Scanning electron microscopy: application in the identification of diatoms in cases of drowning.

A simple and rapid method is described for processing organ and water samples for the identification of diatoms so that they can be studied and recorded for taxonomic and diagnostic purposes. Samples are treated with concentrated nitric acid; the fluid obtained is centrifuged, and its sediment is dried, coated, and examined under the scanning electron microscope. The method does not alter the morphology of diatoms and allows the study of freshwater and seawater species present in the organs of bodies found in the water, making possible the diagnosis of drowning under specific conditions.     

Book reviews

Transborder Data Flows (Proceedings of an OECD Conference) Edited by Hans‐Peter Gassmann North Holland (Elsevier Science Publishers) 1985, US$74.00

Plastic and Electronic Money: New Payment Systems and Their Implications Patrick Frazer Woodhead Faulkner Limited 1985 £35

A User's Guide To Computer Contracting: Forms, Techniques and Strategies Davis, Allen, Bowman and Armstrong Harcourt Brace Jovanovich 1985, $75

Legal Protection of Computer Programs and Data C. Millard Sweet & Maxwell/Stevens 1985, £24

Piracy of Phonograms Gillian Davies ESC Publishing Ltd. 1986. 2nd edition. £17.95.

Biotechnology and Patent Protection—An International Review F. K. Beier, R. S. Crespi and J. Straus O.E.C.D. 1985, £5

Protecting Privacy in Two‐Way Electronic Services David H. Flaherty Mansell Publishing Company 1985, £23.50

High‐Tech Espionage Jay Tuck Sidgwick and Jackson Ltd 1980, £10.95     

The range and limitation of sub-national regime variations under electoral authoritarianism: The case of Russia

ABSTRACT

As has been demonstrated by scholars, different levels of a polity may encompass different political regimes. In this study we examine variations in regional political regimes which have developed under Russia's system of electoral authoritarianism. Comparing the results of two cycles of regional assembly elections (2008–12 and 2013–17) we analyse and compare elections results and levels of electoral contestation in both the party list (PL) and single member district (SMD) contests. This allows us to identify the range of sub-national regime variations: ‘hegemonic authoritarian’, ‘inter-elite bargain authoritarian’, ‘clearly-competitive authoritarian’, and ‘moderately-competitive authoritarian’ regions. Approximately half of the regions demonstrate stable electoral patterns across both cycles. At the same time, none of the regions go beyond the authoritarian limitations imposed by the Russian regime. The variation is explained by a combination of structural and agency factors with a prevalence of the latter.