anaerobic digestion is the breakdown of biodegradable organic material by microorganisms in the absence of oxygen or in an oxygen-starved environment.this technology is superior to the landfilling and also the aerobic composting. the aim of the present study was to examine whether the effluent volatile fatty acids from the anaerobic acidogenesis of the food waste can be used du to its high valu...

compressed biscuits (cbs) were developed using wheat flour, soy flour, sugar, oil and malt extract. combining of compression and dehydration technology were applied for production. packaging cbs using vacuum packaged, use of oxygen absorber (oa) and identical samples were aerobically packaged and stored at ambient and elevated (40°с) temperature for 12 weeks. the effect of different packaging a...

background: various studies are seeking to find new methods to improve techniques of laryngeal mask airway (lma) insertion and reduce possible complications. in this study, we embarked on a clinical study to investigate the advantages of a new insertion method of laryngeal mask and to compare it with the classic method. materials and methods: two hundred patients aged 20-60 years old in 2012 we...

background: lead, an example of heavy metals, has, for decades, being known for its adverse effects on various body organs and systems such that their functions are compromised. objective: in the present study, the ability of lycopersicum esculentum on decrease toxic effects of lead acetate on plasma superoxide dismutase, catalase and malondialdehyde in rat. lead to adversely affect the liver t...

objective(s):gentamicin sulphate (gs) nephrotoxicity seems to be related to the generation of reactive oxygen species. there is evidence that oxygen preconditioning increases the activity of antioxidant enzymes. materials and methods: forty eight female rats were divided into 6 groups (n=8) as follows: group 1 was the control, group 2 received daily gs, groups 3,4 and 5 received oxygen 2 hr/day...

background and purpose: oxygen therapy is one of the common treatments for neonates with cardiopulmonary disease. the aim of this study was to evaluate adherence to oxygen therapy standards by nurses before, during and after using oxygen hood. methods: in this cross-sectional study, 250 cases of nursing care were evaluated before, during and after administration of oxygen hood therapy in preter...