2,572 research outputs found
Migrant Labour in the Russian Economy: a Burden or a Blessing?
The article discusses the potential threats and benefits of external labour migration for the Russian economy through establishing cause-effect relations between the migration processes and the current economic situation. The analysis of statistical data on the development of Russian regions and on the demographic, migration, and financial trends in the country allows us to assess the potential risks of using the labour of external migrants. External migration may damage the Russian economy: it may result in depreciation of the Russian rouble; a growing de cit in the balance of payments; and in an increasing loads on the country’s pension system. We should not forget, however, that external migration can also bring a number of benefits: it can rejuvenate the population and supply human resources to those Russian regions which experience the shortages of the workforce for blue-collar jobs. Moreover, migrants make contributions to the federal budget by paying fees for work patents. The state government may use the results of this research to improve its migration and labour policy and to develop a state program to stimulate external and internal migrants to find employment in workforce shortage areas. This research shows the connection between labour migration and economic activity of local population; reveals the factors of external labour migration; and analyzes the effect migration has on the host country
CP Violation in b->s Decays and New Physics Phases
We present new measurements of CP-violation parameters in B0->phi/Ks, K+K-Ks,
f0(980)Ks, eta'Ks, omega/Ks, Pi0/Ks, and K*0(KsPi0)/gamma decays based on a
sample of 275x10^6 BBbar pairs collected at the Y(4S) resonance with the Belle
detector at the KEKB energy-asymmetric e+e- collider. One neutral B meson is
fully reconstructed in one of the specified decay channels, and the flavor of
the accompanying B meson is identified from its decay products. CP-violation
parameters for each of the decay modes are obtained from the asymmetries in the
distributions of the proper-time intervals between the two B decays. All
results are preliminary.Comment: 4 pages, 3 figures, Proceedings to DPF2004, Riverside, C
Dalitz Analysis of B=>Khh Decays at Belle
We report results on the Dalitz analysis of three-body charmless
B+=>K+pi+pi-, B0=>K0pi+pi- and B+=>K+K+K- decays including searches for direct
CP violation in the B+=>K+pi+pi- mode. Branching fractions for a number of
quasi-two-body intermediate states are reported. We also observe evidence with
3.9 sigma significance for a large direct CP violation in B+-=>rho(770)0K+-
channel. This is the first evidence for CP violation in a charged meson decay.
The results are obtained using a Dalitz analysis technique with a large data
sample of BBbar pairs collected with the Belle detector operating at the KEKB
asymmetric energy e+e- collider.Comment: 6 pages, 3 figures, contributed to the Proceedings of HADRON'05, Rio
de Janeiro, Brazi
Charmless B decays into three charged track final states
Using a data sample of 10.5 1/fb collected by the Belle detector, three-body
charmless decays B+ --> K+h+h- have been studied. The following branching
fractions have been obtained: Br(B+ --> K+pi-pi+) = (64.8+-10.0+-7.0) x 10**-6
and Br(B+ --> K+K-K+) = (36.5+-6.1+-5.5) x 10**-6. The upper limits for other
combinations of charged kaons and pions have been placed. Analysis of the
intermediate two-body states gives evidence for production of scalar resonances
in charmless B decays.Comment: 4 pages, Proceedings of the 4th International Conference on B Physics
& CP Violation, Ise-Shima, Japan, February 19 - 23, 200
BIOUTILIZATION OF WASTE AGROINDUSTRIAL COMPLEX FOR RECEIVING BIOGAS
A main problem of many countries is the search of promising energy sources.
Biomass (wood, straw, plant residues of agricultural production, manure, etc.) is considered one of
the key renewable energy resources of the future. Annually, juice factories in Ukraine produce
thousands of tons of fruit and berry waste, which during 1-3 days undergo microbiological spoilage
BIOEDAGRADATION OF THERMOPLASTIC POLYURETHANES
Pollution of the environment by the waste of polymers – the planetary problem.
Decomposition of waste takes place in the environment during decades and centuries. It is
prospectively sustainable to use of plastic biomaterials, which can easily be destroyed in the soil.
Starch is one of the cheapest raw materials for the organization of industrial production of
biopolymers. Due to its polysaccharide nature, starch is easily digested by microorganisms of the soi
BIOEDAGRADATION OF THERMOPLASTIC POLYURETHANES
Pollution of the environment by the waste of polymers – the planetary problem.
Decomposition of waste takes place in the environment during decades and centuries. It is
prospectively sustainable to use of plastic biomaterials, which can easily be destroyed in the soil.
Starch is one of the cheapest raw materials for the organization of industrial production of
biopolymers. Due to its polysaccharide nature, starch is easily digested by microorganisms of the soi
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