of the film to the language of the dream and find latent dreams contents. The affiliations and influences, the script, and what he talks about in the memories of childhood, the dreams and daydreams associated with Russian cultural traditions, the poet Puchkin and Dostoyevsky are analyzed. We identify aspects of utopian thinking and psychoanalytic articulations in the scene of Ignat's daydream. Similarly, articulations among the aesthetics of the shock in Walter Benjamin, in the déjà vu scenes of Ignat and in the analogous phenomenon that rushed Maria in the typography scene are also commented in this work. The concept of Other scene, from the freudian field, is contextualized in the discussion of the film and also compared with elements of the platonic theory pointed out by Lacan in his seminars. Finally, the levitation scene of Mary is compared to the painting scene of Füssli The Nightmare and interpreted as being of a dream of anguish.
10

Marches aléatoires en milieux aléatoires: Etude de quelques modèles multidimensionnels

Simenhaus, François 13 November 2008 (has links) (PDF)
Cette thèse est consacrée à différents modèles de marches aléatoires en milieux aléatoires; elle est constituée de $5$ chapitres. Les chapitres $1$ et $4$ sont essentiellement bibliographiques, ils couvrent une partie de la littérature consacrée au modèle i.i.d ainsi qu'à différents modèles où l'environnement est construit à partir d'une percolation. Dans le chapitre $2$ nous étudions la classe des marches admettant une direction asymptotique dans le cas du modèle i.i.d., c'est-à-dire tel que $X_n/|X_n|$ ait une limite deterministe sous la loi annealed. Nous établissons notamment qu'une marche admet une direction asymptotique si et seulement si elle est transiente dans toute les directions d'un ouvert non vide de $\mathbb{R}^d$. Dans le chapitre $3$, nous étudions un modèle de marches en temps continu en milieux aléatoires. Les différents résultats de cette partie décrivent l'impact du couplage entre les transitions et les taux de saut sur la vitesse de la marche. Le chapitre $5$ est consacré à un modèle de marche ralentie par les clusters d'une percolation sous-critique dans $\mathbb{Z}^d$. Nous montrons que, selon la force du ralentissement, la marche se place dans un régime sous-diffusif ou diffusif.

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