American Journal of Bioinformatics Research

American Journal of Bioinformatics Research publishes all the newest and distinguished research articles, reviews and letters in all areas of bioinformatics and computational biology. Each issue contains a series of timely, in-depth written articles by leaders in the field, covering a wide range of the integration of biology with computer and information science.

Ravi Shankar Nowpada

Editorial Board Member of American Journal of Bioinformatics Research

Associate Professor, Gitam university, India

Research Areas

Fuzzy Set Theory, Group Theory, Graph Theory , Rough Set Theory, Operations Research, Bioinformatics


2008M.Tech(Computer Science and Technology with Bioinformatics as specialization), Andhra University
2002Ph.D(Applied Mathematics), Andhra University
1992M.Sc(Applied Mathematics), Andhra University


2006-presentWorking as Associate Professor in GITAM
1998-2006Worked as Assistant Professor in GITAM
1992-1998Worked as Lecturer in V.V.R.K.M.L.Degree college, Visakhapatnam


Life member, Operations Research Society of India
Life member, Ramanujan society of India
Member, International Rough set society
Life member, Prof. S. Minakshi Sundaram Memorial Society

Publications: Conferences/Workshops/Symposiums/Journals/Books

[1]  Ch. Suryanarayana, N.Ravi Shankar, " S-Function identities and their inner products" Journal of Indian Academy of Mathematics, Vol. 20, No.1 (1998) 13-17.
[2]  C.R. Sarma, N.Ravi Shankar, S. Rettrup, "A graphical scheme for representing many electron spin-free configurations" International journal of Quantum chemistry, vol. 86, (2002) 417-421.
[3]  N. Ravi Shankar, Ch. Suryanarayana, "Allowed multiplets and coordinate wave functions of the ammonia" in Acta Ciencia Indica, Vol. XXXIII M , No.3, (2007) 831-837.
[4]  Appa Rao Allam, Sridhar R Gumpeny, MN Vamsi Thalatam, S.Sita Ram Babu, N. Ravi Shankar, P.Anuradha, "Study of Microsatellites role in BRCA2 Gene causing pancreatic cancer and breast cancer" Journal of Proteomics and Bioinformatics, Vol.2, (2008), 33-35.
[5]  N. Ravi Shankar, V.Sireesha, "An Approximation for the activity duration distribution, supporting original PERT" Applied Mathematical Sciences, Vol.3, (2009) 2823-2834.
[6]  N. Ravi Shankar, S.Sita Ram Babu " Microsatellites role in HNF4A gene causing type 2 diabetes and MODY" Advanced studies in Biology, vol.5, (2009) 231-242.
[7]  N.Ravi Shankar, V.Sireesha " A graphical approach to find the critical path in a project network" in Contemporary Engineering Sciences, vol.2, no.12 (2009) 553-558.
[8]  N.Ravi Shankar, G.Ananda Rao, J.Madhu latha , V.Sireesha " Solving a Fuzzy Nonlinear Optimization problem by genetic algorithm" International Journal of contemporary Mathematical sciences, vol.5, no.16, (2010) 791-803.
[9]  N.Ravi Shankar, K.Surya Narayana Rao, V. Sireesha, " Estimating the mean and variance of activity duration in PERT" International Mathematical forum, vol.5, no.18, (2010) 861-868.
[10]  N.Ravi Shankar, V.Sireesha, P.Phani Bushan Rao " An analytical method for finding critical path in a fuzzy project network" International Journal of contemporary Mathematical sciences, vol.5, no.20, (2010) 953-962.
[11]  N.Ravi Shankar, V.Sireesha, K.Srinivasa Rao, N.Vani " Fuzzy critical path method based on metric distance ranking of fuzzy numbers " International Journal of Mathematical analysis, vol.4, no.20, (2010) 995-1006.
[12]  N.Ravi Shankar, Ch. Suryanarayana, S.Raja Sekhar, A.Ganapathi Rao, "The kronecker product of symmetric group representations using schur functions " in International Journal of Algebra, vol.4, no.12, (2010) 579-584.
[13]  N.Ravi Shankar, T.Srikanth, B.Ravi Kumar, " Dynamic reducts in object oriented information system using rough set theory" International Journal of Engineering science and Technology , vol.2, no.3, (2010) 122-136.
[14]  N.Ravi Shankar, B.Ravi Kumar, T.Srikanth " Rough set model using lattice theory" International Journal of machine intelligence, vol.2, (2010) 89-92.
[15]  V.Sireesha, N.Ravi Shankar, "A New approach to find total float time and critical path in a fuzzy project network" International Journal of Engineering science and technology, vol.2, no.4, (2010) 600-609.
[16]  N.Ravi Shankar, V.Sireesha " Using modified Dijkstra's algorithm for critical path method in a project network" International Journal of Computational and Applied Mathematics, vol.5, no.2, (2010) 217-225.
[17]  N.Ravi Shankar, B.Ravi Kumar, G. Ananda Rao, T.Srikanth " Reducts in Object Oriented Information System" International Journal of Contemporary Mathematical Sciences, vol.5, 2010, no. 36, 1771-1787.
[18]  N.Ravi Shankar, T.Srikanth, B.Ravi Kumar, G.Ananda Rao "Genetic algorithm for object oriented reducts using rough set theory" International Journal of Algebra, vol.4, 2010, no.17, 827-842.
[19]  N.Ravi Shankar , V.Sireesha, P.Phani Bushan Rao , " Critical Path Analysis in the Fuzzy Project Network" Advances in Fuzzy Mathematics, vol. 5, 2010 , 285-294.
[20]  N.Ravi Shankar, M.M.K.Raju , P.Hima Bindu, " Discrete Time, Cost and Quality Trade-Off Problem with renewable and Non renewable resources" International Journal of Computational Science and Mathematics, Vol. 2, 2010, 285-290.
[21]  P. Phani Bushan Rao , V.Sireesha , N.Ravi Shankar, New Path Float in PERT for Right skewed distribution of activity times , Proceedings of the fifty-fifth congress of the Indian society of theoretical and applied mechanics (ISTAM An International meet) held from December 18th to 21st , 2010, 223-228.
[22]  N.Ravi Shankar, P. Phani Bushan Rao, S. Siresha, K.Usha Madhuri, " Critical Path Method in a Project Network using Ant Colony Optimization" International Journal of Computational Intelligence Research, Vol. 7 , 2011 , 7-16.
[23]  N.Ravi Shankar, V.Sireesha, S.Siresha , K. Usha Madhuri, "Measuring Risk element criticality in a fuzzy project network using trapezoidal fuzzy number method" Applied Mathematical sciences, Vol. 5, 2011, 529-539.
[24]  N.Ravi Shankar, S.Suresh Babu, Y.L.P. Thorani, D.Raghuram, "Right skewed distribution of activity times in PERT" International journal of engineering science and technology, vol 3, No.4., 2011, 2932-2938.
[25]  N.Ravi Shankar, K. Srinivasa Rao, S.Siresha, "A new approach to evaluate characteristics involved in a fuzzy critical path method" Advances in Fuzzy Mathematics, vol. 6., No.2, 2011, 217-226.
[26]  P. Phani Bushan Rao , N.Ravi Shankar, "Ranking Fuzzy Numbers with a Distance Method using Circumcenter of Centroids and an Index of Modality" Advances in fuzzy systems, Volume 2011 (2011), Article ID 178308, 7 pages.
[27]  V. Sireesha , N. Ravi Shankar, " Analysis of time estimates on right skewed distribution of activity times in PERT" Journal of Statistics and Mathematics, Volume 2 , 2011 , 15-22.
[28]  N.Ravi Shankar, M.M.K.Raju, G.Srikanth, P.Hima Bindu, "Time, Cost and Quality trade-off analysis in construction of projects", Contemporary Engineering Sciences, Vol.4, 2011, 289-299.
[29]  N.Ravi Shankar , B. Pardha Saradhi , " Fuzzy critical path method in interval valued activity networks" International Journal of pure and applied sciences and technology, Vol.3 , No.2, 2011, 72-79.
[30]  P. Phani Bushan Rao , N.Ravi Shankar , "Fuzzy Critical Path Method Based on Lexicographic Ordering" Pakistan Journal of Statistics and Operation Research, Vol 8. No. 1 Jan 2012 (accepted).