| 1. |
- Dunham, I, et al.
(författare)
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The DNA sequence of human chromosome 22
- 1999
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 402:6761, s. 489-495
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Tidskriftsartikel (refereegranskat)
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| 2. |
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| 3. |
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| 4. |
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| 5. |
- Huang, J., et al.
(författare)
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Growth of SiC thin films on (100) and (111) silicon by pulsed laser deposition combined with a vacuum annealing process
- 1999
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Ingår i: Materials Research Society Symposium - Proceedings. - San Francisco, CA, USA. ; , s. 207-212
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Konferensbidrag (refereegranskat)abstract
- Crystalline 3C-SiC thin films were successfully grown on (100) and (111) Si substrates by using ArF pulsed laser ablation from a SiC ceramic target combined with a vacuum annealing process. X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) were employed to study the effect of annealing on the structure of thin films deposited at 800°C. It was demonstrated that vacuum annealing could transform the amorphous SiC films into crystalline phase and that the crystallinity was strongly dependent on the annealing temperature. For the samples deposited on (100) and (111) Si, the optimum annealing temperatures were 980 and 920°C, respectively. Scanning electron microscope (SEM) micrographs exhibited different characteristic microstructure for the (100) and (111) Si cases, similar to that observed for the carbonization layer initially formed in chemical vapor deposition of SiC films on Si. This also showed the presence of the epitaxial relationship of 3C-SiC[100]//Si[100] and 3C-SiC[111]//Si[111] in the direction of growth.
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| 6. |
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| 7. |
- Wang, L., et al.
(författare)
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Study of optical characteristics of damage in oxygen-implanted 6H-SiC
- 1999
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Ingår i: Journal of materials science letters. - 0261-8028 .- 1573-4811. ; 18:12, s. 979-982
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Tidskriftsartikel (refereegranskat)abstract
- Oxygen ions, with an energy of 70 keV, and doses ranging from 5×1013 to 5×1015 cm-2, were implanted into 6H SiC. The damage energies were calculated as 0.93-93 eV/atom with the doses respectively. The dielectric function obtained from spectroscopic ellipsometry were quite sensitive to ion irradiation of the surface, while the first order Raman spectroscopy decreased in intensity with increasing O+ ion dose. The damage behavior characterized by optical measurements was in good agreement with characterization by Rutherford backscattering spectrometry and channeling and atomic force microscopy.
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| 9. |
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| 10. |
- Axelson, H, et al.
(författare)
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The amino-terminal phosphorylation sites of C-MYC are frequently mutated in Burkitt's lymphoma lines but not in mouse plasmacytomas and rat immunocytomas
- 1995
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Ingår i: European Journal of Cancer. - : Elsevier BV. - 0959-8049. ; 31A:12, s. 104-2099
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Tidskriftsartikel (refereegranskat)abstract
- We sequenced the region encoding the amino-terminal phosphorylation sites of C-MYC in the Ig/MYC translocation-carrying Burkitt lymphomas (BL), mouse plasmacytomas (MPC) and rat immunocytomas (RIC). Mutations affecting the Thr-58 codon or the immediate flanking region were found in seven of the 10 in vitro propagated BL lines. No mutations were found in any of the eight BL biopsies analysed. Germ-line sequences were also found in six in vivo and five in vitro passaged MPCs and in four in vivo transplanted RICs. These findings indicate that mutations in this region do not represent a general phenomena in Ig/MYC translocation-carrying tumours, but may confer growth advantage on BL cells under continuous in vitro propagation.
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