The Warsaw Stock Exchange in the period 1991–1993. Qualitative problems of its modelling

The paper focuses on the analysis of return on shares quoted on the Warsaw Stock Exchange (WSE) in the period 1991–1993. We found that the WSE specific institutional background resulted in a large variation of return rates, their distributional assymetry and truncations which make hypotheses testing procedures about criteria of investors' choice and the price setting mechanism more complicated.     

Gender Pay Gap in Poland

In this paper we examine the gender pay gap in Poland over 1987–1996, i.e., shortly before and during the transition to market economy. The principle source of data used throughout the paper is the Household Budget Survey conducted by the Polish Central Statistical Office. The study documents three major results. First, the transition to market economy in Poland favored women substantially in terms of relative earnings differentials. The gender pay gap decreased by 10.2 log% points and the position of mean female in male wage distribution went up by 9.9 percentiles over 1987–1996. By 1995, the values of these measures reached the level observed in industrial economies such as the U.K., Austria, Italy or Australia. Second, rising relative skills of women and rising returns to skills explain about half of the fall in the gender pay gap over 1987–1996. Third, the pay gap did not follow a smooth adjustment process. 1989, the year of the first democratic parliamentary elections, which resulted in forming the first non-communist government, saw the most spectacular change, although actual market reforms began one year after. The changes in the early phase of the transition were mostly driven by sudden shifts in relative wages and employment across industries. Afterwards, the pay gap measures stabilized, partly because rising overall wage inequalities offset the advantages of females due to observed skills.     

The influence of ethanol on the level of ketone bodies in hypothermia

Presently available possibilities of macro- and microscopic diagnosis of death from hypothermia are very limited as the changes observed are either weakly specific (ecchymoses in the mucous membrane of the stomach, histological features of haemorrhagic pancreatic necrosis, cardiomyocyte necrosis or decreased content of glycogen in hepatocytes) or represent only local action of low temperatures (frostbites, violet patches in the region of knees and elbows, red livores) and they may not be present in cases of death from cooling at environmental temperature close to zero or higher.The study evaluated the usefulness of acetoacetic acid (Ac-Ac), beta-hydroxybutyric acid (beta-HBA) and acetone determinations in blood, urine and vitreous humour for diagnosis of death from hypothermia. These three substances called ketone bodies, are easily assimilated energetic substrates that get oxidized preferentially before glucose and fatty acids. In hypoglycaemia (also hypothermia-induced one), the tissues dependent on glucose (e.g. the brain) cover most of their energetic needs from oxidation of these compounds.The analysis of 16 cases of death in circumstances suggesting hypothermia (mainly of the alcohol abusers) showed that the degree of ketosis was inversely proportional to the blood ethanol concentration. This relation may result from stimulation of insulin release and a decrease in the release of its antagonists by ethanol, as well as from inhibition of free fatty acid (FFA) beta-oxidation due to increase in the NADH/NAD ratio. So, the antiketonaemic effects of ethanol (together with its influence on the dilatation of the peripheral vessels and inhibition of shivering thermogenesis by muscle relaxation), explain increased sensitivity of intoxicated persons to low temperatures.     

Postmortem examination of transepithelial ion currents in rabbit colon and trachea in relation to temperature of storage and its importance for interlethal reactions

Electrical phenomena resulting from transepithelial ion transport have been a subject of clinical, physiological, pharmacologic and toxicologic studies. These examinations concern mainly electric phenomena in live organisms. The changes of transepithelial ion pathways which take place postmortem have not been yet established. The aim of the study was an attempt to trace variability of electrophysiological parameters related to transepithelial ion transport in specimens of rabbit trachea and colon depending on temperature at which specimens were stored after death. It was observed that postmortem electric phenomena in epithelium of airways and alimentary tract of rabbit occur well-ordered but with slower course in trachea samples and in tissues which were preserved at low temperature after death.     

Extra-Legal Values in Judicial Interpretation of Law: A Model Reasoning and Few Examples

International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - The aim of the paper is to analyze the types of interpretative reasoning determining the content...