1. Influence of Mg on the superconductivity and phase composition of samples from the Bi-Pb(Sb)-Mg-Sr-Ca-Cu-O system

   • K. Konstantinov
   • S. Karbanov
   • P. Hinkov

   Papers Pages: 125 - 128

2. Synthesis of Y-Ba-Cu-O thin films by an electrodeposition technique

   • Alan Weston
   • Shashi Lalvani
   • Naushad Ali

   Papers Pages: 129 - 132

3. The photoconductivity of benzaldazine and its o- and p-hydroxy substituents

   • S. M. Shaaban
   • B. A. El-Sayed
   • H. H. Higazy

   Papers Pages: 133 - 136

4. The effect of arsenic pressure on the diffusion-induced disordering of tin in AlAs-GaAs superlattices

   • H. P. Ho
   • I. Harrison
   • M. Henini

   Papers Pages: 137 - 140

5. Investigation of crystallinity of germanium thin films vacuum deposited on GaAs

   • D. Mukherji
   • R. K. Singh

   Papers Pages: 141 - 145

6. Dielectric and relaxation behaviour studies in acrylonitrile-methylacrylate copolymer

   • M. D. Migahed
   • F. M. Reicha
   • M. El-Nimer

   Papers Pages: 146 - 148

7. Preparation of GaAs films by the pulse plating technique

   • K. R. Murali
   • V. Subramanian
   • S. K. Rangarajan

   Papers Pages: 149 - 151

8. Influence of substrate temperature on the structural, optical and electrical properties of ZnO thin films prepared by spray pyrolysis

   • H. H. Afify
   • S. A. Nasser
   • S. E. Demian

   Papers Pages: 152 - 156

9. Compositional dependence of infrared absorption spectra studies for TeO₂-P₂O₅ and TeO₂-P₂O₅-Bi₂O₃ glasses

   • A. Abdel-Kader
   • A. A. Higazy
   • M. M. Elkholy

   Papers Pages: 157 - 163

10. A study of Pb vacancies and Pb-O vacancy pairs in doped Pb_0.85Sr_0.15 (Zr_0.55Ti_0.45)O₃ ceramics by positron annihilation

    • G. H. Dai
    • P. W. Lu
    • W. R. Xue

    Papers Pages: 164 - 170

11. Properties of Hg_1−x Zn _x Te solid solutions

    • A. M. Abo El-Soud
    • F. El Akkad
    • N. A. Ali

    Papers Pages: 171 - 173

12. On the compositional dependence of the optical gap and structural properties of amorphous In _x Se_1−x thin films

    • S. K. Biswas
    • S. Chaudhuri
    • A. Choudhury

    Papers Pages: 174 - 176

13. Magnetic levitation above the superconducting YBa₂Cu₃O_7−x /polymer 0-3 and 2-2 composites

    • H. V. Nguyen
    • T. T. Srinivasan
    • A. S. Bhalla

    Papers Pages: 177 - 182

14. Chemical vapour deposition of PbTiO₃ films onto TiO₂-Si

    • Hae-Yong Lee
    • Ho-Gi Kim

    Papers Pages: 183 - 186