The road coloring problem is an interesing problem proposed over 40 years ago by Adler, Goodwyn and Weiss. Hundreds of mathematicians worked on this problem and failed to make the conjecture a theorem. Finally, in 2007, it was proved by a 60-year-old Israeli mathematician, Avraham Trahtman. It turns out the prove was quite simple after Trahtman partitioned the graph into cycles and trees. The d...

An essential government function is to provide for the safe, efficient and environmentally friendly movement of people and goods. The past 20 years have seen tremendous growth and important changes in the use of road transport to such a degree urban congestion is adding significantly to the costs of road transport and hence to end consumers. Intelligent Transport Systems (ITS) offer promising s...

Road transport safety has always been paid attention to by the production managers of enterprises. In this study, cloud model and analytic hierarchy process were applied long-tube trailer transport. The opinions 30 experts analyzed, from which 29 key parameters selected. study addressed relevance possibility automatic collection transmission obtain 12 core risk factors. macro-safety indicator s...

 Abstract: The shipments of hazardous materials (HAZMATs) induce various risks to the road network. Today, one of the major considerations of transportation system managers is HAZMATs shipments, due to the increasing demand of these goods (because it is more used in industry, agriculture, medicine, etc.), and the rising number of incidents that are associated to hazardous materials. This paper ...

To cite: Singer SJ, Tucker AL. BMJ Qual Saf 2014;23: 789–800. THE ROAD TO WALKING AROUND The evidence is clear: a strong culture of safety is necessary to deliver reliably safe care. Safety culture encompasses a group’s shared values, assumptions, attitudes and patterns of behaviour regarding safety. 3 In healthcare organisations with weak safety culture, employees perceive the low priority ass...

the carrying capacity is well identified tool to manage problems due to uncontrolled tourism for any destination. this report highlights the carrying capacity estimation of kerwa tourism area, bhopal, india. the methodology used in this report is a new two-tier mechanism of impact analysis using index numbers derived from a survey of 123 stakeholders. from this the individual component impact a...

Tree-dwelling mammals are potentially highly vulnerable to discontinuities in habitat created by roads. We used population modeling to assess the viability of a metapopulation of Australia’s largest gliding marsupial, the greater glider (Petauroides volans), occurring in forest remnants in the fastesturbanizing region of Australia, where habitat is dissected by major roads. Crossing structures ...