Vol 22 No 1-4 (1993)

Articles

  • XML | PDF | downloads: 47 | views: 95 | pages: 1-10
    The quantitative measurements of Gc(P37, C=20); (‘p(P=4O, C=20); lgG(P=67. C= 50);IgA(P- 67,C: :50)and 1gM (P=67,(’=50) were carried out on patients with Favism and healthy individuals, both school boys, from the Caspian sea litlorals. Comparison of’ these groups revealed differences, significant for Gc (X2 =10.177), lgM(X2 9.6151), lgA(X2 9.2821), highly significant for IgG (X2=47.1228), and not significant for Cp(X2= 1.4762). The observed increase in the controls could be due to the environmental effects, e.g, the presence of different diseases which needs adaptation to high levels of’ serum proteins and the immunoglobulins. The normal range maintained in the patients is suggested to be due to positive selection inducing a developed immune response and producing better chances not to get affected by some other endemic infectious diseases such as malaria (P.falciparum).
  • XML | PDF | downloads: 58 | views: 83 | pages: 11-22
    A wild strain of Anopheles stephensi Liston (BAN-PR), originating from Bandar-Abbas, south of Iran, was submitted to selection with permethin at the adult stage. Ten successive generations of permethrin selection on the adults resulted in only 2.2 fold increase in tolerance. Crossing experiments on the selected and unselected strains indicated that the gene/genes for observed tolerance is inherited as an intermediate character with no indication of sex linkage. Synergist test on the selected strain indicated ~t oxidative detoxification might be the major mechanism in the selected in for the observed tolerance. The relationship between resistance to dieldrjn and malathion in perrnethnn selected strain was studied. The resalt indicated that there might he a positive correlation between resistance to dieldrin, malathion and permethrin in An.stephenesi from Bandar-abbas.
  • XML | PDF | downloads: 106 | views: 136 | pages: 23-36
    There are enormous quantities of unknown composition of hazardous wastes in Tehran without any control, safe disposal and treatment. This study was done to identify hazardous wastes and to control this wastes by establishing a treatment, storage and disposal facility. According to available statistics there are 4461 different industries in Tehran, out of which sample were chosen each having over ten employees. From the data collected, the quantity of liquid, solid and semi-solid industries hazardous wastes was 149050 tons all together, Of the mentioned total waste, a ratio of 46.64% is toxic, 30.84% is corrosive, 1.73% is ignitable and 20.79% of the waste shows other characteristics. About 40.83% of the produced waste is transported to the municipality site, 1.72% is incinerated against sanitary regulations, 1.96% is recovered of recycled, 37.19% is landfilled in place other than municipality site and some other wastes are disposed by unauthorized methods.
  • XML | PDF | downloads: 85 | views: 116 | pages: 37-50
    Car manufacturing industry accident’s rates from three major companies are analyzed. Totally 1325 accidents with 4 cases of fatality were recorded. Accident rates per 100 full-time workers have gradually increased from 5.3 to 8.7 during 3 years of study. Most of the accidents occurred during the primary hours of the work, Strains and sprains represented the most frequently occurring type of injury, accounting for 37.9% and the greatest number of injuries occurred by flying particles (3 1.6%), resulting in eye injuries. Other aspects of accidents in this industry are discussed and recommendations are given for their prevention.
  • XML | PDF | downloads: 75 | views: 101 | pages: 51-56

    Alport syndrome is a progressive hereditary nephritis leading to renal failure. Nearly all of the documents declare that Alport syndrome is inherited as X-linked dominant trait and reports of autosomal inheritance form is very rare. This paper presents an Iranian large Alport family with autosomal recessive inheritance. In our patients Alport disease was confirmed with electron microscopic studies of renal biopsies.