AIM To assess the survival rate of root filled cracked teeth over a 2-year period in a tertiary institute. METHODOLOGY Forty-nine patients who had root canal treatment completed on their cracked teeth at the National Dental Centre (Singapore) were recalled for a 2-year review. Collected review data included presence of periodontal pocketing, sinus tract and swelling associated with the teeth....

WHILE all countries account for investment in tangible assets in their gross domestic product (GDP) statistics, no country currently includes a com­ prehensive estimate of business investment in intan­ gible assets in their official accounts. Most economists agree, however, that intangible assets—which repre­ sent an important input into the innovative process—are critical components of the mod...

In January 1996, the National Health Service Executive for England and Wales (NHSE) issued an Executive Letter, EL(95)1201, which asked both purchasers and providers to work towards best practice in commissioning, contracting and service delivery for epilepsy. This occurred against a backdrop of recognition that there was a significant shortfall in the quality of epilepsy services nationally. T...

Sn-BEA zeolite is known to catalyze the aldose-to-ketose isomerization of xylose and glucose; however, the selectivity to pentose and hexose isomers is not stoichiometric, suggesting the formation of other products. In the present study, we have observed near-complete conversion of all pentose and hexose isomers when xylose and glucose were reacted in the presence of Sn-BEA at 140 8C and 200 8C...

Theoretically secure cryptosystems, digital signatures may not be after being implemented on Internet of Things (IoT) devices and PCs because side-channel attacks (SCA). Because RSA key generation ECDSA require GCD computations or modular inversions, which are often computed using the binary Euclidean algorithm (BEA) extended (BEEA), SCA weaknesses BEA BEEA become a serious concern. Constant-ti...

in this paper, the crack detection and depth ratio estimation method are presented in beamlikestructures using elman networks. for this purpose, by using the frequencies of modes asinput, crack depth ratio of each element was detected as output. performance of the proposedmethod was evaluated by using three numerical scenarios of crack for fixed-simply supportedbeam consisting of a single crack...

Abstract A simple method is proposed to model the open cracked beam structures. In this method, crack is modeled as a beam element. Hence cracked beam can be assumed to be a beam with stepped cross sections, and problem of determining natural frequency and mode shape of cracked beam, can be solved as determining these characteristics for a beam with different length and cross section. With this...

In order to check and eliminate the cracked eggs quickly and exactly in the process of egg products, a nondestructive testing system for eggshells based on digital signal processor (DSP) was established. The system utilized a TMS320VC33 DSP as a hardware platform, and has many functions such as controlling knock-equipment, sampling and processing the acoustics signals, judging the cracked-shell...