570 resultados para 1368


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"FEMA-1368-DR-IL"

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Double leaves, oriental style, in case.

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"Les lamentacions et les épistres de Pierre Salmon": p.[41]-167.

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Mode of access: Internet.

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Publisher's advertisements: final leaf.

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[v.v. [1] 1327-1330 -- v. [2] 1330-1333 -- v. [3] 1333-1337 -- v. [4] 1337-1339 -- v. [5] 1339-1341 -- v. 6. 1341-1343 -- v. 7. 1343-1346 -- v. 8. 1346-1349 -- v. 9. 1349-1354 -- v. 10. 1354-1360 -- v. 11. 1360-1364 -- v. 12 1364-1368 -- v. 13. 1369-1374. -- v. 14. 1374-1377.

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At head of alternate title: Acta Austriae inferioris.

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Title and imprint vary.

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Thirty-nine trace elements of the Song-Yuan period (960-1368 AD) porcelain bodies from Cizhou, Jizhou and Longquanwu kilns were analyzed with ICP-MS, a technique rarely used in Chinese archaeometry, to investigate its potential application in such studies. Trace element compositions clearly reflect the distinctive raw materials and their mineralogy at the three kilns and allow their products to be distinguished. Significant chemical variations are also observed between Yuan and Song-Jing dynasties samples from Cizhou as well as fine and coarse porcelain bodies from Longquanwu. In Cizhou, porcelains of better quality which imitate the famous Ding kiln have trace element features distinctive from ordinary Cizhou products, that indicates geochemically distinctive raw materials were used and which possibly also underwent extra refining prior to use. The distinct trace element features of different kilns and the various types of porcelains from an individual kiln can be interpreted from a geochemical perspective. ICP-MS can provide a large amount of valuable information about ancient Chinese ceramics as it is capable of analyzing >40 elements with a typical of precision < 2%.

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O presente estudo buscou investigar o impacto da resiliência e da autoeficácia sobre o burnout em profissionais de enfermagem. O constructo resiliência no contexto do trabalho refere-se a capacidade de adaptação de forma positiva frente às adversidades que ocorrem no ambiente laboral. A autoeficácia no trabalho representa a percepção do indivíduo sobre as suas próprias competências na execução de tarefas. Já o burnout é compreendido como uma síndrome específica do meio laboral como consequência da cronificação do estresse ocupacional, apresentando três dimensões: a exaustão, o cinismo (despersonalização) e a baixa realização profissional. A amostra da pesquisa foi composta por 82 trabalhadores da área de enfermagem que trabalham em Unidades de Pronto Atendimento UPA s localizadas no estado do Acre. A maior parte dos participantes é do sexo feminino (78%), com idade média de 31 anos (DP=6,8). Para a mensuração das variáveis foram utilizadas a Escala de Resiliência no Trabalho, a Escala de Autoeficácia no Trabalho e a Escala de Caracterização do Burnout, e para coletar os dados sociodemográficos foi aplicado um questionário de autorresposta construído para este estudo. Os dados foram submetidos a análises exploratórias e descritivas, análise de variância (ANOVA), análise de correlação de Pearson e regressão linear múltipla padrão. Os resultados indicaram que os profissionais de enfermagem apresentaram níveis médios de resiliência, autoeficácia e dos componentes exaustão e baixa realização profissional do burnout; e, por sua vez, baixo nível de despersonalização. Constatou-se também correlação entre autoeficácia com dois dos três fatores do burnout: exaustão emocional e decepção no trabalho. Os achados ainda revelaram que resiliência e autoeficácia conjuntamente predizem significativamente ambos os fatores de burnout, exaustão e decepção. No entanto, a variável responsável por esta explicação foi autoeficácia no trabalho, pois apenas ela foi estatisticamente significante para explicar os dois componentes do burnout relatados. Conclui-se que os profissionais que apresentam maior autoeficácia são os que menos sucumbem ao burnout, essa síndrome tão devastadora que ataca de maneira impiedosa os profissionais que lidam no atendimento às pessoas.

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1. The responses of the electrically stimulated guinea-pig ileum and vas deferens to human and rat calcitonin gene-related peptide (CGRP) and amylin were investigated. 2. The inhibition of contraction of the ileum produced by human alpha CGRP was antagonized by human alpha CGRP8-37 (apparent pA2 estimated at 7.15 +/- 0.23) > human alpha CGRP19-37 (apparent pA2 estimated as 6.67 +/- 0.33) > [Tyr0]-human alpha CGRP28-37. The amylin antagonist, AC187, was three fold less potent than CGRP8-37 in antagonizing human alpha CGRP. 3. Both human beta- and rat alpha CGRP inhibited contractions of the ileum, but this was less sensitive to inhibition by CGRP8-37 than the effect of human alpha CGRP. However, CGRP19-37 was twenty times more effective in inhibiting the response to rat alpha CGRP (apparent pA2 estimated as 8.0 +/- 0.1) compared to human alpha CGRP. 4. Rat amylin inhibited contractions in about 10% of ileal preparations; this effect was not antagonized by any CGRP fragment. Human amylin had no action on this preparation. 5. Both human and rat alpha CGRP inhibited electrically stimulated contractions of the vas deferens, which were not antagonized by 3 microM CGRP8-37 or 10 microM AC187. 6. Rat amylin inhibited the stimulated contractions of the vas deferens (EC50 = 77 +/- 9 nM); human amylin was less potent (EC50 = 213 +/- 22 nM). The response to rat amylin was antagonized by 10 microM CGRP8-37 (EC50 = 242 +/- 25 nM) and 10 microM AC187 (EC50 = 610 +/- 22 nM). 7. It is concluded that human alpha CGRP relaxes the guinea-pig ileum via CGRP1-like receptors, but that human beta CGRP and rat alpha CGRP may use additional receptors. These are distinct CGRP2-like and amylin receptors on guinea-pig vas deferens.

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This paper presents a general methodology for estimating and incorporating uncertainty in the controller and forward models for noisy nonlinear control problems. Conditional distribution modeling in a neural network context is used to estimate uncertainty around the prediction of neural network outputs. The developed methodology circumvents the dynamic programming problem by using the predicted neural network uncertainty to localize the possible control solutions to consider. A nonlinear multivariable system with different delays between the input-output pairs is used to demonstrate the successful application of the developed control algorithm. The proposed method is suitable for redundant control systems and allows us to model strongly non Gaussian distributions of control signal as well as processes with hysteresis.

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Robust, bifunctional catalysts comprising Rh(CO)(Xantphos) exchanged phosphotungstic acids of general formulas [Rh(CO)(Xantphos)]+n[H3–nPW12O40]n− have been synthesized over silica supports which exhibit tunable activity and selectivity toward direct vapor phase methanol carbonylation. The optimal Rh:acid ratio = 0.5, with higher rhodium concentrations increasing the selectivity to methyl acetate over dimethyl ether at the expense of lower acidity and poor activity. On-stream deactivation above 200 °C reflects Rh decomplexation and reduction to Rh metal, in conjunction with catalyst dehydration and loss of solid acidity because of undesired methyl acetate hydrolysis, but can be alleviated by water addition and lower temperature operation.

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Objective- Increased reactive oxygen species (ROS) production is involved in the pathophysiology of endothelial dysfunction. NADPH oxidase-4 (Nox4) is a ROS-generating enzyme expressed in the endothelium, levels of which increase in pathological settings. Recent studies indicate that it generates predominantly hydrogen peroxide (H O ), but its role in vivo remains unclear. Methods and Results- We generated transgenic mice with endothelium-targeted Nox4 overexpression (Tg) to study the in vivo role of Nox4. Tg demonstrated significantly greater acetylcholine- or histamine-induced vasodilatation than wild-type littermates. This resulted from increased H O production and H O -induced hyperpolarization but not altered nitric oxide bioactivity. Tg had lower systemic blood pressure than wild-type littermates, which was normalized by antioxidants. Conclusion- Endothelial Nox4 exerts potentially beneficial effects on vasodilator function and blood pressure that are attributable to H O production. These effects contrast markedly with those reported for Nox1 and Nox2, which involve superoxide-mediated inactivation of nitric oxide. Our results suggest that therapeutic strategies to modulate ROS production in vascular disease may need to separately target individual Nox isoforms. © 2011 American Heart Association, Inc.