Mammalia, Rodentia, Sigmodontinae Wagner, 1843: new Locality records, filling gaps and geographic distribution maps from La Rioja province, northwestern Argentina

Sigmodontine rodents are well represented in northwestern Argentina, but information regarding their distribution in Blood Pressure Monitors La Rioja is scarce.We add new information for seven species from seven localities in the Famatina range.These new records were obtained using both captures and owl pellet analysis.We cite the first record of N

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Studies on bioactive components from Chinese medicinal plants

Several novel bioactive components isolated from Chinese medicinal plants will be presented.These include novel maytansinoid tumor, inhibitors, some new ent-kaurane and rosane diterpenoids from Mallotus anomalus Meer et Seats Chun (Euphorbiaceae), as well asnovel insecticide, stemona alkaloids from Stemona parviflora C.H.Wright (Stemonaceae).Both a

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