In this research it was considered the particular case of a railway problem, specifically, the construction of orders delivery schedule for one locomotive plying among three railway stations. In this paper it was suggested a polynomial algorithm and were shown the results of a computing experiment.

The Japanese Orthopaedic Association has proposed the term locomotive syndrome to designate a condition of individuals in high-risk groups with musculoskeletal disease who are highly likely to require nursing care. This study investigates the influence of spinal factors on locomotive syndrome in Japanese men. A total of 105 men older than 50 years were enrolled in the study. Those answering yes...