Both a theoretical model and finite element simulations were developed and compared to experimental data achieved by optical profilometry on bent Si crystals. A

quantifier of the extent of AD, namely the ratio between primary and secondary curvature radii, has been found to be orientation dependent and determined analytically. The realistic case of crystal bending by a mechanical holder has been studied for applications. We addressed the case of the holder with a crystal at the energy currently under operation in the CERN super proton synchrotron and its possible extension to higher energy cases such as for the large hadron collider. Anisotropy-driven GDC-0994 ic50 torsion of the crystal was investigated, determining a limitation to the portion of Akt inhibitor the crystal suitable for channeling. The geometry of the jaws clamping the crystal was considered too. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3372722]“
“Background and Objectives: Peritoneal dialysis catheter (PDC)

complications are an important barrier to peritoneal dialysis (PD) utilization. Practice guidelines for PDC placement exist, but it is unknown if these recommendations are followed. We performed a quality improvement study to investigate this issue.

Methods: A prospective observational study involving 46 new patients at a regional US PD center was performed in collaboration with a nephrology fellowship program. Patients completed a questionnaire derived from the International Society for Peritoneal Dialysis (ISPD) catheter guidelines and were followed for early complications.

Results: Approximately 30% of patients reported not being evaluated for hernias, not being asked to visualize their exit site, or not receiving catheter location marking before placement. After insertion, 20% of patients reported not being given instructions for follow-up care, and 46% reported not being taught the warning signs of PDC infection. Directions to manage constipation (57%), immobilize the PDC (68%), or leave the dressing undisturbed (61%)

after insertion were not consistently reported. Nearly 40% of patients reported that their PDC education was inadequate. In 41% of patients, a complication FDA approved Drug Library developed, with 30% of patients experiencing a catheter or exit-site problem, 11% developing infection, 13% needing PDC revision, and 11% requiring unplanned transfer to hemodialysis because of catheter-related problems.

Conclusions: There were numerous deviations from the ISPD guidelines for PDC placement in the community. Patient satisfaction with education was suboptimal, and complications were frequent. Improving patient education and care coordination for PDC placement were identified as specific quality improvement needs.”
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