This work is a study of the influence of shell effects on the formation of binary fragments in damped collision. We have investigated binary reaction channels of the composite system with Z = 108 produced in the reaction 88 Sr+ 176 Yb at an energy slightly above the Bass barrier (E c.m. /E Bass = 1.03). Reaction products were detected by using the two-arm time-of-flight spectrometer CORSET at the K130 cyclotron of the Department of Physics, University of Jyväskylä. The mass-energy distribution of primary binary fragments has been measured. For targetlike fragments heavier than 190 u, which correspond to a mass transfer as large as twenty nucleons or more, an enhancement of the yields is observed. This striking result can be ascribed to the proton shells at Z = 28 and 82 and implies the persistence of the shell effects in the formation of reaction fragments even for large mass transfers.

Raman spectroscopy method is applied for analysis of ischemia damaging action on serum. The registered changes of low-density lipoprotein (LDL) after brain ischemia (size increasing, density reducing) are explained in frameworks of free radical theory of oxidative stress. We confirmed by Raman spectroscopy method our hypothesis, according to which the increase in LDL size and decrease of LDL density after an ischemia, in contrast to LDL of healthy animals, is caused by loosing of LDL phospholipid monolayer under damaging action of free radicals. The obtained results show the possibility of using of Raman spectroscopy method for an estimation of ischemic damages. Averaged Raman spectrum of blood serum of healthy animals and animals after ischemia

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