ABSTRACT Introduction: The elderly population is increasingly benefiting from recent technological advances. In this scenario, geolocation-based dating applications provide a viable alternative for finding partners in a practical and timely manner, but may be accompanied by certain risk behaviors for HIV infection. Although there are considerable number of users over 50 on these applications, no studies have addressed this problem. The aim of the present study was to analyze factors of vulnerability to HIV/Aids among the population of men who have sex with men (MSM) age 50 years or older who use dating apps. Methods: This was a cross-sectional, population-survey-based, analytical study, conducted exclusively online with a sample of 412 MSM. The data was collected from the following apps: Grindr®, Hornet®, Scruff® and Daddy Hunter®. Results: Factors associated with a higher chance of having HIV were: sexual relations with an HIV-infected partner (ORa = 5.53; 95%CI = 2.23-13.73); chemsex (ORa = 3.97; 95%CI = 1.72-8.92); and, above all, having an HIV-infected partner (ORa = 8.02; 95%CI = 2.01-32.01). The belief that apps increase protection against sexually transmitted infections (ORa = 0.43; 95%CI = 0.19-0.95) and not being familiar with post-exposure prophylaxis (ORa = 0.43; 95%CI = 0.19-0.95) were associated with decreased chances of having HIV. Conclusions: We highlight some important factors that structure the vulnerability of the MSM surveyed in relation to HIV infection. The findings should be used to customize care for this population, which could bring them in more for health care services.

Essential oils (EO) are volatile liquids responsible for the aroma of plants. Pterodon polygalaeflorus seeds have received widespread use in folk medicine for the treatment of inflammatory diseases. For this reason and because Pterodon polygalaeflorus seeds have great EO content, which is frequently pharmacologically active, the present study aimed to evaluate the antinociceptive effect of EO from Pterodon polygalaeflorus (EOPPgfl) and its acute toxic effects. The EEOPPgfl sample, which was extracted by steam distillation of the seeds, had a yield of 2.4% of the seeds weight and had, as major constituents, beta-elemene (48.19%), trans-caryophyllene (19.51%), and epi-bicyclosesquiphellandrene (12.24%). The EOPPgfl sample showed mild acute toxicity and its calculated median lethal dose (LD50) was 3.38 g/kg. EOPPgfl (20–60 mg/kg) showed antinociceptive activity as evidenced by several tests and inhibited writhing induced by acetic acid. The maximum effect was obtained with the 30 mg/kg dose and at 60 min after its administration. EOPPgfl also decreased formalin-induced nociception, as verified by the inhibition of the first and second phase of the formalin test. At 30 mg/kg, EOPPgfl also decreased thermally stimulated nociception. Nociception may be related to inflammatory and antiedematogenic activity and at doses ranging 10–100 mg/kg, EOPPgfl blocked dextran- and carrageenan-induced edema. The results demonstrated that EOPPgfl presented, at doses approximately 100 times smaller than LD50, an antinociceptive effect that probably was due to anti-inflammatory activities.

This paper aims to understand how supervisor-nurses of a big private hospital in Belo Horizonte build their professional identity. In order to do that, a descriptive analytical case study was carried out in which nine supervisor nurses were included. Data were collected through semi-structured interviews and the analysis bymeans of the content analysis technique. The analysis focused on: the supervisor nurses' perception concerning the new management procedure used at the hospital; supervisor-nurses' routine at work; nursing education and professional practice; qualifications of an ideal nurse for the management position; and supervisor-nurses' carrier expectations. The results showed that the new management strategy used by thehospital was considered a significant space for the supervisor-nurses' identity reconfiguration, especially because it demonstrates a disharmony between academic instruction and daily practice at work.

O presente artigo teve como objetivo compreender como enfermeiros-supervisores de um hospital privado de grande porte situado em Belo Horizonte constro em sua identidade. Para tanto, foi realizado um estudo de caso descritivo-analítico, do qual participaram nove enfermeiros supervisores. A coleta de dados foi realizada pormeio de entrevista com roteiro semi-estruturado e a análise utilizando-se a técnica de análise de conteúdo, que contemplou as unidades de análise: a percepção dos enfermeiros-supervisores quanto ao novo modo de gestão implantado no hospital; o cotidiano de trabalho dos enfermeiros-supervisores; a formação emenfermagem e a prática profissional; os requisitos de um enfermeiro ideal para a função gerencial; eexpectativas de carreira dos enfermeiros-supervisores. Os resultados mostraram que o novo modo de gestãoa dotado pelo hospital caracterizou-se como espaço significativo de reconfiguração identitária dos enfermeiros-supervisores, particularmente, por marcar o descompasso entre a formação acadêmica e as práticas no cotidiano do trabalho.

En este artículo se pretende comprender cómo los enfermeros-supervisores de un gran hospital privado ubicado en Belo Horizonte construyen su identidad. Para ello, se realizó un estudio de caso descriptivo y analítico que incluyó a nueve enfermeros-supervisores. La recolección de datos se llevó a cabo a través de entrevistas con guión semiestructurado y el análisis mediante la técnica de análisis de contenido, que abarcó las siguientes unidades de análisis: la percepción de los enfermeros-supervisores en cuanto al nuevo método de gestión implantado en el hospital; el trabajo cotidiano de los enfermeros-supervisores; la formación en enfermería y la práctica profesional; los requisitos de un enfermero ideal para el puesto de gestión, y las expectativas de carrera de los enfermeros-supervisores. Los resultados mostraron que el nuevo modo de gestión adoptado por el hospital se caracterizó como un espacio significativo de reconfiguración de identidad de los enfermeros-supervisores, en particular, por poner de relieve el desnivel entre la formación académica y la práctica cotidiana del trabajo.

Duzentos e quarenta avestruzes, com idades entre 12 e 24 meses, foram examinados quanto ao parasitismo por Struthiolipeurus spp. Destes, 168 apresentavam-se infestados por piolhos (70%). Todas as aves foram tratadas com solução de cipermetrina a 15%, na diluição de 1ml/l, por pulverização com auxílio de uma bomba costal. Os animais positivos foram reexaminados nos dias 7, 14 e 21 após o tratamento, e não foram mais encontrados piolhos. A cipermetrina apresentou 100% de eficácia no controle de piolhos do gênero Struthiolipeurus em avestruz.

Os objetivos deste estudo foram avaliar o progresso da murcha bacteriana, a resistência do clone MB 03, selecionado para a raça 1 em Brasília, e detectar a presença do patógeno em tubérculos colhidos de plantas assintomáticas. Durante a primavera (setembro a final de novembro no hemisfério sul) de 1999 e 2000, 14 cultivares ou clones foram cultivados num campo naturalmente infestado com R. solanacearum biovar 2, em Caxias do Sul, RS. O número de plantas com sintomas de murcha foi registrado semanalmente para a obtenção da curva de progresso da doença. Para comparar a resistência dos genótipos de batata à murcha bacteriana foi calculada a área sob a curva de progresso da doença. Dentre os modelos avaliados para ajuste das curvas, o modelo logístico foi o que melhor se ajustou. Ao final das avaliações, em cada período de cultivo, os tubérculos produzidos por plantas assintomáticas foram coletados e armazenados até o início da brotação, quando foram submetidos a testes para detectar a presença de R. solanacearum. A cultivar Cruza 148 e o clone MB 03 foram os genótipos mais resistentes, mas ambos apresentaram tubérculos com infecções latentes. As implicações epidemiológicas da incidência de R. solanacearum raça 3 em lavouras de batata, bem como da resistência de determinados genótipos que podem propiciar tubérculos com infecções latentes, são aspectos de importância para o manejo integrado da murcha bacteriana no RS.

The objectives of this study were to evaluate the progress of Ralstonia solanacearum bacterial potato wilt biovar 2 (race 3) in 14 potato (Solanum tuberosum L.) cultivars or clones, the resistance of potato clone MB 03 (selected in Brasília, Brazil) to race 1 of R. solanacearum, and the occurrence of the pathogen in tubers harvested from asymptomatic potato plants. During the spring (September to the end of November in the southern hemisphere) of 1999 and 2000, 14 cultivars or clones were grown in a field naturally infested with R. solanacearum biovar 2, in Caxias do Sul, RS. The number of wilted potato plants was recorded each week and a disease progress curve plotted, the resistance of the potato genotypes to bacterial wilt being evaluated by determining the area under the curve. Various models were evaluated to fit the curves, with the logistic model being the best fit. At the end of each growing season tubers produced by asymptomatic plants were harvested and stored until budding and then tested for the presence of R. solanacearum. Cultivar Cruza 148 and clone MB 03 were the most resistant but both showed tubers with latent infections. The epidemiological implications of the incidence of R. solanacearum biovar 2 (race 3) in potato crops, as well as the resistance of certain genotypes that may harbor latent infections, are important aspects to be considered in the integrated management of bacterial wilt.

A ocorrência de Struthiopterolichus bicaudatus é assinalada em uma criação de avestruz no estado de Minas Gerais. Os principais sinais associados com a presença dos ácaros foram penas quebradas com a falta de barbas no vexilo, principalmente nas penas das asas, e prurido. Esses sinais foram observados em todas as aves do plantel (285 animais) com idade acima de 13 meses. As aves com idade abaixo de 13 meses (60 animais) não apresentaram qualquer sinal, tampouco ácaros.