New mechanism of solution of the kTkT-problem in magnetobiology

The effect of ultralow-frequency or static magnetic and electric fields on biological processes is of huge interest for researchers due to the resonant change of the intensity of biochemical reactions although the energy in such fields is small. A simplified model to study the effect of the weak magnetic and electrical fields on fluctuation of the random ionic currents in blood and to solve the $k_BT$ problem in magnetobiology is suggested. The analytic expression for the kinetic energy of the molecules dissolved in certain liquid media is obtained. The values of the magnetic field leading to resonant effects in capillaries are estimated. The numerical estimates showed that the resonant values of the energy of molecular in the capillaries and aorta are different: under identical conditions a molecule of the aorta gets $10^{-9}$ times less energy than the molecules in blood capillaries. So the capillaries are very sensitive to the resonant effect, with an approach to the resonant value of the magnetic field strength, the average energy of the molecule localized in the capillary is increased by several orders of magnitude as compared to its thermal energy, this value of the energy is sufficient for the deterioration of the chemical bonds.Comment: 10 pages, Accepted to the Journal Central European Journal of Physic

Analysis of the Medicinal Products for Human Use Authorised in the Russian Federation

The available range of medicinal products is growing every year.The aim of the study was to analyse the range of medicines authorised in the Russian Federation.Materials and methods: the analysis covered the data presented in the State Register of Medicines (as of June 2021) and the current regulations specifying the range of medicines.Results: this article presents the results of analysis of medicines authorised in the Russian Federation, in terms of the following parameters: international non-proprietary names, trade names, groups according to the Anatomical Therapeutic Chemical Classification System, dosage forms, routes of administration, primary and secondary packaging, storage conditions, and shelf life. The analysis demonstrated that there are over 19 thousand medicines authorised in the Russian Federation, most of which are produced in Russia. The largest groups of medicines are antimicrobial products for systemic use, medicines for the treatment of nervous system and cardiovascular system disorders. The most common dosage form is tablets, and the most common primary packaging is vials. The most frequent storage temperature requirements are 15–25 and 2–8 °C. About half of all medicines have the shelf life of 3 years.Conclusions: the data presented in this article can be used for unification of approaches to maintaining the State Register of Medicines, elaboration of reference books, and will be useful for medicine developers and manufacturers when planning and preparing regulatory submissions

Measurement of the Longitudinal Spin Transfer to Lambda and Anti-Lambda Hyperons in Polarised Muon DIS

The longitudinal polarisation transfer from muons to lambda and anti-lambda hyperons, D_LL, has been studied in deep inelastic scattering off an unpolarised isoscalar target at the COMPASS experiment at CERN. The spin transfers to lambda and anti-lambda produced in the current fragmentation region exhibit different behaviours as a function of x and xF . The measured x and xF dependences of D^lambda_LL are compatible with zero, while D^anti-lambda_LL tends to increase with xF, reaching values of 0.4 - 0.5. The resulting average values are D^lambda_LL = -0.012 +- 0.047 +- 0.024 and D^anti-lambda_LL = 0.249 +- 0.056 +- 0.049. These results are discussed in the frame of recent model calculations.Comment: 13 pages, 7 figure

A study of the centrally produced baryon-antibaryon systems in pp interactions at 450 GeV/c

A study of the centrally produced ppbar, ppbarpi, ppbarpipi and lambda lambda channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. No significant new structures are observed in the mass spectra, however, important new information on the production dynamics is obtained. A systematic study of the production properties of these systems has been performed and it is found that these systems are not produced dominantly by double Pomeron exchange.Comment: 13 pages, Latex, 4 Figure

First Measurement of Chiral Dynamics in \pi^- \gamma -> \pi^- \pi^- \pi^+

The COMPASS collaboration at CERN has investigated the \pi^- \gamma -> \pi^- \pi^- \pi^+ reaction at center-of-momentum energy below five pion masses, sqrt(s) < 5 m(\pi), embedded in the Primakoff reaction of 190 GeV pions impinging on a lead target. Exchange of quasi-real photons is selected by isolating the sharp Coulomb peak observed at smallest momentum transfers, t' < 0.001 (GeV/c)^2. Using partial-wave analysis techniques, the scattering intensity of Coulomb production described in terms of chiral dynamics and its dependence on the 3\pi-invariant mass m(3\pi) = sqrt(s) were extracted. The absolute cross section was determined in seven bins of $\sqrt{s}$ with an overall precision of 20%. At leading order, the result is found to be in good agreement with the prediction of chiral perturbation theory over the whole energy range investigated.Comment: 10 pages, 5 figure

Observation of a J^PC = 1-+ exotic resonance in diffractive dissociation of 190 GeV/c pi- into pi- pi- pi+

The COMPASS experiment at the CERN SPS has studied the diffractive dissociation of negative pions into the pi- pi- pi+ final state using a 190 GeV/c pion beam hitting a lead target. A partial wave analysis has been performed on a sample of 420000 events taken at values of the squared 4-momentum transfer t' between 0.1 and 1 GeV^2/c^2. The well-known resonances a1(1260), a2(1320), and pi2(1670) are clearly observed. In addition, the data show a significant natural parity exchange production of a resonance with spin-exotic quantum numbers J^PC = 1-+ at 1.66 GeV/c^2 decaying to rho pi. The resonant nature of this wave is evident from the mass-dependent phase differences to the J^PC = 2-+ and 1++ waves. From a mass-dependent fit a resonance mass of 1660 +- 10+0-64 MeV/c^2 and a width of 269+-21+42-64 MeV/c^2 is deduced.Comment: 7 page, 3 figures; version 2 gives some more details, data unchanged; version 3 updated authors, text shortened, data unchange

Анализ ассортимента лекарственных средств, разрешенных к медицинскому применению в Российской Федерации

The available range of medicinal products is growing every year.The aim of the study was to analyse the range of medicines authorised in the Russian Federation.Materials and methods: the analysis covered the data presented in the State Register of Medicines (as of June 2021) and the current regulations specifying the range of medicines.Results: this article presents the results of analysis of medicines authorised in the Russian Federation, in terms of the following parameters: international non-proprietary names, trade names, groups according to the Anatomical Therapeutic Chemical Classification System, dosage forms, routes of administration, primary and secondary packaging, storage conditions, and shelf life. The analysis demonstrated that there are over 19 thousand medicines authorised in the Russian Federation, most of which are produced in Russia. The largest groups of medicines are antimicrobial products for systemic use, medicines for the treatment of nervous system and cardiovascular system disorders. The most common dosage form is tablets, and the most common primary packaging is vials. The most frequent storage temperature requirements are 15–25 and 2–8 °C. About half of all medicines have the shelf life of 3 years.Conclusions: the data presented in this article can be used for unification of approaches to maintaining the State Register of Medicines, elaboration of reference books, and will be useful for medicine developers and manufacturers when planning and preparing regulatory submissions.Ассортимент лекарственных средств с каждым годом расширяется.Цель работы: анализ ассортимента лекарственных средств, разрешенных к медицинскому применению в Российской Федерации.Материалы и методы: анализ проведен на основе данных государственного реестра лекарственных средств по состоянию на июнь 2021 г. и действующих нормативных правовых актов, регламентирующих номенклатуру лекарственных средств.Результаты: представлены результаты анализа ассортимента зарегистрированных в Российской Федерации лекарственных средств по следующим параметрам: международные непатентованные наименования, торговые наименования, группы анатомо-терапевтической химической классификации, лекарственные формы, пути введения, первичная и вторичная упаковка, условия хранения, сроки годности. Проведенный нами анализ показал, что ассортимент лекарственных средств, разрешенных к медицинскому применению в Российской Федерации, насчитывает более 19 тыс. позиций, большинство из которых произведено в Российской Федерации. Преобладают противомикробные лекарственные препараты для системного использования, препараты для лечения заболеваний нервной и сердечнососудистой систем. Наиболее распространенными лекарственными формами являются таблетки, первичной упаковкой — флаконы. Среди режимов хранения превалируют температурные интервалы 15–25 и 2–8 °C. Около половины всех включенных в реестр лекарственных средств имеют срок годности 3 года.Выводы: представленная в статье информация может быть учтена при унификации подходов к ведению государственного реестра лекарственных средств, в том числе в процессе создания соответствующих справочников, а также использована разработчиками и производителями лекарственных средств при подготовке к экспертизе и регистрации лекарственных препаратов и формировании регистрационных досье

Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons

Azimuthal asymmetries in semi-inclusive production of positive (h^+) and negative hadrons (h^-) have been measured by scattering 160 GeV muons off longitudinally polarised deuterons at CERN. The asymmetries were decomposed in several terms according to their expected modulation in the azimuthal angle phi of the outgoing hadron. Each term receives contributions from one or several spin and transverse-momentum-dependent parton distribution and fragmentation functions. The amplitudes of all phi-modulation terms of the hadron asymmetries integrated over the kinematic variables are found to be consistent with zero within statistical errors, while the constant terms are nonzero and equal for h^+ and h^- within the statistical errors. The dependencies of the phi-modulated terms versus the Bjorken momentum fraction x, the hadron fractional momentum z, and the hadron transverse momentum p_h^T were studied. The x dependence of the constant terms for both positive and negative hadrons is in agreement with the longitudinal double-spin hadron asymmetries, measured in semi-inclusive deep-inelastic scattering. The x dependence of the sin phi-modulation term is less pronounced than that in the corresponding HERMES data. All other dependencies of the phi-modulation amplitudes are consistent with zero within the statistical errors.Comment: 12 pages, 11 Figures; revision 1 signs in Eq 5 corrected, polishe

Experimental study of the decay KL0→π0ννˉK_L^0\to\pi^0\nu\bar{\nu}

The first dedicated search for the rare neutral-kaon decay $K_L^0\to\pi^0\nu\bar{\nu}$ has been carried out in the E391a experiment at the KEK 12-GeV proton synchrotron. The final upper limit of 2.6 $\times 10^{-8}$ at the 90% confidence level was set on the branching ratio for the decay.Comment: 23 pages, 27 figures, accepted for publication as a regular article in Physical Review

A study of pseudoscalar states produced centrally in pp interactions at 450 GeV/c

A study has been made of pseudoscalar mesons produced centrally in pp interactions. The results show that the eta and etaprime appear to have a similar production mechanism which differs from that of the pi0. The production properties of the eta and etaprime are not consistent with what is expected from double Pomeron exchange. In addition the production mechanism for the eta and etaprime is such that the production cross section are greatest when the azimuthal angle between the pT vectors of the two protons is 90 degrees.Comment: 11 pages, Latex, 3 Figure