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1
Williams, David Michael. "Psychological impact of dental enamel opacities". Thesis, Cardiff University, 2005. http://orca.cf.ac.uk/55569/.
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Conclusion: Implicit measures of attitude can be used to identify variation in the strength of attributions made about different dental conditions. Explicit measures may measure the valence of attitudes. This study suggests that mild fluorosis may be perceived more favourably than untreated dental caries. It has also shown that traditional approaches to assessing the perception of fluorosis may have exaggerated its impact.
2
Zhao, Lianshui. "High-Accuracy Atomic Calculations for Plasma Opacities". The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1556956722982109.
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Smith, Martin R. "Cataract, macular characteristics and assessing lens opacities". Thesis, Aston University, 2014. http://publications.aston.ac.uk/22482/.
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Age-related macular degeneration and cataract are very common causes of visual impairment in the elderly. Macular pigment optical density is known to be a factor affecting the risk of developing age-related macular degeneration but its behaviour due to light exposure to the retina and the effect of macular physiology on this measurement are not fully understood. Cataract is difficult to grade in a way which reflects accurately the visual status of the patient. A new technology, optical coherence tomography, which allows a cross sectional slice of the crystalline lens to be imaged has the potential to be able to provide objective measurements of cataract which could be used for grading purposes. This thesis set out to investigate the effect of cataract removal on macular pigment optical density, the relationship between macular pigment optical density and macular thickness and the relationship between cortical cataract density as measured by optical coherence tomography and other measures of cataract severity. These investigations found: 1) Macular pigment optical density in a pseudophakic eye is reduced when compared to a fellow eye with age related cataract, probably due to differences in light exposure between the eyes. 2) Lower macular pigment optical density is correlated with thinning of the entire macular area, but not with thinning of the fovea or central macula. 3) Central macular thickness decreases with age. 4) Spectral domain optical coherence tomography can be used to successfully acquire images of the anterior lens cortex which relate well to slit lamp lens sections. 5) Grading of cortical cataract with spectral domain optical coherence tomography instruments using a wavelength of 840nm is not well correlated with other established metrics of cataract severity and is therefore not useful as presented as a grading method for this type of cataract.
4
Durant, Jennifer Susan. "Risk factors for cataract : retrodots and waterclefts". Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324368.
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BRUEL, THERESE. "Etude des anomalies radiologiques mammaires (opacites et microcalcifications) sans support clinique : a propos de 269 patientes operees au centre claudius regaud (1985-1990)". Toulouse 3, 1991. http://www.theses.fr/1991TOU31058.
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Bordini, D. "THE TRANSPARENCIES AND THE OPACITIES OF EXPERIENCE. INTENTIONALISM, PHENOMENAL CHARACTER, AND MOODS". Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/236976.
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According to Intentionalism, what it’s like to undergo a conscious experience (i.e. its phenomenal character) is nothing over and above what that experience represents (i.e. its intentional content). This view is usually thought to be directly and strongly supported by introspective evidence and, in particular, by the following introspective datum, the so-called transparency of experience: in introspection one is not aware of the intrinsic qualities of one’s experience, but the only features one is directly aware of appear as properties of mind-independent, external objects of the world. (Harman, 1990; Tye, 1995, 2000) This suggests that all that there is about our conscious experience is nothing over and above its intentional content.
In this dissertation, I focus on and address the issue of the transparency of experience and its relations with Intentionalism. More precisely, I consider why and how transparency exactly supports Intentionalism, what is the scope of transparency, what exactly is its strength, and what are the consequences on Intentionalism in case transparency fails. In particular, I argue for these two interconnected claims: (1) experience is not transparent in the sense required by Intentionalism; (2) introspection does not support Intentionalism but, on the contrary, offers strong reasons against it.
In order to develop my argument, I consider the case study of moods, namely, affective states like anxiety, depression, elation, grumpiness, gloominess, irritation, etc.
The discussion on moods provides the following two main results. (i) At least some moods–– e.g., undirected anxiety, objectless depression, sudden elation––are genuinely undirected, as long as they are not other-presenting experiences. This is not dependent on some deficiency/inability of the introspector, but it is a fact about their phenomenal character: it is constitutively part of what it’s like to be in those moods. (ii) The fact that those experiences are not other-presenting leads to conclude that they are also fully opaque experiences (i.e. entirely non-transparent experiences). Indeed, as I argue, one minimal condition for transparency is being other-presenting.
These two results have important consequences both on Intentionalism and on transparency. For what concerns the consequences on Intentionalism, the opacity of undirected moods is not only a mere lack of evidence in support of Intentionalism; rather, it constitutes a source of evidence against it. That undirected moods are opaque, indeed, means that their phenomenal character, as it is revealed in introspection, is such that it cannot be identified with intentional content. So, I argue, if one considers transparency as a strong evidence in support of the claim that phenomenal character is intentional content, then, and for the same reasons, one should also accept that opacity is strong evidence against that claim. Thus, Intentionalism as a theory concerning the nature of phenomenal character is to be rejected because the opacity of undirected moods offers introspective direct and strong evidence against it.
On the other hand, as for transparency, with Kind’s (2003) distinction between strong and weak transparency at hand, I argue that transparency should not be rejected altogether, but rather revised in its strength and thereby understood in terms of weak transparency, where this means the following: although difficult, it is still not impossible to be introspectively aware of the qualities of the experience. Thus, I claim, experience is not strongly transparent (i.e. the way the intentionalist would like it to be) but weakly transparent. Hence, my twofold conclusion: (1) experience is not transparent in the (strong) sense required by Intentionalism; (2) introspection does not support Intentionalism but, on the contrary, offers strong evidence against it. Although these results suggest a rejection of Intentionalism, my final suggestion is that this is to be done in a constructive way. So, in the very final paragraphs I offer some general considerations on how to make sense of an alternative view that keeps the best of the intentionalist proposal and, at the same time, drops what is wrong with it.
7
Merdji, Hamed. "Etude par spectroscopie d'absorption des opacites et des proprietes radiatives des plasmas chauds". Palaiseau, Ecole polytechnique, 1998. http://www.theses.fr/1998EPXX0029.
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Dans les plasmas denses et chauds rencontres aussi bien dans les experiences de fusion par confinement inertiel qu'en astrophysique, le transport de l'energie est particulierement domine par le transfert radiatif (flux de rayonnement x). Les modeles decrivant les proprietes radiatives de ces plasmas sont extremement sensibles aux opacites (absorption au rayonnement x) de la matiere. Ce travail est centre autour de l'etude experimentale des proprietes radiatives des plasmas chauds rencontres en interaction laser-matiere, et plus particulierement sur l'etude des opacites. Au max planck institut fur quantenoptik a garching, les coefficients d'absorption de l'aluminium (transitions 1s-2p), du fer (transitions 2p-3d), du samarium (transitions 3d-4f) ont ete mesures dans le domaine du kev a des temperatures electroniques relativement moderees ( 20 ev). Des plasmas dans des conditions homogenes de temperature et de densite, proches de l'equilibre thermodynamique local, ont ete obtenus en utilisant le chauffage radiatif de cavites irradiees par laser. L'analyse de ces mesures a permis de comprendre et d'ameliorer certains codes de calcul de coefficients d'absorption spectrale et d'hydrodynamique radiative. Au luli, les experiences sur le bore (transitions 1s-2p) ont permis de valider la faisabilite de la mesure de la temperature electronique dans un plasma peu chaud (quelques dizaines d'ev).
8
DUNAND, VERONIQUE. "Les opacites stellaires et nodulo-stellaires inferieures ou egales a 1 cm : apport de l'imagerie". Amiens, 1991. http://www.theses.fr/1991AMIEM087.
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Pepelnjak, Christine. "Les petites anomalies radiologiques pulmonaires irrégulières (S,T,U) observées chez les mineurs de charbon lorrains". Université Louis Pasteur (Strasbourg) (1971-2008), 1989. http://www.theses.fr/1989STR1M152.
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Delahaye, Franck. "From accurate atomic data to elaborate stellar modeling structure and collisional data, opacities, radiative accelerations /". Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1126315887.
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Thesis (Ph. D.)--Ohio State University, 2005.Title from first page of PDF file. Document formatted into pages; contains xx, 198 p.; also includes graphics (some col.). Includes bibliographical references (p. 191-198). Available online via OhioLINK's ETD Center.
11
LOUGNON, JEAN-PAUL. "Ganglions lymphatiques sous pleuraux : une piece de plus versee au dossier des opacites arrondies intrathoraciques peripheriques". Clermont-Ferrand 1, 1991. http://www.theses.fr/1991CLF13002.
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Morel, Samy. "Calcul des opacités de plasmas denses : éclatement du spectre dû aux interactions électroniques dans le cas du fer /". [S.l.] : [s.n.], 1994. http://library.epfl.ch/theses/?nr=1232.
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Rebstock, Bourgkard Eve. "Diagnostic precoce d'une progression des anomalies radiologiques pulmonaires chez des mineurs de charbon". Paris 11, 1996. http://www.theses.fr/1996PA11T026.
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Dobbie, Paul D. "EUV observations of opacities along the lines of sight to and in the photospheres of hot hydrogen rich white dwarfs". Thesis, University of Leicester, 1999. http://hdl.handle.net/2381/30617.
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EUV spectral observations provide an excellent means with which to examine the composition and physical state of gas along the line of sight to and in the atmospheres of hot hydrogen rich white dwarfs. Here I present the results of an analysis of a large number of spectra of hot DA type white dwarfs in the temperature range 25000K ≲ Teff ≲ 55000K obtained with the Extreme Ultraviolet Explorer satellite. No evidence for the presence of photospheric helium is found in the spectra of any of the sample objects, adding to the growing body of observations which argues against the one channel evolutionary hypothesis of Fontaine & Wesemael (1987). Furthermore, it is found that contrary to theoretical predictions and the results of earlier photometric studies, the majority of the opacity of EUV radiation observed towards those DAs with 40000K ≲ Teff ≲ 50000K is provided by HI, HeI and HeII along the line of sight as opposed to photospheric heavy metals. The 228A Lyman edge of HeII is detected in the spectra of 6 of the sample objects allowing a direct measurement of the line of sight averaged ionization fractions of hydrogen and helium. The ionization fractions towards these 6 stars can be consistent with a conclusion of a uniformly ionized ISM with weighted means of fH = 0.37 +/- 0.1 fHe = 0.28 +/- 0.04. The limits placed on the fractions towards the remaining sample objects do not contradict such a conclusion. The observed high level of helium ionization can be consistent with a model in which the blast from a nearby supernova shock ionized the gas of the LISM some million or so years ago. The most peculiar line of sight characteristics towards the DAO+dM binary RE J0720-318 revealed by the unusually large HeI edge at 504A(e.g. fH ~ 0.9; Burleigh, Barstow & Dobbie 1997), has been attributed to the presence of an ionized cloud lying along this line of sight at a distance of 123-170 pc.
15
Tremblay, Bruno. "Immanences/transcendances : pour une peinture résiduelle du sacré, [suivi de] : Exposition :opacité et extase : méditation sur les douleurs intimes /". Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1998. http://theses.uqac.ca.
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Silva, Cristiane Maria da Costa 1977. "Study of demarcated enamel opacities in deciduous and permanent molars = Estudo de opacidades demarcadas de esmalte em molares decíduos e permanentes". [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290873.
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Orientador: Fábio Luiz MialheTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Doutorado
Saude Coletiva
Doutora em Odontologia
17
HLIL, GNELBIN NICA. "Les accidents du travail et les maladies professionnelles. Opacite sociale et sante du travailleur dans le regime capitaliste - un cas : la france (discours - chiffres - histoire)". Université Marc Bloch (Strasbourg) (1971-2008), 1991. http://www.theses.fr/1991STR20039.
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Cette these se propose de demontrer les mecanismes des resistances sociales qui entourent la sante au travail dans le regime capitaliste analyser les discours, les chiffres (1969-1988) et l'histoire (du 19e s, a nos jours) des a. T et m. P en france | les discours (patronaux et ouvriers) font apparaitre la naturalisation du phenomene. Ils consacrent la notion de risque au travail et masquent l'adhesion a l'ideologie qui fait dependre la sante du profit escompte. Les chiffres revelent les effets sociaux que produit du social cristallise sur les representations sociales. Ils demontrent les effets pervers que la retichisation des institutions sociales finit par imposer aux perceptions sociales. L'histoire temoigne que les resistances sociales depuis le 19e s. N'ont pu se constituer et se maintenir successivement que parce que chaque periode a su les organiser pour qu'elles paraissent naturelles et non sociales. Autrement dit, nous avons cher che a prouver : l'antinomie existante entre deux profits et la sante dans le systeme capitaliste, ce contrairement aux croyances "scientis tes" couramment admises. Alors l'opacite sociale qui entoure la sante du travailleur ne devient donc en realite qu'une tentative d'evacuation de l'explication sociale des faits sociauxThis thesis means to prove the works of social resistance wich surround the health for in the capitalist system : to parse a speech, the numbe s (1969-1988) and the history (of nineteenth century to nowadays) of working accidents accidents and occupationals diseases in france| the speeches (employers and workers) make visible the naturalization of the phenomenon. They have a smaltering risk at work and mask the adherence to ideology wich rely on health in order to take the fetichism tage. The numbers indicate the depraved effects that the fetichism of social establishment end to impose on collecting benfits. The history gives evidence of the social resistance since nineteenth century cannot incorporate and maintain successively because each erahas known how to organize them so that they appear natural and not social. In other words, we have tried to prove : existing between two benefits and the health in the capitalist system ; this is unlike to "scientists" belief generally admitted. In that case, the social opaqueners wich encircle the worker health becomes therefore in reality an evacuation attempt of social explanation of social facts
18
Gulameabasse, Ikbal. "Un cas méditerranéen de fish-eye-disease "maladie des yeux de poissons"". Bordeaux 2, 1990. http://www.theses.fr/1990BOR25184.
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Suranyi, Gisèle. "Le masque énigmatique dans La Comédie humaine". Paris 4, 2006. http://www.theses.fr/2006PA040144.
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Contre toute attente, le masque occupe une place prépondérante dans le roman balzacien. Dans les oeuvres de maturité,on remarquera qu'il existe une inadéquation entre la réalité et les apparences. Les personnages ont perdu leur transparence pour devenir obscurs, indéchiffrables et énigmatiques. Dans la société balzacienne faite d'illusions et de mensonges, le vrai n'existe pas en dehors du concensus tacite qui lui donne ce nom. Le masque s'impose donc et devient une constante. Le personnage doit jouer un rôle. L'art de paraître devient alors un savoir-faire indispensable. Marque satanique, le masque, source du Mal, provoque la destruction de l'individu et la déchéance de la société. Au sein du mysticisme balzacien, par un système mystico-physiologique, le masque se révèle être une transcription du monde surnaturel dans le monde naturel: une iconographie de l'Invisible. La résolution du masque-énigme apporte un nouveau savoir, notamment métaphysique. Par ailleurs, le masque énigmatise le récit et impose au romancier un nouveau procédé littéraire où prédomine le mystère et l'art du suspens. La forme énigmatique, forme autoritaire, structure tout le récit dans un jeu ludiqueDespite what were to be expected, the mask bears a dominating place in the novel by Balzac. In his mature works, one could notice that there is an inadequacy between the reality and appearances. The characters have lost their transparency and have become obscure, inscrutable and enigmatic. In the society according to Balzac, made of illusions and lies, the true does not exist out of the tacit consensus which gives it this name. Lying is first and becomes a permanent feature. The character has to play a part. The art of showing off becomes hence an essential know-how. A satanic sign, the mask, source of Evil, provokes the destruction of the individual and the decay of the society. Within the mysticism typical of Balzac, thanks to a mystical-physiological system, the mask turns up to be a transcription of the supernatural word into the natural word: an iconography of the Invisible. The resolution of the mask-enigma brings about a new knowledge, notably in metaphysics. Moreover, the mask turns the account more enigmatic and lays down a new literary process to the novel writer in which predominates mystery and the art of suspense. The enigmatic form, a domineering form, structures the whole story into a play activity
20
Turpault, Rodolphe. "Modelisation, approximation numerique et applications du transfert radiatif en desequilibre spectral couple avec l'hydrodynamique". Phd thesis, Université Sciences et Technologies - Bordeaux I, 2003. http://tel.archives-ouvertes.fr/tel-00004620.
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Dans certains regimes hypersoniques, le rayonnement peut enormement modifier l'ecoulement aerodynamique. Pour de telles applications, il est important d'avoir un modele qui realise un couplage fort entre l'hydrodynamique et le transfert radiatif afin d'avoir un bon comportement de la solution. Cependant, le couplage avec l'equation du transfert radiatif est en general extremement couteux et donc peu raisonnable pour des simulations multidimensionnelles instationnaires. Notre choix est d'utiliser un modele aux moments pour la partie rayonnement, ce qui est bien moins couteux. Celui-ci est base sur une fermeture entropique a la Levermore qui permet de conserver les principales proprietes de la physique. On developpe une version multigroupe de ce modele afin de pouvoir traiter des cas realistes tres dependants de la frequence. Le systeme couple resultant est hyperbolique et possede des proprietes interessantes qui sont etudiees. Ce modele radiatif est couple avec les equations de Navier-Stokes avec une approche totalement implicite et fortement couplee. De plus, pour gagner de la place memoire, on choisit d'utiliser une methode sans Jacobienne, en pratique une methode de type GMRes preconditionne. Cette methode se revele assez rapide pour pouvoir simuler des applications realistes a un cout de calcul raisonnable, ce qui n'est pas le cas de la plupart des modeles courament utilises dans la litterature. Plusieurs applications sont donnees pour illustrer le bon comportement du modele a la fois dans des configurations academiques simplifiees ou l'on peut faire des comparaisons et dans des configurations realistes comme l'ecoulement lors de l'entree atmospherique de sondes superorbitales.
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Spargoli, Fabrizio. "Three essays in banking : theory and empirics". Doctoral thesis, Universitat Pompeu Fabra, 2013. http://hdl.handle.net/10803/117854.
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This thesis revolves around financial instability and banking regulation. The first chapter examines whether the disclosure of information about banks maximizes welfare in times of crisis. Contrary to conventional wisdom, we demonstrate that transparency is optimal only if banks' distress can be efficiently resolved. The second chapter provides an explanation for the observed inability of market participants to assess banks' solvency in times of crisis. We demonstrate that banks' incentives to understate losses lead to an equilibrium where no information is available in the market in times of crisis, and this makes banks take excessive risk ex-ante. The third chapter, coauthored with Philipp Ager, provides an empirical analysis of the effects of liberalization on bank competition and bank failures. Using the relaxation of bank entry barriers in the 19th century US as a case study, we find that liberalization increases bank entry by 11% and bank failures by 2.6%.Aquesta tesi tracta sobre la inestabilitat financera i la regulació bancària. El primer capítol examina si la divulgació d'informació sobre els bancs maximitza el benestar en temps de crisi. Contràriament a la saviesa convencional, es demostra que la transparència és òptima només si els problemes dels bancs es poden resoldre de manera eficient. El segon capítol ofereix una explicació de la incapacitat observada dels participants del mercat per avaluar la solvència dels bancs en temps de crisi. Es demostra que els incentius dels bancs a subestimar les pèrdues porten a un equilibri en el qual no hi ha informació disponible al mercat en temps de crisi, i on els bancs prenen riscos excessius ex-ante. El tercer capítol, en coautoria amb Philipp Ager, proporciona una anàlisi empírica dels efectes de la liberalització sobre la competència bancària i fallides bancàries. Utilitzant la relaxació de les barreres a l'entrada dels bancs als EUA al segle XIX com a cas d'estudi, ens trobem que la liberalització augmenta l'entrada de bancs en un 11% i la fallida de bancs en un 2,6%.
22
Pianta, Fabienne. "Contribution à l'amélioration de l'opacité et de la transvision des papiers minces destinés à l'impression écriture". Grenoble INPG, 1998. http://www.theses.fr/1998INPG0170.
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Les papiers minces en raison de leur faible grammage et de leur faible epaisseur sont sujets au phenomene de transvision qui se caracterise par la vision sur le verso de la feuille de l'impression effectuee sur son recto. La transvision s'exprime a partir de la mesure des facteurs de reflectance des papiers imprimes et non imprimes et peut se decomposer en une composante de transparence et de penetration de l'encre. Les phenomenes d'agglomeration de charges minerales contenues dans les papiers minces sont analysees par microscopie electronique utilisant la fluorescence x ; l'agglomeration des charges influence les proprietes de diffusion de la lumiere des papiers. La qualite de la formation de la feuille intervient indirectement sur la transvision dans le sens ou elle influence le jugement de l'observateur et non la mesure proprement dite. L'etude qualitative de la formation realisee a montre des differences de formation en fonction de la floculation des fibres et des diverses qualites de papiers. L'introduction de nouveaux composes fibreux et mineraux dans le papier a permis d'ameliorer la transvision du papier non surface a l'amidon. Ainsi, les fibres de cellulose regeneree diminuent a la fois la composante de transparence et la composante de penetration de la transvision. On peut egalement remarquer que le remplacement du kaolin calcine par des charges siliceuses permet de diminuer la composante de penetration de la transvision. Une nouvelle technique de precipitation de carbonate de calcium favorisant la forme aciculaire a par ailleurs ete etudiee. Cette methode permet de precipiter a l'interieur des fibres un carbonate de forme aciculaire. Nous avons obtenus de meilleures caracteristiques mecaniques du papier ainsi qu'une meilleure retention des particules. Les traitements de surface ont egalement ete etudies en enduisant le papier en size press avec une sauce legerement pigmentee. Cette methode est interessante du point de vue economique car l'utilisation d'un pigment en forme de plaquette moins onereux que le liant permet de reduire a la fois la composante de penetration de la transvision et les couts de production tout en ameliorant legerement les proprietes optiques. Les essais effectues au laboratoire ont pu etre reproduits sur la machine des papeteries du leman.
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Capllonch, Begoña. "De la plausibilitat referencial del llenguatge poètic: Francis Ponge, o el cas d'una poètica referencialista". Doctoral thesis, Universitat Pompeu Fabra, 2010. http://hdl.handle.net/10803/7449.
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L'objecte d'aquesta tesi ha estat el de defensar, a partir de l'exemple de l'obra de Francis Ponge, la plausibilitat referencial del llenguatge poètic, supòsit tot sovint rebatut a causa d'una radicalització del tòpic de l'autoreferencialitat poètica i per un planteig en suma restringit del concepte de la referencialitat. Però que un poema es constitueixi en tant que específica configuració significant no hauria d'implicar un menyscabament de la seva capacitat de representació, perquè si la poesia és creació mitjançant el llenguatge, tot allò que jutgem poètic no dimanaria sinó de la mateixa idiosincràsia de l'expressió verbal. Així doncs, hem argumentat, en primer lloc, l'efectivitat referencial del llenguatge ordinari per tal d'il·lustrar tot seguit la del poètic i, en particular, la que explicitaria el verb de Francis Ponge, atès que la poètica d'aquest autor es caracteritza, precisament, pel fet d'obstinar-se en una convençuda referencialitat: la que l'impel·lí a dirigir-se envers les coses; la que el dugué a submergir-se en les paraules. El objeto de esta tesis ha sido el de defender, a partir del ejemplo de la obra de Francis Ponge, la plausibilidad referencial del lenguaje poético, supuesto a menudo rebatido a causa de una radicalización del tópico de la autorreferencialidad poética y por un planteamiento en suma restringido del concepto de la referencialidad. Pero que un poema se constituya en tanto que particular configuración significante en modo alguno implicaría un menoscabo de su capacidad de representación, porque si la poesía es creación mediante el lenguaje, todo lo que juzgamos poético no dimanaría sino de la propia idiosincrasia de la expresión verbal. Así pues, hemos argumentado, en primer lugar, la efectividad referencial del lenguaje ordinario para ilustrar a continuación la del poético y, en particular, la que explicitaría el verbo de Francis Ponge, pues la poética de este autor se caracteriza, precisamente, por obstinarse en una convencida referencialidad: la que lo impulsó a dirigirse hacia las cosas; la que lo condujo a sumergirse en las palabras.
Starting from Francis Ponge's work, this PhD thesis argues for the referential plausibility of the poetic language. This assumption has often been contested partly because of the cliché of poetic self-referentiality and partly because the concept of referentiality has had an extremely restricted approach. This thesis suggests that, on the contrary, a poem's capability of becoming a particular and significant configuration does by no means imply a lessening of its representative force. Indeed: if poetry is creation by means of language, everything we judge as poetic stems solely from the idiosyncrasy of verbal expression. Thus, the thesis argues for the referential efficiency of ordinary language to then illustrate the referential efficiency of the poetic. It focuses in particular on the verbum as put forth by Francis Ponge. This author's poetics is best characterized by its persistence in a convinced referentiality, which leads Ponge to address things, and which takes him to sound the depths of words.
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Hetzler, Adam C. "Quantification of Uncertainties Due to Opacities in a Laser-Driven Radiative-Shock Problem". Thesis, 2013. http://hdl.handle.net/1969.1/149343.
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This research presents new physics-based methods to estimate predictive uncertainty stemming from uncertainty in the material opacities in radiative transfer computations of key quantities of interest (QOIs). New methods are needed because it is infeasible to apply standard uncertainty-propagation techniques to the O(105) uncertain opacities in a realistic simulation. The new approach toward uncertainty quantification applies the uncertainty analysis to the physical parameters in the underlying model used to calculate the opacities. This set of uncertain parameters is much smaller (O(102)) than the number of opacities. To further reduce the dimension of the set of parameters to be rigorously explored, we use additional screening applied at two different levels of the calculational hierarchy: first, physics-based screening eliminates the physical parameters that are unimportant from underlying physics models a priori; then, sensitivity analysis in simplified versions of the complex problem of interest screens out parameters that are not important to the QOIs. We employ a Bayesian Multivariate Adaptive Regression Spline (BMARS) emulator for this sensitivity analysis. The high dimension of the input space and large number of samples test the efficacy of these methods on larger problems. Ultimately, we want to perform uncertainty quantification on the large, complex problem with the reduced set of parameters. Results of this research demonstrate that the QOIs for target problems agree at for different parameter screening criteria and varying sample sizes. Since the QOIs agree, we have gained confidence in our results using the multiple screening criteria and sample sizes.
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Hsu, Yea H., i 許雅慧. "Late changes in lens opacities in subjects with prolonged low dose-rate γ-irradiation". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/92628840998875909231.
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碩士國立陽明大學
環境衛生研究所
91
Abstract More than two hundreds of children less than 20 years old once stayed in the radio-contaminated apartments in Taipei area were registered through a comprehensive epidemiological study since 1995-1998. They were found to be shown with exposure-dependent increases in their lens opacities at the first lens examination at the end of 1998. In order to understand if the changes in lens opacity are associated with time since relocation, 41 boys and 32 girls were followed-up three to five years after the first lens examination. Age and sex matched reference group were examination as the reference group who lived in north Taiwan during this study period. The lens opacity dots during the repeated measurements were increased 5.1±4.2 in the left eyes and 5.0±5.0 in the right eyes, while the exposure were 190.8±356.5 mSv. The change rate in lens dots (dots/years or month) were significantly increased and were associated with the exposure by TCD (P=0.01).The lens opacity in the exposure group were more than the non- exposure group. Though these children had relocated from exposure for a long duration, continuous changes damage in the lens by previous prolonged low dose-rate radiation exposure, especially at the young group. It is suggested that they are commended move out of contaminated buildings in earliest days to avoid further lens damage.
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Salameh, Nathalio. "Molar-incisor hypomineralization revisited: aspects, distribution and aetiology". Master's thesis, 2019. http://hdl.handle.net/10284/8671.
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A hipomineralização molar-incisiva (MIH) é um defeito disfuncional da mineralização do esmalte de um ou mais dos primeiros molares permanentes associados ou não aos incisivos permanentes. É caracterizada por opacidades demarcadas que variam de branco, amarelo a acastanhado. A gravidade é variável e pode levar à quebra do esmalte e causar acúmulo de placa, hipersensibilidade e cáries.
A média de prevalência é de cerca de 13,3%, está espalhada em todo o mundo e existem diferentes variações por país e região.
A etiologia ainda é desconhecida e está associada a fatores pré, peri e pós-natais, além de fatores genéticos envolvidos. A causa é multifatorial e está associada a circunstâncias ambientais.Molar-incisor hypomineralisation (MIH) is a dysfunctional defect of the mineralization of the enamel of one or more of the first permanent molars associated or not to permanent incisors. It is characterized by demarcated opacities that range from white, yellow to brownish. The severity is variable and it can lead to breakdown of the enamel and causes plaque accumulation, hypersensitivity and caries. The prevalence average is about 13.3 %, it is spread worldwide and there are different variations by country and region. The etiology is still unknown and it is associated with pre, peri and post-natal factors as well as genetic factors are involved. The cause is multifactorial and associated with environmental circumstances.
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Costa, Rita Teixeira Pinto da. "Nascimento prematuro e defeitos de desenvolvimento de esmalte: revisão sistemática". Master's thesis, 2021. http://hdl.handle.net/10284/10706.
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Objetivo: Perceber se o nascimento prematuro está associado com uma maior probabilidade das crianças apresentarem defeitos de desenvolvimento de esmalte nos dentes decíduos e nos molares e incisivos permanentes. Metodologia: Pesquisa bibliográfica de artigos publicados nas bases de dados eletrónicas PubMed, B-ON e ScienceDirect. A identificação e exclusão da evidência seguiu os critérios PRISMA, tendo sido estipulados fatores de inclusão e de exclusão específicos para a seleção dos artigos. A avaliação metodológica dos estudos foi realizada através da Escala de Newcastle-Ottawa.
Resultados: Dos 180 estudos identificados, 17 foram incluídos. Os estudos indicam que a prematuridade está associada ao surgimento de defeitos de desenvolvimento de esmalte e que o defeito mais prevalente é a hipoplasia de esmalte, um dos defeitos mais intimamente relacionados com a cárie dentária nas crianças.
Conclusão: As crianças com nascimento prematuro devem ser incluídas num programa de cuidados de saúde oral mais exigente uma vez que apresentam mais frequentemente alterações de estrutura que os tornam mais suscetíveis ao desenvolvimento de outras condições orais.Objective: Understand whether preterm birth is associated with a higher probability of children having developmental defects of enamel in primary teeth and in permanent molars and incisors. Methodology: Bibliographic search of articles published in the electronic databases PubMed, B-ON and ScienceDirect. The identification and exclusion of evidence followed the PRISMA criteria, with specific inclusion and exclusion factors being stipulated for the selection of articles. The methodological evaluation of the studies was performed using the Newcastle-Ottawa Scale. Results: Of the 180 studies identified, 17 were included. Studies indicate that prematurity is associated with the appearance of enamel developmental defects and that the most prevalent defect is enamel hypoplasia, one of the defects most closely related to dental caries in children. Conclusion: Children with preterm birth should be included in a more demanding oral health care program as they more often present structural changes that make them more susceptible to the development of other oral conditions.