This study was undertaken on 14 teeth in order to evaluate a new technique for radiation dose reduction during endodontic therapy. After examination of the preoperative film, usually available in the patient file, an apex locator (Root ZX) was used to measure the working length. Complete chemomechanical debridement was then performed, and the master cone was evaluated by a digital imaging syste...

The stabilizer ZX-calculus is a rigorous graphical language for reasoning about quantum mechanics. The language is sound and complete: one can transform a stabilizer ZX-diagram into another one if and only if these two diagrams represent the same quantum evolution or quantum state. We show that the stabilizer ZX-calculus can be simplified, removing unnecessary equations while keeping only the e...

INTRODUCTION Raypex 6 is an electronic apex locator (EAL) that has not yet been tested in vivo. The purpose of this in vivo study was to compare the accuracy of two EALs: the Dentaport ZX and the Raypex 6. METHODS The study involved 36 straight single-rooted teeth. A 10-K file was advanced until the EAL detected the major foramen. The file was fixed in a replaceable pattern of light-cured com...

Numerous apex locator studies have been performed. Generally, they use only stainless-steel hand files for testing purposes. Today many clinicians use both stainless-steel and nickel-titanium files during the treatment of a case. Given the widespread use of nickel-titanium files, a comparison of the accuracy in determining length with an apex locator using stainless-steel and nickel-titanium fi...

Abstract We introduce an enhanced technique for strong classical simulation of quantum circuits which combines the ‘sum-of-stabilisers’ method with automated simplification strategy based on ZX-calculus. Recently it was shown that can be classically simulated by expressing non-stabiliser gates in a circuit as magic state injections and decomposing them chunks 2–6 states at time, obtaining sums ...

Translations between the quantum circuit model and measurement-based one-way are useful for verification optimisation of computations. They make crucial use a property known as gflow. While gflow is defined computations allowing measurements in three different planes Bloch sphere, most research so far has focused on containing only XY-plane. Here, we give first circuit-extraction algorithm to w...

Only one rodent specimen has been previously described from the late Hemphillian ZX Bar local fauna from Sioux County, Nebraska-the holotype of the heteromyid Perognathus coquorum Wood. A re-examination ofthis specimen has led to its allocation to the dipodomyine heteromyid genus Prodipodomys Hibbard. An additional specimen of a fossil rodent has been recognized from the ZX Bar fauna that is re...

This article reports and discusses the results of impulse breakdown study different insulating liquids under highly divergent electric field conditions. Samples a natural ester (Envirotemp FR3), synthetic (MIDEL 7131), naphthenic mineral oil (Shell Diala S4 ZX) at levels relative humidity were exposed to HV impulses with nominal 7- $\mu \text{s}$ rise time 150-kV peak voltage both positive nega...

Concentrations of Pb, Cd, Cu, Zn, Cr and Ni in soybean (Glycine max L.) grown near the Dabaoshan Mine were investigated, and their potential risk to the health of inhabitants was estimated. In the Fandong (FD) and Zhongxin (ZX) villages, which are near the Dabaoshan mineral deposit, concentrations of Pb (0.34 mg kg−1 for FD), Cd (0.23 mg kg−1 for ZX) and Cr (1.14 and 1.75 mg kg−1 for FD and ZX,...