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31.
32.
V. V. Burov S. M. Dorkin V. N. Dostovalov 《Zeitschrift für Physik A Hadrons and Nuclei》1984,315(2):205-211
It is shown that a small (5–8)% admixture of the six-quark component in the deuteron wave function which is to be introduced to describe elastic eD-scattering at large transfer momenta changes essentially the behaviour of the polarization tensorT 20 and the ratioR of the vectorP x to tensor polarizationP xz compared to the models which do not take such admixtures into account. The corresponding experiments are emphasized to be important, which are aimed at testing the predictions of models including six-quark admixtures in the deuteron. 相似文献
33.
V. V. Burov S. M. Dorkin V. K. Lukyanov A. I. Titov 《Zeitschrift für Physik A Hadrons and Nuclei》1982,306(2):149-154
The charge and quadrupole deuteron form factors are investigated in a wide region of momentum transfer taking into account the deuteron six quark structure. It is shown that the contribution due to the antisymmetrization of the wave function with respect to quark variables is small and the contribution of the “true” six quark admixtures plays the leading role in the region of large momentum transfer. 相似文献
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35.
S. V. Burov O. A. Kaurov V. F. Martynov M. P. Smirnova 《Chemistry of Natural Compounds》1980,16(5):518-524
In order to study the influence of substituents of the aromatic ring of D-phenyl-alanine on the inhibiting capacity of luliberian
analogs, we have synthesized two new analogs:
and
luliberin. The synthesis was performed by the fragmentary condensation method using 2+(3+5) and 2+(5+3) schemes. A new and
convenient method of obtaining the amide of the C-terminal tetrapeptide of the luliberin sequence has been developed. In the
condensation of the fragments, both the azide and the carbodimide method of synthesis with the addition of l-hydroxybenzotriazole
were used. The guanidino group of arginine was protected by nitration, while the hydroxy groups of serine and of tyrosine
were not protected. The complete elimination of the protective groups from the decapeptides was performed by catalytic hydrogenation
over Pd on carbon and by anhydrous HF with the addition of anisole at 0°C. The protected octa- and decapeptides were purified
by gel filtration on Sephadex LH-20 in ethanol or by preparative thin-layer chromatography on silica gel plates. The final
peptides were purified by ion-ex-exchange chromatography on Sephadex CM-25.
A. A. Zhdanov Leningrad State University. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 706–714, September–October,
1980. 相似文献
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38.
We suggest an algorithm that permits one to prove the existence of limit periodic trajectories (cycles) in two-dimensional nonautonomous dissipative systems with periodic coefficients with the use of computational methods alone. We prove a fixed point theorem for two-dimensional mappings and describe methods of its application to two-dimensional nonautonomous systems with the use of the Poincaré mapping and interval arithmetics. 相似文献
39.
Single particle tracking of mRNA molecules and lipid granules in living cells shows that the time averaged mean squared displacement delta2[over ] of individual particles remains a random variable while indicating that the particle motion is subdiffusive. We investigate this type of ergodicity breaking within the continuous time random walk model and show that delta2[over ] differs from the corresponding ensemble average. In particular we derive the distribution for the fluctuations of the random variable delta2[over ]. Similarly we quantify the response to a constant external field, revealing a generalization of the Einstein relation. Consequences for the interpretation of single molecule tracking data are discussed. 相似文献
40.
Doklady Physics - Generating functions that enable us to calculate the components of the Euler–Poinsot tensor using differentiation are introduced. The role of these functions is similar to... 相似文献