A telecommunication system like an ISDN network comprises a great variety of software components. It includes software for switches, the terminal equipment (like a simple telephone) but also for the management of resources and the provision of high level services like time dependent call forwarding. Software for telecommunication systems like other software must be fast, robust and easy to main...

We describe our unifying architecture for multipoint-to-multipoint communications in ATM networks which meets the diverse requirement of group communications and permit a large degree of control on the multicast group. With an integrated use of a name space, the scheme allows scalable extension to large scale wide area multicast communications. We also enable exible control on routeing architec...

Apoptosis or programmed cell death is a gene regulated phenomenon which is important in both physiological and pathological conditions. It is characterized by distinct morphological features including chromatin condensation, cell and nuclear shrinkage, membrane blebbing and oligonucleosomal DNA fragmentation. Although, two major apoptotic pathways including 1) the death receptor (extrinsic) and...

Background: Though it is well established that maternal blood-borne signals influence highly the growth of the placenta, the mechanisms are not known. In vitro trophoblast culture models are limited by an inability to reconstruct the polarised bilayer of the human hemochorial placenta. We have used a first trimester villous tissue explant system to investigate how growth factors interact with p...