The Relationship Between the Surface Morphology and Chemical Composition of Gunshot Residue Particles

In this study, chemical composition and morphology of gunshot residue (GSR) of 9 × 19 mm Parabellum‐type MKE (Turkey)‐brand ammunition were analyzed by scanning electron microscope and energy dispersive X‐ray spectrometer. GSR samples were collected by “swab” technique from the shooter's right hand immediately after shooting. According to general principles of thermodynamics, it is likely that the structures will have a more regular (homogeneous) spherical form to minimize their surface area due to very high temperatures and pressures that occur during explosion. Studied samples were collected under the same conditions with the same original ammunition, from the same firearm and a single shooter. This is because many other variables may affect size, structure, and composition in addition to the concentrations of elements of the structure. Results indicated that the chemical compositions are effective in the formation of GSR morphological structures.     

The appraisal remedy and merger premiums

The appraisal remedy affords corporate shareholders the optionto redeem their shares for cash in the event of certain transactions,including mergers. Access to appraisal for publicly traded shares,however, differs from state to state. We present the first large-sampleempirical study of the effect of appraisal rights on targetshareholder gains from acquisitions. We examine 1,350 mergersinvolving publicly held firms. We find some evidence that appraisalreduces average shareholder gains in transactions involvingself-interested managers. For the entire sample, however, wefind no evidence that appraisal has any effect, positive ornegative, on target shareholder gains from takeovers.     

Analysis of mortality caused by ischemic heart disease in Astrakhan from 1983 to 1997

Mortality caused by coronary disease is analyzed for Astrakhan for the period of 1983-1997 (total, non-hospital and hospital mortality). The distribution of mortality by the years and months of the year, sex, age, and cause of death structure is analyzed as exemplified by 6505 deaths.     

The influence of certain meteorological factors on mortality from complications of arterial hypertension

The weather may influence the clinical course of many diseases. The objective of the present study was to evaluate effects of certain meteorological factors on the mortality rate associated with complications of arterial hypertension (cerebral stroke and myocardial infarction) in the city of Astrakhan during the period from 1983 to 2005. The analysis included 17,198 cases of death from cardiovascular disorders (CVD). An original software program was used for the purpose that made it possible to estimate the influence of meteorological factors (air temperature, velocity of wind and precipitation) on the mortality rate among subjects with and without AH. It was shown that mortality due to coronary heart disease (CHD) and cerebrovascular disease positively correlated with the air temperature and amount of precipitation but inversely correlated with the velocity of wind. Correlations between mortality from CVD and meteorological factors among subjects presenting with CHD, cerebrovascular disease, and AH were more pronounced and statistically significant compared with patients of the same groups without AH.