63,680 research outputs found

    Naples et Pompeii nell'Encyclopédie

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    The entries “Naples”, “Herculanum”, “Pompeii” in the Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers (1751-1772) are of different lengths and depths. These are entries that on the one hand report some of the effects of the archeolo gical discoveries which amaze Europe during those years, while on the other they impose themselves as testimonies of some explanatory techniques (and of some imperfections) which are typical of the ripest “encyclopedism”. Their author De Jaucourt carries out a d edicated and significant work of construction and divulgation and he brings to the attention of the subscribers of the Encyclopédie the treasures at the core of the Vesuvius land

    A survey of parallel direct methods for block bidiagonal linear systems on distributed memory computers

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    AbstractFour parallel algorithms for the solution of block bidiagonal linear systems on distributed memory computers are presented. All the algorithms belong to the class of direct methods. The first is a variant of the sequential algorithm and is suitable for a small number of processors. The remaining three algorithms are based on the parallel methods for banded systems and are much better suited for parallel computations on multiple processors. The arithmetical complexity functions of the proposed algorithms are derived. The results of experiments with the four algorithms implemented in Parallel Fortran on a linear array of 32 Transputers are presented and discussed

    Effects of defibrotide on renal function and urinary prostanoid excretion in ciclosporin-treated rats

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    Defibrotide (DF) has been proposed as a new antithrombotic agent in renal transplantation. Because it was also found to increase prostacyclin synthesis, a reduction in ciclosporin (CS) nephrotoxicity could be supposed. To ascertain this hypothesis, renal function and urinary prostanoids were evaluated in four groups of rats after 10 days of oral treatment (doses in mg/kg/day): CS 50 (group A), CS 50 + DF 400 (group B), DF 400 (group C) and controls (group D). Compared to controls, creatinine clearance (CCR) was significantly lower in groups A and B (In CCr: A = 6.62 +/- 0.28, B = 6.83 +/- 0.24 vs. 8.17 +/- 0.13 microliters/min, p less than 0.01), whereas it did not change in group C (8.03 +/- 0.24 microliters/min). The urinary excretion of prostaglandin E2 (PGE2) was significantly (p less than 0.05) higher in group A (In PGE2: 3.98 +/- 0.98 nmol/mol Cr) and more evidently in groups B and C (6.89 +/- 0.38 and 6.01 +/- 0.32 nmol/mol Cr, respectively) compared to controls (1.43 +/- 0.45 nmol/mol Cr). The urinary excretion of 6-keto-PGF1 alpha and of thromboxane B2 (TxB2) were higher only in groups A and B (ln 6-keto-PGF1 alpha and ln TxB2: A = 6.45 +/- 0.22 and 4.97 +/- 0.20, B = 7.06 +/- 0.31 and 5.43 +/- 0.41 vs. group D = 5.53 +/- 0.22 and 3.79 +/- 0.42 nmol/mol Cr; p less than 0.05). The 6-keto-PGF1 alpha/Tx molar ratio was not significantly affected, although a trend for a reduction in the ratio was found in the treated rats.(ABSTRACT TRUNCATED AT 250 WORDS

    Parallel solution of Almost Block Diagonal systems on a Hypercube

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    AbstractA new tearing-type approach toward the solution of Almost Block Diagonal Systems on distributed memory parallel computers is presented. Its arithmetical complexity is examined and compared with other existing approaches

    Supplemental_Table_1_Participant_demographics – Supplemental material for Women’s Gendered Experiences of Traumatic Brain Injury

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    Supplemental material, Supplemental_Table_1_Participant_demographics for Women’s Gendered Experiences of Traumatic Brain Injury by Alexis M. Fabricius, Andrea D’Souza, Vanessa Amodio, Angela Colantonio and Tatyana Mollayeva in Qualitative Health Research</p

    SPPS707020_suppl_mat - Essentialism Promotes Racial Prejudice by Increasing Endorsement of Social Hierarchies

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    SPPS707020_suppl_mat for Essentialism Promotes Racial Prejudice by Increasing Endorsement of Social Hierarchies by Tara M. Mandalaywala, David M. Amodio, and Marjorie Rhodes in Social Psychological and Personality Science</p
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