THE staff of the Belfast Hospital for Sick Children for many years have been working under the most difficult and trying conditions. The hospital was built over half a century ago, and had become pitifully antiquated; the out-patient department was so congested that satisfactory work had become a physical impossibility, while the old equipment and long-since-obsolete type of operating-theatres ...

For historic reasons, programming (and its theory, as well as methodology) evolved from the computing paradigm. Many computer applications in common use do not fit this paradigm well. Neither an operating system, nor a word processor compute anything, even if their operation involves many computations. Here we follow another paradigm, viz. that of system behaviour, in which finite actions are u...

Payments can be classified as high-value or low-value. High-value transactions are typically related to purchases and sales of financial assets, mainly foreign exchange and securities. These transactions usually involve only financial institutions, large companies or high net-worth individuals. Payment instruments are either cash or non-cash. Cash is probably the most important instrument for l...

to the splendid Lawrence Reynolds Historical Library in the Birmingham Medical Centre and the cordiality of its custodian, Mrs. Martha Lou Thomas. This volume traces the life of Osler through this refreshing and friendly correspondence. The first letter, when Osler was fifteen years of age, is dated 10 January 1865. It was written from Dundas to Milburn at Oakville because the Christmas vacatio...

For real-world applications digital coin systems, i.e., off-line payment systems offering not only the unforgeability of conventional coins but also the anonymity of customers making purchases, need to have some additional features. One of these additional features is the hardware protection of the system, provided by dedicated tamper-resistant devices called observers which are used to physica...

FREDERICK BURKHARDT and SYDNEY SMITH (editors), The correspondence of Charles Darwin. Volume 1 1821-1836, Cambridge University Press, 1985, 8vo, pp. xxxix, 702, illus., £30.00. "What changes I have had", wrote the twenty-two year old Darwin, "hunting Foxes in Shropshire, now Lamas in S America". Changes there were. While Cambridge friends rusticated in their vicarages (sons of the gentry staffe...

FREDERICK BURKHARDT and SYDNEY SMITH (editors), The correspondence of Charles Darwin. Volume 1 1821-1836, Cambridge University Press, 1985, 8vo, pp. xxxix, 702, illus., £30.00. "What changes I have had", wrote the twenty-two year old Darwin, "hunting Foxes in Shropshire, now Lamas in S America". Changes there were. While Cambridge friends rusticated in their vicarages (sons of the gentry staffe...

To the Editor: Boyce Mkhize's rather verbose attempt 1 to refute Professor Van Niekerk's editorial 2 seems a classic case of the lady protesting too much. It does, however, unintentionally highlight a key issue that has puzzled me since I sent my first cheque off to the then SAMDC. The stated aim of the HPCSA is to protect the public and guide the profession. It is rarely seen to act out of con...