To assess the effect of micro-organisms on the reduction of wax appearance temperature (WAT) of waxy crude oil, some appropriate strains were obtained from contaminated samples exposed to hydrocarbon compounds for a long time. By conducting some screening tests, four strains were chosen and aerated in a bioreactor; they were then grown in some hydrocarbon environments in order to produce biolog...

Ensuring the health of aquatic ecosystems and identifying species at risk from the detrimental effects of environmental contaminants can be facilitated by integrating analytical chemical analysis with carefully selected biological endpoints measured in tissues of species of concern. These biological endpoints include molecular, biochemical, and physiological markers (i.e., biomarkers) that when...

Introduction Perfluorocarbon (PFC) emulsions have been widely used for cell tracking studies [1,2] and many other biological applications [3]. In contrast to conventional H contrast agents, F markers provide unambiguous signal in vivo due to the low natural abundance of fluorine in living organisms. Furthermore, fluorine markers can possess a unique spectral signal, a further advantage of F MR....

background hepatocellular carcinoma (hcc), a major fatal cancer worldwide, is induced by different etiological factors in the liver. objectives to gain insight into serum protein profiling of hcc with different etiologies. patients and methods we subjected the sera of hbv-hcc, hcv-hcc, non-b non-c-hcc patients, and healthy volunteers to two-dimensional gel electrophoresis (2-de) and liquid chro...