50 Jahre Elektroneninterferenzen

On the occasion of the anniversary a recollection is given of the history of the discovery of electron diffraction.

     

50 Jahre Phalloidin

Phalloidin, like the later-detected phallotoxins, consists of a cyclic heptapeptide backbone, the ring being crosslinked by a 2'-indolylthioether moiety (tryptathionine). After intraperitoneal administration--not per os--it will, after a short time, damage the liver specifically, presumably in consequence of its very tight binding to F-actin preventing its dissociation. This affinity can be utilized for a sensitive visual identification of F-actin by using fluorescent derivatives.     

IMO海环会第50次会议概要

2003年12月14日，IMO海环会第50次会议在伦敦举行。该次会议审议通过了加快淘汰单壳油轮的方案，其他议项措施还包括对油轮扩大运用状况评估方案(CAS)和提议制定禁止单壳油轮装运重质货油(HGO)的规则等。