background: percutaneous balloon mitral valvotomy (bmv) is the gold standard treatment for rheumatic mitral stenosis (ms) in that it causes significant changes in mitral valve area (mva) and improves leaflet mobility. development of or increase in mitral regurgitation (mr) is common after bmv. this study evaluated mr severity and its changes after bmv in iranian patients. methods: w e prospecti...

in this section of the journal ,a summary of theses completed at the m.b.a level is presented. the title of these are: 1- the application of technical analysis in selecting common stocks by mr. hasan amiri . 2- determination of factors influencing the capital struture of corporations listed in tehran stock exchange. by mr. omid pourheidari. 3- the adequacy of the stock price index of tehran sto...

The roughness of the interlayer concrete, which is an important index for construction dams, affects mechanical properties interface between new and old concrete. traditional monitoring method cannot satisfy field measurements. Therefore, this paper proposes a concrete surface measurement based on 3D laser scanning technology implements point cloud calculations. Two layers specimens with same m...

background access to appropriate images of fetal brain can greatly assist to diagnose of probable abnormalities. the aim of this study was to compare the suitability of t2-true fast imaging with steady state free precession (t2-trufi), and t2-half-fourier acquisition single-shot turbo spin-echo (t2- haste( magnetic resonance imaging (mri) to extract the fetal brain using the level set algorithm...

magnetorheological (mr) dampers have the advantage of being tuned by low voltages. this has attracted many researchers to develop semi-active control of structures in theory and practice. most of the control strategies first obtain the desired forces of dampers without taking their dynamics into consideration and then determine the input voltages according to those forces. as a result, these st...