نتایج جستجو برای: the russian federation
تعداد نتایج: 16059868 فیلتر نتایج به سال:
We calculate electromagnetic and QCD isospin–breaking corrections to the energy level displacement of the ground state of kaonic hydrogen. Our results, calculated within a quantum field theoretic and relativistic covariant approach, agree well with those obtained by Meißner, Raha and Rusetsky within the non–relativistic effective Lagrangian approach based on Chiral Perturbation Theory by Gasser...
We calculate the rates of the radiative transitions np → 1s+γ in kaonic hydrogen and kaonic deuterium, induced by strong low–energy interactions and enhanced by Coulomb interactions. The obtained results should be taken into account for the theoretical analysis of the experimental data on the X–ray spectra and yields in kaonic atoms. PACS: 36.10.Gv, 33.20.Rm, 13.75.Jz, 11.10.Ef E–mail: ivanov@k...
Sergey Astakhov1 Oleg Astakhov2 Vladimir Astakhov3 Jürgen Kurths4 1Information Security of Automated Systems Dept., Yuri Gagarin Technical University of Saratov, Politekhnicheskaya st. 77, Saratov 410054, Russian Federation 2Department of Dynamic Modeling and Biomedical Engineering, Saratov State University, Astrakhanskaya st. 83, Saratov 410012, Russian Federation 3Radioelectronics and Telecom...
Since the first case of AIDS was identified in 1985, Russia has maintained a low HIVseroprevalence rate, currently at 0.05. However, there are signs of an emerging HIV/AIDS epidemic fueled by several factors. As of September 1999, a total of 19,105 HIV infections were registered, although the estimated number exceeds 50,000. The most recent trend in HIV/AIDS transmission is through injecting dr...
Failure to achieve high levels of immunity among children contributed to the epidemic of diphtheria that occurred in the Russian Federation during the 1990s. A major factor in this failure was the extensive list of contraindications to vaccination that was in use throughout the countries of the former Soviet Union. In 1980, the Ministry of Health (MOH) of the Soviet Union adopted an extensive l...
INTRODUCTION The coverage of pediatric pertussis vaccination in the Russian Federation is high, generally using a diphtheria, tetanus, and whole-cell pertussis vaccine in a 3-, 4.5-, and 6-month primary series and with a booster at 18 months of age. However, with no registered pertussis vaccines for adults, unvaccinated adolescents and adults can be a major source of infection of infants under ...
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