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Le forgeage multi-matériaux est un procédé permettant la mise en forme et l’assemblage simultanés de matériaux différents. Ce procédé permet d’obtenir des pièces multi-matériaux avec le « bon matériau placé au bon endroit ». L’objectif des travaux de thèse est de définir les conditions nécessaires à l’établissement de la liaison métallurgique par forgeage à l’interface d’un couple d’aciers. Dans un premier temps, l’état de l’art a servi à l’identification les phénomènes physiques accompagnant le forgeage multi-matériaux et les paramètres clés pilotant l’établissement de la liaison métallurgique. Le principe de base de l’établissement d’une liaison passe par la fragmentation des oxydes en surface des matériaux et par l’application d’une pression de contact favorisant le contact entre les matériaux nus et la diffusion. Les deux paramètres clés identifiés sont donc la pression normale de contact et l’expansion de surface. Le protocole de caractérisation du co-forgeage mis en place comporte trois essais « simples » permettant de solliciter les interfaces avec des pressions et des expansions différentes. Ces dernières, estimées par simulation numérique de l’essai, sont mises en relation avec la qualité des liaisons obtenues évaluée, quant à elle, au travers d’observations métallographiques. Les premières simulations permettent de dimensionner les campagnes expérimentales. Celles-ci sont ensuite conduites sur les moyens de mise en forme de la plateforme VULCAIN. Les efforts de mise en forme et la géométrie globale des pièces et la répartition de matière servent de base à l’identification des paramètres de la simulation. La simulation ainsi obtenue et les observations métallographiques aux interfaces sont ensuite mises en lien. Cette démarche a permis de confirmer l’importance du rôle joué par la pression de contact et l’expansion de surface sur l’établissement d’une liaison au cours de la mise en forme du multi-matériaux. La répartition et la forme des particules d’oxydes semblent liées au chemin thermomécanique subi par l’interface. / The multi-material forging is a forming process allowing, simultaneously, the welding and shaping of multi-material parts with the right material at the right place. The purpose of the presented work is to identify the necessary conditions to obtain a metallurgical bond during forming between two different grades of steel. First, the state of the art allowed the identification of the physical phenomena occurring during multi-material forging and the determination of the key parameters of the bonding which are the contact pressure and the surface expansion at the both sides of the interface. The mechanisms to establish metallurgical bond by forging are based on the breaking and the dispersion of the oxide layer at the interface then the extrusion of the soft material through the voids generated between the oxide fragments. Second, the characterization methodology of this work is presented. It consists of three “simple” forming tests leading to different interface conditions (contact pressure and surface expansion). The first simulations allow the design of the experimental plan for each test. The comparison between simulations and experiments allows the identification of physical parameters of the simulation. Then, the contact pressure and the surface expansion of the identified simulations are used to analyze the metallographic structure and the bonding at the interface.The developed work confirms the major effect of the contact pressure and the surface expansion on the establishment of a metallurgical bond during multi-material forming. The size and the shape of the oxide particles seem to depend on the thermomechanical path at the interface.

This study reviews graphic indicators (GI) of homosexuality in the Human Figure Drawing Test (HFDT) which have been described in various texts on projective tests. 36 homosexual and 30 heterosexual men were enrolled, all middle-class and aged 18-50. Each participan! drew three figures (man, woman and themselves). Information from the literature, the Gis from the study, and the expertise of a group of psychologists concerning which Gis describe homosexuality in HFDTs were analyzed. Results show that large differences do not exist between Gis of drawings by homosexual men and heterosexual men. However, three characteristic indicators were found in the drawings of homosexual men (Semi-Nude Female and Self Figures, Female Figure with Cupid Arch Mouth, and Self Figure with Large/ Emphasized Eyes) and one indicator in those by heterosexual males (Male Figure with Empty Eyes). Almost al! of the Gis found in the literature fail to describe homosexuality and that clinicians continue to be influenced by stereotypic conceptions of homosexuality. / El estudio revisa los indicadores gráficos (IG) sobre homosexualidad en el Dibujo de la Figura Humana descritos en diversos textos sobre pruebas proyectivas. Participaron 36 hombres homosexuales y 30 hombres heterosexuales de clase media (18-50 años), quienes realizaron tres dibujos (hombre, mujer y sí mismo). Se analizaron los IG resultantes del estudio, la información de la literatura y lo que señalan un grupo de psicólogos sobre los IG que describen homosexualidad. Los resultados revelan que no existen mayores diferencias entre los IG de los dibujos de los hombres homosexuales y de los heterosexuales; sólo se encontraron tres indicadores característicos en los hombres homosexuales (Boca Arco de Cupido en la Figura Femenina, Ojos Grandes/Remarcados en la Figura Sí Mismo y Figura Semidesnuda en las figuras Femenina y Sí Mismo) y un indicador en los hombres heterosexuales (Ojos Vacíos en la Figura Masculina). Casi todos los IG que señala la literatura no resultan válidos para describir las homosexualidades y los clínicos manejan concepciones estereotipadas sobre la homosexualidad.

[pt] O teste do desenho do relógio tem ampla utilização para avaliar cognição no envelhecimento. Apesar de existirem diversos sistemas de pontuação, as estratégias de planejamento da construção do desenho não são mensuradas. O objetivo desta dissertação foi mapear, descrever e classificar as estratégias de planejamento e organização da construção do desenho do relógio. Para tanto, os diferentes padrões de sequência de ações para a construção do desenho foram classificados. 77 idosos saudáveis frequentadores da Casa de Convivência e Lazer do Rio de Janeiro foram avaliados. Os resultados mostraram heterogeneidade nos padrões adotados pelos idosos, sendo que os predominantes foram uma sequência geral (círculo-número-centro-ponteiro) e uma numérica, seguindo um padrão sequencial de ordem crescente. A estratégia círculo-número-centro-ponteiro (sequência geral) e a Quadrante (sequência numérica) foram as que tiveram associação acima do esperado, com medidas que avaliam bom desempenho em planejamento. Esta nova classificação complementa os critérios de pontuação semi-quantitativos e qualitativos existentes. / [en] The Clock drawing Test is widely used to evaluate cognition in aging. Although there are several scoring systems for the test, planning strategies of clock drawing construction are not measured. The objective of this dissertation was to map, describe and classify planning and organization strategies of clock drawing construction. Therefore, different action sequence patterns for clock drawing construction were classified. 77 healthy older adults from community centers, called Casas de Convivência in Rio de Janeiro were evaluated. The results showed heterogeneity in the patterns adopted by the elderly, and the predominant ones were a general sequence (circle-number-center-hand) and a numerical one following a sequential pattern of increasing order. The circle-number-center-hand (general sequence) strategy and the quadrant strategy (numerical sequence) frequencies were more than expected when associated with measures that evaluate good performance in planning. This new classification complements the previous existing semi-quantitative and qualitative scoring criteria.

This graduation work is aboutthe typical characteristics of children diagnosed with learning disabilities in the color modification Wartegg drawing test. In the theoretical part, characterized the basis for research, which includes topics dealing with projective techniques and their use in children, which includes also Warteggův drawing test and its modifications. There are also topics have focused on specific learning disabilities, their social aspects, and artistic expression of children with this diagnosis and the graphic skills of children in general. Followed by part dealing with the colors, their use in psychodiagnostic and their symbolism. This section was prepared analyzing literature and its aim is characteristic Wartegg drawing test and color modifications.In the empirical part of the selected characters analyzed in terms of processing individual fields Wartegg drawing test, which are then processed statistically. The results of the research group are compared with the control group. The target of graduation work is determination of typical marks in processing colourmodification of Wartegg?s drawing test with learning disabilities diagnosed children compared to children of intact

[pt] Além da utilização como teste de rastreio, tem-se utilizado o Teste do Desenho do Relógio (TDR) também na avaliação de funcionamento executivo em idosos. Em dissertação de mestrado, construiu-se e validou-se um método de pontuação que classificou as estratégias de construção do TDR. A presente tese tem o objetivo de investigar as estratégias de construção do TDR em idosos com comprometimento cognitivo. 86 idosos (28 controle, 45 com transtorno neurocognitivo leve e 13 com transtorno neurocognitivo maior) participaram dos dois estudos que compuseram a tese. O primeiro analisou as estratégias de construção do TDR e o perfil neuropsicológico dos idosos e o segundo verificou a validade clínica do sistema. Os resultados apresentaram que as subcategorias associadas a melhor funcionamento executivo diminuem ocorrência à medida que o comprometimento cognitivo se acentua e as subcategorias associadas a pior funcionamento executivo aumentam frequência. Verificou-se também que a Estratégia de Sequência Geral Atípica evidenciou validade clínica para diferenciar idosos com transtorno neurocognitivo maior dos demais grupos. Conclui-se que a análise qualitativa das Estratégias de Construção do TDR tem utilidade clínica como medida de funcionamento executivo. / [en] Besides being used as a screening test, the Clock Drawing Test (CDT) has also been used to assess executive functioning in the elderly. In previous study, a scoring method that classified the Construction Strategies of the CDT was constructed and validated. This tesis aims to investigate construction strategies of CDT in elderly with cognitive impairment. 86 elderly (28 controls, 45 with mild neurocognitive disorder and 13 with major neurocognitive disorder) were the participants of the thesis. It was subdivided in two studies. The first one analyzed older adult s Construction Strategies of the CDT and neuropsychological profiles. The second one verified clinical validity of the system. Results showed that the subcategories associated with better executive functioning decrease occurrence as cognitive impairment increases while the subcategories associated with worse executive functioning increase frequency. Atypical General Sequence Strategy also showed clinical validity to differentiate older adults with major neurocognitive disorder from other groups. As conclusion, it is verified that qualitative analysis of the Construction Strategies of the CDT has clinical utility as a measure of executive functioning.

Human Immuno-Deficiency Virus (HIV) and Acquired Immune Deficiency Syndrome (AIDS) have many devastating impacts, including the growing number of AIDS-orphans left without care. In the study, semi-structured interviews, incomplete sentences and Kinetic family drawings were used to explore the life-experiences and perceptions of AIDS-orphans living in kinship foster care, from a Gestalt perspective. The study revealed that the majority of the AIDS-orphans included were making good contact at the contact boundary and all the respondents were not familiar with the term 'foster care'. The researcher therefore recommended that children are educated about foster care at school, thus possibly increasing the awareness of foster care in South Africa, thus possibly increasing the provision of homes for the vastly growing numbers of AIDS-orphans in our country and perhaps make a difference in society. / Sociology / M. Diac. (Play therapy)

Human Immuno-Deficiency Virus (HIV) and Acquired Immune Deficiency Syndrome (AIDS) have many devastating impacts, including the growing number of AIDS-orphans left without care. In the study, semi-structured interviews, incomplete sentences and Kinetic family drawings were used to explore the life-experiences and perceptions of AIDS-orphans living in kinship foster care, from a Gestalt perspective. The study revealed that the majority of the AIDS-orphans included were making good contact at the contact boundary and all the respondents were not familiar with the term 'foster care'. The researcher therefore recommended that children are educated about foster care at school, thus possibly increasing the awareness of foster care in South Africa, thus possibly increasing the provision of homes for the vastly growing numbers of AIDS-orphans in our country and perhaps make a difference in society. / Sociology / M. Diac. (Play therapy)