We have examined the patterns of termination of single, physiologically identified optic tract fibers in the dorsal lateral geniculate nucleus (LGNd) of the cat. The axons were impaled with a recording micropipette and characterized by their responses to light and by their conduction latencies to electrical stimulation of the optic nerve. Horseradish peroxidase was then iontophoretically inject...

Two-dimensional spatially selective excitation is used to excite a volume such as pencil beam or cylinder-like shape (1). It can also be used to obtain reduced FOV in slice selective excitation, which corresponds to a rectangular stick in the object domain (2). This study is to explore how to design RF and gradient pulses in order to excite a desired volume given gradient limitations, and to se...

3D hand tracking is an interesting problem with high complexity due to the high dimensionality of the human hand and its frequent and often severe self occlusions. Most of the curent methods, track a human hand under the assumption that its parameters (e.g., finger lengths, palm dimensions, e.t.c.) are already known. This assumption limits the applicability of tracking methods. Recently, a few ...

A key problem in shape-from-shading is how to simultaneously satisfy data-closeness and regularisation (such as surface smoothness) constraints. This paper makes two contributions towards solving this problem. The first is to describe a smoothness constraint which preserves surface structure by adaptively smoothing according to the intensity gradient magnitude. The second is to derive a framewo...

Correction for 'Particle shape optimization by changing from an isotropic to an anisotropic nanostructure: preparation of highly active and stable supported Pt catalysts in microemulsions' by Riny Y. Parapat et al., Nanoscale, 2013, 5, 796-805.

In this paper, we brie y report the experimental procedure and some results in testing our hypothesis that di erences in size and shape of the vocal tract in uence the dynamics of the formant trajectories of the speech signals.

A new templating motif for the formation of [2]pseudorotaxanes is described in which rigid, Y-shaped axles with an imidazolium core and aromatic substituents at the 2-, 4- and 5-positions interact with [24]crown-8 ether wheels ([24]crown-8 and dibenzo[24]crown-8). The Y-shape of the axle significantly enhances the association between axle and wheel when compared to simple imidazolium cations.

An adaptation of the fast marching method to the perspective Shape from Shading under frontal illumination is proposed. A heuristic is proposed to handle occlusion. The method outperforms Tankus et al. [Tankus, A., Sochen, N., Yeshurun, Y., 2005. Shape-from-shading under perspective projection. Internat. J. Comput. Vision 63(1), 21–43] in both time and accuracy. Accurate methods for generating ...

The rigidity, conjugation, and shape-persistent architectures of aryl ethynyls of V, Y, and X shapes serve as an ideal model system for defining interparticle structures, which have been demonstrated for the mediated assembly of gold nanoparticles.

When applying nonparametric regression methods, the researcher is interested in estimating the relationship between one dependent variable, Y , and one or several covariates, X1, . . . , Xq. We discuss here the situation with one covariate, X (the case with multiple covariates is addressed in the references provided below). The relationship between X and Y can be expressed as the conditional ex...