Seven new dihydrobenzofurans and 2 propynyl thiophenes were isolated from the roots of Eupatorium heterophyllum together with 13 known compounds. The compounds characterized using spectroscopic methods including 2D NMR, infrared, mass spectrometric techniques. Aerial parts this plant have been to contain various sesquiterpenoids displayed high chemical diversity (several and/or identified) amon...

The early history of the Society was extensively chronicled by its founding spirit and first secretary, Geoffrey Jefferson, with all the charm and felicity that characterised him and his writings. It is to be found in the handbook issued in 1955 to members of the Society and has been up-dated in subsequent editions by later secretaries: Joe Pennybacker, Patrick Clarke and, most recently, by Ala...

Bacterial cell division is an intricate process involving the highly coordinated interplay of many different proteins. Joe Lutkenhaus, a microbiology professor at Kansas University Medical Center, was elected to the National Academy of Sciences in 2014 for his key contributions to unraveling the complexities of this process. Among other findings, Lutkenhaus discovered a protein, FtsZ, which is ...

Four species of clearwing moths found in Sakhalin Island July 2021. Pen-nisetia hylaeiformis (Laspeyres, 1801), Sesia yezoensis (Hampson, 1919) and Synanthedon bicingulata (Staudinger, 1887) were collected using synthetic sex pheromones. Females herzi Špatenka et O. Gorbunov, 1992 from inflorescences Eupatorium chinense L. (Asteraceae). is recorded for the fauna island first time. Pennisetia re...

Richard Thaler is out with a new book, Misbehaving, tracing his career in behavioral economics. It offers an appealing combination of entertaining writing and serious discussion of the many areas he has researched. The book is a natural complement to Daniel Kahneman’s classic, Thinking, Fast and Slow. I’ll briefly compare these two books and then address what Thaler’s work says about two issues...

Thirty-two weeds commonly found in the organic soils of southwestern Quebec were evaluated for host suitability to a local isolate of the northern root-knot nematode Meloidogyne hapla under greenhouse conditions. Galls were observed on the roots of 21 species. Sixteen of the 21 had a reproduction factor (Pf/Pi = final number of M. hapla eggs and juveniles per initial number of M. hapla juvenile...

Eupatorium aschenbornianum is a plant used for the treatment of gastric ulcer, therefore, the present study aimed to evaluate the safety of this dehydrated plant in order to find the appropriate doses for further human studies. Male Wistar rats were fed with different incremental doses dehydrated plant from 200 to 1000 mg/kg bw in a subchronic test during 45 days. Animals were sacrificed, then ...

BACKGROUND Plant derived components have attracted particular attention as an alternative source to battle several diseases including cancer. The variation in the climate, the geographical location and the rich ethnomedicinal traditions has made the Darjeeling Himalayas an abode of invaluable repository of traditional medicinal plants. In this study, we explored the in vitro anticancer properti...