Sesquiterpene lactones ofPseudohandelia umbellifera
Flowerheads of P. umbillifera collected in May 1976 in the Dzhizak oblast in the budding flowering phase were extracted with chloroform. The concentrated extract was dissolved in ethanol and the solution was diluted with water to give a 60% ethanolic solution. After a day, the precipitate that had deposited was separated off. The combined lactones were extracted with benzene from the filtrate after it had been treated with petroleum ether (to eliminate essential oil). The mixture of substances isolated was separated by chromatography on a column of alumina (activity grade IV) in a ratio of i:i0.
Sesquiterpene lactones of Artemisia. Artecalin from A. californica and A. tripartita ssp. rupicola
Abstract Artecalin (I), a sesquiterpene lactone of the Santanolide group, has been found in Artemisia californica Less. (section Abrotanum) and in A. tripartita Gray ssp. rupicola Beetle (section Seriphidium). By removal of the elements of water, artecalin is converted into tuberiferin, a constituent of a plant of the tribe Cichorieae.
The denial of death and the out-of-the-body experience
The out-of-the-body experience is a phenomenon which continues to be reported and continues to be interpreted in many ways. It seems, however, that more attention is given to finding a spiritual base for this occurrence than a psychological understanding of it. This paper considers the psychological forces of denial as a suitable explanation for the OBE and suggests that these experiences may be understood as hallucinations caused by traumatic events rather than genuine previews of the afterlife. That is: “Do these people transcend their bodies and also time and space to acquire these experiences, or could it be that nothing has been transcended at all save the need to deny death and thus transcend its feared consequence, which is ‘not being’?”