The cytotoxic chloroform fraction of Euphorbia aellenii afforded two cycloartane type triterpenes — cycloart-25-en-3,24-diol (1) and 24-methylene-cycloartan-3-ol (2) — for the first time from this plant. Preparation of cycloartane derivatives, 3, 24-O-diacetyl-cycloart-25-en as compound 3 and 3-O-acetyl-24-methylene-cycloartan (4) were conducted by acetylating of 1 and 2, respectively. The ...

In [BPT] wurde ein informationstheoretischer Ansatz für Systeme zur Bilderkennung vorge-stellt. Es wird eine erste Implementierung dieses Ansatzes mit vernetzten SINIX-MX2-Rech-nern beschrieben. /

A competitive enzyme-linked immunosorbent assay (C-ELISA) which detects antibodies unique to rinderpest virus (RPV) has been developed. This test can differentiate antibodies against RPV and those against peste des petits ruminants virus. The recombinant RPV hemagglutinin (H)-protein C-ELISA (recH C-ELISA) is based on the ability of a well-characterized monoclonal antibody (MAb) produced with t...

A new species of Onosma L. (Boraginaceae: Lithospermeae), from the Hakkari province eastern Turkey, is described and illustrated. The endemic distributed in a narrow area Sat Mountains. Taxonomically closest relative satensis sp. nov. O. polioxantha Rech. f. which also occurs Turkey. In addition, it primarily distinguished by its navicular leaves, longer reticulate cauline pedicels calyx, dense...