This study is a continued investigation of the influence of ferrocene and its derivatives on trypsin activity. The goal was to examine the effect in vivo, by monitoring the growth of the bacteria Escherichia coli. The growth of the bacteria with the addition of ferrocene and derivatives of various concentrations was followed up spectrophotometrically, measuring changes in OD, correlating OD with the number of formed bacterial colonies and comparing the results as the mean generation time. The obtained results in relation to control experiments indicate a very strong inhibitory action of ferrocene and (dimethylaminomethyl) ferrocene, a medium or modest inhibitory effect of methyl 1'-acetamidoferrocene- 1-carboxylate and benzyl 1'-methoxycarbonyl-1-ferrocenecarbamate; influence of benzyl 1'-carboxy-1-ferrocenecarbamate is negligible, while 1'-acetamidoferrocene-1-carboxylic acid causes the increase in the growth of Escherichia coli.
The social space is an ambiguous concept, where the “material” component is strongly determined by the nature of it’s “social” component and where the organization of objects in a space and space itself corresponds to the social norms and human behaviour. We propose to study an organization and production of a social space of a specific hunter-gatherer society – the yamana society - on the base of the analysis of the social activities described in the ethnographic sources. The interdisciplinary ethnoarchaeological work will help us to find out if it is possible to identify archaeologically these regularities and to resolve some matters in study of a social organization in prehistory itself.
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