Light olefins, which are vital components for the petrochemical industry, are traditionally obtained through the refinement of crude oil. However, the rapidly increasing demand of oil-based chemicals calls for the development of new technologies based on alternative natural sources. Among these processes, the methanol-to-hydrocarbons (MTH) technology is one of the most promising and currently e...

Wanner, Adam, Eliana S. Mendes, and Neal D. Atkins. A simplified noninvasive method to measure airway blood flow in humans. J Appl Physiol 100: 1674–1678, 2006; doi:10.1152/japplphysiol.01349.2005.— Our laboratory has previously developed and validated a noninvasive soluble gas uptake method to measure airway blood flow (Q̇aw) in humans (Onorato DJ, Demirozu MC, Breitenbücher A, Atkins ND, Chedi...

l,2Methylenedloxy-6-methyl-4H-dibenzo [de,g] quinoline -4,5(6H)-dione together with 5-hydroxy-4',7-dimethoxyflavone; /J-sitosterol, stigmasterol and esters from the lauric and stearic acids, were isolated from the stem of Piper manausense Yunk (Piperaceae). INTRODUCCIÓN Aporphine alkaloids have been studied extenslvely because these compounds are of pharmacological significant importance (1). T...