نتایج جستجو برای: 044 and 043
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BACKGROUND AND PURPOSE The risk factors of early hemorrhagic complications after endovascular coiling are not well-known. We identified the factors affecting early hemorrhagic complications, defined as any expansion or appearance of hemorrhage shown by head CT in the initial 48 hours after coiling. MATERIALS AND METHODS We retrospectively reviewed a series of 93 patients who underwent coiling...
The nucleophilic dimethoxycarbene (DMC; 2) generated by thermal decomposition of 2,5dihydro-1,3,4-oxadiazole derivative 1 in boiling toluene reacts smoothly with N-(9H-fluoren-9-ylidene)-4methylbenzenesulfonamide (7b) to yield carbonimidoate derivative 10. A multi-step reaction pathway, initiated by the attack of DMC onto the C=N bond and followed by the migration of the sulfonyl group (or via ...
IR spectra of 0.3 m aqueous solutions of Mgo.5K3_ nHw ATP were plotted. The dependence of the spectra on the hydrolysis was investigated for three different K/H ratios of the nonhydrolysed system. Changes to bands provide information as to the protons added to the phosphate groups and base residues as a function of the initial protonation and degree of hydrolysis. More and more proton addition ...
An abundance analysis for the carbon-enhanced, extremely iron-poor (1⁄2Fe=H 3:5) star CS 29498-043 has been obtained using new high-resolution, high signal-to-noise ratio spectra from the Subaru Telescope. The [O i] forbidden line at 6300 8 and the O i triplet feature at 7771–7776 8 are both clearly detected. The overabundance of oxygen is significant (1⁄2O=Fe > 2). In addition, Na, Co, and Ni ...
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