Observation of two new Ξb−\Xi_b^- baryon resonances

Two structures are observed close to the kinematic threshold in the $\Xi_b^0 \pi^-$ mass spectrum in a sample of proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb$^{-1}$ recorded by the LHCb experiment. In the quark model, two baryonic resonances with quark content $bds$ are expected in this mass region: the spin-parity $J^P = \frac{1}{2}^+$ and $J^P=\frac{3}{2}^+$ states, denoted $\Xi_b^{\prime -}$ and $\Xi_b^{*-}$. Interpreting the structures as these resonances, we measure the mass differences and the width of the heavier state to be $m(\Xi_b^{\prime -}) - m(\Xi_b^0) - m(\pi^{-}) = 3.653 \pm 0.018 \pm 0.006$ MeV$/c^2$, $m(\Xi_b^{*-}) - m(\Xi_b^0) - m(\pi^{-}) = 23.96 \pm 0.12 \pm 0.06$ MeV$/c^2$, $\Gamma(\Xi_b^{*-}) = 1.65 \pm 0.31 \pm 0.10$ MeV, where the first and second uncertainties are statistical and systematic, respectively. The width of the lighter state is consistent with zero, and we place an upper limit of $\Gamma(\Xi_b^{\prime -}) < 0.08$ MeV at 95% confidence level. Relative production rates of these states are also reported.Comment: 17 pages, 2 figure

Precision measurement of CPCP violation in Bs0→J/ψK+K−B_s^0 \to J/\psi K^+K^- decays

The time-dependent $CP$ asymmetry in $B_s^0 \to J/\psi K^+K^-$ decays is measured using $pp$ collision data, corresponding to an integrated luminosity of $3.0$fb$^{-1}$, collected with the LHCb detector at centre-of-mass energies of $7$ and $8$TeV. In a sample of 96 000 $B_s^0 \to J/\psi K^+K^-$ decays, the $CP$-violating phase $\phi_s$ is measured, as well as the decay widths $\Gamma_{L}$ and $\Gamma_{H}$ of the light and heavy mass eigenstates of the $B_s^0-\bar{B}_s^0$ system. The values obtained are $\phi_s = -0.058 \pm 0.049 \pm 0.006$ rad, $\Gamma_s \equiv (\Gamma_{L}+\Gamma_{H})/2 = 0.6603 \pm 0.0027 \pm 0.0015$ps$^{-1}$, and$\Delta\Gamma_s \equiv \Gamma_{L} - \Gamma_{H} = 0.0805 \pm 0.0091 \pm 0.0032$ps$^{-1}$, where the first uncertainty is statistical and the second systematic. These are the most precise single measurements of those quantities to date. A combined analysis with $B_s^{0} \to J/\psi \pi^+\pi^-$ decays gives $\phi_s = -0.010 \pm 0.039$rad. All measurements are in agreement with the Standard Model predictions. For the first time the phase $\phi_s$ is measured independently for each polarisation state of the $K^+K^-$ system and shows no evidence for polarisation dependence.Comment: 6 figure

Evaluation of prenatal care in unit with family health strategy

We analyzed prenatal care (PN) provided at a unit of the Family Health Strategy Service in São Paulo, according to the indicators of the Program for the Humanization of Prenatal and Birth (PHPB). We compared adequacy of PN in terms of sociodemographic variables, procedures, examinations and maternal and perinatal outcomes. Cross-sectional study with data from records of 308 pregnant women enrolled in 2011. We observed early initiation of PN (82.1%), conducting of a minimum of six consultations (84.1%), puerperal consultation (89.0%); to the extent that there is a sum of the actions, there is a significant drop in the proportion of adequacy. Prenatal care was adequate for 67.9%, with a significant difference between adequacy groups in relation to gestational age and birth weight. Prenatal care deficiencies exist, especially in regards to registration of procedures, exams and immunization. The difference between adequacy groups with respect to perinatal outcomes reinforces the importance of prenatal care that adheres to the parameters of the PHPB

O olhar da enfermagem sobre as práticas de cuidado de famílias rurais à pessoa com câncer

O objetivo deste estudo foi identificar as práticas de cuidados das famílias rurais que vivenciam o cuidar da pessoa com câncer. Trata-se de estudo qualitativo, que utilizou como referencial teórico-metodológico o Modelo Bioecológico de Urie Bronfenbrenner e o método da inserção ecológica. Participaram três famílias da área rural, que tinham um de seus membros em tratamento quimioterápico no Serviço de Oncologia de um Hospital Escola da região Sul do Brasil. A coleta de dados ocorreu entre fevereiro e julho de 2009. Constatou-se que a família rural cuida a partir das práticas de cuidado que foram construídas com base nas interações entre as pessoas da família ao longo das gerações e em outras práticas da comunidade. O carinho, o amor, a proteção, a união familiar, a fé, o estar junto, a preocupação com a alimentação descrevem o cuidar e constituem-se como práticas de cuidado das famílias rurais à pessoa com câncer

Evaluation of pre-natal care from the perspective of different models in primary care

OBJETIVOS: avaliar a qualidade do cuidado pré-natal desenvolvido na atenção primária, comparando os modelos tradicional e Estratégia Saúde da Família. MÉTODO: estudo de avaliação de serviço, pautado nas políticas públicas de saúde. Os dados foram obtidos por meio de entrevista com gerentes, observação nas unidades de saúde e análise de prontuários de gestantes, selecionados aleatoriamente. Diferenças nos indicadores de estrutura e processo foram avaliadas pelo teste qui-quadrado, adotando-se p<0,05 como nível crítico, cálculo dos odds ratio e intervalos de confiança de 95%. RESULTADOS: foram evidenciadas estruturas semelhantes em ambos os modelos de atenção. Indicadores-síntese de processo, criados neste estudo, e os indicados pelas políticas públicas apontaram situação mais favorável nas Unidades de Saúde da Família. Para o conjunto de atividades preconizadas para o pré-natal, o desempenho foi deficiente em ambos os modelos, embora pouco melhor nas Unidades de Saúde da Família. CONCLUSÃO: os resultados indicam a necessidade de ações para melhoria da atenção pré-natal nos dois modelos de atenção básica no município avaliado.OBJETIVOS: Evaluar la calidad del cuidado prenatal desarrollado en la atención primaria, comparando los modelos tradicional y Estrategia Salud de la Familia. MÉTODO: estudio de evaluación de servicio, pautado en las políticas públicas de salud. Los datos fueron recolectados por entrevista con gerentes, observación en las unidades de salud y análisis de archivos de gestantes elegidos aleatoriamente. Diferencias en los indicadores de estructura y proceso fueron evaluadas mediante el test ji cuadrado, adoptándose p<0,05 como nivel crítico, cálculo de los odds ratio e intervalos de confianza del 95%. RESULTADOS: Fueron evidenciadas estructuras semejantes en ambos modelos de atención. Indicadores síntesis de proceso creados en este estudio y aquellos indicados por las políticas públicas mostraron situación más favorable en las Unidades de Salud de la Familia. Para el conjunto de actividades recomendadas para el prenatal, el desempeño fue deficiente en ambos modelos, aunque poco mejor en las Unidades de Salud de la Familia. CONCLUSIÓN: los resultados indican la necesidad de acciones para mejorar la atención prenatal en los dos modelos de atención básica en el municipio evaluado.OBJECTIVES: to evaluate the quality of the pre-natal care delivered in primary care, comparing the traditional model and the Family Health Strategy. METHOD: a service evaluation study, grounded in the public health policies. The data was obtained from interviews with managers, observation in the health centers, and analysis of patient records of pregnant women, selected at random. Differences in the indicators for structure and process were evaluated using the Chi-squared test, adopting p<0.05 as the critical value, calculation of the odds ratio, and confidence intervals of 95%. RESULTS: Similar structures were evidenced in both models of care. Synthesis indicators for the process created in the present study, and those indicated by the public policies, indicated that the situation is more favorable in Family Health Centers. Regarding the set of activities called for in pre-natal care, the performance was flawed in both models, although it was slightly better in the Family Health Centers. CONCLUSION: the results indicate the need for actions to improve pre-natal care in the two models of primary care evaluated in the municipality

Measurement of the Z+b-jet cross-section in pp collisions at √s = 7 TeV in the forward region

The associated production of a Z boson or an off-shell photon γ ∗ with a bottom quark in the forward region is studied using proton-proton collisions at a centre-of-mass energy of 7 TeV. The Z bosons are reconstructed in the Z/γ∗ → µ +µ − final state from muons with a transverse momentum larger than 20 GeV, while two transverse momentum thresholds are considered for jets (10 GeV and 20 GeV). Both muons and jets are reconstructed in the pseudorapidity range 2.0 &#60; η &#60; 4.5. The results are based on data corresponding to 1.0 fb−1 recorded in 2011 with the LHCb detector. The measurement of the Z+b-jet cross-section is normalized to the Z+jet cross-section. The measured cross-sections are σ(Z/γ∗ (µ +µ −) + b-jet) = 295 ± 60 (stat) ± 51 (syst) ± 10 (lumi) fb (0.1) for pT(jet) &#62; 10 GeV, and σ(Z/γ∗ (µ +µ −) + b-jet) = 128 ± 36 (stat) ± 22 (syst) ± 5 (lumi) fb (0.2) for pT(jet) &#62; 20 GeV

Measurement of indirect CP asymmetries in D 0 → K − K + and D 0 → π − π + decays using semileptonic B decays

No abstract available