Marine cyanobacterial mats were cultured on coastal sediments (Nivå Bay, Øresund, Denmark) for over three years in a closed system. Carbonate particles formed in two different modes in the mat: (i) through precipitation of submicrometer-sized grains of Mg calcite within the mucilage near the base of living cyanobacterial layers, and (ii) through precipitation of a variety of mixed Mg calcite/ar...

It has been well established that a certain amount of ingested starch can escape digestion in the human small intestine and consequently enters the large intestine, where it may serve as a carbon source for bacterial fermentation. Thirty-eight types of human colonic bacteria were screened for their capacity to utilize soluble starch, gelatinized amylopectin maize starch, and high-amylose maize ...

In northeastern Austria, marshlands have been turned into the most productive arable land of the country. As a result, most headwater streams show structurally degraded channels, lacking riparian buff er zones, which are heavily loaded with nutrients from the surrounding crop fi elds. Th e present study examines whether longitudinally restricted riparian forest buff ers can enhance the in-strea...

According to UNEP and FAO reports, the fishing nets abandoned in seas around world represent approximately 10% of plastic waste present oceans. These nets, also called ghost can be degraded over time, releasing microplastics contaminating environment. Studying presence amount an area impacted by Gulf Cefalù, northern coast Sicily, Italy help understand level contamination these zones. The plann...

The geologic disposal of radioactive waste could lead to confined conditions in which cementitious materials impose a moderate alkaline pH, the rocks supply sulfate ions at rather low concentrations. In this context, purpose work was study degradation cement pastes under such using non-renewed 30 mmol/L Na2SO4 solution without pH regulation. Samples were investigated through laboratory testing ...

The aye-aye is considered the most widely distributed lemur in Madagascar; however, the effect of forest quality on aye-aye abundance is unknown. We compared aye-aye presence across degraded and non-degraded forest at Ranomafana National Park, Madagascar. We used secondary signs (feeding sites, high activity sites) as indirect cues of aye-aye presence and Canarium trees as an indicator of resou...

Background. The carbonate rocks represented by organogenic structures of the Voronezh horizon (D 3 vr) at Volostnovsky, Vostochno-Volostnovsky and Yuzhno-Volostnovsky fields in northern part East-Orenburg oil gas bearing region Volga-Ural province are studied. Aim. To establish a connection between lithological types their reservoir properties within deposits. Materials methods. Stock materials...

the main theme to conduct present research work was to evaluate the effect of anaerobic granular sludge in degradation of two azo dyes. the study was evaluated in batch experiments where anaerobic and aerobic conditions were integrated by exposing anaerobic granular sludge to oxygen. under these conditions, the azo dyes were reduced, resulting in a temporal accumulation of aromatic amines. subs...