90,916 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
Get PDFThe 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
Activating BRAF and N-Ras mutations in sporadic primary melanomas: An inverse association with allelic loss on chromosome 9
No full textWe searched and report mutations in the BRAF and N-ras genes in 22 out of 35 (63 percent) primary sporadic melanomas. In three melanomas, mutations were concomitantly present in both genes. In all, 10 out of 12 mutations in the BRAF gene involved the 'hot spot' codon 600 (In all communications on mutations in the BRAF gene, the nucleotide and codon numbers have been based on the NCBI gene bank nucleotide sequence NM_004333. However, according to NCBI gene bank sequence with accession number NT_007914, there is a discrepancy of one codon (three nucleotides) in exon 1 in the sequence with accession number NM_004333. The sequence analysis of exon 1 of the BRAF gene in our laboratory has shown that the sequence derived from NT_007914 is correct (Kumar et al., 2003). Due to the correctness of the latter, sequence numbering of codons and nucleotides after exon 1 are changed by +1 and +3, respectively.), one tandem CT1789-90TC base change represented a novel mutation and another mutation caused a G466R amino-acid change within the glycine-rich loop in the kinase domain. Mutations in the N-ras gene in 11 melanomas were at codon 61 whereas two melanomas carried mutations in codon 12 including a tandem mutation GG>AA. We observed an inverse association between BRAF/N-ras mutations and the frequency of loss of heterozygosity (LOH) on chromosome 9 at 10 different loci. Melanomas with BRAF/N-ras mutations showed a statistically significant decreased frequency of LOH on chromosome 9 compared with cases without mutations (mean fractional allelic loss (FAL) = 0.29±0.23 vs 0.72±0.33; t-test, P = 0.0001). Difference in the FAL value between tumours with and without BRAF/N-ras mutations on 33 loci on five other chromosomes was not statistically significant (mean FAL 0.17±0.19 vs 0.25±0.22; Mest, P = 0.24). Melanoma cases with BRAF/N-ras mutations were also associated with lower age at diagnosis than cases without mutations (mean age 80.38±7.24 vs 65.77±19.79 years; t-test, P = 0.02). Our data suggest that the occurrence of BRAF/N-ras mutations compensate the requirement for the allelic loss at chromosome 9, which is one of the key events in melanoma
Essays on Gandhian Politics. The Rowlatt Satyagraha of 1919, éd. by R. Kumar
No full textPouchepadass Jacques. Essays on Gandhian Politics. The Rowlatt Satyagraha of 1919, éd. by R. Kumar. In: Revue française d'histoire d'outre-mer, tome 60, n°220, 3e trimestre 1973. pp. 495-496
Essays on Gandhian Politics. The Rowlatt Satyagraha of 1919, éd. by R. Kumar
No full textPouchepadass Jacques. Essays on Gandhian Politics. The Rowlatt Satyagraha of 1919, éd. by R. Kumar. In: Revue française d'histoire d'outre-mer, tome 60, n°220, 3e trimestre 1973. pp. 495-496
Scientometric portrait of Ranjit Kumar Mitra
Get PDFScientometric analysis of 91 publications by Ranjit Kumar Mitra, during 1965-2001 in domains: Biochemical Genetics (30), Molecular Biology (16), Bioenergetics (12), Plant Biochemistry (11), Biotechnology (10), Methodology (5), Popular Science (4), Gene Accessions (2), and Cytogenetics (1); revealed research team (53 collaborators) , prominent ones with their authorship credits being : C. R. Bhatia (43), T. Gopala Krishna (19), K. N. Suseelan (10), and S. E. Pawar (9). Productivity Coefficient was 0.59 and overall Collaboration Coefficient was 0.95. Publication Concentration was 36, Publication Density was 1.28, and average Bradford Multiplier was 1.5. Major achievements, authorship pattern, channels used, central tendencies on bibliographic characteristics, Synchronous Self-citation Rate, and keyword frequencies in titles of the publications are documented
Identification of Novelty in R&D
Get PDF: Most inventions originate from novel and simple ideas. These ideas which are raw to begin-with are nurtured and nourished by R&D organization before they are tried on a large scale. However, all such ideas may not lead to commercially successful products. Hence there is a need
to correctly identify the novelty of an idea before it is commercialized. The paper analyzes some problems associated with the identification of novelty and suggests important criteria that help in transforming novelty to
commercial success.
Keywords : Novelty identification
Scientometric Portrait of Homi Jehangir Bhabha: The Father of Indian Nuclear Research Programme
Get PDFQuantitative 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
Downsiomyia rajaveli Natarajan & Gopalakrishnan & Kumar & Kumar 2022, n. sp.
No full textDownsiomyia rajaveli, n. sp. (Figs 1, 2) Diagnosis. Downsiomyia rajaveli is a distinctive species, with the adult female readily recognizable by having the apical 0.5 of the scutum with silvery-white scales divided by a longitudinal dark band; white scales on the scutellum; absence of pale scales on the prescutellar area; and in the larva by having seta 1-C slender without pigment and bifurcate or trifurcate apically; comb with more than 20 scales, each fringed at the apex; seta 1-S with 3 branches and about as long as the siphon at the point of attachment. Female (Fig. 1A–F). Medium-sized mosquito. Head: Dorsal surface of vertex black, a line of narrow silvery scales to eye margins, this line rather widened dorsomedially, a few dark upright forked scales on occiput; antenna, clypeus, maxillary palpus and proboscis black; palpus short, only about 1/7 length of proboscis. Thorax: Scutal integument dark, about anterior half of scutum white-scaled, this area broadly divided anteriorly by a median longitudinal area of dark scales (1 specimen with a few silvery scales on anterior margin in middle) (Fig. 1A), lateral margin of pale scaling continued posteriorly along lateral scutal angle to posterior limit of paratergite; no acrostichal and dorsocentral setae; prescutellar area with dark scales, no pale scales on margin of prescutellar bare space; scutellum with white scales, more on midlobe, a few on lateral lobes; antepronotum with broad silvery scales; postpronotum with a few flat dark scales posteriorly just before setae; integument of pleura almost black (Fig. 1B) with a patch of flat silvery scales covering upper and lower mesokatepisternum, upper proepisternal area, lower prealar area and mesepimeron; 3–5 upper proepisternal setae. Legs: Forefemur with narrow area of pale scales ventrobasally; midfemur dark, posteriorly pale ventrally on basal half, tapering to ventral margin just beyond midlength; hindfemur with approximately basal two-thirds white, apical third dark-scaled; tibia and tarsi of all legs dark-scaled. Abdomen: Tergum I with a broad lateral patch of silvery-white scales, terga II–VII with prominent silvery-white basolateral patches, dorsal aspects dark except basolateral patches visible in dorsal view, a complete narrow basal white band present on VIII. Genitalia (Fig. 1C): Width of tergum VIII greater than length, covered with minute spicules, moderately pigmented, broad proximally, broadly rounded distally with a number of long stout and a few fine setae. Width of sternum VIII about equal to length, minute spicules present, posterior margin with slight median emargination, numerous short, curved setae on posterior margin. Tergum IX moderately long, pigmented, U- shaped with 3 moderately long, slender setae apically on each lobe (Fig. 1D). Insula (partially damaged), lip-like, depressed medially with 1–3 long, slender setae (Fig. 1F). One large and 2 medium spermathecal capsules (Fig. 1E). Male. Unknown. Pupa (Fig. 2A,B). A single pupal exuviae was used for the description. Cephalothorax (Fig. 2A): Trumpet length 0.6 mm. Seta 1-CT single, stronger and longer than setae 2,3-CT; setae 2,3-CT double; seta 4-CT triple; seta 5-CT as long as seta 7-CT, double; seta 6-CT single; seta 7-CT single, branched beyond midlength; seta 8-CT double or triple; seta 9-CT double. Metanotum: Seta 10-CT as long as seta 12-CT, 4-branched; seta 12-CT triple. Abdomen (Fig. 2B): Length 3 mm; seta 1-II with 4 branches, seta 1-III,IV double, seta 1-V–VII single; seta 3-II about half length of following segment, seta 3-V equally distant from setae 1,5-V; seta 5-I single or double, 5-IV,V single, long, 1.5 length of following tergum, 5-VI,VII single, shorter than following tergum; seta 9-VII with 2 strong aciculate branches; seta 4-VIII single; seta 9-VIII with 6 strong aciculate branches. Paddle: Length 0.72 mm, index 1.08; seta 1-Pa single. Larva, fourth-instar (Fig. 2C–E). A single somewhat damaged larval exuviae was used for this description. Head (Fig. 2C): Length 0.88 mm. Dorsomentum with 10 lateral teeth.Antenna length 0.44 mm, slightly swollen just before insertion of seta 1-A, tapered distally, with slender sparse spicules, basal spicules elongate; seta 1-A inserted just before midlength, with 13–16 weak aciculate branches. Seta 1-C elongate, slender; seta 4-C well developed with 16,18 branches, slightly shorter than setae 5,6-C; seta 5-C with 18,19 branches; seta 6-C with 14,15 branches; seta 7-C with 15,18 branches; setae 4,6,7-C arranged more or less in straight line; seta 5-C inserted between setae 4,6-C; seta 8-C with 6 branches; seta 9-C with 5 branches; seta 10-C with 5 branches; seta 11-C with 24,27 branches; seta 12-C with 7 branches; seta 13-C double; seta 14-C with 4 branches; seta 15-C with 3 branches; setae 14,15-C and basal maxillary seta 1-Mx double with rather stiff tapered branches. Thorax: Integument not speculate (smooth), no stellate setae. Abdomen: Integument same as thorax, some setae slightly stellate; seta 6-I–VI double. Segment VIII: Comb (Fig. 2E) with 23,26 short, evenly fringed scales. Siphon (Fig. 2D): Length 0.84 mm, dark brown, pale apically, without spicules, acus weakly developed; pecten on basal 0.4, with 13,16 spines, 3,4 small spines distally, each spine with strong distinct denticles near middle of ventral margin and a few fine denticles proximally; seta 1-S with 3 branches, about as long as width of siphon at point of attachment. Segment X: Saddle incomplete, with long, stout spicules dorsolaterally on posterior margin; seta 1-X double, slightly longer than saddle; seta 2-X with 4 branches; ventral brush (seta 4-X) with 5 pairs of setae, each with 3,4 branches. Type material. HOLOTYPE: Female (A36802) with associated larval (Le14111) and pupal (Pe14111) exuviae mounted on same microscope slide and dissected genitalia (G36802) mounted on a separate slide. PARATYPES: Two females (A36790, A36813) with dissected genitalia (G36790, G36813) on microscope slides. The specimens are deposited in the National Mosquito Museum, Indian Council of Medical Research (ICMR)- Vector Control Research Centre, Indira Nagar, Puducherry, India. They bear the following collection data: INDIA: Himachal Pradesh, Kangra District, way to Triund (32° 14′ 473″ N; 76° 18′ 532″ E; 1907 m a.s.l), collected on 21.07.201 8, as larvae from tree holes, collected by N. Krishnaraj. Etymology. Downsiomyia rajaveli is named in honour of DrA.R.Rajavel(deceased),former taxonomist,Scientist ‘E’, at the ICMR-Vector Control Research Centre, Puducherry, India. He is recognised for his uncompromised, tremendous contribution to the study on mosquito diversity in different ecological zones in India and the founder of the Culicid Biodiversity Cell and National Mosquito Museum of the ICMR-Vector Control Research Centre. He very much inspired and mentored colleagues and students in the field of mosquito systematics. Bionomics. Adults of Do. rajaveli emerged from larvae collected from tree holes. Larvae of Ochlerotatus (Finlaya) oreophilus Edwards, 1916 were found with the new species. Nothing is known of the bionomics of the adults. ......Continued on the next page TABLE 1. (Continued) Phylogenetic analyses. Two specimens, the holotype and one paratype, were subjected to DNA barcoding and the mitochondrial COI sequences amplified were deposited in GenBank, accession numbers OP271461 and OP271462. The sequences were subjected to phylogenetic analysis along with COI sequences of six species of Downsiomyia available in GenBank, and the results support the recognition of Do. rajaveli as a distinct clade in the genus (Fig. 3). With reference to Fig. 3, it is noteworthy that the specimen of Do. nivea from Malaysia (KY81567.1) is not conspecific with the two specimens from India (OM368624.1 and ON506043.1) that are identified as this species. Because Do. nivea was described from the Philippines (Ludlow 1903), it would seem likely that the specimens from one or the other or both countries were misidentified. Taxonomic discussion. Although only three adult females and the larval and pupal exuviae of a single female were available, these seem to be sufficient, even in the absence of adult males and male genitalia, to recognize them as belonging to a new species. Based on characters of the adult females, female genitalia and larval exuviae, Do. rajaveli is a member of the Albonivea Group of the genus. The characters are as follows. In the adult female, integument of scutum with large snow-white patches in front, separated medially by a longitudinal dark stripe; acrostichal and dorsocentral setae absent; tarsi entirely dark-scaled. In the female genitalia, the characteristic Ushaped tergum IX with 3 setae apically on each lobe; insula lip-like with 1–3 setae in lateral patches. In the larva, seta 1-A with many branches; setae 4–7-C well developed with many branches; spermatheca with 1 large and 2 small capsules. The female of Do. rajaveli resembles the females of seven species of Downsiomyia by having the lateral white-scale areas of the scutum completely divided by a dark median longitudinal stripe. These species include Do. axitiosa (Kulasekera, Knight & Harbach, 1990) from East Malaysia, Do. dorseyi (Knight, 1946) from Australasia, Do. ganapathi (Colless, 1958) from Malaysia, Do. lactea (Knight, 1946) from the Philippines, Do. mohani from India, Do. nipponica (La Casse & Yamaguti, 1948) from the Ryukyu Archipelago of Japan and Do. nishikawai (Tanaka, Mizusawa & Saugstad, 1979) also from the Ryukyu Archipelago. The combination of characters that distinguish the female of Do. rajaveli and the other species are given in Table 1. Larvae of members of Downsiomyia can be divided into two groups based on the number of seta 4-X (ventral brush), i.e. (1) four pairs and (2) five or more pairs. Downsiomyia rajaveli has the ventral brush with five pairs of setae, similar to Do. axitiosa, Do. dorseyi, Do. ganapathi, Do. leonis (Colless, 1958) from Singapore and Do. litorea (Colless, 1958) also from Singapore. The comb scales of Do. rajaveli, rounded apically and fringed at sides and apex, are quite similar to the comb scales of Do. axitiosa and Do. litorea. The comb scales of these three species are quite different from the comb scales of the other species, which have a long apical spine and mostly with fringe at base, except Do. dorseyi, Do. ganapathi and Do. leonis, which have short, apically pointed comb scales that are fringed at the sides. The important characters of these six species are compared in Table 2. Along with Do. rajaveli, six other species in the genus Downsiomyia are known to occur in India, including Do. albolateralis, Do. albonivea, Do. mohani, Do. nivea, Do. niveoides and Do. novonivea. The females of these species, except Do. mohani, differ from rajaveli by the absence of divided silvery-white scale-patches at the front of the scutum. The larva of Do. rajaveli seems to be unique among all these species with regard to the comb scales, which are evenly fringed with a rounded apex, as opposed to being spine-like in the other species. As noted above, the COI sequences of Do. nivea from Kerala, India are distinct from those of Do. nivea from Sarawak, Malaysia (KY817567) (Fig. 3). Downsiomyia nivea in India, reported by (Tewari & Hiriyan 1995), is not conspecific with the type specimens of Do. nivea from the Philippine Islands (Reinert & Harbach 2006), which needs to be studied to determine its taxonomic status.Published as part of Natarajan, R., Gopalakrishnan, S., Kumar, Pradeep & Kumar, Ashwani, 2022, A new species of the genus Downsiomyia Vargas (Diptera: Culicidae) from Himachal Pradesh, India, pp. 575-584 in Zootaxa 5205 (6) on pages 576-583, DOI: 10.11646/zootaxa.5205.6.5, http://zenodo.org/record/731878
Laguerre geometry of hypersurfaces in R-n
No full textLaguerre geometry of surfaces in R-3 is given in the book of Blaschke [Vorlesungen uber Differentialgeometrie, Springer, Berlin Heidelberg New York (1929)], and has been studied by Musso and Nicolodi [Trans. Am. Math. soc. 348, 4321-4337 (1996); Abh. Math. Sem. Univ. Hamburg 69, 123-138 (1999); Int. J. Math. 11(7), 911-924 (2000)], Palmer [Remarks on a variation problem in Laguerre geometry. Rendiconti di Mathematica, Serie VII, Roma, vol. 19, pp. 281-293 (1999)] and other authors. In this paper we study Laguerre differential geometry of hypersurfaces in R-n. For any umbilical free hypersurface x:M -> R-n with non-zero principal curvatures we define a Laguerre invariant metric g on M and a Laguerre invariant self-adjoint operator S:TM -> TM, and show that {g,S} is a complete Laguerre invariant system for hypersurfaces in R-n with >= 4. We calculate the Euler-Lagrange equation for the Laguerre volume functional of Laguerre metric by using Laguerre invariants. Using the Euclidean space R-n, the semi-Euclidean space R-1(n) and the degenerate space R-0(n) we define three Laguerre space forms URn, UR1n and UR0n and define the Laguerre embeddings URn1 -> URn and UR0n -> URn, analogously to what happens in the Moebius geometry where we have Moebius space forms S-n, H-n and R-n (spaces of constant curvature) and conformal embeddings H-n -> S-n and R-n -> S-n[cf. Liu et al. in Tohoku Math. J. 53, 553-569 (2001) and Wang in Manuscr. Math. 96, 517-534 (1998)]. Using these Laguerre embeddings we can unify the Laguerre geometry of hypersurfaces in R-n, R-1(n) and R-0(n). As an example we show that minimal surfaces in R-1(3) or R-0(3) are Laguerre minimal in R-3.MathematicsSCI(E)0ARTICLE173-9512
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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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