We consider a generalization of the drinking philosophers problem, called GDrPP, in which processes may issue AND-OR requests for resources, as opposed to the AND requests of the original formulation. For GDrPP, we introduce a basic priority dynamics that can be regarded as generalizing the edge-reversal priority dynamics underlying the classical solution to the original formulation. The novel ...

In the m-Peripatetic Salesman Problem (m-PSP) the aim is to determine m edge disjoint Hamiltonian cycles of minimum total cost on a graph. This article describes exact branch-and-cut solution procedures for the undirected m-PSP. Computational results are reported on random and Euclidean graphs.

A survey questionnaire designed to determine mariner knowledge and awareness of endangered whales, existing conservation measures, and mariner receptivity to near real-time conservation technology on the bridge is herein reported. The survey, distributed by the Shipping Federation of Canada, yielded 43 responses. The majority of respondents were interested in receiving information on endangered...

Following a previous study that revealed the disobedience of Ultra-Orthodox citizens, as compared to secular citizens, of traffic lights at crosswalks, the present study examined the road habits of 995 Ultra-Orthodox and secular pedestrians in neighboring Ultra-Orthodox and secular cities. Using an observation grid designed specially for this study, the pedestrians were observed at two crosswal...