FundaÃÃo de Amparo à Pesquisa do Estado do Cearà / CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / à feita uma anÃlise da teoria de Avdeev-Chizhov para os campos tensoriais anti-simÃtricos de matÃria em um espaÃo-tempo curvo. Mostra-se que em um cenÃrio desse tipo, assim como no espaÃo de Minkowski, a teoria de Avdeev-Chizhov pode ser formulada como uma teoria do tipo ??4 para um campo "auto-dual complexo". Verifica-se que isto simplifica em muito o estudo dos campos de matÃria em um espaÃo-tempo com curvatura. Calculamos o tensor momentum-energia e, no final, resolvemos as equaÃÃes de Einstein para o campo de matÃria em um espaÃo-tempo do tipo Schwarzschild. / à feita uma anÃlise da teoria de Avdeev-Chizhov para os campos tensoriais anti-simÃtricos de matÃria em um espaÃo-tempo curvo. Mostra-se que em um cenÃrio desse tipo, assim como no espaÃo de Minkowski, a teoria de Avdeev-Chizhov pode ser formulada como uma teoria do tipo ??4 para um campo "auto-dual complexo". Verifica-se que isto simplifica em muito o estudo dos campos de matÃria em um espaÃo-tempo com curvatura. Calculamos o tensor momentum-energia e, no final, resolvemos as equaÃÃes de Einstein para o campo de matÃria em um espaÃo-tempo do tipo Schwarzschild.

Tese de mestrado integrado. Engenharia Civil - Especialização em Materiais e Processos de Construção. Faculdade de Engenharia. Universidade do Porto. 2011

Tese de mestrado integrado. Engenharia Civil (especialização em Vias de Comunicação). Faculdade de Engenharia. Universidade do Porto. 2008

Tese de mestr.. Engenharia Mecânica. Faculdade de Engenharia. Universidade do Porto. 2001

Tese de Mestrado Integrado. Engenharia Civil (Área de Especialização de Estruturas). Faculdade de Engenharia. Universidade do Porto. 2012

Tese de mestrado integrado. Engenharia Civil (Especialização em Materiais e Processos de Construção). Faculdade de Engenharia. Universidade do Porto. 2010

Tese de mestrado. Engenharia Informática. Faculdade de Engenharia. Universidade do Porto. 2005

Dans le cas des générations de transistors sub-14nm, l’intégration de contacts métalliques classiques soumis aux limitations de la lithographie optique ne permet pas d’atteindre les performances d’alignement requises par les règles de dessin (pitch de grille 64nm en FDSOI 10nm) et les rendements industriels. Dans le cadre de ce travail de thèse, une nouvelle architecture de contacts auto-alignés (Self-Aligned Contacts ou SAC) est adressée pour les technologies FDSOI CMOS. Tout d’abord, nous avons proposé et validé l’intégration d’un module SAC dans une route CMOS FDSOI 14nm. Nous avons aussi démontré morphologiquement la faisabilité de contacts SAC pour des pitchs plus agressifs (noeud technologique 10nm). Par le biais de simulations numériques (TCAD et SPICE) l’impact de l’intégration des contacts auto-alignés sur les performances du transistor et du circuit, en termes de capacités parasites notamment, a ensuite été évalué dans le cas de la technologie 10nm FDSOI. Finalement, différentes techniques de transfert de contraintes mécaniques dans le canal du transistor ont été analysées en vue d’améliorer les performances de PFET en 10nm FDSOI. La génération des contraintes mécaniques via les contacts sur source-drain a également été investiguée. / For sub-14nm transistor generations, the integration of classical metallic contacts subjected to optical lithography limitations prevents the fulfillment of alignment performance required by design rules (64nm gate pitch for the 10nm node) and industrial yields. In the frame of this PhD. work, an original transistor architecture featuring self-aligned contacts (SAC) is studied for CMOS FDSOI technologies. First, a SAC module has been integrated and validated on a CMOS 14nm FDSOI process flow. The feasibility of SAC integration at a more aggressive gate pitch (10nm node) has also been demonstrated morphologically. The impact of such integration on the transistor and circuit performance, in terms of parasitic capacitances especially, has been evaluated through numerical simulations (TCAD, SPICE) in the case of the 10nm FDSOI technology. Finally, several techniques inducing mechanical stress within the transistor channel have been analyzed in order to improve the device performance. Among those, the use of contacts on source-drain to induce such stress has been particularly investigated.

Por los altos índices de morbi-mortalidad de cáncer de mama, informados en diferentes estudios de investigación en el Perú y el mundo, surge este estudio titulado “Conocimiento, actitud y su relación con la práctica del autoexamen de mama en adolescentes de la I.E. Mariscal Cáceres – Tacna 2012”.El método utilizado fue descriptivo correlacional, se trabajó con la población universo de 100 adolescentes, se aplicó el cuestionario para establecer la validación entre las variables se utilizó la prueba estadística con un 95% de confiabilidad y significancia de P > 0.05.Los resultados muestran que el 65 % de adolescentes evidencian un nivel de conocimiento insuficiente, el 66% presentaron una actitud positiva y el 78% no practica el autoexamen de mama, la relación entre las variables, presenta significancia estadística según la prueba de Chi cuadrado (P < 0.05 con G.l. = 2), si existe relación entre dichas variables.

Life writing is always constituted of alternate versions of the self and the lived life of the self. The duplicities inherent in life writing are central to this study. These duplicities refer not only to the doubleness, but also to the constructedness, of life writing. My enabling assumption is that a life lived is never the same as the life written. Some of the questions at stake in the discourse of life writing include: How may the self be represented in literary form? How is biography a necessary ground of autobiography? What is the borderline between history and life story? Why and how is a lived life different from a written life? How much "truth" is there in life writing? One obvious starting point is to trace the history of selfhood, or the identity of the self. Charles Taylor's Sources of the Self: The Making of the Modern Identity (1989) provides a thorough analysis of the sources of the self in its historical transformation from Plato's time to our era. However, only recently have media theorists such as Eric Havelock (1963), Benedict Anderson (1991), Mark Poster (1995) and Ronald J. Deibert (1997) offered an estimate of how self-identity changes as technology varies, and how the form of communication alters the bases of identity. Based on discoveries in neuroscience, Paul Eakin (1999) uses narrative theory to explain why life writing is always made up of multiple versions and how the notion of selfhood is profoundly shaped by culture. William Spengemann's historical and philosophical analysis of traditional autobiographies helps to explain different forms of autobiography in terms of personal motives and cultural reasons for writing. This study shows that life writing is necessarily a process of translation in which facts must be transmuted into stories. In the process of translation, there are always alternate versions of the self, forms, media, voices, narratives, realities and finally alternate versions of fictions. By looking at seven of Carol Shields's fictions, this study aims to illustrate how Shields goes beyond models of historical, philosophical, and poetic self-presentation to find new ways and new forms for self-presentation in life writing. / October 2007