All three main articles in the issues of the Kennedy Institute of Ethics Journal endorse the view that genetic enhancement should be permitted, including human germ-line genetic enhancement. However, unregulated, wealth-based access to genetic enhancement in general, and germ-line enhancement in particular, would create intolerable risks for society. Although there are a number of practical pro...

We report the possible detection of a Li i λ6708 Å line enhancement during an unusual long-duration optical flare in the recently discovered, X-ray/EUV selected, chromospherically active binary 2RE J0743+224. The Li i equivalent width (EW) variations follow the temporal evolution of the flare and large changes are observed in the intensity of the line. The maximum Li i enhancement (40% in EW) o...

We report the possible detection of a Li i λ6708 Å line enhancement during an unusual long-duration optical flare in the recently discovered, X-ray/EUV selected, chromospherically active binary 2RE J0743+224. The Li i equivalent width (EW) variations follow the temporal evolution of the flare and large changes are observed in the intensity of the line. The maximum Li i enhancement (40% in EW) o...

Improving the line-spectrum detection capability of a single hydrophone is great significance for passive small underwater platforms. In this paper, we propose single-hydrophone cross-power spectrum (SHCS) method based on time-domain coherence. This uses coherence line and non-coherence continuous noise to obtain coherent gain improve signal-to-noise ratio (SNR) spectrum. The effects input SNR,...

Performance of the linear models, widely used within the framework of adaptive line enhancement (ALE), deteriorates dramatically in the presence of non-Gaussian noises. On the other hand, adaptive implementation of nonlinear models, e.g. the Volterra filters, suffers from the severe problems of large number of parameters and slow convergence. Nonetheless, kernel methods are emerging solutions t...