RISS 검색 - 국내학술지논문

무료
기관 내 무료
유료

내보내기
내책장담기
한글로보기

정확도순

내림차순

내림차순

10개씩 출력

1
A preliminary study of T-2 and HT-2 toxins in cereals sold in traditional market in South Korea

Kassim, N.,Kim, K.,Mtenga, A.B.,Song, J.E.,Liu, Q.,Shim, W.B.,Chung, D.H. Butterworths ; Taylor Francis ; Elsevier Science 2011 FOOD CONTROL Vol.22 No.8
- 원문보기
Fusarium species are responsible for the production of harmful trichothecenes mycotoxins in cereals. These mycotoxins are cytotoxic, potentially immunosuppressive and potent fast-acting inhibitors of protein and nucleic acid synthesis. This study validated a HPLC method for simultaneous detection of T-2 and HT-2 toxins. The method was then used for the detection of T-2 and HT-2 toxins in cereals sold in traditional markets in Gyeongnam Province, South Korea. Seventy five samples analyzed, out of which 13 and 25 samples were found to be contaminated with T-2 (35.2-431.0 ng g<SUP>-1</SUP>) and HT-2 (21.1-442.7 ng g<SUP>-1</SUP>) toxins, respectively and 4 samples were found to be contaminated with both toxins. This study provides data on the contamination level of T-2 and HT-2 toxins in cereals in traditional market in Gyeongnam province, South Korea.
2
PROPERTIES AND SPECTRAL BEHAVIOUR OF CLUSTER RADIO HALOS

L. FERETTI,G. BRUNETTI,G. GIOVANNINI,N. KASSIM,E. ORRU,G. SETTI 한국천문학회 2004 Journal of The Korean Astronomical Society Vol.37 No.5
- 원문보기 2
  ScienceON
  
  코리아스칼라
Several arguments have been presented in the literature to support the connection between radiohalos and cluster mergers. The spectral index distributions of the halos in A665 and A2163 provide anew strong conrmation of this connection, i.e. of the fact that the cluster merger plays an importantrole in the energy supply to the radio halos. Features of the spectral index (attening and patches)are indication of a complex shape of the radiating electron spectrum, and are therefore in support ofelectron reacceleration models. Regions of atter spectrum are found to be related to the recent merger.In the undisturbed cluster regions, instead, the spectrum steepens with the distance from the clustercenter. The plot of the integrated spectral index of a sample of halos versus the cluster temperatureindicates that clusters at higher temperature tend to host halos with atter spectra. This correlationprovides further evidence of the connection between radio emission and cluster mergers.