Abstract Chemical compositional data sets of archaeological artefacts are often analysed using standard statistical procedures. Adopting a different approach, we examine the major element oxides found in Parthian and Sasanian glazed pottery by identifying statistically important ratios conjunction with expert knowledge scientist during, rather than after, identification process. This results me...

The paper investigates how the surface relief of an implant affects cell behavior. Currently, most manufacturers claim key impact biocompatibility factor to be micro-roughness. We suppose that interaction between cells and implants also depends on such peculiarities as continuous or discontinuous topography, subcellular distance peaks presence porous oxide layer. have developed laser processing...

The three-dimensional structure of the regular surface layer of Bacillus sphaericus P-1 (T-layer) was determined to a resolution of ca. 2.5 nm by electron microscopy and image analysis. The T-layer has P4 symmetry, a lattice constant of 13 +/- 0.2 nm, and a thickness of ca. 8 nm. The reconstruction revealed three distinct domains: a major, a minor, and an arm domain. In the z-direction, the dom...

the first season of survey at qeshm, carried out during the winter of 2006, resulted in the identification of nine sites from the parthian and sasanian periods. the surface pottery from these sites suggests their trade and cultural relations with contemporary sites in the southern persian gulf and other areas. for instance, the parthian and sasanian glazed types in qeshm island are closely re...

it  is  the  tribal  structure  of  society  and  power  with  which  one  can  explain  many  developments  in  ancient  iran  in  particular  in  the  achaemenian  period.  the  ancient  authors  confirm  that  seven  families with various  names  played  an  important  role  in  political,  economic and  military  structures  of  persia  from  this time  up  to  the end of  sasanian  period....