Ultra-high-molecular weight polyethylene (UHMWPE) wear, debris-induced osteolysis is a frequent cause of failure of total hip arthroplasty. Metal-on-metal total hip arthroplasty eliminates the generation of UHMWPE particulate debris. Although the volumetric wear of a metal-on-metal articulation may be lower than a metal-UHMWPE articulation, the number of particles may be higher. Osteolysis can ...

Polyacetal resin is well known material in medical field for various applications such as for artificial heart valves and artificial hip joints. In dentistry the material among its other applications, is used for removable partial dentures. The article presents rehabilitation of a patient with maxillary defect using polyacetal resin obturator prostheses. The patient was rehabilitated 5 years ag...

In this paper, the ability of chrome shavings to remove motor oils, oily wastes and hydrocarbons from water has been studied. To determine amount of hydrocarbons sorbed on tanned wastes, a FT-NIR methodology was used and a multivariate calibration based on partial least squares (PLS) was employed for data treatment. The light density, porous tanned waste granules float on the surface of water a...

Previous studies have emphasized the necessity for software platform owners to govern their platform ecosystem in order to create durable opportunities for themselves and the app developers that surround the platform. To date, platform ecosystems have been widely analyzed from the perspective of platform owners, however, how and to what extent app developers collaborate with their peers needs t...

This is in part a position paper and in part a description of a Google Chrome privacy extension we built. We make the case that our first goal when tackling the issue of privacy and third party tracking of user’s browsing should be to increase transparency. We describe a browser extension we have built, that enables users to see which third party has observed what about them. We discuss the res...

Abstract Manufacture of eco-friendly chrome-free leather is great significance for realizing sustainable development industry. Conventional tanning theory believes that it impossible to convert raw hide without the utilization cross-linking agent (e.g., chrome salts) among collagen fibers in hide. Here, we developed a brand-new manufacture strategy relied on composite dehydration media enabled ...