introduction: second national medical sciences olympiad was done in shiraz in august 2010 with aim of indentifying scientifically talented individuals, motivating students and orienting extracurricular activities. this olympiad was done in 3 areas, basic sciences, clinical sciences and management. in clinical sciences, we used tosce (team objective structured clinical examination). in this arti...

bronchial leiomyoma is extremely rare. to date less than 60 cases have been reported in the world literature. the presented case here is a 30 year old woman who had been treated for bronchial asthma for several years. her chest radiograph showed bulluos emphysematous changes in the right lung and computer tomography scan found the tumor in the right main bronchus near carina. diagnosis was made...

background: different studies have shown that inadequate and unbalanced intake of nutrients including micronutrient and macronutrient, have negative effects on exercise performance and optimal ability; besides, it decreases physical efficiency in athletes. the present study aimed to assess the nutritional status and body composition of female athletic students in isfahan university of medical s...

All common genome-wide association (GWA) methods rely on population structure correction, to avoid false genotype-to-phenotype associations. However, population structure correction is a stringent penalization, which also impedes identification of real associations. Using recent statistical advances, we developed a new GWA method, called Quantitative Trait Cluster Association Test (QTCAT), enab...

In this work, we have shown the important role of the finite-size correction to the work function in predicting the correct positions of the centroid of excess charge in positively charged simple metal clusters with different rs values (2 ≤ rs ≤ 7). For this purpose, firstly we have calculated the selfconsistent Kohn-Sham energies of neutral and singly-ionized clusters with sizes 2 ≤ N ≤ 100 in...

We propose a simple approach, the multiplicative background correction, to solve a perplexing problem in spotted microarray data analysis: correcting the foreground intensities for the background noise, especially for spots with genes that are weakly expressed or not at all. The conventional approach, the additive background correction, directly subtracts the background intensities from foregro...

Background The contrasting groups' standard setting method is commonly used for consequences analysis in validity studies for performance in medicine and surgery. The method identifies a pass/fail cut-off score, from which it is possible to determine false positives and false negatives based on observed numbers in each group. Since groups in validity studies are often small, e.g., due to a limi...