1,247 research outputs found

    Verbale Definitheit und der vedische Injunktiv

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    Der Artikel knüpft an Karl Hoffmanns Ergebnisse zur Funktionsbestimmung des vedischen Injunktivs an und versucht anhand ausgewählter Stellen des Rigveda zu zeigen, dass der Injunktiv nicht nur ,bekannte‘ Sachverhalte bezeichnet, sondern überhaupt die ,definite‘ Weise ist, auf Sachverhalte bezugzunehmen. Mit dieser speziellen Funktion deckt der Injunktiv eine Teilmenge der Funktionen des Indikativs ab. Da der Injunktiv morphologisch aber einfacher ist als der Indikativ, sind vorhistorische Funktionsverschiebungen anzunehmen

    A residual based a posteriori error estimator for an augmented mixed finite element method in linear elasticity

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    In this paper we develop a residual based a posteriori error analysis for an augmented mixed finite element method applied to the problem of linear elasticity in the plane. More precisely, we derive a reliable and efficient a posteriori error estimator for the case of pure Dirichlet boundary conditions. In addition, several numerical experiments confirming the theoretical properties of the estimator, and illustrating the capability of the corresponding adaptive algorithm to localize the singularities and the large stress regions of the solution, are also reporte

    Asymptotic Behavior of the Einstein-Yang-Mills-Dilaton System for a Closed Friedmann-Lemaitre Universe

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    We study the coupled Einstein-Yang-Mills-Dilaton (EYMD) equations for a Fried\-mann-Le\-mai\-tre universe with constant curvature k=1k=1. Our detailed analysis is restricted to the case where the dilaton potential and the cosmological constant vanish. Also assuming a static gauge field, we present analytical and numerical results on the behavior of solutions of the EYMD equations. For different values of the dilaton coupling constant we analyze the phase portrait for the time evolution of the dilaton field and give the behavior of the scale factor. It turns out that there are no inflationary stages in this model.Comment: 18 pages, Uuencoded gzip compressed tar file containing a latex file and 12 figures. The epsfig.sty is neede

    Squalene and amentoflavone from Antidesma laciniatum

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    Squalene, (2E, 7x,11x)-phyt-2-en-1-ol and amentoflavone have been isolated from the extract of the leaves of Antidesma laciniatum. Their structures were elucidated using spectroscopic methods. This is the first report of these compounds from Antidesma species.   KEY WORDS: Antidesma laciniatum, Euphorbiaceae, Squalene, Amentoflavone, (2E, 7x,11x)-Phyt-2-en-1-ol  Bull. Chem. Soc. Ethiop. 2006, 20(2), 325-328

    Deciding logics of linear Kripke frames with scattered end pieces

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    We show that logics based on linear Kripke frames – with or without constant domains – that have a scattered end piece are not recursively enumerable.This is done by reduction to validity in all finite classical models

    Neutrophil gelatinase-associated lipocalin (NGAL) predicts response to neoadjuvant chemotherapy and clinical outcome in primary human breast cancer

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    In our previous work we showed that NGAL, a protein involved in the regulation of proliferation and differentiation, is overexpressed in human breast cancer (BC) and predicts poor prognosis. In neoadjuvant chemotherapy (NACT) pathological complete response (pCR) is a predictor for outcome. The aim of this study was to evaluate NGAL as a predictor of response to NACT and to validate NGAL as a prognostic factor for clinical outcome in patients with primary BC. Immunohistochemistry was performed on tissue microarrays from 652 core biopsies from BC patients, who underwent NACT in the GeparTrio trial. NGAL expression and intensity was evaluated separately. NGAL was detected in 42.2% of the breast carcinomas in the cytoplasm. NGAL expression correlated with negative hormone receptor (HR) status, but not with other baseline parameters. NGAL expression did not correlate with pCR in the full population, however, NGAL expression and staining intensity were significantly associated with higher pCR rates in patients with positive HR status. In addition, strong NGAL expression correlated with higher pCR rates in node negative patients, patients with histological grade 1 or 2 tumors and a tumor size <40 mm. In univariate survival analysis, positive NGAL expression and strong staining intensity correlated with decreased disease-free survival (DFS) in the entire cohort and different subgroups, including HR positive patients. Similar correlations were found for intense staining and decreased overall survival (OS). In multivariate analysis, NGAL expression remained an independent prognostic factor for DFS. The results show that in low-risk subgroups, NGAL was found to be a predictive marker for pCR after NACT. Furthermore, NGAL could be validated as an independent prognostic factor for decreased DFS in primary human BC

    Применение дисперсионного анализа для исследования свойств промышленных наночастиц никеля

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    В работе были разработаны методики дисперсионного анализа нанопорошков в водных суспензиях разной концентрации для определения влияния абиотических факторов на агрегативную устойчивость наночастиц.The methods of dispersion analysis of nanopowders in aqueous suspensions of different concentrations were developed to determine the effect of abiotic factors on the aggregate stability of nanoparticles
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