Insights into the Risk Factors and Outcomes of Post-COVID-19 Syndrome-Results from a Retrospective, Cross-Sectional Study in Romania.

Post-Coronavirus Disease 2019 (post-COVID-19) syndrome represents a cluster of persistent symptoms following Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection that can severely affect quality of life. The pathogenic mechanisms and epidemiology in different regions are still under evaluation. To assess the outcomes of post-COVID-19 syndrome, we performed a questionnaire-based, cross-sectional study in previously infected individuals.

Gas-Phase Reaction Kinetic Study of a Series of Methyl-Butenols with Ozone under Atmospherically Relevant Conditions.

Methyl-butenols are a category of oxygenated biogenic volatile organic compounds emitted by plants as part of their natural metabolic processes. This study examines the gas-phase reactions of ozone (O) with five methyl-butenols (2-methyl-3-buten-2-ol, 3-methyl-2-buten-1-ol, 3-methyl-3-buten-1-ol, 2-methyl-3-buten-1-ol, and 3-methyl-3-buten-2-ol) under atmospheric conditions at a temperature of (298 ± 2) K and pressure of (1000 ± 10) mbar. The experimental values for the gas-phase reaction rate coefficients obtained in this study, by using the relative rate method, are as follows (in cm molecule s): k(3-methyl-2-buten-1-ol + O) = (311 ± 20) × 10, (2-methyl-3-buten-2-ol + O) = (9.

Gas-Phase Kinetics of a Series of -3-Hexenyl Esters with OH Radicals under Simulated Atmospheric Conditions.

The present relative kinetic study reports on the experimentally determined gas-phase reaction rate coefficients of OH radicals with a series of seven 3-hexenyl esters. The experiments were carried out in the environmental simulation chamber made of quartz from the "Alexandru Ioan Cuza" University of Iasi (ESC-Q-UAIC), Romania, at a temperature of (298 ± 2) K and a total air pressure of (1000 ± 10) mbar. In situ long-path Fourier transform infrared (FTIR) spectroscopy was used to monitor 3-hexenyl formate (3HF, ()-CHCHCH═CH(CH)OC(O)H), 3-hexenyl acetate (3HAc, ()-CHCHCH═CH(CH)OC(O)CH), 3-hexenyl isobutyrate (3HiB, ()-CHCHCH═CH(CH)OC(O)CH(CH)), 3-hexenyl 3-methylbutanoate (3H3MeB, ()-CHCHCH═CH(CH)OC(O)CHCH(CH)), 3-hexenyl hexanoate (3HH, ()-CHCHCH═CH(CH)OC(O)(CH)CH), -3-hexenyl -3-hexenoate (3H3H, ()-CHCHCH═CH(CH)OC(O)CHCH═CHCHCH), 3-hexenyl benzoate (3HBz, ()-CHCHCH═CH(CH)OC(O)CH), and the reference compounds.

Gas-Phase Kinetic Investigation of the OH-Initiated Oxidation of a Series of Methyl-Butenols under Simulated Atmospheric Conditions.

Five biogenic unsaturated alcohols have been investigated under simulated atmospheric conditions regarding their gas-phase OH reactivity. The gas-phase rate coefficients of OH radicals with 2-methyl-3-buten-2-ol (), 3-methyl-2-buten-1-ol (), 3-methyl-3-buten-1-ol (), 2-methyl-3-buten-1-ol (), and 3-methyl-3-buten-2-ol () at 298 ± 2 K and 1000 ± 10 mbar total pressure of synthetic air were determined under low- and high-NO conditions using the relative kinetic technique. The present work provides for the first time the rate coefficients of gas-phase reactions of hydroxyl radicals with 2-methyl-3-buten-1-ol and 3-methyl-3-buten-2-ol.

Hybrid Azine Derivatives: A Useful Approach for Antimicrobial Therapy.

Nowadays, infectious diseases caused by microorganisms are a major threat to human health, mostly because of drug resistance, multi-drug resistance and extensive-drug-resistance phenomena to microbial pathogens. During the last few years, obtaining hybrid azaheterocyclic drugs represents a powerful and attractive approach in modern antimicrobial therapy with very promising results including overcoming microbial drug resistance. The emphasis of this review is to notify the scientific community about the latest recent advances from the last five years in the field of hybrid azine derivatives with antimicrobial activity.