Optimization and Standardization of the Extraction Method of Del. Seeds (Zygophyllaceae) Used in the Formulation of an Antiparasitic Phytomedicine.

Del. (Zygophyllaceae) is widely used in traditional medicine, both human and veterinary, throughout Africa for its many properties, including antiparasitic properties. This experimental study aims to optimize the extraction conditions of the seeds of Del.

A theoretical study on the environmental oxidation of fenpyrazamine fungicide initiated by hydroxyl radicals in the aqueous phase.

Fenpyrazamine (FPA) is a widely used fungicide in agriculture to control fungal diseases, but its environmental degradation by oxidants and the formation of potential degradation products remain unexplored. This study investigates the oxidation of FPA by hydroxyl radicals (HO˙) using density functional theory (DFT) calculations at the M06-2X/6-311++G(3df,3pd)//M06-2X/6-31+G(d,p) level of theory. Three standard oxidation mechanisms, including formal hydrogen transfer (FHT), radical adduct formation (RAF), and single electron transfer (SET), were evaluated in the aqueous phase, with reaction kinetics analyzed over a temperature range of 283-333 K.

Perceived climate risk and stock prices: An empirical analysis of pricing effects.

Increasing awareness of climate change and its potential consequences on financial markets has led to interest in the impact of climate risk on stock returns and portfolio composition, but few studies have focused on perceived climate risk pricing. This study is the first to introduce perceived climate risk as an additional factor in asset pricing models. The perceived climate risk is measured based on the climate change sentiment of the Twitter dataset with 16 million unique tweets in the years 2010-2019.

A nationwide survey of antimicrobial resistance of isolated from broiler chickens in Malawi.

Background: Antimicrobial resistance is a global health challenge with profound implications across sectors. Livestock, a significant field at the One Health interface, lacks sufficient information, particularly in low-resource settings such as Malawi.

Objectives: We determined the antimicrobial resistance rates of isolated from broiler chickens in Malawi and explored the relationship between resistance genes across sectors using genomic analysis.