Synthesis of 2-(bis(cyanomethyl)amino)-2-oxoethyl methacrylate monomer molecule and its characterization by experimental and theoretical methods

2018 ◽  
Vol 1161 ◽  
pp. 433-441 ◽  
Author(s):  
E.B. Sas ◽  
N. Cankaya ◽  
M. Kurt
Author(s):  
Надія Подоляка

The purpose of the article is to investigate the peculiarities of the national Ukrainian culture in the artistic design of the editions of the Kharkov cooperative publishing house «Rukh». Research methods: Empirical-theoretical methods of analysis, synthesis, deduction are used. From the theoretical methods, a description and interpretation is applied. The use of these methods made it possible to prove that the publications of the Kharkov cooperative publishing house «Rukh» are a highly cultured artistic product, shrouded in the aura of the traditions of Ukrainian culture. It is proved that in the 20-ies. XX century. around the «Rukh» united a circle of like-minded writers, critics, editors, illustrators. Book covers were made by M. Samokish, S. Borovoy, V. Krichevsky. It is established that in the graphic design of the editions the editors used font ensembles, decorative elements and other visual materials created by the most prominent representatives of the artistic circles, in which the Ukrainian tradition is traced. In the design of covers used a variety of frames, ornaments of vegetable origin, stylized with letters. At the same time, minimalism of forms, compositions in a black and white version was quite common. Attention is focused on the works of the famous graphs of the era of the Ukrainian revival, created by the order of the Kharkiv cooperative publishing house «Rukh». The features of the national Ukrainian culture in the artistic design of publications are analyzed. Illustrations, graphic elements, style of execution and technique of the Ukrainian artists cooperating with the publishing house are characterized. The study significantly expands the view on publishing at the stage of the formation of Soviet power. The results can be used to write textbooks and teaching aids on cultural studies, the history of publishing and the history of Ukraine.


2008 ◽  
Vol 59 (10) ◽  
Author(s):  
Paul Ionut Dron ◽  
Neculai Doru Miron ◽  
Gheorghe Surpateanu

The paper presents the synthesis of cyclo (bis-paraquat p-phenylene p-phenylene-carbonyl) tetrakis (hexafluorophosphate), named �CETOBOX�, and the closely related structural determinations. This compound exists in three tautomeric forms. These forms were evidentiated by NMR-data (1H-NMR, TOCSY, COSY, NOESY), UV-Vis spectra coupled with pH measurements and by synthesis. As the �CETOBOX� gives �in situ� only the corresponding monoylide, the synthesis of a new fluorescent indolizine cyclophane has been performed by a 3+2 cycloaddition. All structures of the new compounds presented herein have been established by NMR spectroscopy. Also, theoretical methods (MM3, AM1, AM1-COSMO and B88LYPDFT) have been used to determine the most stable conformer structures.


Author(s):  
M.A. Dolova ◽  
◽  
R.I. Yagudina ◽  
N.I. Gavrilina ◽  
◽  
...  

Currently, the increase in the efficiency of pharmacy organizations is due to the efficiency of team management. Each pharmacy organization strives to strengthen the workforce and monitors staff turnover rates, because this can affect the economic results of the organization. The most effective tool for preventing the layoff of staff turnover. This article presents the results of a sociological study of the factors that lead pharmaceutical workers to change jobs. The objects of the study were pharmaceutical workers of pharmaceutical organizations of various organizational and legal forms in Moscow. The methodological basis of the research was formed by general theoretical methods of information processing: analysis, systematization, grouping, comparison and generalization. Based on the analysis of 214 questionnaires of pharmaceutical workers, the frequency of job changes was revealed, and this indicator wa s studied depending on the length of service. It was found that pharmaceutical workers with higher education are more committed to the pharmaceutical industry, but at the same time, one in three of them expressed a desire to change jobs while remaining in the profession. The analysis of value-oriented factors made it possible to identify the main reasons leading pharmaceutical workers to change jobs.


Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4139
Author(s):  
Barbora Vénosová ◽  
Ingrid Jelemenská ◽  
Jozef Kožíšek ◽  
Peter Rapta ◽  
Michal Zalibera ◽  
...  

Two 15-membered octaazamacrocyclic nickel(II) complexes are investigated by theoretical methods to shed light on their affinity forwards binding and reducing CO2. In the first complex 1[NiIIL]0, the octaazamacrocyclic ligand is grossly unsaturated (π-conjugated), while in the second 1[NiIILH]2+ one, the macrocycle is saturated with hydrogens. One and two-electron reductions are described using Mulliken population analysis, quantum theory of atoms in molecules, localized orbitals, and domain averaged fermi holes, including the characterization of the Ni-CCO2 bond and the oxidation state of the central Ni atom. It was found that in the [NiLH] complex, the central atom is reduced to Ni0 and/or NiI and is thus able to bind CO2 via a single σ bond. In addition, the two-electron reduced 3[NiL]2− species also shows an affinity forwards CO2.


Fluids ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 73
Author(s):  
Fang-Bao Tian ◽  
Li Wang

Due to rising human infertility, sperm motility has been an important subject. Among the hundreds of millions of sperms on the journey up the oviducts, only a few excellent travelers will reach the eggs. This journey is affected by many factors, some of which include sperm quality, sperm density, fluid rheology and chemotaxis. In addition, the sperm swimming through different body tracks and fluids involves complex sperm flagellar, complex fluid environment, and multi-sperm and sperm-wall interactions. Therefore, this topic has generated substantial research interest. In this paper, we present a review of computational studies on sperm swimming from an engineering perspective with focus on both simplified theoretical methods and fluid–structure interaction methods. Several open issues in this field are highlighted.


1984 ◽  
Vol 7 (3) ◽  
pp. 359-365
Author(s):  
Dymiter Skordev

The paper presents an abstract tool for describing general properties of programs. Iterative combinatory space approach makes possible to transfer recursion – theoretical methods onto logical system which is constructed in this paper.


Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2872
Author(s):  
Seyed Mohamad Reza Paran ◽  
Ghasem Naderi ◽  
Elnaz Movahedifar ◽  
Maryam Jouyandeh ◽  
Krzysztof Formela ◽  
...  

The effect of several concentrations of carboxylated nitrile butadiene rubber (XNBR) functionalized halloysite nanotubes (XHNTs) on the vulcanization and degradation kinetics of XNBR/epoxy compounds were evaluated using experimental and theoretical methods. The isothermal vulcanization kinetics were studied at various temperatures by rheometry and differential scanning calorimetry (DSC). The results obtained indicated that the nth order model could not accurately predict the curing performance. However, the autocatalytic approach can be used to estimate the vulcanization reaction mechanism of XNBR/epoxy/XHNTs nanocomposites. The kinetic parameters related to the degradation of XNBR/epoxy/XHNTs nanocomposites were also assessed using thermogravimetric analysis (TGA). TGA measurements suggested that the grafted nanotubes strongly enhanced the thermal stability of the nanocomposite.


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