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The international road of Chinese medicine can be comparable to the Long March of the Red Army. The article reviews the history, global impact and achievements of the World Congress of Chinese Medicine (WCCM) on its way to the TCM's globalization in the past decade. It also discusses the great significance of WCCM's effort. The article concludes by bringing up a scheme for further developing the WCCM and envisioning its promising future.
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In this paper, based on the phonon-exciton mechanism, the superconductivity of yttrium barium copper oxide (YBCO) system is explained. The transition temperature (TC)'s formula is derived by the extended BCS-Eliashberg theory, i. e. phonon-exciton mechanism and McMillan's energy gap function, and the TC's expressions is reduced by using the Einstein spectrum. Last, the calculating method of element metal effective phonon spectrum is used to the high TC cuprate YBCO system by using a crystal average atom approximation model. The theoretical analysis and calculational results show that the superconductivity of high TC YBCO system maybe described by phonon-exciton model.
Реферат
In this paper, based on the phonon-exciton mechanism, the superconductivity of yttrium barium copper oxide (YBCO) system is explained. The transition temperature (Tc) 's formula is derived by the extended BCS-Eliashberg theory, i.e. phonon-exciton mechanism and McMillan's energy gap function, and the Tc's expressions isreduced by using the Einstein spectrum. Last, the calculating method of element metal effective phonon spectrum is used to the high Tc cuprate YBCO system by using a crystal average atom approximation model. The theoretical analysis and calculational results show that the superconductivity of high Tc YBCO system maybe described by phonon-exciton model.
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AIM: To investigate the plasma neurotensin(NT) concentration in patients with coronary heart disease: acute myocardial infarction(AMI),unstable angina(UA),stable angina pectoris(SAP), old myocardial infarction (OMI), and to study the relationship between the plasma NT level and the myocardial ischemia . METHODS: The plasma NT concentration of 30 patients with AMI,32 patients with UA,35 patients with SAP, 31 patients with OMI and 32 normal controls were determined by radioimmunoassay(RIA). RESULTS: The plasma NT level in patients with AMI(24 h),in patients with UA when angina attacked is significantly higher than that of healthy controls. The plasma NT level in patients with SAP, in patients with OMI is not significantly different from that of healthy controls. The NT level of patients with UA when angina attacked is significantly higher than that after 2 weeks treatment (P