Observation of Two New Excited Ξb0 States Decaying to Λb0 K-π+

Two narrow resonant states are observed in the Λb0K-π+ mass spectrum using a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the LHCb experiment and corresponding to an integrated luminosity of 6 fb-1. The minimal quark content of the Λb0K-π+ system indicates that these are excited Ξb0 baryons. The masses of the Ξb(6327)0 and Ξb(6333)0 states are m[Ξb(6327)0]=6327.28-0.21+0.23±0.12±0.24 and m[Ξb(6333)0]=6332.69-0.18+0.17±0.03±0.22 MeV, respectively, with a mass splitting of Δm=5.41-0.27+0.26±0.12 MeV, where the uncertainties are statistical, systematic, and due to the Λb0 mass measurement. The measured natural widths of these states are consistent with zero, with upper limits of Γ[Ξb(6327)0]<2.20(2.56) and Γ[Ξb(6333)0]<1.60(1.92) MeV at a 90% (95%) credibility level. The significance of the two-peak hypothesis is larger than nine (five) Gaussian standard deviations compared to the no-peak (one-peak) hypothesis. The masses, widths, and resonant structure of the new states are in good agreement with the expectations for a doublet of 1D Ξb0 resonances

Cuidado nutricional hospitalar: percepção de nutricionistas para atendimento humanizado Hospital nutritional care: perception of the nutritionist for humanized attendance

A pesquisa identificou as ações de cuidado alimentar e nutricional considerando as perspectivas da equipe de nutricionistas de um hospital de referência para a Política Nacional de Humanização (PNH). A partir de uma abordagem qualitativa, utilizou-se a técnica de grupos focais. A pesquisa envolveu treze nutricionistas, que foram divididas em dois grupos de acordo com o tempo de serviço, seguindo critérios de homogeneidade. As entrevistas foram desenvolvidas para análise da categoria: ser nutricionista para um atendimento humanizado, buscando-se conhecer as seguintes ações da prática destes profissionais: avaliação nutricional do paciente; planejamento, implementação e avaliação do cuidado nutricional e alimentar. A análise do conteúdo foi utilizada como técnica para sistematização das informações obtidas, agrupando-as em unidades de significado. O estudo revelou que há priorização do atendimento individualizado em função do número de leitos e de atividades burocráticas, falta de autonomia em relação à prescrição de dietas, dificuldades de interação com outros profissionais de saúde e entre as nutricionistas das áreas clínica e produção de refeições. Os resultados deste estudo poderão oferecer aos profissionais subsídios que fundamentem ações para a construção de um modelo de cuidado alimentar e nutricional humanizado em hospitais.<br>The research analyzed the actions of alimentary and nutritional care considering the perspectives of the nutritionists in a hospital reference for the National Politics of Humanization (PNH). From a qualitative approach, a focal group technique was used. The nutritionists were divided in two groups by working time, following homogeneity criteria. The interviews were developed for analysis of the category: Being a nutritionist for a humanized assistance, seeking to understand these professionals following actions: nutritional evaluation of the patient; planning, implementation and evaluation of the nutritional and alimentary care. The analysis of the content was used as a technique for the systematization of the collected information grouped in units of meaning. The study disclosed that there is prioritization of the individualized assistance in function of the number of beds and bureaucratic activities, lack of autonomy in relation to the prescription of diets, difficulties of interaction with other health professionals and between the nutritionists of the clinical and meal production areas. The results will provide the professional subsidies that substantiate actions for the construction of a model of humanized alimentary and nutritional care on hospitals

The Impacts of Persistent Behaviour and Cost Sharing Policy on Demand for Outpatient Visits by the Elderly: Evidence from Taiwan’s National Health Insurance.

[[abstract]]Establishing how to reform the cost-sharing policy to reduce waste in health-care utilisation is an important issue, especially in an ageing society. Using a generalised method of moments (GMM) for the dynamic panel count model during the period 1997–2007 from the National Health Insurance (NHI) programme in Taiwan, this study examines the effects of persistent behaviour and the cost-sharing policy on outpatient medical utilisation for Taiwan’s elderly. Empirically, we find positive and negative coefficient estimations for persistent behaviour and price elasticity, respectively, thereby creating a clear trade-off effect of the cost-sharing policy on health-care utilisation. Furthermore, our study finds that the short-run price elasticity (−0.2561) is always smaller than long-run elasticity (−0.4052). Finally, the empirical results indicate that the price elasticity for females and patients with high medical expenditure, low income, high chronic diseases and good health is higher than that for males and patients with low medical expenditure, high income, low chronic diseases and bad health.[[notice]]補正完

Tests of Lepton Universality Using B-0 -> K(S)(0)l(+) l(-) and B+ -> K*(+)l(+)l(-) Decays

Tests of lepton universality in B-0 -> K(S)(0)l(+)l(-) and B+ -> K*(+)l(+)l(-) decays where l is either an electron or a muon are presented. The differential branching fractions of B-0 -> K(S)(0)e(+)e(-) and B+ -> K*(+)e(+)e(-) decays are measured in intervals of the dilepton invariant mass squared. The measurements are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb(-1). The results are consistent with the standard model and previous tests of lepton universality in related decay modes. The first observation of B-0 -> K(S)(0)e(+)e(-) and B+ -> K*(+)e(+)e(-) decays is reported

Measurement of the photon polarization in Lambda(0)(b) -> Lambda gamma decays

The photon polarization in b→sγ transitions is measured for the first time in radiative b-baryon decays exploiting the unique spin structure of Λb0→Λγ decays. A data sample corresponding to an integrated luminosity of 6 fb-1 collected by the LHCb experiment in pp collisions at a center-of-mass energy of 13 TeV is used. The photon polarization is measured to be αγ=0.82-0.26-0.13+0.17+0.04, where the first uncertainty is statistical and the second systematic. This result is in agreement with the Standard Model prediction and previous measurements in b-meson decays. Charge-parity breaking effects are studied for the first time in this observable and found to be consistent with CP symmetry