The roles of the several parameters that influences railway track deterioration most, are examined in this research with a view to make railway track maintenance more effective and cost efficient. The results presented are based on a comprehensive study of railway track degradation on super structure, sub-structure and geometrical aspects. The changes in TQI (Track Quality Index), the track set...

The Road Management Systems (and the PMS) usually do not take into consideration the future traffic change. The maintenance and rehabilitation actions and the development of the road network structure and the changing traffic structure modify the amount of the traffic on the road section. The deterioration process depends on mostly the volume of the traffic. That is why it is important to take ...

Amongst the varied symptomology of multiple sclerosis is to be found the alteration of higher functions (cognitive deficit), which has considerable repercussions on the quality of life of patients. The old descriptions of the disease rarely differentiate cognitive affectation from the more general category of "mental symptoms", which also includes a broad range of affective disorders. Towards 1...

The main purpose of this paper is to give an overview of some recent progress made in modelling of deterioration of reinforced concrete structures. The review is not claimed to be complete. It is based on some of the author’s contributions in this research area especially the papers (Thoft-Christensen 2001) and (ThoftChristensen, Svensson and Frandsen 2005). In the paper, corrosion of reinforce...

New JGP study models how sinoatrial node pacemaker activity changes in aged hearts.

Mental retardation is detected in 20-30% of children with epilepsy at hospitals specializing in treatment of childhood epilepsy. However, the incidence of mental deterioration in childhood epilepsy is not high. In this study, mental deterioration was found in 52 (1.8%) of the 2,880 children with epilepsy at Okayama University Hospital. The patients showing mental deterioration mostly suffered f...

A 40 year-old woman was referred to a refractive surgery clinic complaining of blurred vision and photophobia. She had undergone myopic LASIK 8 years ago. There had been no problem one year after surgery with best corrected visual acuity (BCVA) of 20/20 at that time. Her complaints started gradually and progressed thereafter. She had no history of systemic disease including diabetes mellitus an...