181,454 research outputs found
INSPEC database analysis for Knowledge Management records
No full textThe study deals with the Knowledge Management papers covered in the INSPEC, an international database on Information Science, Physical Sciences, Engineering and Computer Sciences. The papers have been analysed in terms of their content and other scientometric parameters
Bibliographics for the 983 eprints in the live archives of E-LIS : trends and status report up to 7th July 2004, based on author-self-archiving metadata
No full textThe priority for ideas and philosophy related to "Network Theory" have been traced back and documented by Braun(2004),and credit goes to Karinthy(1929).The IT has empowered to realise it, as the most practical phenomena and it is no more a humour. The OAI (Open Archives Initiatives)and ACIS (Academic Contributor Information System)are progressive in the direction ,which may lead to realise the "Collective Genius" at global level. Focus of present study is on Author-Self-Archiving (A-S-A)Metadata of the 983 Eprints in the Live Archives of the E-LIS (EPrints of Library and Information Science),which were approved till 7th July 2004.The A-S-A Metadata was used for librametric analysis. Self-explanatory bibliographics are illustrated.The highlights include: Conference papers (34%); highest approval, June 2004 (28%); published archives (76%);not refereed (52%); not in public domain (60%); highest self-archiving-author (De Robbio, Antonella).The Nos. of EPrints having single JITA domain specifications were: Theoretical and general aspects of libraries and information(27); Information use and sociology of information(80);Users,literacy and reading(13);Libraries as physical collections(30);Publishing and legal issues(57);Management(13);Industry, profession and education(36);Information sources, supports, channels(113) ; Information treatment for information services, Information functions and techniques (101); Technical services libraries, archives and museums(25); Housing technologies(1); Information technology and library technology(92); and Inter-domainery (395) i.e. having specifications of two or more than two JITA classes
Responses of diversity, productivity, and stability to the Nitrogen input in a tropical grassland
No full textPresent data has been collected from an experimental tropical grassland located in Banars Hindu University, India using 72 1×1m plots with 6 N-input levels and with 12 replicates. The experiment was established in 2013. For three years, different doses of urea as a source of N were applied to the plots. Data on individuals and biomass of each species were recorded and statistically analysed. This study reports the effects of different levels of N application on species composition, and the diversity, Productivity, Temporal stability and their relationships
Responses of diversity, productivity, and stability to the Nitrogen input in a tropical grassland
No full textPresent data has been collected from an experimental tropical grassland located in Banars Hindu University, India using 72 1×1m plots with 6 N-input levels and with 12 replicates. The experiment was established in 2013. For three years, different doses of urea as a source of N were applied to the plots. Data on individuals and biomass of each species were recorded and statistically analysed. This study reports the effects of different levels of N application on species composition, and the diversity, Productivity, Temporal stability and their relationships
Indian Science & Technology Research: A scientometric Mapping Based on Science Citation Index
No full textThis paper attempts to analyse quantitatively the growth and development of Science and Technology research in India in terms of publication output as reflected in Science Citation Index (SCI) (1990-2004). Total of 182111 papers were published by the Indian scientists and engineers to various domains: Chemical Sciences (62856) (34.52%), Physical Sciences (53844) (29.57%), Medical Sciences (30143) (16.55%), Biological Sciences (18239) (10.02%), Multidisciplinary Sciences (8616) (4.73%), Agricultural Sciences (5461) (3.00%) and Geological Sciences (2952) (1.62%). The study also focused on the visualization of Indian contribution to various micro-domains: Chemistry-Multidisciplinary (10800), Organic Chemistry (10362), Materials Science-Multidisciplinary (8107), Multidisciplinary Sciences (7771), Physics-multidisciplinary (7112), Condensed Matter Physics (6938), Physical Chemistry (5931), and Biochemistry & Molecular Biology (5307). A total of 168 micro-domains were identified in which the scientific research in India is concentrated. A steady growth of publications was observed. The average number of publications per year were 12140.73. The highest number of publications (15414) were published in 2003. Single authored papers were 18224 (10%) and Multi-authored papers were 163887 (90%). Authorship and collaboration trend was towards multi-authored papers. Five hundred fifty nine papers had more than 100 authors each. There were 371 papers with 255 authors each and 51 papers with 225 authors each. Intensive international collaboration was found during the period and bilateral collaboration accounted for 13.67 percent of the total 31186 collaborative papers followed by trilateral collaboration with 2.27 percent. India had collaboration with 167 countries. The highest number of papers collaborated were 11869 with USA followed by 4640 papers with Germany, 3202 papers with England and 2988 papers with Japan. A comparative publication productivity between India and Peoples-R-China has been carried out. India was ahead of Peoples-R-China till 1996. Peoples-R-China out paced India in 1997. The highly productive Indian Institutes were: Indian Institute of Science, Bangalore with 10247 publications, Bhabha Atomic Research Centre, Mumbai with 6782 publications, Tata Institute of Fundamental Research, Mumbai with 5132 publications and Banaras Hindu University, Varanasi with 4487 publications. The most preferred journals by the scientists were: Current Science (6848), Indian Journal Chemistry-B (3566), Indian Journal Chemistry-A (3272) and Pramana (1904)
Shifting waterscapes: explaining basin closure in the Lower Krishna Basin, South India
No full textRiver basins / Ecosystems / Protective irrigation / Irrigation programs / Water transfer / Water distribution / Water allocation / Groundwater depletion / Aquifers / Water scarcity / Water use / Drought / India / Lower Krishna Basin / Godavari Basin / Nagarjuna Sagar Project / Kolleru Lake
Scientometric Portrait of Homi Jehangir Bhabha: The Father of Indian Nuclear Research Programme
No full textQuantitative and qualitative analysis with graphic representation of the publication productivity of a scientist facilitates easy and clear perception about the work of a scientist. Bhabha’s scientific work spanned over more than three decades (1933-1967) during which he published 104 publications, which could be classified into nine fields: Interaction of Radiation with Matter (4), Quantum Electrodynamics (5), Mathematical Physics (2), Cosmic Ray Physics (18), Elementary Particle Physics (14), Field Theory (15), General Physics (2), Nuclear Physics (4) and General (40). The highest number of publications (6) were published in 1941, 1945 and 1964 respectively. The average number of publications published per year was 3.05. His productivity coefficient was 0.05 which is a clear indicates that his publication productivity was quite consistent throughout his scientific career. He was single author in 79 of his publications and the main author in 24 publications indicates that he always preferred to work himself and lead the team as ‘mentor’. Bhabha had 22 collaborators during the period. Team of research collaborators working with a successful scientist documents the sociological aspect of history of science while generating knowledge by a leader in a domain.
Bhabha became a citable author in 1937. Bhabha received 1211 citations to his 30 publications out of 104 publications. Out of 104, 74 publications did not receive any citations. Out of 74 publications, 40 publications dealt subjects mainly of general interest. Bhabha’s 86.66 percent of cited publications received their first citations within four years of their publication indicates that his publications were noticed immediately and had direct impact among the fellow researchers working all over the world. His overall citation rate was 11.64 per cited publication. The highest citations 389 were received to the domain ‘Cosmic ray physics’. The highest number of citations received were 45 in 1938. His self-citations were only 24 (1.98%) and citations by others were 1187 (98.02%). The highest self citations were six in 1946. Bhabha’s mean diachronous self-citation rate was 1.98. The highest citation rate 28.4 was to the domain ‘Quantum electrodynamics. His single authored publications have received the highest number 863 (71.26%) of citations. Bhabha’s five publications have been cited more than 100 times each. His publications have been cited by the authors working in various diverse fields like nuclear physics, mathematical physics, instrumentation, optics, geophysics and geochemistry, condensed matter physics, applied physics, electrical and electronic engineering, mechanical engineering etc., indicating a very diverse influence and impact of Bhabha’s publications. Bhabha’s publications have also been cited by the Nobel laureates like V. L. Ginzberg, Wolfgang Pauli, H. A. Bethe, M. Born, W. Bothe, E. P. Wigner, H. Yukawa, P. M. S. Blackett and C. N. Yang which is an indication of his originality of ideas and high quality of publications
Small Space Stream Summary for Matroid Center
No full textIn the matroid center problem, which generalizes the k-center problem, we need to pick a set of centers that is an independent set of a matroid with rank r. We study this problem in streaming, where elements of the ground set arrive in the stream. We first show that any randomized one-pass streaming algorithm that computes a better than Delta-approximation for partition-matroid center must use Omega(r^2) bits of space, where Delta is the aspect ratio of the metric and can be arbitrarily large. This shows a quadratic separation between matroid center and k-center, for which the Doubling algorithm [Charikar et al., 1997] gives an 8-approximation using O(k)-space and one pass. To complement this, we give a one-pass algorithm for matroid center that stores at most O(r^2 log(1/epsilon)/epsilon) points (viz., stream summary) among which a (7+epsilon)-approximate solution exists, which can be found by brute force, or a (17+epsilon)-approximation can be found with an efficient algorithm. If we are allowed a second pass, we can compute a (3+epsilon)-approximation efficiently.
We also consider the problem of matroid center with z outliers and give a one-pass algorithm that outputs a set of O((r^2+rz)log(1/epsilon)/epsilon) points that contains a (15+epsilon)-approximate solution. Our techniques extend to knapsack center and knapsack center with z outliers in a straightforward way, and we get algorithms that use space linear in the size of a largest feasible set (as opposed to quadratic space for matroid center)
Mapping of literature on Bose – Einstein condensation
No full textThis paper attempts to highlight quantitatively the growth and development of research work in this field on Bose-Einstein Condensation (BEC) in terms of publication output as per Science Citation Index (1982-2005). During 1982–2005 a total of 5258 papers were published by the scientists in this field. The average number of publications published per year were 219. The highest number of papers 814 were published in 2004. There were 77 countries involved in the research in this field. USA is the top producing country with 1632 publications (31%) followed by Germany with 620 publications (11.79%). Authorship and collaboration trend was towards multiauthored papers. Intensive collaboration was found during 1996-2005. One paper “Astrophysical Journal 543 (1), (2000), L39-L42” had 56 collaborators. There were 1635 international collaborative papers. Bilateral collaboration accounted for 24 percent of total collaborative papers. National Institute of Standards & Technology (USA) topped the list with 179 publications followed by University of Colorado (USA) with 160 publications. The most prolific authors were: W. Ketterle (USA) with 93 publications, K. Burnett (England) and M. Lewenstein (England) with 68 publications each and S. Stringari with 57 publications. The most preferred journals by the scientists were : Physical Review- A with 1504 papers, Physical Review Letters with 824 papers, Journal of Physics-B with 205 papers, Physical Review- B with 178 papers, Physics Letters-A with157 papers, Physical Review –E with 122 papers and Journal of Low Temperature Physics with 102 papers. The high frequency keywords were : Bose-Einstein Condensation (2012), Gases (1928), Atoms (860), and Dynamics (493)
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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