statement of the problem: endodontic irrigants and medicaments may affect the bond strength of intracanal posts to root dentin. purpose: the aim of this study was to compare the effect of calcium hydroxide (ca(oh) 2 ) and 2% chlorhexidine gel (chx) on bond strength of fiber post cemented with resin cement to root dentin. materials and method: this in vitro experimental study was conducted on 36...

high and increasing beef marketing margin leads one to controversy about factors affecting it. this study using the monthly data for the 1998-2005 period to investigate the market power and to estimate how farm and marketing services supplies and retail demand determinants can affect beef marketing margin. the results show that farm, marketing services and retail level prices and thereby ma...

Metal ceramic restorations have been implicated for the discoloration in area of labiogingivalmargin. Attempts to rectify this, by altering the design of metal frameworkswill lead to decrease in fracture strength atmargin. This in vitro study compared the fracture strength at margins of metal ceramic crowns cemented to metal tooth analogs. Crowns evaluated with different marginal configurations...

PURPOSE There is no common theory on criteria to appropriately select crew rowers in pursuit of small performance gains. The purpose of this study was to establish whether anthropometry, rowing ergometry, or lower body strength were suitable criteria to identify differences between selected and nonselected sculling crews. METHOD Twelve elite women performed a 2000-m ergometer time trial and a...

OBJECTIVES In medical institutions, unauthorized access points and terminals obstruct the stable operation of a large-scale wireless local area network (LAN) system. By establishing a real-time monitoring method to detect such unauthorized wireless devices, we can improve the efficiency of security management. METHODS We detected unauthorized wireless devices by using a centralized wireless L...

We use laboratory experiments to analyze how the existence of trading frictions (a transaction fee and a ban on short selling margin buying) affects occurrence strength post-earnings-announcement drift. find lower activity higher asset prices in presence frictions. While initial price reaction earnings announcements is weaker, PEAD not materially affected. Trading strategies aimed at exploiting...