Forming graduate students’ vision regarding pedagogical activity of a classical university professor

In the introduction it is stated that forming graduate students’ readiness for pedagogical activity is based on the methodology of the post-non-classical science, which allows to use qualitative research methods aimed at interpreting opinions, standpoints, values of the actors as legitimate “data” and to define understanding of pedagogical activity’s specifics and the key trends in the development of higher education. Theoretical analysisis dedicated to understanding the purpose and meaning of pedagogical activity of a university professor from the standpoint of holistic approach. The article analyses valuable, theoretical and technological components of activity. It is pointed out that pedagogical activity can be logically analysed as a type of activity aimed at certain pedagogical problems. Empirical analysis is built around describing research results within the framework of solving academic pedagogical tasks by graduate students of Saratov State National Research University within the framework of the course named “University-level Pedagogics”. The article presents the results of academic tasks performed by graduate students. Conclusion Graduate students working as teaching assistants and instructors showed greater psychological readiness to carry out teaching activities at university. On the one hand, a significant fraction of graduate students has virtually no experience in teaching and, due to this, has certain expectations of teaching practice; on the other hand, the empirical study results indicate that it is this category that is interested in working under conditions of changes in the digital environment and mastering new educational technologies

Bound-state properties from field-theory correlators

We discuss the details of calculating hadron properties from the OPE for correlators of quark currents in QCD, which constitutes the basis of the method of QCD sum rules. The main emphasis is laid on gaining control over the systematic uncertainties of the hadron parameters obtained within this method. We start with examples from quantum mechanics, where bound-state properties may be calculated independently in two ways: exactly, by solving the Schroedinger equation, and approximately, by the method of sum rules. Knowing the exact solution allows us to control each step of the sum-rule extraction procedure. On the basis of this analysis, we formulate several improvements of the method of sum rules. We then apply these modifications to the analysis of the decay constants of heavy mesons.Comment: Invited talk at "IIIrd International Conference on Hadron Physics TROIA'11", 22 - 25 August 2011, Canakkale Turkey, to be published in Journal of Physics: Conference Series (JPCS

Features of nephropathy in various types of thrombotic microagniopathies in obstetric practice

Introduction. We assessed the features of kidney injury in patients with different types of TMA during pregnancy, taking into consideration the fact that the acute kidney injury (AKI) that occurs during pregnancy or in the early postpartum period is main- ly caused by various types of thrombotic microangiopathies (TMA), and AKI itself is a serious obstetric complication with the risk of serious complications and mortality for both mother and fetus.Objective of the study. To study the features of nephropathy in different types of pregnancy-associated TMA.Materials and methods. The study included 313 pregnant women, women in childbirth and puerperas, of which 71 women had atypical hemolytic uremic syndrome (aHUS), 124 – HELLP syndrome, 70 – varying degrees of severity of PE, a group of patients with more rare causes of TMA was also identified: TTP, CAPS and sepsis (13 patients) and 45 patients for the control group. We assessed and compared the main clinical, laboratory and instrumental data, and assessed the outcome of labour. Also, histological examination of the kidneys was performed in five patients with aHUS.Results and discussion. The results of the study have shown that the most severe manifestations of TMA in the form of target organ injury and nephropathy are usually occur in patients with aHUS, where all women developed AKI, in some cases with the formation of chronic kidney disease. In the HELLP syndrome group, AKI was recorded in 39%, but renal function quickly restored. It was found that the very fact of the presence of AKI points to a more unfavourable prognosis not only for the patients themselves, but also for the child, being the main risk factor for perinatal death. The findings of urinary sediment tests and morphological evaluation indicate that the resulting ischemia of the renal tissue in cases of aHUS, HELLP syndrome and other types of TMA can lead to tubular necrosis as compared with PE. Our results suggest that it is AKI in HELLP syndrome that is the main risk factor for perinatal death. Alas, this relationship is difficult to trace in patients with aHUS, as all of them had AKI.Conclusions. Timely recognition of the AKI phenomenon in all cases of obstetric TMA can reduce the risks for both mother and fetus. Both the prognosis for mother and the prognosis for child depend on AKI, and timely therapy can lead to a regression of AKI phenomena and the complete restoration of renal function

Hydrogen isotope exchange in proton-conducting oxides during proton and deuteron irradiation

It has been found that during accelerator beam deuteron irradiation of a proton-conducting oxide containing protium H/D isotope exchange between beam ions and dissolved ions takes place. This isotope exchange was also observed during high-energy proton irradiation of the oxide containing dissolved deuterium atoms. These results provide evidence to a new type of hydrogen isotope exchange. Any appreciable effects of conjugate diffusion of hydrogen and oxygen ions and of the interface processes on the isotope exchange rate were eliminated. In this type of exchange the rate of replacement of H+ by D+ and of D+ by H+ was determined only by the properties of the crystal. The discovered effect was used in our study to obtain experimental data characterizing the dynamic and equilibrium behavior of hydrogen isotopes in the oxide BaZr0.9Y0.1O3 - δ. © 2013 Pleiades Publishing, Ltd

Embryonic infections as the main cause of the death of children with extremely low birth weight

In all cases o f death of children with extremely low body weight (100%) generalized congenital infection of bacterial and bacterial-fungal etiology were detecte

Применение метода "Detensor" у больных, длительно страдающих обструктивными заболеваниями легких

Detensor elastic therapeutic mats provide mild vertebral traction as patients lie relaxed, without strapping, to unload the kinematic system of the spinal column with optimum lines of traction force.The present study demonstrates Detensor effects on the functional state of respiratory muscles of chronic obstructive pulmonary patients. The characteristics dependent on efforts during treatment (VC, PIF, PEF, FIF1 and MW) reveal a major increase after ten sessions in the experimental group, while staying unchanged in the control group.Detensor treatment as part of all-round rehabilitation of COP patients spectacularly increases respiratory muscular strength and endurance.Simplicity of this treatment makes it applicable not only in hospital but in outpatient clinics and at home.Метод “Детензор” предназначен для щадящего вытяжения позвоночного столба при помощи специального эластичного устройства терапевтического мата "Детензор” . При укладывании пациента (свободно, без привязывания) на “Детензор” в условиях релаксации формируются оптимально направленные силы вытяжения, что приводит к разгрузке кинематической системы позвоночника.Проведенное исследование показывает эффективность воздействия метода “Детензор” на функциональное состояние дыхательных мышц у больных ХОЗЛ. Параметры, зависимые от усилий во время выполнения маневра (VC, PIF, PEF, FIF|, M W ) достоверно возрастают после 10 сеансов в основной группе, без изменений — в контрольной группе. Повышается и уровень M W у больных в основной группе.Таким образом, включение метода в комплексную реабилитацию больных ХОЗЛ улучшает показатели ФВД, отражающие деятельность респираторных мышц (их силу и выносливость).Простота метода позволяет применять его не только при стационарном лечении, но и в амбулаторной практике и на дому

New Physics in b -> s mu+ mu-: CP-Violating Observables

We perform a comprehensive study of the impact of new-physics operators with different Lorentz structures on CP-violating observables involving the b -> s mu+ mu- transition. We examine the effects of new vector-axial vector (VA), scalar-pseudoscalar (SP) and tensor (T) interactions on the CP asymmetries in the branching ratios and forward-backward asymmetries of Bs -> mu mu, B -> Xs mu mu, Bs -> mu mu gamma, B -> K mu mu, and B -> K* mu mu. In B -> K* mu mu, we also explore the direct CP asymmetries in the longitudinal polarization fraction f_L and the angular asymmetries A_T^{(2)} and A_{LT}, as well as the triple-product CP asymmetries A_T^{(im)} and A^{(im)}_{LT}. We find that, in almost all cases, the CP-violating observables are sensitive only to new physics which involves VA operators. The VA new physics may therefore be unambiguously identified by a combined analysis of future measurements of these CP-violating observables.Comment: 26 pages, JHEP format, 21 figures. LaTeX error corrected, figures removed and changed, a comparison with previous literature added, references added and updated. Conclusions unchange

New Physics in b -> s mu+ mu-: CP-Conserving Observables

We perform a comprehensive study of the impact of new-physics operators with different Lorentz structures on decays involving the b -> s mu+ mu- transition. We examine the effects of new vector-axial vector (VA), scalar-pseudoscalar (SP) and tensor (T) interactions on the differential branching ratios and forward-backward asymmetries (A_{FB}'s) of Bsbar -> mu+ mu-, Bdbar -> Xs mu+ mu-, Bsbar -> mu+ mu- gamma, Bdbar -> Kbar mu+ mu-, and Bdbar -> K* mu+ mu-, taking the new-physics couplings to be real. In Bdbar -> K* mu+ mu-, we further explore the polarization fraction f_L, the angular asymmetry A_T^{(2)}, and the longitudinal-transverse asymmetry A_{LT}. We identify the Lorentz structures that would significantly impact these observables, providing analytical arguments in terms of the contributions from the individual operators and their interference terms. In particular, we show that while the new VA operators can significantly enhance most of the asymmetries beyond the Standard Model predictions, the SP and T operators can do this only for A_{FB} in Bdbar -> Kbar mu+ mu-.Comment: 54 pages, JHEP format, 45 figures (included). 5/6/2013: typos in K* mu mu angular coefficients corrected, typos in Eq. (D.12) corrected, added a missing term in I3LT in Eq. (D.16). Numerical analysis unchange

A glial amino-acid transporter controls synapse strength and courtship in Drosophila

Mate choice is an evolutionarily critical decision that requires the detection of multiple sex-specific signals followed by central integration of these signals to direct appropriate behavior. The mechanisms controlling mate choice remain poorly understood. Here, we show that the glial amino-acid transporter genderblind controls whether Drosophila melanogaster males will attempt to mate with other males. Genderblind (gb) mutant males showed no alteration in heterosexual courtship or copulation, but were attracted to normally unappealing male species-specific chemosensory cues. As a result, genderblind mutant males courted and attempted to copulate with other Drosophila males. This homosexual behavior could be induced within hours using inducible RNAi, suggesting that genderblind controls nervous system function rather than its development. Consistent with this, and indicating that glial genderblind regulates ambient extracellular glutamate to suppress glutamatergic synapse strength in vivo, homosexual behavior could be turned on and off by altering glutamatergic transmission pharmacologically and/or genetically