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چکیده به منظور بررسی اثر تنوع گیاهی و نوع منبع تغذیه ای بر تنوع و تراکم علفهای هرز و حشرات، کارایی مصرف نهاده ها ( نور، آب، عناصر غذایی) و عملکرد و خصوصیات کیفی چند گونه زراعی، آزمایشی به صورت کرتهای خردشده بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 1385-1384 و 1386-1385 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد. تیمارهای مورد بررسی دو منبع کود دامی و...
of the 5,655 accidents with casualty that had occurred during 1973 in teheran, 4,936 or 87. 3% were caused by the negligence on the part of the drivers. the most accident producing driving middle-aged men of 30- 39 years, who had recently acquired driving permit and were wage earners as drivers in the city of tehran. alcohol intoxication as the cause of the accident had been recorded in only o....
Extract Schizophrenia is a common psychiatric disease. Old theory that introduced Schizophrenia as a social disease and outcome of improper role of parents to some extant has changed. Some researchers believed that it is an infection disease. This preposition on Schizophrenia as a brain infection first introduced by Sigmund Freud-The father of psychiatric analysis-. Many of his students had...
brain tumors in elderly are increasing as the number of people, who comprise the older population, does.about half of the patients with brain tumors appear to be over 60 years of age.in this review article, glioblastoma multiform, as the most common malignant tumor of the central nervous system in elderly is discussed in details of definition, prognosis, diagnosis, treatment and differential di...
recently, using polymerase chain reaction (pcr) technique, the dna of cytomegalovirus was detected from depigmented white patches in patients with vitiligo. the reactivation of infection and occasional anti-cmv igm circulating among patients infected by cytomegalovirus has been reported for years. we have studied 26 patients with clinical signs and symptoms of vitiligo, some of whom had a histo...
learning a second or foreign language requires the manipulation of four main skills, namely, listening, reading, speaking, and writing which lead to effective communication. it is obvious that vocabulary is an indispensible part of any communication, so without a vocabulary, no meaningful communication can take place and meaningful communication relies heavily on vocabulary. one fundamental fac...
Background: Glaucomatous neuropathy is a type of cell death due to apoptosis. The p53 gene is one of the regulatory genes of apoptosis. Recently, the association between the p53 gene encoding for proline at codon 72 and primary open-angle glaucoma (POAG) has been studied in some ethnic groups. This study is the first association analysis of POAG and p53 codon 72 polymorphism in Iranian patients...
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