Continuous intraoperative monitoring was performed with standard ASA monitors and a ten-lead portable electroencephalography monitor. Real-time electroencephalographic monitoring was performed by an attending-level neurophysiologist.

Results: All patients violated at least one recommended limit for blood pressure reduction. The average decrease in MCC950 price systolic blood pressure and mean arterial pressure from baseline was 36% and 42%, respectively. Three patients demonstrated ischemic

changes on electroencephalography that resolved with an increase in blood pressure. No adverse neurological sequelae were observed in any patient on the basis of the MMSE.

Conclusions: This study provides the first prospective data on global cerebral

perfusion during shoulder arthroscopy in the beach-chair position with use of controlled hypotension. Our study suggests that patients may be able to safely tolerate a reduction in blood pressure greater than current recommendations. In the future, intraoperative cerebral monitoring may play FRAX597 order a role in preventing neurological injury in patients undergoing shoulder arthroscopy in the beach-chair position.”
“The solid phase epitaxy of an amorphous layer on crystalline silicon is studied by means of molecular dynamics. Three stacks of 5120, 4928, and 5184 atoms respectively oriented along the [100], [110], and [111] directions are annealed with the Tersoff interatomic potential. The regrowth proceeds via the motion of a planar interface for [100], the formation of facets for [110], and the crystallization within [111] bilayers for the third case. In the absence of learn more crystallization defects, the velocities of regrowth are similar for [100] and [110] and two to five times lower for [111]. Moreover, defects were obtained in 8% of the cases along [100], 19% of the cases along [110], and 52% of the cases along [111]

with a systematic formation of one or more twins in the last case. The results are confronted with a schematic model of the solid phase epitaxy. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3211972]“
“We have investigated the spin dynamics of a sputtered Co thin film using our broadband ferromagnetic resonance (FMR) spectrometer. From FMR spectra taken at frequencies of 4-20 GHz, we found that our Co film has a g-factor of 2.25 and a Gilbert damping factor of 4.5 x 10(8) s(-1), indicating an enhanced spin-orbit interaction compared to bulk material or epitaxial films. Besides the normal FMR mode in the saturated state, we also observed the evolution of the low-field hysteretic behavior in the unsaturated state, which affects the FMR mode as the excitation frequency is lowered from 5.000 to 1.636 GHz. We found that the microwave absorption process persists in the unsaturated state for frequencies higher than 1.868 GHz such that the absorption minima occur at 12 Oe on a down- fieldsweep and at +12 Oe on a up-field sweep, respectively. (C) 2009 American Institute of Physics.