Effect of normal load on the wear and rolling contact fatigue behaviour of AAR class B wheel against R350HT rail in a twin disc simulator

The normal load at the wheel-rail contact interface plays a significant role in wear and rolling contact fatigue (RCF) performance of both wheel and rail steels.In recent years, there has been an increase in axle loads due to increased demand for railway services.This study investigated the effect of normal load on the wear and RCF behaviour of the

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The meningococcal vaccine candidate neisserial surface protein A (NspA) binds to factor H and enhances meningococcal resistance to complement.

Complement forms an important arm of innate immunity against invasive meningococcal infections.Binding of the alternative complement pathway inhibitor factor H (fH) to fH-binding protein (fHbp) is one mechanism meningococci employ to limit complement activation on the bacterial surface.fHbp is a leading vaccine candidate against group B Neisseria m

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The impact of Levamisole on Newcastle disease antibodies titer in broilers fed with diet contaminated with Aflatoxin

This study designed to know the immuno suppressor effect of aflatoxins and the efficacy of levamisole to reduce these effects in the titer of antibodies and protection against challenge for Newcastle disease vaccine in chickens.This trail include three groups, first group fed on ration free from aflatoxins contamination, Second group fed on ration

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