Made available in DSpace on 2016-04-28T14:16:39Z (GMT). No. of bitstreams: 1 Andreza Polizello.pdf: 806973 bytes, checksum: 2f1d51dd54a25808c194bffdd9f6ab2c (MD5) Previous issue date: 2009-05-14 / Secretaria da Educação do Estado de São Paulo / Francis Galton (1822-1911) made important contributions in several fields of science. Among other things, he was the founder of the Biometric School developed by Karl Pearson and Walter Frank Raphael Weldon. The aim of this dissertation is to discuss Galton s ideas on inheritance developed during the period between 1855 (when he published his first works on the subject) and 1889 (when he published the book Natural inheritance), especially focusing his theory of stirps (1872), taking into account the other microscopic models of inheritance proposed in the 19th century. Besides that, it will compare Galton s theory of stirps to Darwin s hypothesis of pangenesis. Moreover, it will try to detect if there were significant changes in Galton s thought concerning the subject during this period. It will also try to elucidate if the low impact received by the theory of stirps was due to a weak foundation. This dissertation contains an introduction and five chapters. Chapter 1 presents some microscopic models of inheritance which were proposed during the 19th century. Chapter 2 discusses Darwin s hypothesis of pangenesis and its test made by Galton. Chapter 3 analyses Galton s theory of stirps. Chapter 4 discusses about the development of Galton s theory of heredity from 1865 to 1892. Chapter 5 provides some final remarks on the subject. This study led to the conclusion that Galton s proposal presented some peculiarities which differentiated it from the other ones of his time such as the experimental test of pangenesis, the performance of several experiments with peas, dogs and the study of genealogies and in addition to this, his concern in giving a statistical treatment to the data. A comparison between his several works showed a continuity of his thoughts on heredity with no significant changes / Francis Galton (1822-1911) trouxe importantes contribuições para diversos campos da ciência. Entre outras coisas, ele foi o fundador da Escola biometricista desenvolvida por Karl Pearson e Walter Frank Raphael Weldon. O objetivo desta dissertação é discutir as idéias de Galton acerca da herança desenvolvidas durante o período compreendido entre 1855 (quando ele publicou seus primeiros trabalhos sobre o assunto) e 1889 (quando ele publicou seu livro Natural inheritance), focalizando especialmente sua teoria das estirpes (1872), levando em conta os outros modelos microscópicos de herança propostos durante o século XIX. Além disso, comparará a teoria das estirpes de Galton com a hipótese da pangênese de Darwin. Procurará detectar se houve mudanças significativas no pensamento de Galton em relação ao assunto tratado durante esse período. Procurará também elucidar se o baixo impacto recebido pela teoria das estirpes se deveu a uma fundamentação fraca. Esta dissertação contém uma introdução e cinco capítulos. O Capítulo 1 apresenta alguns modelos microscópicos de herança que foram propostos durante o século XIX. O Capítulo 2 discute a hipótese da pangênese de Darwin e seu teste feito por Galton. O Capítulo 3 analisa a teoria das estirpes de Galton. O Capítulo 4 comenta sobre o desenvolvimento da teoria da hereditariedade de Galton de 1865 a 1892. O Capítulo 5 apresenta algumas considerações finais sobre o assunto. Este estudo levou à conclusão de que a proposta de Galton apresentou algumas peculiaridades que a diferenciavam das outras propostas de sua época tais como o teste experimental da pangênese, a realização de vários experimentos com ervilhas, cachorros e o estudo de genealogias e, além disso, sua preocupação em dar um tratamento estatístico aos dados. Uma comparação entre seus diversos trabalhos mostrou a existência de uma continuidade em seus pensamentos sobre hereditariedade e a ausência de mudanças significativas. Além disso, parece que o baixo impacto recebido pela teoria das estirpes de Galton não se deveu a uma fundamentação deficiente

Nous étudions, dans cette thèse, le modèle de branchement avec duplication des trajectoires d'abord introduit pour l'étude des événements rares destiné à accélérer la simulation. Dans cette technique, les échantillons sont dupliqués en $R$ copies à différents niveaux pendant la simulation. L'optimisation de l'algorithme à coût fixé suggère de prendre les probabilités de transition entre les niveaux égales à une constante et de dupliquer un nombre égal à l'inverse de cette constante, nombre qui peut être non entier. Nous étudions d'abord la sensibilité de l'erreur relative entre la probabilité d'intérêt $\mathbb{P}(A)$ et <br />son estimateur en fonction de la stratégie adoptée pour avoir des nombres de retirage entiers. <br />Ensuite, puisqu'en pratique les probabilités de transition sont généralement inconnues (et de même pour <br />les nombres de retirages), nous proposons un algorithme en deux étapes pour contourner ce problème. <br />Des applications numériques et comparaisons avec d'autres modèles sont proposés.

Indiana University-Purdue University Indianapolis (IUPUI) / By start of the 1920s, the United States had seen nearly forty years of vast accumulations of wealth by a small group of people, substantial financial speculation and a mass change in the economic base from agricultural to industrial. All of this ended in 1929 in a crushing depression that spread not only across the country, but also around the world. Hard-Boiled detective fiction first reached the reading public early in the decade initially as adventure stories, but quickly became a way for authors to express the stresses these changes were causing on people and society. The detective is the center of the story with the task of reestablishing a certain degree of order or redemption. An important character hallmark of this genre is that he is seldom able to do this, or that the cost is so high a terrible burden remains. His decisions and judgments in this attempt are formed by his relationship with the people or community around him. The goal of this thesis is to look at the issues raised in the context of how the detective relates to a person or community in the story. For analysis, six books were chosen arranged from least level of personal relationship by the detective to the most intimate. The books are Red Harvest, by Dashiell Hammett, The Big Sleep, by Raymond Chandler, The Galton Case, by Ross MacDonald, Cotton Comes to Harlem, by Chester Himes, Devil in a Blue Dress, by Walter Mosley, and I, the Jury, by Mickey Spillane. In the study of these books, a wide range of topics are presented including political ideologies, corruption, racial discrimination and family strife. Each book provided a wealth of views on these and other subjects that are as relevant today as when they were written.