Publications by authors named "P Piyush"
Purpose: To study topical timolol (0.5%) as a first-line treatment in ophthalmic pyogenic granuloma (PG) in terms of safety and efficacy.
Methods: This was a prospective, interventional, single-arm study conducted at a tertiary eye care hospital in central India.
This note presents an optical beam deflection-based measurement system to make multi-axis out-of-plane motion measurement at multiple points on both micro- and macro-scale targets. A novel automated calibration stage has been designed to change the measurement locations on the target and to calibrate the sensitivity matrix of the measurement system at each location. The developed measurement system is validated by measuring the rigid body rotation of a target, after which its utility is demonstrated by performing dynamic characterization of a micro-electro-mechanical system micro-cantilever beam in order to obtain its first two mode shapes.
View Article and Find Full Text PDFHigh speed in-plane (X-Y) nanopositioners are of central importance in scanning probe microscopy for performing fast imaging and manipulation. Reducing the size of the nanopositioning stage improves the response speed of the positioner but also introduces challenges in integration of conventional motion sensors. This paper presents the design and development of a novel high speed flexure-guided, piezo-electrically actuated nanopositioner with integrated optical beam deflection-based motion sensing.
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- A clinical study assessed the effectiveness of lycopene and curcumin compared to a placebo in treating oral submucous fibrosis (OSMF) in 90 patients.
- Participants were randomly divided into three groups, with one group receiving curcumin, another lycopene, and the last a placebo for six months, while their progress was monitored for changes in mouth opening and other symptoms.
- Results showed both curcumin and lycopene led to significant improvements in OSMF symptoms compared to the placebo, indicating that they are similarly effective treatments.
To evaluate the efficacy of laser fibrotomy in patients with oral submucous fibrosis (OSMF) and also to correlate the habit variables causing OSMF. Thirty patients diagnosed clinically and histopathologically with OSMF were included in the study. Laser fibrotomy was done under local anesthesia using Zolar diode laser (980 nm frequency) at 2-W power in contact mode with fibro-optic cutting tip.
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