W. A. Smit

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In anamniote vertebrates the central region of the spinal cord has been implicated in its regeneration. This is a complex region and so as a first step in understanding its possible regenerative role we have examined the organization of the cells that contact the lumen of the spinal cord in two teleost fishes, eel and trout, using immunohistochemical(More)
As the target musculature they innervate grows throughout life, certain segmental motoneurons from the spinal cord of Anguilla, readily identified on the basis of their form and position, also increase in size. In doing so, they present a steadily increasing target to the spinal and supraspinal neurons that innervate them. How the afferent neurons respond(More)
Estimates of the numbers of spinal motoneurones in relation to growth in the eel, Anguilla, were made by counting the axons contained within the ventral roots. Motoneuronal size was determined as the surface area of cell somata labelled retrogradely from applications of tracer (horseradish peroxidase, cobalt lysine) to the musculature or spinal nerves. The(More)
We propose to compute a vector eld, similar to the optical ow computed between successive frames of an image sequence, which maps optimally (in a certain sense) one face image onto another face image. A cost of the mapping is computed and used to quantify the dissimilarity between the two images. The technique is applied to the problem of person(More)
  • Development L Dekker, W Smit, H Jonkers, A J C Van Gemund, G L Reijns
For the eeective d e v elopment of applications running on massively parallel systems, eecient but reliable performance predictions are required. However, existing performance evaluation formalisms are either not directly suitable for modelling parallel applications, or are too computationally expensive. To alleviate these problems, two n o vel(More)
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