â â â  research in arabic language & literature â â â â â â â  biannual journal â  of the f oreign languages faculty â â of the university of isfahan â â â â â  issue 7, autumn & winter 2012-2013 â â â  issn: 2008-6466 electronic issn: 2322-4649 â  â  â  â  this journal is indexed in below sites: â  â  bjm electronic database http://uijs.ui.ac.ir/rall â  doaj: directory of open access journals ...

åÌÓ„Ë ÚÎË (Hemiptera: Aphididae), Í‡Í Ë ÔÓ ̃Ë ̇ÒÂÍÓÏ ̊ ÓÚfl‰‡ Homoptera, ÔËÚ‡ ̨ÚÒfl ÙÎÓ ̋ÏÌ ̊Ï ÒÓÍÓÏ ‡ÒÚÂÌËÈ [2]. Ç Ò‚flÁË Ò ÚÂÏ, ̃ ÚÓ ̋ ÚÓÚ ÒÓÍ ÒÓ‰ÂÊËÚ ÎË ̄ ̧ 20% ÌÂÁ‡ÏÂÌËÏ ̊ı ‡ÏËÌÓÍËÒÎÓÚ, ÌÂÓ·ıÓ‰ËÏ ̊ı ‰Îfl ÌÓχΠ̧ÌÓ„Ó ‡Á‚ËÚËfl Ë ÊËÁ̉ÂflÚÂÎ ̧ÌÓÒÚË ÚÎÂÈ [3], ÔÓÒΉÌË “‚ ̊ÌÛʉÂÌ ̊ ‚ÒÚÛÔ‡Ú ̧” ‚ ÒËÏ·ËÓÚË ̃ÂÒÍË ÓÚÌÓ ̄ÂÌËfl Ò ̋̉ӈËÚÓ·ËÓÚË ̃ÂÒÍËÏË ·‡ÍÚÂËflÏË Ó‰‡ Buchnera, ÍÓÚÓ ̊ ‚ÓÒÔÓÎÌfl ̨Ú Ì‰ÓÒÚ‡ ̨ ̆ËÂ...

The years 1895 to 1898 were momentous for their impact on health and human well beings. First, Wilhelm Roentgen noted a glowing fluorescent screen, caused by invisible rays. This event subsequently led to the discovery of X-rays in 1895, and thus the birth of the “atomic age”. Next Becquerel’s investigations of these mysterious rays led to his experiments with uranium salt crystals. He th...

Objectives—Occupational asthma is the principal cause of respiratory disease in the workplace. The enzymes phytase and â-glucanase are used in the agricultural industry to optimise the nutritional value of animal feeds. A relation between these enzymes and occupational asthma in a 43 year old man was suspected. Methods—Inhalation challenge tests were performed with the enzymes phytase, â-glucan...

The interval between administration of carcinogen and development of sarcomas was significantly shorter in male Fischer rats that received bilateral injections into thigh muscles of a combination of 10 mg of Ni3S2 and 5 mg of 3,4-benzpyrene (Group C) than in rats that received only 10 mg of Ni3S2 (Group A) or only 5 mg of 3,4-benzpyrene (Group B). No sarcomas developed in control rats (Group D)...