An Improved Hybridized Evolutionary Algorithm Based on Rules for Local Sequence Alignment

Author(s):  
Jayapriya J. ◽  
Michael Arock

In bioinformatics, sequence alignment is the heart of the sequence analysis. Sequence can be aligned locally or globally depending upon the biologist's need for the analysis. As local sequence alignment is considered important, there is demand for an efficient algorithm. Due to the enormous sequences in the biological database, there is a trade-off between computational time and accuracy. In general, all biological problems are considered as computational intensive problems. To solve these kinds of problems, evolutionary-based algorithms are proficiently used. This chapter focuses local alignment in molecular sequences and proposes an improvised hybrid evolutionary algorithm using particle swarm optimization and cellular automata (IPSOCA). The efficiency of the proposed algorithm is proved using the experimental analysis for benchmark dataset BaliBase and compared with other state-of-the-art techniques. Using the Wilcoxon matched pair signed rank test, the significance of the proposed algorithm is explicated.

Author(s):  
Debanjali Sinha ◽  
Sumantro Mondal ◽  
Arijit Nag ◽  
Debasish Lahiri ◽  
Alakendu Ghosh

Background: The objective of the present study was to monitor the disease activity of Takayasu arteritis clinically by the Indian Takayasu Activity Score 2010 (ITAS) and ultra sonographically by Colour Doppler Ultrasound-Kolkata (CDUS-K) Score after 12months of treatment with methotrexate and steroid, and to find the correlation between these two scores.Methods: Around 25 Angiographically proven Takayasu arteritis patients were treated with Methotrexate (15mg weekly) and Steroids (1mg/kg/day for 6weeks and then tapered) for 12months. Wilcoxon matched pair signed rank test was done to assess the change in ITAS 2010 with treatment. A correlation study was done between ITAS 2010 and change in CDUS-K scores at the end of 12months.Results: By Wilcoxon’s matched pair signed rank test, a non-significant change of ITAS 2010 (p=0.066) was observed at the end of 12months, which means that the treatment helps to control the disease progression by preventing a significant increase in ITAS 2010. Strong correlation (correlation coefficient of 0.878, 95% CI = 0.602 to 1.000) was found between the ITAS 2010 and change in CDUS-K scores at 12months follow up.Conclusions: The combination of Methotrexate and steroids helps to control the disease progression in Takayasu arteritis. Colour doppler ultrasonography may serve as a reliable and safe surrogate disease activity measure at follow up, as it avoids the radioactivity exposure and invasiveness of angiography.


2015 ◽  
Vol 582 ◽  
pp. 1-16 ◽  
Author(s):  
Carl Barton ◽  
Tomáš Flouri ◽  
Costas S. Iliopoulos ◽  
Solon P. Pissis

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