background and objectives:   iranian chronic hbv carrier’s population has shown a unique pattern of genotype d distri- bution all around the country. the aim of this study was to explore more details of evolutionary history of carriers based on structural surface proteins from different provinces. materials and methods: sera obtained from 360 isolates from 12 different regions of country were u...

background: when provisional restorations are worn for long term period, the adhesion of bacteria becomes a primary factor in the development of periodontal diseases. the aims of this study were to evaluate the surface roughness and bacterial adhesion of four different provisional fixed prosthodontic materials. methods: ten cylindrical specimens were prepared from bis-acrylic composites (previs...

metal matrix composites have been widely used in industries, especially aerospace industries, due to their excellent engineering properties. however, it is difficult to machine them because of the hardness and abrasive nature of reinforcement elements like silicon carbide particles (sicp).in the present study, an attempt has been made to investigate the influence of spindle speed (n), feed rate...

this paper presents a hybrid method for the optimization of forging process of an aerofoil blade. preform shape and die parting-line angle are optimized in order to minimize the volume of the unfilled die cavity, material waste, forging forces. the overall optimization scheme used in this research work includes a multi-objective approach that is combination of response surface and finite elemen...

background: molecules expressed on the surface of infected erythrocytes (ie) with plasmodium falci-parum play important roles in malaria pathogenesis and immune evasion. some of these molecules are specific adhesive ligands mediating adhesion of ie to the vascular endothelium. in the current study, the antigens exposed on the surface of ie with different isolates and various binding subpopulati...