background and aims . dentists administer thousands of local anesthetic injections every day. injection to a highly vascular area such as pterygomandibular space during an inferior alveolar nerve block has a high risk of intravascular needle entrance. accidental intravascular injection of local anesthetic agent with vasoconstrictor may result in cardiovascular and central nervous system toxicit...

Background and Aim: Despite the increasing prevalence of infection with some blood-borne viruses, no standard precautions have been developed so far based on the Health Belief Model (HBM). This study aimed to assess, based on the HBM, the predictors of adherence to standard precautions in preventing needle stick injuries among the Personnel of Sanandaj Teaching Hospitals, Sanandaj City, Iran in...

The objectives of this study were to measure the Furcation Entrance Dimensions of first and second permanent molars in Malaysian samples and to compare the Furcation Entrance Dimensions with the blade widths of periodontal Gracey’s curette used for root surface instrumentation. A total of 199 extracted permanent teeth were measured, which comprised of 51 mandibular first molars, 51 mandibular s...

background: one of the means of assessing dose to patients from computed tomography (ct) procedure is through the determination of the skin entrance dose (esd) with the appreciation of the concern that ocular exposure effects from ct scan includes possible induction of cancer and cataract. due to the relatively more recent introduction of ct scans, little work has been done in this area in the ...

introduction. human resources are the most important source. it has a basic role in our country especially as a developing country. postgraduate entrance exams are difficult exams due to fewer universities’ capacity, its costs and length, it can train our future builders as well. this study will describe & explain the statistical and evaluation criteria of ph.d. entrance nursing exam in 1379. m...

In the turfgrass industry, the need for salinity tolerant turfgrasses is increasing because of the increased use of saline and non-potable water. Greenhouse container experiments were conducted to determine the relative salinity tolerance and growth responses of eleven native populations of tall fescue (Festuca arundinacea Schrub) (TF), including: Semirom, Mashhad, Sanandaj, Yasuj, Yazd Abad, D...

despite various researches on different aspects of world heritage sites in iran approved by unesco, little has been done on the landscapes of these valuable sites and complexes and their importance in achieving place identity. this is whilst the landscape of each complex is a valuable resource, and is similar to the work itself in need of conservation and maintenance. the importance of this iss...

the rotor of enegelberg whitener was equipped with a screw conveyor to reduce broken rice percentage. according to preliminary experiments this modification could reduce broken rice percentage about 2.5%. further experiment was performed to determine the effect of rotor speeds and blade positions on white rice quality. to do this, five rotor speeds, consisting 500, 600, 700, 800 and 900 r.p.m a...