S Ramesh

The first edition of this book entitled "A Textbook of Novel Drug Delivery Systems" consists of 10 chapters and covers basic concepts in mucoadhesive drug delivery system, oral controlled drug delivery system, prodrugs, resealed erythrocytes and transdermal drug delivery systems. This book has been written with clear description, figure along with illustrative examples. In all chapters we discussed about different polymers used, preparation methods and characterization. It will be useful for undergraduate and post graduate students in pharmacy. It will also increase the interest of this subject and made easier for the readers

To maintain the information that is required to properly route the traffic is a key issue in MANET. Among the available routing techniques trust based routing techniques seem to be better. In trust based routing technique, security threats that occur during routing as well as network initialization is a left out problem. In this proposed scheme Protected Reliable Routing (PRR) ensures security in all expected parameters. Node formation is done by two way secured encrypted techniques which double checks for false node by ECDSA in case of multicast communication and HMAC embedded with MD5 in case of unicast communication and then allocates IP for new node. In routing to avoid delay, Bees algorithm is being used to choose the optimized path from source to sink based on the higher objective value and then source node gathers recommendation from neighbour node, analyse them by calculating confidence value and response value. The result thus obtained is again handpicked based on high communication rate to have a better knowledge about destination. Efficiency of PRR is shown by comparing it with existing techniques in terms of overhead, packet delivery ratio, packet loss and throughput.

ACO algorithm has been used to find the shortest path among the neighboring nodes of the sender. After traversing the routes to the neighboring nodes, the pheromone value is calculated for each traversed node. The node with highest pheromone value is the nearest node. Then using the reputation system, the past actions of that node are considered and they are analyzed. This analysis shows whether the node is regular or malicious based on the belief updation. Thus the data can be forwarded to the destination node in a secured manner and this method is followed until the data reaches the destination.

The primary aim of this monograph is to present the current research efforts that have gone into/or going on in the systematic design of real-time programs. Such an effort would help researchers and users in the area to get a clear picture of the issues of specification, verification and design of real-time reactive programs. It will clearly enable us to identify languages that can be used for different kinds of applications. Obviously, in an upcoming area like this, this presentation is far from complete. The quintessence of the monograph can be captured by the following question:How can we design and develop Robust Reactive (real-time) Programs? We address this question in this monograph through the various underlying issues listed, such as characteristics of real-time/reactive programs, reactive programming languages, verification and refinements.