We have introduced hydrogen diffusion in our evolution code in such a way that the chemical composition is computed taking simultaneously into account diffusion and nuclear reactions. The first model was obtained with the diffusion coefficients given by Thoul et al.(1995). Its frequencies show that the model should be improved. Five other models been have obtained with modifications of the diff...

Seismic data is often irregularly and/or sparsely sampled along spatial coordinates. We show that these acquisition geometries are not necessarily a source of adversity in order to accurately reconstruct adequately-sampled data. We use two examples to illustrate that it may actually be better than equivalent regularly subsampled data. This comment was already made in earlier works by other auth...

The name Ernest Henley to me is inexorably linked with the idea of symmetry tests. Indeed I learned my first information about parity violation in nuclei from his classic work on time reversal and parity[1] and it was reading this paper which eventually led to my interest in and work in this field. Of course, it is not just Prof. Henley who has long been interested in the subject of invariance....

In the various synthetic media proposed for growing Mycobacterium tuberculosis for tuberculin production, the emphasis has been on finding one which "would yield the greatest amount of growth per unit volume of culture medium in the shortest possible time" (Henley, 1929), on the tacit assumption that the amount of tuberculin produced parallels more or less directly such growth. Thus, Henley and...

[1] We report on seismic and petrological data that provide new constraints on the geological evolution of the Amerasia Basin. A seismic reflection transect across the Makarov Basin, located between the Mendeleev and Lomonosov Ridges, shows a complete undisturbed sedimentary section of Mesozoic/Cenozoic age. In contrast to the Mendeleev Ridge, the margin of the Lomonosov Ridge is wide and shows...

The diversity of courtship displays throughout the animal kingdom is immense and displays can range from seemingly simple, to incredibly complex. Signalers often possess elaborate morphological adaptations for signals directed at a specific sensory modality in receivers. In some cases, these signals are so compelling to human observers, the possibility that important signals exist in other sens...

The primary focus of a structural shake table system is the accurate reproduction of acceleration records for testing. However, many systems deliver variable and less than optimal performance, particularly when reproducing large near-field seismic events that require extreme table performance. Improved identification and control methods are developed for large hydraulic servo-actuated shake tab...

This study focuses on measurements of clastic rocks ranging from 3 Hz up to 500 kHz in the laboratory and their application to well log analysis and a time-lapse study in the North Sea. Measurements of elastic properties over a large frequency spectrum can provide a better understanding of the dispersion and attenuation mechanisms in rocks and help to predict and model these effects. Sandstones...