Johan Willem Mouton

Johan Petersson

This paper presents a tentative framework for understanding a particular environment of electronic commerce activities the local electronic marketplace. This type of marketplace is Internet-based and dedicated to consumer-oriented commerce. The framework consists of two main components: marketplace functions and marketplace practice. Viewing an electronic marketplace in this way means adopting ...

Willem Blok and Modal Logic

We present our personal view on W.J. Blok’s contribution to modal logic.

Karl Johan Åström & Richard

Karl Johan Åström & Richard M. Murray: Feedback Systems is published by Princeton University Press and copyrighted, © 2008, by Princeton University Press. All rights reserved. No part of this book may be reproduced in any form by any electronic or mechanical means (including photocopying, recording, or information storage and retrieval) without permission in writing from the publisher, except f...

Johan Cilliers AFRICAN SPIRITUALIT1

This paper attempts to define African spirituality as being imbedded in culturalcontextual settings, and uses three keywords to do so: ubuntu (community), ubunye (holism) and amandla (vitality). Some African art works are introduced as aesthetic embodiments of these concepts. A short account is given of the three keywords, coupled with an indication of certain indigenous connections with Christ...

Willem A . de Graaf