Thesis (Ph. D.)--University of Wisconsin--Madison, 1980. / Typescript. Vita. Description based on print version record. Includes bibliographical references (leaves 85-89).

O presente estudo foi desenhado para avaliar as dimensões do Minnesota Multiphasic Personality (MMPI) em pacientes bipolares clinicamente eutímicos e controles pareados. O delineamento do estudo é caso-contole, e evidenciou que: 1. Todas as dimensões do MMPI se apresentaram alteradas com relação aos controles, exceto a escala de masculinidade-feminilidade (MF); 2. Entre os pacientes, a escala que demonstrou maior alteração foi a da dimensão paranóia (Pa). Estes achados confirmam a idéia que dimensões da personalidade, avaliada pelo MMPI, estão alteradas em pacientes bipolares. Devido a este estudo ter um desenho transversal, não é possível inferir se as alterações da personalidade foram prévias ao desenvolvimento do transtorno ou são sintomas integrais do mesmo. / The aim of this study is to assess, through the Multiphasic Minnesota Personality Inventory (MMPI), the prevalence of a specific pattern of personality disorder in bipolar patients. Patients were diagnosed with type I bipolar disorder (BD) and were treated at the Bipolar Disorders´ Program at Hospital de Clínicas de Porto Alegre (HCPA), fulfilling inclusion and exclusion criteria for this study. It is an case-control study and the results showed that Paranoia (Pa) scores were increased among bipolar patients. Besides, all clinical scales in the MMPI test were increased in bipolar subjects in comparison with controls, except for the masculinity-femininity (MF) scale. Our findings do not show a specific personality pattern among patients; however, the increase in the paranoia scale is related to several difficulties observed in bipolar patients, such as compliance to treatment, establishment of trust in interpersonal relationships, etc.

O presente estudo foi desenhado para avaliar as dimensões do Minnesota Multiphasic Personality (MMPI) em pacientes bipolares clinicamente eutímicos e controles pareados. O delineamento do estudo é caso-contole, e evidenciou que: 1. Todas as dimensões do MMPI se apresentaram alteradas com relação aos controles, exceto a escala de masculinidade-feminilidade (MF); 2. Entre os pacientes, a escala que demonstrou maior alteração foi a da dimensão paranóia (Pa). Estes achados confirmam a idéia que dimensões da personalidade, avaliada pelo MMPI, estão alteradas em pacientes bipolares. Devido a este estudo ter um desenho transversal, não é possível inferir se as alterações da personalidade foram prévias ao desenvolvimento do transtorno ou são sintomas integrais do mesmo. / The aim of this study is to assess, through the Multiphasic Minnesota Personality Inventory (MMPI), the prevalence of a specific pattern of personality disorder in bipolar patients. Patients were diagnosed with type I bipolar disorder (BD) and were treated at the Bipolar Disorders´ Program at Hospital de Clínicas de Porto Alegre (HCPA), fulfilling inclusion and exclusion criteria for this study. It is an case-control study and the results showed that Paranoia (Pa) scores were increased among bipolar patients. Besides, all clinical scales in the MMPI test were increased in bipolar subjects in comparison with controls, except for the masculinity-femininity (MF) scale. Our findings do not show a specific personality pattern among patients; however, the increase in the paranoia scale is related to several difficulties observed in bipolar patients, such as compliance to treatment, establishment of trust in interpersonal relationships, etc.

O presente estudo foi desenhado para avaliar as dimensões do Minnesota Multiphasic Personality (MMPI) em pacientes bipolares clinicamente eutímicos e controles pareados. O delineamento do estudo é caso-contole, e evidenciou que: 1. Todas as dimensões do MMPI se apresentaram alteradas com relação aos controles, exceto a escala de masculinidade-feminilidade (MF); 2. Entre os pacientes, a escala que demonstrou maior alteração foi a da dimensão paranóia (Pa). Estes achados confirmam a idéia que dimensões da personalidade, avaliada pelo MMPI, estão alteradas em pacientes bipolares. Devido a este estudo ter um desenho transversal, não é possível inferir se as alterações da personalidade foram prévias ao desenvolvimento do transtorno ou são sintomas integrais do mesmo. / The aim of this study is to assess, through the Multiphasic Minnesota Personality Inventory (MMPI), the prevalence of a specific pattern of personality disorder in bipolar patients. Patients were diagnosed with type I bipolar disorder (BD) and were treated at the Bipolar Disorders´ Program at Hospital de Clínicas de Porto Alegre (HCPA), fulfilling inclusion and exclusion criteria for this study. It is an case-control study and the results showed that Paranoia (Pa) scores were increased among bipolar patients. Besides, all clinical scales in the MMPI test were increased in bipolar subjects in comparison with controls, except for the masculinity-femininity (MF) scale. Our findings do not show a specific personality pattern among patients; however, the increase in the paranoia scale is related to several difficulties observed in bipolar patients, such as compliance to treatment, establishment of trust in interpersonal relationships, etc.

D.Ing. (Electrical & Electronic Engineering ) / In recent years, bipolar transistors have become available with large current ratings (300A-1DODA). The purpose 01 this study is to analyse the modelling 01 these devices, with a view to applying the results to detailed power electronic circuit design (for example base drive and snubber circuits). In contrast to the many curve-filling approaches existing in this field, a model which correctly represents the physical mechanisms is desirable, in order to characterise the device behaviour with a minimum number of parameters. Existing modelling techniques, which have mostly been developed for low current devices, are examined in detail to determine their validity for high current 8JTs. Alter a survey of the literature, the assumptions contained in the lundamental first order theory are investigated, together with the most important second order ellecls. This is followed by a detailed experimental investigation, to establish the dominant mechanisms for both de and dynamic operation. The behaviour 01 large power devices is dominated by conductivity modulation 01 the lightly doped collector region. This means that the Gummel-Poon model, which is based on ellects in the base is not the most appropriate for high current modelling. II also found that the the simple charge control equation can give accurate results for dynamic modelling. The dynamic saturation region 01 operation is described by a simple model, based on the quantity 01 stored charge. This is an improvement on the currently used Gummel-Poon models. The findings are all incorporated into a new model, which is included in a version of the SPICE network simulation program and then tested experimentally. The importance 01 the reverse conduction mode 01 operation is discussed and some techniques for modelling this region are presented, together with some experimental results. II is shown conclusively that the developed device based approach, models the behaviour of the devices adequately for converter design purposes, over a wide range of operating conditions.

Bipolar disorder is a serious mental disorder, affecting anywhere from 2 to 4 percent of Americans. Though research has indicated that this disorder can be devastating for patients, less is known about how the disorder impacts family members. There is no research that has considered impacts on family members adjusting to college. The purpose of the current study was to determine the extent to which having a family member with bipolar disorder impacts adjustment to college, as well as factors that might account for worse functioning. Two groups were recruited: students with a bipolar family member (n = 25) and students with no family history of the disorder (n = 50). Participants were interviewed regarding their own histories of a mood disorder, as well as mood disorder histories in their immediate families. They then completed surveys assessing adjustment to college, functioning, caregiving burden, parental relationship, and attachment style. Students with a family history of bipolar disorder had significantly lower social adjustment scores, lower personal-emotional adjustment scores, and lower financial functioning scores than students without this history. Lower scores were found even after controlling for psychopathology. Avoidant attachment behaviors, anxious attachment behaviors, and aspects of the paternal relationship were identified as potential mediators. Caregiving burden was identified as a partial mediator. Implications for families and educational institutions are discussed.

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