in this study 100 cases of advanced periodontitis were compared with a control group of 100 persons. the parameters were the depth of the periodontal pockets, radiographic images, presence of inflammatory cells and different types of anaerobic bacteria in the pockets. the depth of pocket was measured by a sterile probe and the presence of inflammatory cells was determined through sterile curett...

background and objectives: heavy metals are considered as high risk biocides due to their harmful effects on human health, the environment and other living organisms. bacterial strains showing resistance to heavy metals has been used for removing such toxic materials from the environment. in this study we isolated and characterized a heavy metals-resistance halophilic bacterial strains from kal...

background: recent analyses of hospital outbreaks have documented the spread of resistance to imipenem, which is cur­rently a major problem among gram positive and gram-negative bacteria. the aim of this study was to describe the rate of gram- positive and gram-negative isolates resistance to imipenem as an antibiotic. methods: recorded files of 242 hospitalized patients with at least one sampl...

IliE fourtlh editioni of this already well know-n text-book of surgical treatment is hiighly recommIleInded. It wvill b)e greatly appreciated by the senior medical studenit and those post-graduate students wishinig to specialise in sur-gery. Anl effor-t to keep abreast of the ever-widening field of surgery has been miade; eacth chapter lhas been car-efully revisedl and many greatly amplified. U...

in this research work, the zinc extraction was investigated, using bioleaching process from a low grade zinc concentrate which was produced from the accumulated flotation tailings. zinc content was initially upgraded to 11.97% by flotation process. bioleaching experiments were designed and carried out by a mixed culture of acidithiobacillus ferrooxidans, acidithiobacillus thiooxidans, leptospir...

conclusions ethanol extracts of p. granatum (pericarp, leaves, flowers, seeds) have antibacterial effects against p. haemolytica which has shown resistance to all studied antibiotics. background continuous researches on drugs that solve the problem of growing number of resistant bacteria are important. objectives this research aims to investigate the effectiveness of anti-bacterial properties s...