Application of nonuniform sampling in time-domain dielectric spectroscopy

Translated from Izmeritel'naya Tekhnika, No. 8, pp. 58–61, August, 1992.     

Influence of certain media on properties of polycaprolactam

The kinetics of absorption of working media (water, benzene, kerosene) and the variation in the elasticity modulus in relation to the degree of absorption and degree of crystallinity of polycaprolactam were studied. It was shown that water produces a considerable reduction in the elasticity modulus of caprone, the effect becoming more pronounced with decreasing degree of crystallinity. In time the elasticity modulus becomes stable even though water continues to be absorbed. Benzine and kerosene appear to be inert with respect to caprone.     

Approximate analysis of the steady-state temperature field of a parallelepiped with a local energy source

There is an approximate analysis of the steady-state temperature field of a parallelepiped on one of whose faces there is a local energy source. A practical calculation scheme is proposed, and its accuracy is evaluated.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 28, No. 4, pp. 685–693, April, 1975.     

Thermal resistance of a system of parallelepipeds

A method is proposed for calculating the thermal resistance of a system of parallelepipeds with a local source which is encountered in the analysis of the thermal conditions in hybrid integral microcircuits.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 30, No. 5, pp. 876–883, May, 1976.     

Time domain dielectric spectroscopy study of biological systems

The main principles of time domain dielectric spectroscopy, its application to conductive systems and possible methods of electrode polarization corrections in time domain are introduced. A comprehensive theoretical and experimental study of static and dynamic dielectric properties of different biological systems including globular, and membrane proteins, hydrate water, human erythrocytes, and normal and malignant blood cells of different types is presented in the paper.     

Active Ageing Index as an Evidence Base for Developing a Comprehensive Active Ageing Policy in Russia

The concept of active ageing shifts the focus of the discussion of the consequences of ageing from negative expectations of a growing burden of public costs to the analysis of opportunities of using the potential of elderly people. This paper is aimed at testing the applicability of international approaches to measure active ageing to the situation in Russia. For this purpose, we use the international Active Ageing Index (AAI), developed by the experts from the European Centre Vienna. The AAI is a multidimensional composite index that consists of 22 indicators and measures the untapped potential of older people in four major areas: (1) employment, (2) participation in society, (3) independent, healthy and secure life, (4) capacity for active ageing. Our empirical estimation of the AAI is based on several Russian and international surveys, which provide relatively high comparability of the AAI results for Russia with EU countries. The results show that the AAI equals 30.9 points, which means about 69 % of unused potential for active ageing of the elderly in Russia, and corresponds to the 18th place in ranking of 29 European countries. Russia performs relatively better in the employment and capacity for active ageing domains. It is in the bottom of the ranking in the independent, healthy and secure life domain.     

Analysis of error sources in time-domain dielectric spectroscopy

Translated from Izmeritel'naya Tekhnika, No. 8, pp. 61–63, August, 1992.     

Road traffic fatalities in Arkhangelsk,Russia in 2005–2010: Reliability of police and healthcare data

Purpose

To estimate and compare reliability of traffic mortality data of the police and the healthcare sector in Arkhangelsk, Russia.

Methods

The study matched traffic mortality data of the police and the regional healthcare statistics centre for the period from 2005 to 2010. Individual investigations of unmatched cases were performed, and the underlying causes of the non-matches were established. The obtained distribution of non-matches by causes served as basis for estimating the true numbers of traffic fatalities in the two sources, in appliance with corresponding fatality definitions and registration rules. A data accuracy index (DAI) was calculated for each source by using an adapted version of the formula for calculating accuracy of a diagnostic test. This was used as a measure for data reliability. Time trends in annual DAIs were estimated for each source by χ²-test for linear trend.

Results

During the 6-year period, the police and the healthcare statistics centre registered 217 and 237 traffic fatalities in Arkhangelsk, respectively. Matching of data from the two sources resulted in 162 matched cases, 55 unmatched cases in the police data, and 75 unmatched cases in the healthcare data. More than a half (56%) of the non-matches were attributed to incompatibility of the definitions in the two data registration systems; 39% were attributed to failures in the healthcare data. Other non-matches were due to scarce identifying information (2%) or were not classifiable (2%). None of the non-matches were clearly attributable to failures in the police data. The 6-year DAI was 98% for the police data and 80% for the healthcare data. The DAI for the police data was stable over 2005–2010 (ranging from 96% to 100%). The DAI for the healthcare data increased from 66% in 2005 to 98% in 2010 (P_trend < 0.001).

Conclusion

The findings suggest that traffic mortality data of the police were more reliable, compared to the healthcare data. However, reliability of the healthcare data was improving during the study period.