459 research outputs found
Nobel Laureate Anthony J Leggett: A scientometric portrait
No full textThis paper attempts to analyse the publication productivity of Anthony J. Leggett, the 2003 Nobel Prize winner in physics. His contributions peaked in 1987, 1994, and 1998 with 10 papers each. He had 194 publications during 1964 - 2004 in domains like Superfluid 3He (65), Foundations of Quantum Mechanics (36), Dissipative Quantum Systems (24), Atomic Alkali Gases (18), and Miscellaneous (51)which were analysed for authorship pattern with his 70 collaborators. Most active collaborators with Anthony J Leggett were: A. Garg with six papers and A. O. MCaldeira, D. M. Ginsberg, D. J. Vanharlingen , F. Sols, S.Takagi and D. A. Wollman with five papers each. His productivity coefficient was 0.60 which clearly indicates that his productivity
increased after 50 percentile age. The highest degree of collaboration (1) for Anthony J. Leggett was found during 1964, 1971 and 1983. Journals have been the most preferred channel of communication, where as many as 139 papers out of 194 have been published. The core journals publishing his papers were: Phys. Rev. Leu. (42), Phys. Rev. B (9), J. Low Temp. Phys. (8),Phys. Rev. A (7), Ann. Phys. (6), Foundations of physics (6), J. Phys.(5), Prog. Theor: Phys. (5), and Rev. Mod. Phys. (5).Publication density was 3.02 and publication concentration was 3.59
Usage Pattern of Institutional Repositories for Scholarly Communication by Academician in Maharashtra
No full textThis paper discuss the awareness and use of institutional repositories by the academicians of the selected institutions in Maharashtra based on the questionnaire response received from 584 academicians and it comprises a total response rate of 12.67% of the total population of 4611. Outcomes of the study show that majority of the users are from Arts and Humanities, Social
Sciences and Pure Science discipline prefer to publish their research in open access journals and self-archive in institutional repositories. Also found that majority of the users prefer to use Journal articles,Research papers, Theses and Dissertation and conference proceedings and a considerable percentage of users with mean value 3.88 and standard deviation 1.953 were not self-archiving in IR due to lack of knowledge about the submission process . The study recommends promotion of self-archiving by conducting seminars, workshops, and tutorials for the
academicians
Modeling of non-equilibrium effects on a double wedge configuration in hypersonic flows
No full textNumerical simulations are extensively used for the modeling of hypersonic flows characterized by thermal and chemical non-equilibrium phenomena. The accurate modeling of non-equilibrium effects relies on knowledge of reaction rate constants and relaxation parameters, often extrapolated outside their range of applicability.
The objective of this thesis is the validation of the non-equilibrium models conventionally used by the scientific community. To this aim, the flow over a double wedge configuration is simulated for a nitrogen and air gas mixture at hypersonic conditions. The results are compared with experimental work performed at the University of Illinois by Austin and Swantek. The flow governing equations are discretized and solved using a parallel cell centered finite volume solver within COOLFluiD. The accuracy of the simulations is second order in space and first order in time. The convective fluxes are discretized using the AUSM+ scheme and the time is carried out using the fully implicit Backward Euler scheme.
The numerical predictions obtained show significant extent of thermal non-equilibrium between vibrational and translational energy modes, whereas chemical non-equilibrium is present only in the air case, since nitrogen molecules do not significantly dissociate. Two different observables are used for the validation: wall heat-flux, and Schlieren experimental data. In general, the numerical predictions are in good agreement with the experimental results. Only minor differences are observed in the heat flux or the shock structure configuration in the air and nitrogen cases.Submission published under a 24 month embargo labeled 'U of I only', the embargo will last until 2017-05-01The student, Shrutakeerti Mallikarjun Vagishwari, accepted the attached license on 2015-01-30 at 15:32.The student, Shrutakeerti Mallikarjun Vagishwari, submitted this Thesis for approval on 2015-01-30 at 15:57.This Thesis was approved for publication on 2015-02-19 at 09:04.DSpace SAF Submission Ingestion Package generated from Vireo submission #7701 on 2015-07-22 at 14:16:30Made available in DSpace on 2015-07-22T22:32:43Z (GMT). No. of bitstreams: 3
MallikarjunVagishwari_Shrutakeerti123.pdf: 2821844 bytes, checksum: 317c04418c5c4189a76d6fbe9ba071d0 (MD5)
MallikarjunVagishwari_Shrutakeerti.docx: 4049655 bytes, checksum: 3b3e647fdb8e9e0e2345d2be2005048c (MD5)
license.txt: 4085 bytes, checksum: f7512a7aa28511eff11610076c140c4c (MD5)
Previous issue date: 2015-02-19Embargo set by: Seth Robbins for item 79822
Lift date: 2017-07-22T22:34:16Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Only Restriction Lifted for Item 79822 on 2017-07-23T09:15:32Z
Scientometric portrait of Nobel laureate Leland H. Hartwell
No full textLeland H. Hartwell was honoured with the Nobel Prize in Physiology or Medicine (2001) at his 62 years age and at 41 years of research publishing career. The first contribution of the author was in 1961 at the age of 22. The number of his contributions in a year peaked in 1997 when it touched 8. He had 108 publications during 1961 – 2001 in domains: Molecular Biology of Cell Cycle Regulation (43), Genetics of Cell Division (48), Genomic Re-arrangement and DNA Repair (9), Molecular Genetics of Yeast Cell Fission (5), and Drug Target Interaction (3) which were analysed for authorship pattern with his 101 collaborators. Most active researchers having number of publications with Leland H. Hartwell were : Weinert, T. A. (10), Garvik, B. M. (8), McLaughlin, C. S. (8), Jenness, D. D. (5). His productivity coefficient was 0.76 which clearly indicates that his productivity increased after 50 percentile age. Highest collaboration coefficient (1) for Leland H. Hartwell was found during 1963-1965, 1968-1969, 1977, 1981-1983, 1985-1990, 1996 and 1998-2001. Journals have been the most preferred channel of communication where, as many as 96 papers out of 108 have been published. The core journals publishing his papers were: Cell (14), Genetics (12), Mol. Cell Biol. (8), J. Bactariol. (7), J. Cell Biol. ( 7), Science (7) J. Mol. Biol.(6), Exp. Cell Res. (5), and Proc. Nat. Acad. Sci.(5). Publication density is 2.63 and Publication concentration is 14.63. Most prolific keywords in titles of publications were: Saccharomyces cerevisiae , Yeast , Cell division cycle , RAD9, DNA Damage , Genes , Cell cycle, Genetic control , Check point (s) , Cell division , Mutant of Yeast
Assessment of orchid diversity in the sacred groves of Kodagu, India’s Central Western Ghats Biodiversity Hotspot: implications for bio-cultural diversity management
No full textCommon fixed points of self-maps over the generalized cone b-metric spaces
No full textThe main aim of this research paper is to establish the most generalized common fixed-point theorem for two self-maps that are commuting to each other under \mathbf{T}-Kannan type contractive condition over a generalized cone \mathbb{b}-metric spaces. The novelty of this research paper is to find a common fixed point of two weekly compatible self-maps over a generalized cone \mathbb{b}-metric spaces without assuming the normality condition of a cone. We illustrate our main result with a suitable example
Bibliometric Visualisation of Research Performance of Post COVID -19 and Mucormycosis: Where Do We Stand?
No full textPurpose: The second wave of the covid-19 pandemic has impacted global healthcare tremendously and mucormycosis associated with coronavirus disease is one of the deadly fungi that hit India in April 2021. An increasing number of research papers are upcoming with mucormycosis associated with coronavirus research and this paper aims at performing a bibliometric visualisation of all the available research on post covid-19 and mucormycosis.
Method: The Scopus database was selected and the search query (ALL (novel coronavirus 2019 OR coronavirus 2019 OR COVID 2019 OR COVID 19 OR nCOV OR SARSCoV2 OR COVID19) and (black fungus or white fungus or yellow fungus or mucormycosis) was developed on 25 May 2021 to retrieve all the bibliographic records on the domine of interest. VOSviewer software tool was used to constructing and visualising bibliometric networks to measure co-authors, countries, and institutions document citation, keyword metrics.
Results: A total of 154 documents were retrieved in the search, these were authored by 3,806 authors and published in 133 sources (journals, books, etc.). USA, India, and UK ware contributed the highest papers. Journal of Fungi (4), Heliyon (3), International Journal of Molecular Sciences (3), and Phytotherapy Research (3) are the journals that published the highest papers. Author per document was 24.7; Documents per author were 0.0405 and collaboration index was marked 26.5 during the period.
Conclusion: this bibliometric visualisation presents the qualitative and quantitative metrics for post-covid-19 and mucormycosis research and provides evidence that research in this domine is more in-depth than before. It is hoped that this well-directed research in different countries will provide new avenues for understanding diseases caused by mucormycosis associated with coronavirus.
Keywords: Bibliometric Visualisation; Post-Covid-19; Mucormycosis; Annual Growth Rate; Research Performance; Indi
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
Formal synthesis of (+)-didemniserinolipid B
No full textThe formal synthesis of (+)-didemniserinolipid B is achieved using Weinreb reaction, Yadav’s chiral propargyl alcohol protocol and hydrolytic ketal formation as the key steps
- …
