International Journal of Library and Information Studies ... · Y. L. SOMASHEKARA Research Scholar Department of Library & Information Science University of Mysore Manasagangothri,

International Journal of Library and Information Studies Vol.5 (1) Jan-Mar, 2015 ISSN: 2231-4911

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CITATION ANALYSIS OF DOCTORAL THESES: AN ANALYSIS OF PHYSICS THESES SUBMITTED TO THREE UNIVERSITIES OF

KARNATAKA, INDIA.

Y. L. SOMASHEKARA Research Scholar

Department of Library & Information Science University of Mysore

Manasagangothri, Mysore-06 E-mail: [email protected]

Prof. MALLINATH KUMBAR

Professor Department of Library & Information Science

University of Mysore Manasagangothri, Mysore-06

e-mail: [email protected]

ABSTARCT

The present paper analysis of the Physics doctoral theses submitted to three universities in Karnataka. This study covers 7728 citations. The study indentify that journal article resource is 5978 (78%) fallowed Books 854 (11%). The reseaecher determine the subject wise distribution of citations, Ranking of Journal source, Bradford law of scattering, Bradford Zones and Journal productivity aspects. Keywords: Physics Theses, Citation analysis, Journal ranking.

INTRODUCTION Citation analysis is one of the techniques of bibliometric. Citation analysis is used for the study of the properties and behaviors of recorded knowledge. It is an important research tool for understanding the subject, which we analyze the structure and direction of the subject Citation analysis involves the where the unit of analysis is a document is being cited as a bibliographic references or a foot note in a citing document. The main function of citations is to establish a relationship between the citing and cited documents. Citation analysis is an accepted method for studying the way scholarly for collection development and quality analysis. LITERATURE REVIEW Rahman, Md. Ziaur and Bhattacharya, Udayan (2013) evaluates and studied Ph.D. theses in physics, submitted to the North Bengal University Darjeeling, West Bengal during 1987 to 2007. This study aims to determine the year wise distribution of theses, the guide ship pattern, to determine the most productive guides and average number of citations per theses. The study presents the trends in authorship pattern and collaborative research in physics. Journals and Books/monographs were the two formats that were most frequently cited in Physics (81.76% and 8.34%). The ratio between single and multi-authored papers is approximately 1:3. The degree of


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collaboration in physics is 0.774. The study indicates that maximum references were used during the year of 1980-1989. Journals published in India, USA, United Kingdom and the Netherlands are popular among the University science researchers. The most frequently cited journal titles were The Physics Letter, Physics Review A, Mol. Cryst. Liq. Crystal. K G Sudhier (2011) studied University of Kerala Physics Department theses during 1999-2003, It was observed that journals and books are the most preferred bibliographic form of citations used by the physicists, and they are 82.08% and 12.92% respectively. K. G. Sudhier (2010) Researcher studied of the five years data of journals cited by the physicists at the University of Kerala India has been carried out to examine the applicability of Bradford’s law of scattering on a sample of 303 journals containing 2655 citations collected from 12 doctoral theses during the period 2004-08. Ranked list of journals are prepared, and the most preferred journal is Journal of Geophysical Research with the highest of 345 (12.97%) citations Gururaj S Hadagali, B D Kumbar and Amrut Benahal (2009) researcher analyzed Physics theses submitted to Karnatak University, Dharwad during 1992–2006. They studied 10, 057 citations given in the references in the 37 theses. Journal of Chemical Physics ranked first among 548 journals. It is found from the study that Half-life period of journals is 33 years. Mini Devi (2007) her paper “A New derivation for Bradford’s Law of Scatter” highlights the significance of Bradford’s Law in today’s information age. The classical law is applied to the toxicology literature collected from the international database, toxicology information online (TOXLINE), and its validity on that was tested. The data was found unfit for the law. Hence a new formula is derived and applied which was found fit for the study OBJECTIVE OF THE STUDY The researcher has established the fallowing objectives

1. To analyze the total citation of theses 2. To determine the forms of literature used in physics theses 3. To analyze the university wise forms of literature used in Physics theses. 4. To established the subject wise distribution of citations. 5. To organize the physics journal ranking 6. To establish the India and other country distribution journal citations 7. To analyze the Bradford’s law of scattering. 8. To evaluate the productivity of physics journal citations

METHODOLOGY AND SAMPLES The literature cited in Ph.D. theses in the field of physics was the base of information for the study. In this context the main objective of the study examined the citation pattern of researchers in Physics using the references append of Ph. D. theses submitted to the three universities in Karnataka that are University of Mysore, Karnatak University, and Bangalore University during the year 2006-2010. Around 7728 citations of 49 theses and average are 158 citations of each


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thesis. The data was tabulated in terms of subject wise distribution journal citations, book citations are studied. The ranking of journal titles are analyzed ANALYSIS AND DISCUSSION Analysis of data is the ultimate step of research process. It is inspecting, cleaning, transforming, and modeling data with the goal of discovering useful information and suggesting conclusions. It is the link between raw data and conclusions Year wise Distribution of Physics Theses The attempt was made to analyze the Physics theses in predefined years. The table 1 shows the year wise available theses and analyzed theses.

Table 1- Year wise analyzed theses of Zoology Year Analysis

Theses Cumulative Theses

Percentage Cumulative percentage

2006 06 06 12.25 12.25 2007 09 15 18.36 30.61 2008 09 24 18.36 48.97 2009 11 35 22.45 71.42 2010 14 49 28.58 100.00 Total 49 100.00

The Table -1 reveals that the theses in 2010 (28.58%) fallowed 2009 (22.45%), and 2008 (18.36%), 2006 (12.25%). Three Universities of Karnataka wise Physics theses and Citations distribution The study explained the physics theses of three universities of Karnataka, citation distribution determined in table 2.

Table 2- University wise Physics theses citations Sl. no

Universities Theses Citations Cumulative Citations

Percentage Cumulative Percentage

1 University of Mysore 19 2774 2774 35.89 35.89 2 Karnatak University 16 2469 5243 31.95 67.84 3 Bangalore University 14 2485 7728 32.16 100.00 Total 49 7728 100.00

The Table-2 state that University of Mysore 2774(35. 89%) fallowed Bangalore University 2468 (35.723%) and Karnatak University 2469 (31.95%), It is shows the University of Mysore Physics researcher cited references are very high compare to Bangalore university researcher. Bibliographical forms distribution of citations The researcher most important resources are books and journals but present days the resources type are distributed different forms that are journals, books, theses reports, manuals, technical

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Table 4 Three University wise physics citations bibliographical forms of distribution

University Journals Books Conf. Proc.

Theses Reports Reference E-

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UOM 2124 264 169 38 45 39 18 77 2774 35.90 KU 1849 317 135 37 29 35 15 52 2469 31.95 BU 2005 273 126 21 19 0 30 11 2485 32.15 Total 5978

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(1.81%) 7728 100

Table 4 reveals that University of Mysore (UOM), Karnatak University (KU) and Bangalore University (BU). The three Universities physics researcher mainly depend Journal articles (77.35%) fallowed Books (11.05%), Conference Proceedings (5.56%), Theses (1.24%), Reference document (0.95%). The e-resource (0.81%) and other document (1.81%) respectively. The Mysore university Physics (35.53%) researcher cited Journals is the highest fallowed Bangalore University (2005) and Karnatak University (1849). The table 4 it also reveals that the highest percentage cited in physics theses of University of Mysore (35.90%) fallowed Bangalore University (32.15%) and Karnatak University (31.95%). Subject wise distribution of citations The physics researcher of three universities of Karnataka cited different subject resource. Researcher divided according to Dewey decimal classification system main class numbers. The table 5 is state the details.

Table -5 DDC classification wise distributions of citations DDC

Class No. Subjects Citations

Cumulative citations

Percentage Cumulative Parentage

100-199 Philosophy & Psychology

8 8 0.103 0.103

300-399 Social Science 13 21 0.168 0.271 500 -599 Science 6984 7005 90.373 90.644 600-699 Applies Science &

Medical Science 721 7726 9.331 99.975

900-999 History and Geography 2 7728 0.025 100.000 Total 7728 100.00

The table 5 reveals that physics researcher cited science documents (90.373%) fallowed Applied Science and Medical science (9.331%), Social science (0.168%). It indicates physics researcher highly referred source are Science, Applied science & Medical Science (99%) subjects. Physics journal ranking and Bradford’s law of scattering and application of Journals The study of core journal or journal ranking based on usage of physics theses (2006 to 2010) journal citations of three universities of Karnataka are explained.

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8 Nuclear Physics A 8 95 1153 1.59 19.28 Netherlands

9 Journal of applied Crystallography

9 93 1246 1.56 20.84 UK

10 Current science 10 91 1337 1.52 22.36 India

11 Journal of Inorganic Nuclear Chemistry

11 82 1419 1.37 23.73 USA

12 Acta Crystallographica E 12 81 1500 1.35 25.08 UK 13 Physical review letters 13 78 1578 1.30 26.38 USA

14 Radiation physics & chemistry

13 78 1656 1.30 27.68 USA

15 Health physics 14 74 1730 1.24 28.92 USA 16 Indian journal of physics 15 72 1802 1.20 30.12 India 17 Journal of limnology 15 72 1874 1.20 31.32 Netherlands 18 Spectrochimica acta 16 64 1938 1.07 32.39 Netherlands 19 Indian journal of chemistry 17 62 2000 1.04 33.43 India 20 Physics letter B 18 61 2061 1.02 34.45 Holland

21 Journal of environmental radioactivity

19 60 2121 1.00 35.45 UK

22 Journal of the Chemical Society Faraday Transaction

20 59 2180 0.99 36.44 UK

23 Nature 20 59 2239 0.99 37.43 UK

24 Journal of science & industrial research

21 58 2297 0.97 38.40 India

25 Science 22 51 2348 0.85 39.25 USA

26 Proceedings of Indian academy of science

23 48 2396 0.80 40.05 India

27 Nuclear instrument & methods in physics research: section A

24 47 2443 0.79 40.84 Netherlands

28 The Astrophysical journal 25 46 2489 0.77 41.61 UK 29 Macromoleculus 25 46 2535 0.77 42.38 USA

30 Applied radiation and isotopes

26 45 2580 0.75 43.13 UK

31 Acta Crystallographica B 27 43 2623 0.72 43.85 UK 32 Radiation chemical physics 28 42 2665 0.70 44.55 UK 33 Signal processing 29 41 2706 0.69 45.24 Netherlands 34 Spine 30 40 2746 0.67 45.91 USA 35 Physical Review D 30 40 2786 0.67 46.58 USA 36 Chemical Physics 31 39 2825 0.65 47.23 Netherlands 37 Chemical physics letter 31 39 2864 0.65 47.88 Netherlands 38 Nuclear Physics B 32 38 2902 0.64 48.52 Netherlands

39 Acta Crystallographica C Structural chemistry

32 38 2940 0.64 49.16 UK

40 Physica B- Condensed matter 33 37 2977 0.62 49.78 Netherlands 41 Nuclear Physics D 33 37 3014 0.62 50.04 Netherlands 42 Journal of molecular biology 33 37 3051 0.62 51.02 USA 43 Surface Science 34 36 3087 0.60 51.62 Netherlands 44 Physica status solidi a 34 36 3123 0.60 52.22 USA

45 Proceedings of academy of science USA

35 35 3158 0.59 52.81 USA

46

Specrtochimica acta part a molecular & bimolecular spectroscopy

35 35 3193 0.59 53.40 Netherlands

47 Bulletin of the chemical society

36 34 3227 0.57 53.97 Japan

48 Reviews of Modern Physics 36 34 3261 0.57 54.54 USA

49 Indian journal of pure & applied science

37 33 3294 0.55 55.09 India

50 Journal of Material Science 38 32 3326 0.54 55.63 Netherlands


27

51 Journal of inorganic nuclear chemistry

38 32 3358 0.54 56.17 Netherlands

52 Journal of Physical Chemistry – A

38 32 3390 0.54 56.71 USA

53 Journal of physics D Applied Physics

39 31 3421 0.52 57.23 UK

54 The International Journal of Applied Radiation Isotopes

39 31 3452 0.52 57.75 Netherlands

55 Applied journal 39 31 3483 0.52 58.27 India 56 Biophysical journal 40 30 3513 0.50 58.77 USA 57 Nucleic acid research 40 30 3543 0.50 59.27 UK

58 Science technology and Advanced materials

41 29 3572 0.49 59.76 UK

59 Journal of crystal growth 41 29 3601 0.49 60.25 Netherlands 60 Spectroscopy letter 41 29 3630 0.49 60.74 UK

61 AFS International cast metal Journal

41 29 3659 0.49 61.23 USA

62 Radiation measurements 41 29 3688 0.49 61.72 Netherlands

63 International journal of thermodynamics

42 28 3716 0.47 62.19 Turkey

64 Astronomy & astrophysics 42 28 3744 0.47 62.66 France

65 Journal of molecular structure

42 28 3772 0.47 63.13 Netherlands

66 Journal of chemical physics letters

43 27 3799 0.45 63.58 Netherlands

67 Journal of condensed matter Nuclear science

43 27 3826 0.45 64.03 France

68 Journal of geophysical research

43 27 3853 0.45 64.48 USA

69 Radiation physics & Chemistry

44 26 3879 0.43 64.91 UK

70 Journal of Physics G Nuclear Particle Physics

44 26 3905 0.43 65.34 UK

71 Faraday discussion 44 26 3931 0.43 65.77 UK 72 Journal of Thermodynamic 45 25 3956 0.42 66.19 Egypt

73 Journal of molecular spectroscopy

45 25 3981 0.42 66.61 USA

74 X ray spectrum 46 24 4005 0.40 67.01 UK 75 Synthetic metals 47 23 4028 0.38 67.39 76 IEEE signal processing letter 48 22 4050 0.37 67.76 USA 77 Physics letter B Section 48 22 4072 0.37 68.13 Netherlands 78 American journal of physics 49 21 4093 0.35 68.48 USA

79 Materials Science and Engineering: R: Reports

49 21 4114 0.35 68.83 Netherlands

80 Applied optics 49 21 4135 0.35 69.19 USA 81 Journal of Polymer Science 50 20 4155 0.33 69.51 USA

82 Journal of Nanoscience & nanotechnology

50 20 4175 0.33 69.84 USA

83 Radiation protection Dosimentry 50 20 4195 0.33 70.13 UK

84 Atmospheric environment 50 20 4215 0.33 70.50 UK 85 Journal of Isotopes 51 19 4234 0.32 70.82 China 86 Synthetic Communication 51 19 4253 0.32 71.14 UK 87 Canadian journal of physics 51 19 4272 0.32 71.46 Canada 88 Applied physics letters 51 19 4291 0.32 71.78 USA

89 Journal of the physical society of Japan

52 18 4309 0.30 72.08 Japan

90 Applied surface science 52 18 4327 0.30 72.38 Netherlands 91 IEEE Transaction nuclear 52 18 4345 0.30 72.68 USA


28

science

92 The Astrophysical journal letters

52 18 4363 0.30 72.98 UK

93 Nucleic Acids Research 52 18 4381 0.30 73.28 UK

94 International journal of thermodynamics

53 17 4398 0.28 73.56 Turkey

85 Bulletin of the chemical society

53 17 4415 0.28 73.84 Japan

96 European polymer journal 53 17 4432 0.28 74.12 Netherlands 97 Astrophysics journal 53 17 4449 0.28 74.40 UK

98 Journal of light wave technology

54 16 4465 0.27 74.67 USA

99 IEEE transaction on image processing

54 16 4481 0.27 74.94 USA

100 Journal of Raman spectroscopy

54 16 4497 0.27 75.21 UK

101 Nanotechnology 55 15 4512 0.25 75.46 UK

102 Physics in medicine and Biology

55 15 4527 0.25 75.71 UK

103 Aviation space and environmental medicine

55 15 4542 0.25 75.96 USA

104 Biopolymers 56 14 4556 0.23 76.19 USA

105 Acta Crystallographica D biological Crystallography

56 14 4570 0.23 76.42 UK

106 Biophysical chemistry 57 13 4583 0.22 76.64 Netherlands 107 Condensed matter physics 57 13 4596 0.22 76.86 Ukraine

108 Polymer engineering and science

58 12 4608 0.20 77.06 USA

109 Transactions of American Foundry society

58 12 4620 0.20 77.26 USA

110 Journal of the Korean physical society

58 12 4632 0.20 77.46 Korea

111 FEBS Letters 58 12 4644 0.20 77.66 Germany 112 Bioinformatics 58 12 4656 0.20 77.86 UK

113 IEEE Transaction on Magnetics

58 12 4668 0.20 78.06 USA

114 Radiation Effects and Defects in Solids

59 11 4679 0.18 78.24 USA

115 Journal of applied physiology 59 11 4690 0.18 78.42 USA

116 Indian Journal of Aerospace Medicine

59 11 4701 0.18 78.60 India

117 Ergonomics 59 11 4712 0.18 78.78 UK

118 Journal of the Electrochemical Society

59 11 4723 0.18 78.96 USA

119 Journal of Biomechanics 60 10 4733 0.17 79.13 UK 120 Vibrational spectroscopy 60 10 4743 0.17 79.30 Netherlands

121 Journal of Magnetism & Magnetic Materials

60 10 4753 0.17 79.47 Netherlands

122 European Journal of Applied Physiology

60 10 4763 0.17 79.64 Germany

123 Journal of Optical Society of America

60 10 4773 0.17 79.81 USA

124 Journal of Fluid Mechanic 61 9 4782 0.15 79.96 UK 125 Protein Science 61 9 4791 0.15 80.11 USA 126 Optics Letters 61 9 4800 0.15 80.26 USA 127 Annals of Physics 61 9 4809 0.15 80.41 Netherlands 128 Applied Physics Letters 61 9 4818 0.15 80.56 USA

129 Progress in Particle Nuclear Physics

62 8 4826 0.13 80.69 Netherlands


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130 Surface science 62 8 4834 0.13 80.82 Netherlands

131 Journal of Physical Chemistry B

62 8 4842 0.13 80.95 USA

132 Physics Reports 62 8 4850 0.13 81.00 Netherlands

133 International Journal of Modern Physics

62 8 4858 0.13 81.21 Singapore

134 Clinical Biomechanics 62 8 4866 0.13 81.34 UK 135 Nanostructured Materials 63 7 4873 0.12 81.46 Netherlands

136 Annual Review of Astronomy Astrophysics

63 7 4880 0.12 81,58 USA

137 Rubber Chemistry and Technology

63 7 4887 0.12 81.70 Vienna

138 Atomic Energy Review 63 7 4894 0.12 81.82 USA 139 Geophysical Research Letters 63 7 4901 0.12 81.94 USA 140 Tensor 63 7 4908 0.12 82.06 Japan

141 Journal of Applied Mathematics & Physics

63 7 4915 0.12 82.18 USA

142 Macromolecules 63 7 4922 0.12 82.30 USA

143 Journal of Engineering Mathematics

63 7 4929 0.12 82.42 USA

144 Rheologica Acta 63 7 4936 0.12 82.54 Berlin 145 Acta Physicsa Polonica. 64 6 4942 0.10 82.64 Poland 146 Pure and Applied Geophysics 64 6 4948 0.10 82.74 Berlin

147 Journal of Radiation Protection

64 6 4954 0.10 82.84 UK

148 Journal of Chemical Society Parkinson Transaction 2

64 6 4960 0.10 82.94 UK

149 International Journal of Low Radiation

64 6 4966 0.10 83.04 Olney

150 Zeitschrift fur Physik A 64 6 4972 0.10 83.14 Germany

151 International Materials Reviews

64 6 4978 0.10 83.24 UK

152 31 journals 5 citations 65 155 5133 2.59 85.83 153 37 journals 4 citations 66 148 5281 2.47 88.30 154 32 journals 3 citations 67 96 5377 1.62 89.92 155 72 Journals 2 Citations 68 144 5521 2.42 92.34 156 457 journals Single Citation 69 457 5978 7.66 100.00

Total 5978 100.00

Table 9 demonstrates that ranking of journals by counting of referred and cited in physics theses. The 5978 journal articles are cited in physics theses and scattered 780 journal titles. However, the top twelve journals covered twenty five percentages of citations. The United State of America (USA) published journals Journal of Chemical Physics, (237), Journal of applied physics (182), and Holland published journal title Nuclear instrument methodology B (169) is top three journals. The Indian publication journal title Indian journal of applied physics (97) ranked top seventh title and Current science is ranked within tenth title of ranked list. The place of publication data is identified form Ulrich periodical directory, online database resources, OCLC World Cat web of science, J-Gate journal portal sources. These types of journals ranking can be used by libraries because based on this report libraries to select the journals and maintain budget management. In this regard it helps greater importance to library function.


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Productivity of Physics journal citations The productivity of journal articles referred highest and average is explained in table 10 that are 0 to 25 % to 100% is divided and evaluated the productivity of journals.

Table 10 Productivity Journals of physics source

Percentage of Citations

No. of Citations

No. of Journals covered

Percentage of Journals

Average of production of

journals 0 to 25 1500 12 1.54 125

26 to 50 1514 28 3.59 54.07 51 to 75 1483 59 7.57 25.13 76 to 100 1481 681 87.30 2.17

5978 780 100.00 7.66 It is observed table 10 the first groups of citations is to 12 journals, thus signifying their high rate of productivity. The average productivity of each journal in the first group (0 to 25 %) it was 85.18 articles, where it has considerably gone down to 2.71 articles in the fourth category (76 to 100 %). This marked easily confirms the decreasing confirms the decreasing productivity. India and other countries journal publication distribution The physics researcher cited journal references place of publication are geographically distributed India and foreign countries it is explained table 11 and figure 4.

Table 11 India V/s other countries journal publication distribution Serial No Geographical distribution Citations Percentage

1 India 503 8.44 2 Other Countries 5475 91.56

Total 5978 The table 11 reveal that India (503) citations of total citations other countries (5475). It shows that India science journal publications also very informative and qualitative for reference but the developed country publication very dominated in journal publication. Bradford’s law of scattering physics journal citations Bradford’s law states that “if scientific periodicals are arranged in order of decreasing productivity of articles on a given subject that may be divided into a nucleus of periodicals more particularly devoted to the subject and several groups of zones containing the same number of articles as the nucleus when the number of periodicals in the nucleus and succeeding zones will be as 1:n:n2” where ‘n’ is a multiplier. Implementation of Bradford’s law The observation of the appropriateness of the distribution of journals using the verbal formulation of Bradford’s Law, the fallowing explanations were made and the results were


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presented. The first part deals with the verbal formulation of the theory based on the data consisting of whole journal references arranged by their decreasing frequency of citations, while the second part examines the graphical representations based on the same data. Verbal formulation The number of cited journals has been arranged by decreasing number of citations. To test the verbal formulation of Bradford’s multiplier factor was arrived at by dividing journals of a zone by its preceding zone. Bradford’s multiplier was expressed as the ratio of the number of journals in any group to the number of journals in any immediately presiding group. The basis for choosing the three zones was that the percentage error in distribution of citations, among the three zones should be minimum citations. The distribution of journals and corresponding number of citations in the three zones table along with the value of Bradford’s multipliers are shown in table no. 12.

Table 12 Bradford Zone scattering of journals citations

Zones Number of Journals

Percentage of Journals

Number of Citations

1 19 2.44% 2000 2 55 7.05% 2005 3 706 90.51 1973

Total 780 100 5978

Figure 5 Bradford zones of scattering physics journal title

The present table 12 and figure 5 shows that it was observed that 19 journals in nucleus and they are the most productive journals devoted to physics sharing 2.43% of total cited journals. The next zone represented by 55 journals (7.05%). The last zone represented 706 journals which share 90.51% of total cited journals. Each zone has approximately one-third of the total citations.


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Table 5.5 reveals the same results and hence the journal data fits well with Bradford’s law of distribution. Hence the journals distribution as per the Bradford’s Law reveals the ratio 19:55:706 According to Bradford’s the zones, thus identifies will form an approximately geometric series in the form 1: n: n2: But it was found that the relationship of each zone in the present study is 19:55:706 ratio. FINDINGS AND RESULT OF THE STUDY The analysis findings result on the basis of different variables.

1. This paper analyzed 7728 citation of 49 physics theses of three universities of Karnataka. 2. The average citations are 159 physics theses of three universities during 2006 to 2010. 3. The highest citations is University of Mysore 2774 (35. 89%) fallowed Bangalore

University 2485 (35.723%) and Karnatak University 2469 (31.95 4. Journal resources (77.36%) constituted the most frequently used form accounting for

citations of the total cited references. 5. The journal Citations University of Mysore (2124) fallowed Bangalore University (2005)

and Karnatak University (1849). 6. Physics researcher highly cited source subject is Science, Applied science & Medical

Science (99%). 7. The productivity of physics journal citation is the first groups of citations is to 12 (25%)

journals, thus signifying their high rate of productivity. 8. The researcher is depending and other developed country (5475) journal publications.

India journal (503) is also cited. 9. It was observed that 19 journals in nucleus they are the most productive journals devoted

to physics sharing 2.43% of total cited journals. The next zone represented by 55 journals (7.05%). The last zone represented 706 journals which share 90.51% of total cited journals.

10. The study confirms that the journal use pattern of physics researchers fits well with the Bradford’s Law of scattering ratio. The ratio is 19:55:706:

11. The findings of the study have grate implication for the need based collection development in the field of physics.

CONCLUSION The study covers 49 doctoral theses submitted to the department physics of three universities of Karnataka. The physics researchers are highest source used journals (77.36%). The Physics researcher also referred Indian journals title ranked 7th, 10th, and 16th. The first two ranks journal titles published USA and third rank is Holland published title. This study will help to physics researcher and University librarian for physics collection development activity. Not only the collection development it evaluates the resource usage and assessment of journal titles. It helps to manage the library budget. The physics researcher and librarian are very easy to identify the core journal in specific subjects.


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International Journal of Library and Information Studies ... · Y. L. SOMASHEKARA Research Scholar Department of Library & Information Science University of Mysore Manasagangothri,