Srinivas Raghavendra

Learn More
Conducting polymer composites of polypyrrole/yttrium oxide (PPy/Y2O3) were synthesized by in situ polymerization of pyrrole with Y2O3 using FeCl3 as an oxidant. The Y2O3 is varied in five different weight percentages of PPy in PPy/Y2O3 composites. The synthesized polymer composites are characterized by infrared and X-ray diffraction techniques. The surface(More)
SFI WORKING PAPER: 2004-09-028 SFI Working Papers contain accounts of scientific work of the author(s) and do not necessarily represent the views of the Santa Fe Institute. We accept papers intended for publication in peer-reviewed journals or proceedings volumes, but not papers that have already appeared in print. Except for papers by our external faculty,(More)
Phenomena which involves collective choice of many agents who are interacting with each other and choosing one of several alternatives, based on the limited information available to them, frequently show switching between two distinct phases characterized by a bimodal and an unimodal distribution respectively. Examples include financial markets, movie(More)
Complex systems inspired analysis suggests a hypothesis that financial meltdowns are abrupt critical transitions that occur when the system reaches a tipping point. Theoretical and empirical studies on climatic and ecological dynamical systems have shown that approach to tipping points is preceded by a generic phenomenon called critical slowing down, i.e.(More)
A No early warning signals for stochastic transitions driven by large but constant strength of stochasticity. . . . . . . . . . . . . . . . . . . . . . . . 4 B No early warning signals for stochastic transitions in agent based models driven by large but constant strength of stochasticity. . . . . . . . . . . . 5 C Sensitivity analysis for early warning(More)
This paper introduces a stock scanner evaluator for stocks and options. In the presented work the scanner picks from thousands of stocks the most suitable stocks for an options or stocks investor. The proposed stocks scanner evaluator suggests the stocks that have the largest positive near future change (for purchasing stocks or calls) and the stocks that(More)
We seek out to investigate the social networks manifested in weblogs. Our dataset, derived from an initial list of URIs, consists of 3.9M files in XML or RDF format, totalling over 400M statements in RDF. We continue by applying wellknown network analysis algorithm to parts of the derived network. Our experiments show that links analysis algorithms benefit(More)
The total syntheses of natural products Prelactone-V and Prelactone-B have been accomplished by a novel Chiron approach starting from d-glucose. The synthesis involves isopropylidene acetal formation of d-glucose using Poly(4-vinylpyridine) supported iodine as a catalyst, Tebbe olefination, Grignard reaction, Wittig olefination, selective mono deprotection(More)
  • 1