Letter: The bran-wagon.

The wagon-wheel illusion in continuous light.

The fact that a perceptual experience akin to the familiar wagon-wheel illusion in movies and on TV can occur in the absence of stroboscopic presentation is intriguing because of its relevance to visuo-temporal parsing. The wagon-wheel effect in continuous light has also been the source of considerable misunderstanding and dispute, as is apparent in a series of recent papers. Here we review thi...

Predicting perception of the wagon wheel illusion.

Stroboscopic illumination of a rapidly rotating disk with radial spokes leads to a range of different stationary and moving images as the angular rotation frequency of the disk and the strobe frequency are varied. We compare predictions from the standard correlation model of motion perception with a model based on phase locking observed during periodic stimulation of an integrate-and-fire nonli...

Bran yesterday . . . bran tomorrow?

Dietary fibre rose to prominence in the late 1960s. For a decade it held the enthusiastic attention of many doctors, nutritionists, and the public at a time of increasing awareness of the part played by diet in health. Dietary fibre had been considered previously to be an inert component of plant foods; because it was not digestible by human intestinal enzymes it was thought to have no importan...

Letter to the editor

Locomotive and Wagon Scheduling in Freight Transport

We present a new model for a strategic locomotive scheduling problem arising at the Deutsche Bahn AG. The model is based on a multi-commodity min-cost flow formulation that is also used for public bus scheduling problems. However, several new aspects have to be additionally taken into account, such as cyclic departures of the trains, time windows on starting and arrival times, network-load depe...