In addition to surface area and crystal orientation, some experiments suggest a third mechanism that enhances recombination on oxide-passivated pyramids. With capacitance-voltage and photoconductance measurements, we confirm this speculation, showing that oxide-passivated pyramidal textured silicon has a higher density of interface states than can be accounted see more for by surface
area and orientation, and that the additional defects are predominantly acceptorlike when above, or donorlike when below, an energy of 0.3 eV higher than the valence band. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3153979]“
“Background: The aim of this study was to investigate the role of the urinary chiro-and myo-inositol levels in predicting type 2 diabetes mellitus (T2DM).
Subjects and methods: A total of 212 normal controls and 101 type 2 diabetic patients were enrolled this study. The concentrations of urinary chiro-and myo-inositol were measured by high performance liquid chromatography/mass spectrometry.
Results: check details The concentration of urinary chiro-inositol was significantly higher in the diabetic subjects (2.24 +/- 5.18 ng/L) than those in
the control group (0.38 +/- 0.62 ng/L; p < 0.001). The urinary myo-inositol level of the diabetic subjects (36.95 +/- 37.77 ng/L) was also significantly higher than that of the controls (8.17 +/- 13.29 ng/L; p < 0.001). The urinary chiro-inositol multiplied by myo-inositol level of the diabetic subjects (148.10 +/- 544.91) was significantly higher than in the controls (5.12 +/- 24.15; p < 0.001). The area under the receiver operating characteristic curve for the urinary chiro-inositol multiplied Selleckchem BI 2536 by myo-inositol level to predict T2DM was 0.840 (confidence interval 0.789-0.891, p < 0.001). The cut-off value for the urinary chiro-inositol multiplied by myo-inositol level to predict T2DM was 2.20 (sensitivity 81.3%, specificity 70.3%).
Conclusions: The urinary chiro-and myo-inositol concentrations were increased in the type 2 diabetic patients and the urinary chiro-times the
myo-inositol was considered to be a sufficient marker in predicting T2DM.”
“Introduction: The benefits conferred by cardiac resynchronization therapy (CRT) are markedly influenced by the left ventricular (LV) lead placement. Little is known regarding the optimal right ventricular (RV) stimulation site.
Study Objective: To compare the long-term outcomes of CRT in patients with RV leads placed in the mid-septal region versus the apex.
Methods and Results: This nonrandomized, observational study included 117 patients with standard indications for CRT. The LV lead was implanted on the postero-lateral or lateral LV wall, while the RV lead was implanted at the apex (n = 82) or in the mid-septum (n = 35).