CORE 2.1 (COmpendium of RElations, Version 2.1)

The present CORE 2.1 (COmpendium of RElations, Version 2.1) contains various formulas and relations used in the practical calculations in the Standard Model. The properties of the Pauli, Dirac, Gell--Mann matrices, wave functions of free fermions and gauge bosons are considered. We present the full Lagrangian of the Standard Model and the corresponding Feynman rules. The method of the evaluation of the Feynman (loop) integrals and calculations in non-covariant gauges is considered. We discuss in brief the relativistic kinematic and present a large number of the matrix elements of the various processes in the Standard Model.Comment: 108 pages, the full text is submitted as four compressed and uuencoded PostScript file

CORE 3.1 (COmpendium of RElations, Version 3.1)

The present CORE 3.1 (COmpendium of RElations, Version 3.1) contains various formulas and relations used in the practical calculations in the Standard Model. The properties of the Pauli, Dirac, Gell--Mann matrices, wave functions of free fermions and gauge bosons are considered. We present the full Lagrangian of the Standard Model and the corresponding Feynman rules. The method of the evaluation of the Feynman (loop) integrals and calculations in non-covariant gauges is considered. We discuss in brief the relativistic kinematic and present a large number of the matrix elements of the various processes in the Standard Model.Comment: 80 pages, 21 figures, scripts.sty. arXiv admin note: substantial text overlap with arXiv:hep-ph/950745

Probing a Nucleon Spin Structure at TESLA by the Real Polarized Gamma Beam

The recent proposals concerning the usage of the real polarized gamma beam, obtained by the Compton backscattering of the laser photons off the electron beams from either the linear or circular accelerators were considered. The heavy quark photoproduction process giving a unique opportunity to measure polarized gluon distribution was investigated.Comment: 16 pages, LATEX, 6 figures (EPS

Design of Drum Type Apparatus for Processing of Bulk Materials

The article presents the development and research of drum continuous mixers, most attention is paid to the results of theoretical (using of cybernetic approach) and experimental studies of longitudinal mixing particulate material in rotating drums of continuous action, the influence of internal recycles of material flows, intensifying the process of smoothing the input fluctuations. The authors analyzed the influence of internal recycles material flows, intensifying the process of smoothing the input fluctuations. The results presented in this paper were obtained by the experiments on the smoothing ability determination during which they change the frequency of the drum rotation, the location of the Г-shaped mixer blades on the drum mixer. The article reported that the studies were conducted on three mixtures which components have different physical and mechanical systems with various dispersed liquid additives and without it

An integrated approach to assess the complications of deforming osteoarthritis in sports medicine

Objective: prognosis of thromboembolic complications using clinical diagnostic markers.Materials and methods. The study involved 151 patients who underwent total arthroplasty (TA) of large joints of the lower extremities. Blood serum was studied at the patient’s admission to the hospital, after surgery, and at discharge from the hospital. The following parameters were determined: cell-molecular marker vascular endothelial growth factor (VEGF), a genetic study was performed using the “Plasma screen. Plasma factors of the blood clotting system”. The content of VEGF was determined in blood serum using solid-phase enzyme immunoassay. The effectiveness of diagnostics based on sensitivity and specificity analysis was considered by constructing a ROC analysis at different points of separation of the values of the studied indicators.Results. Diagnostic significance of VEGF and the efficiency of determining PAI-1 were determined. In patients with elevated VEGF values (>183.6 pg/ml), PAI-1 gene polymorphism was detected, which reduces the fibrinolytic activity of the blood system and increases the risk of coronary disorders. This is especially important for patients in a hospital with a large number of risk factors for the development of VTEC due to prolonged immobilization of the limb. The study made it possible to determine that with VEGF values up to 183.6 pg/ml, a low probability of thromboembolic complications is predicted, and with values above 183.6 pg/ml — high.Conclusion. The course of DOA in athletes may be complicated by surgical intra-articular interventions of traumatological and orthopedic profile, which does not exclude the development of VTEO, significantly complicating drug therapy and the rehabilitation period. The presented data show that the determination of VEGF, 5G-675 4G polymorphism of the PAI 1 gene in blood serum can be used to assess the risk of venous thromboembolic complications (VTE), contributing to modern informative diagnostics, improving the quality of life of athletes and prolonging their sports career

Исследование биологической активности водорастворимого комплекса C60/поли-N-винилпирролидон

Objectives. The study aimed to investigate the biological activity of the C60/poly-N-vinylpyrrolidone (C60/PVP) complex representing a water-soluble fullerene derivative. In vitro and in vivo techniques were used to analyze the effect of the C60/PVP complex on the activity of lactate dehydrogenase (LDH) and evaluate changes in the biochemical parameters of blood serum when per os administered to mice.Methods. In order to determine the activity of a commercial LDH preparation and study the kinetics of this process, the standard Warburg photometric method was used. To assess the effect of polyvinylpyrrolidone (PVP) and the C60/PVP complex on some biochemical parameters in vivo, a study was conducted on two-month-old male white mongrel mice weighing 20 ± 3 g. Determination of biochemical parameters of blood serum was carried out using a semi-automatic biochemical analyzer according to standard methods.Results. The effect of the C60/PVP complex on LDH activity was studied along with changes in the biochemical parameters of mouse blood serum characterizing carbohydrate metabolism. As well as increasing the glucose and pyruvic acid content, the C60/PVP complex was found to reduce lactate content and LDH activity in blood serum along with in vitro LDH activity according to the type of mixed inhibition.Conclusions. The C60/PVP complex and PVP were shown to exhibit biological activity in vitro and in vivo. The C60/PVP complex, representing a mixed-type LDH inhibitor, was shown to inhibit LDH activity, as well as contributing to a decrease in lactate concentration and an increase in the concentration of pyruvic acid and glucose in blood serum when administered per os to mice. The inhibitory effect of PVP on LDH activity was revealed in both in vivo and in vitro investigations. In vivo, PVP contributes to a decrease in the concentration of lactate in the blood. The less pronounced effect of the C60/PVP complex as compared to PVP alone may be due to the fact that C60 molecules are “hidden” in cavities formed in PVP molecules.Цели. Исследовать биологическую активность водорастворимого производного фуллерена – комплекса C60/поли-N-винилпирролидона (C60/ПВП) – в условиях in vitro и in vivo; изучить влияние комплекса C60/ПВП на активность лактатдегидрогеназы (ЛДГ) в условиях in vitro и in vivo; оценить изменения биохимических показателей сыворотки крови при введении мышам C60/ПВП per os.Методы. Для определения активности коммерческого препарата ЛДГ и исследования кинетики данного процесса был использован фотометрический метод Варбурга с применением стандартной методики. Для оценки влияния поливинилпирролидона (ПВП) и комплекса C60/ПВП на некоторые биохимические показатели in vivo было проведено исследование на двухмесячных самцах белых беспородных мышей весом 20 ± 3 г. Определение биохимических показателей сыворотки крови проводилось с помощью полуавтоматического биохимического анализатора по стандартным методикам. Результаты. Исследовано влияние комплекса C60/ПВП на активность ЛДГ и проведена оценка изменений биохимических показателей сыворотки крови мышей, характеризующих углеводный обмен. Установлено, что комплекс C60/ПВП увеличивает содержание глюкозы и пировиноградной кислоты, снижает содержание лактата и активность ЛДГ в сыворотке крови по сравнению с контролем, а также снижает активность ЛДГ в условиях in vitro по типу смешанного ингибирования.Выводы. Комплексы C60/ПВП и ПВП проявляют биологическую активность в условиях in vitro и in vivo. Установлено, что комплекс C60/ПВП является ингибитором ЛДГ смешанного типа в условиях in vitro, угнетает активность ЛДГ в условиях in vivo, а также способствует снижению концентрации лактата и увеличению концентрации пировиноградной кислоты и глюкозы в сыворотке крови при введении мышам C60/ПВП per os. При этом также выявлено ингибирующее действие и ПВП на активность ЛДГ in vitro и in vitro, причем в условиях in vivo ПВП способствует снижению концентрации лактата в крови. Менее выраженное действие комплекса C60/ПВП по сравнению с ПВП может быть связано с тем, что молекулы C60 «скрыты» в полостях, образованных в молекулах ПВП

Experimental determination of the adhesive characteristics of the “elementary fiber-epoxy matrix” system

The paper considers the method of testing the elementary fiber-polymer matrix system. Results of determining the following adhesive characteristics are provided: apparent and local adhesive strength, start and end in the adhesive destruction of the fiber-matrix joint under study. Basalt fiber and epoxy matrix based on the epoxy resin and amine hardener are considered as the study objects. Influence of the samples geometric characteristics on their adhesive characteristics is established. The paper shows that at the depth of the elementary fiber emersion in the polymer matrix equal to 200 µm, the scatter of all determined adhesive characteristics is significantly reduced

Analytic evaluation of two-loop renormalization constants of enhanced electroweak strength in the Higgs sector of the Standard Model

We calculate renormalization constants Z_H, Z_w, the Higgs and W-boson mass and tadpole counterterms in the on-mass-shell renormalization scheme to two loops in the heavy-Higgs-boson limit m_H >> M_W. Explicit analytic formulae are presented for the two-loop integrals with masses, which are not known in the literature. As an application, the analytic expression for the two-loop leading correction to the fermionic Higgs boson width is obtained.Comment: 8 pages, 3 Postscript figures, uses epsfig.st