Development polarity

The directions in which tension or compression develop polarization parallel to the strain are called the piezoelectric axes of the ciy stal. Thus the axis of a hexagonal quartz crystal indicated by the arrows in Fig. 1 is known as an X-axis, and a plate cut, as shown, with its faces perpendicular to this direction is an X-cut while one cut with its faces parallel to the lateral faces of the crystal is a Y-cut. ... 

When one endeavours to apply such separation techniques as solvent extraction and the various forms of chromatography to imidazoles, one must be aware of the significant influence that the substituents (and their positions) have on molecules which have a well-developed polar nature and a tendency to form associates. 

Because it is well established that radical cations of monoamines and monosulphides have substantial h)q5erfine couplings only for the protons at carbon atoms adjacent to the radical centre, " nitrogen-centred Cys can develop polarizations only for of the substrate, while sulphur-centred Cys must cause both... 

The progression to developing polarity in the distribution of DRMs begins with a uniform distribution of DRM components in resting cells. 

The Markov-type analysis lets us conclude that polarity in molecular crystals built up by dipolar coinpounds is a general property, however, Xnet depends strongly on specific parameters given by intermolecular interactions. A further example is given by solid-solution formation of A-D (crystallizing in a centrosymmetric lattice) with A-A orD—D (centrosymmetricas weU). The (A-D)j, (A— A), and (A-D)i xfC D) crystals can develop polarity for the same reasons discussed above. 

For condensed-phase and macromolecular simulations, we have written an X-Pol software package using the C-p-p language, which has been incorporated into NAMD and CHARMM. The X-Pol program can be used with the popular NDDO-based semiempirical Hamiltonians as well as the recently developed polarized molecular orbital (PMO) model. - Molecular d3mamics simulations of liquid water have been carried out using the NAMD/X-Pol interface. In addition, we have used an earlier version of the X-Pol model in Monte Carlo simulations of liquid water. 

Ji, C., Mei, Y., and Zhang, J. Z. H. [2008], Developing polarized protein-specific charges for protein dynamics MD free energy calculation of pka shifts for asp26/asp20 in thioredoxin, Biophysical Journal 95, 3, pp. 1080-... 

The low /(P) levels (<0.1) of 8N4 reduce the first mechanism to a minor role. Interruption of the power supply resulted in a residual potential of 2 V in the same direction as the applied voltage. This can be generated only by development of a cation concentration gradient through the sample section. As K" " moves towards the cathode, HjO enters from the anolyte. If more K" " exits than slower H30 enters, the developing polarization will slow down and stop the exit. As a... 

Hungarian-developed polar qualification system (101) to distinguish between barley varieties suitable for malting and those more suitable for animal feed. With a Spectr-alyzer 1025 spectrometer operating between 1000-2500 nm that had been calibrated with samples of known composition, discrimination was achieved on the spectral data from whole barley seeds with no known analytical data. 

In TSD the sample b first heated up to the poling temperature under an external electric field E. The correspondingly developing polarization b... 

The most important interaction involved with macrocyclic glycopeptide selectors is the very strong charge-charge interaction that can be modulated playing with the mobile phase pH in the specially developed polar ionic mode. Such charge-charge modulation is possible in reversed-phase mode as well. A recent work showed... 

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