Asynchronous invocations are needed in the context of distributed object frameworks to prevent clients from blocking during remote invocations. Popular Web Service frameworks offer only synchronous invocations (over HTTP). An alternative are messaging protocols but these implement a different communication paradigm. When client asynchrony is not supported, client developers have to build asynch...

Action potentials trigger synchronous and asynchronous neurotransmitter release. Temporal properties of both types of release could be altered in an activity-dependent manner. While the effects of activity-dependent changes in synchronous release on postsynaptic signal integration have been studied, the contribution of asynchronous release to information transfer during natural stimulus pattern...

This dissertation deals with three most important as well as fundamental problems in secure distributed computing, namely Verifiable Secret Sharing (VSS), Byzantine Agreement (BA) and Multiparty Computation (MPC). VSS is a two phase protocol (Sharing and Reconstruction) carried out among n parties in the presence of a centralized adversary who can corrupt up to t parties. Informally, the goal o...

It is well known that synchronization and communication delays are the major sources of performance degradation of synchronous parallel algorithms. It has been shown that asynchronous implementations have the potential to reduce the overhead to minimum. This paper surveys the existing asynchronous schemes and the suucient conditions for the convergence of the surveyed schemes. Some comparisons ...

Rebeca is an actor-based language for modeling concurrent and distributed systems as a set of reactive objects which communicate via asynchronous message passing. Rebeca is extended to support synchronous communication, and at the same time components are introduced to encapsulate the tightly coupled reactive objects which may communicate by synchronous messages. This provide us a language for ...

This paper describes the time analysis of Chandra & Toueg's asynchronous consensus, an algorithm of major importance in the eld of fault-tolerant distributed computing. Contrary to other consensus protocols assuming semi-synchronous or synchronous conditions, Chandra & Toueg's algorithm considers an asynchronous system, thus requiring no bounds on communication delays nor on processes' speeds. ...

My main research is on asynchronous and mixed-timing digital design. Asynchronous circuits have no centralized or global clock. Instead, they are distributed hardware systems where multiple components coordinate and synchronize at their own rate on communication channels. As chips grow increasing larger and faster, power and design-time requirements become more aggressive, and timing variabilit...

We present a technique to achieve O(n) communication complexity per multiplication for a wide class of robust practical MPC protocols. Previously such a communication complexity was only known in the case of non-robust protocols in the full threshold, dishonest majority setting. In particular our technique applies to robust threshold computationally secure protocols in the case of t < n/2 in th...

A novel implementation of Inter process communication in CDMA NOC is proposed. In this study, the orthogonality properties of a Walsh code are used to route data packets between the IP-Cores.The asynchronous circuit design with combinational logic (Gate level design) is used for transmission and receiving circuits, along with ip-cores and reduces the processing time and resource utilization. Th...

This paper describes a conceptual framework focusing on the role that the development of learners’ core cognitive skills and critical thinking plays on the success of synchronous and asynchronous communication within learning designbased e-learning systems. Based on this framework, we propose the design of specific tools which can be used by both teachers and students for structuring synchronou...