نتایج جستجو برای: n20
تعداد نتایج: 393 فیلتر نتایج به سال:
s excluded as irrelevant (n = 1320) Full text paper obtained for further review (n = 164) 99 studies further excluded: • • • • • • • No astragalus involved in TCM treatment (n = 54) Not all subjects received astragalus-based TCM (n = 8) No platinum included in the chemotherapy or chemotherapy combined with radiotherapy (n = 10) No usable endpoints were included (n = 16) Not a controlled trial (...
PECVD Phosphorus-doped silicon oxynitride layers (n=1.5) were depositedfrom N20, 2%SiHdN2, NH3 and 5%PH3/Ar gaseous mixtures. Chemical bonds were determined by Fourier transform infrared spectrosco y N H bond concentration of the layers decreased from 3.29 X I @' to 0.45 x l & r ~ m ' 3 ~ a s the 5%PH3/Rr jlow rate increased from 0 to 60 sccm. A simultaneous decrease of 0 H related bonds was al...
During the Arctic Airborne Stratospheric Expedition, simultaneous measurements of aerosol size distribution and NOy (HNO 3+ NO + NO 2 + 2.N20 5) were made along ER-2 flight paths. The flow characteristics of the NOy instrument allow us to derive the condensed NOy amount (assumed tobe HNO3) present during polar stratospheric cloud (PSC) events. Analysis of the January 24th flight indicates that ...
A miniature flexible fiberoptic bronchoscope (FFB) (Olympus BF-N20) (2.2 mm diameter) was applied to 53 children (20 female subjects) ranging in age from 3 months to 15 years (mean, 4.19 years). Most common indications for bronchoscopy included stridor or weak cry and persistent wheezing or cough unresponsive to inhaled bronchodilators, chest physiotherapy, steroids, and antimicrobial agents. T...
Several markers have been studied for their ability to make the CNS infiltration diagnosis earlier and more precise; previous studies showed that CSF ferritin concentrations were higher in patients with malignant invasion of CNS. The objective was to determine the importance of CSF ferritin as a biomarker for the diagnosis of CNS neoplastic infiltration. This study is based on 93 CSF samples, d...
Motivated by Yung and Miller's [199• suggestion that N20 is isotopically fractionated during UV photolysis in the stratosphere, we have studied the photolysis rates of the •4N•SN•60 and •SN•4N•60 structural isotopomers. In this study, we follow the concentrations of these compounds with FTIR spectroscopy during photolysis at 213 nm. When fitted to a Rayleigh fractionation model, the observation...
The yields of 2-deoxy-D-gluconic, D-gluconic and other sugar acids from 6 0 Co-gamma irradiated (dose rate = 4 Krads/min) D-glucose solutions are reported. The acids produced upon radiolyses were separated from glucose and neutral products by anion exchange, assayed by gas chromatography of the trimethylsilyl derivatives, and definitive identification made by mass spectrometry. In He degassed, ...
Using large samples of estate tax returns, we construct new series on wealth concentration in Paris and France from 1807 to 1994. Inequality increased until 1914 because industrial and financial estates grew dramatically. Then, adverse shocks, rather than a Kuznets-type process, led to a massive decline in inequality. The very high wealth concentration prior to 1914 benefited retired individual...
The views expressed in this Working Paper are those of the author(s) and do not necessarily represent those of the IMF or IMF policy. Working Papers describe research in progress by the author(s) and are published to elicit comments and to further debate. This paper analyzes the Corporation of Foreign Bondholders (CFB), an association of British investors holding bonds issued by foreign governm...
Oxygen free N20-saturated aqueous solutions of D-fructose-1-phosphate and Dfructose-6-phosphate were y-irradiated. Inorganic phosphate and phosphate free sugars (containing four to six carbon atoms) were identified and their G-values measured. D-Fructose-1-phosphate yields (G-values in parentheses) inorganic phosphate (1.6), hexos-2-ulose (0.12), 6-deoxy-2,5-hexodiulose (0.16), tetrulose (0.05)...
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