The anode of a microbial fuel cell (MFC) was formed on a graphite electrode and immobilized Gluconobacter oxydans VKM-1280 bacterial cells.Immobilization was performed in chitosan, poly(vinyl alcohol) or N-vinylpyrrolidone-modified poly(vinyl alcohol).Ethanol was used as substrate.The anode was modified using multiwalled carbon nanotubes.The aim of
The presence of copia-like transposable elements in seven coffee (Coffea sp.) species, including the cultivated Coffea arabica, was investigated.The highly conserved domains of the reverse transcriptase (RT ) present in the copia retrotransposons were amplified by PCR using degenerated primers.Fragments of roughly 300 bp were obtained and the nucle
Kit Retrofit Wild dog Lycaon pictus and lion Panthera leo populations in the Kruger National Park appeared to undergo an increase during a drought period in the early 1990s.Newly established packs, high adult survival and pup productivity contributed to an increase in the wild dog population and evidence for high predation success during the height