Orientador: José Luiz Moraes Vasconcelos / Banca: Pietro Sampaio Baruselli / Banca: Ciro Moraes Barros / Resumo: O objetivo desses experimentos foi avaliar os efeitos da concentração de progesterona pré e pós-ovulação em fêmeas Nelore submetidas ao protocolo: D0-benzoato de estradiol (2,0mg, Estrogin®) + CIDR®; D9-retirada do dispositivo + cipionato de estradiol (0,5mg, ECP®) + dinoprost trometamina (PGF2α, 12,5mg, Lutalyse®); D11- IATF. No Exp.1, 1.153 novilhas Nelore cíclicas foram divididas aleatoriamente para receber CIDR® sem utilização prévia ou utilizados previamente por 18 dias e 0, 200 ou 300UI de eCG (Folligon®) no D9. No Exp.2, 702 vacas Nelore solteiras foram divididas para receber aplicação de PGF2α no D7 ou D9 e 0 ou 300 UI de eCG no D9. Nestes experimentos o diâmetro do maior folículo (ØFD) foi avaliado no D11. Amostras de sangue para dosagem de P4 foram colhidas no D9 e D18 (7d pós-IATF). No Exp.3, 1.332 vacas paridas foram avaliadas no D7 quanto à presença de CL, sendo divididas para receber PGF2α no D7 ou D9. Amostras de sangue foram colhidas no D9. O diagnóstico de gestação foi realizado no D41. Variáveis contínuas foram avaliadas pelo PROC GLM e binomiais pelo PROC LOGISTIC. Considerou-se efeito significativo quando P<0,05 e tendência quando P<0,1. No Exp.1, as novilhas tratadas com CIDR® sem utilização prévia apresentaram maior [P4D9] (3,06±0,09 vs. 2,53±0,09 ng/ml). A [P4D9] afetou negativamente o ØFD. Novilhas que não receberam eCG apresentaram menor ØFD (0UI: 11,5±0,1a; 200UI: 11,9±0,1b; 300UI: 12,0±0,1bmm). O ØFD afetou positivamente a [P4D18]. Houve efeito de dose de eCG na [P4D18] (0UI: 2,77±0,11a; 200UI: 3,18±0,11b; 300UI: 4,87±0,11cng/ml) e na taxa de sincronização [TS; 0UI: 83,8%(337/402)a; 200UI:88,5%(339/383)ab; 300UI: 94,3%(347/368)b]. A [P4D9] tendeu a afetar negativamente e o ØFD influenciou positivamente a TS. Houve interação entre eCG e [P4D9] na taxa de... / Abstract: The aim of this trial was to evaluate the effect of pre- and post-ovulatory progesterone concentration in Nellore cattle treated with the protocol: D0-estradiol benzoate (2.0mg, Estrogin®) + CIDR®; D9-CIDR® withdrawal + of estradiol cypionate (0.5mg, ECP®) + dinoprost trometamine (12.5mg, Lutalyse®); D11-TAI. In Exp.1, 1,153 cycling Nellore heifers were randomly assigned to receive on D0 either a non-previously used or a 18d-previously CIDR® and 0, 200UI or 300UI of eCG (Folligon®) on D9. In Exp.2, 702 non-lactating Nellore cows were assigned to receive PGF2α treatment either on D7 or D9 and 0 or 300 IU of eCG on D9. On these experiments, the diameter of the largest follicle (ØFD) was measured on D11. Blood samples were collected on D9 and D18 (seven days after TAI) to evaluate serum progesterone concentrations. In Exp.3, 1,332 suckled Nellore cows were evaluated on D7 for luteal tissue presence. Cows were assigned to receive PGF2α either on D7 or D9. Blood samples were collected on D9. Pregnancy diagnosis was performed on D41. Continuous variables were evaluated by PROC GLM and binary by PROC LOGISTIC. Significant differences were considered when P<0.05 and tendencies when P<0.1. In Exp.1, heifers treated with non-previously used CIDR® had greater [P4D9] (3.06±0.09 vs. 2.53±0.09 ng/ml). The [P4D9] negatively affected the ØFD. There was effect of eCG dosage on ØFD (0IU: 11.5±0.1a; 200IU: 11.9±0.1b; 300IU: 12.0±0.1bmm). The ØFD positively affected the [P4D18]. The eCG dosage influenced the [P4D18] (0UI: 2.77±0.11a; 200UI: 3.18±0.11b; 300UI: 4.87±0.11cng/ml). Treatment with eCG affected synchronization rate [SR; 0IU: 83.8% (337/402)a; 200IU: 88.5% (339/383)ab; 300IU: 94.3% (347/368)b]. The [P4D9] tended to negatively affect, and the ØFD positively affected the SR. There was interaction between eCG and [P4D9] on conception... / Mestre

Longtemps ignoré, le principe de concentration a reçu ses lettres de noblesse des mains du juge, dans le retentissant arrêt « Cesareo » du 7 juillet 2006. Une décennie plus tard, il est consacré par le pouvoir réglementaire et devient la clé de voûte du procès civil. Les exigences de réunion de la matière litigieuse encadrent désormais la liberté procédurale des parties dans la détermination de l’objet du litige. Principe directeur ou simple norme oublieuse des garanties du droit au procès équitable, la concentration inspire autant l’engouement que la défiance. Une étude apaisée de la relation entre le principe de concentration et le procès civil nécessite de redécouvrir ce principe. Ses origines et l’étendue de son champ d’application n’ont, à ce jour, jamais été étudiées. La dissimulation de la concentration derrière l’autorité de la chose jugée voile nombre de ses aspects. Identifier l’autonomie de la norme de concentration et sa valeur principielle est le but de la première partie de l’étude. Faire valoir sa légitimité par la mise en exergue de ses utilités est le dessein de la seconde partie. S’il est tentant de réduire le principe de concentration à la seule célérité des procédures, ses utilités sont en réalité bien plus riches. Une fois resitué parmi les autres principes du procès civil, il apparaît comme un modèle d’équilibre aux confins de l’efficience et de l’équité. Finalement, la compréhension de la relation entre le principe de concentration et le procès civil supposait de mettre en lumière l’existence et l’essence d’un principe directeur « émergent » dans un système normatif en quête de repères. / The longtime ignored principle of concentration had its important status restored by the judge in the resounding Cesareo case on the 7th of July 2006. A decade later, this principle is enshrined by the regulatory power as the back bone of the civil action. The procedural freedom of the parties in determining the object of litigation is henceforth conditioned by the clustering subject-matter in dispute. As a guideline or a simple rule defying the due process rights, the concentration principal raises the interest as much as the diffidence.The mediating analysis of the relationship between the civil trial and the principle of concentration implies revisiting the later. The sources and the extension of the scope have not yet been studied, as the principle was commonly dealt with in the res judicata perspective, thus concealing its ontological aspects. It was therefore essential, in the first part of the analysis, to identify it as an autonomous norm, as well as to determine the value as a principle. In the second part, its legitimacy was revealed by underlining the manifold usefulness of the principal that can no longer be reduced to a mere expediting proceedings tool. Among the principles of the civil process, the concentration is an equilibrium model between efficiency and equity. Understanding the relationship between the concentration principle and the civil trial ultimately revealed the existence and the essence of a guiding principle that “emerges” in a normative system in search of reference points.

A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Science in Engineering (Metallurgy and Materials Engineering), May 2016 / The solvent extraction of iron and titanium from solution generated by the two-step sulphuric acid leaching of coal fly ash by Primene JMT was investigated. The influence of hydrogen ion concentration, Primene JMT concentration, aqueous to organic volume phase ratio and temperature on the extraction of iron and titanium was determined by the use of Design of Experiments. Hydrogen ion concentration and the interaction between the aqueous to organic volume phase ratio with Primene JMT concentration had a significant effect on the extraction of iron while temperature did not. Hydrogen ion concentration and temperature did not have a significant effect on the extraction of titanium, while the interaction between Primene JMT concentration and aqueous to organic volume phase ratio had a significant effect. Extraction improvement tests showed that at a hydrogen ion concentration of 0.28M, 88% iron and 99% extraction of titanium from coal-fly ash leach solution could be achieved. Construction of a McCabe-Thiele diagram showed that a four-stage solvent extraction system with Primene JMT could reduce the iron and titanium concentration in the coal fly ash leach solutions to below 0.05g/L / GS2016

A presente pesquisa analisa o processo de acumulação, concentração e centralização de capital em três importantes setores da agroindústria, considerando a organização do espaço e sua atual inserção na economia brasileira. Para tanto, foram escolhidas algumas empresas representativas dos setores de carne bovina, óleo de soja e sucroalcooleiro, observando o movimento de fusões e aquisições no período 1992-2010. Nesse período, verificou-se um cenário econômico diferente das décadas anteriores no Brasil. Considerando o dinamismo e a multiplicidade das transações relacionadas a fusões e aquisições, procurou-se examinar as causas e desdobramentos dos processos de concentração e centralização de capital, igualmente a crescente oligopolização e desnacionalização relativas aos setores em estudo. Por fim, a identificação das ações das empresas envolvidas nos negócios, permitiu estabelecer analogias entre as estratégias de expansão geográfica e de diversificação nos setores, considerando a participação de capital estrangeiro e a internacionalização de empresas brasileiras. / The present research analyzes the process of accumulation, concentration and centralization of capital in three important sectors of the agriculture, considering the organization of the space and its current insertion in the Brazilian economy. For in such a way, some representative companies of the sectors of bovine meat, oil of soy and sugar cane had been chosen, observing the movement of merger and acquisitions in period 1992-2010. In this period, a different economic scene of the previous decades in Brazil was verified. Considering the dynamism and the multiplicity of the related transactions the merger and acquisitions, were looked to examine the causes and unfoldings of the concentration processes and centralization of capital, equally the increasing relative denationalization to the sectors in study. Finally, the identification of the actions of the involved companies in the businesses, allowed to establish analogies between the strategies of geographic expansion and diversification in the sectors, being considered the participation of foreign capital and the internationalization of Brazilian companies.

O cádmio (Cd) é um metal pesado e dos mais abundantes elementos encontrados no ambiente. Existem evidências de sua relação coma osteopenia, osteoporose, e osteomalacia e fragilidade do tecido ósseo. Este estudo visa avaliar o efeito do pH da água de beber na gênese da alteração óssea provocada pela intoxicação por cádmio. Neste estudo, foram utilizados90 ratosWistar (Ratus Norvegicus albinus), adultos, machos,divididos em 6 grupos, aos quais foram administrados: A -solução de cloreto de Cd(400mg/L) com pH neutro (pH 7,0); B -solução de cloreto de Cd(400mg/L) com pH ácido (pH 5,0); C -solução de cloreto de Cd(400mg/L) com pH básico (pH 8,0). D -pH ácido (pH 5,0); E -pH básico (pH 8,0); F -pH neutro (pH 7,0). Nofêmur esquerdo de cada rato avaliou-se a densidade óssea, por meio do densitômetro de dupla emissão (DEXA), ensaiosbiomecânicos e escala de HU na tomografia computadorizada espiral.Os resultados demostram que a densidade óssea reduziunos grupos que receberam cádmio e no grupo sem administração de cádmio para o pH 5 ocorreu uma redução da densidade mineral óssea (DMO) e do conteúdo mineral ósseo (CMO). A rigidez biomecânica mostrou-se aumentada para o grupocom pH 5 sem cádmio. Como conclusão geral o cádmio reduziu a densidade óssea. / The cadmium (Cd) is a heavy metal, one of the most abundant elements found in the environment. There are evidences of its relationship in osteopenia, osteoporosis e osteomalacia and fragility of the bone tissue. This study aims to evaluatethe effect of the pH of the drinking water in the bonealteration origin caused by cadmium intoxication. This study envolved90 wistar rats (Ratus Norvegicus albinus), adults, males,divided in 6groups, were witch one receved: A -cadmium choride solution (400mg/L)withneutral ph (pH 7,0); B -cadmium choride solution(400mg/L) with acid ph (pH 5,0); C -cadmium choride solution(400mg/L)with basic ph(pH 8,0); D -with acid ph (pH 5,0); E -basic ph (pH 8,0); F -neutral pH (pH 7,0).Left femurs from each rat were evaluatedbybone density,DEXA,biomechanictest,HU scale from computerized tomography. The results shows that bone density became lower in the groups that received cadmium. In that wich received no cadmium with pH 5 ocurred an lower level of bone mineral density (BMO) andbone mineral content (BMC).The bone rigidity proved increased in the pH 5 with no cadmium. As a general conclusion, cadmium reduced the bone density.

Thesis advisor: Philip E. Strahan / In the first essay of this dissertation, I study the information synergies between deposit-taking and lending activities of large banks. I use the influx of Chinese international students into US universities to identify a local deposit shock. I find that banks that are more exposed to this shock increase their local credit supply in small business loans, but not mortgages. The results support the notion that deposit can be informative: it conveys signals about local economic activities. Such information affects banks expectation about future local demand and thus banks’ lending decisions. The second essay investigates the relationship between banks geographic concentration and liquidity risk management. I find that geographic concentrations measured on different sides of banks’ balance sheet have opposite effects on banks’ liquidity risk management behaviors during the 2007-2009 liquidity crisis. The overall results are consistent with the view in the literature that geographic concentrated banks invest more in soft information production. / Thesis (PhD) — Boston College, 2018. / Submitted to: Boston College. Carroll School of Management. / Discipline: Finance.

O aprimoramento das práticas agronômicas e a utilização de alta tecnologia nas lavouras contribuiu para os aumentos significativos na produtividade das culturas e, pode ter alterado a dinâmica de absorção e partição dos nutrientes pelas plantas. As recomendações oficiais de adubação para a cultura de milho no Brasil estão baseadas no teor crítico do nutriente no solo e são provenientes de literaturas mais antigas. Por serem dinâmicos, os fatores que interagem em um sistema de produção agrícola podem ser melhor estudados através de modelos matemáticos. A técnica de modelagem em agricultura pode expandir a compreensão das interações que ocorrem no sistema solo-planta-atmosfera. Sendo assim, o objetivo deste estudo é propor um modelo para o cálculo de recomendação de adubação da cultura de milho, a partir da modelagem da marcha de absorção de nutrientes, da evapotranspiração potencial da cultura e, da partição dos nutrientes nas plantas, levando em consideração a taxa de absorção de cada nutriente para cada genótipo em um determinado sistema de produção. O modelo proposto considera que a recomendação de adubação deve ser realizada com base na variação temporal da taxa de absorção de nutrientes, a qual define melhor a demanda da cultura, em comparação com o teor crítico dos nutrientes no solo. Para a validação do modelo, sugere-se um ensaio de campo comparando as metodologias. / The improvement of agronomic practices and the use of high technology in field crops contributed for their significant increases in productivity, and could also have altered the dynamics of nutrient uptake and partition by the plant. Official recommendations for fertilizer applications to the maize crop in Brazil are based on the critical soil nutrient content and are relatively outdated. Since the factors that interact in an agricultural production system are dynamic, mathematical modeling turns out to be an appropriate tool for these studies. Agricultural modeling can expand our knowledge about the interactions prevailing in the soilplant- atmosphere system. In this way, the objective of this study is to propose a model for fertilizer recommendation of the maize crop, based on modelling nutrient uptake, potential evapotranspiration of the crop, and the partition of nutrients in the plant, taking into account the nutrient uptake rate of each genotype in a given production system. The proposed model considers that the fertilizer recommendation should be made based on the temporal variation of the uptake rate, which should better define crop needs in relation to the classic recommendation based on the critical soil nutrient content. To validate the model an experiment is suggested to compare methodologies.

O principal índice usado para medir concentrações horizontais é o Hirschmann-Herfindahl Index (HHI). Este índice tornou-se popular nos últimos anos devido ao seu apelo teórico e a sua simplicidade computacional, entretanto, apesar desta conveniência, o HHI é inaplicável na análise de mercados em que os compradores possuem poder de mercado. Isso ocorre porque o modelo de Cournot supõe que apenas os vendedores podem influenciar os preços. O erro causado pela aplicação inadequada do HHI é ainda maior quando o mercado considerado apresenta firmas verticalmente integradas. Diante disso, o objetivo deste trabalho é aplicar o MHI, medida de concentração sugerida por Hendricks e Mcafee (2007), na análise da aquisição da Agip pela BR, com vistas a identificar os impactos da operação sobre a concorrência, comparando os resultados com a análise da SEAE e a decisão do CADE. O MHI é capaz de captar a mudança de incentivos de todas as firmas do mercado estudado após o Ato de Concentração, e permite que o efeito líquido da integração seja medido através das variações das margens preço/custo das firmas da indústria. / The main index that is used to measure horizontal concentrations is the Hirschmann-Herfindahl Index (HHI). This index became popular in the last years due to its theoretical appeal and its computational simplicity. However, despite this convenience, the HHI is inapplicable in the analysis of markets where the purchasers have market power. This happens because the Cournot model assumes that only the sellers can influence the prices. The error caused by inadequate application of HHI is even bigger when the considerate market shows vertically integrated firms. In front of this, the objective of this work is apply the MHI, the concentration measure suggested by Hendricks e McAfee (2007), in the analysis of Agip acquisition by BR, with the purpose of identify the operation impacts in the competition, comparing the results with the SEAE analysis and the CADE decision. MHI is capable of catch the incentive change in all firms of the analyzed market after the Concentration Act, and allows that the operations net effect is measured through the price-cost margin variation.

This paper aims to study the effect of visual aid in listening comprehension tests for Swedish secondary school pupil. The study also looks at the effects visual aid has for pupils who have difficulty concentrating and lastly to study the effect that previous knowledge has on the pupils’ performance. The study was carried out on 45 economy pupils who study engelska 6, the second English course in secondary school. They performed two tests; one listening comprehension test without visual aid and another listening comprehension test with visual aid. The results indicated that a slight majority of pupils performed better with the test with visual aid but that the difference was scattered, with some pupils having lower results on the test with visual aid. The participants with difficulties concentrating were too few in number to draw any definitive conclusions, but as a group they performed better when they had the visual aid.

A fase monopolista de desenvolvimento do capital, historicamente, foi permeada por uma série de alterações na organização da produção, com extensões em diversos aspectos da vida em sociedade. As mudanças na inter-relação entre a estrutura produtiva e o setor financeiro caracterizaram esse processo, que envolveu também uma intensificação do grau de concentração e centralização do capital. Esta proposta objetiva avaliar, sob prisma diferenciado, o circuito secundário de movimentação de capital: o setor imobiliário e nele os shopping centers, considerados uma demonstração típica das forças capitalistas atuais. Pretendo identificar como a circulação do capital se movimenta internamente, no shopping , através de seus agentes o empreendedor, a administradora, o lojista e o cliente, e externamente na captação de recursos através das fusões, aquisições e abertura de capital, contribuindo com o crescimento dessa nova modalidade de acumulação e financeirização. / The monopolist phase of the capital development was, historically, permeated by a number of changes in the organization of the production, with extensions in various aspects in the life in society. The changes in the interrelation between the production structure and the financial sector characterized this process, which envolved an intensification of the concentration degree and centralization of the capital too. This proposal aims to evaluate, under a differentiated prism, the secondary circuit of movement of capital: the real estate - the shopping malls, considered a typical demonstration of the current capitalist forces. I intend to identify how \"the movement of capital\" moves internally in the malls, through its \"agents\" - the entrepreneur, the administrator, the shopkeeper and the client, and externally, in the fund raising through mergers, acquisitions and IPO, contributing in this new mode of accumulation and financialization.