Publications by authors named "S C Karat"
The Heisenberg uncertainty principle dictates that the position and momentum of an object cannot be simultaneously measured with arbitrary precision, giving rise to an apparent limitation known as the standard quantum limit (SQL). Gravitational-wave detectors use photons to continuously measure the positions of freely falling mirrors and so are affected by the SQL. We investigated the performance of the Laser Interferometer Gravitational-Wave Observatory (LIGO) after the experimental realization of frequency-dependent squeezing designed to surpass the SQL.
View Article and Find Full Text PDFPurpose: To compare the efficacy, safety, and tolerability of lifitegrast 5% versus carboxymethylcellulose (CMC) 0.5% in adult patients with dry eye disease (DED).
Methods: A total of 370 eligible patients with DED were randomized equally to receive twice-daily doses of a single drop in each eye of either lifitegrast 5% or CMC 0.
Article Synopsis
- The study investigates compact binary coalescences with at least one component mass between 0.2 and 1.0 solar masses using data from Advanced LIGO and Advanced Virgo detectors over six months in 2019, but they found no significant gravitational wave candidates.
- The analysis leads to an upper limit on the merger rate of subsolar binaries ranging from 220 to 24,200 Gpc⁻³ yr⁻¹, based on the detected signals’ false alarm rate.
- The researchers use these limits to set new constraints on two models for subsolar-mass compact objects: primordial black holes (suggesting they make up less than 6% of dark matter) and
Purpose: Amidst the ongoing coronavirus disease 2019 (COVID-19) pandemic, India experienced an epidemic of COVID-19-associated rhino-orbito-cerebral mucormycosis (ROCM). This study aimed to describe the epidemiology and elucidate the risk factors for developing COVID-19-associated ROCM, comparing the risk factors among COVID-19 patients with and without ROCM.
Methods: This case-control study included all COVID-19-associated ROCM patients treated at our hospital from May 1 to July 30, 2021.
Size at birth, lifecourse factors, and cognitive function in late life: findings from the MYsore study of Natal effects on Ageing and Health (MYNAH) cohort in South India.
Int Psychogeriatr
April 2022
Objective: To examine if smaller size at birth, an indicator of growth restriction in utero, is associated with lower cognition in late life, and whether this may be mediated by impaired early life brain development and/or adverse cardiometabolic programming.
Design: Longitudinal follow-up of a birth cohort.
Setting: CSI Holdsworth Memorial Hospital (HMH), Mysore South India.