background split- thickness skin graft is one of the most common operations in plastic surgery. it is always painful and patient discomfort from donor site often is more significant than recipient site. there is not still a standard method for treatment of the donor site. the purpose of this study was to determine the best method of dressing the donor site among three different methods with res...

placental site trophoblastic tumor (pstt) is a very rare variant of gestational trophoblastic tumor. it can occur after normal termination of pregnancy or spontaneous abortion and ectopic or molar pregnancy. there is a wide range of clinical manifestations from a benign condition to an aggressive disease with fatal outcome. one of the most important characteristics of pstt, unlike other forms o...

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A Fourier series non-stationary coherency model with respect to the site conditions for horizontal component was developed. The evolution of achieved using parameters related site, inter-station distance, and time. First, based on simulation a ground-motion field considering wave-passage effect site-response effect, approach used estimation wavelet transform is presented. Subsequently, formulat...

the destructions caused by many recent earthquakes shows that the subsurface structure directly affects the ground motions. especially in areas with possible seismic hazard expectation, expansion of cities has come up with detailed vulnerability analysis. therefore, site response investigation is a key step in every microzonation study. one of the best approaches for understanding the geologica...