Nicotine is one of the most important substances in cigar and the cigarrete Smoke. Smoking may cause an increase in blood pressure and affecting respiratory functions. In this study the effect of nicotine on isolated aorta and trachea of rat and also it's effect on the bronchial resistance, was investigated. In the in vitro experiments, trachca or aorta was removed and placed in an isolated tis...

to evaluate the effect of combined use of weeds control an different mechanical methods on weeds number and dry weight in cotton , a split plot experiment based on randomized complete block design was conducted at the region of boshruyeh in 2012. experimentals factors were tillage methods as main-plots with three levels, including conventional tillage, no-till system and minimum tillage; and di...

Adnexal masses are spectrum of diseases from benign non neoplastic and neoplastic masses to malignant neoplasms. Endovaginal ultrasonography (US) is the fisrt and invaluable modality for assessment of adnexal masses because it is available and has a high negative predictive value. Important morphologic features are solid (vascularized) tissue, vascular and thick septations, and papillary projec...