Diss.--Biologie--München--Ludwig-Maximilians-Universität, 1998. / Bibliogr. p. 94-106. Glossaire.

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

No description available.

Este trabalho tem como objeto o pensamento político de Sêneca em sua relação com a filosofia moral estoica. Nossa hipótese é a de que a construção da noção de poder político em Sêneca se dá por meio da vinculação entre duas figuras chave de seu pensamento, a do sábio (sapiens) e a do príncipe (princeps). Isto é, pretende-se mostra, precisamente na leitura do Tratado sobre a clemência (De Clementia), que existe uma íntima relação entre, de um lado, a formação moral do governante e, de outro, as formulações teóricas da doutrina estoica acerca do homem virtuoso, do sapiens. A arte política por excelência, por não se desvincular da Ética (para o estoicismo), é materializada na interrelação existente entre a figura do princeps e a figura do sapiens, implicando, portanto, a formação moral do governante como elemento imprescindível ao bom exercício do poder político. / This paper has as its object the political thought of Seneca in his relation with stoic moral philosophy. The hypothesis is that the construction of the notion of political power in Seneca occurs through the linking between two key figures of his thought, the wise (sapiens) and the prince (princeps). This is intended to show precisely the reading of the Treaty on clemency (De Clementia), that there is a close relationship between, on the one hand, the moral education of the ruler and on the other, the theoretical formulations of the Stoic doctrine of virtuous man sapiens. The political art par excellence, not to avoid its Ethics (for Stoicism), is based upon the interrelationship between the figure of the princeps and the figure of sapiens, implying therefore the moral education of the ruler as an essential element for the proper exercise of the political power.

Este trabalho tem como objeto o pensamento político de Sêneca em sua relação com a filosofia moral estoica. Nossa hipótese é a de que a construção da noção de poder político em Sêneca se dá por meio da vinculação entre duas figuras chave de seu pensamento, a do sábio (sapiens) e a do príncipe (princeps). Isto é, pretende-se mostra, precisamente na leitura do Tratado sobre a clemência (De Clementia), que existe uma íntima relação entre, de um lado, a formação moral do governante e, de outro, as formulações teóricas da doutrina estoica acerca do homem virtuoso, do sapiens. A arte política por excelência, por não se desvincular da Ética (para o estoicismo), é materializada na interrelação existente entre a figura do princeps e a figura do sapiens, implicando, portanto, a formação moral do governante como elemento imprescindível ao bom exercício do poder político. / This paper has as its object the political thought of Seneca in his relation with stoic moral philosophy. The hypothesis is that the construction of the notion of political power in Seneca occurs through the linking between two key figures of his thought, the wise (sapiens) and the prince (princeps). This is intended to show precisely the reading of the Treaty on clemency (De Clementia), that there is a close relationship between, on the one hand, the moral education of the ruler and on the other, the theoretical formulations of the Stoic doctrine of virtuous man sapiens. The political art par excellence, not to avoid its Ethics (for Stoicism), is based upon the interrelationship between the figure of the princeps and the figure of sapiens, implying therefore the moral education of the ruler as an essential element for the proper exercise of the political power.

La grotte de Tabon (Palawan, Philippines) est un site préhistorique majeur en Asie du Sud-Est. Elle a livré des fossiles d’Homo sapiens datant du Pléistocène supérieur, rares dans la région. Pourtant, son histoire demeure mal connue : d’importantes altérations physiques et chimiques compliquent la lecture de sa stratigraphie, tandis que des objets archéologiques sans contexte clair entravent l’élaboration d’une chronologie fiable. Cette étude jette un nouveau regard sur la grotte de Tabon à travers une approche pluridisciplinaire des sciences de la Terre. Elle explore notamment l’environnement et le climat des premiers hommes anatomiquement modernes dans la région. Les résultats mettent en lumière une période clef entre 40 et 33 ka BP, caractérisée par des climats plus secs, des paysages plus ouverts et une empreinte humaine marquée dans la grotte. Cette période a également été ponctuée par un court épisode d’humidité qui a laissé un spéléothème gypsifère étendu en guise de témoin. Dans l’avenir, de nouvelles approches, prenant en compte les contraintes particulières du site, pourraient permettre de souligner davantage la valeur scientifique et patrimoniale unique de la grotte de Tabon, une fenêtre sur les premiers périples de notre espèce à travers les archipels d’Asie du Sud-Est. / Tabon Cave (Palawan, Philippines) is a key prehistoric site in Southeast Asia, one of the few to have yielded Homo sapiens fossils from the Late Pleistocene. Its history remains poorly understood: heavy physical and chemical alterations have greatly complicated its stratigraphy, and contextually isolated archaeological finds hamper the construction of a clear chronology. This study reexamines Tabon Cave using a multi-pronged geosciences approach to explore environment, climate, and early modern human presence in the region. The results reveal a major period in the cave’s history between 40 and 33 ka BP, when drier climates, more open landscapes, and active human use of the cave were briefly spaced by a wet episode that left an extensive, gypsiferous speleothem. Future innovative research approaches spurred by the unique constraints of the site will undoubtedly further highlight the unique scientific and heritage value of Tabon Cave, a window into the earliest odysseys of our species across the archipelagos of Southeast Asia.

There is variation in Neandertal permanent dentition in both the size and shape of first molars. Ecogeography as well as chronology would be expected to account for at least some of the variation observed. Occlusal outlines of maxillary and mandibular first molar casts from European Neandertals, (Spy 1, Scladina 4A-4, Engis 2, l’Hortus 2, 4, 5, and 8, La Quina H5, Malarnaud 1) were generated through photostereomicroscopy and non-landmark smooth tracing methods, and occlusal areas, buccolingual breadths and mesiolingual lengths were measured by calibrated Motic 3.0MP microscope cameras. Principal component (PC) scores of elliptical Fourier harmonic descriptors were calculated using SHAPE v1.3, yielding a total of 76 and 67 PC scores for mandibular and maxillary data respectively. Of the maxillary outlines analyzed, a strong correlation exists between PC1 (58.4% of variance) and occlusal area, explaining size influence. On PC1, the smallest (Engis 2), is followed by Scladina 4A-A, Hortus 8, La Quina 5 and Spy 1. On PC2 (23% of variance), Scladina 4A-A is an outlier. On PC3 (12.6%), Hortus 8 is separated from the others whereas Scladina 4A-A is difficult to classify. PC4 accounts for 5.8% of the variance and separates Spy 1 from La Quina 5. Spy 1 appears as distinct on PC1, PC3, and PC4 while Scladina 4A-A is relatively distinct on all axes. In a cluster analysis of PC scores Spy 1 and La Quina 5 are linked by the shortest distance and joined secondarily to Hortus 8, whereas Scladina 4A-A and Engis 2 are relatively distinct from the others. Mandibular results indicate that Malarnaud is distinct on PC1 (40% of variance) and again on PC2 (27%), while La Quina 5 appears as slightly distinct on PC3 (14%), though grouped with Engis 2, while Hortus 2 and 4 group together this axis as well as PC1. PC4 (12%) again separates Malarnaud, and presents Hortus 5 as an outlier. Overall, chronology correlates better than geography to the variance observed in occlusal first molar shape in these European Neandertals, with some inconsistencies most likely due to individual biological variability. This study demonstrates a new method to compute the elliptical Fourier descriptors of molar occlusal outlines, and applies these to explain variation in these Neandertals with respect to ecogeographic and chronological situation.

In an effort to better understand patterns of genetic variation in modern African populations, I surveyed nucleotide variability at four loci in five diverse sub-Saharan African populations. First, I analyzed the mitochondrial DNA (mtDNA) and the non-recombining portion of the Y chromosome (NRY), asking specifically if similar models of population size change could be fit to re-sequencing data from these two loci when examined in the same populations. Four tests of population growth were employed and results indicated that food-producing populations best fit a model of exponential growth for the mtDNA but not the NRY, and hunter-gathering populations best fit a model of constant population size for both mtDNA and the NRY. These results are likely due to sex-specific migration or differences in the effective population sizes of males and females.Next, I examined mtDNA and NRY population structure in these same populations, to assess the relative effects of migration and effective population size on patterns of mtDNA and NRY nucleotide variability. I used an Isolation with Migration (IM) model to disentangle estimates of effective population size and migration. Results indicated that levels of mtDNA population structure are higher than those of the NRY, and female migration tends to be unidirectional while that of males is largely bidirectional. I found that in food-producing populations, male migration rate estimates are in fact higher, not lower, than those of females, while estimates of male effective population size are strikingly small. I infered that males have experienced a period of population size reduction due to replacement, and that this most likely occurred during the Bantu expansions, approximately 5,000 years ago.Finally, I assessed population structure in these populations using a multilocus approach which estimated current and ancestral effective population sizes, migration rates, split times and fraction of the ancestral population that contributed to current populations. Current and ancestral effective population sizes ranged from ~5,000-8,000 individuals. Most populations showed an increase in size relative to the ancestral population. Population split times ranged from 17-142 thousand years (KYR); the Khoisan split times were the oldest and the Niger-Congo speaking populations' split times the most recent. Since the oldest population split times precede the dates for the earliest modern humans outside of Africa, I posited that modern humans likely evolved at a time when structured populations already existed in Africa.

Thèse--Lettres--Paris--Paris IV-Sorbonne, 1977. / Bibliogr. p. XXIX-LXV . Index.

No description available.