Publications by authors named "C Perera"

We present state-to-state differential cross sections for rotationally inelastic collisions of vibrationally excited NO XΠ ( = 9) with Ar using a near-counterpropagating molecular beam geometry. These were obtained using the stimulated emission pumping technique coupled with velocity map imaging. Collision energies well over ∼1 eV were achieved and rotational excitations up to ∼Δ = 60 recorded for the first time for inelastic collisions.

View Article and Find Full Text PDF

Purpose: To determine the rate of visual field (VF) loss before and after the diagnosis of primary open angle glaucoma (POAG) in the Ocular Hypertension Treatment Study (OHTS).

Design: Pre-specified analyses of data collected prospectively in a clinical trial with extended follow-up.

Setting And Participants: Participants who developed POAG during OHTS 1 and 2 (February 1994 to December 2008) constitute an inception cohort.

View Article and Find Full Text PDF
Article Synopsis
  • The choroid plexus (CP) and blood-cerebrospinal fluid-barrier (BCSFB) play a critical role in producing and clearing cerebrospinal fluid, and their dysfunction is linked to neurodegenerative diseases like Alzheimer's disease (AD).
  • This study utilized advanced MRI techniques to measure water delivery across the BCSFB in a triple transgenic mouse model of AD, observing significant changes in CP function even before clinical symptoms appear.
  • Results indicated increased BCSFB-mediated water delivery in younger mice, with notable behavioral differences arising around 20 weeks, suggesting that CP changes could serve as early biomarkers for AD.
View Article and Find Full Text PDF

State-to-state spin-orbit changing collisions of vibrationally excited nitric oxide (NO) with argon (Ar) were studied across a wide collision energy range from 3.5 to 11,200 cm (0.43 meV to 1.

View Article and Find Full Text PDF