In arthropods, periodic molting plays an important role in the growth, reproduction and morphogenesis. Periodic ecdysis is affected by a variety of environmental own factors, most which controlled concentration steroid hormones, ecdysone (Ecd) whose mainly active form 20-hydroxyecdysone(20E) hormone. Moreover, ecdysteroids play roles regulating development reproduction, CYP302al key enzyme bios...

Believing that figural zoom invariance and the cross-figural boundary linking implied by medial loci are important aspects of object shape, we present the mathematics of and algorithms for the extraction of medial loci directly from image intensities. The medial loci called cores are defined as generalized maxima in scale space of a form of medial information that is invariant to translation, r...

Almost anyone who develops an interest in fonts is bound to be overwelmed by the bewildering variety of letterforms available. The number of fonts available from commercial suppliers like Adobe, URW, LinoType and others runs into the thousands. A recent catalog issued by FontShop [Truong et al., 1998] alone lists over 25.000 different varieties.1 And somehow, although the differences of the ind...