OBJECTIVES This study investigated how ambient light affects the diagnostic accuracy of dental carious lesions on monitors used in dental practice. Specifically, the aim was to evaluate whether a monitor hood for blocking excess ambient light increases practitioners' ability to accurately diagnose carious lesions on digital radiographs under bright ambient light conditions. METHODS 7 observer...

Large-scale, high-quality data sets are central to the development of advanced machine learning techniques that increase effectiveness existing optimization methods or even inspire novel ones. Especially in engineering domain, such rare due confidentiality concerns and generation costs, be it computational manual efforts. We, therefore, introduce OSU-Honda Automobile Hood Dataset (CarHoods10k),...

In order to increase containment efficiency and reduce energy consumption, an inclined quad-vortex range hood (IQV range hood) was developed and tested by experimental methods. The flow structure was observed by a laser-assisted flow visualization technique and laser Doppler velocimetry (LDV). Leakage characteristics were measured by the tracer gas (sulfur hexafluoride) detection method. By arr...

In order to recognize the problems associated with the transport mechanism of containment during the ventilation process of a laboratory fume hood, a transparent, full scale chemical fume hood is constructed for experimental studies. Distributions of mean velocity and velocity fluctuation in the sash plane are measured using a thermal anemometer. Flow patterns and tracer-gas concentration leaka...

Street gangs pose serious threats to their members, to their victims, and to communities at large. The behavior problems associated with gangs are many and varied. Suggested causes for the emergence of gangs are complicated, and many of them are interdependent. Interventions planned to rehabilitate individuals and to weaken the power of the gang are numerous. Research shows that few of these in...

omites, the precursors of vertebrae, striated muscle, and dermis, are laid down in a timed sequence from anterior to posterior. Now, Alexander Aulehla, Bernhard Herrmann (Max-PlanckInstitut für Immunbiologie, Freiburg, Germany), and colleagues report that a gradient and two dueling molecular clocks, all driven directly or indirectly by Wnt3a, combine to create the striped pattern of somites. Th...