We investigated the crystal and structural behavior of several Cr-bearing spinels from the Archean chromitites of Amsaga (Mauritania). The chemical and structural data testified a retrograde metamorphism from amphibolite to greenschist facies, witnessed by relative changes in the amount of all the major oxides (Cr, Al, Mg, Fe2+, Fe3+), the relative proportion of Fe/Fetot as well as the structur...

In this study we have demonstrated the variations of carbohydrates and phenolic compounds present in the leaves and stems of ‘Kinnow’ mandarin (Citrus reticulata Blanco) trees in alternate bearing cycle and the possible involvement of these compounds to flower bud formation process. The amounts of these compounds were determined in the leaves and stems of “on” and “off” trees  monthly  from Nov...

As a rule, public buildings should have higher safety level compared to residential ones. Hence, using base isolation systems is an effective and widely known way for improving dynamic response of such buildings. The idea of base isolation was known hundreds years ago, however practical implementation of base isolators started in the last few decades. The main advantage of a base isolation syst...

background: candida albicans is one of the most important opportunistic pathogens that suppress immunologic mechanisms of the host. it is speculated that structural and secretory proteins of c. albicans have immunomodulatory effects in cancer. objective: to evaluate the effects of c. albicans structural and secreted proteins on intratumoral cd4/cd8 ratio as well as the survival rate in balb/c t...

INTRODUCTION Long-term success of load-bearing implants require solid fixation of the implant to the host bone by the process of osseointegration. Osseointegration is achieved by the growth and mineralization of bone tissue onto and into the textured surface of implants. According to current theories on tissue differentiation, peri-implant tissue formation and subsequent mineralization are depe...

Cortical bone, as the principal structural component of the human body, functions in both a load-bearing and protective capacity. As a material, cortical bone has been the subject of mechanical investigation and characterization for well over a century, and the time dependent nature of this material’s mechanical response to loading is well documented. To model this time-dependent behavior, many...

In this paper, the structural behavior of beam joint using bearing bolts was investigated by bending test. From test results, slip against linear that high strength bolts, rotation angle increases with increase clearance bolt holes and decrease depth were confirmed. addition, evaluated accounting for slip, shifting range from contact to pressure state rotational stiffness under pressure.