نتایج جستجو برای: calculation
تعداد نتایج: 101943 فیلتر نتایج به سال:
OBJECTIVES This study aims to assess the completeness of reporting of randomised controlled trials (RCTs) of acupuncture in the Korean literature. DESIGN Systematic review. METHODS We searched 12 Korean databases and 7 Korean journals to identify eligible RCTs of acupuncture published from 1996 to July 2011. We used the Consolidated Standards of Reporting Trials (CONSORT) checklist for para...
We use a nonpertubative approach which combines coupled channel Lippmann Schwinger equations with meson-meson potentials provided by the lowest order chiral Lagrangian. By means of one parameter, a cut off in the momentum of the loop integrals, which results of the order of 1 GeV, we obtain singularities in the S-wave amplitudes corresponding to the σ, f0 and a0 resonances. The ππ → ππ , ππ → K...
I provide a basic introduction to modern helicity amplitude methods, including color organization, the spinor helicity formalism, and factorization properties. I also describe the BCFW (on-shell) recursion relation at tree level, and explain how similar ideas — unitarity and on-shell methods — work at the loop level. These notes are based on lectures delivered at the 2012 CERN Summer School and...
Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the branching ratios of the Cabibbo-suppressed decay modesD0 → π−π+ and D0 → K−K+. We measured: Γ(D0 → K−K+)/Γ(D0 → π−π+) = 2.81 ± 0.10(stat) ± 0.06(syst), Γ(D0 → K−K+)/Γ(D0 → K−π+) = 0.0993 ± 0.0014(stat) ± 0.0014(syst), and Γ(D0 → π−π+)/Γ(D0 → K−π+) = 0.0353 ± 0.0012(stat) ± 0.0006(syst). These values ha...
We calculate one-loop corrections to the effective Lagrangian for the D3 brane. We perform the gauge-fixing of the κ-symmetric Born-Infeld D3 brane action in the flat background using Killing gauge. The linearized supersymmetry of the gaugefixed action coincides with that of the N = 4 Yang-Mills theory. We use the helicity amplitude and unitarity technique to calculate the one-loop amplitudes a...
The Elmore delay is the metric of choice for performancedriven design applications due to its simple, explicit form and ease with which sensitivity information can be calculated. However, for deep submicron technologies, the accuracy of the Elmore delay is insufficient. In this paper, we formulate a delay model using a provably stable two pole waveform response that provides a unique mapping be...
This paper describes two beta decay experiments performed at the CERN/ISOLDE mass separator. The structure of Kr has been studied using a total absorption γ spectrometer (TAgS). The measured Gamow-Teller strength is presented and compared to HFBCS+QRPA calculations. The Na decay is also presented. The structure of the Mg daughter nucleus is compared to shell-model calculations, showing for the ...
Justification for the original sample size calculation is made in the trial protocol. In this additional file, we provide details of the assumptions and calculations in estimating the likely width of the 95% confidence interval (CI) for the estimators, the risk difference and the log odds ratio, for the primary practitioner outcome, x-ray referral. Table 1 contains the likely widths of the 95% ...
We calculate all the four-photon helicity amplitudes at the one-loop level in a massive theory using multiplecut methods. The amplitudes are derived in scalar QED, QED and QED theories. We will see the origin of rational terms. We extend the calculation to the simplest six-photon helicity amplitude where all photons have the same helicity. version June 28, 2009
Estimate of packet-loss rates between arbitrary Internet hosts is critical for many large-scale distributed applications, including overlay routing, P2P media streaming, VoIP, and edge-server location in CDNs. iPlane has been recently proposed to estimate delay, packet-loss rates, and bandwidth between arbitrary hosts [1]. To our knowledge, iPlane is the only published technique for estimating ...
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