In Beijing, some crop field is similar to urbanized area in spectral space of ETM+ image, and this is an obstacle to extract urbanized area of Beijing from ETM+ image. Furthermore, classical texture such as variance can not improve the seperability of such two landcovers. This article proposed a skewness based framework to extract the profile of urbanized area, while skewness was seldom applied...

CONTEXT Medical schools in the UK set their own graduating examinations and pass marks. In a previous study we examined the equivalence of passing standards using the Angoff standard-setting method. To address the limitation this imposed on that work, we undertook further research using a standard-setting method specifically designed for objective structured clinical examinations (OSCEs). MET...

This paper presents a new electronically tunable universal filter and quadrature oscillator for low frequency biomedical biosensor applications employing low-voltage differential difference transconductance amplifier (DDTA). The DDTA CMOS structure uses 0.5 V of supply voltage consumes 277 nW power. Unlike the previous filters, proposed provides many transfer functions standard five such as low...

This study used a virtual, simulated 3 vs. 3 rugby task to investigate whether gaps opening in particular running channels promote different actions by the ball carrier player and whether an effect of rugby expertise is verified. We manipulated emergent gaps in three different locations: Gap 1 in the participant's own running channel, Gap 2 in the first receiver's running channel, and Gap 3 in ...