Reported here are the results of point-contact electron-tunneling measurements in the high-T, superconductors YBa2Cu307 z and T12Ba&Ca2Cu3OIO+g. The ratio 2A/kT, is 4.0 -5.8 {probability maximum near 4.8) for Y-Ba-Cu-0 and 4.6 for Tl-Ba-Ca-Cu-O. Both are consistent with strongcoupling superconductivity.The measurements at 600 different locations of the same sample of YBa&Cu307 -$ were performed. The energy distribution of energy gaps with the regularity of the ratio 1:3:5reported by Kirk et al. have not been seen in our experiment.

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The FTIR spectra of Poly A and Poly U with metal ions as Li +, Na +, K +, Ca ++ indicate that the C -N, C =C, CO = and NH2 group in adenine and uracil base and the -P02 group are the active sites in the interaction between metal ions and nucleic acids.