A stimulus that suddenly appears in the corner of the eye inevitably captures our attention, and this in turn leads to faster detection of a second stimulus presented at the same position shortly thereafter. After about 250 msec, however, this effect reverses and the second stimulus is detected faster when it appears far away from the first. Here, we report a potential physiological correlate o...

Poverty is a significant social problem, affecting how individuals live and the resources available to them. For children, poverty represents a chronically suboptimal developmental environment as much as it reflects a state of economic stress. Neuroimaging techniques permit the non-invasive investigation of human brain development in adverse conditions such as poverty. Brain imaging has contrib...

In order to bridge the digital gap and to facilitate the use of ICT in teaching and learning among lecturers and students in Nigeria universities, the Nigeria Communication Commission (NCC) organized a workshop to train lecturers in the use of ICT skill and knowledge. It was expected that 12,000 lecturers from various universities will be trained. It was discovered that the idea was welcomed si...

[1] Auroral boundary algorithms for SuperDARN ionospheric convection observations are introduced. Both the equatorward boundary of scatter (EBS) and the convection reversal boundary (CRB) are found and compared with boundaries based on DMSP particle precipitation observations. These comparisons provide an intercalibration between the two schemes and insight into the relationship between dispara...

The Cray T3D and T3E are non-cache-coherent (NCC) computers with a NUMA structure. They have been shown to exhibit very stable and scalable performance for a variety of application programs. Considerable evidence suggests that they are more stable and scalable than many other shared memory multiprocessors. However, the principal drawback of these machines is a lack of programmability, caused by...

A rigorous approach to the study of the mind–body problem is suggested. Since humans are able to talk about consciousness (produce phenomenal judgments), it is argued that the study of neural mechanisms of phenomenal judgments can solve the hard problem of consciousness. Particular methods are suggested for: (1) verification and falsification of materialism; (2) verification and falsification o...

Normalized cross correlation (NCC), Sum of squared differences (SSD), and Sum of absolute differences (SAD) are the linear correlation measures generally used for stereo correspondence. These measures fail to establish the correspondence under nonideal conditions such as specular reflection, occlusion etc. In this paper, the similarity measures for stereo correspondence based on rank correlatio...

Most existing Multi-View Stereo (MVS) algorithms employ the image matching method using Normalized Cross-Correlation (NCC) to estimate the depth of an object. The accuracy of the estimated depth depends on the step size of the depth in NCC-based window matching. The step size of the depth must be small for accurate 3D reconstruction, while the small step significantly increases computational co...

Most experiments on the "neural correlates of consciousness" employ stimulus reportability as an operational definition of what is consciously perceived. The interpretation of such experiments therefore depends critically on understanding the neural basis of stimulus reportability. Using a high volume of fMRI data, we investigated the neural correlates of stimulus reportability using a partial ...

This paper presents the performance evaluation of eight focus measure operators namely Image CURV (Curvature), GRAE (Gradient Energy), HISE (Histogram Entropy), LAPM (Modified Laplacian), LAPV (Variance of Laplacian), LAPD (Diagonal Laplacian), LAP3 (Laplacian in 3D Window) and WAVS (Sum of Wavelet Coefficients). Statistical matrics such as MSE (Mean Squared Error), PNSR (Peak Signal to Noise R...