Methods Following a standardized physical exam using sterile gloves and a sterile stethoscope, bacterial contamination of the following regions were assessed using contact plates: stethoscope diaphragm, stethoscope tube, fingertips, thenar region, hypothenar region and back of physician’s dominant hand. Total aerobic colony count (ACC) were determined on digital photographs using a counting tool.

background rice is common foodstuffs in iran. aflatoxin contamination of rice can be hazardous human health and causes economic problems. objectives determination of aflatoxin levels was investigated on the imported rice which is consumed as the main food in this area. materials and methods two hundred samples of imported rice consisting; yellow (100) and white (100) rice were selected randomly...

Man is a creature of his environment. He shares its hazards with many other living organisms and for most of the time achieves a measure of peaceful coexistence with them. But the balance is a delicate one, and very minor changes, such as an imperceptible rise in humidity or fall in temperature, may upset it surprisingly (Christie, 1971-2). Man is also a great manipulator of his environment and...

objective: fusarium species are prevalent contaminants of foodstuffs and agricultural crops.  they produce fumonisins, which are carcinogenic mycotoxins. the present study has evaluated maize and wheat samples from ten provinces in iran that were contaminated with fusarium species. special attention was paid to the ability of the isolates to produce fumonisin b1 (fb1) as a public health hazard....

background: depleted uranium (du) is uranium with low content of u 235 produced as a result of uranium enrichment. du has high density (19.05 g /cm3), which is 2.54 more than iron, so it’s high penetrating power makes it preferable as emanations with high penetration power. it was used in second gulf ware in 1991 for first time. the radioactivity of soil, plants, fruit, meat, milk and water is ...