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Hassan E, Chaudhury S, Gopal M. Multiple kernel learning for image indexing. PROCEEDINGS OF THE SEVENTH INDIAN CONFERENCE ON COMPUTER VISION, GRAPHICS AND IMAGE PROCESSING 2010. [DOI: 10.1145/1924559.1924606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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27
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Arun Kumar M, Khemchandani R, Gopal M, Chandra S. Knowledge based Least Squares Twin support vector machines. Inf Sci (N Y) 2010. [DOI: 10.1016/j.ins.2010.07.034] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Arun Kumar M, Gopal M. Fast Multiclass SVM Classification Using Decision Tree Based One-Against-All Method. Neural Process Lett 2010. [DOI: 10.1007/s11063-010-9160-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hassan E, Chaudhury S, Gopal M. Identity Determination with Offline Handwritten Input Using Multi Kernel Feature Combination. 2010 12TH INTERNATIONAL CONFERENCE ON FRONTIERS IN HANDWRITING RECOGNITION 2010. [DOI: 10.1109/icfhr.2010.19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Adhyaru DM, Kar IN, Gopal M. Bounded robust control of nonlinear systems using neural network–based HJB solution. Neural Comput Appl 2010. [DOI: 10.1007/s00521-010-0441-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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31
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Hassan E, Chaudhury S, Gopal M. Document Image Retrieval Using Feature Combination in Kernel Space. 2010 20TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION 2010. [DOI: 10.1109/icpr.2010.495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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32
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Kumar MA, Gopal M. A comparison study on multiple binary-class SVM methods for unilabel text categorization. Pattern Recognit Lett 2010. [DOI: 10.1016/j.patrec.2010.02.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hassan E, Chaudhury S, Gopal M, Dholakia J. Use of MKL as symbol classifier for Gujarati character recognition. PROCEEDINGS OF THE 9TH IAPR INTERNATIONAL WORKSHOP ON DOCUMENT ANALYSIS SYSTEMS 2010. [DOI: 10.1145/1815330.1815363] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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34
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Sharma R, Gopal M. Synergizing reinforcement learning and game theory—A new direction for control. Appl Soft Comput 2010. [DOI: 10.1016/j.asoc.2009.10.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Ho D, Gopal M, Ojelabi MO. Economic implications of preoperative PET-CT scanning in potentially resectable non-small cell lung cancer (NSCLC). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e16551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Gopal M, Balasubramanian D, Kanagarajah P, Anirudhan A, Murugan P. Madras Medical College: 175 years of medical heritage. THE NATIONAL MEDICAL JOURNAL OF INDIA 2010; 23:117-120. [PMID: 20925216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Ravichandra P, Gopal M, Annapurna J. Biological sulfide oxidation using autotrophicThiobacillussp.: evaluation of different immobilization methods and bioreactors. J Appl Microbiol 2009; 106:1280-91. [DOI: 10.1111/j.1365-2672.2008.04095.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Hassan E, Chaudhury S, Gopal M. Shape Descriptor Based Document Image Indexing and Symbol Recognition. 2009 10TH INTERNATIONAL CONFERENCE ON DOCUMENT ANALYSIS AND RECOGNITION 2009. [DOI: 10.1109/icdar.2009.63] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Shahabuddin MS, Gopal M. Genotoxicity of DNA Intercalating Anticancer Drugs: Pyrimido[4I,5I:4,5] thieno(2,3-b)quinolines on Somatic and Germinal Cells. Toxicol Mech Methods 2008; 17:135-45. [DOI: 10.1080/15376510600899605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Shahabuddin MS, Gopal M, Vijayalaxmi KK. The Genotoxicity of DNA Intercalating Drug 8-Methoxy pyrimido [4′,5′:4,5]thieno(2,3-b)quinoline-4(3H)-one. Drug Chem Toxicol 2008; 28:345-57. [PMID: 16051559 DOI: 10.1081/dct-200064506] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
8-methoxypyrimido[4',5':4,5]thieno(2,3-b)quinoline-4(3H)-one (MPTQ) is known to have antitumor and cytotoxic activities on various types of tumors. This compound showed a strong clastogenic effect on bone marrow cells of Swiss albino mice treated in vivo (17.5-35 mg/kg body weight). MPTQ induced micronuclei formation (MN) at doses of 17.5, 23.3, and 35 mg/kg. Dose and time-yield effect of MPTQ was studied in the case of chromosome aberration assay. MPTQ induced a statistically significant increase in the frequency of chromosome aberrations and micronuclei induction. The drug induced significant abnormal sperms even in the sperm shape abnormality assay. Based on the data reported in the literature, we have tried to establish the relationship between the clastogenic effect observed and process of MPTQ intercalation into DNA and the formation of protein-associated DNA-strand breaks probably promoted by topoisomerase enzymes.
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Shenoy S, Vasania VS, Gopal M, Mehta A. 8-Methly-4-(3-diethylaminopropylamino) pyrimido [4′,5′;4,5] thieno (2,3–b) quinoline (MDPTQ), a quinoline derivate that causes ROS-mediated apoptosis in leukemia cell lines. Toxicol Appl Pharmacol 2007; 222:80-8. [PMID: 17553538 DOI: 10.1016/j.taap.2007.04.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2006] [Revised: 04/04/2007] [Accepted: 04/13/2007] [Indexed: 11/26/2022]
Abstract
The present study reports the biological activity of 8-methyl-4-(3-diethylamino-propylamino) pyrimido [4';5';4,5] thieno (2,3-b) quinoline (MDPTQ), a quinoline derivative structurally related to ellipticine and suggests a possible mechanism through which the compound induces apoptosis in carcinoma cell lines. Out of the 8 cell lines used in the study as representatives of different types of cancer, MDPTQ was found to be effective only against leukemia cell lines (HL-60 and K-562) whereas it had no effect on normal human bone marrow cells (BMC) which were used as controls. Fall mitochondrial membrane potential and increased reactive oxygen species (ROS) were mainly responsible for inducing apoptosis in the two cell lines. Cell death was demonstrated by increase in caspase 3 activity as well as phosphatidyl serine exposure. Pre-incubation with N-acetylcysteine (NAC) reduced the increased ROS and caspase 3 activity as well as phosphatidyl serine exposure. MDPTQ also caused cell cycle arrest in these cell lines. The above study for the first time reports the mode of action of a quinoline derivative, which could be a possible future candidate for leukemia therapy. However, there are lot of questions that need to be answered in terms of signalling pathways and its effects on animal models.
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Gopal M, Turnpenny PD, Spicer R. Hereditary sacrococcygeal teratoma--not the same as its sporadic counterpart! Eur J Pediatr Surg 2007; 17:214-6. [PMID: 17638164 DOI: 10.1055/s-2007-965121] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Sacrococcygeal teratoma (SCT) can be sporadic or familial and there appear to be different characteristics to these entities. It can be an isolated anomaly or occur as part of the Currarino triad, when it is associated with anorectal malformations and sacral anomalies. We present a case of familial sacrococcygeal teratoma and discuss its relationship to previously published reports, drawing conclusions regarding embryogenesis, diagnosis, screening and management.
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Mukherjee I, Singh S, Sharma PK, Jaya M, Gopal M, Kulshrsestha G. Extraction of multi-class pesticide residues in mango fruits (Mangiferae indica L.): application of pesticide residues in monitoring of mangoes. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2007; 78:380-3. [PMID: 17618379 DOI: 10.1007/s00128-007-9203-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2006] [Accepted: 04/10/2007] [Indexed: 05/16/2023]
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Mukherjee I, Gopal M, Mathur DS. Behavior of beta-cyfluthrin after foliar application on chickpea (cicer aretinium L. ) and pigeon pea (cajanus cajan L.). BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2007; 78:85-9. [PMID: 17372662 DOI: 10.1007/s00128-007-9018-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
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46
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Chandrasekar P, Krishnamoorthy G, Gopal M, Kapasi F, Potluri B. MP-12.07. Urology 2006. [DOI: 10.1016/j.urology.2006.08.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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47
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Bhatt RB, Gopal M. On the extension of functional dependency degree from crisp to fuzzy partitions. Pattern Recognit Lett 2006. [DOI: 10.1016/j.patrec.2005.09.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Bhatt RB, Gopal M. Neuro-fuzzy decision trees. Int J Neural Syst 2006; 16:63-78. [PMID: 16496439 DOI: 10.1142/s0129065706000470] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2005] [Revised: 08/22/2005] [Accepted: 12/22/2005] [Indexed: 11/18/2022]
Abstract
Fuzzy decision trees are powerful, top-down, hierarchical search methodology to extract human interpretable classification rules. However, they are often criticized to result in poor learning accuracy. In this paper, we propose Neuro-Fuzzy Decision Trees (N-FDTs); a fuzzy decision tree structure with neural like parameter adaptation strategy. In the forward cycle, we construct fuzzy decision trees using any of the standard induction algorithms like fuzzy ID3. In the feedback cycle, parameters of fuzzy decision trees have been adapted using stochastic gradient descent algorithm by traversing back from leaf to root nodes. With this strategy, during the parameter adaptation stage, we keep the hierarchical structure of fuzzy decision trees intact. The proposed approach of applying backpropagation algorithm directly on the structure of fuzzy decision trees improves its learning accuracy without compromising the comprehensibility (interpretability). The proposed methodology has been validated using computational experiments on real-world datasets.
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Sudha T, Teja VD, Gopal M, Rajesh M, Lakshmi V. Comparative evaluation of TRI-DOT Rapid HIV test with fourth-generation ELISA for the detection of human immunodeficiency virus. Clin Microbiol Infect 2005; 11:850-2. [PMID: 16153264 DOI: 10.1111/j.1469-0691.2005.01231.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study evaluated the TRI-DOT Rapid HIV test for the early detection of human immunodeficiency virus (HIV) infection in comparison with a fourth-generation ELISA (Vironostika HIV Uniform II). Of 23,609 sera, seven (0.03%) gave discordant results. Six of these were reactive only by the fourth-generation assay and were p24 antigen-positive by VIDAS DUO, Western blot and qualitative RT-PCR tests. The remaining discordant serum was considered to be false-positive by the TRI-DOT assay, as it was negative by repeat ELISA and Western blot tests. The sensitivity and specificity of the TRI-DOT test were 99.48% and 99.99%, respectively, compared with the fourth-generation ELISA.
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Gopal M, Jha SK, Shukla L, Rawat RV. In vitro detoxification of pendimethalin by two Actinomycetes spp. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2005; 75:1041-5. [PMID: 16400596 DOI: 10.1007/s00128-005-0854-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2005] [Accepted: 08/26/2005] [Indexed: 05/06/2023]
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