• Proceedings of the Zoological Society Korea Conference
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• 1999.10b
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• pp.67.1-67
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• 1999

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 1999.10b
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• pp.67.2-67
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• 1999

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 2000.04a
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• pp.86.1-86
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• 2000

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 2000.10a
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• pp.246.1-246
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• 2000

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 2000.10a
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• pp.274.1-274
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• 2000

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 2001.04a
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• pp.65.1-65
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• 2001

No Abstract, See Full Text

• Korean Journal of Environmental Biology
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• v.18 no.2
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• pp.247-253
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• 2000

In order to investigate the stimulatory effect(hormesis) of low dose gamma-radiation on the seeding growth of old seeds with respect to antioxidant defense systems, various doses of gamma radiation to the 5-year-old dried seeds of Chinese cabbage (Brassica campestris L. cv Sulin eockaei). Compared to the new, 1-year- old seeds, old seeds irradiated by low does gamma radiation in the range of 1-2 Gy showed vigor growth as revealed by statistically significant increases both in the germination rates and the leaf size and fresh weight. Further, seedlings grown from seeds treated by low dose gamma radiation showed higher peroxidase and catalase activities than non-treated seedlings. These results suggest that the antioxidant defense systems could be closely related to the stimulatory effects of low dose radiation. [antioxidant enzyme, chinese cabbage, gamma radiation, germination rate, hormesis]

• Korean Journal of Environmental Biology
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• v.31 no.4
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• pp.302-307
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• 2013

Microbial fermented cellulose gel, citrus gel (CG), was successfully fabricated to porous foam by radiation treatment and freeze drying. The chemically induced radiation was used to create highly porous foam and further freeze drying of the CG produced tough foams with interconnected open pores for use in tissue engineering. The microstructure of the CG foam was controlled by varying the irradiation dose and quenching temperature with pore size ranging from several microns to a few hundred microns. Tensile strength and Gurley value of the CG foam were influenced by irradiation dose. These radiation induced CG foams are promising scaffolds for tissue engineering.

• Proceedings of the Zoological Society Korea Conference
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• 2003.08a
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• pp.196.3-196
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• 2003

No Abstract, See Full Text

• Genomics & Informatics
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• v.8 no.1
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• pp.28-33
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• 2010

Increased exposure of human to RF fields has raised concerns for its potential adverse effects on our health. To address the biological effects of RF radiation, we used genome wide gene expression as the indicator. We exposed normal WI-38 human fibroblast cells to 1763 MHz mobile phone RF radiation at a specific absorption rate (SAR) of 60 W/kg with an operating cooling system for 24 h. There were no alterations in cell numbers or morphology after RF exposure. Through microarray analysis, we identified no differentially expressed genes (DEGs) at the 0.05 significance level after controlling for multiple testing errors with the Benjaminiochberg false discovery rate (BH FDR) method. Meanwhile, 82 genes were differentially expressed between RF-exposed cells and controls when the significance level was set at 0.01 without correction for multiple comparisons. We found that 24 genes (0.08% of the total genes examined) were changed by more than 1.5-fold on RF exposure. However, significant enrichment of any gene set or pathway was not observed from the functional annotation analysis. From these results, we did not find any evidence that non-thermal RF radiation at a 60-W/kg SAR significantly affects cell proliferation or gene expression in WI-38 cells.