ПОРУШЕННЯ ПРОДУКЦІЇЧИННИКІВ РОСТУ ПРИ ПЛАЦЕНТАРНІЙ ДИСФУНКЦІЇ.

Research is conducted 225 pregnant with placenta dysfunction (PD) with the purpose of determination of violations of products of factors of height (FH) in the different terms of pregnancy. It is shown that violation of products of FH in the system to mother- placenta- fetus is one of pathogenetic factors of development of PD. With the purpose of timely diagnostics of development of PD it is necessary to control the indexes of FH in the group of risk of pregnant, since the early terms of pregnancy.Проведено исследование 225 беременных с плацентарной дисфункцией (ПД) с целью определения нарушений продукции факторов роста (ФР) в разные сроки беременности. Показано, что нарушение продукции ФР в системе мать- плацента- плод является одним из патогенетических факторов развития ПД. С целью своевременной диагностики развития ПД необходимо контролировать показатели ФР в группе риска беременных, начиная с ранних сроков беременности.Проведено дослідження 225 вагітнихз плацентарною дисфункцією (ПД) з метою визначения порушень продукції чинників росту (ЧР) у різні строки вагітності. Показано, що порушення продукції ЧР в системі мати- плацента- плід є одним з патогенетичних факторів розвитку ПД. З метою своєчасної діагностики розвитку ПД необхідно контролювати показники ЧР у групі ризику вагітних, починаючи з ранніх термінів вагітності

Впровадження електронного оцінювання у вищій школі

The purpose of the study is to develop the methodical recommendations for test-designers to cope with challenges of organizing on-line assessment process. In order to achieve this goal we have to reveal the strengths and weak- nesses of e-assessment activities based on analysis of the universities practice. To find out students’ attitude to the issue of the study we have drawn up the questionnaire. The survey results confirm that e-assessment is rated as priority activity by learners thanks to individual approach to teaching/learning process, easily accessible and fast feedback, as well as interactive methods of implementation. Reviewing practical experience of Kryvyi Rih National University (KNU) and Donetsk Law Institute of the Ministry of Internal Affairs of Ukraine (DLI) and summarizing statistical data of the survey we have developed methodical support for designing e-assessment activities which involves: to determine intended recipients and the purpose of testing; select appropriate instruments and e-platform; specify forms of feedback; clarify the tasks; provide knowledge base for operating e-tests etc. Despite plenty of studies in this domain the test-design- ers and test-takers face to typical difficulties while operating e-assessment, and there is lack of research providing methodical practicalities in this field. To ad- dress learners’ and lecturers’ needs we have developed the methodical recommendations, which might be used in the drafting of e-assessment tests for students of different specialisms.Метою дослідження є розробка методичних рекомендацій розробників тестів для вирішення проблем організації процесу оцінювання в режимі он-лайн. Для досягнення цієї мети ми повинні розкрити сильні та слабкі сторони діяльності електронного оцінювання на основі аналізу практики університетів. Щоб з’ясувати ставлення учнів до проблеми дослідження, ми склали анкету. Результати опитування підтверджують, що електронне оцінювання оцінюється як пріоритетна діяльність учнів завдяки індивідуальному підходу до процесу навчання/навчання, легкодоступному та швидкому зворотньому зв’язку, а також інтерактивним методам впровадження. Переглядаючи практичний досвід Криворізького національного університету (КНУ) та Донецького юридичного інституту Міністерства внутрішніх справ України (DLI) та узагальнюючи статистичні дані опитування, ми розробили методичну підтримку для планування діяльності з електронного оцінювання, яка передбачає: визначення одержувачі та мета тестування; вибрати відповідні інструменти та електронну платформу; вказати форми зворотного зв'язку; уточнити завдання; забезпечують базу знань для роботи з електронними тестами тощо. Незважаючи на велику кількість досліджень у цій галузі, розробники тестів та учасники тестування стикаються з типовими труднощами під час роботи з електронним оцінюванням, і бракує досліджень, що забезпечують методичні практичні прийоми у цій галузі. Для задоволення потреб учнів та викладачів ми розробили методичні рекомендації, які можуть бути використані при складанні тестів електронного оцінювання для студентів різних спеціальностей

CLINICOMORPHOLOGICAL SUBSTANITIATION OF REHABILITATION THERAPY AFTER ECTOPIC PREGNANCY

Purpose: To demonstrate the need of rehabilitation actions for patients, nearly died from aborted tubal pregnancy.Material and Methods: Comparative clinical analysis of two groups of patients (1st and 2nd) after tubectomy due to abortedtubal pregnancy and different blood loss. The blood loss in 1st group did not exceed 500 ml, and in 2nd group (nearly diedpatients - «near miss») - more than 1500 ml. The 3 group was contained of died patients.Results: It was identified a significant causal dependence of pathomorphological changes of anterior pituitary and adrenal glandfrom the blood loss volume, characterizing compensatory mechanism in acute adrenocortical insufficiency, attributable to anyshock, including posthemorrhagic. The data, obtained in the group of maternal deaths, allow to extrapolate the identified changesand suppose the development of these changes for patients, nearly died from major bleeding due to aborted tubal pregnancy.Summary:The presented data of autopsy of characteristic morphological changes of anterior pituitary and adrenal gland,depending on the blood loss volume, determine the direction of rehabilitation for «near of miss» patients

Effect of Trends on Detrended Fluctuation Analysis

Detrended fluctuation analysis (DFA) is a scaling analysis method used to estimate long-range power-law correlation exponents in noisy signals. Many noisy signals in real systems display trends, so that the scaling results obtained from the DFA method become difficult to analyze. We systematically study the effects of three types of trends -- linear, periodic, and power-law trends, and offer examples where these trends are likely to occur in real data. We compare the difference between the scaling results for artificially generated correlated noise and correlated noise with a trend, and study how trends lead to the appearance of crossovers in the scaling behavior. We find that crossovers result from the competition between the scaling of the noise and the ``apparent'' scaling of the trend. We study how the characteristics of these crossovers depend on (i) the slope of the linear trend; (ii) the amplitude and period of the periodic trend; (iii) the amplitude and power of the power-law trend and (iv) the length as well as the correlation properties of the noise. Surprisingly, we find that the crossovers in the scaling of noisy signals with trends also follow scaling laws -- i.e. long-range power-law dependence of the position of the crossover on the parameters of the trends. We show that the DFA result of noise with a trend can be exactly determined by the superposition of the separate results of the DFA on the noise and on the trend, assuming that the noise and the trend are not correlated. If this superposition rule is not followed, this is an indication that the noise and the superimposed trend are not independent, so that removing the trend could lead to changes in the correlation properties of the noise.Comment: 20 pages, 16 figure

Multiple Λ\LambdaCDM cosmology with string landscape features and future singularities

Multiple $\Lambda$CDM cosmology is studied in a way that is formally a classical analog of the Casimir effect. Such cosmology corresponds to a time-dependent dark fluid model or, alternatively, to its scalar field presentation, and it motivated by the string landscape picture. The future evolution of the several dark energy models constructed within the scheme is carefully investigated. It turns out to be almost always possible to choose the parameters in the models so that they match the most recent and accurate astronomical values. To this end, several universes are presented which mimick (multiple) $\Lambda$CDM cosmology but exhibit Little Rip, asymptotically de Sitter, or Type I, II, III, and IV finite-time singularity behavior in the far future, with disintegration of all bound objects in the cases of Big Rip, Little Rip and Pseudo-Rip cosmologies.Comment: LaTeX 11 pages, 10 figure

Research of Microstructure of Molybden Doped Weldings of Oil and Gas Pipelines

Still existing scientific, technical and technological developments to improve the quality of welded joints of metal pipe structures contain contradictions and uncertainty about the effects of alloying elements, such as molybdenum, mechanical and visco plastic properties, as well as metallographic component joints. All this indicates the need for a systematic study of these problems for the development of rational metallurgical and technological measures to significantly improve the technological and corrosion-mechanical properties of weld metal. Metallographic studies, using laboratory equipment with high identifying ability, found that the doping of weld metal with molybdenum in the amount of 0.2-0.4% causes fragmentation of ferrite-pearlite structure, including carbides Mn and Fe, and also reduces the number and size of non-metallic inclusions – sulfides, oxides and silicates. Moreover, non-metallic inclusions have a dispersed appearance, which promotes plasticization of the structure, which directly increases the viscous-plastic characteristics and resistance of the metal joints to crack formation. Based on the results of metallographic research, the optimum content in the weld metal of the alloyed element – molybdenum, which is 0.2-0.4%, is determined

Measurement of the cross-section ratio sigma_{psi(2S)}/sigma_{J/psi(1S)} in deep inelastic exclusive ep scattering at HERA

The exclusive deep inelastic electroproduction of $\psi(2S)$ and $J/\psi(1S)$ at an $ep$ centre-of-mass energy of 317 GeV has been studied with the ZEUS detector at HERA in the kinematic range $2 < Q^2 < 80$ GeV$^2$, $30 < W < 210$ GeV and $|t| < 1$ GeV$^2$, where $Q^2$ is the photon virtuality, $W$ is the photon-proton centre-of-mass energy and $t$ is the squared four-momentum transfer at the proton vertex. The data for $2 < Q^2 < 5$ GeV$^2$ were taken in the HERA I running period and correspond to an integrated luminosity of 114 pb$^{-1}$. The data for $5 < Q^2 < 80$ GeV$^2$ are from both HERA I and HERA II periods and correspond to an integrated luminosity of 468 pb$^{-1}$. The decay modes analysed were $\mu^+\mu^-$ and $J/\psi(1S) \,\pi^+\pi^-$ for the $\psi(2S)$ and $\mu^+\mu^-$ for the $J/\psi(1S)$. The cross-section ratio $\sigma_{\psi(2S)}/\sigma_{J/\psi(1S)}$ has been measured as a function of $Q^2, W$ and $t$. The results are compared to predictions of QCD-inspired models of exclusive vector-meson production.Comment: 24 pages, 8 figure

Combined QCD and electroweak analysis of HERA data

A simultaneous fit of parton distribution functions (PDFs) and electroweak parameters to HERA data on deep inelastic scattering is presented. The input data are the neutral current and charged current inclusive cross sections which were previously used in the QCD analysis leading to the HERAPDF2.0 PDFs. In addition, the polarisation of the electron beam was taken into account for the ZEUS data recorded between 2004 and 2007. Results on the vector and axial-vector couplings of the Z boson to u- and d-type quarks, on the value of the electroweak mixing angle and the mass of the W boson are presented. The values obtained for the electroweak parameters are in agreement with Standard Model predictions.Comment: 32 pages, 10 figures, accepted by Phys. Rev. D. Small corrections from proofing process and small change to Fig. 12 and Table

Limits on the effective quark radius from inclusive epep scattering at HERA

The high-precision HERA data allows searches up to TeV scales for Beyond the Standard Model contributions to electron-quark scattering. Combined measurements of the inclusive deep inelastic cross sections in neutral and charged current $ep$ scattering corresponding to a luminosity of around 1 fb$^{-1}$ have been used in this analysis. A new approach to the beyond the Standard Model analysis of the inclusive $ep$ data is presented; simultaneous fits of parton distribution functions together with contributions of "new physics" processes were performed. Results are presented considering a finite radius of quarks within the quark form-factor model. The resulting 95% C.L. upper limit on the effective quark radius is $0.43\cdot 10^{-16}$ cm.Comment: 10 pages, 4 figures, accepted by Phys. Lett.