BACKGROUND Transmyocardial laser revascularization using different lasers is being tested in the treatment of refractory angina. We conducted comparative analysis of the acute and chronic myocardial effects of these different lasers. METHODS Transmyocardial channels were made in normal dog hearts with either a holmium:yttrium-aluminum garnet or a CO2 laser. Channels were examined histological...

a particular feature of biotite grains from some of the canadian appalachian granitic rocks is the presence of lenses of ca-al silicates developed along cleavage planes. these from the more to less common are prehnite, pumpellyite and grandite garnet, an intermediate composition between andradite and grossular. rarely all three minerals can be observed together in one single biotite grain. micr...

We investigate picosecond spin currents across Au/iron-garnet interfaces in response to ultrafast laser heating of the electrons Au film. In picoseconds after optical heating, interfacial occur due an temperature difference between metal and magnons insulator. report measurements this longitudinal Seebeck effect rare-earth iron-garnet insulators, i.e., $\mathrm{R}{\mathrm{E}}_{3}\mathrm{F}{\mat...

Introduction: The use of lasers for treatment has become a common phenomenon in the medical field. Currently, numerous laser systems are available for dental use. The use of lasers for periodontal treatment becomes more complicated because the periodontium consists of both hard and soft tissues. Methods: Related articles were gathered and selected carefully and reviewed. Among the many lasers a...

In the Geologists and Miller Ranges of the central Transantarctic Mountains, mafic and ultramalic tectonic blocks occur in an Early Cambrian amphiboliteto granulite-facies lower crustal transpressional shear zone. Mafic blocks consist of garnet + clinopyroxene symplectite + hornblende + plagioclase + quartz + ilmenite f orthopyroxene f biotite;mineral compositions in these blocks generally refl...