Thesis (M.S.)--University of Michigan, 1991.

Thesis (M.S.)--University of Michigan, 1991.

No description available.

Kawasaki has calculated the integral homology groups of weighted projective space, and his results imply the existence of a homotopy equivalence between weighted projective space and a CW-complex, with a single cell in each even dimension less than or equal to that of weighted projective space. When the weights satisfy certain divisibility conditions then the associated weighted projective space is actually homeomorphic to such an minimal CW-complex and such decompositions are well-known in these cases. Otherwise this minimal CW-complex is not a weighted projective space. Our aim is to give an explicit CW-structure on any weighted projective space, using an invariant decomposition of complex projective space with respect to the action of a product of finite cyclic groups. The result has many cells, in both odd and even dimensions; nevertheless, we identify it with a subdivision of the minimal decomposition whenever the weights are divisive. We then extend the decomposition to stunted weighted projective space, defined as the quotient of one weighted projective space by another. Finally, we compute the integral homology groups of stunted weighted projective space, identify generators in terms of cellular cycles, and describe cup products in the corresponding cohomology ring.

No description available.

No description available.

Résumé : L’objectif principal de cette thèse est d’approfondir l’étude des modules de dimension projective infinie sur les algèbres inclinées-amassées. Dans un premier temps, nous bornerons la fonction [o barré] d’Igusa-Todorov dans le cadre des algèbres inclinées-amassées de type An et ~ An. Subséquemment, nous donnerons une preuve combinatoire de la périodicité des premiers syzygies des modules de corde et de bande sur de telles algèbres. Grâce à cette périodicité, nous serons en mesure de borner supérieurement la [o barré]-dimension d’Igusa-Todorov. Nous caractériserons, dans une deuxième partie, les modules de dimension projective infinie de l’algèbre d’endomorphismes End C (T), où C’est une catégorie triangulée possédant un objet T maximal 1-orthogonal. Nous montrerons qu’un End C(T)-module M est de dimension projective infinie si et seulement si son idéal de factorisation IM End C(T[1]) est non nul. De plus, inspirés par les travaux sur les hamacs de Brenner, Ringel et Vos- sieck ([7], [26]), nous décrirons et regrouperons les modules de dimension projective infinie en un nouvel ensemble, appelé balançoire, particulièrement localisable dans le carquois d’Auslander-Reiten de End C(T). // Abstract : The writing of this thesis was guided by a single main idea; to go deeper in the study of infinite projective dimension modules on cluster-tilted algebras. At first, we will find an upper bound for the function [o barré] of Igusa-Todorov in the framework of the cluster-tilted algebras of type An and ~ An. Subsequently, we will give a combinatorial proof of the periodicity of the first syzygy of a string and a band module on such algebras. With this periodicity, we will be able to bound the [o barré]-dimension of Igusa-Todorov. In the second part, we will characterize infinite projective dimension modules by explaining their exact positions in the Auslander-Reiten quiver of the algebra End C(T), where C is any triangulated category and T a 1-maximal orthogonal object of C. We show that an End C(T) -module M is of infinite projective dimension if and only if its factorization ideal IM End C(T [1]) is nonzero. In addition, inspired by the works on hammocks by Brenner, Ringel and Vossieck ([7], [26]), we will describe and regroup in a new set, called a swing, the modules of infinite projective dimension especially localizable in the quiver of Auslander-Reiten of End C(T). [Symboles non conformes].

Slides of TAT cards 1 and 2 were shown to 87 college students asked to write stories about them. Subjects also ranked the importance of 5 attributes in understanding their personalities. Attribute scores from projections and centrality scores from rankings, for achievement and autonomy, were regressed onto college GPA, trail-making, and autonomy by life history. Predictions failed to reach suitably low significance levels. Subscaling the life history questionnaire by factor analysis and subsequently regressing toward subscales resulted in multiple correlation significant at p < .01. Important to the model was the significant (p < .02) improvement in using the attribute by centrality interaction over either variable alone. Results were discussed in terms of a cognitive model for projectives.

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

A obesidade é uma doença crônica que atinge milhares de pessoas. Considerada de alto risco e com graves conseqüências para a saúde física e mental, sua incidência na infância tornou-se ponto importante a ser investigado e relacionado com os prejuízos que pode acarretar, tanto individualmente quanto no âmbito familiar e social. Em vista disso, este trabalho teve por objetivo contribuir para o conhecimento das características psicodinâmicas de crianças obesas e de seus pais, por meio de entrevistas e técnicas projetivas. Foram realizados cinco estudos de caso de crianças do sexo masculino, com idade variando entre 7 e 10 anos, de nível sócio-econômico médio e com IMC-por-idade ? 95% (obesidade). Os pais foram contatados, explicitados sobre os objetivos do trabalho e solicitados a participar dele juntamente com seus filhos. Após sua autorização, foram marcadas sessões com os pais, em consultório particular, para aplicação de uma entrevista semi-estruturada sobre a história pessoal da criança e o roteiro de classificação sócio-econômica (ABIPEME). Em seguida, as crianças passaram por avaliação psicológica individual, composta pela aplicação do Teste de Desenho da Figura Humana de Machover (DFH) e do CAT-A, avaliado segundo referencial proposto por Bellak. Os pais também foram avaliados por meio da aplicação do DFH e do Teste de Apercepção Temática (TAT), em forma reduzida (10 pranchas) segundo referencial proposto por Morval. Os dados obtidos mediante a aplicação do CAT-A e do TAT foram posteriormente organizados de modo a informar sobre as condições das funções do ego da criança e dos pais; adicionalmente uma avaliação dinâmica por simples inspeção, segundo o referencial psicanalítico, foi feita. Os resultados apontaram para uma dinâmica familiar específica na sustentação da obesidade da criança: uma figura materna que não ofereceu suficiente holding para o filho a fim de facilitar o processo de ilusão-desilusão e possibilitar a experiência transicional, e uma figura paterna que não foi capaz de atender à satisfação das necessidades da criança bem como apoiar a díade mãe-filho, proporcionando à mãe exercer sua função. Conseqüentemente, a criança teve dificuldade no alcance das experiências transicionais, o que gerou prejuízos na capacidade de simbolização, expressão da criatividade e estilo de ser pessoal, restando-lhe buscar o apoio concreto da realidade externa (alimento) como forma de se relacionar com o ambiente e aliviar sua ansiedade. / Obesity is a chronic illness that reaches thousands of people. Being considered of high risk and with serious consequences for the physical and mental health, its incidence in childhood became an important subject to be investigated and related to its possible damage in individual, family and social levels. Considering this, the present aimed to contribute for the knowledge of the psychodynamic characteristics of obese children and their parents, by applying projective interviews and techniques. Five case studies had been performed with 7-10-year-old, male children, average socioeconomical level, with IMC-for-age level ? 95% (obesity). The parents were invited to take part of the study with their children and were explained about the its aims. After their allowance, the parents were interviewed in the private researcher\'s office, and applied both a semi-structured interview concerning their children\'s personal history and a socioeconomic classification protocol (ABIPEME). After that, the children went through individual, psychological assessment sessions. The techniques used were Machover\'s Draw-a-Person Test (DAP) and CAT-A, whose results were analyzed according to Bellak\'s approach. The parents had also been assessed using the DAP and a reduced form of the Thematic Apperception Test (TAT), according to Morval\'s approach. The data obtained from the CAT-A and the TAT were later organized in order to inform about the ego functions\' conditions of both the child and parents; also, a dynamic evaluation by simple inspection was performed, according to the psychoanalytic approach. The results had suggested a specific familiar dynamics maintaining the child\'s obesity: on one hand, a maternal image that did not offer the son enough holding in order to facilitate the illusion-disillusion process and to make a transitional experience possible. On the other hand, paternal image that was not able to satisfy the child\'s needs, as well as to support the mother-son dyad, providing the mother conditions to perform her function. Consequently, the child had problems to reach transitional experiences, which caused damages to symbolization ability, creativity expression and personal style-of-being, thus leading the child to search for concrete support in the external reality (food) as a way to have a relationship with the environment and alleviate anxiety.