Mining nonmetallic sand, gravel, and river stones in a channel has previously caused damage to the itself surrounding environment. Technical studies are needed minimize mining channel. Ongkag Dumoga River is planned be location of non-metal material for gravel stone. The research method was carried out by geodesic mapping determine profile cross-section, hydrological analysis with return period...

The Red Sea Alcyonarian Heteroxeniafuscescens (Ehrb.) consists of a pinkish brown fleshy syndete up to 5 cm. in length, firmly attached to a stone or dead coral, from which grows a mass of autozooids with columns 2-4 cm. long and 2-3 mm. in diameter (Fig. 1). The first physiological observations on a xenid were made by Keller (1883) on a brown species from Suez that he considered to be H. fusce...

The working performance and durability of medium low strength machine-made sand concrete with different stone powder contents were studied, the optimal range content in was explored. results show that an appropriate amount has a significant impact on concrete, which can increase volume slurry density thereby improving crack resistance reducing permeability chloride ions. Comprehensive analysis ...

Dissolution of gallstones consisting of cholesterol, calcium carbonate, or calcium phosphate in different solvents left an amorphous organic gel-like substance (the matrix). Matrix from cholesterol stones could be colourless but was usually orange, yellow, or brown while that from calcium carbonate and calcium phosphate stones was almost invariably coloured black or dark brown. These pigments w...

It is also profitable to wear about them gemmes and precious stones, as the The custom of wearing or holding an amulet during pregnancy and childbirth is probably as ancient as the need for comfort and reassurance. For reasons not entirely clear, precious and semi-precious stones throughout recorded time have been considered to possess protective virtues."'8 The medical benefits ascribed to eac...

introduction & objective: after urinary tract infection and prostatic disorders , the urine stones are the third common genitourinary diseases. demographic, environmental and genetic factors affect urine stone formation. the aim of our study is to survey epidemiologic factors in patients with urinary stones referring to educational hospitals of hamadan during 2010-2013.      materials & methods...