proper scheduling of tasks leads to optimum using of time and resources, inorder to obtaining best result. one of the most important and complicatedscheduling problems is open shop scheduling problem. there are n jobs in openshop scheduling problem which should be processed by m machines. purpose ofscheduling open shop problem is attaining to a suitable order of processing jobs byspecified mach...

conclusions fuji plus cement exhibited better sealing ability in closed and open margins compared to g-cem and fleck cements. when using g-cem and fleck cements for full metal ceramic restorations, clinicians should try to minimize marginal gaps in order to reduce restoration failure. in situations where there are doubts about perfect marginal adaptation, the use of fuji plus cement may be help...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 introduction: providing free access to the latest research and more publishing channels, open access (oa) is hoped to decrease the south countries' information poverty and professional isolation. due to its particular importance, it is necessary to investigate how they exploit open access resources. methods: applying a cit...

background : mechanical ventilation is used for some infants in neonatal intensive care units (nicu) due to many physiological and clinical causes. since these patients have endotracheal tubes, cleaning and keeping the airways open through suctioning should be done to increase oxygenation. this study aimed to evaluate effect of open and closed suctioning methods on respiratory parameters of inf...

Despite enormous strides recently, it remains difficult for researchers to find relevant resources that are not 'flat' html files and may be hidden within web services. This paper will draw upon recent experiences at the UK's largest academic data centre providing web services to the education community. Since May 2001 a project has been underway attempting to make the resources more visible by...