The aim of this study was to elucidate the mechanism of the healing process mediated by the flavonic fraction of Bidens aurea on chronic gastric ulceration induced by 5% acetic acid in rats. The diethyl ether extract (125 and 62.5 mg kg-1 body weight) was administered in a single doses, 7 and 14 days after provocation of lesions. Our results demonstrated that both doses significantly decreased ...

Prompt detection of declines in abundance or distribution of populations is critical when managing threatened species that have high population turnover. Population monitoring programs provide the tools necessary to identify and detect decreases in abundance that will threaten the persistence of key populations and should occur in an adaptive management framework which designs monitoring to max...

Genetic algorithm and partial least square (GA-PLS) and kernel PLS (GA-KPLS) techniques were used to investigate the correlation between retention indices (RI) and descriptors for 117 diverse compounds in essential oils from 5 Pimpinella species gathered from central Turkey which were obtained by gas chromatography and gas chromatography-mass spectrometry. The square correlation coefficient lea...

* Institut für Pharmazeutische Biologie der Universität Heidelberg, Im Neuenheimer Feld 364, D-6900 Heidelberg. Bundesrepublik Deutschland ** Organisch-Chemisches Institut der Universität Heidelberg, Im Neuenheimer Feld 270, D-6900 Heidelberg. Bundesrepublik Deutschland Z. Naturforsch. 43c, 328-336 (1988); received January 20, 1988 Pimpinella anisum, Umbelliferae, Pseudoisoeugenols, Tissue Cult...

The aim of this paper is to present recent advances in the microbotanical analyses an organic residue on a potsherd from late Holocene hunter-gatherer site Argentine Patagonia, which first evidence kind for processing starchy food. Standard methods were carried out starch grain recovery and morphometric analysis, care being taken prevention cross-contamination evaluation post-depositional facto...