Laser technologies for ultrasensitive groundwater dating using long-lived isotopes

2017 ◽  
Author(s):  
Sterling Backus
Keyword(s):  
Laser Technologies ◽  
Groundwater Dating

Use of laser technologies in a complex of arrangements to patients operated for the genital prolapse

GYNECOLOGY ◽  
2016 ◽  
Vol 18 (1) ◽  
Author(s):  
A.A. Ishchenko ◽  
A.I. Ishchenko ◽  
I.V. Shulchina ◽  
A.I. Muravlev
Keyword(s):  
Genital Prolapse ◽  
Laser Technologies

scholarly journals Optical-Trapping Laser Techniques for Characterizing Airborne Aerosol Particles and Its Application in Chemical Aerosol Study

Micromachines ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 466
Author(s):  
Aimable Kalume ◽  
Chuji Wang ◽  
Yongle Pan
Keyword(s):  
Light Scattering ◽  
High Speed ◽  
Optical Trapping ◽  
Aerosol Particles ◽  
Particle Interaction ◽  
Raman Laser ◽  
General Description ◽  
Sample Collection ◽  
Laser Technologies ◽  
Laser Induced Breakdown

We present a broad assessment on the studies of optically-trapped single airborne aerosol particles, particularly chemical aerosol particles, using laser technologies. To date, extensive works have been conducted on ensembles of aerosols as well as on their analogous bulk samples, and a decent general description of airborne particles has been drawn and accepted. However, substantial discrepancies between observed and expected aerosols behavior have been reported. To fill this gap, single-particle investigation has proved to be a unique intersection leading to a clear representation of microproperties and size-dependent comportment affecting the overall aerosol behavior, under various environmental conditions. In order to achieve this objective, optical-trapping technologies allow holding and manipulating a single aerosol particle, while offering significant advantages such as contactless handling, free from sample collection and preparation, prevention of contamination, versatility to any type of aerosol, and flexibility to accommodation of various analytical systems. We review spectroscopic methods that are based on the light-particle interaction, including elastic light scattering, light absorption (cavity ring-down and photoacoustic spectroscopies), inelastic light scattering and emission (Raman, laser-induced breakdown, and laser-induced fluorescence spectroscopies), and digital holography. Laser technologies offer several benefits such as high speed, high selectivity, high accuracy, and the ability to perform in real-time, in situ. This review, in particular, discusses each method, highlights the advantages and limitations, early breakthroughs, and recent progresses that have contributed to a better understanding of single particles and particle ensembles in general.

scholarly journals New Laser Technologies for Diabetic Retinopathy

2013 ◽  
Vol 1 (3) ◽  
pp. 134-143
Author(s):  
Natalia Fijalkowski ◽  
Darius M. Moshfeghi
Keyword(s):  
Diabetic Retinopathy ◽  
Laser Technologies

Laser technologies for micro-optics fabrication

1993 ◽  
Author(s):  
Vadim P. Veiko ◽  
Alexei K. Kromin ◽  
Evgeny B. Yakovlev
Keyword(s):  
Laser Technologies ◽  
Micro Optics ◽  
Optics Fabrication

Variability in Atmospheric Chlorofluorocarbons (CCl3F and CCl2F2) near a Large Urban Area:  Implications for Groundwater Dating

1998 ◽  
Vol 32 (16) ◽  
pp. 2377-2382 ◽  
Author(s):  
David T. Ho ◽  
Peter Schlosser ◽  
William M. Smethie ◽  
H. James Simpson
Keyword(s):  
Urban Area ◽  
Large Urban Area ◽  
Groundwater Dating

What is Being Reported About Vaginal “Lasers”?: An Examination of Adverse Events Reported to the Food and Drug Administration on Energy-Based Devices

2021 ◽  
Author(s):  
Linda Burkett ◽  
Pamela Moalli ◽  
Mary Ackenbom
Keyword(s):  
Adverse Events ◽  
Local Treatment ◽  
Safety Data ◽  
Co2 Lasers ◽  
Laser Technologies ◽  
Surgical Devices ◽  
Device Type ◽  
User Facility ◽  
Similar Risk ◽  
Sensation Loss

Abstract Background Description of energy-based genitourinary non-surgical devices (energy-based devices) safety data is outlined given their rapid adoption. Objectives To describe adverse events (AEs) for energy-based devices in the Manufacturer and User Facility Device Experience (MAUDE) database, and to compare to similar devices and other subspecialty applications. We hypothesized that products with genitourinary applications had similar AEs to dermatologic or general surgery applications. Methods Reed Tech™ Navigator compiled AE reports for all registered energy-based devices. Individual AE reports associated with 1) non-ablative, 2) fractionated, 3) unfractionated 4) radiofrequency, and 5) hybrid laser technologies were categorized. AE characteristics were compared among genitourinary applications (n=39) and other subspecialty applications within the same devices (n=79). Results Eighteen manufacturers were identified, which collectively manufacture 43 products with genitourinary applications. Thirty-nine genitourinary AEs were reported and isolated to 6 manufacturers with 11 products, of which 82% (n=32) were injuries, 15% (n=6) were device malfunction, and 3% (n=1) related to improper maintenance. Local treatment reactions were the most commonly reported injury (62%, n=21). AEs varied by device type with CO2 lasers having more burns and radiofrequency devices having higher rates of sensation loss. When comparing similar technology types, genitourinary energy-based devices had the least AE reports per device in MAUDE database. Conclusions AEs were reported on a quarter of the products currently available, and most were local treatment reactions. The reporting of AEs is equal to that of other subspecialties suggesting similar risk profiles. Improved reporting is needed to fully evaluate the safety of individual energy-based devices.

Noninvasive optical laser technologies for the transplantation of mammalian nuclei

BIOPHYSICS ◽  
2010 ◽  
Vol 55 (3) ◽  
pp. 377-385
Author(s):  
T. A. Sviridova-Chailakhyan ◽  
G. M. Kantor
Keyword(s):  
Laser Technologies ◽  
Optical Laser
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