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1
Martinez, de Baños Maria Lourdes. "Mechanisms of formation and dissociation of cyclopentane hydrates." Thesis, Pau, 2015. http://www.theses.fr/2015PAUU3037/document.
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Les mécanismes de formation et dissociation d’hydrates de cyclopentane (CP), qui forment á pression ambiante et á des températures entre 0ºC et 7ºC, ont été observés dans/sur/proche des gouttes d’eau immergées dans du CP á des échelles qui vont du micron jusqu’au millimètre. Plusieurs techniques d’observation ont été utilisées, telles que la macrophotographie et la microscopie optique en champ clair, par contraste interférentiel différentiel (CID), par fluorescence et par réflectance confocale. Des substrats hydrophiles et hydrophobes ont été utilisés. Dans une première série d’expériences, un procédé millifluidique simple a été mis au point. Il permet de générer, stocker et surveiller simultanément une centaine de gouttelettes de même volume (de l’ordre de μl), régulièrement espacées. Elles sont séparées par la phase ‘invité’ (CP) dans un tuyau en polymère fluoré (PFA) transparent. Chacune d’elles se comporte comme un réacteur indépendant. Une vision sur l’effet mémoire est obtenue en menant des mesures statistiques sur la nucléation des hydrates quand les gouttes d’eau sont refroidies au-dessous de 7°C. Cette méthode permet aussi de visualiser des événements dans des gouttes individuelles, tels que la naissance et la croissance de l’hydrate (surtout lorsqu’un additive tel qu’un inhibiteur est rajouté dans l’eau), ainsi que la formation d’une émulsion de CP dans l’eau pendant la dissociation de l’hydrate. Dans une deuxième série d’expériences, une seule goutte d’eau est posée ou pendue d’un substrat en verre et immergée dans du CP. Elle est observée par microscopie sous des séquences différentes de refroidissement – échauffement. Il a été observé que la cristallisation d’hydrates dépend fortement du sous-refroidissement. Deux nouveaux phénomènes ont été observés:(i) la propagation d’un « halo » d’hydrate le long de l’interface verre/CP depuis la ligne de contact de la goutte d’eau.(ii) cristallisation de l’hydrate dans une émulsion 2D de CP dans l’eau.Les deux types d’outils développés dans cette thèse ouvrent des nouvelles perspectives pour élucider les mécanismes de formation et dissociation d’hydrates en présence d’additives (promoteurs et inhibiteurs) et en présence d’un substrat minéral. Les applications comprennent les hydrates dans des environnements sédimentaires, séparation de gaz, etc<br>The mechanisms of formation and dissociation of cyclopentane (CP) hydrates, which form at ambient pressure and temperatures between 0°C and 7°C, have been observed in/on/near water drops immersed in CP at scales ranging from a few nanometers to the millimeter by a variety of techniques including macrophotography and optical microscopy under various modes: bright field, differential interference contrast (DIC), fluorescence and confocal reflectance. The substrates used are either hydrophobic or hydrophilic. In a first series of experiments, a simple millifluidic method is implemented. It allows to generate, store and monitor at the same time almost a hundred of regularly-spaced water droplets of equal volume (in the µl range) separated by the guest (CP) phase in a transparent fluorinated polymeric (PFA) (hydrophobic) tubing, each droplet behaving as an independent reactor for hydrate crystallization. Insights into the ‘memory effect’ are gained by measuring the statistics of hydrate nucleation events in these reactors when chilling below 7°C the water drops. The method also allows the visualization of single-drop events such as hydrate birth and growth, and the formation of a CP-in-water emulsion upon hydrate melting, especially when an additive such as an inhibitor is added to the water. In a second series of experiments, a single water droplet in CP, either sitting or hanging from a glass substrate, is observed by microscopy under various cooling and heating sequences. Hydrate crystallization (nucleation and growth) is observed to strongly depend on subcooling at the water drop/CP interface. Two novel phenomena are visualized in detail:(i) the propagation, from the contact line of the water drop, of a hydrate halo along the glass/CP interface. (ii) hydrate crystallization in a two-dimensional CP-in-water emulsion.The two types of tools developed in this thesis open new perspectives for elucidating the mechanisms of hydrate formation and dissociation in presence of additives (promoters and inhibitors) and in the presence of a mineral substrate. Applications include hydrates in sedimentary environments, flow assurance, gas separation, etc
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Nardi, Laura de Moraes Redlich. "O perfil do profissional auto-expatriado e a percep??o de gestores de recursos humanos sobre este perfil." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2015. http://tede2.pucrs.br/tede2/handle/tede/6173.
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Previous issue date: 2015-03-23<br>The number of professionals who leave their home countries to get job positions in different countries has substantially increased in the last decade. Those professionals can be divided in two different groups: the expatriates, who started international careers and who today are increasingly frequent in multinational companies, and the new global professionals. The first ones are professionals who change countries by virtue of positions offered by the company where they work, but with change of headquarters. The second group are those professionals who self-initiated their expatriation, in other words, people who look by their own for new positions all around the world, assuming alone the course of their careers. This group is occupying an important place in companies because of their differentiated profile, flexibility, ease of adaptation to different cultures, besides their professional experience in different companies and different countries. The objective of this research is to identify this professional profile and the Human Resources Manager?s perception about it. For that, a qualitative study was conducted through semi-structured interviews with fifteen self-initiated expatriates and six managers of large companies human resources departments. As a result, the profile of these individuals was mapped and their expectations about people management practices that motivate them to stay longer in a given company were identified. This research also enabled a reflection on the subject on the part of human resources managers, who even if had not yet worked with this professional profile, and because of that have not develop specific management practices for that profile, could develop their own perceptions about the subject.<br>O n?mero de profissionais que deixam seu pa?s de origem para assumir posi??es de trabalho em pa?ses distintos sofreu aumento consider?vel na ?ltima d?cada. Estes profissionais dividem-se em dois grupos: os expatriados, que deram in?cio ao tema das carreiras internacionais e que hoje s?o cada vez mais frequentes nas empresas multinacionais, e os novos profissionais globais. Os primeiros s?o profissionais que se mudam de pa?s em virtude de cargos oferecidos pela pr?pria companhia na qual atuam, por?m com mudan?a de sede. O segundo grupo s?o aqueles profissionais que se auto-expatriam, ou seja, pessoas que buscam por conta pr?pria oportunidades em diversas empresas ao redor do mundo, assumindo sozinhos o destino das suas carreiras. Este ?ltimo grupo est? ocupando um importante papel nas organiza??es nas quais trabalham em virtude do perfil diferenciado, da flexibilidade, facilidade de adapta??o a diferentes culturas, al?m da experi?ncia profissional em diferentes empresas em diversos pa?ses. O objetivo desta pesquisa ? identificar o perfil do profissional auto-expatriado e a percep??o de gestores de Recursos Humanos sobre este perfil. Para tanto foi realizado um estudo qualitativo atrav?s de entrevistas semiestruturadas com quinze profissionais considerados auto-expatriados e com seis gestores de Recursos Humanos de grandes empresas. Como resultado, foi mapeado o perfil destes indiv?duos, assim como identificadas suas expectativas em rela??o ?s pr?ticas de gest?o de pessoas que os motivam a permanecer por mais tempo em determinada empresa. Esta pesquisa tamb?m possibilitou a reflex?o acerca do tema por parte de gestores da ?rea de Recursos Humanos, que mesmo que ainda n?o tenham trabalhado com este perfil de profissional, conseguiram construir percep??es sobre o assunto.
3
Moreira, Darlan Ara?jo. "Percola??o convencional, percola??o correlacionada e percola??o por invas?o num suporte multifractal." Universidade Federal do Rio Grande do Norte, 2005. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16539.
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Previous issue date: 2005-03-10<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico<br>In this work we have studied the problem of percolation in a multifractal geometric support, in its different versions, and we have analysed the conection between this problem and the standard percolation and also the connection with the critical phenomena formalism. The projection of the multifractal structure into the subjacent regular lattice allows to map the problem of random percolation in the multifractal lattice into the problem of correlated percolation in the regular lattice. Also we have investigated the critical behavior of the invasion percolation model in this type of environment. We have discussed get the finite size effects<br>Nesta disserta??o estudamos o problema da percola??o num suporte geom?trico multifractal, em suas diferentes vers?es, e analisamos a conex?o deste problema com a percola??o convencional e com o formalismo dos fen?menos cr?ticos.
A proje??o da estrutura multifractal numa rede regular subjacente permite mapear o problema da percola??o aleat?ria no multifractal num problema de percola??o correlacionada numa rede regular. Tamb?m investigamos o comportamento cr?tico do modelo da percola??o por invas?o neste tipo de ambiente e discutimos a quest?o do efeito de tamanho finito
4
Gely-Pernot, Aurore. "Implication des protéines vitamine K-dépendantes dans la régulation de l'activité des cellules souches du cerveau et dans la réparation de la lésion rétinienne chez le rongeur adulte." Poitiers, 2009. http://theses.edel.univ-poitiers.fr/theses/2009/Gely-Pernot-Aurore/2009-Gely-Pernot-Aurore-These.pdf.
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Les protéines vitamine K-dépendantes (PVKDs) sont une famille de protéines connues pour leur implication dans la régulation de la coagulation sanguine. Leur activité dépend d’une modification post-traductionnelle, la γ-carboxylation qui est inhibée par la warfarine. Deux PVKDs, les protéines S et Gas6 ont été identifiées comme ligands des récepteurs tyrosine kinase de la famille TAM. L'étude menée chez les souris invalidées pour ces récepteurs suggère une implication des PVKDs dans la neurogenèse. Chez les rongeurs, la neurogenèse assurée par les cellules souches neurales (CSN) persiste à l'âge adulte dans quelques régions cérébrales dont la zone sous-ventriculaire (SVZ). Mon travail de thèse a eu pour objectif majeur de comprendre l'effet des PVKDs sur l'activité des CSN de la SVZ mais aussi l'implication de la protéine Gas6 dans la rétinogenèse. Nos résultats montrent que l'inhibition de la sécrétion des PVKDs par la warfarine stimule la prolifération des CSN. En outre, nous montrons que les récepteurs TAM et leurs ligands sont exprimés par les CSN et dans le LCR, que la protéine S exogène inverse les effets de la warfarine et que l'absence de la protéine Gas6 chez les souris Gas6-/- induit une réduction de la prolifération des CSN. L'ensemble de ces résultats a permis de mettre en évidence l'implication des PVKDs dans la régulation de la prolifération des CSN. La deuxième partie de ce travail montre que les CSN possèdent une activité phagocytaire basale qui est stimulée par la protéine S. La troisième partie de ce travail montre que chez les souris Gas6-/- soumises à une lésion rétinienne, la prolifération cellulaire permettant la réparation de la lésion est moins importante que chez des souris sauvages<br>Vitamin K-dependent protein (VKDPs) is a family of proteins known for their involvement in the regulation of blood coagulation. Their activity depends on post-translational modification, the γ-carboxylation, witch is inhibited by warfarin. Two VKDPs, protein S and Gas6 have been identified as ligands of TAM receptor tyrosine kinase family. The study lead in mice invalidated for these receptors suggests the involvement of VKDPs in neurogenesis. In rodents, neurogenesis provided by neural stem cells (NSC) persists into adulthood in several brain regions including the subventricular zone (SVZ). My thesis had the main objective to understand the effect of VKDPs on NSC activity of the SVZ but also the involvement of Gas6 protein in retinogenesis. Our results show that the inhibition of VKDPs secretion by warfarin stimulates NSC proliferation. In addition, we show that TAM receptors and their ligands are expressed by NSC and in CSF, that exogenous protein S reverses the warfarin effects and that absence of Gas6 protein in Gas6-/ - mice induced a reduction of NSC proliferation. All these results revealed the involvement of VKDPs in the regulation of NSC proliferation. The second part of this work shows that NSC have a basal phagocytosis activity that is stimulated by protein S. The third part of this work shows that Gas6-/- mice subject to a retinal lesion, cell proliferation to repair the damage is less important than in wild mice
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Perrot, Camille Olny Xavier Guyader Jean-Louis Panneton Raymond. "Microstructure et macro-comportement acoustique approche par reconstruction d'une cellule élémentaire représentative /." Villeurbanne : Doc'INSA, 2007. http://docinsa.insa-lyon.fr/these/pont.php?id=perrot.
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Thèse doctorat : Acoustique : Villeurbanne, INSA : 2006. Thèse doctorat : Acoustique : Université de Sherbrooke, Canada : 2006.<br>Thèse soutenue en co-tutelle. Titre provenant de l'écran-titre. Contient de références bibliographiques.
6
Andrade, Kaline Andreza de Fran?a Correia. "Percola??o em uma rede multifractal." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17006.
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Previous issue date: 2009-08-28<br>In this work we present the principal fractals, their caracteristics, properties abd their classification, comparing them to Euclidean Geometry Elements. We show the importance of the Fractal Geometry in the analysis of several elements of our society. We emphasize the importance of an appropriate definition of dimension to these objects, because the definition we presently know doesn t see a satisfactory one. As an instrument to obtain these dimentions we present the Method to count boxes, of Hausdorff- Besicovich and the Scale Method. We also study the Percolation Process in the square lattice, comparing it to percolation in the multifractal subject Qmf, where we observe som differences between these two process. We analize the histogram grafic of the percolating lattices versus the site occupation probability p, and other numerical simulations. And finaly, we show that we can estimate the fractal dimension of the percolation cluster and that the percolatin in a multifractal suport is in the same universality class as standard percolation. We observe that the area of the blocks of Qmf is variable, pc is a function of p which is related to the anisotropy of Qmf<br>Neste trabalho, apresentamos uma colet?nea dos principais fractais, observamos suas propriedades, m?todo de constru??o, e a classifica??o entre fractais auto-similares, autoafins
e fractais aleat?rios, comparando-os a elementos da Geometria Euclidiana. Evidenciamos a import?ncia da Geometria Fractal na an?lise de v?rios elementos da nossa realidade. Enfatizamos a import?ncia de uma defini??o adequada de dimens?o para estes
objetos pois, a tradicional defini??o de dimens?o que conhecemos, n?o reflete satisfatoriamente as propriedades dos fractais. Como instrumentos para a obten??o dessas dimens?es,
s?o apresentados os M?todos de Contagem de Caixas, de Hausdorff-Besicovitch e de Escala. Estudamos o Processo de Percola??o na rede quadrada, comparando-o ? percola??o
no objeto Multifractal Qmf. Desta compara??o, verifica-se algumas diferen?as entre esses dois porcessos: na rede quadrada o n?mero de coordena??o c ? fixo, em Qmf ? vari?vel;
cada c?lula no multifractal Qmf pode afetar de maneira diferente o aglomerado percolante e, o limiar de percola??o pc em Qmf, ? menor do que na rede quadrada. Analisamos o gr?fico do histograma das redes percolantes versus a probabilidade de ocupa??o p e, dependendo do par?metro p e do tamanho da rede L , o histograma pode apresentar estat?stica bimodal. Motramos que se pode estimar a dimens?o fractal do aglomerado percolante. Percebemos que o processo de percola??o num suporte multifractal est? muito pr?ximo ?
percola??o na rede quadrada, al?m disso, a ?rea dos blocos de Qmf varia e pc ? uma fun??o de p, o qual est? intimamente ligado a anisotropia do multifractal em estudo
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Silva, Josenildo Eug?nio da. "HIV/AIDS: um perfil epidemiol?gico do v?rus e uma an?lise das pr?ticas seguras, conhecimento e percep??o de mulheres." Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br/handle/123456789/19448.
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Previous issue date: 2014-09-05<br>O debate em torno do acometimento do v?rus HIV/AIDS passou por grandes transforma??es, no in?cio, as campanhas de preven??o focavam os grupos de risco, depois, comportamentos de risco e, por fim, vulnerabilidade. Ademais, ao longo dos anos, dimens?es da AIDS foram surgindo no meio social s?o estas: interioriza??o, heterossexualiza??o, pauperiza??o e feminiza??o. Com base nesses contextos, a composi??o deste estudo compreende dois artigos: o primeiro tem como objetivo geral analisar o perfil epidemiol?gico e a incid?ncia do v?rus HIV/AIDS nas regi?es brasileiras, no per?odo de 1980 a 2012 e o segundo artigo tem o intuito de averiguar se h? rela??o entre pr?ticas seguras, conhecimento e percep??o das mulheres residentes nas capitais de Manaus e Boa Vista sobre a infec??o sobre v?rus HIV/AIDS. No Artigo 1, utilizaram-se informa??es do Departamento de Inform?tica do Sistema ?nico de Sa?de (DATASUS), como fonte de dados. Desenvolveu-se uma an?lise explorat?ria e espacial das taxas de incid?ncia e propor??o relativa dos casos notificados. No Artigo 2, utilizou-se como fonte de dados a Pesquisa ?Avaliando o processo de difus?o epid?mica e espacial do HIV/AIDS nas Unidades Federadas da Regi?o Norte do Brasil?, ano 2008. Aplicaram-se t?cnicas estat?sticas de An?lise de Agrupamento, ANOVA, Qui-Quadrado, Tukey e Regress?o Log?stica. Verificou-se que, nas Regi?es Brasileiras, a predomin?ncia de casos notificados ocorreu entre os heterossexuais, em homens, em idade entre 20-60 anos e residentes em Regi?es Metropolitanas. Captou-se correla??o espacial significativa da taxa de incid?ncia do v?rus HIV/AIDS. Constatou-se, por meio dos resultados do segundo artigo, que ter bom conhecimento e percep??o sobre o v?rus HIV/AIDS n?o implica, essencialmente, numa pr?tica sexual segura. Estes resultados mostram a necessidade de pol?ticas p?blicas voltadas ? orienta??o da sociedade, com base em estrat?gias educacionais que visem tanto informa??es sobre o v?rus e suas formas de preven??o, como tamb?m a conscientiza??o da popula??o para pr?ticas sexuais seguras em rela??es est?veis ou n?o.<br>In recent decades, the debate surrounding the consequences of the HIV has passed by great
changes. Earlier, prevention campaigns focused risk groups then risk behaviors and ultimately
vulnerability. Furthermore, over the years, the dimensions of HIV that emerged in the social
environment are these: internalization, heterosexualization, impoverishment and feminization.
Based on these contexts, the composition of this study comprises two papers: the former has
the overall objective to analyze the epidemiology and incidence of HIV in Brazilian regions in
the period from 1980 to 2012; the latter, it aims to find out whether there is the relationship
among safe practices, knowledge and perception of women residents in Manaus and Boa
Vista cities on the infection by HIV. In paper 1, it was used information from the Health
Ministry, as a data source. Besides, it was developed an exploratory and spatial analysis of
incidence rates and relative proportion of notified cases. In paper 2, was used as a source of
data, the research "Evaluating the process of spatial and epidemic diffusion of HIV in the
federal units of Brazil-Northern Region" in 2008. Furthermore, Statistical Techniques of
Cluster Analysis, Analysis of Variance, Chi-Square and Logistic Regression were applied. In
this paper, it was found that, in Brazilian Regions, the prevalence of reported cases occurred
among heterosexuals in men 20-40 year age group and residing in metropolitan areas. It was
observed a significant spatial correlation of the incidence rate of reported cases of HIV. It was
also noted by the results that have good knowledge and awareness about HIV does not imply,
essentially, in a safe sexual intercourse. These results have shown the need public policies
geared to the guiding of society, based in educational strategies aiming both information
about the virus and its prevention, as well as public awareness for safe sex practices or in
stable or not intercourses
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Fernandes, Aline Graziele. "Estudo do perfil e das percep??es dos trabalhadores de vigil?ncia em sa?de sobre a forma??o e o desenvolvimento profissional." UFVJM, 2013. http://acervo.ufvjm.edu.br:8080/jspui/handle/1/360.
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Previous issue date: 2013<br>Este estudo tem por objetivo conhecer o perfil e as percep??es dos trabalhadores de vigil?ncia em sa?de acerca da forma??o e do desenvolvimento profissional. Trata-se de um estudo explorat?rio-descritivo com abordagem quali-quantitativa e foi realizado com profissionais do departamento de vigil?ncia em sa?de de um munic?pio do Centro-Leste de Minas Gerais. A coleta de dados ocorreu nos meses de abril e maio de 2013. Consistiu em duas etapas, sendo: 1) Aplica??o de um question?rio estruturado com dados s?cios demogr?ficos, de atua??o e forma??o/desenvolvimento profissional; 2) Entrevistas semiestruturadas, utilizando um roteiro com perguntas norteadoras. Ap?s a realiza??o das entrevistas foi utilizada a t?cnica da an?lise de conte?do proposta por Bardin (2011) para a an?lise dos resultados. Na primeira etapa, a amostra foi composta de 55 trabalhadores e na segunda de 20. Dentre outros, verificaram-se os seguintes resultados: 58,2% dos entrevistados t?m como cargo agente de combate a endemias; 61,8% s?o contratados; 69,1% ganham at? dois sal?rios m?nimos; 41,8% possuem escolaridade de n?vel m?dio; 50% dos profissionais de n?vel superior s?o graduados na ?rea de ci?ncias da sa?de; 41,8% nunca participaram de cursos de capacita??o; 78,2% dos profissionais entrevistados disseram ser capacitados para as a??es que desenvolvem; 58,2% dos profissionais atribu?ram o conceito ?bom? para o seu conhecimento em rela??o ? vigil?ncia em sa?de. Obtiveram-se as seguintes categorias emp?ricas: entendimento de vigil?ncia em sa?de - preven??o de riscos e doen?as para a sa?de da popula??o; import?ncia das a??es educacionais - conhecimento adquirido por meio da capacita??o e atualiza??o dos profissionais para a melhoria do trabalho na ?rea de atua??o; dificuldades - desconhecimento da gest?o quanto ? vigil?ncia em sa?de e inexist?ncia de recursos financeiros; facilidades - interesse do servidor em se capacitar; levantamento dos temas: atua??o dos agentes de endemias, educa??o em sa?de para a popula??o, imuniza??o, vigil?ncia sanit?ria nos estabelecimentos e curso b?sico de vigil?ncia em sa?de. Dentre outros achados, foi poss?vel identificar a necessidade de implementa??o de a??es educacionais, voltadas para a forma??o e o desenvolvimento profissional e relacionadas ? vigil?ncia em sa?de para os trabalhadores da ?rea, com o intuito de propiciar a transforma??o dos processos de trabalho para a efetiva??o da vigil?ncia em sa?de.<br>Disserta??o (Mestrado) ? Programa de P?s-gradua??o em Ensino em Sa?de, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2014.<br>ABSTRACT
This research aims to know the employees profiles and perceptions concerning to workers health surveillance on training and professional development.It is a descriptive and explanatory study with a qualitative and quantitative approach and it was accomplished with professionals from the health surveillance department in a Middle East city in Minas Gerais. The data collection occurred in April and May, in 2013. It consisted of two parts: 1) Applying a structured questionnaire with social demographic data about professional training/development and performance; 2) Semi structured interviews, using a script with guiding questions. After the interviews accomplishment, the content analysis technique suggested by Bardin (2011) was used to analyze the results. The sample was compounded by 55 employees on a first phase and 20 on the second one. Among others, the following results were found: 58,2% of the interviewed people are agent combat endemic diseases workers; 61,8% are hired; 69,1% earn up to two minimum salaries; 41,8% have high school degree; 50% of the higher education professionals are graduated in health science field; 41,8% never took part in training courses; 78,2% of the interviewed professionals said to be trained to the jobs they develop; 58,2% of the professionals assigned the ?good? concept to their knowledge concerning to health surveillance. The following empiric categories were found: figuring out health surveillance ? prevention of risks and diseases to the population health; the importance of educational actions ? knowledge acquired through training and updating of professionals to job improvement in their working field; difficulties ? ignorance about management regarding to health surveillance and lack of financial resources; facilities ? server concernment in training; topics rising: endemic diseases agents performance, health education to population, immunization, health surveillance in the establishments and basic course in health surveillance. Among other findings, it was possible to identify the necessity in implementing educational actions aimed at professional training and development and related to health surveillance to the employees in this field, aiming to provide changes in the work processes to effectiveness the health surveillance.
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Andrade, Neto Sebastiao Gomes de. "Estimativa de expoentes cr?ticos em Percola??o." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18634.
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Previous issue date: 2010-03-31<br>In Percolation Theory, functions like the probability that a given site belongs to the infinite cluster, average size of clusters, etc. are described through power laws and critical exponents. This dissertation uses a method called Finite Size Scaling to provide a estimative of those exponents. The dissertation is divided in four parts. The first one briefly presents the main results for Site
Percolation Theory for d = 2 dimension. Besides, some important quantities for the determination of the critical exponents and for the phase transistions understanding are defined. The second shows an introduction to the fractal concept, dimension and classification. Concluded the base of our study, in the third part the Scale Theory is mentioned, wich relates critical exponents and the quantities described in Chapter 2. In the last part, through the Finite Size Scaling method, we determine the critical exponents fi and. Based on them, we used the previous Chapter scale relations in order to determine the remaining critical exponents<br>Na Teoria de Percola??o, fun??es como a probabilidade de um s?tio pertencer ao aglomerado percolante, tamanho m?dio dos aglomerados, etc. s?o descritas por meio de leis de pot?ncia e expoentes
cr?ticos. Esta disserta??o faz uso do m?todo chamado Escalonamento de Tamanho Finito para
fornecer uma estimativa desses expoentes. A disserta??o est? dividida em quatro partes. A primeira apresenta de forma r?pida os principais
resultados da Teoria da Percola??o por s?tios para dimens?o d = 2. Al?m disso, s?o definidas algumas
quantidades importantes para a determina??o dos expoentes cr?ticos e o para o entendimento sobre as transi??es de fase. A segunda parte apresenta uma introdu??o sobre o conceito de fractal, dimens?o e
classifica??o. Conclu?da a base do nosso estudo, na terceira parte ? mensionada a Teoria de Escala, a
qual relaciona os expoentes cr?ticos e as quantidades descritas no Cap?tulo 2. Na ?ltima parte, atrav?s do escalonamento de tamanho finito, determinamos os expoentes cr?ticos? ? e v. A partir desses,
usamos as rela??es de escala as rela??es descritas no Cap?tulo anterior para determinar os expoentes cr?ticos restantes
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Prokop, Ursula. "Rudolf Perco 1884-1942 : Von der Architektur des Roten Wien zur NS-Megalomanie /." Wien : Böhlau, 2001. http://catalogue.bnf.fr/ark:/12148/cb38942798t.
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Fernandez, Ríos Ledy Laura. "Frecuencia de causa de muerte en caninos menores de dos años diagnosticados mediante necropsias realizadas en el Laboratorio de Histología, Embriología y Patología Animal de la Facultad de Medicina Veterinaria de la Universidad Nacional Mayor de San Marcos período 2005-2015." Universidad Nacional Mayor de San Marcos, 2018. https://hdl.handle.net/20.500.12672/9668.
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Da a conocer las causas de muerte frecuentes en caninos menores de dos años de edad mediante un análisis retrospectivo de 295 protocolos de necropsia pertenecientes al Laboratorio de Histología, Embriología y Patología Animal de la Facultad de Medicina Veterinaria de la Universidad Nacional Mayor de San Marcos, Lima, Perú. La revisión abarcó 11 años (del 2005 al 2015), se empleó el método epidemiológico descriptivo de análisis a través de frecuencias teniendo las siguientes variables: causa de muerte, estación, raza, sexo y edad. La causa de muerte más frecuente resultó la infecciosa con 70.85% (209/295), seguida de la congénita con 5.76% (17/295) y el trauma con 5.42% (16/295), siendo menos frecuentes las causas inflamatoria, cardiovascular, degenerativa intoxicación, neoplasias, otras causas e indeterminada. En relación a las otras variables fueron frecuentes la edad de cero a seis meses, el sexo macho, la raza mestiza y la estación de invierno. Dentro de las razas puras, la más afectada fue el Bulldog con 11.35% (16/141). Dentro de las causas infecciosas, el Distémper canino fue el diagnóstico definitivo más frecuente con 28.57% (24/84), seguido por el Parvovirus canino con 17.86% (15/84); además se reportan patologías en caninos jóvenes, las cuales se creía de afección solo en caninos de edad avanzada, en un determinado tamaño o en razas específicas: Insuficiencia renal crónica, síndrome de Cushing, endocardiosis, lupus eritematoso sistémico, miocardiopatía dilatada, trombosis arteriopulmonar, hígado graso y megaesófago adquirido; se notifica seis agentes zoonóticos confirmados Leptospira spp (tres casos), Clostridium perfringes (dos casos); parásitos, Giardia lamblia (tres casos), Ancylostoma caninum (un caso), Toxocara canis (20 casos), Dypilidium caninum (25 casos) y cinco especímenes en cuya asociación parasitaria, al menos uno de los parásitos era zoonótico. Se concluye que el Distémper canino, la edad de cero a seis meses y la estación de invierno son las variables frecuentes de causa de muerte en caninos menores de dos años de edad.<br>Tesis
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Abbey, Ruth. "Nietzsche's middle period /." Oxford : Oxford university press, 2000. http://catalogue.bnf.fr/ark:/12148/cb38913909j.
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Washington, David Christopher. "Question slash period." Huntington, WV : [Marshall University Libraries], 2004. http://www.marshall.edu/etd/descript.asp?ref=447.
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Balsan, Jorge. "Perfil do teletrabalhador." Florianópolis, SC, 2001. http://repositorio.ufsc.br/xmlui/handle/123456789/79736.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.<br>Made available in DSpace on 2012-10-18T07:03:06Z (GMT). No. of bitstreams: 0Bitstream added on 2014-09-25T22:34:37Z : No. of bitstreams: 1
187950.pdf: 359472 bytes, checksum: 3a44206dc52b3940bc103e38df3c27ff (MD5)<br>O presente trabalho parte de uma revisão bibliográfica sobre o teletrabalho com o objetivo de identificar conceitos, a tecnologia de comunicação e informação empregada pelo teletrabalhador, abordando as competências fornecidas pelas Instituições de Ensino e as habilidades solicitadas e empregadas pelas empresas, buscando delinear o perfil do trabalhador para este novo posto de trabalho.
As dificuldades impostas pelo teletrabalho ocorrem em função de poucos estudos sobre o assunto e de uma melhor utilização da tecnologia de comunicação e informação no teletrabalho em busca de melhores resultados.
As empresas e trabalhadores têm buscado empregar o teletrabalho, visto que o mesmo apresenta vantagens para a empresa, trabalhador, sua família e a comunidade. Esta harmonia é importante para o bom desempenho.
No levantamento dos dados, optou-se pelo estudo de caso em uma Companhia onde o teletrabalho é adotado, delineando o perfil do teletrabalhador, demonstrando as vantagens e desvantagens trazidas ao mesmo.
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Cielo, Ivanete Dago. "Perfil do empreendedor." Florianópolis, SC, 2001. http://repositorio.ufsc.br/xmlui/handle/123456789/79812.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.<br>Made available in DSpace on 2012-10-18T07:44:57Z (GMT). No. of bitstreams: 0Bitstream added on 2014-09-25T19:45:58Z : No. of bitstreams: 1
186936.pdf: 16418284 bytes, checksum: 7866ed76cdb71f4c8c71810f0de1246e (MD5)<br>Este estudo, objetiva analisar o perfil empreendedor dos tomadores de Crédito junto ao Programa de geração de Emprego e Renda - PROGER- de Toledo Paraná no período de 1997 - 2000, no que tange as características comportamentais, fatores familiares e sociais, identificando as características que diferenciam os grupos adimplentes e inadimplentes. Inicialmente, fez-se um estudo sobre o empreendedorismo abordando a definição de empreendedorismo, aspectos históricos, citação das características comportamentais dos empreendedores e os principais traços do perfil empreendedor, enfocando os fatores que influenciam o desenvolvimento do empreendedorismo, e procurando identificar o perfil empreendedor, caracterizado pelos autores. É realizada também uma descrição e caracterização de empresa de pequena dimensão, envolvendo sua importância e participação na economia. Na seqüência fez-se a escolha de variáveis de pesquisa e dos fatores ligados a estas variáveis, que possibilitaram através da aplicação de questiona, verificar a existência de traços empreendedores em maior escala entre os empresários bem-sucedidos nas empresas de pequena dimensão, comprovando as teorias literárias a cerca de assunto, que empreendedorismo, é fator preponderante para o sucesso empresarial.
Palavras chave: empreendedorismo; empresa de pequena dimensão, perfil, PROGER.
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Residori, Elena <1994>. "Studiare spagnolo, perché?" Master's Degree Thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/15558.
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Con questa tesi si affronterà il tema dello studio didattico della lingua straniera, in questo caso lo spagnolo, attraverso dei questionari con domande relative alla lingua come materia di studio che sono stati sottoposti ai ragazzi della scuola secondaria di primo grado e un questionario che verrà sottoposto al docente di lingua per valutare, poi, che percezione ha dei suoi studenti comparando alcune domande che saranno uguali. Dopo aver fatto un excursus teorico su cosa si intende per didattica e studio della lingua straniera comprendendo le principali difficoltà che possono riscontrare i ragazzi come la motivazione e l’apprendimento, lo studio e l’analisi dei dati verrà effettuata tramite tabelle e grafici a torta per verificare se ciò che ci si aspetta da un’ipotesi iniziale sarà quello che presenteranno i risultati.
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Pérot, Estelle Maazouz Abderrahim. "Optimisation et modélisation du procédé de rotomoulage." Villeurbanne : Doc'INSA, 2007. http://docinsa.insa-lyon.fr/these/pont.php?id=perot.
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Celis, Samanez Noemit Norma. "Criptosporidiasis en caninos críados en comunidades campesinas de tres distritos del departamento de Puno." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2010. https://hdl.handle.net/20.500.12672/696.
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El objetivo del estudio fue estimar la prevalencia de Cryptosporidium sp. en caninos de comunidades campesinas, ubicadas en los distritos de Ajoyani; provincia de Carabaya; Palca y Santa Lucía; provincia de Lampa–Puno. Se recolectaron 123 muestras fecales de perros aparentemente sanos, de ambos sexos y diferentes edades, las que estuvieron comprendidas entre 1 mes y 16 años durante los meses de febrero y marzo del 2009. Las heces, fueron transportadas inmediatamente al Laboratorio del INIA-Quimsachata (Puno) donde se realizaron los frotices fecales, siendo fijados en metanol. Posteriormente se transportaron al Laboratorio de Parasitología de la FMV-UNMSM en Lima, para su diagnóstico; el cual se realizó usando la técnica de Ziehl-Neelsen modificada. La prevalencia general de Cryptosporidium sp. fue de 26.8±7.8%, se hallaron prevalencias de 19.0, 28.6 y 28.4% en los distritos de Ajoyani, Palca y Santa Lucía, respectivamente; los machos y hembras presentaron prevalencias de 28.3 y 17.6%, respectivamente y según los grupos etarios de 0-6, >6-12, >12-72 y >72 meses fueron de 46.2, 31.3, 19.7, 29.4%, respectivamente. Se aplicó la prueba de Chi cuadrado, con un nivel de significancia de 0.05. El análisis estadístico no mostró asociación significativa (p>0.05) entre este protozoo de caninos domésticos con el distrito, sexo y edad.
Palabras clave: Cryptosporidium sp, protozoo, zoonosis, prevalencia, perros.<br>-- The objective of this study was to estimate the prevalence of Cryptosporidium sp. in dogs of rural communities, located in the districts of Ajoyani; province Carabaya; Palca and Santa Lucia; province Lampa, Puno. Were collected 123 fecal samples from dogs apparently healthy, of both sexes and different ages, which were between 1 month and 16 during the months of February and March 2009. Feces were transported to the Laboratory of INIA Quimsachata (Puno) where are the faecal frotices being fixed in methanol. Subsequently were transported to the Parasitology Laboratory of the FMV-Lima, for diagnosis; which was performed using the Ziehl-Neelsen modified. The overall prevalence of Cryptosporidium sp. was 26.8±7.8%, were found prevalences of 19.0, 28.6 and 28.4% in the districts of Ajoyani, Palca, and St. Lucia, respectively, males and females, showed prevalences of 28.3 and 17.6% respectively and according to age groups 0 -6,> 6-12,> 12-72 and > 72 months were 46.2, 31.3, 19.7, 29.4%, respectively. Was applied Chi-square test with a significance level of 0.05. Statistical analysis showed no significant association (p> 0.05) between this protozoan of domestic dogs with the district, sex and age.
Keywords: Cryptosporidium sp, protozoa, zoonoses, prevalence, dogs.<br>Tesis
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Gon?alves, Juliana. "Forma??o do profissional sanitarista: caminhos e percal?os." Universidade Federal do Rio Grande do Norte, 2015. http://repositorio.ufrn.br/handle/123456789/20073.
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Previous issue date: 2015-03-23<br>A Sa?de Coletiva ? um projeto de luta por uma sa?de democr?tica, resolutiva,
equ?nime e que pretende assistir o corpo social e coletivo a partir de suas reais necessidades,
estando totalmente envolvida com quest?es de desigualdades, de determina??o social. Desse
modo, ? de fundamental import?ncia formar um profissional engajado com este projeto. O
presente estudo se prop?e a compreender a percep??o de docentes/militantes da Sa?de
Coletiva acerca da forma??o do profissional Sanitarista. Para tanto, procura-se responder ao
seguinte questionamento: Que elementos s?o relevantes para a forma??o do profissional
Sanitarista? Trata-se de uma pesquisa de campo, descritiva e explorat?ria, com abordagem
qualitativa. Para coleta dos dados, foi utilizada a t?cnica da entrevista semiestruturada junto a
profissionais veteranos enquanto Sanitaristas e docentes da ?rea de Sa?de Coletiva. Os dados
foram analisados ? luz da t?cnica de an?lise tem?tica de conte?do. Tal t?cnica consiste em
estruturar o texto em unidades, em categorias segundo reagrupamento anal?gico. Nesse
sentido, foram organizadas tr?s categorias de an?lise, cujos t?tulos foram guiados de acordo
com os objetivos do estudo, a saber: ?A Forma??o Institucional de Sanitaristas?; ?Elementos
que contribuem para a forma??o Sanitarista? e ?Caminhos poss?veis na forma??o Sanitarista?.
Destacou-se quatro principais elementos de forma??o sanitarista: Capacidade t?cnica para
desenvolver o trabalho de sanitarista, alicer?ada nos tr?s pilares conceituais da Sa?de
Coletiva; Arcabou?o, alicerce e respaldo nas Ci?ncias Sociais, no pensamento social em
sa?de; Hist?ria de vida do discente, implica??o deste com o objeto da Sa?de Coletiva;
Atua??o em campo, no territ?rio, diretamente integrado ao servi?o e sistema de sa?de. Os
entrevistados imaginam um caminho para forma??o sanitarista: a Sa?de Coletiva deve ser
bem trabalhada em sua teoria e pr?tica na gradua??o, seja em qualquer ?rea da sa?de e
obviamente na gradua??o em Sa?de Coletiva; os cursos Lato Sensu, especialmente as
resid?ncias, precisariam de uma readapta??o te?rica, dada a cria??o de cursos de gradua??o na
?rea; os cursos Stricto Sensu, enquanto formador de pesquisador e docente da ?rea, devem
desenvolver produ??es envolvidas com o sistema de sa?de e o objeto da Sa?de Coletiva, de
modo a trazer um retorno efetivo, em termos de aplicabilidade, no sistema de sa?de. Sugerese
que tal caminho deveria ser complementar, no sentido de agregar conhecimento ? medida
que se percorre pela gradua??o, p?s-gradua??o Lato Sensu e p?s-gradua??o Stricto Sensu. A
ideia, no geral, ? que o conjunto gradua??o-resid?ncia/especializa??o-mestrado/doutorado
componha uma forma??o linear, ascendente e complementar. Para acompanhar todo esse
processo de forma efetiva, faz-se necess?rio, e urgente, pensar em estrat?gias de regula??o
dos procedimentos formativos. Recomenda-se tamb?m mais estudos sejam realizados nesta
?rea, principalmente uma avalia??o mais criteriosa das gradua??es em Sa?de Coletiva, que ?
uma quest?o atual e relativamente nova sobre a forma??o na ?rea.<br>The public health is a project that struggles for a fair, resolutive and democratic health
and that aims to help the collective and social bodies starting from their real needs, being
totally involved with inequality and social determination issues. Thus, it is of fundamental
importance to form a professional commited to this project. This current study aims to
understand the perception of teachers/militants of Public Health about the graduation of
Healthcare professionals. Therefore, we look forward answering the following question:
Which elements are relevant to the formation of the sanitarian professional? This is a field
research, descriptive and exploratory, with a qualitative approach. For data collection, we
used a semi-structured interview technique with veteran professionals as sanitarians and
teachers of Public Health area. The data were analyzed based on the technique of thematic
analysis of subject. This technique consists in structuring the text in units, in categories
according analogic reunification. In this sense, were organized three analysis categories,
whose titles were guided according to the study objectives, namely: "The Institutional
Formation of Sanitarians"; "Elements that contribute to the Sanitarian formation " and
"Possible Paths in Sanitarian Formation". Four main elements of sanitarian formation were
emphasized: technical capacity to develop a sanitation work, based on three conceptual pillars
of Public Health; Framework, foundation and support on Social Sciences, in the social
concepts of health; Life history of the student, implication of this with the Public Health
object; Field operation, in the territory, directly integrated to the service and the health
system. The intervieweds imagine a path to the sanitarian formation: the Public Health should
be well explored in its theory and practice in graduation, in any health area and obviously in
the graduation of Public Health; the Lato Sensu courses, especially residency, would need a
theoretical upgrading, given the creation of undergraduate courses on the area; the Stricto
Sensu courses, while forming researchers and teachers in the area, should develop productions
involved with the health system and the object of Public Health, in order to bring an effective
return, in terms of applicability, in the health system. It is suggested that such a path should be
complementary, in a sense of adding knowledge as it travels through graduation, postgraduation
Lato Sensu and post-graduation Stricto Sensu. The idea, in general, is that the
graduate-residence set / specialization-mastering / PhD compose a linear formation, ascending
and complementary. To follow all this process effectively, it is necessary, and urgent, to think
of regulation strategies of the formating procedures. It is also recommended that more studies
are conducted in this area, specially a more careful evaluation of the undergraduate courses in
Public Health, which is a current and relatively new issue on formation in the area.
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Silva, Antonio Djackson Alves da. "Nova prova de resultados cl?ssicos de percola??o." PROGRAMA DE P?S-GRADUA??O EM MATEM?TICA APLICADA E ESTAT?STICA, 2017. https://repositorio.ufrn.br/jspui/handle/123456789/24995.
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Previous issue date: 2017-07-21<br>Um processo de percola??o modela o fen?meno da distribui??o ou transporte de fluidos em
um meio poroso. A varia??o de um par?metro do modelo revela a exist?ncia de, geralmente,
duas fases, uma fase dita subcr?tica e outra fase dita supercr?tica. Essas fases possuem
caracter?sticas globais distintas e a transi??o de uma dessas fases ? outra se d? em um
valor cr?tico do par?metro do modelo. O presente trabalho tem como objetivo apresentar
novas demonstra??es para resultados cl?ssicos no modelo de percola??o Bernoulli de elos,
a saber: o decaimento exponencial do raio de um aglomerado aberto na fase subcr?tica e
a cota inferior da probabilidade de percola??o.<br>A percolation process models the distribution and transport of fluids in porous media.
The variation of a model parameter reveals the existence of, generally, two phases, one
called subcritical and the other called supercritical. These phases bear distinct global
characteristics and the transition between phases takes place at a critical value for the
model parameter. The present work aims at presenting new proofs for some classical
results of Bond Bernoulli Percolation, namely: exponential decay of the radius of the
cluster at the origin in subcritical phase and a lower bound on probability of percolation.
21
Cornejo, Prado Nathann Jesús. "Seroprevalencia de N. caninum en perros de establos lecheros de la cuenca izquierda del Valle del Mantaro." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2004. https://hdl.handle.net/20.500.12672/1468.
Full textAbstract:
La neosporosis es una enfermedad emergente, considerada causa importante de aborto en el ganado bovino y enfermedad neuromuscular grave en perros. El objetivo del presente estudio fue determinar la seroprevalencia de Neospora caninum en perros de establos lecheros de la cuenca izquierda del Valle del Mantaro. Se evaluaron 124 sueros de perros, provenientes de 24 establos lecheros de las provincias de Huancayo, Jauja y Concepción. Se halló una prevalencia de anticuerpos contra N. caninum de 19.35 ± 6.95 % (24/124), en una dilución de 1:50, mediante la prueba de inmunofluorescencia indirecta. El porcentaje de establos que poseían al menos un perro infectado fue de 62.5 % (15/24). No se hallaron asociación entre la tasa de infección y las variables ubicación geográfica, edad, género y procedencia (del establo o de alrededor). Estos resultados demuestran que los caninos del Valle del Mantaro, presentan una prevalencia moderada de N. caninum, por lo que se recomienda el control del acceso de los canes a los establecimientos lecheros, además que esta infección esta presente en la mayoría de los establos del Valle del Mantaro.<br>The neosporosis is an emergent disease, considered important cause of abortion in the cattle and serious neuromuscular disease in dogs. The aim of the present study was to determine the seroprevalencia of Neospora caninum in dogs of dairy farms of the left basin of the Valley of Mantaro. 124 serum of dogs were evaluated of 24 dairy farms of the provinces: Huancayo, Jauja and Concepcion. A prevalencia of antibodies against N. caninum dectect was 19.35 ± 6.95 % (24/124), in a dilution of 1:50, by means of the indirect inmunofluorescense test. The percentage of stables that possessed at least an infected dog was 62.5 % (15/24). Association were not situated between the rate of infection and the variables geographical location, age, gender, and origin (of the stable or of around). This result shows, at dogs in the Valley of the Mantaro, a seroprevalence of N. caninum moderate, by what there is recommended the control of the aproach of the dogs for the dairy establishments, moreover that infection is present in the majority of stables in the Valley of the Mantaro.<br>Tesis
22
Knutson-Person, JoDean Lynn. "What are the effects of science outreach by college students with elementary school children?" Montana State University, 2011. http://etd.lib.montana.edu/etd/2011/knutson-person/Knutson-PersonJ0811.pdf.
Full textAbstract:
This project focused on developing a service learning group of college students to do science outreach with elementary students as a win-win opportunity to increase the content knowledge of all the students involved, give the college students the opportunity to empower the elementary students, and fulfill some of the needs of the college awareness program at an elementary school. Analysis of this project was completed using results from pre- and post-outreach experience questionnaires as a way to establish demographic information of the participants, get comparative awareness and interest of college and science information, and find some common points to make connections between the groups of students. Questionnaires were also used for the classroom teachers to understand how outreach benefited their classroom. Journals were utilized with college students as well as wrap-up meetings after each outreach experience in order to document personal experiences both as a mentor as well as students growing in their own content mastery. I also kept notes of the experience from my viewpoint.
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Sánchez, Chávez Ricardo. "Casuística de otitis canina bacteriana y su susceptibilidad en el laboratorio de microbiología y parasitología en el periodo 2001-2006." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2007. https://hdl.handle.net/20.500.12672/666.
Full textAbstract:
La otitis constituye un problema muy común representando entre 5 y 20% en la práctica veterinaria diaria. Dentro de las infecciones óticas bacterianas, se ha reportado al Staphylococcus intermedius como el agente causal más importante. El objetivo de este estudio fue determinar la frecuencia mensual, estacional y anual de casos de otitis bacteriana en el periodo 2001-2006 en el laboratorio de bacteriología de la FMV-UNMSM. Asimismo, determinar las especies bacterianas involucradas más comunes y la susceptibilidad de estas a los antibióticos. Los resultados de este estudio indican 429 casos, disminuyendo progresivamente desde el 2001 con 183 casos hasta el 2006 con 26 casos. Por otro lado, las infecciones óticas fueron en su mayoría monomicrobianas siendo el Staphylococcus intermedius, con 27,72%, el agente aislado con mayor frecuencia. Sin embargo, hay que tener en cuenta a importantes agentes como la Pseudomonas aeruginosa, Streptococcus sp. y Staphylococcus sp.. En las pruebas de susceptibilidad por el método de Kirby-Bauer, se encontró el mayor nivel de susceptibilidad de las bacterias a las quinolonas, aminoglucósidos, cefalosporinas y penicilinas combinadas con inhibidores de las betalactamasas. Mientras que las penicilinas, sulfas, tetraciclinas, lincosamidas y macrólidos fueron menos efectivos en inhibir el crecimiento de microorganismos.
Palabras Clave: Otitis, susceptibilidad, bacterias.<br>--- The otitis canine is a common disease, representing from 5 to 20% in a daily veterinary practice. Among the bacterial ear infections has been reported to Staphylococcus intermedius as the most important causative agent. The objective of this study was to determine the frequency monthly, seasonal and annual cases of bacterial otitis in the period 2001-2006 in the bacteriology laboratory of the FMV-UNMSM. Also, identify bacterial species involved and the most common bacterial susceptibility to antibiotics. The results of this study indicate 429 cases, decreasing gradually since 2001 with 183 cases until 2006 with 26 cases. Moreover, the ear infections were mostly caused by one agent being the most frequently agent isolated the Staphylococcus intermedius, with 27.72%. However, we must take in account important agents as Pseudomonas aeruginosa, Streptococcus sp. and Staphylococcus sp.. In susceptibility testing by the Kirby-Bauer method, we found the highest level of bacterial susceptibility to quinolones, aminoglycosides, cephalosporins and penicillins combined with inhibitors of betalactamics. Meanwhile, penicillins, sulfas, tetracyclines, macrolides and lincosamides were less effective in inhibiting the growth of microorganisms.
Key Words: Otitis, susceptibility, bacteria.<br>Tesis
24
Jithavech, Id. "Facility layout design considering risk for single-period and multi-period cases." Diss., Wichita State University, 2008. http://hdl.handle.net/10057/1953.
Full textAbstract:
The most desirable characteristic of a facility layout is its ability to maintain its efficiency over time while coping with the uncertainty in product demand. A traditional facility layout design method is governed by the flow intensity between departments, which is the product flow quantity between two departments. Hence, an error in the product demand assessment can render the layout inefficient with respect to material handling costs. Most of this research integrates uncertainty in the form of probability of occurrence of different from-to charts. In an environment where the variability of each product demand is independent, the derivation of “probabilistic from-to chart” based scenarios cannot be used to address uncertainty of individual demands. This dissertation presents a facility layout problem approach to deal with the uncertainty of each product demand in the design of facility layout. Two procedures are presented: the first procedure is utilized to assess the risk associated with the layout, while the second procedure is used to develop the layout that minimizes risk. Results from case studies have shown that the procedure results in reduction of risk by as much as 68 percent.<br>Thesis (Ph.D.) - Wichita State University, College of Engineering, Dept. of Industrial and Mechanical Engineering
25
O'Shaughnessy, Terence Joseph. "Short-period and long-period interpretations of the principle of effective demand." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278394.
Full text
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Jithavech, Id Krishnan Krishna K. "Facility layout design considering risk for single-period and multi-period cases /." A link to full text of this dissertation in SOAR, 2008. http://hdl.handle.net/10057/1953.
Full text
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Cailly, Claude. "Mutations d'un espace proto-industriel le Perche aux XVIIIe-XIXe siècles /." [Ceton, Orne] : Fédération des Amis du Perche, 1993. http://catalog.hathitrust.org/api/volumes/oclc/29182145.html.
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Gassmann, Horand Ingo. "Multi-period stochastic programming." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27304.
Full textAbstract:
This dissertation presents various aspects of the solution of the linear multi-period stochastic programming problem. Under relatively mild assumptions on the structure of the random variables present in the problem, the value function at every time stage is shown to be jointly convex in the history of the process, namely the random variables observed so far as well as the decisions taken up to that point.
Convexity enables the construction of both upper and lower bounds on the value of the entire problem by suitable discretization of the random variables. These bounds are developed in Chapter 2, where it is also demonstrated how the bounds can be made arbitrarily sharp if the discretizations are chosen sufficiently fine. The chapter emphasizes computability of the bounds, but does not concern itself with finding the discretizations themselves.
The practise commonly followed to obtain a discretization of a random variable is to partition its support, usually into rectangular subsets. In order to apply the bounds of Chapter 2, one needs to determine the probability mass and weighted centroid for each element of the partition. This is a hard problem in itself, since in the continuous case it amounts to a multi-dimensional integration. Chapter 3 describes some Monte-Carlo techniques which can be used for normal distributions. These methods require random sampling, and the two main issues addressed are efficiency and accuracy. It turns out that the optimal method to use depends somewhat on the probability mass of the set in question.
Having obtained a suitable discretization, one can then solve the resulting large scale linear program which approximates the original problem. Its constraint matrix is highly structured, and Chapter 4 describes one algorithm which attempts to utilize this structure.
The algorithm uses the Dantzig-Wolfe decomposition principle, nesting decomposition
levels one inside the other. Many of the subproblems generated in the course of this decomposition share the same constraint matrices and can thus be solved simultaneously. Numerical results show that the algorithm may out-perform a linear programming package on some simple problems.
Chapter 5, finally, combines all these ideas and applies them to a problem in forest management. Here it is required to find logging levels in each of several time periods to maximize the expected revenue, computed as the volume cut times an appropriate discount factor. Uncertainty enters into the model in the form of the risk of forest fires and other environmental hazards, which may destroy a fraction of the existing forest. Several discretizations are used to formulate both upper and lower bound approximations to the original problem.<br>Business, Sauder School of<br>Graduate
29
Gusm??o, Mar??lia Menezes. "Percep????o da custo." Escola Bahiana de Medicina e Sa??de P??blica, 2018. http://www7.bahiana.edu.br//jspui/handle/bahiana/2589.
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Previous issue date: 2018-02-26<br>A utiliza????o adequada dos recursos em sa??de ?? essencial para garantir uma medicina de qualidade. Para forma????o de profissionais mais custo-conscientes faz-se necess??ria a sua abordagem desde a gradua????o. Identificar a percep????o dos estudantes sobre esse tema permite tra??ar estrat??gias de ensino mais efetivas. Objetivo: Avaliar a percep????o da custo-consci??ncia em alunos de medicina do internato. M??todo: Estudo observacional de corte transversal, aplicada escala de percep????o de atitudes e question??rio de barreiras e consequ??ncias a custo-consci??ncia a alunos do nono ao d??cimo semestre na Escola Bahiana de Medicina e Sa??de P??blica. Realizadas compara????es dos resultados entre os semestres. Resultados: O escore m??dio da escala de percep????o de atitudes foi de 3,4 ?? 0,33, enquanto que o estimado para o estudo americano foi de 3,02. A maioria dos estudantes concordou que ???os m??dicos devem ter um papel mais importante na limita????o do uso de exames desnecess??rios??? (89,1%), ???os m??dicos deves estar cientes dos custos dos exames ou tratamentos que s??o recomendados por ele??? (81,9%) e que ???os m??dicos devem conversar com os pacientes sobre os custos ao discutir op????es de tratamento??? (73,1%). Em rela????o as barreiras e consequ??ncias, houve maior discord??ncia nos itens ???m??dicos s??o muitos ocupados para se preocupar com os custos...??? (74,2%), ???a pr??tica do cuidado custo-consciente vai debilitar a confian??a do paciente nos m??dicos??? (59%) e ???gastar mais dinheiro em sa??de leva a melhores resultados??? (51,7%). O escore m??dio da escala de percep????o de atitudes diferiu entre o nono (3,48 ?? 0,31) e o d??cimo semestres (3,32 ?? 0,33), p = 0,024. Conclus??o: Os estudantes do internato da Escola Bahiana de Medicina e Sa??de P??blica tem uma elevada percep????o das atitudes custo-conscientes, semelhante aos ao apresentado pelos estudantes americanos. Os alunos do d??cimo semestre apresentam uma pontua????o menor na escala de percep????o de atitudes do que alunos do nono semestre. A maioria dos alunos do internato discordou que os itens apresentados representassem barreiras ou consequ??ncias a pr??tica custo-consciente.
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AlcÃntara, Julianna Vasconcelos de. "ContribuiÃÃes especiais: perfil constitucional." Universidade Federal do CearÃ, 2007. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=3363.
Full textAbstract:
nÃo hÃ<br>The present work has as objective of study, the special contributions, a special type of taxes.
Such exaction is disciplined in art.149 of the Federal Constitution, which presents its main
characteristics: the destination of the product of its collection to one determined mean and its
non-restitution. From the analysis of some of the special contributions, such as of expenditure
of the service of public illumination, of the FGTS, the ones instituted by the Complementary
Law n 110/2001, the confederative and the assistive, it was noticed that they did not have the
previously cited characteristics. For this account, in order to facilitate the understanding of
this work, I started to call these special contributions of pseudo-contributions, since they did
not fit to the constitutional aspect. Those conclusions happened because of the study of the
Federal Constitution, doctrine and jurisprudence referring to the subject in question<br>O presente trabalho tem como objeto de estudo as contribuiÃÃes especiais, um tipo de espÃcie
tributÃria. Tal exaÃÃo à disciplinada no art.149 da ConstituiÃÃo Federal, que apresenta suas
principais caracterÃsticas: a destinaÃÃo do produto de sua arrecadaÃÃo a um determinado fim e
a nÃo-restituiÃÃo do mesmo. A partir da anÃlise de algumas das contribuiÃÃes especiais, tais
como as de custeio do serviÃo de iluminaÃÃo pÃblica, as do FGTS, as instituÃdas pela Lei
Complementar nÂ. 110/2001, a confederativa e a assistencial, notou-se que elas nÃo possuÃam
as caracterÃsticas anteriormente citadas. Por conta disso, a fim de facilitar a compreensÃo
deste trabalho, passei a denominar essas contribuiÃÃes especiais de pseudo-contribuiÃÃes, jÃ
que nÃo se enquadravam ao aspecto constitucional. Essas conclusÃes deram-se a partir do
estudo da ConstituiÃÃo Federal, doutrina e jurisprudÃncia referentes ao tema em questÃo
31
Rodrigues, Daniela Maria Duarte. "Perfil da homicida portuguesa." Bachelor's thesis, [s.n.], 2018. http://hdl.handle.net/10284/6954.
Full textAbstract:
Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciada em Criminologia<br>É sabida da dicotomia que existe na nossa sociedade em relação ao género masculino e feminino. Sabemos o quão estigmatizadas são as mulheres em detrimento dos homens por terem o estereótipo de serem frágeis, sentimentais e com fraca força física enquanto que o homem tem como estereótipo ser rude, forte e mais irracional que as mulheres agindo mais vezes sem pensar e movidos pelos seus sentimentos mais negativos de ira ou raiva. Tendo isto em conta, é mais fácil prever um homem capaz de matar alguém que uma mulher e quando esta o faz é logo associada a um ato masculino o que não corresponde à verdade. Ambos os géneros são capazes de matar sendo por isso de interesse que hajam estudos acerca desta problemática. Para isso será feita uma revisão da literatura acerca de todas as envolvências neste assunto.
O presente estudo tem como objetivo traçar um perfil da mulher portuguesa que já tenha cometido o crime de homicídio. Nesta sequência, sendo este projeto de graduação uma proposta de realização de uma investigação, a mesma terá como instrumento a realização de entrevistas às mulheres que estejam a cumprir pena pelo crime de homicídio e a análise de processos especificamente de mulheres homicidas para que possa ser feito um cruzamento de dados com o intuito de, então, traçar o perfil.<br>It is known of the dichotomy that exists in our society in relation to the male and female gender. We know how stigmatized women are to the detriment of men because they have the stereotype of being fragile, sentimental, and physically weak, whereas man has a stereotyped of being rude, strong, and more irrational than women, acting more often without thinking by moving of their more negative feelings such as anger. With this in mind, it’s easier to predict a man is more capable of killing than a woman, and when she does so it’s soon associated with a male act that doesn’t correspond to the truth. Both genres are capable of killing and therefore of interest are studies on this problem. For this, a review of the literature on all the implications in this subject will be made.
In this sequence, since this graduation project is a proposal for conducting an investigation, it will have as an instrument the interviewing of women who are serving a sentence for the crime of homicide and the analysis of cases specifically of homicidal women so that it can be done a crossing of data in order to then draw the profile.<br>N/A
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Martins, Tânia Sofia Teixeira. "O perfil fármaco terapêutico." Master's thesis, Instituto Superior de Economia e Gestão, 2014. http://hdl.handle.net/10400.5/8592.
Full textAbstract:
Mestrado em Decisão Económica e Empresarial<br>A insuficiência cardíaca é uma doença associada a altas taxas de mortalidade e de internamentos, que afecta sobretudo a população com mais de 65 anos. A sua prevalência encontra-se em crescimento em diversos países, devido em grande parte ao incremento na esperança de vida e ao desenvolvimento de medicamentos mais eficazes. Diversos estudos sugerem que os internamentos hospitalares constituem o principal fator para o aumento dos custos de tratamento associados a esta patologia e, como tal, seria benéfico a definição de estratégias para a sua redução. O objectivo deste trabalho é comparar o consumo de medicamentos dentro dos mesmos Grupos de Diagnósticos Homogéneos (GDH) em hospitais diferentes, nomeadamente o Hospital Garcia de Orta e o Hospital Prof. Dr. Fernando Fonseca. Para tal, foram utilizados métodos de regressão linear múltipla para investigar a influência de diversas variáveis que descrevem o episódio de internamento sobre o custo com medicamentos. Os resultados sugerem que o consumo de medicamentos nos dois hospitais é similar para um dado GDH, o que é uma das questões fulcrais deste estudo. Após a análise de dados, apurámos através da análise exploratória e ajuste de modelos que os custos com medicamentos aumenta em média com o número de dias de internamento, sendo isso mais notório para o Hospital Garcia da Orta. No entanto, a idade e o sexo não parecem ter um efeito apreciável no custo. Adicionalmente, em algumas regressões foi encontrada evidência de heterocedasticidade, problema que teve de ser solucionado através da estimação robusta de White.<br>Heart failure is a disease associated with high mortality rates and hospital admissions. It mostly affects the population aged 65 or more and its prevalence is growing in many countries, mainly due to the increase of life expectancy and the development of new and more effective treatments. Previous research suggests that a large proportion of the treatment's cost of this pathology is comprised of hospital internments. Thus, it would be of interest to set out strategies to its reduction. The purpose of the present study is to compare the associated with cost of medication within the same Diagnosis Related Groups (DRG) in different hospitals, namely in Hospital Garcia da Orta and Hospital Prof. Dr. Fernando Fonseca. To do so, we use multiple linear regression methods to select the variables that explain the medicines' cost. The results suggest that a patient of a given DRG uses approximately the same resources regardless of the hospital where (s)he receives medical assistance. Thus, we conclude the cost associated with medication is the same for a given DRG. In addition, we find that the average associated with medication increases with the length of stay. This seems to be particularly true for Hospital Garcia da Orta. On the other hand, explanatory variables such as age and sex do not seem have a significant effect in the medication cost. To correct the standard errors for the presence of heteroskedasticity we used White's robust covariance matrix.
33
Harnau, Jonas. "Age-period-cohort models." Thesis, University of Oxford, 2018. http://ora.ox.ac.uk/objects/uuid:b23d5253-739a-4660-8505-034c6114eed2.
Full textAbstract:
While over-dispersed Poisson age-period-cohort and extended chain-ladder models are used in a number of fields, so far no rigorous statistical theory has been available. We consider models for aggregate data organized in a two-way table with age and cohort as indices, but without measures of exposure. In these models, used for example in actuarial science, demography, economics, epidemiology and sociology, the number of parameters grows with the number of observations. Thus, standard asymptotic theory is invalid. In Chapter 2, we propose a repetitive structure that keeps the dimension of the table fixed while increasing the latent exposure. We pair this with the assumptions of infinitely divisible distributions which include a variety of compound Poisson models and Poisson mixture models. We then show that Poisson quasi-likelihood estimation results in asymptotic t parameter distributions, F inference, and t forecast distributions. In Chapter 3, we build on the asymptotic framework from Chapter 2 and develop tests for model specification. The over-dispersed Poisson model assumes that the over-dispersion is common across the data. A further assumption is that effects do not have breaks, for example age effects do not vary over cohorts. A log-normal age-period-cohort model makes similar assumptions. We show that these assumptions can easily be tested and that similar tests can be used in both models. In Chapter 4, we develop a non-nested test that allows one to evaluate whether the over-dispersed Poisson or log-normal model is the better choice for the data. While the over-dispersed Poisson model imposes a fixed variance to mean ratio, the log-normal models assumes the same for the standard deviation to mean ratio. We leverage this insight to propose a test that has high power to distinguish between the two models. Again, the theory is asymptotic but does not build on a large size of the array and instead makes use of information accumulating within the cells.
34
Uriarte, Luiz Ricardo. "Identificação do perfil intraempreendedor." Florianópolis, SC, 2000. http://repositorio.ufsc.br/xmlui/handle/123456789/78206.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.<br>Made available in DSpace on 2012-10-17T11:25:49Z (GMT). No. of bitstreams: 1
174612.pdf: 357412 bytes, checksum: 0b143167942aa4dc004cdabd5539f757 (MD5)<br>O presente trabalho analisa e compara os conceitos de empresário, empreendedor e intraempreendedor, além de abordar esses temas pelo lado comportamental, apoiado na psicologia. O embasamento teórico, além de apresentar a fundamentação necessária para este trabalho, tem como objetivo expor as diferenças entre os gerentes tradicionais, os empreendedores e os intraempreendedores; questão relevante que enfatiza as características fundamentais para alcançar o sucesso no mercado de trabalho. Objetiva também apresentar uma avaliação do perfil intraempreendedor dos indivíduos, fazendo uso de um teste desenvolvido com embasamento psicológico. Teste esse composto por um conjunto de afirmações com significado implícito, relacionado com as características intraempreendedoras de maior relevância, analisando o comportamento do indivíduo e comparado às características intraempreendedoras existentes na literatura e àquelas observadas na prática. Com base no resultado do teste, tem-se um material capaz de avaliar se o indivíduo tem ou não um perfil intraempreendedor, para que suas características possam ser aprimoradas, no caso do indivíduo avaliado, ou na ajuda de uma contratação, no caso do empresário que deseja contratar intraempreendedores.
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Alcântara, Julianna Vasconcelos de. "Contribuições especiais: perfil constitucional." reponame:Repositório Institucional da UFC, 2007. http://www.repositorio.ufc.br/handle/riufc/12515.
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ALCÂNTARA, Julianna Vasconcelos de. Contribuições especiais: perfil constitucional. 2007. 115 f.: Dissertação (mestrado) - Universidade Federal do Ceará, Programa de Pós-Graduação em Direito, Fortaleza-CE, 2007.<br>Submitted by Natália Maia Sousa (natalia_maia@ufc.br) on 2015-05-28T13:20:31Z
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Previous issue date: 2007<br>The present work has as objective of study, the special contributions, a special type of taxes. Such exaction is disciplined in art.149 of the Federal Constitution, which presents its main characteristics: the destination of the product of its collection to one determined mean and its
non-restitution. From the analysis of some of the special contributions, such as of expenditure of the service of public illumination, of the FGTS, the ones instituted by the Complementary Law nº 110/2001, the confederative and the assistive, it was noticed that they did not have the previously cited characteristics. For this account, in order to facilitate the understanding of this work, I started to call these special contributions of pseudo-contributions, since they did not fit to the constitutional aspect. Those conclusions happened because of the study of the
Federal Constitution, doctrine and jurisprudence referring to the subject in question.<br>O presente trabalho tem como objeto de estudo as contribuições especiais, um tipo de espécie tributária. Tal exação é disciplinada no art.149 da Constituição Federal, que apresenta suas principais características: a destinação do produto de sua arrecadação a um determinado fim e
a não-restituição do mesmo. A partir da análise de algumas das contribuições especiais, tais como as de custeio do serviço de iluminação pública, as do FGTS, as instituídas pela Lei Complementar nº. 110/2001, a confederativa e a assistencial, notou-se que elas não possuíam as características anteriormente citadas. Por conta disso, a fim de facilitar a compreensão
deste trabalho, passei a denominar essas contribuições especiais de pseudo-contribuições, já que não se enquadravam ao aspecto constitucional. Essas conclusões deram-se a partir do estudo da Constituição Federal, doutrina e jurisprudência referentes ao tema em questão.
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Mishra, Gaurav. "Development of Person-Person Network and Interacting PTTS in EpiSimdemics." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/64160.
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Communications over social media, telephone, email, text etc have emerged as an integral part of modern society and they are popularly used for the expression of anger, anxiety, fear, agitation and opinion by the people. People's social interaction tend to increase dramatically during periods of epidemics, protest and calamities. Therefore, above mentioned communication channels plays an important role in the spread of infectious phenomenon, like rumors, fads and effects. These infectious phenomena alters people's behavior during disease epidemic [1][2].
Social contact networks and epidemics co-evolve [1][2]. The spread of a disease influences people's behavior which in turn changes their social contact network, thereby altering the disease spread itself. As a result, there is a need for modeling the spread of these infectious phenomena that lead to changes in behavior. Their propagation among population primarily depends on the social contact network. The nature of social contagion spread is very similar to the spread of any infectious disease as they are contagious in nature. To spread contagious disease requires direct exposure to an infectious agent, whereas social contagions can be spread using various communications media like social networking forums, phones, emails and tweets.
EpiSimdemics is an individual-based modeling environment. It uses a people-location bipartite graph as the underlying network [3]. In its current form, EpiSimdemics requires two people to interact at a location to model simulations. Thus, it cannot simulate the spread of social contagions that do not necessarily require the meeting of two agents at a location.
We enhance EpiSimdemics by incorporating Person-Person network, which can model communications between people that are not contact based such as communications over email, phone, text and tweet. This Person-Person network is used to model effects (social contagion) which induce behavioral changes in population and thus impacting the disease spread. The disease spread is modeled on Person-Location network. This leads to the scenario of two interacting networks: Person-Person network modeling social contagion and Person-Location modeling disease. Theoretically, there can be multiple such networks modeling various interacting phenomena.
We demonstrate the usefulness of this network by modeling and simulating two interacting PTTSs (probabilistic timed transition systems). To model disease epidemics, we have defined Disease Model and to model effects (social contagion), we have defined Fear Model. We show how these models influence each other by performing simulations on EpiSimdemics with interacting Disease and Fear Model. Therefore a model that does not include the affect adaptations on disease epidemics and vice-versa, fails to reflect the actual behavior of a society during disease epidemic spread. The addition of Person-Person network to EpiSimdemics will allow for a better understanding of the affect adaptions, which can include behavior changes in society during an epidemic outbreak. This would lead to effective interventions and help to better understand the dynamics of disease epidemic.<br>Master of Science
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Soares, Roosewelt Fonseca. "Fractais e Percola??o na Recupera??o de Petr?leo." Universidade Federal do Rio Grande do Norte, 2007. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16542.
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Previous issue date: 2007-12-17<br>The complex behavior of a wide variety of phenomena that are of interest to physicists, chemists, and engineers has been quantitatively characterized by using the ideas of fractal and multifractal distributions, which correspond in a unique way to the geometrical shape and dynamical properties of the systems under study. In this thesis we present the Space of Fractals and the methods of Hausdorff-Besicovitch, box-counting and Scaling to calculate the fractal dimension of a set. In this Thesis we investigate also percolation phenomena in multifractal objects that are built in a simple way. The central object of our analysis is a multifractal object that we call Qmf . In these objects the multifractality comes directly from the geometric tiling. We identify some differences between percolation in the proposed multifractals and in a regular lattice. There are basically two sources of these differences. The first is related to the coordination number, c, which changes along the multifractal. The second comes from the way the weight of each cell in the multifractal affects the percolation cluster. We use many samples of finite size lattices and draw the histogram of percolating lattices against site occupation probability p. Depending on a parameter, ρ, characterizing the multifractal and the lattice size, L, the histogram can have two peaks. We observe that the probability of occupation at the percolation threshold, pc, for the multifractal is lower than that for the square lattice. We compute the fractal dimension of the percolating cluster and the critical exponent β. Despite the topological differences, we find that the percolation in a multifractal support is in the same universality class as standard percolation. The area and the number of neighbors of the blocks of Qmf show a non-trivial behavior. A general view of the object Qmf shows an anisotropy. The value of pc is a function of ρ which is related to its anisotropy. We investigate the relation between pc and the average number of neighbors of the blocks as well as the anisotropy of Qmf. In this Thesis we study likewise the distribution of shortest paths in percolation systems at the percolation threshold in two dimensions (2D). We study paths from one given point to multiple other points<br>O comportamento complexo de uma ampla variedade de fen?menos que s?o de interesse de matem?ticos, f?sicos, qu?micos e engenheiros ? caracterizado quantitativamente por meio de id?ias de distribui??es de fractais e multifractais, que correspondem de modo ?nico ? forma geom?trica e a propriedades din?micas dos sistemas em estudo. Nesta tese apresentamos o Espa?o dos Fractais e os m?todos de Hausdorff-Besicovitch, de Contagem de Caixas e de Escala, para calcular a Dimens?o Fractal de um Conjunto. Estudamos tamb?m fen?menos de percola??o em objetos multifractais constru?dos de maneira simples. O objeto central de nossas an?lises ? um objeto multifractal que chamamos de Qmf . Nestes objetos a multifractalidade surge diretamente da sua forma geom?trica. Identificamos algumas diferen?as entre percola??o nos multifractais que propusemos e percola??o em uma rede quadrada. Existem basicamente duas fontes destas diferen?as. A primeira est? relacionada com o n?mero de coordena??o, c, que muda ao longo do multifractal. A segunda vem da maneira como o peso de cada c?lula no multifractal afeta o aglomerado percolante. Usamos muitas amostras de redes de tamanho finito e fizemos o histograma de redes percolantes versus a probabilidade de ocupa??o p. Dependendo de um par?metro, ρ, que caracteriza o multifractal e o tamanho da rede, L, o histograma pode ter dois picos. Observamos que a probabilidade de ocupa??o no limiar de percola??o, pc, para o multifractal, em suporte d = 2, ? menor do que para a rede quadrada. Calculamos a dimens?o fractal do aglomerado percolante e o expoente cr?tico β. A despeito das diferen?as topol?gicas, encontramos que a percola??o em um suporte multifractal est? na mesma classe de universalidade da percola??o padr?o. A ?rea e o n?mero de vizinhos dos blocos de Qmf apresentam um comportamento n?o-trivial. Uma vis?o geral do objeto Qmf mostra uma anisotropia. O valor de pc ? uma fun??o de ρ que est? relacionada com esta anisotropia. Analisamos a rela??o entre pc e o n?mero m?dio de vizinhos dos blocos, assim como, a anisotropia de Qmf. Nesta tese estudamos tamb?m a distribui??o de caminhos m?nimos em sistemas percolativos no limiar de percola??o em duas dimens?es (2D). Estudamos caminhos que come?am em um determinado ponto e terminam em v?rios outros pontos. Na terminologia da ind?stria do petr?leo, ao ponto inicial dado associamos um po?o de inje??o (injetor) e aos outros pontos associamos po?os de produ??o (produtores). No caso padr?o apresentado anteriormente de um po?o de inje??o e um po?o de produ??o, separados por uma dist?ncia euclidiana r, a distribui??o de caminhos m?nimos l, P(l|r), apresenta um comportamento de lei-de-pot?ncia com expoente gl = 2, 14 em 2D. Analisamos a situa??o de um injetor e uma matriz A de produtores. Configura??es sim?tricas de produtores levam a uma distribui??o, P(l|A), com um ?nico pico, que ? a probabilidade que o caminho m?nimo entre o injetor e a matriz de produtores seja l, enquanto que as configura??es assim?tricas levam a v?rios picos na distribui??o P(l|A). Analisamos situa??es em que o injetor est? fora e situa??es em que o injetor est? no interior do conjunto de po?os produtores. O pico em P(l|A) nas configura??es assim?tricas decai mais r?pido do que no caso padr?o. Para os caminhos muito longos todas as configura??es estudadas exibiram um comportamento de lei-de-pot?ncia com o expoente g ≃ gl.
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Silva, Isaac Dayan Bastos da. "An?lise e compara??o entre algoritmos de percola??o." Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17000.
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Previous issue date: 2008-07-25<br>In this work, we study and compare two percolation algorithms, one of then elaborated by Elias, and the other one by Newman and Ziff, using theorical tools of algorithms complexity and another algorithm that makes an experimental comparation. This work is divided in three chapters. The first one approaches some necessary definitions and theorems to a more formal mathematical study of percolation. The second presents technics that were used for the estimative calculation of the algorithms complexity, are they: worse case, better case e average case. We use the technique of the worse case to estimate the complexity of both algorithms and thus we can compare them. The last chapter shows several characteristics of each one of the algorithms and through the theoretical estimate of the complexity and the comparison between the execution time of the most important part of each one, we can compare these important algorithms that simulate the percolation.<br>Nesta disserta??o estudamos e comparamos dois algoritmos de percola??o, um elaborado por Elias e o outro por Newman e Ziff, utilizando ferramentas te?ricas da complexidade de algoritmos e um algoritmo que efetuou uma compara??o experimental. Dividimos este trabalho em tr?s cap?tulos. O primeiro aborda algumas defini??es e teoremas necess?rios a um estudo matem?tico mais formal da percola??o. O segundo apresenta t?cnicas utilizadas para o c?lculo estimativo de complexidade de algoritmos, sejam elas: pior caso, melhor caso e caso m?dio. Utilizamos a t?cnica do pior caso para estimar a complexidade de ambos algoritmos e assim podermos compar?-los. O ?ltimo cap?tulo mostra diversas caracter?sticas de cada um dos algoritmos e atrav?s da estima- tiva te?rica da complexidade e da compara??o entre os tempos de execu??o da parte mais importante de cada um, conseguimos comparar esses importantes algoritmos que simulam a percola??o
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Pohlmann, Jörg. "Entstehung, Rechtsträgerschaft und Auflösung der juristischen Person : dogmengeschichtliche Betrachtungen im Vorfeld des BGB-Vereinsrechts 1900 /." Frankfurt am Main [u.a.] : Lang, 2007. http://www.gbv.de/dms/spk/sbb/recht/toc/519806174.pdf.
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Hössli, Bernhard. "Die schweizerische juristische Person & Co. : Abgabe- und gesellschaftsrechtliche Aspekte unter besonderer Berücksichtigung des schweizerisch-deutschen Verhältnisses /." Bern ; Stuttgart ; Wien : Haupt, 2008. http://deposit.d-nb.de/cgi-bin/dokserv?id=3069993&prov=M&dok%5Fvar=1&dok%5Fext=htm.
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Zárate, Rendón Daniel Alexis. "Prevalencia de Giardia sp. en caninos (Canis familiaris) de los distritos del Cono Sur de Lima Metropolitana." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2003. https://hdl.handle.net/20.500.12672/1565.
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La giardiasis canina, parasitosis causada por Giardia sp., es un problema de gran impacto en la salud canina reconocida en todo el mundo por ser causa de trastornos digestivos, sobre todo en animales jóvenes y además de ser reconocido el potencial riesgo zoonótico que involucra mencionándose la posibilidad de que la giardiasis canina sea reservorio en la epidemiología de la giardiasis humana. El objeto del presente estudio fue determinar la prevalencia de Giardia sp. en caninos domésticos en el Cono Sur de la cuidad de Lima, Perú. Para tal fin se recolectaron 204 muestras de heces de caninos domésticos procedentes de los distritos de Surco, Barranco, Chorrillos, San Juan de Miraflores, Villa Maria del Triunfo y Villa El Salvador, estratificados según el nivel socioeconómico de los propietarios. Las muestras se analizaron mediante las Técnicas de examen directo y Sedimentación espontánea para la detección de Giardia sp.. Los resultados generales indicaron que de acuerdo a la prueba de Examen directo el 8,82%±3,89 (19/204) de las muestras resultaron positivas para Giardia mientras que mediante la prueba de Sedimentación espontánea, la prevalencia fue de 15,69%±4,99 (32/204). La técnica de Sedimentación espontánea demostró ser más sensible que el Examen directo hallándose diferencia estadísticas significativas mediante la prueba de Kappa-McNemar. No se encontró relación estadística significativa entre la presencia de Giardia y el nivel socioeconómico al usar la prueba de Regresión logística. No se encontró relación estadísticas entre la presencia de Giardia y el sexo de los canes. Los cachorros mostraron un mayor porcentaje de positividad que los animales adultos y se encontró relación estadística significativa entre la edad del animal y la infección por Giardia en los resultados de la Sedimentación espontánea y una tendencia estadística en el Examen directo. Así mismo las formas parasitarias del organismo fueron más frecuentes detectadas en heces sueltas que en heces normales existiendo diferencias estadísticas significativas. Con estos resultados se comprueba la existencia de una prevalencia relativamente moderada de Guardia sp. en la población canina de una importante zona urbana de Lima esto sugiere que la giardiasis canina en Lima constituye un serio problema para la Salud Pública<br>Canine giardiasis, parasitosis caused by Giardia spp., is a problem with great impact in canine health recognized all over the world to be cause of digestive upsets, specially in young animals and it is also recognized the potential zoonotic risk which involves mentioning the possibility of being reservoir in the epidemiology of human giardiasis. The object of the present study was to assess the prevalence of Giardia spp. in domesticcanines in the South Cone of Lima City, Perú. To this end 204 domestic canines fecal samples from the districts of Surco, Barranco, Chorrillos, San Juan de Miraflores, Villa Maria del Triunfo y Villa El Salvador were recolected, stratified according to the socioeconomic level of the owners. Samples were analized through thechniques of Direct examination and Spontaneous sedimentation for detecting Giardia spp. The general results indicated that according to Direct examination test 8,82%±3,89 (18/204) of samples were positive to Giardia Whereas through Spontaneous sedimentation test, the prevalence was of 15,69%±4,99 (32/204). Spontaneous sedimentation technique showed to be more sensible than Direct examination, founding significative statistical differences through Kappa-McNemar test. It was no found significative statistical relationship between socioeconomic level and presence of Giardia When using Logistic Regression Test. It was not found significative statistical relationship between presence of Giardia and dog genus. Puppies shower a higher percentage of positivity than adult animal and it was found significative statistical relationship between animal age and Giardia infection in Spontaneous sedimentation results and a statistical differences. With these results it was proved the existence of a moderate prevalence of Giardia spp. infection in canine population of South Cone of Lima City; suggesting that canine giardiasis in Lima would be a serious problem of Public Health.<br>Tesis
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Vega, Obregón Luis Alfredo. "Prevalencia de Neospora caninum en perros pastores de cinco sectores de las unidades de producción de la empresa Rural Alianza-Puno." Master's thesis, Universidad Nacional Mayor de San Marcos, 2007. https://hdl.handle.net/20.500.12672/11066.
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Determina la prevalencia de Neospora caninum en perros pastores procedentes de cinco zonas de producción de la empresa Rural Alianza ubicado en el departamento de Puno. Se evaluaron 122 muestras de suero canino, recolectadas en los meses de febrero y marzo del 2004 y evaluadas mediante la prueba de Inmunofluorescencia Indirecta (IFI). Del total de muestras evaluadas se halló una prevalencia de 14.75 ± 6.29 % (18/122), en una dilución de 1:50. Al evaluar las variables procedencia, edad y sexo, mediante Chi² no se halló diferencia estadística significativa. Este estudio demostró que los perros de la empresa Rural Alianza poseen una prevalencia moderada ante Neospora caninum. Además la prevalencia hallada se relaciona con los estudios realizados en camélidos sudamericanos y bovinos al pastoreo en el departamento de Puno, lo que demostraría que existiría una relación entre los hospedadores intermediarios y el hospedador definitivo, facilitando la transmisión horizontal.<br>Tesis
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Carnevale, Rita Maria Silvia. "Perfil de maturidade de dirigentes de empresas de Porto Alegre : estudo baseado no modelo de Chris Argyris." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2000. http://hdl.handle.net/10183/2880.
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O estudo sobre maturidade gerencial desenvolveu-se com base no modelo de Chris Argyris e foi enriquecido com reflexões, proposições e indagações de outros autores que, direta ou indiretamente, estudaram o comportamento de dirigentes em organizações de aprendizagem e de empresas excelentes. O estudo foi realizado a partir das manifestações de dirigentes de empresas de pequeno, médio e grande porte, localizadas no Município de Porto Alegre. Das sete dimensões estudadas - desdobradas em atitudes e habilidades - verificou-se que os dirigentes consideram muito importantes, a iniciativa e a perspectivas de ação; importantes, em ordem decrescente de percentual de respostas, autonomia e autocontrole; seguidas, em igualdade de condições, pela flexibilidade e auto-estima, e finalmente pela dimensão interesse. Foram constatadas diferenças significativas de respostas apresentadas pelos dirigentes do sexo feminino em relação às respostas fornecidas pelos do sexo masculino, assim como das respostas fornecidas por dirigentes que há mais tempo estão na empresa ou no exercício da função em relação aos que têm menos tempo de exercício profissional. Também foram constatados resultados surpreendentes que confirmam a interferência de aspectos culturais e educacionais nas respostas dadas. As variáveis idade, tempo na organização e no exercício da função na empresa demonstraram também sua interferência. Os resultados da pesquisa permitiram igualmente divisar caminhos, onde existem elos importantes, sendo o principal o de considerar o homem como agente de sua história e de sua empresa, na medida em que ele se conhecer mais e intencionalmente realizar vivências que o levem a um desenvolvimento pessoal – alcançar sua maturidade na empresa. São feitas reflexões que requerem alternativas diferenciadas de intervenção para as Universidades e Escolas Técnicas, para as áreas de consultoria e de Recursos Humanos das Empresas. Também se confirmou a necessidade de serem realizados novos estudos para aprofundar a temática, tanto em nível empresarial, quanto acadêmico.
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Patten, Shirley Fay. "Pottery from the late period to the early Roman period from Dakhleh Oasis, Egypt." Australia : Macquarie University, 2000. http://hdl.handle.net/1959.14/44492.
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Thesis (PhD)--Macquarie University, Division of Humanities, Dept. of Ancient History, 2000.<br>Bibliography: p. 475-498.<br>PART I -- Thesis introduction -- Location, environment and routes of the Western Desert -- Cultural, historical and archaeological setting of Dakhleh Oasis -- Introduction to the vessel typology -- Introduction to the site catalogue -- Technology of pottery manufacture -- Fabrics and wares -- Conclusion -- PART II -- The vessel typology -- The site catalogue.<br>This thesis analyses a body of largely unpublished ceramic material from Dakhleh Oasis in the Western Desert of Egypt. The material is primarily from the survey of Dakhleh Oasis and the testing of sites by members of the Dakhleh Oasis Project and, except for some Phase 4 material recovered from excavations at Ismant el-Kharab, is unstratified. It covers a thousand years of Egyptian pottery-making from the eighth century BC to the late second century AD. -- A comprehensive survey of published and unpublished material from other sites in Egypt and adjacent regions has been undertaken to acquire comparative material for the pottery from Dakhleh Oasis. In addition, a study of the technical characteristics of the vessels that have remained accessible has been undertaken to describe and explain ancient pottery practices and to build up a framework for comparative purposes. -- With this body of information, a vessel typology divided into two series, each of which are further divided into two phases, has been devised and the chronology of the vessels determined. This ceramic typology has been used to compare surveyed sites of different utilisation - cemetery, settlement and temple sites - and to establish a dating system for these sites. The resulting chronology will be a guide to the determination of future excavations in the oasis and will assist in the on-going study of the socio-economic development of the oasis. The typology also provides a corpus of pottery for the processing of material from future excavations in Dakhleh Oasis and information for other ceramicists working in Egypt and elsewhere. -- The comparative survey of ceramic material from other sites demonstrates that Dakhleh Oasis, although a remote region in the Western Desert of Egypt, maintained contact with the Nile Valley and more distant areas. It also shows that, while this interaction influenced local pottery styles, the oasis retained and developed its own pottery traditions. -- In addition, a preliminary analysis has been made of fabrics and clays for descriptive purposes and to increase knowledge of the ancient ceramics from the oasis. -- A database has also been built to store and manipulate the information on this extensive body of ceramic material from Dakhleh Oasis. The pottery drawings have been produced in a format readily accessible for electronic transfer to researchers in the field of Egyptian ceramics.<br>Mode of access: World Wide Web.<br>498, [199] p. ill. (some col.), maps
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Marshall, Peter James. "Behavioural inhibition, heart period, and heart period variability in young children and their mothers." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.627319.
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Feyrer, Stefan. "Detektion, Lokalisierung und Verfolgung von Personen mit einem mobilen Serviceroboter /." Aachen : Shaker, 2000. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009095642&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Krieger, Thomas P. U. "Innovative Sensorkonzepte und Signalverarbeitungsstrategien zur Bewegungserkennung und Präsenzkontrolle von Personen." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965787230.
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TANGUY, SCAON BRIGITTE. "Incidence de la teratospermie sur la fecondation in vitro : apport du mini gradient de percoll dans le traitement des spermes teratospermiques." Lille 2, 1991. http://www.theses.fr/1991LIL2M300.
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Oliveira, Ricardo Wanderley de. "An?lise de modelos geol?gicos utilizando percola??o din?mica." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12891.
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Previous issue date: 2009-03-19<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>In the present study we elaborated algorithms by using concepts from percolation theory which analyze the connectivity conditions in geological models of petroleum reservoirs. From the petrophysical parameters such as permeability, porosity, transmittivity and others, which may be generated by any statistical process, it is possible to determine the portion of the model with more connected cells, what the interconnected wells are, and the critical path between injector and source wells. This allows to classify the reservoir according to the modeled petrophysical parameters. This also make it possible to determine the percentage of the reservoir to which each well is connected. Generally, the connected regions and the respective minima and/or maxima in the occurrence of the petrophysical parameters studied constitute a good manner to characterize a reservoir volumetrically. Therefore, the algorithms allow to optimize the positioning of wells, offering a preview of the general conditions of the given model s connectivity. The intent is not to evaluate geological models, but to show how to interpret the deposits, how their petrophysical characteristics are spatially distributed, and how the connections between the several parts of the system are resolved, showing their critical
paths and backbones. The execution of these algorithms allows us to know the properties of the model s connectivity before the work on reservoir flux simulation is started<br>No presente estudo foram elaborados algoritmos, utilizando conceitos da teoria da percola??o, que analisam as condi??es de conectividade em modelos geol?gicos elaborados para
reservat?rios de petr?leo. A partir de seus par?metros petrof?sicos, tais como: permeabilidade, porosidade, transmissibilidade e outros, gerados por qualquer processo estat?stico, ? poss?vel conhecer qual a por??o do modelo onde ocorre o maior n?mero de c?lulas conectadas, quais s?o os po?os que est?o conectados entre si e qual o caminho m?nimo entre injetores e produtores. Permitindo, assim, classificar o reservat?rio segundo os par?metros petrof?sicos modelados.
Podendo determinar, tamb?m, qual a porcentagem do reservat?rio a que cada po?o est? conectado. De uma forma geral, as regi?es conectadas e os respectivos m?nimos e/ou m?ximos da ocorr?ncia dos par?metros petrof?sicos estudados, constituem uma boa forma de caracterizar
volumetricamente um reservat?rio. Os algoritmos permitem, ent?o, otimizar o posicionamento de loca??es de po?os oferecendo uma vis?o antecipada das condi??es gerais da conectividade de um determinado modelo. A inten??o n?o ? avaliar modelos geol?gicos, mas mostrar como as jazidas s?o interpretadas, como suas caracter?sticas petrof?sicas se distribuem espacialmente e como as conex?es entre as diversas partes do sistema s?o resolvidas, mostrando seus caminhos cr?ticos e backbones . A execu??o desses algoritmos permite que as caracter?sticas relativas ? conectividade do modelo sejam conhecidas mesmo antes de se iniciar o trabalho de simula??o de fluxo do reservat?rio