Identification of magnetosonic modes in Galactic turbulence with synchrotron polarization

The equipartition of magnetic and thermal energy in the interstellar medium (ISM) indicates the magneto-hydrodynamic nature of the interstellar turbulence, which can be decomposed into three wave modes: Alfv\'en, fast and slow magnetosonic modes\cite{Herlofson50,LG01,CL03}. Even for studies performed in the case of subsonic turbulence, the magnetosonic modes have been revealed to be more effective than the Alfv\'enic modes for processes such as cosmic ray (CR) transport and acceleration \cite{YL04,Lynn14}. The multiphase nature of ISM and diversity of driving mechanisms give rise to spatial variation of turbulence properties. Nevertheless, the employed model of magneto-hydrodynamic turbulence is often oversimplified being assumed to be only Alfv\'enic or even hydrodynamic due to a lack of observational evidence. Here we report the employment of our novel method, the signature from polarization analysis (SPA), on unveiling the plasma modes in interstellar turbulence. Its application leads to the first discovery of magnetosonic modes in the Cygnus X region. It is found that the magnetosonic modes overlap to a high degree with Fermi cocoon, consistent with theoretical expectations. Moreover, through comparison with the spectrum at other wavelengths, the plasma modes of turbulence are unveiled in active star formation zones. The SPA casts light on the plasma modes composition of the Galactic turbulence, and marks the onset of a new era in the study of interstellar turbulence and accordingly our understandings of relevant processes including cosmic ray transport and star formation

Challenges of enterpreneurial social responsabilities relating to community empowerment : case study : favela Jardim Colombo, in the city of Sao Paulo

Orientador: Salvador Antonio Mireles SandovalDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de EducaçãoResumo: Com a adoção de um novo modelo de enfrentamento das chamadas questões sociais, o qual amplia o espectro de atuação do setor privado, vários países, dentre eles o Brasil, criaram um espaço para uma nova conformação nas relações entre o público e o privado na área social. Dentro dessa esfera pública ampliada, as ações desenvolvidas por agentes privados na área social enquadram-se dentro da chamada Responsabilidade Social Empresarial, constituindo-se muitas vezes uma nova forma de proteção social paralela àquela oferecida pelo Estado. Muitas empresas, através especialmente de ONGs, atuam em comunidades carentes, claramente substituindo o Estado na oferta de serviços sociais. Dentro deste quadro, a presente dissertação propõe analisar se as comunidades de fato estão conseguindo apropriar-se do conhecimento e das técnicas produzidas durante esse processo, gerando o chamado empowerment comunitário, e também se esse empoderamento é parte constituinte dos projetos das entidades que atuam nessas comunidadesAbstract: By embracing a new model to face so-called social issues that expands the private segment operational scope, several countries, like Brazil, created a space for new conformation between the public and the private in the social area. In such expanded public sphere, social actions developed by private agents adjust to the so-called Entrepreneurial Social Responsibility, many times establishing a new way for social protection side-by-side to that offered by the State. Many corporations work with needy communities specially via NGO¿s, clearly replacing State¿s offering of social services. Within such scenario, this treatise proposes to analyse if the communities are in fact able to appropriate the know-how and techniques produced during this process ¿generating the said community empowerment¿ and if such empowerment is part of the projects such corporations developed along these communitiesMestradoCiencias Sociais na EducaçãoMestre em Educaçã

Identification of MHD compressible modes in interstellar plasma with synchrotron emission polarization

We provide a procedure for identification of dominating compressible and Alfvenic MHD modes or isotropic turbulence in synchrotron emission polarization maps of Galactic objects. The results for the region of North Galactic Pole, Orion molecular cloud complex and the star-forming complex Cygnus X are presented

Runaway stars as cosmic ray injectors inside molecular clouds

Giant molecular clouds (GMCs) are a new population of gamma-ray sources, being the target of cosmic rays (CRs) -- locally accelerated or not --. These clouds host very young stellar clusters where massive star formation takes place. Eventually, some of the stars are ejected from the clusters, becoming runaway stars. These stars move supersonically through the cloud and develop bowshocks where particles can be accelerated up to relativistic energies. As a result, the bowshocks present non-thermal emission, and inject relativistic protons in the cloud. These protons diffuse in the GMC interacting with the matter. We present a model for the non-thermal radiation generated by protons and secondary pairs accelerated in the bowshocks of massive runaways stars within young GMCs. We solve the transport equation for primary protons and secondary pairs as the stars move through the cloud. We present non-thermal emissivity maps in radio and in gamma rays as a function of time. We obtain X-ray luminosities of the order $\sim$ ${ 10^{32}}$ erg~s$^{-1}$ and gamma-ray luminosities $\sim$ $10^{34}$ erg~s$^{-1}$. We conclude that, under some assumptions, relativistic protons from massive runaway stars interacting with matter in GMCs give rise to extended non-thermal sources.Comment: 16 pages, 10 figures, accepted for publication in MNRA

PROGRAMA DE MONITORIA GERAL: PRÁTICA PEDAGÓGICA EM MATEMÁTICA II COM ABORDAGEM DIDÁTICA DURANTE O PERÍODO LETIVO EMERGENCIAL DA UNIFESSPA

Neste trabalho, apresentamos as vivências ocorridas durante o Programa de Monitoria Geral dadisciplina de Prática Pedagógica em Matemática II (PPMII), ofertado durante o Período Letivo Emergencial(PLE), destinado aos acadêmicos matriculados na turma 2018 do Curso de Licenciatura em Matemática doInstituto de Engenharia do Araguaia (IEA). A monitoria de PPMII objetivou-se em oferecer apoio aos discentesmatriculados na disciplina descrita, possibilitando a redução do índice de evasão em áreas correlatas àEducação Matemática, onde os alunos receberam suporte do professor e da monitora no formato virtual comrelação aos diferentes tópicos apresentados na ementa do componente curricular. Ao acompanhar oquantitativo de 51 horas da disciplina, a monitoria precisou desenvolver cinco procedimentos metodológicoscomo por exemplo levantamento bibliográfico com tendências do componente curricular. Em suma, osresultados evidenciaram uma maior comunicação do professor coordenador do projeto com a monitora e osdiscentes matriculados. Além de ter alcançado 100% de aproveitamento dos conceitos, sendo que não houvenenhum índice de reprovados. Por fim, os estudos realizados durante a monitoria favoreceram a troca deconhecimentos e experiências, além de ter contribuído na formação inicial dos futuros professores queensinarão Matemática

Reactor kinetic formulation using the finite element method

This research has the objective of solving the spatial Kinetic equations for two energy groups using the finite element method. In the methodology, was applied the direct method, such that matrix equations coefficients from spatial discretization was generated by finite element method. The formulation of the time-dependent problem was obtained by analytical integration of precursor concentration equation and using the Euler implicit scheme in the dynamic diffusion problem. A 2D example of a reactor static diffusion problem was solved using a linear triangular finite element. This solution was compared with the numerical benchmark solution, found in the literature, and the numerical results calculated by the finite difference methods. This comparison shows the capacity of the finite element method to obtain a precise solution

The difficult management of patients with respiratory segmental dystonia

Respiratory dystonia is a rare and difficult to diagnose disorder, that causes breathing restriction of various degrees. The objective of the study is to report the case of a patient with respiratory dystonia involving the larynx and the pharynx and its evolution concerning spasms intensity and control. CASE REPORT: A 24 year-old-man has been followed for 5 years. The diagnosis was made by means of nasofibroscopy and electromyography. Treatment was carried out with laryngeal and pharyngeal Botulin toxin injections, as it became necessary for symptoms control. CONCLUSION: The difficult management can be secondary to the lack of knowledge on the etiology and physiopathology of the impairment, and because of the limitations in the treatment of associated respiratory symptoms.A forma respiratória da distonia laríngea é rara, de difícil diagnóstico e provoca restrição respiratória de graus variados. O objetivo deste trabalho é apresentar um caso de distonia respiratória envolvendo laringe e faringe e sua evolução em relação à intensidade dos espasmos e seu controle. ESTUDO DE CASO: Paciente de 24 anos, sexo masculino, acompanhado por 5 anos: diagnóstico por nasofibroscopia e eletromiografia e tratamento com toxina botulínica conforme necessidade de controle dos sintomas. CONCLUSÃO: O difícil manejo se deve ao fato do desconhecimento da etiologia e a pouca opção de tratamento, bem como do envolvimento da função respiratória.Universidade Federal de São Paulo (UNIFESP) Escola Paulista de MedicinaPontifícia Universidade Católica de São Paulo Escola Paulista de MedicinaEscola Paulista de Medicina Departamento de Oftalmo/OtorrinolaringologiaEscola Paulista de Medicina Departamento de Otorrinolaringologia e Distúrbios da Comunicação HumanaFundação para o Estudo e Tratamento das Deformidades Crânio-FaciaisUNIFESP CEVUniversidade Federal de São Paulo (UNIFESP) EPM Departamento de Otorrinolaringologia e Cirurgia de Cabeça e PescoçoUNIFESP-EPM Departamento de Otorrinolaringologia e Cirurgia de Cabeça e PescoçoUNIFESP, EPMPontifícia Universidade Católica de São Paulo Escola Paulista de MedicinaEscola Paulista de Medicina Depto. de Oftalmo/OtorrinolaringologiaEscola Paulista de Medicina Depto. de Otorrinolaringologia e Distúrbios da Comunicação HumanaUNIFESP, CEVUNIFESP, EPM, Depto. de Otorrinolaringologia e Cirurgia de Cabeça e PescoçoUNIFESP, EPM Depto. de Otorrinolaringologia e Cirurgia de Cabeça e PescoçoSciEL