Effects of Eugenol and MS-222 Anaesthesia on Siberian Sturgeon Acipenser baerii Brandt

The aim of the present study was to assess changes induced in the organism of Siberian sturgeon (Acipenser baerii) by eugenol and MS-222 anaesthesia on the basis of haematological indices, biochemical blood profile values and histological examinations. The haematological and biochemical indices were assessed in fish immediately and 24 h after anaesthesia. The results showed that despite no mortality occurred after anaesthesia in both 125 mg l-1 of MS-222 and 0.075 ml l-1 of eugenol, these chemical substances severely influenced the constituents of Siberian sturgeon blood and resulted in some histological changes in the gills and liver. Both eugenol and MS-222 anaesthesia caused erythrocyte swelling and haemolysis. The severe depletion of leukocyte number occurred 24 h after both eugenol and MS-222 anaesthesia (mainly due to depletion of lymphocyte, neutrophil segments and eosinophil fractions). Total protein, total globulin, triacylglycerol concentration and alanine aminotransferase activity in blood plasma was significantly elevated (p 2+, inorganic phosphate, NH3 and alkaline phosphatase activity were significantly decreased (p -1) and eugenol (0.075 ml l-1) does not cause irreversible damage in Siberian sturgeon

The short- and medium-term impacts of the recession on the UK income distribution

We study the short- and medium-term impacts of the recent recession on the distribution of net household income in the UK. We document trends in the distribution of income during and immediately after the economy's 6.3 per cent contraction between 2008Q1 and 2009Q2. We then use a tax and benefit microsimulation model combined with macroeconomic and demographic forecasts to project the distribution of income up to 2015-16. As in other countries, immediate impacts of the recession on net household incomes are remarkably hard to detect, but the pain was merely delayed until 2010-11 and beyond. We find that the major difference between income groups is in the timing of the reductions in income, rather than in their magnitude. For those in the middle and upper parts of the distribution, dependent mainly on labour market income, falls in real income happened largely between 2009-10 and 2011-12. For those towards the bottom, dependent more on benefit incomes, falls in real income will happen largely as a result of the post-recession fiscal tightening between 2010-11 and 2015-16. We explore the sensitivity of the results to different scenarios for employment and earnings: the central and qualitative conclusions prove robust. © 2013 Institute for Fiscal Studies

Life cycle of the centrally planned economy: Why Soviet growth rates peaked in the 1950s

The highest rates of growth of labor productivity in the Soviet Union were observed not in the 1930s (3% annually), but in the 1950s (6%). The TFP growth rates by decades increased from 0.6% annually in the 1930s to 2.8% in the 1950s and then fell monotonously becoming negative in the 1980s. The decade of 1950s was thus the “golden period” of Soviet economic growth. The patterns of Soviet growth of the 1950s in terms of growth accounting were very similar to the Japanese growth of the 1950s-70s and to Korean and Taiwanese growth in the 1960-80s – fast increases in labor productivity counterweighted the decline in capital productivity, so that the TFP increased markedly. However, high Soviet economic growth lasted only for a decade, whereas in East Asia it continued for three to four decades, propelling Japan, South Korea and Taiwan into the ranks of developed countries. This paper offers an explanation for the inverted U-shaped trajectory of labor productivity and TFP in centrally planned economies (CPEs). It is argued that CPEs under-invested into the replacement of the retiring elements of the fixed capital stock and over-invested into the expansion of production capacities. The task of renovating physical capital contradicted the short-run goal of fulfilling plan targets, and therefore Soviet planners preferred to invest in new capacities instead of upgrading the old ones. Hence, after the massive investment of the 1930s in the USSR, the highest productivity was achieved after the period equal to the average service life of fixed capital stock (about 20 years) – before there emerged a need for the massive investment into replacing retirement. Afterwards, the capital stock started to age rapidly reducing sharply capital productivity and lowering labor productivity and TFP growth rates