background and aim: attention is an important cognitive process that is necessary for educational purposes. blind people are deprived from the most widely used human sense, the sense of vision. there are reports that blind individuals have a significantly better performance in attentional tasks, as compared with normal subjects. the purpose of this study was to evaluate sustained auditory atten...

a watermarking scheme for grayscale image isproposed based on a family of the chaotic maps and discretecosine transform. jacobian elliptic mapis employed to encrypt ofwatermarked logo. piecewise nonlinear chaotic map is also usedto determine the location of dct coefficients for the watermarkembedding. the purpose of this algorithm is to improve theshortcoming of watermarking such as small key s...

Blind Source Separation (BSS) is often carried out under the assumption that sources are statistically mutually independent, at least in the sense of cumulants of given order. However, this assumption is not mandatory, and can be replaced by some assumption on the source distribution, even if all sources are identically distributed. Contrast functions are optimization criteria that satisfy some...

Situational awareness in the face of hybrid campaigns is undermined by ‘blind spots’, which this article conceptualises. Blind spots are where legal or political frameworks preclude intelligence gathering below threshold war. Drawing on a historical case study alterations legislation and security police directives Norway from 1950–2021, analysis shows how an influence operation’s blind spot var...

Restoring Vision to the Blind: Project Background and Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . i Restoring Vision to the Blind: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Chapter 1 Restoring Vision to the Blind: The New Age of Implanted Visual Prostheses . . . . . . . . . . . . . . . . 3 Chapter 2 Restor...