115,271 research outputs found
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
Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+
No full textAn analysis of B+ → K0
Sπ+ and B+ → K0
S K+ decays is performed with the LHCb experiment. The pp
collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass
energies of
√
s = 7 TeV and
√
s = 8 TeV, respectively. The ratio of branching fractions and the
direct CP asymmetries are measured to be B(B+ → K0
S K+
)/B(B+ → K0
Sπ+
) = 0.064 ± 0.009 (stat.) ±
0.004 (syst.), ACP(B+ → K0
Sπ+
) = −0.022 ± 0.025 (stat.) ± 0.010 (syst.) and ACP(B+ → K0
S K+
) =
−0.21 ± 0.14 (stat.) ± 0.01 (syst.). The data sample taken at
√
s = 7 TeV is used to search for
B+
c
→ K0
S K+ decays and results in the upper limit ( fc · B(B+
c
→ K0
S K+
))/( fu · B(B+ → K0
Sπ+
)) <
5.8 × 10−2 at 90% confidence level, where fc and fu denote the hadronisation fractions of a ¯b
quark
into a B+
c or a B+ meson, respectively
Calibrating and constraining molecular clocks
No full textCalibrating and constraining molecular clocks Pp. 35-86. In The timetree of Life, S. B. Hedges & S. Kumar (eds), OUP, 2009 In dating phylogenetic trees, it is important to work to the strengths of paleontology and molecular phylogeny estimation. Minimum constraints on calibrations (i.e., the oldest fossils in a crown clade) may be calculated with some precision and may be treated as hard bounds, while maximum constraints are soft bounds that may be represented most honestly by probability distributions that reflect the distribution of fossiliferous rocks around the time in question, but allow a small probability of truly ancient dates as well. We present detailed documentation of 63 key calibration dates, with thorough evidence and error expressions, for a wide range of organisms.Calibrating and constraining molecular clocks Pp. 35-86. In The timetree of Life, S. B. Hedges & S. Kumar (eds), OUP, 2009 In dating phylogenetic trees, it is important to work to the strengths of paleontology and molecular phylogeny estimation. Minimum constraints on calibrations (i.e., the oldest fossils in a crown clade) may be calculated with some precision and may be treated as hard bounds, while maximum constraints are soft bounds that may be represented most honestly by probability distributions that reflect the distribution of fossiliferous rocks around the time in question, but allow a small probability of truly ancient dates as well. We present detailed documentation of 63 key calibration dates, with thorough evidence and error expressions, for a wide range of organisms
Observations of Bºs→ψ(2S)η and Bº(s)→ψ(2S)π+π- decays
No full textFirst observations of the B0s
→ψ(2S)η, B0 →ψ(2S)π
+
π
− and B0s
→ψ(2S)π
+
π
− decays are made
using a dataset corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment in
proton–proton collisions at a centre-of-mass energy of
√
s = 7 TeV. The ratios of the branching fractions
of each of the ψ(2S) modes with respect to the corresponding J/ψ decays are
B(B0s
→ψ(2S)η)
÷
B(B0s
→J/ψη)
= 0.83± 0.14 (stat)±0.12 (syst) ±0.02 (B),
;
B(B0→ψ(2S)π
+
π
−
)
÷
B(B0→J/ψπ
+
π
−
)
= 0.56± 0.07 (stat)±0.05 (syst)± 0.01 (B),
;
B(B0s
→ψ(2S)π
+
π
−
)
÷
B(B0s
→J/ψπ
+
π
−
)
= 0.34± 0.04 (stat)±0.03 (syst)± 0.01 (B),
where the third uncertainty corresponds to the uncertainties of the dilepton branching fractions of the J/ψ
and ψ(2S) meson decays
Chamaeanthus longi cheila (Aver. & Nuraliev) Vuong & Kumar, comb. nov.
No full textChamaeanthus longi cheila (Aver. & Nuraliev) Vuong & Kumar comb. nov. Basionym: Biermannia longicheila Averyanov & Nuraliev, Phytotaxa 343: 194 (2018); Type:— VIETNAM. Gia Lai Province: K’Bang District, K’rong Municipality, Kon Ka Kinh National Park, 620 m, 9 May 2017, Nuraliev, Kuznetsov, Kuznetsova 1726 (holotype LE!).Published as part of Pham, P. D., Kumar, P., Dang, V. S., Nguyen, D. H., Bui, V. H., Tu, B. N., Dang, M. Q. & Truong, B. V., 2021, Pham et al. (2021) Notes on the genus Chamaeanthus (Orchidaceae, Epidendroideae, Vandeae, Aeridinae) with a new species from Vietnam. Phytotaxa 524 (2): 131 - 134., pp. 70 in Phytotaxa 528 (1) on page 70, DOI: 10.11646/phytotaxa.528.1.10, http://zenodo.org/record/577012
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
Monatractides tuzovskyi Pesic, N. Kumar, K. Kumar & S. Kumar 2006
No full text<i>Monatractides</i> cf. <i>tuzovskyi</i> Pesic, N. Kumar, K. Kumar & S. Kumar, 2006 (in Kumar <i>et al.</i> 2006) <p>(Figs. 69–74)</p> <p> <b>Material.</b> Thailand: River at km. 13, 465 m asl, Doi Inthanon NP, 25.xi.2007, 18° 31.532 N 98° 39.091 E, leg. Smit 0/8/0 (0/2/0 mounted); fast flowing stream crossing road to Den Ya Kat Station, 410 m asl, Chiang Dao NP, 23.xi.2007, 19° 19.735 N 98° 56.201 E, leg. Smit 0/1/0 (0/1/0 mounted); Thorntip Waterfall, Kaeng Krachan NP, 29.xi.2007, 12° 50.952 N 99° 18.498 E, leg. Smit 0/1/0.</p> <p> <b>Morphology.</b> <i>Female</i> (from River at km. 13, in parentheses specimen from Den Ya Kat Station): Idiosoma (ventral view: Fig. 70) L 694 (709), W 431 (431); dorsal shield (Fig. 69) L 575 (566), W 343 (363), L/W ratio 1.68 (1.56); dorsal plate L 538 (531); shoulder plate L 140 (134), W 53 (53), L/W ratio 2.6 (2.5); frontal plate L 109 (100), W 47 (44), L/W ratio 2.3 (2.3); shoulder/frontal plate L ratio 1.28; capitular bay L 131, W 45, L/W ratio 2.9; Cx-1 total L 236 (239), Cx-1 medial L 103, Cx-2+3 medial 44 (31); ratio Cx-1 L/ Cx-2+3 medial L 5.4 (7.7); Cx-1 medial L/Cx-2+3 medial L 2.3; genital field L/W 141 (141)/116 (116), L/W ratio 1.2 (1.2); distance genital field–excretory pore 197 (202), genital field–caudal idiosoma margin 269 (278); capitulum (Fig. 73) ventral L 173 (176); chelicera L 198 (192); palp (Fig. 72) total L 166 (166), L: P-1 23 (21), P-2 50 (49), P-3 32 (35), P-4 41 (41), P-5 20 (20); %L (given as % of total L): P-1 13.8 (12.7), P-2 30.1 (29.5), P-3 19.3 (21.1), P-4 24.7 (24.7), P-5 12.1 (12.1); P-2/P-4 ratio 1.2 (1.2); L I-Leg-4-6 (Fig. 74): 82 (76), 80 (74), 86 (85); I-Leg-6 L/W ratio 2.26 (2.24).</p> <p> <b>Remarks</b>. The specimens from Thailand agree with <i>Monatractides tuzovskyi</i> Pesic <i>et al.</i> 2006 due to the elongated idiosoma (e.g., dorsal shield L/W>1.5), P-2 and P-3 with a heavy ventral setae, P-4 without ventral denticles, a capitulum with elongated rostrum and Cx-4 posteriorly extended far beyond the genital field. Differences (in parentheses data taken from Kumar <i>et al.</i> 2006) are found in its smaller idiosoma and palp dimensions (e.g., idiosoma L 831, dorsal shield L 681, genital field L/W 169/132, palp total L 180). However, due to the fact that the male is not yet described, this is only a tentative assignment. The variability needs to be examined to clarify the taxonomy.</p> <p> <b>Distribution</b>. India (Western Himalayas). New for Thailand.</p>Published as part of <i>Pesic, Vladimir & Smit, Harry, 2009, Water mites of the family Torrenticolidae (Acari: Hydrachnidia) from Thailand, Part II. The genus Monatractides K. Viets, pp. 1-27 in Zootaxa 2012</i> on page 17, DOI: <a href="http://zenodo.org/record/185830">10.5281/zenodo.185830</a>
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
Chamaeanthus canhii Vuong & Kumar, comb. nov.
No full text<i>Chamaeanthus canhii</i> (Aver.) Vuong & Kumar <i>comb. nov.</i> <p> Basionym: <i>Biermannia canhii</i> Averyanov, Taiwania 63: 123 (2018); Type:— VIETNAM. ex-cult., s.loc., 18 October 2017, N. V. Canh, L. Averyanov, T. Maisak, AL 323 a (holotype – LE!).</p>Published as part of <i>Pham, P. D., Kumar, P., Dang, V. S., Nguyen, D. H., Bui, V. H., Tu, B. N., Dang, M. Q. & Truong, B. V., 2021, Pham et al. (2021) Notes on the genus Chamaeanthus (Orchidaceae, Epidendroideae, Vandeae, Aeridinae) with a new species from Vietnam. Phytotaxa 524 (2): 131 - 134., pp. 70 in Phytotaxa 528 (1)</i> on page 70, DOI: 10.11646/phytotaxa.528.1.10, <a href="http://zenodo.org/record/5770125">http://zenodo.org/record/5770125</a>
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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