From ancient abacuses to modern computers, our desire for more power in computing and drive for its deep application seem endless. First we saw the emergence of scientific computing after ENIAC six decades ago, and then the tide of bioand medical informatics in 1980s. Today, the wave of virtual worlds and the real force inside the Web have pushed us beyond the physical space to a new direction ...

We use a third-order perturbation theory and Melnikov's method to prove the existence of chaos in spinning circular disks subject to a lateral point load. We show that the emergence of transverse homoclinic and heteroclinic points lead, respectively, to a random reversal in the traveling direction of circumferential waves and a random phase shift of magnitude pi for both forward and backward wa...

We report Bose-Einstein condensation of (84)Sr in an optical dipole trap. Efficient laser cooling on the narrow intercombination line and an ideal s-wave scattering length allow the creation of large condensates (N(0) approximately 3 x 10(5)) even though the natural abundance of this isotope is only 0.6%. Condensation is heralded by the emergence of a low-velocity component in time-of-flight im...

This article reports the early and late results of a patient in whom radiofrequency current was used to ablate an incessant inappropriate sinus tachycardia. During successful radiofrequency application there was a sudden change of rate and subsequent emergence of a stable rhythm with the same sinus node P wave characteristics. During follow-up, normal cardiac cycles were still present after six...

The emergence of technology mediated learning has translated the primitive mode of learning into an enhanced technological mode where learning is not restricted to a particular geographical location, space, time etc. There is more on a new wave of learning strategies and approaches to motivate online learners to engage in learning process tailored through learning paths that lead to successful ...

In this work, we investigate the emergence of rare and intense events during the Raman fiber amplification of a continuous wave. We highlight how dispersive properties and pump depletion can strongly influence the statistical properties of the amplified signal and its optical spectrum. Under certain conditions, the probability density functions of the amplified signal are calculated analyticall...

The emergence of technology mediated learning has translated the primitive mode of learning into an enhanced technological mode where learning is not restricted to a particular geographical location, space, time etc. There is more on a new wave of learning strategies and approaches to motivate online learners to engage in learning process tailored through learning paths that lead to successful ...

The spontaneous collapses of the wave functions of photons, within the framework of possible relativistic extensions of the theory of Ghirardi, Rimini, and Weber are discussed. It is shown that a recently published argument which claims that such collapses can account for the emergence of determinate outcomes of certain experiments involving fluorescent screens is inadequate, since it is based ...

The existence of a line solitary-wave solution to the water-wave problem with strong surface-tension effects was predicted on the basis of a model equation in the celebrated 1895 paper by D. J. Korteweg and G. de Vries and rigorously confirmed a century later by C. J. Amick and K. Kirchgässner in 1989. A model equation derived by B. B. Kadomtsev and V. I. Petviashvili in 1970 suggests that the ...