172 research outputs found

    ALOCAÇÃO DE BIOMASSA EM PLANTAS DE BAMBU EM RESPOSTA A ADUBAÇÃO MINERAL

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    The present study aims to evaluate the influence of mineral fertilization on the allocation of biomass in the roots, culm and leaves of bamboo plants cultivated in green house. The soil is classified as Quartzipsamment, and it was fertilized with the doses equivalent to 0, 20, 40, 80, and 120 kg ha-1 of nitrogen and 0, 10, 40, 80, and 100 kg ha-1 of phosphorus and potassium. The experimental design was randomized blocks with four replications. Bamboo plants were grown for 120 days in green house. After this period the plants were harvested and the total biomass was determined as well the biomass allocation in leaves, culm and roots. The highest total dry weight biomass was achieved by the dose of 120, 10 e 100 kg ha-1 of NPK. The highest biomass production in leaves, was obtained with the dose equivalent to 80, 10 and 100 kg ha-1 NPK. The highest culm biomass biomass production was with the doses equivalent to 120, 40 and 100 kg ha-1 NPK. And the highest production in the root was achieved respectively by the doses of 80, 10 and 100 kg ha-1 of NPK. The fertilization whit N and K provided increase in the production of the total biomass of the bamboo plants.O presente estudo teve como o objetivo avaliar a influência da adubação mineral na alocação de biomassa nas raízes, colmo e folhas de bambu cultivadas em casa de vegetação. O solo é classificado como Neossolo Quartzarenico, foi adubado com as doses equivalentes a 0, 20, 40, 80 e 120 kg ha-1 de nitrogênio e 0, 10, 40, 80 e 100 kg ha-1 de fósforo e potássio, respectivamente. O delineamento experimental foi em blocos casualizados, em um esquema fatorial com quatro repetições. As plantas de bambu foram cultivadas durante 120 dias em casa de vegetação. Após este período as plantas foram coletadas e determinadas a biomassa das folhas, colmo, raízes e biomassa total. A maior produção de biomassa seca total foi obtida nas doses equivalentes a 120, 10 e 100 kg ha-1 de NPK. A maior produção da biomassa seca das folhas foi obtida com as doses equivalentes a 80, 10 e 100 kg ha-1 NPK, respectivamente. No colmo com as doses equivalentes a 120, 40 e 100 kg ha-1 NPK, respectivamente. E a maior produção nas raízes foi obtida respectivamente com as doses equivalente a e 80, 10 e 100 kg ha-1 de NPK. A adubação com N e K proporcionou aumento na produção da biomassa total das plantas de bambu

    CALIDAD DE LA ATENCIÓN Y SEGURIDAD DEL PACIENTE: EVALUACIÓN POR INDICADORES

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    Estudio descriptivo, trasversal, prospectivo, observacional, cuantitativo, con objeto de evaluar la calidad de la atención con indicadores relacionados a la prevención de caídas e identificación del paciente de un hospital universitario. Los datos fueron recolectados en 15 días aleatorios de los meses de agosto y septiembre del 2015, en dos unidades de un hospital del interior de Paraná-Brasil, utilizándose instrumentos previamente validados. Fue aplicado análisis estadístico descriptivo, seguido del cálculo del Índice de Positividad. Fueron efectuadas 1068 observaciones. La calidad de la atención ilustrada por los indicadores de identificación del paciente por el lecho/la pulsera y presencia de grades en el lecho para prevención de caídas fue clasificada como sufrible (0%), limítrofe (76,60%) y adecuada (95,48%), respectivamente. Se concluyó la necesidad inminente de mejoras en la identificación del paciente, lo que posiblemente podría ser viabilizado por la elección racional del método de identificación y a través delempoderamiento del enfermero con relación a la toma de decisión respecto a este indicador.Estudo descritivo, transversal, prospectivo, observacional, quantitativo, que objetivou avaliar a qualidade da assistência com indicadores relacionados à prevenção de quedas e identificação do paciente de um hospital universitário. Os dados foram coletados em 15 dias aleatórios dos meses de agosto e setembro de 2015, em duas unidades de um hospital do interior do Paraná-Brasil, utilizando-se instrumentos previamente validados. Fez-se análise estatística descritiva, seguido do cálculo do Índice de Positividade. Foram realizadas 1068 observações. A qualidade da assistência ilustrada pelos indicadores de identificação do paciente pelo leito/pulseira e presença de grades no leito à prevenção de quedas foi classificada como sofrível (0%), limítrofe (76,60%), e adequada (95,48%), respectivamente. Concluiu-se a necessidade iminente de melhorias na identificação do paciente, o que possivelmente poderia ser viabilizado pela escolha racional do método de identificação e através do empoderamento do enfermeiro em relação à tomada de decisão quanto a este indicador.Descriptive, cross-sectional, prospective, observational, quantitative study that was aimed at assessing the quality of care, using indicators related to falls prevention and patient identification at a teaching hospital. The data were collected on 15 random days in August and September 2015 at two services of a hospital in the interior of Paraná-Brazil, using previously validated tools. Descriptive statistical analysis was applied, followed by the calculation of the Positivity Ratio. In total, 1068 observations were made. The quality of care, illustrated by the indicators of patient identification by the bed/wristband and presence of bedrails to prevent fall was classified as low (0%), borderline (76.60%) and appropriate (95.48%), respectively. In conclusion, improvements in patient identification are imminently necessary, which could be made feasible by the rational choice of the identification method and through the empowerment of the nurse for decision making on this indicator

    Production of He-4 and (4) in Pb-Pb collisions at root(NN)-N-S=2.76 TeV at the LHC

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    Results on the production of He-4 and (4) nuclei in Pb-Pb collisions at root(NN)-N-S = 2.76 TeV in the rapidity range vertical bar y vertical bar <1, using the ALICE detector, are presented in this paper. The rapidity densities corresponding to 0-10% central events are found to be dN/dy4(He) = (0.8 +/- 0.4 (stat) +/- 0.3 (syst)) x 10(-6) and dN/dy4 = (1.1 +/- 0.4 (stat) +/- 0.2 (syst)) x 10(-6), respectively. This is in agreement with the statistical thermal model expectation assuming the same chemical freeze-out temperature (T-chem = 156 MeV) as for light hadrons. The measured ratio of (4)/He-4 is 1.4 +/- 0.8 (stat) +/- 0.5 (syst). (C) 2018 Published by Elsevier B.V.Peer reviewe

    Azimuthal anisotropy of charged jet production in root s(NN)=2.76 TeV Pb-Pb collisions

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    We present measurements of the azimuthal dependence of charged jet production in central and semi-central root s(NN) = 2.76 TeV Pb-Pb collisions with respect to the second harmonic event plane, quantified as nu(ch)(2) (jet). Jet finding is performed employing the anti-k(T) algorithm with a resolution parameter R = 0.2 using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy of the underlying event is taken into account event-by-event. The remaining (statistical) region-to-region fluctuations are removed on an ensemble basis by unfolding the jet spectra for different event plane orientations independently. Significant non-zero nu(ch)(2) (jet) is observed in semi-central collisions (30-50% centrality) for 20 <p(T)(ch) (jet) <90 GeV/c. The azimuthal dependence of the charged jet production is similar to the dependence observed for jets comprising both charged and neutral fragments, and compatible with measurements of the nu(2) of single charged particles at high p(T). Good agreement between the data and predictions from JEWEL, an event generator simulating parton shower evolution in the presence of a dense QCD medium, is found in semi-central collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Peer reviewe

    Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV

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    Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 2GeV/c. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B. V.Peer reviewe

    Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at root(NN)-N-S=2.76 TeV

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    Pseudorapidity and transverse-momentum distributions of charged particles in proton-proton collisions at root s=13 TeV

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    The pseudorapidity (eta) and transverse-momentum (p(T)) distributions of charged particles produced in proton-proton collisions are measured at the centre-of-mass energy root s = 13 TeV. The pseudorapidity distribution in vertical bar eta vertical bar <1.8 is reported for inelastic events and for events with at least one charged particle in vertical bar eta vertical bar <1. The pseudorapidity density of charged particles produced in the pseudorapidity region vertical bar eta vertical bar <0.5 is 5.31 +/- 0.18 and 6.46 +/- 0.19 for the two event classes, respectively. The transverse-momentum distribution of charged particles is measured in the range 0.15 <p(T) <20 GeV/c and vertical bar eta vertical bar <0.8 for events with at least one charged particle in vertical bar eta vertical bar <1. The evolution of the transverse momentum spectra of charged particles is also investigated as a function of event multiplicity. The results are compared with calculations from PYTHIA and EPOS Monte Carlo generators. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Peer reviewe

    Centrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range in Pb-Pb collisions at root s(NN)=2.76TeV

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    Elliptic flow of muons from heavy-flavour hadron decays at forward rapidity in Pb-Pb collisions at root s(NN)=2.76TeV

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    The elliptic flow, v(2), of muons from heavy-flavour hadron decays at forward rapidity (2.5 <y <4) is measured in Pb-Pb collisions at root s(NN)= 2.76TeVwith the ALICE detector at the LHC. The scalar product, two- and four-particle Q cumulants and Lee-Yang zeros methods are used. The dependence of the v(2) of muons from heavy-flavour hadron decays on the collision centrality, in the range 0-40%, and on transverse momentum, p(T), is studied in the interval 3 <p(T)<10 GeV/c. A positive v(2) is observed with the scalar product and two-particle Q cumulants in semi-central collisions (10-20% and 20-40% centrality classes) for the p(T) interval from 3 to about 5GeV/c with a significance larger than 3 sigma, based on the combination of statistical and systematic uncertainties. The v(2) magnitude tends to decrease towards more central collisions and with increasing pT. It becomes compatible with zero in the interval 6 <p(T)<10 GeV/c. The results are compared to models describing the interaction of heavy quarks and open heavy-flavour hadrons with the high-density medium formed in high-energy heavy-ion collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V.Peer reviewe
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