Publications by authors named "J ZAVALA"
The James Webb Space Telescope has discovered a surprising population of bright galaxies in the very early Universe (≲500 Myr after the Big Bang) that is hard to explain with conventional galaxy-formation models and whose physical properties are not fully understood. Insight into their internal physics is best captured through nebular lines, but at these early epochs, the brightest of these spectral features are redshifted into the mid-infrared and remain elusive. Using the mid-infrared instrument onboard the James Webb Space Telescope, here we present a detection of Hα and doubly ionized oxygen ([O iii] 4959,5007 Å) from the bright, ultra-high-redshift galaxy candidate GHZ2/GLASS-z12.
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- A study was conducted to assess the effectiveness of using porcine anterior lens capsules as a substitute for Bowman layer grafts in rabbits with keratoconus, due to a shortage of donor corneas.
- The research involved transplanting the lens capsules into the corneal stroma of rabbits and monitoring changes in corneal transparency, thickness, and shape at various time points.
- Results indicated that the transplanted lens capsules preserved corneal transparency and structural integrity without any negative effects, suggesting they could be viable alternatives to Bowman layer grafts in corneal surgeries.
Mutagenic Atmospheres Generated from the Photooxidation of NO with Selected VOCs and a Complex Mixture: Apportionment of Aromatic Mutagenicity for Reacted Gasoline Vapor.
Atmos Environ (1994)
June 2024
Article Synopsis
- The study investigates how sunlight interacts with volatile organic compounds (VOCs), particularly those from gasoline vapors, producing harmful byproducts that contribute to air pollution.
- Researchers found that atmospheres created by irradiating gasoline and certain non-aromatic VOCs were mutagenic, meaning they could potentially cause genetic mutations, while dark atmospheres were not.
- The findings suggest that while non-aromatic VOCs have a minor role in mutagenicity, combined with aromatic VOCs, they can account for a significant portion of the mutagenic effects of gasoline vapors, highlighting the need for emission reduction strategies to improve air quality and public health.
Purpose: Surgery is the definitive treatment for pterygium; therefore, reliable animal models are required for translational research. The goal of this investigation was to establish a standardized preclinical model of pterygium-like lesion.
Methods: A subconjunctival injection of fibroblasts (NIH3T3) and extracellular matrix was administered to 22 New Zealand rabbits.