36,422 research outputs found
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
THE TRANSITION OF MOLECULAR OXYGEN
No full textAuthor Institution: Research School of Physical Sciences and Engineering, The Australian National University; Molecular Physics Laboratory, SRI InternationalThe origin of the intensity of the transition of molecular oxygen, first observed recently by Eppink et al. [J. Chem. Phys. 108, 1305 (1998).], is discussed. It is shown that the transition borrows its intensity principally from the dipole-allowed transition, through spin-orbit mixing between the and states. Estimated continuum photoabsorption cross sections and discrete oscillator strengths for the system are presented
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
The Grothendieck-Cousin complex on G/B x G/B
No full textIn his 1978 paper, The Grothendieck-Cousin complex of an induced representation, G. Kempf computes the Cousin complex corresponding to an induced representation of a reductive algebraic group G. His technique uses the geometry of the homogeneous space G/B, B being a Borel subgroup of G. The complex gives a resolution by B-modules, which easily yields the Weyl character formula.Instead of considering G/B, we analyze the analagous situation for . The Cousin complex corresponding to an induced representation in this case consists of G-modules. We are able to study the terms of the complex by exploiting parallels between the B-action on G/B and the G-action on --there is a natural one-to-one correspondence between the orbits of these actions. Our work here is greatly simplified by reducing to the affine situation and applying the theory of A-G modules. We construct a spectral sequence relating the terms of the complexes. Finally, an application to the theory of D-modules is given.Made available in DSpace on 2011-05-07T12:16:39Z (GMT). No. of bitstreams: 2
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G (A, B)-labeling of cacti over groups
No full text© 2016 Author(s). Let G be a group with nonempty subsets A and B. The graph G(A, B) is the simple graph obtained by deleting all loops from the graph whose vertex set is A and where vertices x and y are adjacent if and only if there is a b B such that xb = y or yb = x. In this paper, we present realizations of some cacti as G(A, B)\u27s
FIGURE 9 in Revised taxonomic status of Eidophasia zukowskyi Amsel, 1938 (Lepidoptera, Plutellidae) with first description of its male and female genitalia
No full textFIGURE 9. Female genitalia: Eidophasia zukowskyi: a—ventral view, c—antrum, e—ductus bursae near inception to bursa copulatrix, g—strengthened walls of bursa copulatrix, Eidophasia syenitella: b—ventral view, d—antrum, f—ductus bursae near inception to bursa copulatrix, h—strengthened walls of bursa copulatrix (the illustrations are following Baraniak & Sohn 2015: 588, Fig. 6a, c–e).Published as part of Baraniak, Edward & Sohn, Jae-Cheon, 2016, Revised taxonomic status of Eidophasia zukowskyi Amsel, 1938 (Lepidoptera, Plutellidae) with first description of its male and female genitalia, pp. 164-172 in Zootaxa 4162 (1) on page 170, DOI: 10.11646/zootaxa.4162.1.8, http://zenodo.org/record/25717
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
No full textThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
FIGURES 5–7 in Two new species of Gisilia Kasy, 1968 (Lepidoptera, Cosmopterigidae) from Korea with first report of piercing oviscapts in Gelechioidea
No full textFIGURES 5–7. Male abdomen VIII (5) and male genitalia (6–7) of Gisilia. 5. G. melanobasis n. sp., holotype, sternite on left (a—processes on sternite, b—pleural area, c—process on tergite); 6. G. melanobasis n. sp., paratype (SJC-1090); 7. G. tamrae n. sp., holotype (SJC-1091).Published as part of Sohn, Jae-Cheon & Park, Kyu-Tek, 2018, Two new species of Gisilia Kasy, 1968 (Lepidoptera, Cosmopterigidae) from Korea with first report of piercing oviscapts in Gelechioidea, pp. 179-186 in Zootaxa 4418 (2) on page 182, DOI: 10.11646/zootaxa.4418.2.7, http://zenodo.org/record/124506
Liquid entrainment and off-take through the break at the top of a vessel
No full textIn order to determine the bleed capacity of the safety depressurization system (SDS) of Advanced Power Reactor 1400 (APR1400) in the case of total loss of feed water (TLOFW), we performed an experimental study of liquid entrainment and liquid off-take from the swelled two-phase mixture surface in a vessel. A total of 220 experimental data on the entrainment and off-take are obtained using a test vessel with a height of 2.0 m and an inner diameter of 0.3 m and a top break with a diameter of 0.05 m. Two-phase mixture levels are measured by an ultrasonic sensor within +/- 1.77% with respect to the visual level data. Droplet entrainment data are obtained with and without the top break and are compared with the existing pool entrainment data. The present droplet entrainment data have higher values than the existing pool entrainment data due to (a) the pulling toward the break of the liquid deentrained on the top wall of the vessel and (b) gas acceleration in the vicinity of the break. In the present experiment, droplet entrainment, E-fg, strongly depends upon j(g)(*)/h* and is proportional to the seventh power of j(g)(*)/h* in the same way as the off-take data. The empirical correlation for the onset of off-take is developed in terms of the Froude number (Fr-g) at the break and the non-dimensional inception height (h(b)/d). This correlation shows agreement with the present experimental data within +/- 15%. The present off-take quality data show agreement with Schrock's off-take quality correlation with the rms error of 15.8%. (c) 2005 Elsevier B.V. All rights reserved
Figure 4 in A taxonomic review of the Neotropical genus Anchimacheta (Lepidoptera: Urodidae) with descriptions of a new congener and an allied, new genus and species from Sri Lanka
No full textFigure 4. Male genitalia. (A) Genital capsule of Anchimacheta capnodes (= A. iodes), paralectotype (insets: a, b – right valva; c – medial band of gnathos; d – juxta); (B) right valva of A. costaricae, holotype; (C) phallus of A. capnodes (= A. iodes), paralectotype; (D) phallus of A. costaricae, holotype; (E) genital capsule of Glaucotunica tamila, holotype (insets: e – gnathal arms; f – juxta); (F) phallus of G. tamila, holotype (inset: g – enlarged distal third, transmitted light phase contrast image).Published as part of Sohn, Jae-Cheon, 2014, A taxonomic review of the Neotropical genus Anchimacheta (Lepidoptera: Urodidae) with descriptions of a new congener and an allied, new genus and species from Sri Lanka, pp. 2617-2631 in Journal of Natural History 48 (43-44) on page 2622, DOI: 10.1080/00222933.2014.939730, http://zenodo.org/record/463151
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