Natural dimension stone processing generates large volumes of waste, which have a significant impact on the environment, as well efficiency and profitability stone-processing plant. The article presents characteristics waste produced result natural structure production process. Solid scraps sludge were distinguished. On basis performed analyses, it was shown that constitutes 10–35% in relation ...

Abstract Dimension stone is natural rock prepared for building use. It rapidly colonised by microorganisms that cause discoloration (mainly cyanobacteria, algae and fungi) structural damage. Microbial mobilisation of ions leads to new superficial or internal deposits, weakening the structure. Cyanobacteria fungi may penetrate, filling pores creating spaces. Lichens, fungus/phototroph associatio...

BACKGROUND This study was conducted to compare the linear dimensional accuracy of die materials before and after disinfection of the impression. Type IV and V conventional dental stone, type IV-resin impregnated and copper-plated die materials were studied. MATERIALS AND METHODS A stainless-steel master die analogs to a complete veneer crown preparation with three scribed lines (I: vertical, ...

OBJECTIVES To compare the safety and efficacy of tamsulosin, alfuzosin, and their combinations with methylprednisolone, in the medical management of lower ureteric stones. PATIENTS AND METHODS Between September 2012 and June 2014, patients diagnosed with a single lower ureteric stone of ⩽10 mm (longest dimension) were enrolled. Patients with urinary tract infection, severe hydronephrosis, pre...