An optimized medium for clonal micropropagation of grapevine

Research Not

INTEGRATION PROCESSES AND THEIR EFFECT ON IMMIGRATION POLICY

The article deals with theoretical aspects of correlation between integration and immigration processes. After the research of current theoretical background related to the international economic integration the authors believe that the so-called triad «integration processes - waves of innovation - migration processes» should be examined individually. That is to say, the dynamics of an inheriting wave of innovation is consistent with the mobility of correlation between scarcity and redundancy of labour supply. This implies expediency of the regulatory action on these processes, including the implementation of the selective immigration policy and reasonable emigration policy, which may be either confirmed or rejected in an econometric framework, making it possible to trace the correlation of the immigration processes and performance of GDP in individual countries, members of integration associations

INTEGRATION PROCESSES AND THEIR EFFECT ON IMMIGRATION POLICY

The article deals with theoretical aspects of correlation between integration and immigration processes. After the research of current theoretical background related to the international economic integration the authors believe that the so-called triad «integration processes - waves of innovation - migration processes» should be examined individually. That is to say, the dynamics of an inheriting wave of innovation is consistent with the mobility of correlation between scarcity and redundancy of labour supply. This implies expediency of the regulatory action on these processes, including the implementation of the selective immigration policy and reasonable emigration policy, which may be either confirmed or rejected in an econometric framework, making it possible to trace the correlation of the immigration processes and performance of GDP in individual countries, members of integration associations

Spectroscopic investigations of dispersion-shifted fiber with thin active Bi-doped ring and high nonlinear refractive index

A germanium-doped silica-core fiber with an active region in the form of a thin ring of silica doped with bismuth ions was fabricated. Bismuth doping in the ring surrounding the core allows to stabilize bismuth in silica glass, and it does not impose any restrictions on the composition of the core. The bismuth concentration in the ring is less than 0.2 wt.%. The GeO2 concentration in the core is more than 15 mol.%. A high germanium concentration in the core allows to shift the zero dispersion wavelength to 1860 nm and to obtain a high nonlinear refractive index (n2 more than 3,2*10-20 m2/W). Spectroscopic investigations were carried out in the visible and near infrared (800-1700 nm) spectral range. Despite the small concentration of bismuth, we observed the absorption and luminescence characteristic bands, confirming the presence of bismuth active centers in silica glass. Upon pumping at 1350 nm the on/off gain spectrum was measured on a 20-m fiber. The gain was observed throughout investigated range of 1430-1530 nm. The maximal gain of ~9.5 dB was obtained near 1430 nm. The results of the spectroscopic investigations of the fiber with a thin active Bi-doped ring showed prospects of the creation and application of such fiber type for laser and nonlinear optics

Breeding for Ukrainian table grape varieties

Research Not

The effects of deformation inertia (kinetic energy) in the orbital and spin evolution of close-in bodies

The purpose of this work is to evaluate the effect of deformation inertia on tide dynamics, particularly within the context of the tide response equations proposed independently by Boué et al. (Celest Mech Dyn Astron 126:31–60, 2016) and Ragazzo and Ruiz (Celest Mech Dyn Astron 128(1):19–59, 2017). The singular limit as the inertia tends to zero is analyzed, and equations for the small inertia regime are proposed. The analysis of Love numbers shows that, independently of the rheology, deformation inertia can be neglected if the tide-forcing frequency is much smaller than the frequency of small oscillations of an ideal body made of a perfect (inviscid) fluid with the same inertial and gravitational properties of the original body. Finally, numerical integration of the full set of equations, which couples tide, spin and orbit, is used to evaluate the effect of inertia on the overall motion. The results are consistent with those obtained from the Love number analysis. The conclusion is that, from the point of view of orbital evolution of celestial bodies, deformation inertia can be safely neglected. (Exceptions may occur when a higher-order harmonic of the tide forcing has a high amplitude.)publishe