The sponge Phorbas amaranthus from Florida contains the new ring A-contracted steroids, phorbasterones A-D, and the known anthosterones A and B. The structures of phorbasterones A-D were determined by interpretation of their spectroscopic data. Phorbasterones show moderate cytotoxicity against HCT-116 tumor cells.

The Neotropical genus Costitachys Erwin 1974 is revised. Newly discovered specimens of a new species of Costitachys from Ecuador provide comparative genitalic characters of males for the genus and extend its range 2900 km west of its previously known distribution into an additional center of species radiation in South America, the "North Andean Slope." A new species, Costitachys tena Erwin and ...

Social adjustment of 116 adult epileptics who had attended the out patient department of Agra Mental Hospital during a period of 3 years was studied through a follow-up investigation. Adjustment was recorded 'good' in 34.5%, fair in 19.8%, poor in 22.4% and very poor in remaining 23.3% cases.

This article aims to classify those reducts of expansions of (Q, <) by unary predicates which eliminate quantifiers, and in particular to show that, up to interdefinability, there are only finitely many for a given language. Equivalently, we wish to classify the closed subgroups of Sym(Q) containing the group of all automorphisms of (Q, <) fixing setwise certain subsets. This goal is achieved f...

Background: Prior to the pandemic, telemedicine use was limited and sparsely funded within Ontario. During a shift in clinical recommendations government funding models promoted telemedicine. We aim highlight both quantitative qualitative aspects of patient provider experience over 2.5 years Canadian Pediatric Neurology clinic. Main objectives study are assess safety, efficiency convenience Met...