Biomechanical factors contributing to marathon race success.

During marathon running, the body's metabolic resources become depleted and musculoskeletal stress and fatigue begin to hinder performance, making efficient running a must. Biomechanical studies of long distance running have tried to identify how body structure and running mechanics interact with performance, economy and injury, and typically have involved groups of subjects. While moderate relationships have been identified, the outcomes include conflicting results, vague conclusions and unclear consequences.

A prospective 5-year study of two cast framework alloys for fixed implant-supported mandibular prostheses.

Purpose: A longitudinal 5-year clinical investigation was carried out to compare screw-retained frameworks constructed from two alloys with different mechanical properties, either gold or silver-palladium, supported in the mandible by the Astra Tech implant system.

Materials And Methods: Twenty-six edentulous patients with mandibular implants were divided into two groups: group A was provided with Chicago IV gold alloy superstructures, and group B was provided with Palliag M silver-palladium alloy superstructures. The surgical procedures for placing the mandibular bone implants and the prosthodontic and laboratory techniques for constructing the prostheses were carried out according to standard, well-documented practices.

Destruction of Aflatoxin During the Production of Hydrolysed Vegetable Protein.

An investigation into the breakdown of aflatoxins during the hydrolysis of artificially contaminated vegetable protein was conducted using a laboratory scale reactor. The conditions were selected to emulate a commercial process used to produce a protein hydrolysate used in processed food and soup ingredients. Chromatographic analysis showed that aflatoxins at relatively high concentration are totally destroyed and removed from the product.