Suppose G=(V,A) be an undirected graph with n nodes and a source vertex s Є V. Each node has a problem that must be solved by the repairman that has send. We are given the time required by the repairman to travel among nodes. The objective is to find a tour that minimizes the total waiting time of all the problems that are waiting to be solved. Traveling Repairman problem (TRP) is also known as...

BACKGROUND Methylchloroisothiazolinone (MCI)/methylisothiazolinone (MI) and MI are common preservatives in industrial and household products and in cosmetics. Occupational contact allergy to MCI/MI or MI has been reported among painters and paint factory workers in particular. OBJECTIVES To retrospectively describe patients with occupational contact allergy to MCI/MI and MI at the Finnish Ins...

The review analyzes a range and prevalence of health disorders in workers employed at mining enterprises the Arctic exposed to heterogeneous occupational factors. We revealed that working processes typical for basic occupations under-ground involved exposure set harmful (or) hazardous factors such as intense noise; elevated vibration; aerosols with predominantly fibrogenic effects, dusts chemic...

intelligence, spirituality and, consequently, spiritual intelligence (sq) have different definitions. intelligence means the abilities of the individual, which, based on the value system, is used for problem solving and adaptation to the environment. spirituality follows transcendental rules, to improve the infra-ego to the level of ego and improving the ego to the level of ultra-ego, as well a...

introduction there are one million deaths from asphyxia in newborn annually. management of this newborn is only supportive. autologuse stem cell therapy may reduce mortality and long term morbidity. outcome of asphyxiated newborn is related to damage cns cells. stem cells prevent apoptosis and induce repairmen of injured neurons. methods in a review study all article related to three keywords o...

A snow-capped mountain range stretches over the town's northern border and tapers down to a southward-facing, concave bay embracing a small archipelago of glittering islands. Homes are clustered in predictable locations: on the islands, against the seaside, and close to the mountains. This is the community of Blazing Falls, a town with over 25,000 inhabitants-roughly the size of Timbuktu or Pou...

introduction: there are different methods to repair retinal detachment. in this trial the retinopexy in repairmen of retinal regmatogenesis rd is compared with other methods in qazvin teaching hospitals during 1993-2003. methods: this out come study was conducted on 47 patients with s/b and retinal break cryopexy (group i) , 30 patients undergoing s/b with barrier laser photocoagulation around ...

BACKGROUND In addition to livestock movements, other between-farm contacts such as visitors may contribute to the spread of contagious animal diseases. Knowledge about such contacts is essential for contingency planning. Preventive measures, risk-based surveillance and contact tracing may be facilitated if the frequency and type of between-farm contacts can be assessed for different types of fa...