Usamos o formalismo de A. Toledo Pisa e E. Passos, que usa o método de coordenadas geradores e o Teorema Espectral de Anélise Funcional, para obter uma hamiltoniana coletiva para as vibrações monopolares isoescalares nos núcleos duplamente mágicos ANPOT. 4 He, ANPOT. 16 O e ANPOT 40 C. As funções de onda do oscilador hermônico são tomadas como funções de onda geradoras, e a interação de muitos corpos é aquela de Skyrme. Com esta hamiltoniana coletiva calculamos o espectro de energias do modo monopolar isoescalar, parâmetros de inércia e módulos de incompressibilidade para aqueles núcleos e comparamos com os resultados de Flocard e Vautherin, que resolvem numericamente a equação de Griffin-Wheeler. Foram calculados ainda os raios quadráticos médios nucleares. Os efeitos espúrios dos movimentos do centro de massa são eliminados exatamente para o AMPOT. 4 He e recalculamos aquelas propriedades nucleares. / The isoscalar monopole vibrational mode in 4 He,16 O and 40Ca is studied with the aid of collective Hamiltonians obtained from e general formalism proposed by A. Toledo Piza and E. Passos, which makes use of the generator coordinate method and Functional Analisis Spectral Theorem. Cur generator wave functions are that of the harmonic oscillator and use is made of the Skyrme\'s schematic effective interaction. Using the collective Hamiltonian we can calculate the energy spectrum, inertial parameters end incompressibility modulus and compare with numerical results of Flocard and Vautherin. R. m. s. radii are also calculated. Center of mass spurious effects are exactly eliminated and the forementioned nuclear properties are calculated again for 4 He.

The purpose of this exploratory study was to identify the key predictors of prostate cancer; such study may lead to the development of appropriate interventions and prevention. Previous epidemiological studies have found these following factors to be key predictors for being diagnosed with hormone-associated carcinoma such as prostate cancer: age, ethnicity, physical activity, family history, diet, sleep amount, marital status, and having another form of carcinoma. Many studies have included results only for men over the age of 65, however, prostate cancer is claiming the lives of many African American, Hispanic and White American men over the age of 35, and younger men are more likely to battle it if they are genetically predisposed. The sample population (N =21,646) was selected because men aged 35 or over have the highest prevalence of prostate cancer. Of this sample, 619 reported having prostate cancer, and 1,401 reported having some other type of cancer. This study employs a logistic regression model using SAS® and utilizes the National Health Interview Survey data set and a multivariate analysis of the years 2006, 2007, and 2008. To improve the quality of future research the methods need modification, the subpopulation being studied should be larger, and the studies should be longitudinal. This particular study found the aforementioned factors to be critical in predicting prostate cancer. Maximum sun exposure was found to be also related to having prostate cancer. Key predictors for prostate cancer diagnosis are age, ethnicity, having some other cancer and maximum sun exposure, and education. Though previous studies have found physical activity, sleep amount, and occupation to be beneficial in reducing the risk for prostate cancer, it was not confirmed in this particular study.

Streamflow from two drainages of the Davis County Experimental Watershed, Utah, was evaluated with respect to changes in distribution and volume following trenching of one of the drainages in 1964. Fifteen percent of the Halfway Creek drainage was trenched according to established U.S. Forest Service methods. Twelve years of records before trenching and four years of records after trenching were analyzed. Analysis of the annual streamflow, the low streamflow period, and the spring streamflow period indicated no significant change in either volume or distribution of streamflow as a result of trenching. This conclusion was further substantiated by supplemental data of precipitation, soil moisture, snowpack water equivalent, and vegetation.

Causative factors and some consequences of dystocia were examined in 3923 parturitions among Hereford and Angus x Hereford crossbred two-year-old heifers. Fifty percent of the parturitions required some assistance. Minor assistance was required in 34.5% of the parturitions and major assistance involving use of a calf puller, in 15.1%. Caesarean section and foetotomy were rendered in 0.3% and .05% of the cases, respectively. Abnormal presentation at birth, which included leg back, head back, backwards, hiplock and breech, was observed in only 2.9% of the births and therefore is a minor contributor to dystocia. The major causes of dystocia were not specifically identified in this study. Sex of calf had a definite influence upon the degree of calving difficulty with male calves requiring more assistance in both minor and major assistance categories. Crossbred heifers had a higher percentage of unassisted births (62.4% vs 36.7%) than Hereford heifers. Ninety and eight-tenths percent of all calves born were alive at 30 days postpartum. Of the 9.2% that died, 6.2% died at birth or within 24 hours after birth. Losses were particularly heavy in this early period among those to whom major assistance had been given, with 71.5% of all deaths in this group being in this early period. Death loss rate was higher in this group throughout the 30 day postpartum interval with a total death loss of 38.6% as compared to a loss of 3.8% and 3.4% for the minor assisted and the unassisted groups, respectively. Among the kinds of abnormal presentations, death loss was greatest among breech presentations with a 66.7% loss. Backward presentation ranked next followed, in order, by head back, hiplock and leg back. Loss from leg back, 21% was relatively low. Increases in degree of severity of dystocia was accompanied by increases in time required to complete the birth process. Labor duration and sex of calf were correlated with male calves requiring a longer parturition than female calves, 104 minutes vs 88 minutes, respectively.

This thesis aims to provide a classification of low-dimensional Lie algebras. We make emphasis on several structural properties, such as nilpotency, solvability and (semi) simpli- city. The first two properties relate to two fundamental theorems by Lie and Engels which classification results will be presented in a table for ease of access. / <p>I presented my thesis on 1st of October 2021.</p>

No description available.

Ce travail a porté sur la conversion du méthane en hydrogène par les procédés de vaporeformage et reformage à sec, utilisant de nouvelles formulations de catalyseurs afins d'augmenter la sélectivité en produit désiré (H₂), de réduire la production du monoxyde de carbone (CO) et défavoriser la formation de coke. Deux familles de catalyseurs, à base de nickel et de ruthénium supportés par la cérine et/ou l'alumine, ont été évaluées dans ces réactions. Il a été montré que les catalyseurs à base de ruthénium supportés par l'alumine présente une bonne activité catalytique et une très bonne résistance au dépôt de coke dans les réactions de reformage du méthane. La cérine joue un rôle déterminant dans les catalyseurs à base de nickel en favorisant la dispersion de la phase active et évitant la formation des agglomérats. Parallèlement, une inhibition de la formation de coke est observée grâce aux propriétés redox du solide. Les travaux ont porté également sur l'amélioration de la formulation des catalyseurs monométalliques, et un catalyseur bimétallique (Ru-Ni/CeO₂-Al₂O₃) actif, sélectif et stable pour la production d'hydrogène à partir du méthane a été mis au point. L'ajout d'un deuxième métal en faible teneur (0,5%) aide à maintenir le Ni sous sa forme actif empêchant la formation de coke sur la surface du catalyseur. Pour les deux réactions étudiées, les excellentes performances obtenues proviennent essentiellement de l'ajustement des paramètres de réaction et les paramètres de préparation des catalyseurs, ce qui ouvre de réelles perspectives d'application industrielle. / This work has focused on the methane conversion by steam reforming and dry reforming processes, through new catalyst formulations in order to increase the selectivity of expected products (H₂), to reduce carbon monoxide production (CO) and to limit the coke formation. Two categories of catalysts were evaluated in these reactions : nickel-based catalysts and ruthenium-based catalysts supported by ceria and/or alumina. It has been reported that the ruthenium-based catalysts supported by alumina provide important catalytic activity and high resistance to coke deposition in the methane reforming reactions. Ceria played a determining role in the nickel-based catalysts by enhancing the active phase dispersion without agglomerates and coke formation. Works have also continued on the improvement of the monometallic catalyst and an active bimetallic catalyst (Ru-Ni/CeO₂-Al₂O₃), selective and stable in hydrogen production from methane has been developed. The addition of a second metal helps maintaining Ni in its active form, preventing the coke formation on the catalyst surface. For the two considered reactions, the excellent performance was largely due to the adjustment of the reactions and catalyst parameters offering a real potential industrial application.

Made available in DSpace on 2015-05-07T15:08:57Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1407397 bytes, checksum: 4e089c226c23b67de21abdb0e828f8ee (MD5) Previous issue date: 2013-03-26 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The objective of this research is analyze, by the view of the professors, the process of the inclusion of the younger and adults with physical and psychology disability at the EJA( Young and Adults Education), at some municipal public schools of João Pessoa city, Paraiba State Capital, Brazil. At the Historical context of the Brazilian Education, the EJA has always represented a place of battles against the social exclusion. Starting on this point, this study shows a investigation about the other population that also is submitted a certain exclusion, the people who has some kind of disability, that have been also included in the statistics of the exclusion. This study is based in the documents available by the Education e Cultural Secretary of João Pessoa City, in which was possible an analyze of the students chart with disability at the EJA in the 2011 year. As a general guiding, this work has intended to explain these themes starting with the contribution of the Theoretical Cultural Researches, with focus in questions like: What the principal kinds of disabilities that existing in the EJA Schools modality? What the principal difficulties faced by the teachers who works with a student that shows some kind of disability? What the level of evasion and permanency of the young and adults with these disabilities in the EJA s modality? What the profile of the teachers who works at the EJA and which is theirs view about social inclusion? Based in these guiding questions, eight teachers were interviewed and observed in practice, where, at the EJA, they work with disability students. They have been studied in five different institution of public education in the city. The results obtained indicated the existence of a divergence, discordance between the inclusion policies and the EJA policies, this contributes to form practices unlinked of the reality of the students researched. Also what was evidenced that the explosion of the number of students which some disability that were enrolled at this education modality, showing that the Young and Adults education has become a point of insertion to students who were excluded of the regular education. / Este estudo tem como objetivo analisar, a partir do olhar das professoras, o processo de inclusão de jovens e adultos com deficiência na EJA, em algumas escolas públicas municipais da cidade de João Pessoa/PB. No contexto histórico brasileiro, a EJA sempre representou um espaço de lutas contra a exclusão social. Partindo desse pressuposto, buscamos investigar como outra população também submetida à exclusão (as pessoas com deficiência) está sendo incluída nessa modalidade de educação. Este trabalho teve como base os documentos disponibilizadas pela Secretaria de Educação e Cultura da Cidade de João Pessoa, que possibilitaram uma análise do quadro de alunos com deficiência na EJA, no ano de 2011. Como eixo norteador, este estudo procurou contextualizar essas temáticas a partir do aporte teórico dos Estudos Culturais, focando algumas questões, tais como os tipos de deficiência existentes nas escolas que atuam na modalidade EJA; as principais dificuldades enfrentadas pelas professoras ao trabalharem com o aluno que apresenta algum tipo de deficiência; o nível de evasão e permanência dos jovens e adultos com deficiência na modalidade EJA; o perfil das professoras que atuam na EJA e sua visão com relação à inclusão. Baseados nessas questões norteadoras, entrevistamos e realizamos observação da prática de oito professoras que atuam na EJA com alunos com deficiência, distribuídas em cinco instituições da rede de ensino municipal. Os resultados obtidos indicam a existência de um descompasso entre as políticas inclusivas e as políticas da EJA, favorecendo o desenvolvimento de práticas desvinculadas da realidade dos alunos em foco. Ficou evidente, também, o forte crescimento de alunos com deficiência matriculados nessa modalidade de ensino, indicando que a Educação de Jovens e Adultos se tornou um espaço de inserção para alunos que foram excluídos do ensino regular.

Tout dommage que suscite la vie en société ne donne pas lieu à réparation . La formule illustre plus désormais un souhait qu’une réalité alors que l’histoire des conditions posées pour restreindre le champ de la réparation est depuis longtemps celle d’un lent et profond déclin. En principe, un dommage pour être indemnisé doit être personnel, certain et direct. La jurisprudence y ajoute une exigence de légitimité. L’examen du droit positif permet cependant de constater un contrôle de moins en moins poussé de ces différentes conditions. La reconnaissance récente du préjudice écologique pur confirme ce mouvement de recul alors que l’indemnisation de ce dommage collectif au sens strict repose sur l’abandon de l’exigence d’un préjudice personnel. Le phénomène est aujourd’hui acté. Il conduit à faire de presque n’importe quelle atteinte la source d’une indemnisation. Il invite surtout à réfléchir à une réhabilitation de certains caractères généraux du préjudice et même à la redécouverte d’autres caractères plus spéciaux comme la prévisibilité ou l’anormalité pour mieux circonscrire le droit de la réparation. Face à ce phénomène de relâchement, deux attitudes sont en effet possibles : soit y céder et abandonner tout espoir de contrôler par des moyens effectifs le champ de l’indemnisation, soit y résister et tenter de redonner au droit de la réparation une dimension à la fois cohérente et restreinte. C’est cette démarche que nous avons tenté d’entreprendre pour permettre au préjudice de jouer enfin un rôle structurant dans le droit contemporain de la responsabilité. / Not all prejudice emanating from society gives rights to redress. This expression illustrates more of a wish than a reality as the history of conditions to restrict the range of redress is one of long duration and of slow and profound decline. In principle, for prejudice to be compensated it must exist, be personnel, and direct. Jurisprudence adds the demands of legitimacy. An examination of current law however, shows that these conditions have less and less of an impact. For example, recent recognition of ecological prejudice confirms this while the compensation of collective damage in the strict sense rests on the relinquishment of the requirement of personal damage. The phenomenon is today acted upon, and results in the making of almost any infringement a source of compensation. As well, it encourages a reflection on the rehabilitation of certain general characteristics of the damage and even about the rediscovery of other more special characteristics. A reaction to the prejudice or an abnormality, to confine better the right are examples. To confront this, two attitudes are possible: either abandon any hope to control the field of the compensation effectively or to resist the phenomenon and restore in the right of redress incorporating a coherent and restricted dimension. It is this latter approach that this dissertation argues to enable prejudice to finally play a structuring role in contemporary law of responsibility.

This thesis explores the major works of Neil LaBute's career as a playwright and screenwriter, including the criticism he has received on theatrical and literary levels. The themes most prevalent in the thesis are the use of power and manipulation in the relationships between LaBute's characters and the ongoing maturation of his characters that coincides with the maturation of his work. The second section of the thesis follows the production, directing, and acting in LaBute's play Some Girl(s).