The use of nanoparticles (NPs) has become a significant area of research in Dentistry. Objective The aim of this study was to investigate the physical, antibacterial activity and bond strength properties of conventional base, core build and restorative of glass ionomer cement (GIC) compared to GIC supplemented with titanium dioxide (TiO2) nanopowder at 3% and 5% (w/w). Material and Methods Vick...

In traditional thermodynamics the Carnot cycle yields the ideal performance bound of heat engines and refrigerators. We propose and analyze a minimal model of a heat machine that can play a similar role in quantum regimes. The minimal model consists of a single two-level system with periodically modulated energy splitting that is permanently, weakly, coupled to two spectrally separated heat bat...

Two experimental groups of abutments were prepared: (1) 4.3-mm platform width implant abutment with a 6.5-mm height (control), and (2) a 4.3-mm platform width implant abutment with a 5.5-mm height (shorter). Each abutment had 5 zirconia copings (custom designed) fabricated through a 3-dimensional computer-assisted design (3-D CAD) process by scanning an identical wax pattern. The zirconia copin...

This approach has been developed in the context of the E U R O T R A machine translation (MT) project and thus has been d e s i g n e d w i t h r e spec t to a s y n t a x based s t r a t i f i c a t i o n a l translation process? We assume that in a semantic representation determiners are deleted and that their semantic funct ion which is represented by semantic features is percolated into the...

Background: To conserve the tooth structure, bonded restorations are popular nowadays. Bonding to enamel is predictable by acid-etch technique. However, bonding dentin remains a challenge. Aim: determine better agent between universal and total-etch agents based on shear bond strength using testing machine.
 Methodology: Eighteen human permanent mandibular molars were sectioned longitudina...

This approach has been developed in the context of the E U R O T R A machine translation (MT) project and thus has been d e s i g n e d w i t h r e spec t to a s y n t a x based s t r a t i f i c a t i o n a l translation process? We assume that in a semantic representation determiners are deleted and that their semantic funct ion which is represented by semantic features is percolated into the...

We present a small time-efficient universal Turing machine with 5 states and 6 symbols. This Turing machine simulates our new variant of tag system. It is the smallest known universal Turing machine that simulates Turing machine computations in polynomial time.

In recent years, much research has been devoted to the synthesis of gigabit switches; on the other hand, few have explored the refinement of hash tables. In fact, few cryptographers would disagree with the improvement of the lookaside buffer. In this work, we use signed technology to show that architecture and superblocks are usually incompatible.