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Acta Mathematica Hungarica
Authors: L. Fehér, M. Laczkovich, and G. Tardos
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Abstract  

The migration of HTO from a point source was studied in the soil of the storage of radioactive waste at horizontal distances of 10 to 40 cm from the source between 2 and 4 m depths at 5 different rainfalls, up to 7641/m2. The water movement changed from 0.17 cm/l (at 10 cm) to 0.28 cm/l (at 40 cm distance) when 186 1 was irrigated, while at 764 1 rainfall it was found to be 0.11 cm/l at every distance. The estimated parameters of a three-dimensional migration model constructed to characterize HTO movement revealed that the HTO distribution migrates downwards in a small, about 1 m thick layer with an initial rate of 0.17 cm/l to slow down to about 0.05 cm/l after 50 years. The distribution is spreading horizontally with a constant rate of about 0.08 cm/l.

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Book reviews

Editor: K. T. KISS

Acta Botanica Hungarica
Authors: B. Bolla, L. Lőkös, G. Fehér, T. Pelyhe, and E. Farkas
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Acta Alimentaria
Authors: A. Blázovics, E. Fehér, I. Kocsis, E. Rapavi, E. Székely, L. Váli, and K. Szentmihályi

In general, biologically active polyphenolic compounds have indirect lipid lowering effects, antioxidant properties and they can also eliminate the accumulated toxic metal elements in the liver in cases of hyperlipidemy. Because of all these, we studied the effect of Beiqishen tea on altered lipid metabolisms, redox parameters and on liver metal contents. Although it was expected, there was not any liver protecting activity of the Beiqishen tea extract in the hyperlipidemic rat model, which was proved by biochemical and morphological studies. The reason for our expectation was the significant polyphenol content of Beiqishen tea. Although, the detoxifying activity of tea polyphenols could be observed in hyperlipidemy, at the same time toxic metal element content (As, Mo, Ni, Pb and Cr) of the tea infusion accumulated in the liver in both normo- and hyperlipidemic rats.

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