T.M. Aminabhavi: a biobibliometric study

Annals of Library and Information Studies Vol. 55, June 2008, pp. PARVATHAMMA 127-134 & GOBBUR: T.M. AMINABHAVI: A BIOBIBLIOMETRIC STUDY 127 T.M. Aminabhavi: a biobibliometric study Parvathamma N a and Devendra S. Gobbur b a Professor, Department of Library & Information Science, Gulbarga University, Gulbarga 585 106, E-mail: parvathi_glb@yahoo.co.in b Assistant Librarian, Gulbarga University Library, Gulbarga 585 106 Reveals that in his 36 years of teaching and 28 years of research experience in various fields of polymer science, T M Aminabhavi has published 521 research articles, 57 popular articles and 94 conference papers in eight domains of polymer science. He has three US patents to his credit and has completed research projects worth Rs.Six crores. He has one book to his credit, published by John Wiley. Collaboration coefficient is between 0.9 and 1.0 indicating the interdisciplinary nature of his research. The year 2006 has been the most productive year in his research career wherein he has published 96 research papers. The period of international collaboration is significant with W.E. Rudzinski (22 years), Patrick E. Cassidy (15 years), J.D. Ortego (12 years) and T.H.S. Phayde (05 years). Indian collaborators with more than 15 years of association are Manjeshwar (21 years), S.B. Halligudi (19 years) and M.I. Aralaguppi (16 years) in the above mentioned domains of research. Journal of Applied Polymer Science, published in USA has been the most preferred journal for publishing his research findings (102 research articles). 70.81% of his research articles are published in the journals originating from USA (326 articles - 59.11%) and India (61 articles- 11.70%). Introduction A biobibliometric study deals with the bibliographical study of the individual careers of scientists and researchers and correlates the bibliographical analysis of publications with their academic / scientific achievements. Earlier, a number of biobibliometric studies have been conducted in India on eminent persons 1-37. The present study has been undertaken to illustrate the achievements of Tejraj M. Aminabhavi through bibliographical analysis of his research contributions. Tejraj M. Aminabhavi was born on January 16, 1947 at Gadag in Karnataka State, India. He completed his early education in Gadag and later in Dharwad. Presently, he is serving as the Director of Centre of Excellence in Polymer Science, Karnatak University, Dharwad, India. He has 36 years of teaching experience and 28 years of research experience. During this time, he has associated with a number of prestigious universities in USA, France, South Korea and Taiwan. He has 521 research articles to his credit, published in reputed national and international journals with high impact factor. Interdisciplinary nature of his research work is reflected in his collaboration with faculty from various disciplines, working in prestigious institutions. He has made significant contribution in the field of polymer science in eight domains, viz., polymer solution thermodynamics, molecular transport through polymer membranes, polymers in drugs and pesticide delivery, polymer membranes in pervaporation separation, molecular modeling, polymer composites / polymer synthesis / polymer reviews, thermodynamics of liquid mixture, and coordination chemistry. Objectives of the study Main objectives of the present study were to analyze the data under following headings: 1. domainwise productivity of research articles, 2. contribution of popular articles and conference papers, 3. authorship pattern and collaboration coefficient, 4. chronological distribution of research articles vs authorship position, 5. domainwise collaboration,

128 ANN. LIB. INF. STU., JUNE 2008 Table 1 Domainwise productivity of research articles Number of authors A B C D E F G H Total % Total % no. of no. of papers authors One-Author 1 - - - - 1 6-08 01.53 08 00.45 Two-Authors 13 61 10 13 03 06 26 01 133 25.52 266 15.00 Three-Authors 08 39 39 14 03 20 36 12 171 32.82 513 29.06 Four-Authors 01 24 19 21 2 05 29 24 125 23.99 500 28.32 Five-Authors 03 11 14 12 03 06 05 03 57 10.94 285 16.14 Six-Authors 04 01 04 01-03 01-14 02.68 84 04.75 Seven-Authors 01-01 01-01 - - 04 00.76 28 01.58 Eight-Authors - - 01 02-01 01-05 00.95 40 02.26 Nine-Authors - 01 01 - - - - - 02 00.38 18 01.01 Ten-Authors - - - - - - - - - - - - Eleven-Authors - - 01 - - - - - 01 00.19 11 00.62 Twelve-Authors - - 01 - - - - - 01 00.19 12 00.57 Total 31 137 91 64 11 43 104 40 521 100 1765 100 Percentage 5.95 26.29 17.46 12.28 2.11 8.25 19.9 7.57 100 Collaboration 0.97 1.0 1.0 1.0 1.0 0.97 0.94 1.0 Coefficient Average Authors 3.26 3.00 3.89 3.78 3.64 3.63 3.08 2.73 Per Paper A - Polymer solution thermodynamics, B - Molecular transport through polymer membranes, C - Polymers in drug and pesticide delivery, D - Polymer membranes in pervaporation separation, E - Molecular modeling, F - Polymer composites / Polymer syntheses / Polymer reviews, G - Thermodynamics of liquid mixtures, and H - Coordination Chemistry 6. core journals used for publishing research articles, and 7. countrywise distribution of journals. Methodology Complete information about the academic and research achievements of T.M. Aminabhavi was collected. T.M. Aminabhavi has published 521 research articles in 28 years of his research career, i.e. during 1979 to 2006. In addition, he has 94 conference papers, 57 popular articles and a textbook in polymer science to his credit. The data were analyzed to meet the objectives of the study. Discussion Domainwise productivity of research articles Table 1 shows domainwise productivity of research articles by T.M. Aminabhavi during 1979 2006. Maximum number of research articles (137 articles 26.29%) was published in the domain of molecular transport through polymer membranes, followed by 104 articles (19.96%) in thermodynamics of liquid mixtures. Polymers in drug and pesticide delivery (91 articles 17.46%) and polymer membranes in pervaporation separation (64 articles 12.28%) are the other two domains where significant contributions have been made. That is, 76% of the total research articles were published in these four domains of polymer science. T.M. Aminabhavi has single-authored eight research articles in three domains, while the remaining 513 papers were co-authored with scientists from India and other countries. Two, three and four authored articles constitute 82.3% of the total research articles published. Collaboration coefficient is between 0.9 and 1.0 in all the domains. This indicates that the collaborative trend is near total in all the domains. Average number of authors per paper is 3.3.

PARVATHAMMA & GOBBUR: T.M. AMINABHAVI: A BIOBIBLIOMETRIC STUDY 129 Table 2 Productivity of popular articles No. of authors Total No. of Percentage Total no. Percentage papers of authors One-Author 3 5.26 03 1.57 Two-Authors 17 29.82 34 17.80 Three-Authors 22 38.6 66 34.55 Four-Authors 03 5.26 12 6.28 Five-Authors 06 10.53 30 15.70 Six-Authors 03 5.26 18 9.42 Seven-Authors - - - - Eight-Authors 01 1.75 08 4.19 Nine-Authors 01 1.75 09 4.71 Ten-Authors - - - - Eleven-Authors 01 1.75 11 5.76 Twelve-Authors - - - - Total 57 99.98 191 99.98 Collaboration co-efficient 0.94 Average Authors Per Paper 3.38 Contribution of popular articles and conference papers Productivity of popular articles and conference papers are given in Tables 2 and 3. Collaboration coefficient is 0.94 in both the types of publications. Average authorship per paper is 3.38 and 3.22 for popular articles and conference papers, respectively. Chronological distribution of research articles T.M. Aminabhavi published his first research article in 1979 and latest research article in 2006, between 32 and 59 years of age. He has published maximum of 96 research articles (18.43%) in 2006. He has consistently published between 20 and 27 articles during 1991-1996. He is either the second, third or the fourth author in 423 papers (81.19%) (Table 4). Domainwise collaboration 1656 researchers have collaborated with T.M. Aminabhavi in 521 research papers during the 28 years of his research career (1979 2006). Table 5 shows the list of collaborators and the years of collaboration. Large number of collaborators is found in the domains of molecular transport through polymer membranes, polymers in drug and pesticide delivery, thermodynamics of liquid mixtures and polymer membranes in pervaporation separation. Aminabhavi has published 291 papers (23%) with first five authors between 1981 and 2006. The period of international collaboration is significant with W.E. Rudzinski (22 years), Patrick E. Cassidy (15 years), J.D. Ortego (12 years) and T.H.S. Phayde (05 years). Indian collaborators with more than 15 years of association are Manjeshwar (21 years), S.B. Halligudi (19 years) and M.I. Aralaguppi (16 years). Core journals used to publish research articles Table 6 shows that largest number of research articles were published in the journal, Journal of Applied Polymer Science (102 articles 19.6%). 368 research papers (70.63%) were published in 19 journals. Among these 19 journals, 13 are being published in USA. Remaining 153 papers were published in 75 journals. Countrywise distribution of journals Table 7 shows countrywise distribution of journals in which 521 research articles were published. A majority of 326 articles (62.57%) were published in journals of USA, followed by Indian journals, with 61 papers

130 ANN. LIB. INF. STU., JUNE 2008 Table 3 Productivity of conference papers No. of authors Total no. of Percentage Total no. of Percentage papers authors One-Author 05 05.31 05 01.65 Two-Authors 16 17.02 32 10.56 Three-Authors 44 46.80 132 43.56 Four-Authors 17 18.08 68 22.44 Five-Authors 08 08.51 40 13.20 Six-Authors 02 02.13 12 03.96 Seven-Authors 02 2.13 14 04.62 Total 94 99.98 303 99.99 Collaboration Coefficient 0.94 Average Authors Per Paper 3.22 Table 4 Chronological distribution of research articles Authorship position APL Year 1 st 2 nd 3 rd 4 th 5 th 6 th 7 th 8 th 9 th 10 th 11 th MT TP AA 01 1979-03 - - - - - - - - - 03 03 32 02 1980-01 - - 01 - - - - - - 02 02 33 03 1981-02 03 - - - - - - - - 05 05 34 04 1982-05 02 01 - - - - - - - 08 08 35 05 1983 04 03 04 07 02-01 - - - - 17 21 36 06 1984 01 01 06 06 - - - - - - - 13 14 37 07 1985 01 01 04 05 02 - - - - - - 12 13 38 08 1986-06 - 04 02 - - - - - - 12 12 39 09 1987 01 03 07 01 01 - - - - - - 12 13 40 10 1988 01 01 03 03 01 - - - - - - 08 09 41 11 1989-01 05 02 - - - - - - - 08 08 42 12 1990-08 09 03 02 - - - - - - 22 22 43 13 1991-10 08 06 02 01 - - - - - 27 27 44 14 1992-09 06 02 02 01 - - - - - 20 20 45 15 1993-10 07 08 02 - - - - - - 27 27 46 16 1994-13 04 05 02 01 - - - - - 25 25 47 17 1995-12 02 05 01 - - - - - - 20 20 48 18 1996-02 11 06 02 - - - - - - 21 21 49 19 1997-04 05 03-01 - - 01 - - 14 14 50 20 1998-10 - 02-01 - 01 - - - 14 14 51 21 1999-04 13 03 02 - - - - - - 22 22 52 22 2000-04 05 04 03 - - - - - - 16 16 53 23 2001-03 08 06 01 - - - - - - 18 18 54 24 2002-02 07 02-02 - - - - - 13 13 55 25 2003-01 08 02 02 - - - - - - 13 13 56 26 2004-04 06 03 01 - - - 01 - - 15 15 57 27 2005-02 06 06 09 04-01 - 01 01 30 30 58 28 2006-08 26 30 21 05 03 03 - - - 96 96 59 Total 08 133 165 125 61 16 04 05 02 01 01 513 521 APL = Age of Productive Life, TP of Author = Total Publications, MT = Total Multi-authored Publications, AA = Biological Age

PARVATHAMMA & GOBBUR: T.M. AMINABHAVI: A BIOBIBLIOMETRIC STUDY 131 Table 5 Domainwise collaboration Domainwise Collaboration Rank Name of the collaborator A B C D E F G H Period of Total association years 01 Aminabhavi T.M. 31 137 91 64 11 43 104 40 1979-2006 28 02 Rudzinski W.E. 01 03 07 - - 02-15 1982-2003 22 03 Manjeshwar L.S. 04 03-02 - - 15-1986-2006 21 04 Halligudi S.B. - - 03 02 06 03 04-1988-2006 19 05 Aralaguppi M.I. 02 05 02 01-01 02-1990-2005 16 06 Cassidy P.E. - 14 - - - 14 - - 1981-1995 15 07 Balundagi R.H. 06 16 01 - - 03 03-1986-1999 14 08 Ortego J.D. - 20 - - - - - 02 1987-1998 12 09 Harlapur S.F. 01 16 01 - - 01 - - 1987-1998 12 10 Aithal U.S. - 19-01 - 01 - - 1983-1991 09 11 Kulkarni A.S. 02-04 - - - - - 1999-2006 08 12 Soppimath K.S. 02-03 01 - - - - 1999-2006 08 13 Biradar N.S. - - - - - 08-35 1981-1987 07 14 Kariduraganavar M. 02 05 01 03 - - - - 2000-2006 07 15 Naik H.G. 02 11-03 - - 01-1997-2006 06 16 Shukla S.S. - 06 - - - 02 07-1988-1991 06 17 Phayde H.T.S. - 23 - - - - 09-1993-1997 05 18 Harogoppad S.B. - 16-01 - - 07-1990-1994 05 19 Joshi S.S. 01 - - - - - 14-1988-1992 05 20 Toti U.S. 03-02 07 - - 01-2000-2004 05 21 Munnolli R.S. - 13 - - - - - - 1992-1996 05 22 Patil R. C. 04 - - - - 03 04-1981-1985 05 23 Khinnavar R.S. - 14-01 - - 08-1991-1994 04 24 Roddabasanagouda V.L. - - - - - - - 13 1984-1987 04 25 Dave A.M. - - 12 - - - - - 1999-2003 04 26 Naidu B.V.K. 03 08 05 13 - - - - 2004-2006 03 27 Mallikarjun N.N. 02 07 10 04 01 04 - - 2004-2006 03 28 Sridhar S. - - - 18 - - - - 2004-2006 03 29 Agnihotri S.A. - - 16 - - - - - 2004-2006 03 30 Kumbar S.G. 01-11 01 - - 01-2001-2003 03 31 Sairam M. 02-13 15 03 02 01-2005-2006 02 32 Karajagi G.V. - - - - - - - 10 1983-1986 02 No. of authors with 01 31 69 112 97 21 74 47 60 One publication each Total authoship 100 423 294 233 42 161 228 175 1656 Percentage of authorship 6.03 25.5 17.8 14.1 2.5 9.7 13.8 10.6 99.99 Rank 7 1 2 3 8 6 4 5 A - Polymer solution thermodynamics, B - Molecular transport through polymer membranes, C - Polymers in drug and pesticide delivery, D - Polymer membranes in pervaporation separation, E - Molecular modeling, F - Polymer composites / Polymer syntheses / Polymer reviews, G - Thermodynamics of liquid mixtures, and H - Coordination chemistry

132 ANN. LIB. INF. STU., JUNE 2008 Table 6 Core journals used to publish research articles Rank Name of the journal No. of Cumula- Cumula- Period Country papers tive no. tive published of papers percentage 01 Journal of Applied Polymer 102 102 19.57 1989-2006 USA Science 02 Journal of Chemical and 65 157 32.05 1982-2005 USA Engineering Data 03 Indian Journal of Chemistry 35 202 38.77 1990-2006 India 04 Polymer-Plastics Technology 20 222 42.61 1987-2002 USA & Engineering. 05 Journal of Membrane Science 19 241 46.25 1990-2006 USA 06 Indian Journal of Technology 15 256 49.13 1990-1993 India 07 Polymer 14 270 51.82 1986-2006 USA 08 Journal of Macromolecular 13 283 54.31 1981-1984 USA Science Reviews. 09 Journal of Hazardous 11 294 56.42 1991-2002 USA Materials 10 Drug Development and 09 303 58.15 2000-2006 USA Industrial Pharmacy 11 Carbonate Polymers 08 311 59.69 2005-2006 Amsterdam Proceedings of Int. Symposium. 08 319 61.22 1999-2001 USA On Controlled Release of Bioactive Materials 13 Journal of Controlled Release 08 327 62.76 2000-2005 USA 14 Journal of Macro 08 335 64.29 2000-2004 UK Encapsulation 15 Journal of Macromolecular 07 342 65.64 1982-1986 USA Science Chemistry 16 Designed Monomers And 07 349 66.98 1998-2006 USA Polymers 17 Inorganic Chemistry & 07 356 68.33 1982-1987 Italy Bioinorganic Chemistry 18 Journal of Chemical Education 06 362 69.48 1986-1995 USA 19 Reactive and Functional 06 368 70.63 2006 UK Polymers 06 Journals in which 05 articles 30 398 76.39 1979-2006 USA & UK each were published 06 Journals in which 04 articles 24 422 80.99 1983-2005 USA, India, Israel each were published and Italy 09 Journals in which 03 27 449 86.18 1982-2006 India, USA, articles each were published Germany & France 18 Journals in which 02 articles 36 485 93.09 1981-2006 India, USA, each were published UK,Canada, Netherlands, Czeck Republic & Italy 36 Journals in which 01 article 36 521 100 1979-2006 UK, USA, Canada, each was published India, Japan & Italy

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