Generalized Flow-Box property for singular foliations

We introduce a notion of generalized Flow-Box property valid for general singular distributions and sub-varieties (based on a dynamical interpretation). Just as in the usual Flow-Box Theorem, we characterize geometrical and algebraic conditions of (quasi) transversality in order for an analytic sub-variety $X$ (not necessarily regular) to be a section of a line foliation. We also discuss the case of more general foliations. This study is originally motivated by a question of Jean-Francois Mattei (concerning the strengthening of a Theorem of Mattei) about the existence of local slices for a (non-compact) Lie group action.Comment: Changes in Section

Regularization of Discontinuous Foliations: Blowing up and Sliding Conditions via Fenichel Theory

We study the regularization of an oriented 1-foliation $\mathcal{F}$ on $M \setminus \Sigma$ where $M$ is a smooth manifold and $\Sigma \subset M$ is a closed subset, which can be interpreted as the discontinuity locus of $\mathcal{F}$. In the spirit of Filippov's work, we define a sliding and sewing dynamics on the discontinuity locus $\Sigma$ as some sort of limit of the dynamics of a nearby smooth 1-foliation and obtain conditions to identify whether a point belongs to the sliding or sewing regions.Comment: 32 page

Convergence to Hartree dynamics for interacting bosons

openThe main goal of the present thesis is to derive a rigorous estimate for the convergence to Hartree dynamics for interacting bosons in the low effective temperature limit. The 2-body interaction potential is chosen in the Hardy class and we allow our potential to have negative values, in order to model also attractive forces between particles. The estimate is obtained working on proper functional norms on the space of square-integrable functions, endowed with a thermal gaussian measure μ that concentrates around the ground state in the low effective temperature limit. We write the normal mode decomposition of the quantum field operators, and then truncate it by introducing an UV cutoff Λ. The cutoff is introduced to switch from the infinitely-many coupled ODEs describing the evolution of the annihilation operator to a finite ODEs system. The dynamics of the system with the cutoff is studied on the Bargmann-Fock space, a subspace of the bosonic Fock space in the second quantization formalism. We use coherent state expectation values to obtain scalar equations starting from operatorial ones. More precisely, coherent states are introduced algebraically through the action of the Weyl-Heisenberg translation operator; then the Bargmann transform and the corresponding Bargmann representation are introduced. We use the Bargmann representation of the canonical coherent states to compute the Wick symbol of the operators (i.e. the coherent expectation value). Wick symbols are also used to define the μ-norm for operators. Finally, a bound on the distance (through the above mentioned norms) between the regularized and the full quantum dynamics is provided, and the bound dependence on cutoff, effective temperature and time is explicitly shown. Remarkably, we find linear time dependence for the bound.The main goal of the present thesis is to derive a rigorous estimate for the convergence to Hartree dynamics for interacting bosons in the low effective temperature limit. The 2-body interaction potential is chosen in the Hardy class and we allow our potential to have negative values, in order to model also attractive forces between particles. The estimate is obtained working on proper functional norms on the space of square-integrable functions, endowed with a thermal gaussian measure μ that concentrates around the ground state in the low effective temperature limit. We write the normal mode decomposition of the quantum field operators, and then truncate it by introducing an UV cutoff Λ. The cutoff is introduced to switch from the infinitely-many coupled ODEs describing the evolution of the annihilation operator to a finite ODEs system. The dynamics of the system with the cutoff is studied on the Bargmann-Fock space, a subspace of the bosonic Fock space in the second quantization formalism. We use coherent state expectation values to obtain scalar equations starting from operatorial ones. More precisely, coherent states are introduced algebraically through the action of the Weyl-Heisenberg translation operator; then the Bargmann transform and the corresponding Bargmann representation are introduced. We use the Bargmann representation of the canonical coherent states to compute the Wick symbol of the operators (i.e. the coherent expectation value). Wick symbols are also used to define the μ-norm for operators. Finally, a bound on the distance (through the above mentioned norms) between the regularized and the full quantum dynamics is provided, and the bound dependence on cutoff, effective temperature and time is explicitly shown. Remarkably, we find linear time dependence for the bound

ECOFEMINISMO, O MOVIMENTO EM DEFESA DA NATUREZA E DAS MULHERES

Palavras-chave: Ecofeminismo; Movimento de mulheres; Patriarcado; Proteção ao Meio Ambiente.Keywords: Ecofeminism; Women's movement; Patriarchy; Environmental Protection

Prolapso Uretral Em Cão Da Raça American Bully: Relato de caso

TCC (graduação) - Universidade Federal de Santa Catarina, Campus Curitibanos, Medicina Veterinária.O prolapso uretral é uma afecção observada em cães machos jovens, sendo considerada de rara ocorrência, com maior número de casos em raças braquicefálicas. A fisiopatologia ainda não é completamente esclarecida, e pode estar associada com fatores tais como, predisposição genética, infecção no trato geniturinário, masturbação e excitação sexual excessivas, traumatismo, cálculos uretrais, desenvolvimento anatômico anormal, influências hormonais e aumento da pressão intra-abdominal. O relato de caso envolve a raça American Bully e a técnica cirúrgica empregada, em conjunto com a castração, proporcionaram a correção do problema, sendo de fácil execução, eficiente e com baixo risco de recidiva.Urethral prolapse is a condition observed in young male dogs, considered a rare occurrence, with a greater number of cases in brachycephalic breeds. The pathophysiology is still not fully understood and may be associated with factors such as genetic predisposition, untreated genital infection, excessive masturbation and sexual arousal, trauma, urethral stones, abnormal anatomical development, hormonal influences, and increased intra-abdominal pressure. The case report involving the American Bully breed, the surgical technique used, combined with castration, favors the adequate correction of the problem, being easy to perform, efficient and with a low risk of recurrence

As políticas de reaparelhamento da FAB : associações entre Política Externa Brasileira e Forças Armadas

Dissertação (mestrado)—Universidade de Brasília, Instituto de Relações Internacionais, Programa de Pós-Graduação em Relações Internacionais, 2013.A presente dissertação versa sobre a relação entre política externa e poder aéreo. Valendo-se do estudo dos casos dos processos de reaparelhamento da Força Aérea Brasileira, busca demonstrar que existe uma estreita relação entre os processos de escolha das compras e os rumos da Política Externa Brasileira. Isso se dá à luz da teoria de securitização da Escola de Copenhague, ao entender-se o poder aéreo como uma força fundamentalmente ofensiva e estratégica, cujo incremento implicaria em processos de securitização. Por meio de análise documental disponível, acerca de três períodos históricos distintos, busca-se confirmar a hipótese de que existe uma direção política do governo civil acima de critérios específicos da Força para as escolhas, e o papel de instâncias como o Itamaraty e Forças Armadas como agentes securitizantes. Conclui-se que, a despeito de limitações técnicas que em grande parte forçam tais processos, os reaparelhamentos se enquadram de modo singular em processos alheios à esfera militar, envolvendo aspectos de política externa em seu desenvolvimento. ______________________________________________________________________________ ABSTRACTThis dissertation focuses on the relation between foreign policy and airpower. Drawing on the study of the modernization processes of the Brazilian Air Force, seeks to demonstrate that there is a close relation between the choosing processes of the purchases and the course of Brazilian Foreign Policy. The work is done based on Securitization theory of the Copenhagen School, considering airpower as a fundamentally offensive and strategic force, whose increment would imply in securitization processes. Through documentary analysis available on three distinct historical periods, seeks to confirm the hypothesis that there is a political leadership of the civilian government for the choices, over specific criteria of the Air Force, and the role of bodies such as the Foreign Ministry and the Armed Forces as securitizating agents. Concludes that, despite the technical limitations which largely enforce such processes, these modernizations fit singularly in processes unrelated to the military sphere, involving aspects of foreign policy in its development

A força dos laços: um estudo em duas organizações ambientalistas sem fins lucrativos de Florianópolis

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Sócio-Econômico. Programa de Pós-Graduação em AdministraçãoEste estudo apresenta as implicações dos laços da rede social de duas organizações ambientalistas sem fins lucrativos de Florianópolis na gestão de suas atividades. As organizações (Instituto Ilhas do Brasil e Instituto Ekko Brasil) foram analisadas por meio dos laços de sua rede social e por meio de sua gestão (tendo em vista os objetivos organizacionais e tomada de decisão). A pesquisa caracteriza-se como predominantemente qualitativa do tipo estudo de casos múltiplos. A coleta de dados foi realizada através da análise de documentos, observação e entrevistas semi estruturadas aplicadas junto a cada informante chave, selecionados de acordo com sua representatividade em relação ao objeto do estudo, em cada uma das organizações pesquisadas. Para análise dos dados foi utilizada a técnica de análise de conteúdo e análise documental. Diante dos dados analisados identificou-se que as duas organizações estudadas apresentam uma rede com 18 laços, sendo esses caracterizados como fortes ou fracos. Uma das organizações, por estar mais envolvida ao protagonismo social, apresenta laços fortes com todos os atores que são beneficiados por suas ações, já a outra organização por ter como foco central a conservação das espécies apresenta, como os laços mais fortes de sua rede, atores que podem garantir sua sobrevivência financeira. Diante da análise da gestão observou-se que as organizações estudadas apresentam mais semelhanças do que discordâncias quando se trata dos objetivos organizacionais, entretanto o mesmo não ocorre quando se analisa a gestão por meio da tomada de decisão. Tendo em vista o processo de tomada de decisão, em uma organização todo esse processo se dá de modo coletivo, já na outra está mais concentrado na mão de dos membros da organização, sendo essa a principal discordância. Quanto a possíveis impactos dos laços na gestão das organizações estudadas observou-se que todos os laços da rede geram de alguma forma impactos na gestão. Entretanto, os atores que realizam capacitações nas organizações e os atores que financiam os projetos por meio de editais vão apresentar impactos significativos na gestão independente da força do laço.This study presents the implications of social network ties in the management of two nonprofit environmental organizations in Florianópolis. Organizations (Institute Ilhas and Institute Ekko Brazil) were analyzed throughout the ties of their social network and management aspects (regarding the organizational goals and decision making). The research is characterized as predominantly qualitative-type study of multiple cases. Data was gathered through document analysis, observation and semi-structured interviews applied to each main informant interviewed, selected according to their relevance to the object of study in each of the organizations surveyed. On data analysis, we used the technique of content analysis and document analysis. Our analysis identified that the two organizations studied have a network with 18 ties, these being characterized as strong or weak. One of the organizations which is more inclined to social leadership, has strong ties with all the actors whom are benefited by its actions, while the other organization, having its central focus on the conservation of species, presents, as being the strongest bonds of its network, actors who can ensure their financial survival. Regarding management aspects in focus on this work, we noted that the organizations studied have more similarities than discrepancies when it comes to organizational goals, however this is not true when looking to management decision-making. While in one organization this process occurs in a collaborative fashion, the other one is handled by members of the organization, that being the main difference between them. Regarding possible impacts by the ties in the management of the organizations studied, it was observed that all links of the network somehow generate impacts on management. However, the actors who perform inside coaching in the organizations and actors that finance the projects through public notices will have significantly more impact on the organization management, regardless of the strength of the tie