Background. Wear resistance of pit and fissure sealant materials can influence their retention. Wear characteristics of sealant materials may determine scheduling of check-up visits. The aim of this study was to compare wear resistance of two flowable composite resins with that of posterior composite resin materials. Methods. Thirty-five disk-shaped specimens were prepared in 5 groups, includin...

We reapply our approach to designing nanophotonic quantum memories to formulate an optical network that autonomously protects a single logical qubit against arbitrary single-qubit errors. Emulating the 9 qubit Bacon-Shor subsystem code, the network replaces the traditionally discrete syndrome measurement and correction steps by continuous, time-independent optical interactions and coherent feed...

statement of problem: surface disinfection is an important aspect of infection control in dentistry. a new generation of quaternary ammonium components (qacs) is gaining popularity as high-level disinfectants. two types of qac sprays, uniseptaquick and solarsept, are being widely used by iranian dentists. purpose: the aim of this study was to evaluate the clinical efficiency of unisepta quick a...

In this paper a fair and fast buffer sharing scheme based on the round robin cell distribution mechanism for an input buffer ATM switch is proposed. This buffer sharing scheme improves the performance of the input buffer ATM switch in terms of the cell loss ratio and the CDV by equalizing the occupancy of input buffers. In order to make the equalizing and buffer sharing operation fast and simpl...

Executable models play a key role in many development methods by facilitating the immediate simulation/implementation of the software system under development. This is possible because executable models include a fine-grained specification of the system behaviour. Unfortunately, a quick and easy way to check the correctness of behavioural specifications is still missing, which compromises their...