561 research outputs found
Cardiac index assessment by the pressure recording analytic method in critically ill unstable patients after cardiac surgery
No full textAnesthesia Management During Cardiopulmonary Bypass: Volatile vs. Intravenous Drugs
No full textAnesthetic management during cardiopulmonary bypass (CPB) is challenging in many aspects. Evidence of mortality reduction due to the use of volatile agents during cardiac surgery has led to their increased use in CPB. Partly because of the difficulty to administer volatile agents during CPB, total intravenous anesthesia (TIVA) has become the most popular technique used by cardiac anesthetists throughout this critical period. The aim of this review is to provide an overview of volatile agents’ administration to ensure maintenance of adequate depth of anesthesia during CPB and weighting risks and benefits of this technique compared to TIVA
Effective Integrability of Lins Neto\u27s Family of Foliations
No full textA. Lins Neto presented in [Lins-Neto,2002] a -dimensional family of degree four foliations on the complex projective plane with non-degenerate singularities of fixed analytic type, whose set of parameters for which is an elliptic pencil is dense and countable. In [McQuillan,2001] and [Guillot,2002], M. McQuillan and A. Guillot showed that the family lifts to linear foliations on the abelian surface , where , and is a primitive 3rd root of unity, the parameters for which are elliptic pencils being . In [Puchuri,2013], the second author gave a closed formula for the degree of the elliptic curves of a function of . In this work we determine degree, positions and multiplicities of singularities of the elliptic curves of , for any given in algorithmical way implemented in Python. And also we obtain the explicit expressions for the generators of the elliptic pencils, using the Singular software. Our constructions depend on the effect of quadratic Cremona maps on the family of foliations .21 pages, 7 figure
As confer?ncias c?vicas e o livro de leitura Terra Ga?cha : as aspira??es nacionalistas de Jo?o Sim?es Lopes Neto (1865-1916)
No full textMade available in DSpace on 2015-04-14T13:48:21Z (GMT). No. of bitstreams: 1
467137.pdf: 936811 bytes, checksum: 4e9e634ce4210eb116c751213b5e98b2 (MD5)
Previous issue date: 2015-01-20This dissertation will analyze the Confer?ncias C?vicas (1904-1906) and the spelling book Terra Ga?cha (2013), both by Jo?o Sim?es Lopes Neto. On this basis, we intend to comprehend how the author has organized and expressed his ideas concerning the Brazilian nation, what were his inspirations and the lines of thought that most influenced him. With this in mind, this research aims to increase the understanding about Lopes Neto and his work. In other words, the objective is to understand him not only as a regionalist writer but as an intellectual who, from your region, thought about the Brazilian nation. This expansion of perspective about Lopes Neto contributes to a better understanding of the author and his work. When thinking about the Brazilian nation, Lopes Neto realized the lack of a civic education able to awaken in people "the spirit of the nation". Trying to solve this problem the author created a complex narrative in order to pay attention to the virtues and vices of the Brazilian nation, its different regions and cultures. For example, the spelling book would be a tool for teaching in Rio Grande do Sul. So it has special focus on the gaucho culture and tries to demonstrate that the various regions form the nation.A presente disserta??o tem como objetivo analisar as Confer?ncias C?vicas (1904-1906) e o livro de leitura Terra Ga?cha (2013), ambos de Jo?o Sim?es Lopes Neto. Com base nessa an?lise visamos compreender como o autor organizou e exprimiu suas ideias acerca da tem?tica da na??o brasileira, quais foram as suas inspira??es e as correntes de pensamento que mais o influenciaram. Isto posto, esta pesquisa visa alargar o campo de compreens?o no que se refere ? Jo?o Sim?es Lopes Neto e sua obra, pois o objetivo ? compreend?-lo como um intelectual que a partir de sua regi?o refletiu sobre a na??o brasileira, e n?o apenas como um escritor regionalista, plano ao qual ficou relegado. Esse alargamento da perspectiva acerca do autor colabora para uma melhor compreens?o do mesmo e de sua obra, pois Jo?o Sim?es Lopes Neto ao refletir sobre a na??o brasileira percebeu a falta de uma educa??o c?vica capaz de despertar nas pessoas o esp?rito da na??o. Para tentar resolver esse problema o autor criou uma narrativa complexa de identifica??o, visando atentar para as virtudes e v?cios da na??o brasileira, as suas diversas regi?es e culturas. O livro de leitura, por exemplo, tendo em vista que seria um instrumento para o ensino no Rio Grande do Sul, conta com um enfoque especial na cultura ga?cha, buscando demonstrar que as diversas regi?es s?o formadoras da na??o
Closed-form solutions for the analysis of artificial dielectric layers under generic field incidence
No full textWe present an analytical method to model artificial dielectric layers (ADLs) of finite height. Starting from the closed-form solution for the scattering from a single layer under plane wave illumination, the formulation is extended to the multi-layer case, by including the higher-order interaction between parallel layers in analytical form. The method can be used to describe the radiation of a source located in the close proximity of the ADL. Experimental data obtained from a prototype demonstrator are presented and show a good agreement with the results of the theoretical analysis.Accepted author manuscriptTera-Hertz Sensin
Tricks, tips, and literature review on the adapted vaporize system to deliver volatile agents during cardiopulmonary bypass
No full textBACKGROUND: Recently, evidence of cardio-protection and reduction in mortality due to the use of volatile agents during cardiac surgery led to an increase in their use during cardiopulmonary bypass (CPB). These findings seem to be enhanced when the volatile agents are used during all the surgical procedure, including the CPB period.AIMS: Since the administration of volatile agents through CPB can be beneficial to the patients, we decided to review the use of volatile agents vaporized in the CPB circuit and to summarize some tricks and tips of this technique using our 10-year experience of Brazilian and Italian centers with a large volume of cardiac surgeries.STUDY SETTING: Hospital.METHODS: A literature review.RESULTS: During the use of the volatile agents in CPB, it is very important to analyze all gases that come in and go out of the membrane oxygenators. The proper monitoring of inhaled and exhaled fraction of the gas allows not only monitoring of anesthesia level, but also the detection of possible leakage in the circuit. Any volatile agent in the membrane oxygenator is supposed to pollute the operating theater. This is the major reason why proper scavenging systems are always necessary when this technique is used.CONCLUSION: While waiting for industry upgrades, we recommend that volatile agents should be used during CPB only by skilled perfusionists and physicians with the aim to reduce postoperative morbidity and mortality
Anaesthetic drugs and survival: a Bayesian network meta-analysis of randomized trials in cardiac surgery
No full textSevilha andando, com “A sevilhana que não se sabia” / Sevilha andando, with “A sevilhana que não se sabia”
No full textResumo: Em 1987, quando foi publicada a coleção de poemas de João Cabral de Melo Neto intitulada Crime na Calle Relator, “A sevilhana que não se sabia” era o segundo na ordem de exposição, logo após o poema homônimo ao livro. Aquele poema foi reproduzido como o primeiro da coleção seguinte do autor, intitulada Sevilha andando (1989), ao passo que deixou de figurar nas reedições do livro em que constara de início. Assim, o poema que era de um livro passou a compor outro, exclusivamente, por iniciativa do próprio autor, para quem importava a constituição do artefato estético que o livro vem a ser. Este traço diferencial na trajetória do autor incide retrospectivamente sobre toda sua obra, a partir desse evento marcante que interfere na compreensão do que constitui um livro, seja sua publicação ou a reunião de poemas que demanda uma apreciação particularizada, de caso a caso, dos poemas entrelaçados entre si. Acompanhando a repercussão do poema no contexto da obra poética em pauta, será feito um cotejo entre as edições disponíveis dos volumes implicados para se chegar a uma compreensão mais palpável do poema, perspectivado ao longo daquela produção poética.Palavras-chave: poesia brasileira moderna; João Cabral de Melo Neto; estilo; editoração.Abstract: In 1987, when the João Cabral de Melo Neto’s collection of poems was published under the title of Crime in Calle Relator (1987), “A sevilhana que não se sabia” was the second in the order of exhibition, shortly after the poem of the same name to the book. That poem was reproduced as the first of the author’s next collection, titled Sevilha andando (1989), while it ceased to appear in the reissues of the book in which it was initially listed. Thus, the poem that was from one book began to compose another, exclusively, at the initiative of the author himself, for whom it mattered the constitution of the aesthetic artifact that the book comes to be. This differential trait in the author’s trajectory focuses retrospectively on all his work, from this remarkable event that interferes with the understanding of what constitutes a book, be it its publication or the meeting of poems that demands an appreciation particularized, on a case-by-case basis, of the poems intertwined with each other. Following the repercussion of the poem in the context of the poetic work, it will be made a comparison between the available editions of the volumes involved, to reach a more palpable understanding of the poem, perspectived throughout that poetic production.Keywords: modern Brazilian poetry; João Cabral de Melo Neto; style; publishing
MALDI-TOF MS characterization of proanthocyanidins from cranberry fruit (Vaccinium macrocarpon) that inhibit tumor cell growth and matrix metalloproteinase expression in vitro
No full textProanthocyanidin-rich extracts were prepared by fractionation of the fruit of the North American cranberry (Vaccinium macrocarpon). In vitro growth inhibition assays in eight tumor cell lines showed that selected fractions inhibited the growth of H460 lung tumors, HT-29 colon and K562 leukemia cells at GI(50) values ranging from 20 to 80 mu g ml(-1). Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) of one of these fractions found it to be composed of polyflavan-3-ols, which are primarily tetramers through heptamers of epicatechin containing one or two A-type linkages. Whole cranberry extract and the proanthocyanidin fractions were screened for effect on the expression of matrix metalloproteinases in DU 145 prostate carcinoma cells. The expression of MMP-2 and MMP-9 was inhibited in response to whole cranberry extract and to a lesser degree by the proanthocyanidin fractions. (c) 2005 Society of Chemical Industry.PT: J; CR: BOMSER J, 1996, PLANTA MED, V62, P212 CHA HJ, 1996, CANCER RES, V56, P2281 CHA HJ, 1998, ONCOGENE, V16, P771 FERGUSON PJ, 2004, J NUTR, V134, P1529 FOO LY, 2000, J NAT PROD, V63, P1225 GUTHRIE N, 2000, P EXP BIOL C SAN DIE HOWELL AB, 1998, NEW ENGL J MED, V339, P1085 HOWELL AB, 2002, CRIT REV FOOD SCI S, V42, P273 KANDIL FE, 2002, J AGR FOOD CHEM, V50, P1063 KOLODZIEJ H, 1995, PHYTOTHER RES, V9, P410 KRUEGER CG, 2000, J AGR FOOD CHEM, V48, P1663 KRUEGER CG, 2003, J AGR FOOD CHEM, V51, P538 MORROW DMP, 2001, MUTAT RES-FUND MOL M, V480, P269 MURPHY BT, 2003, J AGR FOOD CHEM, V51, P3541 NETO CC, 2005, S SERIES PHENOLICS F, P271 PORTER ML, 2001, J SCI FOOD AGR, V81, P1306 PUPA SM, 2002, J CELL PHYSIOL, V192, P259 SAMUEL SK, 1992, EMBO J, V11, P1599 SEERAM NP, 2004, J AGR FOOD CHEM, V52, P2512 SKEHAN P, 1990, J NATL CANCER I, V82, P1107 VAYALIL PK, 2004, CARCINOGENESIS, V25, P987 VINSON JA, 2001, J AGR FOOD CHEM, V49, P5315 YAN X, 2002, J AGR FOOD CHEM, V20, P5844 YE X, 1999, MOL CELL BIOCHEM, V196, P99 ZHAO J, 1999, CARCINOGENESIS, V20, P1737; NR: 25; TC: 2; J9: J SCI FOOD AGR; PG: 8; GA: 994DQSource type: Prin
An Analysis of Author Contribution Patterns in Eclipse Foundation Project Source Code
No full textPart 1: PapersInternational audienceCollaborative development is a key tenet of open source software, but if not properly understood and managed, it can become a liability. We examine author contribution data for the newest revision of 251,633 Java source files in 592 Eclipse projects. We use this observational data to analyze collaboration patterns within files, and to explore relationships between file size, author count, and code authorship. We calculate author entropy to characterize the contributions of multiple authors to a given file, with an eye toward understanding the degree of collaboration and the most common interaction patterns
- …
