Theoretical simulations of temperature elevations in root dentin are performed to evaluate how heating protocols affect the efficacy of using Er,Cr;YSGG pulsed lasers for bacterial disinfection during root canal treatments. The theoretical models are generated based on microCT scans of extracted human teeth. Heat transfer simulations are performed using the Pennes bioheat equation to determine ...

Ce-activated Gd3Al5O12 garnet, effectively stabilized by Lu3+ doping, has been developed for new yellow-emitting phosphors. The powder processing of [(Gd1−xLux )1−yCey]3Al5O12 solid solutions was achieved through precursor synthesis via carbonate precipitation, followed by annealing. The resultant (Gd,Lu)AG : Ce phosphor particles exhibit typical yellow emission at ∼ 570 nm (5d–4f transition of...

The gabbro-garnet granulite-eclogite transformation may play a significant role in driving the motions of terrestrial lithospheric plates. Whether or not this transformation is in fact important as a driving mechanism for plate tectonics depends on the relationship of the reaction time to geologic time. Solid state diffusion under completely dry conditions is investigated as a possible model fo...

The complexation ability of DOTA analogs bearing one methylenephosphonic (DO3AP) or methylenephosphinic (DO3AP(PrA) and DO3AP(ABn)) acid pendant arm toward scandium was evaluated. Stability constants of their scandium(iii) complexes were determined by potentiometry combined with (45)Sc NMR spectroscopy. The stability constants of the monophosphinate analogues are somewhat lower than that of the...

introduction: implant bed preparation with laser is taken into consideration owing to the increased interest in use of lasers in hard tissue surgery. the purpose of this study is to determine the deviations in the position and inclination between the planned and prepared implant beds with erbium, chromium doped yttrium scandium gallium garnet (er,cr: ysgg) laser using stereolithographic (sla) s...

MEASUREMENT SYSTEM FOR HIGH PRESSURE CHARACTERIZATIONS OFMATERIALS by Matthew K. Jacobsen Dr. Andrew Cornelius, Examination Committee Chair Associate Professor of Physics and Astronomy University of Nevada, Las Vegas Thermoelectric materials have long been investigated for possible use as power sources. This application was recently put to use in the Voyager space program, powering the deep spa...

AIMS The advent of diode lasers has allowed their use in transscleral cyclo photocoagulation for refractory glaucoma. A trial was performed to compare the ocular hypotensive and inflammatory effects of cyclo photocoagulation using a continuous wave diode (810 nm) and a free running neodymium:yttrium aluminium garnet (Nd:YAG) laser (1064 nm). METHODS Forty patients with refractory glaucoma wer...