48,230 research outputs found
Letter from Arno B. Cammerer to J. R. Eakin
No full textLetter from Arno B. Cammerer to J. R. Eakin describing the procedure for purchasing Bright Angel Trail
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
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
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
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
sj-png-1-han-10.1177_15589447241232094 – Supplemental material for Comparison of Intramedullary Screw Fixation, Plating, and K-Wires for Metacarpal Fracture Fixation: A Meta-Analysis
No full textSupplemental material, sj-png-1-han-10.1177_15589447241232094 for Comparison of Intramedullary Screw Fixation, Plating, and K-Wires for Metacarpal Fracture Fixation: A Meta-Analysis by Cristina R. DelPrete, John Chao, Bobby B. Varghese, Patricia Greenberg, Hari Iyer and Ajul Shah in HAND</p
More quasi than normal!
No full textContents1. The Black Hole Equilibrium Problem; B. Carter.2. Stability of Black Holes; B.F. Whiting. 3. Separability of Wave Equations; E.G. Kalnins, et al. 4. Energy-Conservation Laws for Perturbed Stars and Black Holes; V.Ferrari. 5. Gravitational Collapse and Cosmic Censorship; R.M.Wald. 6. Disturbing the Black Hole; J.D. Bekenstein.7. Notes on Black Hole Fluctuations and Back-Reaction; B.L. Hu, et al. 8. Black Holes in Higher Curvature Gravity; R.C. Myers. 9. Micro-Structure of Black Holes and String Theory; S. Wadia. 10. Quantum Geometry and Black Holes; A. Ashtekar, K. Krasnov. 11. Black Holes, Global Monopole Charge and Quasi-Local Energy; N. Dadhich. 12. Kinematical Consequences of Inertial Forces in General Relativity; A.R. Prasanna, S. Iyer. 13. Gyroscopic Precession and Inertial Forces in General Relativity; R.Nayak. 14. Analysis of the Equilibrium of a Charged Test Particlein the Kerr - Newman Black Hole; J.M. Aguirregabiria, et al. 15. Neutron Stars and Relativistic Gravity; M. Vivekanand. 16. Accretion Disks around Black Holes; P.J. Wiita. 17. Astrophysical Evidence for Black Hole Event Horizons; K. Menou, et al. 18. Black Holes in Active Galactic Nuclei; A.K. Kembhavi. 19. Energetic Photon Spectra as Probes of the Process of Particle Acceleration in Accretion Flows around Black Holes; R. Cowsik. 20. Black Hole Perturbation Approach to Gravitational Radiation: Post-Newtonian Expansion for Inspiralling Binaries; M.Sasaki. 21. More Quasi Than Normal! N. Andersson. 22. The Two Black Hole Problem: Beyond Linear Perturbations; R.H. Price. 23. The Synergy between Numerical and Perturbative Approaches to Black Holes; E. Seidel. 24. Cauchy-Characteristic Matching; N.T. Bishop, et al. 25. Astrophysical Sources of Gravitational Waves; B.S. Sathyaprakash.26. Gravitational Radiation from Inspiraling Compact Binaries: Motion, Generation and Radiation Reaction; B.R. Iyer. 27. Ground-Based Interferometric Detectors of Gravitational Waves; B. Bhawal. 28. Detection of Gravitational Waves from Inspiraling Compact Binaries; S.V. Dhurandhar. 29. Perturbations of Cosmological Backgrounds; P.K.S. Dunsby, G.F.R. Ellis. 30.Mach's Principle in Electrodynamics and Inertia; J.V. Narlikar.31. The Early History of Quantum Gravity (1916&endash;1940); J. Stachel. 32. Geometry in Color Perception; A. Ashtekar, etal. 33. C.V. Vishveshwara &endash; A Profile; N. Panchapakesan. Publications of C.V. Vishveshwara
sj-png-2-han-10.1177_15589447241232094 – Supplemental material for Comparison of Intramedullary Screw Fixation, Plating, and K-Wires for Metacarpal Fracture Fixation: A Meta-Analysis
No full textSupplemental material, sj-png-2-han-10.1177_15589447241232094 for Comparison of Intramedullary Screw Fixation, Plating, and K-Wires for Metacarpal Fracture Fixation: A Meta-Analysis by Cristina R. DelPrete, John Chao, Bobby B. Varghese, Patricia Greenberg, Hari Iyer and Ajul Shah in HAND</p
Convex B-Spline Surfaces
No full textThis paper gives a definition for the convexity of B-spline surfaces and points out the conditions on which the convexity depends. A back shift smoothing method is introduced. This method is built on the basis of the convexity conditions. Application of this smoothing method gives a strictly convex curv
Measurement of b-hadron masses
No full textMeasurements of b-hadron masses are performed with the exclusive decay modes B +→J/ψK +, B 0→J/ψK +, B0→J/ψKS0, Bs0→J/ψφ and Λb0→J/ψΛ using an integrated luminosity of 35pb -1 collected in pp collisions at a centre-of-mass energy of 7 TeV by the LHCb experiment. The momentum scale is calibrated with J/ψ→μ +μ - decays and verified to be known to a relative precision of 2 ×10 -4 using other two-body decays. The results are more precise than previous measurements, particularly in the case of the Bs0 and Λb0 masses
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