La caractérisation des matières premières lithiques est un important moyen d’étude des territoires paléolithiques, permettant d’inférer les modes de déplacement et d’organisation des groupes humains. Le Bassin aquitain est une des provinces archéologiques les mieux documentées d’Europe. Pourtant, certains matériaux depuis longtemps reconnus au sein des collections archéologiques, restent mal identifiés (origine géographique, unicité…). C’est en particulier le cas d’un type de silex dénommé « Grain de mil » par les préhistoriens. Pour combler cette lacune, ce travail s’organise en deux temps :- Une étude pétroarchéologique de ce matériau, axée sur sa caractérisation et la détermination de son origine géographique et géologique. Cette première phase du travail a permis de définir le Grain de mil comme un matériau typique de Charente-Maritime puisque sa formation est liée à l’anticlinal de Jonzac. Elle montre aussi que les critères de sa caractérisation, principalement issus de l’analyse des faciès sédimentaires, peuvent être appliqués lors de l’étude pétro-techno-économique d’une collection archéologique.- Une caractérisation techno-économique des modes de gestion de ce matériau à l’Aurignacien ancien et récent dans les sites nord-aquitains. A l’Aurignacien ancien, les groupes circulent à travers l’ensemble du Bassin aquitain au cours de grands déplacements saisonniers ; il semble que l’exploitation du Grain de mil témoigne d’une faible circulation dans le Nord-ouest du Bassin. A l’Aurignacien récent au contraire, les territoires d’approvisionnements ont centrés sur le Nord du Bassin aquitain mais ouverts à l’Ouest voire au Nord ; le Grain de mil serait alors au coeur de larges réseaux de circulation des groupes. Les moteurs d’évolution des sociétés à l’origine de ces changements de stratégie de déplacement sont ensuite discutés, testant pour cela le rôle des facteurs environnementaux et humains. / Characterising lithic raw materials is an important means of studying palaeolithic territories, allowing modes of mobilityand the organisation of human groups to be deduced. The Aquitaine Basin is one of the best-documented archaeologicalregions of Europe. However, certain materials have long been recognised within archaeological collections without theirgeographic origin or even their uniqueness being clearly demonstrated. This is particularly the case with a specific type offlint, which prehistorians call “Grain de mil”. In order to address these shortcomings, this work was carried in two phases:- a cross-disciplinary study of this material, focusing on its petroarchaeological characterisation and its geographicand geological origins. This initial phase of analysis lead to the definition of Grain de mil flint as a material typical ofthe Charente-Maritime as its formation is tied to the Jonzac anticline. It also shows that criteria for itscharacterisation, which stem mainly from the sedimentological analysis, can be applied to the petro-technoeconomicstudy of an archaeological assemblage.- a techno-economic characterisation of the management of this material during the Early and Late Aurignacian,from northern Aquitaine sites. During the Early Aurignacian, groups move seasonally across the Aquitaine Basin;exploitation of Grain de mil flint seems to indicate little circulation in the north-west of the Basin. In contrast, duringthe Late Aurignacian, provisioning territories centre to the north of the Aquitaine Basin, but open to the west andalso to the north. Grain de mil then appears to be at the heart of large-scale networks of circulations. Finally, theunderlying forces driving these strategic changes in mobility patterns are discussed, evaluating the role of bothenvironmental and human factors.

Several river basins in the world are faced with growing water scarcity and water use conflicts attributed to increasing water demand and competition among users, climate change and variability, and environmental degradation. Addressing these challenges necessitates shifting from the traditional uncoordinated sectoral approach to more integrated and fully participatory approaches supported by credible information generated by reliable and robust technical tools. Combining engineering, economics and hydroclimatological science, hydro-economic tools are well suited to provide reliable and impartial technical information that can support multi stakeholder negotiation and decision making processes in a river basin. This research develops and applies a detailed hydro-economic model to support multi-objective water resources assessments. The model supports integrated assessments of physical and economic impacts of changes in water demand, climate conditions, water resources management objectives and policies, and other system constraints on a basin's water resources. The main contribution of this research is the systematic coupling of detailed water resources and economic assessment models that are capable of (a) representing complex physical system characteristics and constraints; (b) simulating system operation at diverse temporal and spatial scales; and (c) representing water-based economic production processes at a basin scale. The research integrates a wide range of potential climate change impacts into the hydro-economic modeling framework through consideration of multiple future climate change scenarios from 13 Global Circulation Models under the medium and high emission projection scenarios. Economic uncertainty is characterized through conjunctive use of Monte Carlo simulation and Geometric Brownian Motion techniques to generate multiple forecast traces of important economic parameters. The model is applied to the Apalachicola-Chattahoochee-Flint River basin in the southeast USA as a case study.

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No. of bitstreams: 2 Tese - Andrea de Mello Mobiglia - 2017.pdf: 1228581 bytes, checksum: 4651c264bc6e1dc88ad98290bd0dd413 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-02-17 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The objective was to evaluate the effects of antimicrobial additives and the inclusion of roughage during adaptation period in diet containing whole shelled corn (WSC, 85% WSC + 15% pelleted concentrate) on performance of Zebu bulls (Exp. 1). The Exp. 1 was realized in randomized complete block design with 2x2 factorial and five replicates. A hundred bulls were fed for 105 d with diet containing monensin (MON, 30 mg/kg DM) ou virginiamycin (VM, 25 mg/kg DM) and with or without inclusion of sugarcane bagasse as roughage (ROU or NO-ROU) in adaptation period. The Exp. 2 was parallel conducted in randomized design with two treatments (MON, 30 mg/kg DM or VM, 25 mg/kg DM) and five replicates. Ten fistulated steers were used and fed with the same diet than Exp. 1 without inclusion of roughage. A laboratorial experiment (Exp. 3) was realized at Kansas State University and its objective was to evaluate the capacity of Megasphaera elsdenii (ME) strain 41125 metabolizes a range of alternative substrates as carbon source. The experiment was designed in randomized complete blocks with six replicates. Viable cell counting, pH, and optical density were measured in media containing glucose, fructose, galactose, arabinose, xylose, maltose, sucrose, lactose, lactate, trehalose, raffinose, Fructooligosaccharide, potato starch, soy protein, succinate. In Exp. 1 and Exp. 2, antimicrobial additives, MON and VM, added to diet containing 85% WSC and 15% pellet concentrate had equal results for performance, ruminal fermentation, and apparent total tract digestibility of nutrients (P≥0.05). However, lower intake was observed in animals fed with monensin includes on diet (P≤ 0.027). Although the additive used had no effect on performance on Exp. 1, the inclusion of roughage in adaptation period showed tendentiously greater final body weight, average daily gain, and efficiency (P≤ 0.088; P≤ 0.075 e P≤ 0.094, respectively) for adaptation period (1 to 20 d) and entire feedlot period (1 to 105 d). There were no treatment effects and interactions for carcass characteristics as hot carcass weight, dressing percentage, carcass daily gain (P≥0.05). In Exp. 3, Megasphaera elsdenii was able to metabolize alternative substrates as glucose, maltose, lactate, Fructo-oligosaccharide, and fructose. However, ME had greater growth in media containing fructose, but the viable cell counting did not show consistent results with optical density. Investigations must be done to clarify the ME metabolism when fructose is used as carbon source. Accord to results obtained in this study, a roughage sorce might be included on adaptation period in diet contenting 85% whole flint corn plus 15% concentrate pellete to obtain greater animal performance. Thus, Megasphaera elsdenii is able to use alternative substrates as lactate, glucose, fructose, and maltose, maintaining their population in rumen. / Objetivou-se avaliar os efeitos de aditivos antimicrobianos e a inclusão de volumoso durante a adaptação em dietas contendo alto teor de grão de milho inteiro (85% milho + 15% concentrado peletizado) sobre o desempenho de touros zebuínos (Experimento 1). O Exp. 1 foi conduzido em delineamento de blocos casualizados em esquema fatorial 2x2 e cinco repetições. Foram utilizados 100 touros alimentados durante 105 d com dieta contendo monensina (MON, 30 mg/kg MS) ou virginiamicina (VM, 25 mg/kg MS) e com a inclusão ou não de bagaço de cana-deaçúcar como volumoso (ROU ou NO-ROU) no período de adaptação. Paralelamente foi conduzindo o Experimento 2 com o objetivo de avaliar os efeitos dos aditivos antimicrobianos sobre a fermentação ruminal e digestibilidade dos nutrientes. O experimento foi conduzido em delineamento inteiramente casualizado com dois tratamentos (MON, 30 mg/kg MS ou VM, 25 mg/kg MS) e cinco repetições. Dez bois fistulados no rúmen foram utilizados e alimentados com a mesma dieta do Exp. 1 sem a inclusão de volumoso. Experimento laboratorial (Experimento 3) foi conduzido na Kansas State University com o objetivo de avaliar a capacidade da cepa 41125 de Megasphaera elsdenii (ME) em metabolizar uma variedade de substratos como fonte de carbono. O experimento foi delineado em blocos casualizados com seis repetições. Número de células viáveis, pH e densidade ótica foram mensuradas em meios de cultura contendo glicose, frutose, galactose, arabinose, xilose, maltose, sucrose, lactose, lactato, trehalose, rafinose, frutooligossacarídeos, amido de batata, proteína de soja e succinato. No Exp. 1 e Exp. 2 os aditivos antimicrobianos, MON e VM, adicionados a dieta contendo 85% de grão de milho inteiro e 15% de concentrado peletizado tiveram resultados iguais para desempenho, fermentação ruminal, e digestibilidade aparente no trato total dos nutrientes (P≥0,05). Porém foi observado redução no consumo em animais alimentados com dieta contendo monensina (P≤ 0,027). Embora o aditivo utilizado não tenha tido efeito no desempenho no Exp. 1, a inclusão de volumoso na fase de adaptação apresentou tendencialmente um aumento no peso corporal final, ganho de peso diário e eficiência alimentar (P≤ 0,10), tanto na fase de adaptação (1 a 20 d) como para o período total de confinamento (1 a 105 d). Não houve efeito dos tratamentos ou interações entre os fatores para características de carcaça como peso de carcaça quente, rendimento e ganho de carcaça diário (P≥0,05). No Exp. 3 Megasphaera elsdenii foi capaz de metabolizar diferentes substratos, como glicose, maltose, lactato, fruto-oligossacarídeo e frutose. Entretanto, no meio de cultura contendo frutose a ME apresentou melhor curva de crescimento, mas o número de células viáveis não apresentou resultados consistentes com a densidade ótica. Investigações devem ser feitas para esclarecer o metabolismo da ME quando frutose é utilizada como fonte de carbono. Com os resultados obtidos nesta pesquisa, conclui-se que uma fonte de volumoso de baixa qualidade deve ser incluída no período de adaptação à dieta contendo 85% grão de milho inteiro e 15% de pelete proteica concentrado a fim de se obter melhores resultados no desempenho. Ainda, Megasphaera elsdenii é capaz de utilizar diferentes substratos além do lactato como glicose, frutose e maltose, garantindo sua população no rúmen.

L'industrie lithique du Néolithique final provençal demeure relativement insaisissable si elle est n'est abordée que d'un point de vue technique et selon une typologie établie à partir d'observations effectuées à l'oeil nu. Ses caractéristiques, c'est-à-dire une dichotomie représentée par des productions laminaires standardisées issues d'ateliers spécialisés, et une production domestique techniquement peu investie dont la finalité n'est pas évidente à déterminer, nécessitent que l'on augmente l'échelle des observations des objets de silex. Ces dernières, alors d'ordre pétrographiques et tracéologiques, permettent de reconstituer les chaînes opératoires avec davantage de fiabilité, et d'identifier les outils qu'elles visent à produire. lI est alors possible de proposer une typologie plus adaptée à partir de l'ensemble de l'outillage et de percevoir les normes existantes. La comparaison des données issues de trois sites complémentaires permet d'illustrer les avantages de la méthode d'étude développée dans ce travail de doctorat et de proposer une ébauche de caractérisation des industries lithiques de cette période. / The lithic industry from the Late Neolithic of Provence stays quite imperceptible if studied by a classic technique and typology approach. Its caracteristics, a dichotomy represented by standardized long blade productions coming from specialized workshops on one hand, and a technically simplified domestic production of wich standards aren't easy to find on the other, need a higher resolution improvement in the observations that are made. Those ones, then of a petrographical and traceological nature, allow a better understanding of the operating chains as well as to identify the tools they are destinated to produce. It then is possible to propose a more adapted typology and to show the existing standards. The comparison of the lithic industries of three complementary occupations illustrates the advantages of the methodology developped in this work and suggests, at last, a sketch of the caracteristics of the lithic industry from this period.

This thesis aims to present, discuss, and analyze issues relating to queer representations in film and television. The thesis focuses on existing tropes, such as queer coding, queerbaiting, and the “Bury Your Gays” trope that are prevalent in contemporary media, and applies the analysis of these tropes to a case study based on the television series Black Sails (2014-2017). The analysis explores the main research question: in what way does Black Sails subvert or reproduce existing queer tropes in film and television? This then leads to the discussion of three aspects: the way queer sexual identities are represented overall, what representational strategies are employed by the series in a number of episodes, and whether or not these representations reproduce or subvert media tropes.

Polished-edge discoidal knives are part of the lithic material culture from the British Isles with an approximate Late Neolithic date. These artefacts are manufactured in three basic shapes: circular to D-shaped, triangular, and broad leaf to lozenge (Clark 1929). The aim of this project was to explore the function of polished-edge discoidal knives. To achieve this aim, the following objectives were completed: Objective 1: Develop a broad understanding of the literature surrounding polished-edge discoidal knives; Objective 2: Develop a database containing all the available information regarding the known knives for study in this project and as a tool to help further research and select archaeological samples for study based on type, condition, find location, and current location; Objective 3: Understand how these tools were used; and Objective 4: Review all data and produce a narrative about polished-edge discoidal knives’ function in Late British Neolithic Society. This project has revealed that these knives were possibility used for activities involving birch bark, clay, or other wood types. This research has also produced a database of knives, a modern distribution map, a revised typology, an archaeological date and possible contexts, and an object itinerary.

The aim of this essay is to show how both Treasure Island and Black Sails depict master narratives that are mainly influenced by imperialist ideology. The essay analyzes elements present in both the novel and the television series that reflect imperialist practices such as “othering,” propaganda, and exploitation. The aim of this essay is also to underline the plurality of voices created by various narratives of marginalized people present in the two sources. By analyzing the perspective and social organization of minority groups such as children, gay men, and people with disabilities, this essay demonstrates how the narratives of marginalized people can be both subversive and complementary to the master narrative.

This thesis discusses aspects of how the Late Neolithic society in southern Sweden changed through the use of metal. Particular focus is on how the different categories of the material culture were utilized in this process – the Late Neolithic flint daggers and objects of stone imitating objects of metal. The presence of metal in the Late Neolithic society is discussed and explicated by the correlation of metal objects to objects imitating metal. Imitations are not perceived as passive copies, but as a continuing dialogue between artefacts. These imitations are viewed as filling a function wherein they help to prepare society to express social and political processes in a different material, as a way to meet and relate to the new world-view that the metal objects implied through their existence. The difference between resharpened and non-resharpened flint daggers is explored through a variety of quantitative and qualitative analyses. There appears to have been two differing rules of deposition of the two types of flint daggers in the Late Neolithic society. Resharpened and non-resharpened flint daggers thus seem to relate to different societal spheres of significance in society. It is suggested that the flint daggers were used in varying forms of ritual body modification practices, as tools for alteration of bodily appearance. These rituals can be termed passage rituals – rituals connected to the individual’s journey through her life-cycle. The resharpening of the dagger blade is then to be understood as a ceremonial resharpening, a ritual remaking of the dagger. During the Late Neolithic, gallery graves, mortuary houses and votive offerings were used to express a connection to an older, ancestral ideology, based on communal rituals. At the same time a new ideology was expressed through the use of individual earth graves and ritual body modification practices. The human body, previously attributed an ancestral role, was now used as a medium of classification, signification and individual expression. The ritual practice works both as a societal regulator and as a way for individuals to express themselves in relation to others. The ritual body modification practices, manifested in different rituals of passage, may have been a way for individuals to relate to the changes in society during the course of the Late Neolithic.

Le passage de la pierre aux métaux a été toujours vu comme un des changements techniques plus importants de l’histoire de l’humanité et, spécialement pour le Proche Orient et le Levant Sud, le développement de la métallurgie a été interprété comme un progrès technique strictement lié à l’essor de la civilisation. Dans cette optique, la métallurgie a toujours capturé l’attention des chercheurs, tandis que l’intérêt pour les industries lithiques a été très marginal, voire inexistant. Cependant, même si les premiers objets en métal font leur apparition pendant le Chalcolithique (Ve millénaire av. J.-C.), les outils en pierre continuent être produits et utilisés pendant toute l’âge du Bronze et le début de l’Âge du Fer (Ier millénaire av. J.-C.). La coexistence de ces deux techniques pour plus de trois millénaires représente un phénomène complexe et articulé qui nous abordons en suivant deux registres d’analyse complémentaires capables de mettre en évidence les divers facteurs qui jouent un rôle dans l’histoire des techniques, leurs trajectoires et leurs rythmes de changement. D’un côté, les logiques évolutives propres des objets, et de l’autres les contingences socio-historiques qui expliquent le succès ou l’échec d’une technique. En adoptant une approche technologique, la comparaison des productions lithiques de l’âge de métaux avec les outils en métal contemporaines a permis d’observer quelles sont les dynamiques, les mécanismes et les modalités qui expliquent la disparition du lithique et sa relation avec le développement de la métallurgie. Cependant, il ne s’agit pas s’une simple substitution d’un matériel avec un autre, mais d’une transformation profonde qui, selon des logiques qui changent pendant le temps, intervient à la fois dans la manière de concevoir les outils et dans leur place au sein des sociétés qui les produisent et les utilisent. / The shift from stone to metal has always seen as one of the main technological transition in the history of the mankind, especially in the Near East and in the Levant where technological progress has been seen as an indicator of the rise of civilization. In this scenario, the development of metallurgy was more attractive than lithic technology, which for a long time was neglected. However, although the first metal objects appear during the Chalcolithic (5th BCE.), flint tools continued to be produced and used through the Bronze Age and the beginning of the Iron Age (1st BCE). The coexistence of these two large scale technologies for more than three millennia represents a complex phenomenon, which we analyse from two different perspectives recognizing the various factors in the history of technology, and the trajectories and the rhythms of technological change: 1. the specific evolutionary path of the objects, technologies and techniques and 2. the socio-historical contingencies which explain the success or failure of a technique. Using a technological approach, the comparison between the chipped-stone production of the metal ages and their contemporaneous metal tools allows us to observe which dynamics, mechanisms and modalities explain the disappearance of flint industries in terms of their relationship with the development of the metallurgy. However, it is not a simple substitution from one material to another, but a deeper transformation which, according to strategies that change over time, operates both in the conception of the objects and their place into the societies producing and using them.

The goal of the thesis is to find the way how to apply use-wear analysis as well as functional analysis to archaeological assemblages of selected artefacts from Central European archaeological contexts, namely lithics (chipped stone artefacts) and obtain the greatest potential from the analysis. Thesis consists of: current state in the field of functional studies research worldwide, method of use-wear application in connection with material science knowledge, especially tribology. Use-wear analysis is applied to the selected lithic artefacts from Paleolithic to Eneolithic Periods. The results of this work are based on the following microscopic approaches: low power approach (LPA), high power approach (HPA), scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). There are described and stated differences in potential of above mentioned approaches in connection with specific archaeological artefacts (assemblages of artefacts). The question answered in the conclusion is how to apply the above mentioned methodological approaches in application to various archaeological materials (period, number, context etc.) to obtain the greatest informational potential from the material analysed. Work is concluded with specific terminology from the field of tribology and use-wear analysis...