Vibrational dynamic system for the reduction of solid materials

A vibrational dynamic system is considered, designed for effective reduction of solid materials. Two system arrangements are presented. Using the results of the theory of synchronization of mechanical vibrators, formulas are obtained for assessing the steadiness and stability of self-synchronization of the unbalanced vibrators in the vibrational systems under consideration. The calculation results for the formulas obtained enable the selection of the most efficient and reliable structural arrangement for the vibrational dynamic system

Structure of 2-Methyl-5,6,7-triphenyl-6,7-dihydropyrazolo[2,3-\u3cem\u3ea\u3c/em\u3e]pyrimidine

C25H21N3, Mr = 363.46, monoclinic, P21/n, a = 9.245 (2), b = 23.502 (5), c = 9.340 (2) Å, β= 103.50(3)°, V=1973.3(2) Å3, Z=4, Dx= 1.220 (2) g cm-3, λ (Mo Kα )= 0.71069 Å, μ = 0.068 cm-1, F(000) = 768, T= 292 K, R = 0.091 for 1442 unique observed reflections. The dihydropyrimidine ring adopts a distorted sofa conformation. The aryl substituents on the saturated C atoms have an axial orientation

Structure of 5-nitro-2-tosylaminobenzaldehyde di(morpholin-4-yl)aminal Complex with Carbon Tetrachloride

The 5-nitro-2-tosylaminobenzaldehyde di(morpholin-4-yl)aminal forms a stable complex with carbon tetrachloride in the crystal phase. X-ray structural study of this complex indicates an essentially shortened intermolecular contact of 2.89 Å between the oxygen atom of the nitro group and one of the chlorine atom of the CCI4 molecule. Quantum-chemical calculations by semiempirical AMI method showed that the formation of such complex did not cause considerable decrease of system energy or change of charge distribution in molecules. It was supposed that this associate has van der Waals character

Health and health systems in the Commonwealth of Independent States.

The countries of the Commonwealth of Independent States differ substantially in their post-Soviet economic development but face many of the same challenges to health and health systems. Life expectancies dropped steeply in the 1990s, and several countries have yet to recover the levels noted before the dissolution of the Soviet Union. Cardiovascular disease is a much bigger killer in the Commonwealth of Independent States than in western Europe because of hazardous alcohol consumption and high smoking rates in men, the breakdown of social safety nets, rising social inequality, and inadequate health services. These former Soviet countries have embarked on reforms to their health systems, often aiming to strengthen primary care, scale back hospital capacities, reform mechanisms for paying providers and pooling funds, and address the overall shortage of public funding for health. However, major challenges remain, such as frequent private out-of-pocket payments for health care and underdeveloped systems for improvement of quality of care

2,3,4,6,7,8,9,10-Octa­hydro­pyrimido[1,2-a]azepin-1-ium 2-cyano-1-(2,6-dimethylanilino)-2-(phenyl­sulfonyl)ethenethiol­ate

In the title compound, C9H17N2 +·C17H15N2O2S2 −, the Csp 2—N bonds in the tetra­hydro­pyrimidine ring of the cation are delocalized. The negative charge is localized on the S atom of the thione group. Cations and anions are linked by N—H⋯S inter­molecular hydrogen bonds

Understanding the role of physicians within the managerial structure of Russian hospitals.

This article examines the role of physicians within the managerial structure of Russian hospitals. A comparative qualitative methodology with a structured assessment framework is used to conduct case studies that allow for international comparison. The research is exploratory in nature and comprises 63 individual interviews and 49 focus groups with key informants in 15 hospitals, complemented by document analysis. The material was collected between February and April 2017 in five different regions of the Russian Federation. The results reveal three major problems of hospital management in the Russian Federation. First, hospitals exhibit a leaky system of coordination with a lack of structures for horizontal exchange of information within the hospitals (meso-level). Second, at the macro-level, the governance system includes implementation gaps, lacking mechanisms for coordination between hospitals that may reinforce existing inequalities in service provision. Third, there is little evidence of a learning culture, and consequently, a risk that the same mistakes could be made repeatedly. We argue for a new approach to governing hospitals that can guide implementation of structures and processes that allow systematic and coherent coordination within and among Russian hospitals, based on modern approaches to accountability and organisational learning