Vertebrate segmentation relies on a molecular oscillator, the segmentation clock, which controls the periodic expression of genes such as lunatic fringe in the presomitic mesoderm. Oscillations of lunatic fringe transcripts have now been shown to be controlled at the transcriptional level by clock elements in the lunatic fringe promoter.

We present two robust algorithms for fringe pattern analysis with partial-field and closed fringes. The algorithm for partial-field fringe patterns is presented as a refinement method for precomputed coarse phases. Such an algorithm consists of the minimization of a regularized cost function that incorporates an outlier rejection strategy, which causes the algorithm to become robust. On the bas...

A theoretical investigation is made of the effects of dispersion in neutral gases on the formation of white-light fringes in an ideal Mach-Zehnder interferometer. It is found that the shift of the brightest fringe is determined by the change of the group refractive index at an effective mean wavelength of the white light. However, the white-light fringe technique may be used to measure changes ...

When reconstructing the three-dimensional (3D) object height profile using the fringe projection profilometry (FPP) technique, the light intensity reflected from the object surface can yield abruptly changing bias in the captured fringe image, which leads to severe reconstruction error. The traditional approach tries to remove the bias by suppressing the zero spectrum of the fringe image. It is...

A firm whose profits increase when outsiders believe that it pays high wages may induce its workers to over-consume goods that signal high compensation. One implication is that firms may lobby government to subsidize fringe benefits with high signaling value, such as company cars, to their employees. We show that under plausible conditions the provision of fringe benefits indeed can signal the ...