Title	Effects of the coherency on the Performance of the Web Cache Proxy Server
Author	Angel Vassilev Nikolov
Citation	Vol. 9  No. 4  pp. 158-162
Keywords	web cache coherence protocols, hit ratio, queuing network

Title	Simulation of a heterogeneous handoff algorithm
Author	Victor Chi, Lizzie Narv?ez, Erika Llanes
Citation	Vol. 9  No. 4  pp. 163-172
Keywords	Vertical handoff, handoff decision algorithm, simulator

Title	Urine and Copro Recognition with Generalized Entropy and Neural Networks
Author	Diana Calva, Miguel Angel Z??iga Garc?a, Carlos Duchanoy Mart?nez, Gerardo Reyes Salgado, Mario Lehman
Citation	Vol. 9  No. 4  pp. 173-179
Keywords	Neural Networks, Urianalysis, Fecal Material Analysis, Automated Microscopy, pattern recognition, generalized entropy

Title	A New Construction of Short Hierarchical Identity-based Signature in the Standard Model
Author	Leyou Zhang, Yupu Hu
Citation	Vol. 9  No. 4  pp. 180-186
Keywords	Hierarchical identity-based signature, the standard model, h-CDH assumption, provably secure