One-rank interaction kernel of the two-nucleon system for medium and high energies

A new version of the separable kernel of the nucleon-nucleon interaction in the Bethe-Salpeter approach is presented. The phase shifts are fitted to recent experimental data for singlet and uncoupled triplet partial waves of the neutron-proton scattering with total angular momenta J=0,1. The results are compared with other model calculations.Comment: 10 pages, 5 figures, 3 table

Mesh ratios for best-packing and limits of minimal energy configurations

For $N$-point best-packing configurations $\omega_N$ on a compact metric space $(A,\rho)$, we obtain estimates for the mesh-separation ratio $\gamma(\omega_N,A)$, which is the quotient of the covering radius of $\omega_N$ relative to $A$ and the minimum pairwise distance between points in $\omega_N$. For best-packing configurations $\omega_N$ that arise as limits of minimal Riesz $s$-energy configurations as $s\to \infty$, we prove that $\gamma(\omega_N,A)\le 1$ and this bound can be attained even for the sphere. In the particular case when N=5 on $S^2$ with $\rho$ the Euclidean metric, we prove our main result that among the infinitely many 5-point best-packing configurations there is a unique configuration, namely a square-base pyramid $\omega_5^*$, that is the limit (as $s\to \infty$) of 5-point $s$-energy minimizing configurations. Moreover, $\gamma(\omega_5^*,S^2)=1$

Modern high german language morphology development

Анализ прозаического текста, как иллюстративного примера имеющихся результатов развития, прежде всего, морфологического строя нововерхненемецкого языка, достигнутые в ходе становления системы немецкого языка в целомyesБелгородский государственный университе

Electrical conductivity of rocks at high pressures and temperatures

The results of studies of the electrical conductivity in the most widely distributed types of igneous rocks, at temperatures of up to 1200 C, at atmospheric pressure, and also at temperatures of up to 700 C and at pressures of up to 20,000 kg/sq cm are described. The figures of electrical conductivity, of activaation energy and of the preexponential coefficient are presented and the dependence of these parameters on the petrochemical parameters of the rocks are reviewed. The possible electrical conductivities for the depository, granite and basalt layers of the Earth's crust and of the upper mantle are presented, as well as the electrical conductivity distribution to the depth of 200 to 240 km for different geological structures

Evolution of the Bavarian dialect lexical system

The article deals with the specific features of the German language on the Bavarian dialect lexical level. The dialect is remarkable for its innovations and variety of linguistic forms on all levels of its system. The notion “Bavarian dialect” and its correlation with literary German language is being researched. The comparative analysis reveals the facts of deviation from the standards of the literary German language, especially in vocabulary and semantic

German language system selfdevelopment

Взгляды представителей различных направлений лингвистической науки на проблему развития языка, экстралингвистические и внутриязыковые причины саморазвития системы языка, основные тенденции развития современного немецкого языка на примере устойчивых предложно-именных сочетанийyesБелгородский государственный университе