نتایج جستجو برای: 49 and 44
تعداد نتایج: 16850993 فیلتر نتایج به سال:
BACKGROUND This study was designed to determine the optimal anesthetic depth for the maintenance and recovery in interventional neuroradiology. METHODS Eighty-eight patients undergoing interventional neuroradiology were randomly allocated to light anesthesia (n = 44) or deep anesthesia (n = 44) groups based on the value of the bispectral index (BIS). Anesthesia was induced with propofol, alfe...
Physics of Life Reviews ••• (••••) •••–••• www.elsevier.com/locate/plrev 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 Comment A sadness-independent ...
Geometric data summarization has become an essential tool in both geometric approximation algorithms and where geometry intersects with big data problems. In linear or near-linear time large data sets can be compressed into a summary, and then more intricate algorithms can be run on the summaries whose results approximate those of the full data set. Coresets and sketches are the two most import...
.................................................................................................................................. iii ACKNOWLEDGEMENTS ............................................................................................................. v DEDICATION .............................................................................................................................
In the title compound, [Fe(C(5)H(5))(C(15)H(16)NO)], the two cyclo-penta-dienyl (Cp) rings are nearly parallel to each other, forming a dihedral angle of 3.7 (1)°, and adopt a staggered conformation. The amide group is almost perpendicular to the plane of the substituted Cp ring, with a C-N-C-C torsion angle of 101.3 (2)°, and the N and O atoms in the ethanoyl group are coplanar, with a C-N-C-O...
A new method for determining the temperature calibration function for a high-temperature X-ray diffraction stage is described. This method utilizes the relative thermal expansion of two diffraction peaks, either for peaks from a mixture of phases, or from a single phase that has anisotropic thermal expansion. A calibration function is derived from data at many temperatures and collected over a ...
— — — — — — — — — — 3:36A 3:42A 3:58A 4:08A — 3:53A 3:55A 3:57A 3:59A 4:02A 4:05A 4:07A 4:09A 4:11A 4:13 4:16 4:21 4:25 — 4:21 4:23 4:25 4:27 4:30 4:33 4:35 4:37 4:39 4:41 4:44 4:49 4:53 4:31A 4:33 4:35 4:37 4:39 4:42 4:45 4:47 4:49 4:51 5:00 5:03 5:08 5:12 4:50 4:52 4:54 4:56 4:58 5:01 5:04 5:06 5:08 5:10 5:12 5:15 5:20 5:24 5:03 5:05 5:07 5:09 5:11 5:14 5:17 5:19 5:21 5:23 5:25 5:28 5:33 5:37...
In the crystal structure of the title compound, [Fe(C(5)H(5))(C(21)H(22)OP)], the cyclo-penta-dienyl (Cp) rings are almost parallel and are essentially eclipsed. The absolute configuration was determined as S for the planar and R for the central chirality.
The crystal structure of [3]ferrocenophan-1-one, [Fe(C(13)H(12)O)], has been redetermined at 150 K. The tethered cyclo-penta-dienyl (Cp) rings are tilted by 9.39 (18)° and assume an eclipsed conformation. The 1-oxopropane-1,3-diyl bridge has a pseudo-envelope conformation with the C=O group deviating by as much as 22.5 (2)° from coplanarity with its attached Cp ring.
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