Liderazgo en enfermería: análisis del proceso de elección de jefes

The process of choosing heads can be strategic to achieve desired results in nursing care. This study presents an exploratory and descriptive research that aims to analyze the process of choosing heads for the ward, in the nursing area of a teaching hospital in Porto Alegre. Data was collected from registered nurses, technicians and nursing auxiliaries through a semi-structured interview technique and free choice of words. Three theme categories emerged from content analysis: process of choosing heads, managerial competences of the head-to-be and team articulation. Leadership was the word most frequently associated with the process of choosing heads. The consultation process for the choice of the leader also contributes to the success of the manager, as it makes the team members feel co-responsible for the results achieved and legitimizes the head-to-be in their group.El proceso de elección de dirigentes se reviste de importancia estratégica para el alcance de los resultados deseados en el cuidado de enfermería. Este estudio presenta una investigación exploratoria descriptiva, con el objetivo de analizar el proceso de elección de jefes de unidad, en el área de enfermería de un hospital de enseñanza, habiendo recolectado datos con enfermeros, técnicos y auxiliares de enfermería, mediante entrevista semiestructurada y evocación libre de palabras. Del análisis de contenido, emergieron tres categorías temáticas: 1) proceso de elección de jefes, 2) competencias administrativas del futuro jefe y, 3) articulación del equipo. La palabra liderazgo fue la más frecuentemente asociada al proceso de elección de jefes. El proceso de consulta para la elección de jefes contribuye para el éxito de la administración, ya que responsabiliza a los miembros del equipo por los resultados alcanzados y otorga legitimidad al futuro jefe del grupo.O processo de escolha de dirigentes reveste-se de importância estratégica para o alcance dos resultados desejados do cuidado de enfermagem. Este estudo apresenta pesquisa exploratória, descritiva, com o objetivo de analisar o processo de escolha de chefias de unidade, na área de enfermagem de um hospital de ensino, tendo-se coletado dados com enfermeiros, técnicos e auxiliares de enfermagem, mediante entrevista semiestruturada e evocação livre de palavras. Da análise de conteúdo, emergiram três categorias temáticas: processo de escolha de chefias, competências gerenciais do futuro chefe e articulação da equipe. Liderança compreendeu a palavra mais frequentemente associada ao processo de escolha de chefia. O processo consultivo para a escolha dos chefes contribui para o sucesso da gestão, pois corresponsabiliza os membros da equipe pelos resultados alcançados e legitima o futuro chefe em seu grupo

Leadership in Nursing: Analysis of the Process of Choosing The Heads

The process of choosing heads can be strategic to achieve desired results in nursing care. This study presents an exploratory and descriptive research that aims to analyze the process of choosing heads for the ward, in the nursing area of a teaching hospital in Porto Alegre. Data was collected from registered nurses, technicians and nursing auxiliaries through a semi-structured interview technique and free choice of words. Three theme categories emerged from content analysis: process of choosing heads, managerial competences of the head-to-be and team articulation. Leadership was the word most frequently associated with the process of choosing heads. The consultation process for the choice of the leader also contributes to the success of the manager, as it makes the team members feel co-responsible for the results achieved and legitimizes the head-to-be in their group.El proceso de elección de dirigentes se reviste de importancia estratégica para el alcance de los resultados deseados en el cuidado de enfermería. Este estudio presenta una investigación exploratoria descriptiva, con el objetivo de analizar el proceso de elección de jefes de unidad, en el área de enfermería de un hospital de enseñanza, habiendo recolectado datos con enfermeros, técnicos y auxiliares de enfermería, mediante entrevista semiestructurada y evocación libre de palabras. Del análisis de contenido, emergieron tres categorías temáticas: 1) proceso de elección de jefes, 2) competencias administrativas del futuro jefe y, 3) articulación del equipo. La palabra liderazgo fue la más frecuentemente asociada al proceso de elección de jefes. El proceso de consulta para la elección de jefes contribuye para el éxito de la administración, ya que responsabiliza a los miembros del equipo por los resultados alcanzados y otorga legitimidad al futuro jefe del grupo.O processo de escolha de dirigentes reveste-se de importância estratégica para o alcance dos resultados desejados do cuidado de enfermagem. Este estudo apresenta pesquisa exploratória, descritiva, com o objetivo de analisar o processo de escolha de chefias de unidade, na área de enfermagem de um hospital de ensino, tendo-se coletado dados com enfermeiros, técnicos e auxiliares de enfermagem, mediante entrevista semiestruturada e evocação livre de palavras. Da análise de conteúdo, emergiram três categorias temáticas: processo de escolha de chefias, competências gerenciais do futuro chefe e articulação da equipe. Liderança compreendeu a palavra mais frequentemente associada ao processo de escolha de chefia. O processo consultivo para a escolha dos chefes contribui para o sucesso da gestão, pois corresponsabiliza os membros da equipe pelos resultados alcançados e legitima o futuro chefe em seu grupo

Observation of Several Sources of CPCP Violation in B+→π+π+π−B^+ \to \pi^+ \pi^+ \pi^- Decays

International audienceObservations are reported of different sources of CP violation from an amplitude analysis of B+→π+π+π- decays, based on a data sample corresponding to an integrated luminosity of 3  fb-1 of pp collisions recorded with the LHCb detector. A large CP asymmetry is observed in the decay amplitude involving the tensor f2(1270) resonance, and in addition significant CP violation is found in the π+π-S wave at low invariant mass. The presence of CP violation related to interference between the π+π-S wave and the P wave B+→ρ(770)0π+ amplitude is also established; this causes large local asymmetries but cancels when integrated over the phase space of the decay. The results provide both qualitative and quantitative new insights into CP -violation effects in hadronic B decays

Test of lepton universality with Λb0→pK−ℓ+ℓ− {\Lambda}_b^0\to {pK}^{-}{\mathrm{\ell}}^{+}{\mathrm{\ell}}^{-} decays

International audienceThe ratio of branching fractions of the decays ${\Lambda}_b^0$ → pK$^{−}$e$^{+}$e$^{−}$ and ${\Lambda}_b^0$ → pK$^{−}$μ$^{+}$μ$^{−}$,${R}_{pK}^{-1}$, is measured for the first time using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb$^{−1}$ recorded with the LHCb experiment at center-of-mass energies of 7, 8 and 13 TeV. In the dilepton mass-squared range 0.1 < q$^{2}$< 6.0 GeV$^{2}$/c$^{4}$ and the pK$^{−}$ mass range m(pK$^{−}$) < 2600 MeV/c$^{2}$, the ratio of branching fractions is measured to be ${R}_{pK}^{-1}={1.17}_{-0.16}^{+0.18}\pm 0.07$, where the first uncertainty is statistical and the second systematic. This is the first test of lepton universality with b baryons and the first observation of the decay ${\Lambda}_b^0$ → pK$^{−}$e$^{+}$e$^{−}$.[graphic not available: see fulltext

Amplitude analysis of the B+→π+π+π−B^+ \rightarrow \pi^+\pi^+\pi^- decay

International audienceThe results of an amplitude analysis of the charmless three-body decay B+→π+π+π-, in which CP-violation effects are taken into account, are reported. The analysis is based on a data sample corresponding to an integrated luminosity of 3  fb-1 of pp collisions recorded with the LHCb detector. The most challenging aspect of the analysis is the description of the behavior of the π+π-  S-wave contribution, which is achieved by using three complementary approaches based on the isobar model, the K-matrix formalism, and a quasi-model-independent procedure. Additional resonant contributions for all three methods are described using a common isobar model, and include the ρ(770)0, ω(782) and ρ(1450)0 resonances in the π+π- P-wave, the f2(1270) resonance in the π+π- D-wave, and the ρ3(1690)0 resonance in the π+π- F-wave. Significant CP-violation effects are observed in both S- and D-waves, as well as in the interference between the S- and P-waves. The results from all three approaches agree and provide new insight into the dynamics and the origin of CP-violation effects in B+→π+π+π- decays

First observation of excited Ωb−\Omega_b^- states

International audienceWe report four narrow peaks in the Ξb0K- mass spectrum obtained using pp collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9  fb-1 recorded by the LHCb experiment. Referring to these states by their mass, the mass values are m[Ωb(6316)-]=6315.64±0.31±0.07±0.50  MeV, m[Ωb(6330)-]=6330.30±0.28±0.07±0.50  MeV, m[Ωb(6340)-]=6339.71±0.26±0.05±0.50  MeV, m[Ωb(6350)-]=6349.88±0.35±0.05±0.50  MeV, where the uncertainties are statistical, systematic, and the last is due to the knowledge of the Ξb0 mass. The natural widths of the three lower mass states are consistent with zero, and the 90% confidence-level upper limits are determined to be Γ[Ωb(6316)-]<2.8  MeV, Γ[Ωb(6330)-]<3.1  MeV and Γ[Ωb(6340)-]<1.5  MeV. The natural width of the Ωb(6350)- peak is 1.4-0.8+1.0±0.1  MeV, which is 2.5σ from zero and corresponds to an upper limit of 2.8 MeV. The peaks have local significances ranging from 3.6σ to 7.2σ. After accounting for the look-elsewhere effect, the significances of the Ωb(6316)- and Ωb(6330)- peaks are reduced to 2.1σ and 2.6σ, respectively, while the two higher mass peaks exceed 5σ. The observed peaks are consistent with expectations for excited Ωb- resonances

Isospin amplitudes in Λb0→J/ψΛ(Σ0)\Lambda_b^0\to J/\psi \Lambda(\Sigma^0) and Ξb0→J/ψΞ0(Λ)\Xi_b^0\to J/\psi \Xi^0(\Lambda) decays

International audienceRatios of isospin amplitudes in hadron decays are a useful probe of the interplay between weak and strong interactions and allow searches for physics beyond the standard model. We present the first results on isospin amplitudes in b-baryon decays, using data corresponding to an integrated luminosity of 8.5  fb-1, collected with the LHCb detector in pp collisions at center of mass energies of 7, 8, and 13 TeV. The isospin amplitude ratio |A1(Λb0→J/ψΣ0)/A0(Λb0→J/ψΛ)|, where the subscript on A indicates the final-state isospin, is measured to be less than 1/21.8 at 95% confidence level. The Cabibbo suppressed Ξb0→J/ψΛ decay is observed for the first time, allowing for the measurement |A0(Ξb0→J/ψΛ)/A1/2(Ξb0→J/ψΞ0)|=0.37±0.06±0.02, where the uncertainties are statistical and systematic, respectively

Measurement of ∣Vcb∣|V_{cb}| with Bs0→Ds(∗)−μ+νμB_s^0 \to D_s^{(*)-} \mu^+ \nu_{\mu} decays

International audienceThe element |Vcb| of the Cabibbo-Kobayashi-Maskawa matrix is measured using semileptonic Bs0 decays produced in proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3  fb-1. Rates of Bs0→Ds-μ+νμ and Bs0→Ds*-μ+νμ decays are analyzed using hadronic form-factor parametrizations derived either by Caprini, Lellouch and Neubert (CLN) or by Boyd, Grinstein and Lebed (BGL). The measured values of |Vcb| are (41.4±0.6±0.9±1.2)×10-3 and (42.3±0.8±0.9±1.2)×10-3 in the CLN and BGL parametrization, respectively. The first uncertainty is statistical, the second systematic, and the third is due to the external inputs used in the measurement. These results are in agreement with those obtained from decays of B+ and B0 mesons. They are the first determinations of |Vcb| at a hadron-collider experiment and the first using Bs0 meson decays

Search for CPCP violation in Ξc+→pK−π+{{{\varXi }} ^+_{c}} \rightarrow {p} {{K} ^-} {{\pi } ^+} decays using model-independent techniques

International audienceA first search for $CP$ violation in the Cabibbo-suppressed ${{{\varXi }} ^+_{c}} \rightarrow {p} {{K} ^-} {{\pi } ^+}$ decay is performed using both a binned and an unbinned model-independent technique in the Dalitz plot. The studies are based on a sample of proton-proton collision data, corresponding to an integrated luminosity of $3.0\,\text {fb} ^{-1}$, and collected by the LHCb experiment at centre-of-mass energies of 7 and $8\,\text {TeV}$. The data are consistent with the hypothesis of no $CP$ violation