After the publication of the preceding paper (1), I found a mistake in eq. (2) and another in deriving eq. (3) from (2), to my great sorrow. The eq. (2) as an approximate expression of Px should have been (1) The basic idea was dPx=-x/k' adx, in other words, that the potential contributed to the point X (the point y=0, fig.1 of the preceding paper) by a small active region dx at x, is proportio...

H and C NMR spectra were recorded with Bruker DPX-400, AVANCE-400 and DRX-500. The numbering of the protons relate to the numbering chosen in Fig. 1. High resolution mass spectra were obtained with a Micromass LCT via loop-mode injection from a Waters (Alliance 2695) HPLC system. Alternatively a Micromass Q-TOF in combination with a Waters Aquity Ultraperformance LC system was employed. Ionizat...

Several memetic algorithms (MAs) – evolutionary algorithms incorporating local search – have been proposed for the traveling salesman problem (TSP). Much effort has been spent to develop recombination operators for MAs which aim to exploit problem characteristics to achieve a highly effective search. In this paper, several recombination operators for the TSP are compared. For the purpose of ide...

The histological differentiation of neuronal from glial nuclei may be useful in the identification of tumours and in the study of developing nervous tissues. The following method does this by staining the glial nucleus red and the neuronal nucleus green. It also stains other structures in the neural parenchyma. Formol-fixed tissues taken down to water and embedded in paraffin are used. 1 The se...

The emerging role of internal dynamics in protein fold and function requires new avenues of structure analysis. We analyzed the dynamically restrained conformational ensemble of ubiquitin generated from residual dipolar coupling data, in terms of protruding and buried atoms as well as interatomic distances, using four proximity-based algorithms, CX, DPX, PRIDE and PRIDE-NMR (http://hydra.icgeb....

The aim of this paper is to review some of the standards, connected with multimedia and their metadata. We start with MPEG family. MPEG-21 provides an open framework for multimedia delivery and consumption. MPEG7 is a multimedia content description standard. With the Internet grow several format were proposed for media scenes description. Some of them are open standards such as: VRML1, X3D2, SM...