136 research outputs found
Meat intake among adults: a population-based study in the city of Campinas, Brazil. A cross-sectional study
Hypericum sp.: essential oil composition and biological activities
Phytochemical composition of Hypericum
genus has been investigated for many years. In the recent past, studies on the essential oils (EO) of this genus have been progressing and many of them have reported interesting biological activities. Variations in the EO composition of Hypericum species influenced
by seasonal variation, geographic distribution, phenological cycle and type of the organ in which EO are produced and/or accumulated have also been reported. Although many reviews attributed to the characterization
as well as biological activities of H. perforatum
crude extracts have been published, no review has been published on the EO composition and biological activities of Hypericum species until recently (Crockett
in Nat Prod Commun 5(9):1493–1506, 2010;
Bertoli et al. in Global Sci Books 5:29–47, 2011). In this article, we summarize and update information regarding the composition and biological activities of Hypericum species EO. Based on experimental work carried out in our laboratory we also mention possible biotechnology approaches envisaging EO improvement of some species of the genus.Fundação para a Ciência e a Tecnologia (FCT) - project PTDC/AGR AAM/70418/2006, SFRH/BD/
13283/2003
Planejamento de cardápios para escolas públicas municipais: reflexão e ilustração desse processo em duas capitais brasileiras
Transtornos mentais comuns entre estudantes de medicina da Universidade Federal de Sergipe: estudo transversal
Objetivo: Estimar a prevalência de transtorno mental comum e fatores associados entre estudantes de Medicina da Universidade Federal de Sergipe. Método: Estudo transversal com 473 dos 512 matriculados em 2006, aplicando o Self Reporting Questionnaire-20 e um questionário estruturado sobre características sociodemográficas, processo ensino-aprendizagem e vivências psicoemocionais. Os calouros foram excluídos após comparação inicial com os alunos do 2° ao 12° períodos. Análise estatística por regressão logística múltipla, após estatística descritiva e cálculo das ORs simples e ajustadas. Resultados: A prevalência de transtorno mental comum geral foi de 40% (n = 473), mas com a retirada dos calouros, aumentou para 42,5% (n = 433) entre os alunos do 2°
ao 12° semestre, sendo maior entre aqueles que não acreditavam ter adquirido habilidades para se tornarem bons médicos (OR = 2,82), que se sentiam pouco confortáveis com as atividades do curso (OR = 3,75), que se consideravam emocionalmente tensos (OR = 2,14), nos que não se consideravam felizes
(OR = 2,85), nos que achavam que o curso era menos do que esperavam (OR = 1,64) e nos que tiveram diagnóstico prévio de transtorno mental feito por psiquiatra (OR = 3,78). Conclusão: Os resultados sugerem a necessidade de mudanças no processo ensino-aprendizagem, bem como estruturação de
programas para cuidar da saúde mental dos estudantes. _________________________________________________________________________________________ ABSTRACT: Objective: Estimate the prevalence of common mental disorder and its associated factors among medical students of the Universidade Federal de Sergipe. Method: A cross-sectional study was carried out,
applying Self Reporting Questionnaire-20 to 473 students from the 512 medical students enrolled in 2006 and compared with compared with a structured questionnaire by the authors containing information on the
socio-demographic characteristics, the teaching–learning process and the
psycho-emotional experiences of the students. Freshmen were excluded after initial comparison with the students already exposed to the medical course. Statistical analysis by multiple logistic regression after calculating simple and adjusted odds ratio (OR). Results: The general prevalence of common mental disorder was 40% (n = 473); after exclusion of the freshmen it increased to 42.5% among students from the 2nd to the 12th semester.It was higher among those who did not have faith in their acquisition of the skills needed to become a good doctor (OR = 2.82), who felt less comfortable about course activities (OR = 3.75), who considered themselves emotionally stressed (OR = 2.14), among those who did not consider themselves happy (OR = 2.85), who believed that the course did not match their expectations
(OR = 1.64) and those who had a prior diagnosis of mental disorder by a psychiatrist (OR = 3.78). Conclusion: The results suggest the necessity of changes to the teaching-learning process and the establishment of a preventive mental health program for medical students
Prevalência e fatores associados às geo-helmintíases em crianças residentes em municípios com baixo IDH no Norte e Nordeste brasileiros
Polarimetry of binary systems: polars, magnetic CVs, XRBs
Polarimetry provides key physical information on the properties of
interacting binary systems, sometimes difficult to obtain by any other type of
observation. Indeed, radiation processes such as scattering by free electrons
in the hot plasma above accretion discs, cyclotron emission by mildly
relativistic electrons in the accretion shocks on the surface of highly
magnetic white dwarfs and the optically thin synchrotron emission from jets can
be observed. In this review, I will illustrate how optical/near-infrared
polarimetry allows one to estimate magnetic field strengths and map the
accretion zones in magnetic Cataclysmic Variables as well as determine the
location and nature of jets and ejection events in X-ray binaries.Comment: 26 pages, 16 figures; to be published in Astrophysics and Space
Science Library 460, Astronomical Polarisation from the Infrared to Gamma
Rays, Editors: Mignani, R., Shearer, A., S{\l}owikowska, A., Zane,
Condições de trabalho e transtornos mentais comuns em trabalhadores da rede básica de saúde de Botucatu (SP)
Padrões de consumo de álcool e fatores associados entre adultos usuários de serviço de atenção básica do Rio de Janeiro, RJ, Brasil
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