Current actuarial survival with continuous-flow pumps exceeds 80% at 1 year and 70% at 2 years. J Heart Lung Transplant 2012;31:117-26 (C) 2012 International Society for Heart and Lung Transplantation. All rights reserved.”
“In order to understand the mechanism of coercivity (H-c) of Nd-Fe-B magnets, we have investigated the
effect of thermal annealing https://www.selleckchem.com/products/pnd-1186-vs-4718.html treatment on Nd-Fe-B thin films with Nd-Cu alloy cap layers. A substantial enhancement of H-c from 19.0 kOe (1512 kAm(-1)) to 26.1 kOe (2078 kAm(-1)) was obtained for the Nd-Fe-B/Nd36Cu64 films after post-annealing at 400 degrees C. Through electron microscope observation, it was revealed that Nd and Cu enrichment is clearly observed in the grain boundary of the Nd-Fe-B layer, whereas the concentration of Fe was decreased there. These results suggest that the exchange coupling between Nd2Fe14B grains is weakened by the infiltration of a non-magnetic element into the grain boundary after the optimum thermal annealing treatment. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3608244]“
“Objectives.
The objectives of this study were to compare numerically the bending and torsional mechanical behavior of 5 endodontic rotary Ni-Ti instruments with equivalent size and various designs for tapers, pitch, and cutting blades.
First, the geometries of Hero (20/0.06), HeroShaper (20/0.06), ProFile (20/0.06), Mtwo (20/0.06), and ProTaper F1 were generated by finite element code. Then, the 2 most representative clinical BBI608 Selleckchem CH5424802 loadings, i.e., bending and torsion, were studied with an ad hoc model for the superelasticity of Ni-Ti. Bending was generated by tip deflection and torsion by a constant twist-angle of the tip.
Results. Mechanical behavior of these 5 endodontic rotary Ni-Ti instruments could be evaluated and compared. Protaper F1 presented the greatest level of bending stress and torque. Hero and HeroShaper were more rigid than ProFile and Mtwo.
Conclusions. This numerical comparison evaluated the effects of
the geometrical parameters on the instrumental mechanical behavior. The 5 endodontic instruments, investigated in the present study, do not have the same bending and torsional mechanical behavior. Each clinician must be aware of these behavior differences so as to use the adequate file according to the clinical situation and to the manufacturer’s recommendations. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2011; 111: 115-121)”
“BACKGROUND: In lung transplant recipients (LTRs), tacrolimus is often utilized as a core component of immunosuppressive regimens. Although tacrolimus can be delivered orally or intravenously, oral tacrolimus is associated with fewer adverse effects. Various reports have suggested that sublingual tacrolimus may be used as an alternative to oral tacrolimus; however, information regarding converting between routes is limited.