Thesis (M.S. in Electrical Engineering)--Washington State University. / Includes bibliographical references.

Bachelor-Arbeit Univ. St. Gallen, 2008.

Thesis (Ph. D.)--University of Texas at Austin, 2008. / Vita. Includes bibliographical references.

No description available.

The purpose of this dissertation is to explore the relationship between fertility rates and the economy in Venezuela. In particular, it looks at the extreme fluctuations in oil revenues, Venezuela's main source of income, in the 1970s and their impact on fertility. It uses the 1998 National Survey of Population and Family collected in Venezuela by The Central Office of Statistics and Information to estimate a Poisson model of total fertility by union cohort and to empirically investigate changes in childbearing patterns. The results show that compared to the 1967-1968 union cohort, all subsequent union cohorts decline in total fertility in the first 14 years after entering the first union. This finding raises the possibility that the period fertility rate stall and reversal of the 1970s are not associated with rises in total fertility. Further, the simple two period model of fertility timing developed for this study illustrates how females may change their fertility timing by responding to temporary changes in income, either through changes in wages or changes in the amount of transfers. Also, the duration analysis presents differences in childbearing patterns where the boom cohort seems to be at a higher risk of an additional child for lower parities, but at a lower risk for higher parities when compared to the bust cohort. These differences seem to remain even after controlling for individual characteristics or secular changes between the two cohorts. This study is important, because it highlights how sharp and short changes in economic conditions faced by a Venezuelan household induce a change in the timing of birth, thereby creating unexpected moves in the period fertility rates. Understanding the source of these moves can help to plan for them in the future. / Ph. D.

No description available.

Esse trabalho tem como foco a condição mencionada acima, nomeada como Transtorno do Desenvolvimento da Coordenação (TDC) pela AMERICAN PSYCHIATRIC ASSOCIATION DSM IV (2002) e Transtorno específico do desenvolvimento motor, pela ORGANIZAÇÃO MUNDIAL DA SAÚDE - CID-10 (1993). Foi discutido que a base da classificação usada nas pesquisas acerca desse transtorno tem como finalidade primária o diagnóstico clínico, e também apontado as conseqüências desse tipo de definição para orientação de pesquisas. A heterogeneidade das amostras de TDC utilizadas em pesquisas prévias pode ser vista como um obstáculo à própria investigação do fenômeno. Foi explorada uma possibilidade de superar esse problema através de uma abordagem diferencial, na qual se buscou diferença na capacidade de organização temporal do movimento (timing) dentro da própria população que sofre desse transtorno, na tentativa de caracterizar grupos com maior homogeneidade. Para isso 44 sujeitos, entre 9 e 11 anos, foram selecionados com base no seu desempenho do teste MABC (HENDERSON & SUGDEN, 1992), sendo 20 sujeitos com TDC e 24 normais. Esses sujeitos foram submetidos a uma bateria de tarefas de timing para caracterizá-los. As variáveis foram analisadas conjuntamente através de uma análise de clusters. O exame do coeficiente de fusão e observação do dendograma sugeriu a partição em dois clusters. Os resultados mostraram que os sujeitos uma dos clusters podem ser caracterizados com relação apenas ao timing sincronizório. As demais variáveis de timing não discriminam os dois subgrupos / The focus of this study was the condition above mentioned, named Developmental Coordination Disorder (DCD) by the AMERICAN PSYCHIATRIC ASSOCIANTION DSM IV (2002) and by WORLD HEALTH ORGANIZATION CID - 10 (1993). It was discussed that the purpose of the classification DSM IV and CID 10 is to guide the clinical diagnostic, and pointed out the implications of this criteria to orient how to select subjects in the researches. The heterogeneity of the DCD samples used in previous researches can be seen as a hindrance to investigating the problem itself. To try to overcome that obstacle, a differential approach was used, in which the difference in timing within the population who suffers that disorder was searched for, in order to characterize more homogenous groups. We selected 44 children, ranging from 9 to 11 years old, based on their performance in the MABC test (HENDERSON & SUGDEN, 1992), being 20 children with DCD and 24 without it (normal). The variables are analyzed together through a clusters analyzes. Examination of the fusion coefficients and the cluster dendogram suggested two groups. The results suggested that the DCD subjects who were grouped in each of the clusters can be characterized by their performance in the synchronic timing tasks only. The other timing variables do not discriminate the two subgroups

Esse trabalho tem como foco a condição mencionada acima, nomeada como Transtorno do Desenvolvimento da Coordenação (TDC) pela AMERICAN PSYCHIATRIC ASSOCIATION DSM IV (2002) e Transtorno específico do desenvolvimento motor, pela ORGANIZAÇÃO MUNDIAL DA SAÚDE - CID-10 (1993). Foi discutido que a base da classificação usada nas pesquisas acerca desse transtorno tem como finalidade primária o diagnóstico clínico, e também apontado as conseqüências desse tipo de definição para orientação de pesquisas. A heterogeneidade das amostras de TDC utilizadas em pesquisas prévias pode ser vista como um obstáculo à própria investigação do fenômeno. Foi explorada uma possibilidade de superar esse problema através de uma abordagem diferencial, na qual se buscou diferença na capacidade de organização temporal do movimento (timing) dentro da própria população que sofre desse transtorno, na tentativa de caracterizar grupos com maior homogeneidade. Para isso 44 sujeitos, entre 9 e 11 anos, foram selecionados com base no seu desempenho do teste MABC (HENDERSON & SUGDEN, 1992), sendo 20 sujeitos com TDC e 24 normais. Esses sujeitos foram submetidos a uma bateria de tarefas de timing para caracterizá-los. As variáveis foram analisadas conjuntamente através de uma análise de clusters. O exame do coeficiente de fusão e observação do dendograma sugeriu a partição em dois clusters. Os resultados mostraram que os sujeitos uma dos clusters podem ser caracterizados com relação apenas ao timing sincronizório. As demais variáveis de timing não discriminam os dois subgrupos / The focus of this study was the condition above mentioned, named Developmental Coordination Disorder (DCD) by the AMERICAN PSYCHIATRIC ASSOCIANTION DSM IV (2002) and by WORLD HEALTH ORGANIZATION CID - 10 (1993). It was discussed that the purpose of the classification DSM IV and CID 10 is to guide the clinical diagnostic, and pointed out the implications of this criteria to orient how to select subjects in the researches. The heterogeneity of the DCD samples used in previous researches can be seen as a hindrance to investigating the problem itself. To try to overcome that obstacle, a differential approach was used, in which the difference in timing within the population who suffers that disorder was searched for, in order to characterize more homogenous groups. We selected 44 children, ranging from 9 to 11 years old, based on their performance in the MABC test (HENDERSON & SUGDEN, 1992), being 20 children with DCD and 24 without it (normal). The variables are analyzed together through a clusters analyzes. Examination of the fusion coefficients and the cluster dendogram suggested two groups. The results suggested that the DCD subjects who were grouped in each of the clusters can be characterized by their performance in the synchronic timing tasks only. The other timing variables do not discriminate the two subgroups

Au cours de cette thèse, nous présenterons les effets de l'introduction en bourse de titres appartenant au secteur technologique. Exploration qui porte sur la période 1997 - 2008 selon un positionnement théorique puis un développement des hypothèses. Nous conclurons par la validation empirique de nos échantillons. Les méthodes les plus usuelles seront exploitées quant à la détection des rendements à long terme, temps événementiels ou calendaire, tout en prenant en compte la sensibilité des modes de calcul de la performance et méthodes d'évaluation des rendements attendus dans l'obtention et analyse des résultats. Ces derniers, reflet de problèmes statistiques, seront dès lors, soumis aux solutions préconisées dans la littérature scientifique. Aussi, compte tenu des spécificités du marché français, nous nous appuierons sur le modèle à trois facteurs de Fama & French, démonstration par le résultat selon le coefficient beta, de valeurs de constante presque nulles et non significatives y compris sur les rendements excédentaires. Enfin, sera souligné le déclin des performances opérationnelles des firmes sur le marché Euronext Paris selon un portefeuilles de référence. Phénomène dû à une fenêtre d'opportunité lors de l'introduction en bourse coïncidant avec un pic de performance (rentabilité économique et taux de marge économique) en période de pré-cotation. Ajoutons à cette cotation souvent accompagnée d'une forte croissance, une restructuration du bilan se traduisant par une baisse du taux d'endettement. / In this thesis, we present the effects of the IPO titles owned by the technology sector. Exploration which covers the period 1997-2008 according to a theorical positioning and development assumptions. We conclude with the empirical validation of our samples.

No description available.