Ratna Nandakumar - Publications

School of Education University of Delaware, Newark, DE, United States 
Tests and Measurements Education, Psychometrics Psychology

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Year Citation  Score
2016 Natesan P, Nandakumar R, Minka T, Rubright JD. Bayesian Prior Choice in IRT Estimation Using MCMC and Variational Bayes. Frontiers in Psychology. 7: 1422. PMID 27729878 DOI: 10.3389/fpsyg.2016.01422  0.56
2016 Coster WJ, Ni P, Slavin MD, Kisala PA, Nandakumar R, Mulcahey MJ, Tulsky DS, Jette AM. Differential item functioning in the Patient Reported Outcomes Measurement Information System Pediatric Short Forms in a sample of children and adolescents with cerebral palsy. Developmental Medicine and Child Neurology. PMID 27098277 DOI: 10.1111/dmcn.13138  0.96
2016 Rubright JD, Nandakumar R, Karlawish J. Identifying an appropriate measurement modeling approach for the Mini-Mental State Examination. Psychological Assessment. 28: 125-33. PMID 26029945 DOI: 10.1037/pas0000146  0.96
2015 Ramm C, Wayadande A, Baird L, Nandakumar R, Madayiputhiya N, Amundsen K, Donze-Reiner T, Baxendale F, Sarath G, Heng-Moss T. Morphology and Proteome Characterization of the Salivary Glands of the Western Chinch Bug (Hemiptera: Blissidae). Journal of Economic Entomology. 108: 2055-64. PMID 26470353 DOI: 10.1093/jee/tov149  0.68
2015 Zullo KM, Guo Y, Cooke LS, Jirau-Serrano X, Mangone M, Scotto L, Amengual JE, Mao Y, Nandakumar R, Cremers S, Duong J, Mahadevan D, O'Connor OA. Aurora A Kinase Inhibition Selectively Synergizes With Histone Deactylase Inhibitor Through Cytokinesis Failure In T-Cell Lymphoma. Clinical Cancer Research : An Official Journal of the American Association For Cancer Research. PMID 25878331 DOI: 10.1158/1078-0432.Ccr-15-0033  0.68
2015 Du Z, Nandakumar R, Nickerson KW, Li X. Proteomic adaptations to starvation prepare Escherichia coli for disinfection tolerance. Water Research. 69: 110-9. PMID 25463932 DOI: 10.1016/J.Watres.2014.11.016  0.68
2015 Kieftenbeld V, Nandakumar R. Alternative Hypothesis Testing Procedures for DIMTEST Applied Psychological Measurement. 39: 480-493. DOI: 10.1177/0146621615577618  0.96
2015 Nandakumar R, Gollakota S, Watson N. Contactless sleep apnea detection on smartphones Mobisys 2015 - Proceedings of the 13th Annual International Conference On Mobile Systems, Applications, and Services. 45-57. DOI: 10.1145/2742647.2742674  0.32
2015 Nandakumar R, Halikias GD, Zolotas A. Robust control design of a hydraulic actuator using the QFT method 2007 European Control Conference, Ecc 2007. 2908-2915.  0.96
2014 Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, ... ... Nandakumar R, et al. First observation of a baryonic Bc+ decay. Physical Review Letters. 113: 152003. PMID 25375705 DOI: 10.1103/Physrevlett.113.152003  0.6
2014 Lieber DJ, Catlett J, Madayiputhiya N, Nandakumar R, Lopez MM, Metcalf WW, Buan NR. A multienzyme complex channels substrates and electrons through acetyl-CoA and methane biosynthesis pathways in Methanosarcina. Plos One. 9: e107563. PMID 25232733 DOI: 10.1371/Journal.Pone.0107563  0.68
2014 Fernandez J, Marroquin-Guzman M, Nandakumar R, Shijo S, Cornwell KM, Li G, Wilson RA. Plant defence suppression is mediated by a fungal sirtuin during rice infection by Magnaporthe oryzae. Molecular Microbiology. 94: 70-88. PMID 25098820 DOI: 10.1111/mmi.12743  0.68
2014 Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, ... ... Nandakumar R, et al. Observation of the resonant character of the Z(4430)(-) state. Physical Review Letters. 112: 222002. PMID 24949760 DOI: 10.1103/Physrevlett.112.222002  0.6
2014 Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Ali S, Alkhazov G, Alvarez Cartelle P, Alves AA, Amato S, Amerio S, Amhis Y, ... ... Nandakumar R, et al. Search for Majorana neutrinos in B- → π+ μ- μ- decays. Physical Review Letters. 112: 131802. PMID 24745405 DOI: 10.1103/PhysRevLett.112.131802  0.6
2014 Nandakumar R, Talapatra K. Quantitative profiling of bacteriocins present in dairy-free probiotic preparations of Lactobacillus acidophilus by nanoliquid chromatography-tandem mass spectrometry Journal of Dairy Science. 97: 1999-2008. PMID 24565320 DOI: 10.3168/jds.2013-7470  0.68
2014 Zhang Y, Nandakumar R, Bartelt-Hunt SL, Snow DD, Hodges L, Li X. Quantitative proteomic analysis of the Salmonella-lettuce interaction. Microbial Biotechnology. 7: 630-7. PMID 24512637 DOI: 10.1111/1751-7915.12114  0.68
2014 Huang D, Nandakumar R, Gollakota S. Feasibility and limits of Wi-Fi imaging Sensys 2014 - Proceedings of the 12th Acm Conference On Embedded Networked Sensor Systems. 266-279. DOI: 10.1145/2668332.2668344  0.32
2014 Han S, Nandakumar R, Philipose M, Krishnamurthy A, Wetherall D. Glimpsedata: Towards continuous vision-based personal analytics Wpa 2014 - Proceedings of the 2014 Acm Workshop On Physical Analytics, Co-Located With Mobisys 2014. 31-36. DOI: 10.1145/2611264.2611269  0.32
2014 Hou L, La Torre Jd, Nandakumar R. Differential item functioning assessment in cognitive diagnostic modeling: Application of the wald test to investigate DIF in the DINA model Journal of Educational Measurement. 51: 98-125. DOI: 10.1111/jedm.12036  0.96
2014 Lei S, Zavala-Flores L, Garcia-Garcia A, Nandakumar R, Huang Y, Madayiputhiya N, Stanton RC, Dodds ED, Powers R, Franco R. Alterations in energy/redox metabolism induced by mitochondrial and environmental toxins: A specific role for glucose-6-phosphate-dehydrogenase and the pentose phosphate pathway in paraquat toxicity Acs Chemical Biology. 9: 2032-2048. DOI: 10.1021/cb400894a  0.68
2014 Mouza C, Karchmer-Klein R, Nandakumar R, Yilmaz Ozden S, Hu L. Investigating the impact of an integrated approach to the development of preservice teachers' technological pedagogical content knowledge (TPACK) Computers and Education. 71: 206-221. DOI: 10.1016/j.compedu.2013.09.020  0.96
2014 Rubright JD, Nandakumar R, Glutting JJ. A Simulation study of missing data with Multiple Missing X's Practical Assessment, Research and Evaluation. 19: 1-8.  0.96
2013 Hasim S, Tati S, Madayiputhiya N, Nandakumar R, Nickerson KW. Histone biotinylation in Candida albicans. Fems Yeast Research. 13: 529-39. PMID 23718707 DOI: 10.1111/1567-1364.12056  0.68
2013 Nandakumar R, Chintalapudi KK, Padmanabhan V, Venkatesan R. Dhwani: Secure peer-to-peer acoustic NFC Computer Communication Review. 43: 63-74. DOI: 10.1145/2534169.2486037  0.32
2012 Herrman JW, Nandakumar R. Development of a survey to assess adolescent perceptions of teen parenting. Journal of Nursing Measurement. 20: 3-20. PMID 22679706 DOI: 10.1891/1061-3749.20.1.3  0.96
2012 Li Z, Nandakumar R, Madayiputhiya N, Li X. Proteomic analysis of 17β-estradiol degradation by Stenotrophomonas maltophilia Environmental Science and Technology. 46: 5947-5955. PMID 22587609 DOI: 10.1021/es300273k  0.68
2012 Nandakumar R, Hotchkiss L. PROC NLMIXED: For Estimating Parameters of IRT Models Applied Psychological Measurement. 36: 60-63. DOI: 10.1177/0146621611420419  0.96
2012 Nandakumar R, Chintalapudi KK, Padmanabhan VN. Centaur: Locating devices in an office environment Proceedings of the Annual International Conference On Mobile Computing and Networking, Mobicom. 281-292. DOI: 10.1145/2348543.2348579  0.32
2012 Krishnapriya VV, Sikha M, Nandakumar R, Kidav JU. Hardware efficiency comparison of IP Cores for CAN & LIN protocols 2012 3rd International Conference On Computing, Communication and Networking Technologies, Icccnt 2012. DOI: 10.1109/ICCCNT.2012.6395930  0.96
2012 Raneesha K, Vellody R, Nandakumar R. Hardware efficiency comparison of AES implementations Proceedings - International Conference On Communication Systems and Network Technologies, Csnt 2012. 869-873. DOI: 10.1109/CSNT.2012.187  0.96
2012 Verma Y, Nandakumar R. Development of software asset management system to facilitate software reuse Iet Seminar Digest. 2012. DOI: 10.1049/ic.2012.0142  0.96
2012 Shah M, Verma Y, Nandakumar R. An automated end-to-end multi-agent QoS based architecture for selection of geospatial web services International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - Isprs Archives. 39: 243-248.  0.96
2011 Zhu Y, Nandakumar R, Sadykov MR, Madayiputhiya N, Luong TT, Gaupp R, Lee CY, Somerville GA. RpiR homologues may link Staphylococcus aureus RNAIII synthesis and pentose phosphate pathway regulation. Journal of Bacteriology. 193: 6187-96. PMID 21926234 DOI: 10.1128/JB.05930-11  0.68
2011 Jungermann GB, Burns K, Nandakumar R, Tolba M, Venezia RA, Fouad AF. Antibiotic resistance in primary and persistent endodontic infections Journal of Endodontics. 37: 1337-1344. PMID 21924178 DOI: 10.1016/j.joen.2011.06.028  0.68
2011 Nandakumar R, Santo CE, Madayiputhiya N, Grass G. Quantitative proteomic profiling of the Escherichia coli response to metallic copper surfaces Biometals. 24: 429-444. PMID 21384090 DOI: 10.1007/s10534-011-9434-5  0.68
2011 Leung CB, Silverman R, Nandakumar R, Qian X, Hines S. A comparison of difficulty levels of vocabulary in first grade basal readers for preschool dual language learners and monolingual english learners American Educational Research Journal. 48: 421-461. DOI: 10.3102/0002831210382890  0.96
2011 Nandakumar R, Yu F, Zhang Y. A comparison of bias correction adjustments for the DETECT procedure Applied Psychological Measurement. 35: 127-144. DOI: 10.1177/0146621610376767  0.96
2010 Xu XM, Turanov AA, Carlson BA, Yoo MH, Everley RA, Nandakumar R, Sorokina I, Gygi SP, Gladyshev VN, Hatfield DL. Targeted insertion of cysteine by decoding UGA codons with mammalian selenocysteine machinery. Proceedings of the National Academy of Sciences of the United States of America. 107: 21430-4. PMID 21115847 DOI: 10.1073/Pnas.1009947107  0.68
2010 Li L, Hsiao WWL, Nandakumar R, Barbuto SM, Mongodin EF, Paster BJ, Fraser-Liggett CM, Fouad AF. Analyzing endodontic infections by deep coverage pyrosequencing Journal of Dental Research. 89: 980-984. PMID 20519493 DOI: 10.1177/0022034510370026  0.68
2010 Kandan A, Commare RR, Nandakumar R, Amutha G, Vijayasamundeeswari A, Ramanathan A, Raguchander T, Balasubramanian P, Samiyappan R. Rapid suppression of defence enzymes and compounds by sheath blight (Rhizoctonia solani) and sheath rot (Sarocladium oryzae) toxins in rice cell suspension cultures Archives of Phytopathology and Plant Protection. 43: 1407-1422. DOI: 10.1080/03235400802476658  0.32
2009 Nandakumar R, Madayiputhiya N, Fouad AF. Proteomic analysis of endodontic infections by liquid chromatography-tandem mass spectrometry Oral Microbiology and Immunology. 24: 347-352. PMID 19572900 DOI: 10.1111/j.1399-302X.2009.00520.x  0.68
2009 Kakoli P, Nandakumar R, Romberg E, Arola D, Fouad AF. The effect of age on bacterial penetration of radicular dentin. Journal of Endodontics. 35: 78-81. PMID 19084130 DOI: 10.1016/j.joen.2008.10.004  0.68
2009 Harik P, Clauser BE, Grabovsky I, Nungester RJ, Swanson D, Nandakumar R. An examination of rater drift within a generalizability theory framework Journal of Educational Measurement. 46: 43-58. DOI: 10.1111/j.1745-3984.2009.01068.x  0.96
2009 Nandakumar R, Lalmohan KS, Sreejeesh SG. Design of trickle irrigation control unit using PSoC Act 2009 - International Conference On Advances in Computing, Control and Telecommunication Technologies. 57-59. DOI: 10.1109/ACT.2009.24  0.96
2009 Nandakumar R, Shahjahan AKM, Yuan XL, Dickstein ER, Groth DE, Clark CA, Cartwright RD, Rush MC. Burkholderia glumae and B. gladioli cause bacterial panicle blight in rice in the Southern United States Plant Disease. 93: 896-905. DOI: 10.1094/Pdis-93-9-0896  0.32
2009 Xi Y, Fu C, Ge Y, Nandakumar R, Hisano H, Bouton J, Wang ZY. Agrobacterium-mediated transformation of switchgrass and inheritance of the transgenes Bioenergy Research. 2: 275-283. DOI: 10.1007/s12155-009-9049-7  0.32
2009 Hisano H, Nandakumar R, Wang ZY. Genetic modification of lignin biosynthesis for improved biofuel production In Vitro Cellular and Developmental Biology - Plant. 45: 306-313. DOI: 10.1007/s11627-009-9219-5  0.32
2008 Nandakumar R, Whiting J, Fouad AF. Identification of selected respiratory pathogens in endodontic infections Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology. 106: 969-975. PMID 18585629 DOI: 10.1016/j.tripleo.2008.01.036  0.68
2008 Nandakumar R, Bollich PA, Shahjahan AKM, Groth DE, Rush MC. Evidence for the soilborne nature of the rice sheath rot and panicle blight pathogen, burkholderia gladioli Canadian Journal of Plant Pathology. 30: 148-154. DOI: 10.1080/07060660809507505  0.32
2007 Cook J, Nandakumar R, Fouad AF. Molecular- and Culture-based Comparison of the Effects of Antimicrobial Agents on Bacterial Survival in Infected Dentinal Tubules Journal of Endodontics. 33: 690-692. PMID 17509407 DOI: 10.1016/j.joen.2007.01.022  0.68
2007 Nandakumar R, Mirchandani R, Fouad A. Primer sensitivity: can it influence the results in Enterococcus faecalis prevalence studies? Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology. 103: 429-432. PMID 17095258 DOI: 10.1016/j.tripleo.2006.08.020  0.68
2007 Halikias GD, Zolotas AC, Nandakumar R. Design of optimal robust fixed-structure controllers using the quantitative feedback theory approach Proceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering. 221: 696-716. DOI: 10.1243/09596518JSCE305  0.96
2007 Nandakumar R, Chen L, Rogers SMD. A stable and reproducible transformation system for the wetland monocot Juncus accuminatus (bulrush) mediated by Agrobacterium tumefaciens In Vitro Cellular and Developmental Biology - Plant. 43: 187-194. DOI: 10.1007/s11627-006-9015-4  0.32
2007 Nandakumar R, Babu S, Kalpana K, Raguchander T, Balasubramanian P, Samiyappan R. Agrobacterium-mediated transformation of indica rice with chitinase gene for enhanced sheath blight resistance Biologia Plantarum. 51: 142-148. DOI: 10.1007/s10535-007-0027-7  0.32
2007 Nandakumar R, Babu S, Amutha G, Raguchander T, Samiyappan R. Variation in toxin production among isolates of Sarocladium oryzae, the rice sheath rot pathogen Plant Pathology Journal. 6: 120-126.  0.32
2006 Besson D, Henderson S, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, ... ... Nandakumar R, et al. Measurement of the direct photon momentum spectrum in Υ(1S), Υ(2S), and Υ(3S) decays Physical Review D - Particles, Fields, Gravitation and Cosmology. 74. DOI: 10.1103/Physrevd.74.012003  0.68
2006 Athar SB, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein BI, Gollin GD, Karliner I, Kim D, Lowrey N, Naik P, ... ... Nandakumar R, et al. Radiative decays of the Υ(1S) to a pair of charged hadrons Physical Review D - Particles, Fields, Gravitation and Cosmology. 73. DOI: 10.1103/Physrevd.73.032001  0.68
2005 Nandakumar R, Nandakumar MP, Marten MR, Ross JM. Proteome analysis of membrane and cell wall associated proteins from Staphylococcus aureus. Journal of Proteome Research. 4: 250-7. PMID 15822900 DOI: 10.1021/pr049866k  0.68
2005 Nandakumar R, Chen L, Rogers SM. Agrobacterium-mediated transformation of the wetland monocot Typha latifolia L. (Broadleaf cattail). Plant Cell Reports. 23: 744-50. PMID 15538575 DOI: 10.1007/s00299-004-0890-z  0.32
2005 Arms K, Gan KK, Severini H, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, ... ... Nandakumar R, et al. Study of τ decays to four-hadron final states with kaons Physical Review Letters. 94. DOI: 10.1103/Physrevlett.94.241802  0.68
2005 Cronin-Hennessy D, Gao KY, Gong DT, Hietala J, Kubota Y, Klein T, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Dobbs S, Metreveli Z, Seth KK, Tomaradze A, ... ... Nandakumar R, et al. Searches for CP violation and ππ S wave in the Dalitz-plot analysis of D0→π+π-π0 Physical Review D - Particles, Fields, Gravitation and Cosmology. 72: 1-6. DOI: 10.1103/Physrevd.72.031102  0.68
2005 Ahohe R, Asner DM, Dytman SA, Love W, Mehrabyan S, Mueller JA, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang GS, Miller DH, Pavlunin V, Sanghi B, ... ... Nandakumar R, et al. Search for η(1475)→KS0K ±π∓ in two-photon fusion at the CLEO detector at Cornell Physical Review D - Particles, Fields, Gravitation and Cosmology. 71: 1-12. DOI: 10.1103/Physrevd.71.072001  0.68
2005 Besson D, Pedlar TK, Cronin-Hennessy D, Gao KY, Gong DT, Kubota Y, Lang BW, Li SZ, Poling R, Scott AW, Smith A, Stepaniak CJ, Dobbs S, Metreveli Z, Seth KK, ... ... Nandakumar R, et al. Search for e+e- → Λb 0Λ̄b0 near threshold Physical Review D - Particles, Fields, Gravitation and Cosmology. 71: 012004-1-012004-8. DOI: 10.1103/Physrevd.71.012004  0.68
2005 Kandan A, Ramiah M, Vasanthi VJ, Radjacommare R, Nandakumar R, Ramanathan A, Samiyappan R. Use of Pseudomonas fluorescens-based formulations for management of tomato spotted wilt virus (TSWV) and enhanced yield in tomato Biocontrol Science and Technology. 15: 553-569. DOI: 10.1080/09583150500088546  0.32
2004 Rubin P, Eisenstein BI, Gollin GD, Karliner I, Lowrey N, Naik P, Sedlack C, Selen M, Thaler JJ, Williams J, Edwards KW, Besson D, Gao KY, Gong DT, Kubota Y, ... ... Nandakumar R, et al. First observation and Dalitz analysis of the D0-->K(0)Setapi(0) decay. Physical Review Letters. 93: 111801. PMID 15447329 DOI: 10.1103/Physrevlett.93.111801  0.68
2004 Nandakumar R, Saravanan A, Singaram P, Chandrasekaran B. Effect of lignite humic acid on soil nutrient availability at different growth stages of rice grown on vertisols and alfisols Acta Agronomica Hungarica. 52: 227-235. DOI: 10.1556/AAgr.52.2004.3.4  0.32
2004 Radjacommare R, Kandan A, Nandakumar R, Samiyappan R. Association of the hydrolytic enzyme chitinase against Rhizoctonia solani in rhizobacteria-treated rice plants Journal of Phytopathology. 152: 365-370. DOI: 10.1111/j.1439-0434.2004.00857.x  0.32
2004 Nandakumar R, Chen L, Rogers SMD. Factors affecting the Agrobacterium-mediated transient transformation of the wetland monocot, Typha latifolia Plant Cell, Tissue and Organ Culture. 79: 31-38. DOI: 10.1023/B:TICU.0000049449.77563.56  0.32
2004 Kagale S, Marimuthu T, Thayumanavan B, Nandakumar R, Samiyappan R. Antimicrobial activity and induction of systemic resistance in rice by leaf extract of Datura metel against Rhizoctonia solani and Xanthomonas oryzae pv. oryzae Physiological and Molecular Plant Pathology. 65: 91-100. DOI: 10.1016/j.pmpp.2004.11.008  0.32
2004 Nandakumar R, Roussos L. Evaluation of the CATSIB DIF procedure in a pretest setting Journal of Educational and Behavioral Statistics. 29: 177-199.  0.96
2003 Nandakumar R, Afshari H, Bruley DF. Analysis of equilibrium adsorption isotherms for human protein C purification by immobilized metal affinity chromatography. Advances in Experimental Medicine and Biology. 540: 191-9. PMID 15174620  0.68
2003 Nandakumar R, Yoshimune K, Wakayama M, Moriguchi M. Microbial glutaminase: Biochemistry, molecular approaches and applications in the food industry Journal of Molecular Catalysis B: Enzymatic. 23: 87-100. DOI: 10.1016/S1381-1177(03)00075-4  0.68
2003 Kumar KK, Poovannan K, Nandakumar R, Thamilarasi K, Geetha C, Jayashree N, Kokiladevi E, Raja JAJ, Samiyappan R, Sudhakar D, Balasubramanian P. A high throughput functional expression assay system for a defence gene conferring transgenic resistance on rice against the sheath blight pathogen, Rhizoctonia solani Plant Science. 165: 969-976. DOI: 10.1016/S0168-9452(03)00271-1  0.32
2003 Viswanathan R, Nandakumar R, Samiyappan R. Role of pathogenesis-related proteins in rhizobacteria-mediated induced systemic resistance against Colletotrichum falcatum in sugarcane Zeitschrift Fur Pflanzenkrankheiten Und Pflanzenschutz. 110: 524-534.  0.32
2003 Nandakumar R, Halikias GD, Zolotas AC. A new educational software tool for robust control design using the QFT method Proceedings of the Ieee Conference On Decision and Control. 1: 803-808.  0.96
2003 Sridevi G, Sabapathi N, Meena P, Nandakumar R, Samiyappan R, Muthukrishnan S, Veluthambi K. Transgenic indica rice variety Pusa Basmati 1 constitutively expressing a rice chitinase gene exhibits enhanced resistance to Rhizoctonia solani Journal of Plant Biochemistry and Biotechnology. 12: 93-101.  0.32
2002 Saffary R, Nandakumar R, Spencer D, Robb FT, Davila JM, Swartz M, Ofman L, Thomas RJ, DiRuggiero J. Microbial survival of space vacuum and extreme ultraviolet irradiation: strain isolation and analysis during a rocket flight. Fems Microbiology Letters. 215: 163-8. PMID 12393217 DOI: 10.1111/J.1574-6968.2002.Tb11386.X  0.68
2002 Kandan A, Radja Commare R, Nandakumar R, Ramiah M, Raguchander T, Samiyappan R. Induction of Phenylpropanoid Metabolism by Pseudomonas fluorescens against Tomato Spotted Wilt Virus in Tomato Folia Microbiologica. 47: 121-129. PMID 12058389  0.32
2002 Ward DE, Revet IM, Nandakumar R, Tuttle JH, de Vos WM, van der Oost J, DiRuggiero J. Characterization of plasmid pRT1 from Pyrococcus sp. strain JT1. Journal of Bacteriology. 184: 2561-6. PMID 11948174 DOI: 10.1128/Jb.184.9.2561-2566.2002  0.68
2002 Babu S, Nandakumar R, Sriram S, Jaisankar R, Shanmugam V, Raguchander T, Samiyappan R, Balasubramania P. Relationship between sheath blight development and phytotoxin production by Rhizoctonia solani mutants in rice Acta Phytopathologica Et Entomologica Hungarica. 37: 109-118. DOI: 10.1556/APhyt.37.2002.1-3.12  0.32
2002 Nandakumar R, Halikias GD, Zolotas AC. An optimisation algorithm for designing fixed-structure controllers using the QFT method 2002 Ieee International Symposium On Computer Aided Control System Design, Cacsd 2002 - Proceedings. 157-162. DOI: 10.1109/CACSD.2002.1036946  0.96
2002 Radja Commare R, Nandakumar R, Kandan A, Suresh S, Bharathi M, Raguchander T, Samiyappan R. Pseudomonas fluorescens based bio-formulation for the management of sheath blight disease and leaffolder insect in rice Crop Protection. 21: 671-677. DOI: 10.1016/S0261-2194(02)00020-0  0.32
2002 Nandakumar R, Babu S, Radjacommare R, Raguchander T, Samiyappan R. Pseudomonas fluorescens mediated antifungal activity against Rhizoctonia solani causing sheath blight in rice Phytopathologia Mediterranea. 41: 109-119.  0.32
2001 Shanmugam V, Sriram S, Babu S, Nandakumar R, Raguchander T, Balasubramanian P, Samiyappan R. Purification and characterization of an extracellular α-glucosidase protein from Trichoderma viride which degrades a phytotoxin associated with sheath blight disease in rice Journal of Applied Microbiology. 90: 320-329. PMID 11298225 DOI: 10.1046/j.1365-2672.2001.01248.x  0.32
2001 Babu S, Seetharaman K, Nandakumar R, Johnson I. Variation in Sensitivity to Fungicides among Isolates of Alternaria solani Causing Tomato Leaf Blight Disease Acta Phytopathologica Et Entomologica Hungarica. 36: 251-258. DOI: 10.1556/APhyt.36.2001.3-4.4  0.32
2001 Nandakumar R, Babu S, Viswanathan R, Sheela J, Raguchander T, Samiyappan R. A new bio-formulation containing plant growth promoting rhizobacterial mixture for the management of sheath blight and enhanced grain yield in rice Biocontrol. 46: 493-510. DOI: 10.1023/A:1014131131808  0.32
2001 Nandakumar R, Babu S, Viswanathan R, Raguchander T, Samiyappan R. Induction of systemic resistance in rice against sheath blight disease by Pseudomonas fluorescens Soil Biology and Biochemistry. 33: 603-612. DOI: 10.1016/S0038-0717(00)00202-9  0.32
2001 Yu F, Nandakumar R. Poly-detect for quantifying the degree of multidimensionality of item response data Journal of Educational Measurement. 38: 99-120.  0.96
2000 Nandakumar R, Nandakumar MP, Mattiasson B. Quantification of nisin in flow-injection immunoassay systems Biosensors and Bioelectronics. 15: 241-247. PMID 11219735 DOI: 10.1016/S0956-5663(00)00083-X  0.68
2000 Nandakumar R, Gounot AM, Mattiasson B. Gentle lysis of mucous producing cold-adapted bacteria by surfactant treatment combined with mechanical disruption Journal of Biotechnology. 83: 211-217. PMID 11051418 DOI: 10.1016/S0168-1656(00)00317-5  0.68
2000 Sriram S, Raguchander T, Babu S, Nandakumar R, Shanmugam V, Vidhyasekaran P, Balasubramanian P, Samiyappan R. Inactivation of phytotoxin produced by the rice sheath blight pathogen Rhizoctonia solani Canadian Journal of Microbiology. 46: 520-524. PMID 10913973  0.32
2000 Nandakumar MP, Nandakumar R, Mattiasson B. Fluorimetric quantification of intracellular lactate dehydrogenase during fermentation using flow injection analysis Biotechnology Letters. 22: 1453-1457. DOI: 10.1023/A:1005672817354  0.68
1999 Nandakumar R, Mattiasson B. Affinity isolation of a cold-adapted enzyme: Lactate dehydrogenase from Bacillus psychrosaccharolyticus Bioseparation. 7: 327-331. PMID 10643641  0.68
1999 Alkasrawi M, Nandakumar R, Margesin R, Schinner F, Mattiasson B. A microbial biosensor based on Yarrowia lipolytica for the off-line determination of middle-chain alkanes Biosensors and Bioelectronics. 14: 723-727. PMID 10641291 DOI: 10.1016/S0956-5663(99)00046-9  0.68
1999 Nandakumar R, Wakayama M, Nagano Y, Kawamura T, Sakai K, Moriguchi M. Overexpression of salt-tolerant glutaminase from Micrococcus luteus K-3 in Escherichia coli and its purification Protein Expression and Purification. 15: 155-161. PMID 10049670 DOI: 10.1006/prep.1998.1005  0.68
1999 Nandakumar R, Mattiasson B. A low temperature microbial biosensor using immobilised psychrophilic bacteria Biotechnology Techniques. 13: 689-693. DOI: 10.1023/A:1008963730069  0.68
1999 Nandakumar R, Mattiasson B. A tyrosinase based enzyme sensor for the determination of phenolic compounds in an expanded bed system Resource and Environmental Biotechnology. 2: 327-338.  0.68
1999 Nandakumar R, Mattiasson B. A microbial biosensor using Pseudomonas putida cells immobilised in an expanded bed reactor for the on-line monitoring of phenolic compounds Analytical Letters. 32: 2379-2393.  0.68
1998 Nandakumar R, Yu F, Li HH, Stout W. Assessing unidimensionality of polytomous data Applied Psychological Measurement. 22: 99-115.  0.96
1997 Stout W, Li HH, Nandakumar R, Bolt D. MULTISIB: A procedure to investigate DIF when a test is intentionally two-dimensional Applied Psychological Measurement. 21: 195-213.  0.96
1996 Golinkoff RM, Jacquet RC, Hirsh-Pasek K, Nandakumar R. Lexical principles may underlie the learning of verbs. Child Development. 67: 3101-19. PMID 9071772 DOI: 10.1111/J.1467-8624.1996.Tb01905.X  0.96
1996 Nandakumar R, Yu F. Empirical validation of DIMTEST on nonnormal ability distributions Journal of Educational Measurement. 33: 355-368.  0.96
1993 Nandakumar R. A FORTRAN Program for Assessing Unidimensionality of Binary Data Using Holland and Rosenbaum's Methodology Multivariate Behavioral Research. 28: 63-66. DOI: 10.1207/s15327906mbr2801_4  0.96
1993 Nandakumar R, Glutting JJ, Oakland T. Mantel-haenszel methodology for detecting item bias: An introduction and example using the guide to the assessment of test session behavior Journal of Psychoeducational Assessment. 11: 108-119. DOI: 10.1177/073428299301100201  0.96
1984 Subba Rao SV, Subramanyam B, Nandakumar R. PROGRAMME MODE OF ANTENNA POSITION CONTROL USING MICROCOMPUTER Journal of the Institution of Engineers. India. Electronics and Telecommunication Engineering Division. 65: 43-45.  0.96
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