This study addresses the pickup and delivery problem for cross-docking strategy, in which shipments are allowed to be transferred from suppliers to retailers directly as well as through cross-docks. Usual models that investigate vehicle routing in cross-docking networks force all vehicles to stop at the cross-dock even if a shipment is about to a full truckload or the vehicle collects and deliv...

the aim of this research was to investigate the location and accessibility of urmia sport centers concerning national and international standards. the research was applicable, analytical and descriptive. statistical population consisted of all sport centers of urmia physical education department. statistical sample equaled the statistical population (29 sport centers). data were collected by a ...

Location is an important factor in the activity of economic enterprises. Owing to the importance, location-based sciencesought/seeks to provide the methods in order to determine and select the optimal location in the activities of enterprises. Enterprises seek to use scientific methods to maximize the services and efficiency and minimize the costs. Suitable location plays an important role in m...

A conformational analysis of the cembrene diterpenoids cembrene, cembrene A, (3Z)-cembrene A, isocembrene, casbene, and incensole, has been carried out using density functional theory at the B3LYP/6-31G* level of theory. A molecular docking analysis of these cembrenoids with tubulin has also been performed in order to assess the potential of tubulin binding of these cytotoxic agents. The macroc...

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...