The laccase activity induced by copper ions in Trametes versicolor by two inducers was studied and the aims were to show that it is possible to obtain a high laccase activity in almost 12 of the enzymes product using a basic culture medium but different copper concentration. Laccase was inducted by 2,5xylidine and copper sulfate. Semi-purification of the crude laccase was carried out through pr...

Abstract Polycyclic aromatic hydrocarbons (PAHs) are organic chemicals that consist of carcinogenic and mutagenic properties, which considered as high-priority persistent pollutants (POPs). Their source is due to an incomplete burning fossil fuels materials. In the present study, distribution concentrations 16 priority PAHs in sediments Tampamachoco lagoon Tuxpan River estuary at Gulf Mexico we...

This study deals with the finds of fibulae from Hallstatt period sites Vekerzug culture Eastern Hungary and Southern Slovakia. The majority come graves, rest are either stray or settlement finds. Providing a more complex overview was at centre our interest, focused mainly on cultural spatial analysis, their possible relation to specific gender age category burial individuals importance for cost...

Somatic mtDNA mutations and deletions in particular are known to clonally expand within cells, eventually reaching detrimental intracellular concentrations. The possibility that clonal expansion is a slow process taking a lifetime had prompted an idea that founder mutations of mutant clones that cause mitochondrial dysfunction in the aged tissue might have originated early in life. If, converse...