Results 41 to 50 of about 166,453 (383)

A mechanistic study on the phototoxicity of atorvastatin: singlet oxygen generation by a phenanthrene-like photoproduct [PDF]

open access: yes, 2009
Atorvastatin calcium (ATV) is one of the most frequently prescribed drugs worldwide. Among the adverse effects observed for this lipid-lowering agent, clinical cases of cutaneous adverse reactions have been reported and associated with photosensitivity ...
IESCE, MARIA ROSARIA   +4 more
core   +1 more source

New Energy Technologies: Microalgae, Photolysis and Airborne Wind Turbines

open access: yesSci, 2021
Because of the near-term risk of extreme weather events and other adverse consequences from climate change and, at least in the longer term, global fossil fuel depletion, there is worldwide interest in shifting to noncarbon energy sources, especially ...
Patrick Moriarty, Damon Honnery
doaj   +1 more source

Photolysis and hydrolysis of rimsulfuron

open access: yesPesticide Science, 1999
The degradation in the liquid phase of rimsulfuron and its commercial 250 g kg−1 WG formulation (Titus®) was investigated. Photolysis reactions were carried out at 25 °C by a high-pressure mercury arc (Hg-UV) and a solar simulator (Suntest), while the hydrolysis rate was determined by keeping aqueous buffered samples in the dark. The effects of solvent
SCRANO, Laura   +4 more
openaire   +2 more sources

Investigation on UV Degradation and Mechanism of 6:2 Fluorotelomer Sulfonamide Alkyl Betaine, Based on Model Compound Perfluorooctanoic Acid

open access: yesChemEngineering
The UV treatment of 6:2 FTAB involves the mitigation of this persistent chemical by the impact of ultraviolet radiation, which is known for its resistance to environmental breakdown.
Naveed Ahmed   +5 more
doaj   +1 more source

Thermochemistry and photochemistry of spiroketals derived from indan-2-one: Stepwise processes versus coarctate fragmentations

open access: yesBeilstein Journal of Organic Chemistry, 2013
Coarctate reactions are defined as reactions that include atoms at which two bonds are made and two bonds are broken simultaneously. In the pursuit of the discovery of new coarctate reactions we investigate the fragmentation reactions of cyclic ketals ...
Götz Bucher   +2 more
doaj   +1 more source

Degradation of Doxycycline, Enrofloxacin, and Sulfamethoxypyridazine under Simulated Sunlight at Different pH Values and Chemical Environments

open access: yesAgronomy, 2022
In this work, the dissipation of the antibiotics doxycycline (DC) (from the group of tetracyclines), enrofloxacin (ENR) (a fluoroquinolone), and sulfamethoxypyridazine (SMP) (a sulfonamide) is investigated both under simulated sunlight and in the dark ...
Cristina Álvarez-Esmorís   +5 more
doaj   +1 more source

Positionally dependent ^(15)N fraction factors in the UV photolysis of N_2O determined by high resolution FTIR spectroscopy [PDF]

open access: yes, 2000
Positionally dependent fractionation factors for the photolysis of isotopomers of N_2O in natural abundance have been determined by high resolution FTIR spectroscopy at three photolysis wavelengths.
Blake, G. A.   +6 more
core  

Photochemical hazes in sub-Neptunian atmospheres with focus on GJ 1214 b [PDF]

open access: yes, 2019
We study the properties of photochemical hazes in super-Earths/mini-Neptunes atmospheres with particular focus on GJ1214b. We evaluate photochemical haze properties at different metallicities between solar and 10000$\times$solar.
Koskinen, Tommi   +4 more
core   +4 more sources

Impacts of aerosol direct effects on tropospheric ozone through changes in atmospheric dynamics and photolysis rates

open access: yesAtmospheric Chemistry and Physics, 2017
Aerosol direct effects (ADEs), i.e., scattering and absorption of incoming solar radiation, reduce radiation reaching the ground and the resultant photolysis attenuation can decrease ozone (O3) formation in polluted areas.
J. Xing   +10 more
semanticscholar   +1 more source

Stabilized Intermediate Phase Via Pseudo‐Halide Anions Toward Highly Efficient and Light‐Soaking Stable Perovskite Solar Cells

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The formate pseudo‐halide anion is strategically introduced at the buried interface to stabilize the intermediate phases formed during perovskite crystallization. The controlled crystallization enhances crystallinity and alleviates tensile strain, eliminating residual PbI2 near the buried interface.
Jongdeuk Seo   +12 more
wiley   +1 more source

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