PURPOSE Laparoscopic gastrectomy has been adopted for the treatment of gastric cancer, and despite the technical difficulties, totally laparoscopic distal gastrectomy has been considered less invasive than laparoscopy-assisted distal gastrectomy. Although there have been many reports regarding the feasibility and safety of totally laparoscopic distal gastrectomy at large volume centers, few rep...

The article deals with the decision problems of estimating energy expenditure low-emission fleets in urban service companies due to environmental safety. One most important today’s transport policy many city authorities is ecological safety its inhabitants. basic measures are aimed at banning high-emission vehicles from centers and promoting introduction zero-emission vehicles, such as electric...

We consider a controlled queueing system of the G/M/n/B +M type, with many servers and impatient customers. The queue-capacity B is the control process. Customers who arrive to a full queue are blocked and customers who wait too long in the queue abandon. We study the tradeoff between blocking and abandonment, with cost accumulated over a random, finite time-horizon, which yields a queueing con...

Deet is considered to be the best "all around" insect repellent ever developed and is the most widely used insect repellent in the world. Since its first use in a consumer product in 1956, billions of applications have been made to human skin. Information about the safety of deet comes from the human clinical literature, animal toxicology studies, and poison control centers' experiences with de...

BACKGROUND Healthcare professionals encounter many medical risks while providing healthcare services to individuals and the community. Thus, occupational safety studies are very important in health care organizations. They involve studies performed to establish legal, technical, and medical measures that must be taken to prevent employees from sustaining physical or mental damage because of wor...

background: various studies have reported the prevalence of low back pain in specific populations very differently. the aim of the present study was to determine the prevalence of low back pain and related factors among the referees to health centers in dehloran, iran.   materials and methods: in this cross sectional study, two hundred and seventy three referees to health centers in dehloran wh...

OBJECTIVE To determine the level of child safety seat (CSS) and airbag safety knowledge in parents who utilize emergency care services for their children and to determine factors that influence knowledge of safe transportation of children. METHODS A prospective survey study was conducted in a 42 000-visit-per-year Level I trauma center and emergency department (ED) in Southern California from...