the purpose of this study was to determine the influence of platform switching on stress distribution of two different implant systems using three-dimensional (3d) finite element models.six 3d finite element models were created to replicate two different implant systems with peri-implant bone tissue, in which six different implant-abutment configurations were represented: model xive-a: 3.8-mm-d...

PURPOSE Microgaps at the implant-abutment interface allow for microbial colonization, which can lead to peri-implant tissue inflammation. This study sought to determine the marginal accuracy of three different implant-zirconium oxide (zirconia) abutment configurations and one implant?titanium abutment configuration. MATERIALS AND METHODS Three combinations of implants with custom-made zirconi...

INTRODUCTION .......................................................................................................................................................161 MECHANISM OF ACTION OF -LACTAM ANTIBIOTICS .............................................................................161 RESISTANCE TO -LACTAM ANTIBIOTICS ..........................................................................

It is expected that the next generation of smart card will be more intelligent, more interactive and more interoperable. We call these the 3i requirements. A smart card wallet system for meeting these 3i requirements is presented. A novel objectoriented framework is proposed, such that everything is stored in the smart card wallet as an object and the extensible markup language (XML) is employe...

The role for Digital Elevation Models (DEMs) has been expanding rapidly in recent years. Applications are increasing and encompass industries as diverse as telecommunications, forestry, municipal engineering and precision agriculture to name only a few. The accuracy and detail required varies with application, and a number of technologies are able to provide DEMs appropriate to particular mappi...

abstract: objective(s): in recent years, the chemistry of 2-chloroquinoline-3-carbaldehydes have received considerable attention owing to their synthetic and effective biological importance which exhibits a wide variety of biological activity, n1,n4-bis((2-chloroquinolin-3-yl)methylene)benzene-1,4-diamine derivatives that synthesized from 2-chloroquinoline-3-carbaldehydes may have biological ef...

A hybrid simulation model with kinetic ions, massless fluid electrons, and phenomenological resistivity is used to study the perpendicular configuration of the bow shocks of the earth and other planets. We investigate a wide range of parameters, including the upstream Mach number, electron and ion beta (ratios of thermal to magnetic pressure), and resistivity. Electron beta and resistivity are ...

This paper studies representation stability in the sense of Church and Farb for representations of the symmetric group Sn on the cohomology of the configuration space of n ordered points in R. This cohomology is known to vanish outside of dimensions divisible by d− 1; it is shown here that the Sn-representation on the i(d− 1) cohomology stabilizes sharply at n = 3i (resp. n = 3i + 1) when d is ...