The aim of this study is to assess the quantitative ions changes in enamel occlusal surfaces affected by white-spot and brown-spot dental caries. Energy dispersive X-rays analysis (EDX) has been used for qualitative and quantitative chemical analysis of 30 enamel samples (10 sound enamel samples, 10 white-spot enamel samples, 10 brown-spot enamel samples). For samples with white-spot and brown-...

statement of the problem : enamel white spot lesions are one of the problems associated with fixed orthodontic treatment that compromise esthetics. porpuse the aim of this study was to evaluate the effect of fluoride varnish on the improvement of white spot lesions after fixed orthodontic treatment. materials and methods in this randomized clinical trial, 20 patients with at least two white spo...

Vision-based intelligent vehicle applications often require large amounts of memory to handle video streaming and image processing, which in turn increases complexity of hardware and software. This paper presents an FPGA implement of a vision-based blind spot warning system. Using video frames, the information of the blind spot area turns into one-dimensional information. Analysis of the estima...

Resumen. Frameworks are software systems implementing the shared structure and functionality for a family of applications. We propose that the extension points, also known as hot spots, of a framework to be expressed as a set of aspects, creating thus an aspect-oriented wrapper for an object-oriented framework. The benefits of this approach include improved modularity, implying better configura...

background: one of the methods used for joining metals together is welding, which can be carried out using different techniques such as electric spot welding. this study evaluated the effect of electric spot welding on the load defl ection rate of stainless steel and chromium-cobalt orthodontic wires. materials and methods: in this experimental-laboratory study, load defl ection rate of 0.016 ×...

This hot spot paper presents a software system for enabling pervasive data gathering in electronic workflows, and explains also its wider utility for linking electronic workflows with common web pages.

Amazon’s Elastic Compute Cloud (EC2) leverages an auction approach, called “spot pricing”, to sell cloud resources to users. Spot prices are constantly adjusted by the cloud provider in response to demands, and users’ bids that exceed the spot price are accepted. When a user’s bid falls below the prevailing spot price, the user’s instance is terminated until such a time his bid exceeds the spot...