Assestment of the optimal quality level of engineering products in Azerbaijan

Some aspects of determining of dynamics of the optimal technological level of quality level engineering products are considered. It is established that the optimal quality level is constantly changing due to the systematic increasing requirements of consumers and continuous improvement processes. The dynamics of the optimal technological level of production quality and nature of the change of various kinds of quality levels is defined. It is specified that the optimum quality level expresses the degree of compliance of product to the specific needs. It is approved that improvement of the quality is reasonable only at the optimum quality level of the product to be achieved under optimum performance

Етнополітична стабільність у етнополітичній системі

Асланов С. А. Етнополітична стабільність у етнополітичній системі / С. А. Асланов // Актуальні проблеми політики зб. наук. пр. / редкол.: С. В. Ківалов (голов. ред.), Л. І. Кормич (заст. голов. ред.), М. А. Польовий (відп. секр.) [та ін.] ; НУ «ОЮА», Південноукр. центр гендер. проблем. – Одеса : Фенікс, 2015. – Вип. 55. – С. 116-123.Позиціоновано етнополітичну систему як комплекс, структуру взаємопов’язаних етнополітичних ролей у етнополітичній сфері буття. Етнополітична система постає і структурується під час взаємодії етнічності з політикою. Беручи участь у політиці, етнічні спільноти конкурують між собою за встановлення певних преференцій, цим самим вносячи дестабілізацію в етнополітичну систему

New Information about the Mingtepa City Monument

This article provides new information about the city monument of Mingtepa, located in the northern part of the Sоgd region. The first information about the city monument of Mingtepa was recorded in the 70-80s of the last century. The conclusions are made on the basis of material artifacts obtained during excavations in the 1980s and last 2014-2017. Also presented the results of a joint Uzbek-French archaeological expedition on the survey of archaeological sites in the northern part of the Central Zarafshan oasis. Opinions about the localization of the city are expressed on the basis of written sources and new archaeological materials. On the basis of archaeological excavations, the classification of ceramic products and their interaction with the culture of neighboring territories are analyzed. Kabudanjakent, the Sogdian rustak located in the northern part of Zarafshan, and its pottery show similarities with the early medieval ceramics of Chach, Ustrushona, South and West Sugd regions, as well as the influence of the "Kaunchi" culture

Chaotic Behavior of the Biharmonic Dynamics System

Motion of a biharmonic system under action of small periodic force and small damped force is studied. The biharmonic oscillator is a physical system acting under a biharmonic force like asin⁡θ+bsin⁡2θ. The article contains biharmonic oscillator analysis, phase space research, and analytic solutions for separatrixes. The biharmonic oscillator performs chaotic motion near separatrixes under small perturbations. Melnikov method gives analytical criterion for heteroclinic chaos in terms of system parameters. A transition from chaotic to regular motion of the biharmonic oscillator was found as the heteroclinic chaos can be removed by increasing the coefficient of a damping force. The analytical results obtained using Melnikov method have been confirmed by a good match with numeric research

A Spectroscopic Study of Field and Runaway OB Stars

Identifying binaries among runaway O- and B-type stars offers valuable insight into the evolution of open clusters and close binary stars. Here we present a spectroscopic investigation of 12 known or suspected binaries among field and runaway OB stars. We find new orbital solutions for five single-lined spectroscopic binaries (HD 1976, HD 14633, HD 15137, HD 37737, and HD 52533), and we classify two stars thought to be binaries (HD 30614 and HD 188001) as single stars. In addition, we reinvestigate their runaway status using our new radial velocity data with the UCAC2 proper motion catalogs. Seven stars in our study appear to have been ejected from their birthplaces, and at least three of these runaways are spectroscopic binaries and are of great interest for future study.Comment: 21 pages, 1 figure, 7 tables; Accepted to Ap

THE CONTENT OF STEROID HORMONES IN PATIENTS WITH CHOLELITHIASIS, DEPENDING ON THE DISEASE

Here, in this work, the peculiarities of secretion of steroid hormones have been researched in patients with gallstone disease depending on the course of the disease. It is suggested, that the lack of use of cholesterol for steroidogenesis leads to its precipitation in the composition of gallstones, increased cortisol is a limiting factor in inflammatory processes in the gall bladder. The increasing of testosterone synthesis may be considered as an antagonistic component of glucocorticoid regulation of lipid and protein metabolism

Trigonal-bipyramidal Anion [Ph2Cl3Sn]- in the Structure of N-[(Diethylphosphoryl)methyl] piperidinium Diphenyltrichlorostannate(IV)

Crystal structure of N-(diethylphosphoryl)methyl-piperidinium diphenyltrichlorostannate(IV), C10H23NO3P+ C12H10Cl3Sn- has been determined, a = 11.416(2), b = 11.582(2), c = 12.491(2) Å, α = 69.82(2), β = 81.22(2), γ = 60.73(2)°, space group P1̅, 4493 reflections, R(F) = 0.0271, wR(F2) = 0.0712. The structure consists of isolated trigonal-bipyramidal anions and hydrogen-bonded dimers formed by cations. The impact of secondary Sn⋅⋅⋅Cl interactions on the geometry of complex anions is discussed

8-Hydr­oxy-8-phenyl-2,3,7,8-tetra­hydro-6H-1,4-dioxino[2,3-f]isoindol-6-one

In the title compound, C16H13NO4, the indole system is essentially planar, whereas the dioxane ring adopts a twist conformation. The mol­ecules are linked into chains by —O— H⋯O=C— hydrogen bonds and these chains are linked into rods by means of N—H⋯O hydrogen bonds. Exept for weak C—H⋯O inter­actions between the rods, no other inter­molecular contacts of inter­est are present