Direct tunneling and Fowler-Nordheim tunneling have been observed over eight orders of magnitude in current density. The ratio between forward and reverse current is as large as two orders of magnitude. Simulations have been carried out to extract the static device parameters and have confirmed the existence of a dipole layer at the aluminum/aluminum oxide interface of the printed tunneling diodes. Capacitance measurements have shown that the permittivity of the ultrathin aluminum oxide film is smaller than that of bulk aluminum oxide. The mechanical yield of the transfer-printing process is better than 80%, confirming
that transfer printing is a promising candidate for the efficient fabrication of quantum devices over large areas. (C) 2011 American Institute of Physics. [doi:10.1063/1.3615952]“
“Pulse pressure and urinary albumin excretion were recently identified as risk factors of new-onset diabetes after renal transplantation AZD1208 purchase (NODAT), suggesting
that microvascular injury may be implicated in NODAT. However, the relationship between of microvascular injury and NODAT is unknown. In the present long-term (median follow-up: 5.7 years; observation period: 4908 patient-years) retrospective study in 656 renal transplant recipients, the association between baseline renal resistance index (RI, used as a marker of widespread Selleckchem LY294002 microvascular damage) and the incidence of NODAT was assessed. The incidence of NODAT was 11.2% and 14.6% at 5 and 10 years, respectively, after transplantation. RI at 3 months was a risk factor for NODAT [hazard ratio (HR) per 0.1: 2.19 (1.553.09), P < 0.0001]. RI >0.75 (vs. 0 = 0.75) was a potent a predictor of NODAT [HR: 3.29 (1.915.67), P < 0.0001], even after adjustments [HR: 3.29 (1.507.24), P = 0.0030] on age, weight, glucose, nephropathy, and arterial pressure. Similar results were observed CP-456773 Sodium when RI was measured at 1 month [HR per 0.1:1.74 (1.332.27), P < 0.0001] and 12
months [HR per 0.1:1.74 (1.332.27), P < 0.0001] after transplantation. High RI early after renal transplantation is a long-term risk factor for NODAT, and could be used to refine the individual risk of NODAT.”
“The bulk modulus of scandia is evaluated by ab initio calculation, based on density functional theory, and compared with bulk modulus measurement on nearly fully dense scandia and with the value attained from the equation of state based on diamond anvil cell measurements. The current results are in the upper range of the bulk moduli results in the literature. The scatter in the literature results might be explained by the differences in the specific volumes of the measured and calculated cases. For the specific volume of 59.65 +/- 0.07 angstrom(3) the average measured isothermal bulk modulus of scandia from the present study and recent literature results is 188 +/- 10 GPa. (C) 2011 American Institute of Physics. [doi: 10.1063/1.