This study undertook laboratory incubation approach to examine abiotic and biotic factors potentially influencing the bioweathering of Egyptian dimension stones, namely Nubian sandstone and Theban limestone. The dynamic and efficiency of metal release were assessed by means of bioleaching experiments (quantification by inductively coupled plasma mass spectrometry), whereas potential element donor phases were identified by scanning electron microscopy (SEM-EDS). Overall, ... إقراء المزيد

this study done in urology depatrment , sohag university hospital , on 50 patients with calyeal stones the results was : the stone free rate was 81.25%for upper calceal, 78.95% for middle calceal and 65.4% for lower calyeal. إقراء المزيد