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Articles by M.R. Abai
Total Records ( 2 ) for M.R. Abai
  H. Vatandoost , S. Gholizadeh , M.R. Abai and E. Djavadian
  The effect of torn bednets treated with three dosages of cyfluthrin 5% EW, deltamethrin 10% SC and permethrin 10% EC were evaluated under laboratory condition in. The objective of the present study was to observe the effect of impregnated torn bednets on the number of bites by An. stephensi. A glass tunnel test was designed to induce hungry female mosquitoes to pass through holes cut in the pyrethroid treated nets. A guinea pig used as bait to attract mosquitoes through circular holes in the netting. With untreated netting, 81-95% of laboratory-reared females passed through the holes overnight, 75-93% blood-fed successfully and 0.36-4% died. When the netting was treated with cyfluthrin at doses of 25, 50 and 100 mg a.i. m-2, the entry Index (the proportions that passed through the holes overnight) were 43.37, 41.82 and 23.72%; mortality rates were 66.31, 81.45 and 95.99%; and the feeding rate were 16.13, 9.82 and 1.09%. Experiments with deltamethrin treated nets at dosages of 12.5, 25 and 50 mg a.i. m-2, the entry index was 78.10, 61.54 and 27.34%, respectively, mortality rates were 53.26, 58.85 and 82.35%; blood feeding rate was 46.72, 31.15 and 13.49%. When the netting was impregnated with permethrin at dosages of 200 and 500 mg a.i. m-2, the entry index was 33.58 and 14.95%; mortality rates were 93.80 and 100% and blood-feeding rate was 5.11 and 0.36%. In conclusion it should be stressed that efficacy of pyrethroid impregnated bednets using ‚ÄúTunnel Tests”? showing acceptable protection rate both in lower and higher dosages as well as cause dead in the blood-fed mosquitoes. In addition, the higher dosages of these three pyrethroids provided good levels of protection against An. stephensi.
  S. Azari-Hamidian , M.R. Abai , K. Arzamani , H. Bakhshi , H. Karami , H. Ladonni and R.E. Harbach
  In order to study mosquitoes in North Khorasan Province, northeastern Iran and assess the zoogeographic affinities of the Iranian and Middle Asian fauna, mosquito surveys were conducted in the province during 2005-2009. Adult mosquitoes were collected from resting sites and while landing on human and dog bait by means of aspirator. Larvae were collected by means of pipette and dipper using the standard dipping technique. In total, 1,336 mosquito specimens, including 682 adults and 654 third- and fourth-instar larvae, were collected. Fourteen species representing five genera were identified: Anopheles claviger, An. maculipennis, An. superpictus, An. pulcherrimus, Culex hortensis, Cx. mimeticus*, Cx. modestus*, Cx. perexiguus*, Cx. pipiens*, Cx. theileri, Cx. tritaeniorhynchus, Culiseta longiareolata, Ochlerotatus caspius* and Uranotaenia unguiculata (asterisks indicate new occurrence records for the province) based on morphology and An. maculipennis based on the internal transcribed spacer 2 ribosomal DNA (ITS2 rDNA) sequence. The data show that 65% of the anopheline fauna of Middle Asia occurs in Iran, however at least 15 Anopheles taxa found in Iran are not recorded in Middle Asia. Only seven (28%) of the aedine mosquitoes recorded in Middle Asia are found in Iran and three species that occur in Iran are not found in Middle Asia. About 77% of the Middle Asian species of Culex occur in Iran whereas the Iranian fauna includes nine species that are not recorded in Middle Asia. The species of Coquillettidia, Culiseta and Uranotaenia that are found in Iran are also found in Middle Asia.
 
 
 
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