230 research outputs found

    La hermenéutica como método en la investigación sobre errores de enfermería en los medios de comunicacion

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    O objetivo deste artigo é relatar como as concepções da hermenêutica de Paul Ricoeur utilizadas como referencial metodológico em uma tese de doutorado, contribuíram para a compreensão do fenômeno - erro de enfermagem na comunicação social. O referencial adotado se revelou coerente, com a proposta da pesquisa de abordagem qualitativa, documental, por proporcionar a interpretação de textos escritos pela mídia e suas interfaces diante do fenômeno “erro”. Destaca-se a importância do referencial para pesquisas na enfermagem, pelo diálogo que proporciona com o destinatário do trabalho da profissão - os seres humanos - e pelas possibilidades de interpretação do que é dito e escrito sobre a profissão, quando não há um desfecho favorável de sua práxis.The aim of this article is to report how the conceptions of Paul Ricoeur's hermeneutics, used as a methodological reference of the doctoral thesis contributed to the understanding of the phenomenon - social. The adopted framework proved to be coherent with the proposal of a qualitative and documentary approach, since it provides the interpretation of texts written by the media and their interfaces to the "error" phenomenon. Emphasis is placed on the importance of the referential for nursing research, for the dialogue it provides with the recipient of the profession's work - human beings - and for the possibilities of interpretation of what is said and written about the profession, when there is no favorable outcome of his praxis.El propósito de este artículo es describir cómo los conceptos de la hermenéutica de Paul Ricoeur, que se utiliza como un marco metodológico de una tesis doctoral contribuyeron a la comprensión del fenómeno error de enfermería en la comunicación social. El marco adoptado resultó coherente con la propuesta de la investigación cualitativa, en documentos, proporcionando la interpretación de los textos escritos por los medios de comunicación y sus interfaces del fenómeno de "error". Se destaca la importancia de referencia para la investigación en enfermería, el diálogo que proporciona el destinatario de la profesión - los seres humanos - y las posibilidades de interpretación de lo que se ha dicho y escrito acerca de la profesión cuando no hay un resultado favorable en su praxis. Descriptores: Hermenéutica; Investigación cualitativa; Enfermería; Seguridad del paciente.info:eu-repo/semantics/publishedVersio

    A hermenêutica como método numa pesquisa sobre erros de enfermagem na mídia

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    O objetivo deste artigo é relatar como as concepções da hermenêutica de Paul Ricoeur utilizadas como referencial metodológico em uma tese de doutorado, contribuíram para a compreensão do fenômeno - erro de enfermagem na comunicação social. O referencial adotado se revelou coerente, com a proposta da pesquisa de abordagem qualitativa, documental, por proporcionar a interpretação de textos escritos pela mídia e suas interfaces diante do fenômeno “erro”. Destaca-se a importância do referencial para pesquisas na enfermagem, pelo diálogo que proporciona com o destinatário do trabalho da profissão - os seres humanos - e pelas possibilidades de interpretação do que é dito e escrito sobre a profissão, quando não há um desfecho favorável de sua práxisThe aim of this article is to report how the conceptions of Paul Ricoeur's hermeneutics, used as a methodological reference of the doctoral thesis contributed to the understanding of the phenomenon - social. The adopted framework proved to be coherent with the proposal of a qualitative and documentary approach, since it provides the interpretation of texts written by the media and their interfaces to the "error" phenomenon. Emphasis is placed on the importance of the referential for nursing research, for the dialogue it provides with the recipient of the profession's work - human beings - and for the possibilities of interpretation of what is said and written about the profession, when there is no favorable outcome of his praxisEl propósito de este artículo es describir cómo los conceptos de la hermenéutica de Paul Ricoeur, que se utiliza como un marco metodológico de una tesis doctoral contribuyeron a la comprensión del fenómeno error de enfermería en la comunicación social. El marco adoptado resultó coherente con la propuesta de la investigación cualitativa, en documentos, proporcionando la interpretación de los textos escritos por los medios de comunicación y sus interfaces del fenómeno de "error". Se destaca la importancia de referencia para la investigación en enfermería, el diálogo que proporciona el destinatario de la profesión - los seres humanos - y las posibilidades de interpretación de lo que se ha dicho y escrito acerca de la profesión cuando no hay un resultado favorable en su praxisinfo:eu-repo/semantics/publishedVersio

    Synergy of extreme drought and shrub invasion reduce ecosystem functioning and resilience in water-limited climates

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    Extreme drought events and plant invasions are major drivers of global change that can critically affect ecosystem functioning and alter ecosystem-atmosphere exchange. Invaders are expanding worldwide and extreme drought events are projected to increase in frequency and intensity. However, very little is known on how these drivers may interact to affect the functioning and resilience of ecosystems to extreme events. Using a manipulative shrub removal experiment and the co-occurrence of an extreme drought event (2011/2012) in a Mediterranean woodland, we show that native shrub invasion and extreme drought synergistically reduced ecosystem transpiration and the resilience of key-stone oak tree species. Ecosystem transpiration was dominated by the water use of the invasive shrub Cistus ladanifer, which further increased after the extreme drought event. Meanwhile, the transpiration of key-stone tree species decreased, indicating a competitive advantage in favour of the invader. Our results suggest that in Mediterranean-type climates the invasion of water spending species and projected recurrent extreme drought events may synergistically cause critical drought tolerance thresholds of key-stone tree species to be surpassed, corroborating observed higher tree mortality in the invaded ecosystems. Ultimately, this may shift seasonally water limited ecosystems into less desirable alternative states dominated by water spending invasive shrubs

    Search for CP violation in D+→ϕπ+ and D+s→K0Sπ+ decays

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    A search for CP violation in D + → ϕπ + decays is performed using data collected in 2011 by the LHCb experiment corresponding to an integrated luminosity of 1.0 fb−1 at a centre of mass energy of 7 TeV. The CP -violating asymmetry is measured to be (−0.04 ± 0.14 ± 0.14)% for candidates with K − K + mass within 20 MeV/c 2 of the ϕ meson mass. A search for a CP -violating asymmetry that varies across the ϕ mass region of the D + → K − K + π + Dalitz plot is also performed, and no evidence for CP violation is found. In addition, the CP asymmetry in the D+s→K0Sπ+ decay is measured to be (0.61 ± 0.83 ± 0.14)%

    A Phase I study of the angiogenesis inhibitor SU5416 (semaxanib) in solid tumours, incorporating dynamic contrast MR pharmacodynamic end points

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    SU5416 (Z-3-[(2,4-dimethylpyrrol-5-yl)methylidenyl]-2-indolinone; semaxanib) is a small molecule inhibitor of the vascular endothelial growth factor receptor (VEGFR)2. A Phase I dose escalation study was performed. Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) was used as a pharmacodynamic assessment tool. In all, 27 patients were recruited. SU5416 was administered twice weekly by fixed rate intravenous infusion. Patients were treated in sequential cohorts of three patients at 48, 65, 85 110 and 145 mg m−2. A further dose level of 190 mg m−2 after a 2-week lead in period at a lower dose was completed; thereafter, the cohort at 145 mg m−2 was expanded. SU5416 showed linear pharmacokinetics to 145 mg m−2 with a large volume of distribution and rapid clearance. A significant degree of interpatient variability was seen. SU5416 was well tolerated, by definition a maximum-tolerated dose was not defined. No reproducible changes were seen in DCE-MRI end points. Serial assessments of VEGF in a cohort of patients treated at 145 mg m−2 did not show a statistically significant treatment-related change. Parallel assessments of the impact of SU5416 on coagulation profiles in six patients showed a transient effect within the fibrinolytic pathway. Clinical experience showed that patients who had breaks of therapy longer than a week could not have treatment reinitiated at a dose of 190 mg m−2 without unacceptable toxicity. The 145 mg m−2 dose level is thus the recommended dose for future study

    Updated measurements of exclusive J/ψ and ψ(2S) production cross-sections in pp collisions at √s = 7 TeV

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    The differential cross-section as a function of rapidity has been measured for the exclusive production of J/ψ and ψ(2S) mesons in proton–proton collisions at √s = 7 TeV, using data collected by the LHCb experiment, corresponding to an integrated luminosity of 930 pb−1. The cross-sections times branching fractions to two muons having pseudorapidities between 2.0 and 4.5 are measured to be where the first uncertainty is statistical and the second is systematic. The measurements agree with next-to-leading order QCD predictions as well as with models that include saturation effects

    Measurement of the Λb0, Ξb-, and Ωb- Baryon Masses

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    Bottom baryons decaying to a J/ψ meson and a hyperon are reconstructed using 1.0  fb-1 of data collected in 2011 with the LHCb detector. Significant Λb0→J/ψΛ, Ξb-→J/ψΞ- and Ωb-→J/ψΩ- signals are observed and the corresponding masses are measured to be M(Λb0)=5619.53±0.13(stat.)±0.45(syst.)  MeV/c2, M(Ξb-)=5795.8±0.9(stat.)±0.4(syst.)  MeV/c2, M(Ωb-)=6046.0±2.2(stat.)±0.5(syst.)  MeV/c2, while the differences with respect to the Λb0 mass are M(Ξb-)-M(Λb0)=176.2±0.9(stat.)±0.1(syst.)  MeV/c2, M(Ωb-)-M(Λb0)=426.4±2.2(stat.)±0.4(syst.)  MeV/c2. These are the most precise mass measurements of the Λb0, Ξb- and Ωb- baryons to date. Averaging the above Λb0 mass measurement with that published by LHCb using 35  pb-1 of data collected in 2010 yields M(Λb0)=5619.44±0.13(stat.)±0.38(syst.)  MeV/c2

    First Measurement of the Charge Asymmetry in Beauty-Quark Pair Production

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    The difference in the angular distributions between beauty quarks and antiquarks, referred to as the charge asymmetry, is measured for the first time in b (b) over bar pair production at a hadron collider. The data used correspond to an integrated luminosity of 1.0 fb(-1) collected at 7 TeV center-of-mass energy in proton-proton collisions with the LHCb detector. The measurement is performed in three regions of the invariant mass of the b (b) over bar system. The results obtained are A(C)(b (b) over bar) (40 10(5) GeV/c(2)) = 1.6 +/- 1.7 +/- 0.6%,where A(C)(b (b) over bar) is defined as the asymmetry in the difference in rapidity between jets formed from the beauty quark and antiquark, where in each case the first uncertainty is statistical and the second systematic. The beauty jets are required to satisfy 2 20 GeV, and have an opening angle in the transverse plane Delta phi > 2.6 rad. These measurements are consistent with the predictions of the standard model

    Overactive bladder – 18 years – Part II

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