Stress and university teaching in the health sector

Este estudo teve como objetivo investigar as manifestações clínicas de stress e os fatores estressantes no trabalho de docentes em saúde de uma universidade pública do norte do Brasil. Foram aplicados os instrumentos: Inventário de Sintomas de Stress para Adultos de Lipp e Questionário sobre percepção do próprio stress. Verificou-se que 24,2% dos participantes apresentaram manifestações clínicas de stress, dentre os quais 95,4% encontravam-se na fase de resistência. Em relação à sintomatologia do stress, verificou-se que 63,6% apresentavam sintomas físicos, e 36,4%, sintomas psicológicos. Quanto à percepção do próprio stress, do stress no trabalho e nas condições de trabalho, os docentes avaliaram-se como muito estressados. Os resultados referentes às manifestações clínicas de stress estiveram associados aos docentes com filhos (p=0,005) e que se percebem como muito estressados (p<0,05). Assim, destaca-se a necessidade de atenção e cuidado a essa parcela de docentes, que pareceram enfrentar dificuldades no ambiente de trabalho.The purpose of this study was to investigate the clinical manifestations of stress and stress factors in health department lecturers at a public university in Northern Brazil. The following instruments were used: Lipp's Stress Symptoms Inventory for Adults and a Questionnaire on the self-perception of stress. It was found that 24.2% of participants had clinical signs of stress and that 95.4% were in the resistance stage. As regards the symptoms of stress, it was found that 63.6% had physical symptoms while 36.4% presented psychological symptoms. As for the self-perception of stress, stress at work and working conditions, the teaching staff evaluated themselves as highly stressed. The results related to clinical manifestations of stress were associated with teaching staff with children (p=0.005), who perceive themselves as highly stressed (p<0.05). Thus, there is a need for care and attention for this population of university lecturers who appear to be facing some difficulties in the workplace

Ensino de estatística: o estudo de conceitos potencializado pelo software RStudio

Acompanha: Mapas e contornos: caminhos para o ensino de estatística no RStudio.The use of digital media is a reality in all social media, and should not be different in education. This paper presents a study regarding the use of technology to assist in statistical content, since such content is superficially addressed in the school curriculum. To modify and favor learning, the RStudio software was used. The aim of this paper is to understand the effect of RStudio software applied to statistical content and to analyze the acceptance of the program by students. The research involved 14 elementary school students from a private school in Londrina. The methodology adopted was qualitative and had a bibliographic research and a field research carried out within the school, object of study. The results indicate that the technologies can assist the students' teaching and learning process regarding the concepts of Statistics, allowing the manipulation of the data and the calculations to be facilitated. In conclusion, the results obtained showed that the use of the software provided significant improvements in student learning. However, they also point to the need for a greater number of researches that address the theme, especially regarding teacher education.A utilização das mídias digitais é uma realidade em todos os meios sociais, e não deveria ser diferente na Educação. Este trabalho apresenta um estudo referente ao uso da tecnologia para auxiliar nos conteúdos de estatística, uma vez, que tais conteúdos são abordados de forma superficial no currículo escolar. Para modificar e favorecer o aprendizado foi utilizado o software RStudio. O objetivo deste trabalho é compreender o efeito do software RStudio aplicado aos conteúdos de estatística e analisar a aceitação do programa por parte dos alunos. A pesquisa envolveu 14 alunos do Ensino Fundamental II de uma escola da rede particular do município de Londrina. A metodologia adotada foi de caráter qualitativo e contou com uma pesquisa bibliográfica e uma pesquisa de campo realizada no âmbito da escola, objeto do estudo. Os resultados indicam que as tecnologias podem auxiliar o processo de ensino e aprendizagem dos alunos referente aos conceitos de Estatística, permitindo que a manipulação dos dados e os cálculos sejam facilitados. Concluindo, os resultados obtidos mostraram que a utilização do software proporcionou melhorias significativas na aprendizagem dos alunos. Entretanto, apontam também para a necessidade de um maior número de pesquisas que abordem a temática principalmente no que concerne à formação de professores

RAZÃO TGL/HDL COMO PREDITOR DA DEFICIÊNCIA DE TESTOSTERONA EM HOMENS IDOSOS

O hipogonadismo masculino é caracterizado por baixa testosterona sérica e baixos níveis de espermatozóides, acompanhados por sinais e sintomas clínicos que podem ser divididos em dois grupos. O primeiro grupo inclui desenvolvimento sexual incompleto ou retardado, redução da libido, disfunção erétil, ginecomastia, diminuição de pelos axilares, faciais e pubianos, testículos pequenos, infertilidade e osteopenia

Pregled primjene eteričnih ulja i biljnih ekstrakata kao konzervansa i prirodnih antioksidansa u mesu i mesnim prerađevinama

The meat and meat product industry has evolved according to the needs of the market. Consumers are increasingly seeking quality in food. Thus, the concern regarding the excessive use of additives such as preservatives and antioxidants has driven research towards natural, healthy and safe substitutes. Essential oils and plant extracts have been shown to be a good option for resolving this problem. They are completely natural with biological activity, which mainly includes prevention of oxidation and the proliferation of microorganisms, thus arousing the interest of the industry and consumers. This review will present studies published in the last five years regarding the potential of essential oils and plant extracts to act as preservatives and antioxidants in meat and meat products. The forms of application, innovations in the area, alternatives to the incorporation of essential oils and extracts in meat products, effects caused in food, and limitations of applications will be detailed and discussed.Proizvodnja mesa i mesnih prerađevina se prilagođava potrebama tržišta. Potrošači sve više traže da hrana bude kvalitetna. Stoga je zabrinutost zbog pretjerane uporabe aditiva, kao što su konzervansi i antioksidansi, potaknula istraživanja o njihovim prirodnim, zdravim i sigurnim zamjenama. Eterična ulja i biljni ekstrakti pokazali su se kao dobro rješenje tog problema. Potpuno su prirodni, a njihova biološka aktivnost se uglavnom zasniva na sprečavanju oksidacijskog oštećenja i rasta mikroorganizama, zbog čega pobuđuju interes prehrambene industrije i potrošača. Ovaj rad donosi pregled istraživanja o mogućnostima primjene eteričnih ulja i biljnih ekstrakata kao konzervansa i antioksidansa u mesu i mesnim prerađevinama, objavljenih u posljednjih pet godina. Detaljno su opisani i raspravljeni načini primjene eteričnih ulja i biiljnih ekstrakata u mesnim proizvodima, inovacije u području, alternativna rješenja, učinci na hranu i ograničenja njihove primjene

Inability of 7,8 – Dihydroxy-4- Methylcoumarin antioxidant activity, to prolong longevity and to protect against stress in Caenorhabditis Elegans worms

Despite an increase in life expectancy, it is known that this factor is not necessarily accompanied by a better quality of life, which reflects in longevity. Aspects related to metabolic stress to which cells are subjected can modulate this process, which can lead to various pathologies. Coumarins are secondary metabolites found in several plants, such as guaco, and are part of the polyphenol family capable of producing up to 1300 derivatives, with potential effects against metabolic stress, in addition to being used in the cosmetics industry with the objective of improving fragrance of products. Therefore, it seems necessary to seek to elucidate molecular mechanisms that can regulate this aging process, which can be associated with the gradual loss of physiological functions of cells and tissues, increasing the number of cells in senescence that may be related to increased oxidative stress. PURPOSE: the aim of this study was to identify the influence of the use of the coumarin synthetic compound 7,8-Dihydroxy-4-methylcoumarin (DHMC) on longevity and resistance to different types of stress in vivo. METHODS: free radical scavenging (DPPH) analyzes were performed for the compound, longevity, and stress tests (H2O2, NaCl, Heat) for C. elegans worms. RESULTS: in the first analysis, the compound showed 92% of antioxidant activity already in small concentrations (25ug/ml) through DPPH analysis. In the following tests DHMC did not show antibacterial responses against Escherichia coli, and Caenorhabditis elegans worms did not show stress reduction or significant improvement in longevity with the use of the compound. CONCLUSION: therefore, the DHMC compound expresses a high antioxidant activity and presents several study potentials. However, it has no biological effects in protecting against stress or contributing to longevity in C. elegans worm

Sistema de informações seletivas especializadas (INFO-SEL&S)

Apresenta a experiência do Serviço Federal de Processamento de Dados (SERPRO) na implantação do sistema de automação do acervo e serviços de sua rede de bibliotecas. Esclarece os subsistemas que compõem o software utilizado - Sistema de Informações Bibliográficas (SIBIL) - e as bases de dados bibliográficos

Cytogenetic studies in Trachymyrmex holmgreni Wheeler, 1925 (Formicidae: Myrmicinae) by conventional and molecular methods

Over the past several decades, ant cytogenetic studies have focused on chromosome number and morphology; however, recently, additional information concerning heterochromatin composition and 45S rDNA location has become accessible. The fungus-growing ants are a peculiar ant group that cultivates fungus for food, and Trachymyrmex is suspected to be the sister group of leafcutter ants. Cytogenetic data are so far available for sixn Trachymyrmex species. The present study aimed to increase the knowledge about Trachymyrmex cytogenetics by the chromosomal characterization of Trachymyrmex holmgreni including the karyotyping, fluorochromes staining, 18S rDNA, and microsatellite (GA)15 fluorescence in situ hybridization (FISH). Karyotyped samples from four ant colonies showed 2n = 20 metacentric chromosomes. Centromeric heterochromatin rich in GC base pairs was detected in all chromosomes. FISH revealed the presence of rDNA clusters on the fourth chromosome pair, and an intense spreading of the microsatellite (GA)15 including exclusively euchromatic areas of the chromosomes. The GC-rich heterochromatin observed in different ant species may have a common origin and, thus, phylogenetic implication that needs to be further investigated. To the best of our knowledge, this study is the first report of the use of chromosomal physical location of repetitive DNA sequences by means of microsatellite probes in Formicidae