EMPERATURE-sensitive mutations, i.e., mutations which render enzymes ‘inactive only at certain temperatures. have proven to be extremely useful in genetic analyses. Such mutations are usually detected by the inability of an organism to grow or carry out a particular function at high temperatures. In the course of ethyl methanesulfonate (EMS) niutation studies a temperature-sensitive allele of t...

In order to prevent and reduce water pollution, promote a sustainable use, protect the environment and enhance the status of aquatic ecosystems, this article deals with the application of advanced mathematical techniques designed to aid in the management of records of different water quality monitoring networks. These studies include the development of a software tool for decision support, base...

The phenomenon of Cavitation gives rise to a number of interesting physicalchemical effects which can be employed to isolate and oxidize contaminants in water. The micro bubbles generated by pressure pulses inside a liquid act as small reactors, reaching extreme P-T conditions during short periods of time and generating highly oxidant radicals such as OH·. This chemical behaviour is analogous t...

Transformer is the main important equipment in electrical power system. Early stage detection of the transformer faults has great economic significance because it considered expensive equipment and it helps to maintain the continuous operation of the electrical power system. Transformer oil is used for two main purposes, one for insulating liquid and the other for cooling. Some physicalchemical...

1, IO-Phenanthroline interacts with certain zinc metalloenzymes to form enzymatically inactive protein-zinc-phenanthroline complexes exhibiting ultraviolet absorption maxima analogous to those observed for zinc ions and phenanthroline in aqueous systems (1). Such spectral changes offer a means of studying directly the chemical mechanism of the enzymatic inhibition resulting from such interactio...

In this work, the development of an integrated decision-making system for the assessment of cleaning interventions on marble architectural surfaces is presented. The suggested system resulted by the incorporation of a fuzzy logic model into GIS and its architecture includes: (a) a GIS based graphical user interface for features and attributes retrieval, management comparison, analysis and corre...

A cute liver failure (ALF) patients have a high risk of mortality. The elective treatment for ALF still is orthotopic liver transplantation. Donor organ scarcity and the associated high costs make transplantation possible for only about one third of the patients on the transplantation waiting list. Engineering a biological liver substitute is an interesting alternative to the traditional ALF th...

Biosorption of Cd(II), Ag(I) and Au(III) by cyanobacteria Spirulina platensis, of Au(II)—by Streptomyces spp. 19H, and of Cr(VI) and Cr(III)—by Arthrobacter species was studied by using the dialysis and atomic absorption analysis under various conditions. In particular, the impact of the following parameters on biosorption was studied: pH (for Ag, Cd, Au), living and non-living cells (for Cr), ...

The goal of this work was to determine the sustainability of the sea bass meat during its storage on ice in the period of twelve days by following sensory, physicalchemical and microbiological parameters of quality and hygienic safety. Thirty sea basses were researched for that goal on the 2, 4, 6, 9 and 12 day of storage on ice at 3o C. Sensory grade of quality was evaluated by Quality Index M...