The genus Aeromonas has undergone a number of taxonomic and nomenclature revisions over the past 20 years, and new (sub)species and biogroups are continuously described. Standard identification methods such as biochemical characterization have deficiencies and do not allow clarification of the taxonomic position. This report describes the development of a matrix-assisted laser desorption/ionisa...

By inducing two-photon absorption within the active layer of a 28nm test chip, we demonstrate nonlinear laser-assisted device alteration and single-event upsets by temporarily perturbing the timing characteristics of sensitive transistors. Individual qualitative and quantitative evaluations are presented for both techniques, with lateral resolutions demonstrated with sub-100nm performance. A si...

FTR-Raman Spectra of human dental enamel, both laser-irradiated and untreated, are reported. Spectra are compared with hydroxyapatite. It is evident that unlike the CO2 laser, the Nd/YAG laser does not induce any chemical change in dental enamel.

Ž . We have combined some of the major positive advantages of laser-induced forward transfer LIFT and matrix-assisted Ž . pulsed laser evaporation MAPLE , to produce a novel excimer laser driven direct writing technique which has demonstrated the deposition in air and at room temperature and with sub-10 mm resolution of active and passive prototype circuit elements Ž on planar and nonplanar sub...

A 40-year old woman was visited at our clinic with a history of palpable purpura appearing after alexandrite laser (Apogee 5500 Alex, 15mm spot shot, 755 nm wave length, 18 j/cm2 fluence) hair removal. The skin lesions were located bilaterally on the lower extremity (Figure1). Other physical examinations were unremarkable. The patient had no history of taking medications, underlying systemic di...

Purpose: The purpose of this study was to evaluate a new procedure aimed at lengthening the palpebral fissure to facilitate femtosecond laser-assisted cataract surgery in patients with small eyes. Method: A quick procedure using the CO2 laser was adapted for patients with small eyes undergoing laser-assisted cataract surgery using the Catalys system. The UniPulse CO2 laser (Nidek) was used for ...

This work studied the effect of additions of carbon dioxide to argon shielding gas on the weld shape and microstructure of ST14 steel in pulsed Nd: YAG laser welding. By additions of carbon dioxide up to 15%,the weld area and depth/width ratio decreases while rising of carbon dioxide up to 25% causes increasing of weld area and depth/width ratio. It is observed that the weld metal microstructur...

Abstract We report on the development of a comb-assisted cavity ring-down spectrometer for trace water mole fraction determinations in high purity gases. By tuning laser light coincidence with H 2 O absorption line at 1.3946 µ m, we were able to determine sub-ppm relative concentrations vapour N sub-percent statistical uncertainty. The sensitivity was carefully assessed, yielding detection limi...

introduction: thermal changes in laser assisted root canal therapy with the use of diode laser can predispose tooth structure to the fracture. this study evaluated the changes in flexural strength of dentin blocks after diode laser irradiations (810 nm). methods: a total of 60 dentinal blocks were prepared from freshly extracted teeth in three different thicknesses (300, 500 and 1000μm) and 20 ...

Background Although the utility of laser fiber in microscopic stapes surgery has been documented past, their role can be highly emphasized endoscopic surgery, especially difficult anatomical situations. Methods This is a retrospective analysis cases where total 46 patients (22 conventional stapedotomy and 24 CO2 laser-assisted stapedotomy) were included study. The clinical parameters assessed b...