The GRB221009A gamma-ray burst as revealed by the gamma-ray spectrometer onboard the KPLO (Danuri).

The strongest gamma-ray burst (GRB) of the century, GRB20221009A, has been detected by the Korean Pathfinder Lunar Orbiter Gamma-ray Spectrometer (KGRS) instrument onboard the Korean Pathfinder Lunar Orbiter (KPLO). KGRS uses a LaBr detector to measure GRB counts with five energy bins in the energy range from 30 keV to 12 MeV. KGRS detected GRB221009A at a distance of 1.

Attraction of Moths of Two Noctuidae Species to Field Traps Baited With a Mixture of two to three Homologous Acetates in Poland.

Field trials of a series of monounsaturated straight-chain acetates, including the (Z)-5-tetradecenyl acetate, (Z)-9-tetradecenyl acetate (pheromone blend A) and (Z)-5-decenyl acetate, (Z)-7-dodecenyl acetate, (Z)-9-tetradecenyl acetate (pheromone blend B), attracted the following species from the title family: Agrotis exclamationis (Linnaeus) and Agrotis segetum (Denis & Schiffermüller), respectively. Cutworms were monitored in the 2016-2017 season with the use of white Delta-type traps and different pheromone dispensers that contained above blends. The identified pheromone components at blend A elicited maximum trap captures when combined in a Z5-14:Ac/Z9-14:Ac-mixture ratio 100:16 at dose of 350 µg.

Search for bioactive compounds from Cantharellus cibarius.

Ground fruit bodies of Cantharellus cibarius (chanterelle) were extracted with dichloromethane and subjected to CC followed by preparative HPLC, which led to the isolation of glycerol 1,2- and 1,3-dilinoleates and glycerol tridehydrocrepenynate. Extraction of C. cibarius fruit bodies with ethanol or methanol afforded fatty acid ethyl or methyl esters as a result of esterification/transesterification reactions.