110 research outputs found

    Women hospitalized due to abortion in a maternity teaching hospital in Recife, Brazil

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    Estudo de corte transversal, realizado com 160 mulheres no período de 2005-2006, com o objetivo de descrever as características sócio-demográficas e reprodutivas de mulheres hospitalizadas por abortamento e o conhecimento sobre métodos contraceptivos e de indução para o abortamento. Para determinação da associação entre a classificação do abortamento e as variáveis sócio-demográficas e reprodutivas, utilizou-se o teste qui-quadrado de Pearson, considerando-se o nível de significância de 5%. Observou-se uma frequência de 56,3% de abortamento possivelmente induzido. A maioria ocorreu antes das 12 semanas (55,7%). Em relação ao perfil das mulheres: 48,9% entre 20-29 anos, 72,0% com oito anos ou mais de estudo; 90,1% tinham companheiros; 52,0% tinham de 1-3 filhos, 100% conheciam a pílula e o preservativo, e 80,0% o misoprostol. O perfil sócio-demográfico e reprodutivo das mulheres hospitalizadas por abortamento no serviço não se alterou nos últimos anos. O método mais conhecido para indução do abortamento continua sendo o misoprostol.Estudio de corte transversal, realizado con 160 mujeres en el período 2005-2006 con el objetivo de describir las características socio-demográficas y reproductivas de mujeres hospitalizadas por aborto, el conocimiento sobre métodos anticonceptivos y de inducción del aborto. Para la determinación de la asociación entre la clasificación del aborto y las variables socio-demográficas y reproductivas se utilizó el test quincuadrado de Pearson, considerándose el nivel de significatividad de 5%. Se observó una frecuencia de 56,3% de abortos posiblemente inducidos. La mayoría ocurrió antes de las 12 semanas (55,7%). En relación al perfil de las mujeres: 48% entre 20 y 29 años, 72,0% con ocho años de estudios o más, 90,1% con compañeros, 52,0% tenían entre 1 y 3 hijos, 100% conocían la píldora y el condón y 80% el misoprostol. El perfil socio-demográfico y reproductivo de las mujeres hospitalizadas por aborto en el servicio no se alteró en los últimos años. El método más conocido para la inducción del aborto continúa siendo el misoprostol.This cross-sectional study was performed with 160 women between 2005-2006. The objective was to describe the social-demographic and reproductive characteristics of women hospitalized due to abortions, and their knowledge about contraceptive methods and abortion induction. In order to determine the association between the abortion classification and social-demographic variables, Pearson's chi-square test was used, with a significance level of 5%. A frequency of 56.3% was found for probably induced abortions. Most cases of abortion occurred before 12 weeks (55.7%). As for the women's profiles: 48.9% were between 20-29 years old, 72.0% had eight years or more of schooling, 90.1% had a partner, 52.0% had 1-3 children, 100% knew about oral contraceptives and condoms and 80.0% had heard about misoprostol. The social-demographic and reproductive profile of women hospitalized at the referred service due to abortion did not change over the last years. Misoprostol remains the most known method for abortion induction

    Reinfecção da Covid-19 em neonatos e crianças: revisão de literatura : Reinfection of Covid-19 in neonates and children: literature review

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    Em dezembro de 2019, um novo vírus respiratório foi detectado na China, sendo denominado posteriormente como COVID-19, provindo do vírus SARS-CoV-2. Este vírus se espalhou rapidamente gerando uma pandemia mundial. Vários foram e ainda são os problemas decorrentes deste vírus, que atingiu desde crianças aos idosos, dentre eles, cita-se a reinfeção dos indivíduos, causando como consequência, problemas de saúde inacabáveis. Assim, devido aos estudos elencarem menores sinais e sintomas nas crianças e, ainda, menores taxas de infecção, passou-se a questionar quanto as reinfecções em crianças e neonatos. Por isso, o estudo objetivou realizar uma revisão de literatura sobre reinfecção de COVID-19 em crianças e neonatos. Para isso, realizou-se uma revisão sistemática de literatura, através de uma busca nas bases de dados Latino-Americana e do Caribe em Ciências da Saúde, Google Scholar e Scientific Electronic Library Online, utilizando-se os descritores: Reinfecção COVID-19; Reinfecção COVID-19 em crianças; Reinfecção COVID-19 em neonatos; COVID-19 e reinfecção. Com isso, foram selecionados 10 artigos que compunham os critérios de inclusão e exclusão do presente estudo. Dessa forma, destaca-se que os estudos evidenciaram que o número de reinfecções em crianças e neonatos é baixo, porém, são escassas as literaturas sobre o tema, possuindo, assim diversas lacunas a serem sanadas para uma compreensão melhor do assunto

    Pervasive gaps in Amazonian ecological research

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    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

    Pervasive gaps in Amazonian ecological research

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    Alcoolismo em pacientes submetidos a cirurgia bariátrica: uma revisão sistemática: Alcoholism in patients undergoing bariatric surgery: a systematic review

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    A Cirurgia bariátrica tem sido uma opção de muitas pessoas que visam superar a obesidade e garantir qualidade de vida e saúde. No entanto, casos de complicações clínicas após operação tem ocorrido, sendo comum a incidência de alcoolismo. Este estudo teve como objetivo refletir sobre as causas da incidência de alcoolismo entre pacientes que foram submetidos a cirurgias bariátricas. Para o alcance dessa finalidade, realizou-se uma revisão sistemática de literatura, selecionando-se fontes das bases de dados Scielo Brasil, PubMed e Biblioteca Virtual em Saúde (BVS), publicados em língua portuguesa, nos anos de 2017 a 2022. Realizando-se a análise dos dados concluiu-se que o transtorno do uso de álcool em pessoas submetidas à cirurgia bariátrica tem sido recorrente, especialmente entre homens de baixa renda e que fizeram a cirurgia do tipo bypass gástrico. Observou-se também que o consumo de álcool é maior no pós-operatório e que boa parte dos pacientes que se submeteu a esse tipo de cirurgia ignorava o risco de desenvolver o referido transtorno. Em função disso, boa parte dos estudos que integraram esta revisão reconhece a necessidade do acompanhamento, pela equipe de saúde, dos pacientes logo após a cirurgia bariátrica e a adesão desses ao tratamento devido, visando prevenir o transtorno do uso de álcool

    Multidifferential study of identified charged hadron distributions in ZZ-tagged jets in proton-proton collisions at s=\sqrt{s}=13 TeV

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    Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a ZZ boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20 <pT<100< p_{\textrm{T}} < 100 GeV and in the pseudorapidity range 2.5<η<42.5 < \eta < 4. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb1^{-1}. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb public pages

    Study of the BΛc+ΛˉcKB^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} decay

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    The decay BΛc+ΛˉcKB^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} is studied in proton-proton collisions at a center-of-mass energy of s=13\sqrt{s}=13 TeV using data corresponding to an integrated luminosity of 5 fb1\mathrm{fb}^{-1} collected by the LHCb experiment. In the Λc+K\Lambda_{c}^+ K^{-} system, the Ξc(2930)0\Xi_{c}(2930)^{0} state observed at the BaBar and Belle experiments is resolved into two narrower states, Ξc(2923)0\Xi_{c}(2923)^{0} and Ξc(2939)0\Xi_{c}(2939)^{0}, whose masses and widths are measured to be m(Ξc(2923)0)=2924.5±0.4±1.1MeV,m(Ξc(2939)0)=2938.5±0.9±2.3MeV,Γ(Ξc(2923)0)=0004.8±0.9±1.5MeV,Γ(Ξc(2939)0)=0011.0±1.9±7.5MeV, m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV}, where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt Λc+K\Lambda_{c}^{+} K^{-} sample. Evidence of a new Ξc(2880)0\Xi_{c}(2880)^{0} state is found with a local significance of 3.8σ3.8\,\sigma, whose mass and width are measured to be 2881.8±3.1±8.5MeV2881.8 \pm 3.1 \pm 8.5\,\mathrm{MeV} and 12.4±5.3±5.8MeV12.4 \pm 5.3 \pm 5.8 \,\mathrm{MeV}, respectively. In addition, evidence of a new decay mode Ξc(2790)0Λc+K\Xi_{c}(2790)^{0} \to \Lambda_{c}^{+} K^{-} is found with a significance of 3.7σ3.7\,\sigma. The relative branching fraction of BΛc+ΛˉcKB^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} with respect to the BD+DKB^{-} \to D^{+} D^{-} K^{-} decay is measured to be 2.36±0.11±0.22±0.252.36 \pm 0.11 \pm 0.22 \pm 0.25, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb public pages

    Measurement of the ratios of branching fractions R(D)\mathcal{R}(D^{*}) and R(D0)\mathcal{R}(D^{0})

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    The ratios of branching fractions R(D)B(BˉDτνˉτ)/B(BˉDμνˉμ)\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu}) and R(D0)B(BD0τνˉτ)/B(BD0μνˉμ)\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu}) are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb1{ }^{-1} of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode τμντνˉμ\tau^{-}\to\mu^{-}\nu_{\tau}\bar{\nu}_{\mu}. The measured values are R(D)=0.281±0.018±0.024\mathcal{R}(D^{*})=0.281\pm0.018\pm0.024 and R(D0)=0.441±0.060±0.066\mathcal{R}(D^{0})=0.441\pm0.060\pm0.066, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is ρ=0.43\rho=-0.43. Results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the Standard Model.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-039.html (LHCb public pages
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