1. News section of the Journal of the International Federation for Medical & Biological Engineering July 1973

   MBE News Pages: 365 - 384

2. Spreading expertise in medical and biological engineering

   Editorial Pages: 385 - 385

3. A systems approach to the provision of intensive-care units in the German Democratic Republic

   • G. Hahn

   Invited Paper Pages: 386 - 389

4. Patient monitoring—a part of the systems approach to intensive care in the German Democratic Republic

   • W. Scharner
   • R. Schnabel

   Invited Paper Pages: 390 - 395

5. The design of X ray equipment for use in operating rooms

   • H. Mohr

   OriginalPaper Pages: 396 - 403

6. Physical characteristics and mathematical modelling of the pulsed ultrasonic flowmeter

   • Jens E. Jorgensen
   • Daniel N. Campau
   • Donald W. Baker

   OriginalPaper Pages: 404 - 421

7. Analysis of pressure waves as a mean of diagnosing vascular obstructions

   • Bang M. Kim
   • William H. Corcoran

   OriginalPaper Pages: 422 - 430

8. The orbimeter: A new flowmeter for the measurement of small blood flows

   • Göran Hellekant

   OriginalPaper Pages: 431 - 435

9. Studies on indicator dilution curves using mathematical modelling and digital computer techniques

   • Paul Sekelj

   OriginalPaper Pages: 436 - 446

10. Electrical sizing and counting of platelets in whole blood

    • J. Schulz
    • R. Thom

    OriginalPaper Pages: 447 - 454

11. The use of photoconductive cells in photoplethysmography

    • S. Fine
    • J. Weinman

    OriginalPaper Pages: 455 - 463

12. The innervated left ventricle: a mathematical model of function

    • M. E. Greene
    • J. W. Clarke

    OriginalPaper Pages: 464 - 468

13. Associated change of transthoracic electrical impedance with regional ventilation of the lung

    • Kenji Kawakami
    • Shiro Kira
    • Ayao Ito

    OriginalPaper Pages: 469 - 479

14. Instrumentation for the maintenance of an open-loop condition in the body-fluid volume-control system of small laboratory animals and for the automatic recording of urine flow and conductivity during antidiuretic-hormone bioassay

    • R. Merletti
    • V. Kirilcuk
    • D. G. Patel

    OriginalPaper Pages: 480 - 489

15. A small-animal activity-analysing system for behavioural studies

    • Arnon Cohen
    • Victor H. Denenberg

    OriginalPaper Pages: 490 - 499

16. Advantages of symmetrical isolation transformers in the reduction of patient hazards

    • Klomp A. M.
    • Lucas J. H. M.

    Erratum Pages: 499 - 499

17. Oscilloscope conversion for biopotential measurements

    • W. Morton Caldwell
    • Thomas R. Ebeling
    • L. C. Stradal

    OriginalPaper Pages: 500 - 505

18. Safe, constant-current, electric-shock stimulator

    • M. S. Weiss

    Technical Note Pages: 506 - 508

19. A design chart for obtaining concentration gradients

    • R. G. Baker
    • D. A. Ellis
    • B. J. Vokes

    Technical Note Pages: 509 - 511

20. An isolated transient-free solid-state a.c. power switch

    • Toll M. O.

    Erratum Pages: 511 - 511

21. An inexpensive chart-reading instrument

    • P. J. Lowe
    • C. D. Angenent

    Technical Note Pages: 512 - 513

22. Low-cost burst shaper

    • O. Johansen
    • S. Jacobsen

    Technical Note Pages: 514 - 515

23. Letters to the editors

    • Robert Roger Lebel S. J.

    Letter Pages: 516 - 516