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Träfflista för sökning "WFRF:(Chen Zhao) "

Search: WFRF:(Chen Zhao)

  • Result 1-10 of 1893
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6.
  • Beal, Jacob, et al. (author)
  • Robust estimation of bacterial cell count from optical density
  • 2020
  • In: Communications Biology. - : Springer Science and Business Media LLC. - 2399-3642. ; 3:1
  • Journal article (peer-reviewed)abstract
    • Optical density (OD) is widely used to estimate the density of cells in liquid culture, but cannot be compared between instruments without a standardized calibration protocol and is challenging to relate to actual cell count. We address this with an interlaboratory study comparing three simple, low-cost, and highly accessible OD calibration protocols across 244 laboratories, applied to eight strains of constitutive GFP-expressing E. coli. Based on our results, we recommend calibrating OD to estimated cell count using serial dilution of silica microspheres, which produces highly precise calibration (95.5% of residuals <1.2-fold), is easily assessed for quality control, also assesses instrument effective linear range, and can be combined with fluorescence calibration to obtain units of Molecules of Equivalent Fluorescein (MEFL) per cell, allowing direct comparison and data fusion with flow cytometry measurements: in our study, fluorescence per cell measurements showed only a 1.07-fold mean difference between plate reader and flow cytometry data.
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  • 2019
  • Journal article (peer-reviewed)
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  • Ablikim, M., et al. (author)
  • Observation of a Neutral Structure near the D(D)over-bar* Mass Threshold in e(+)e(-) -> (D(D)over-bar*)(0)pi(0) at root s=4.226 and 4.257 GeV
  • 2015
  • In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 115:22
  • Journal article (peer-reviewed)abstract
    • A neutral structure in the D (D) over bar* system around the D (D) over bar* mass threshold is observed with a statistical significance greater than 10 sigma in the processes e(+)e(-) -> D+D*(-)pi(0) + c.c. and e(+)e(-) -> D-0(D) over bar*(0)pi(0) + c.c. at root s = 4.226 and 4.257 GeV in the BESIII experiment. The structure is denoted as Z(c)(3885)(0). Assuming the presence of a resonance, its pole mass and width are determined to be [3885.7(-5.7)(+4.3) (stat) +/- 8.4(syst)] MeV/c(2) and [35(-12)(+11) (stat) +/- 15(syst)] MeV, respectively. The Born cross sections are measured to be sigma[e(+)e(-) -> Z(c)(3885)(0)pi(0); Z(c)(3885)(0) -> D (D) over bar*] = [77 +/- 13(stat) +/- 17(syst)] pb at 4.226 GeV and [47 +/- 9(stat) +/- 10(syst)] pb at 4.257 GeV. The ratio of decay rates B[Z(c)(3885)(0) -> D+D*(-) + c.c.]/B[Z(c)(3885)(0) -> D-0(D) over bar*(0) + c.c.] is determined to be 0.96 +/- 0.18(stat) +/- 0.12(syst), consistent with no isospin violation in the process, Z(c)(3885)(0) -> D (D) over bar*.
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9.
  • Ablikim, M., et al. (author)
  • Study of D+ -> K-pi(+)e(+)nu(e)
  • 2016
  • In: PHYSICAL REVIEW D. - 2470-0010. ; 94:3
  • Journal article (peer-reviewed)abstract
    • We present an analysis of the decay D+ -> K-pi(+)e(+)nu(e) based on data collected by the BESIII experiment at the psi(3770) resonance. Using a nearly background-free sample of 18262 events, we measure the branching fraction B(D+ -> K-pi+e+nu e) = (3.77 +/- 0.03 +/- 0.08)%. For 0.8 < m(K pi) < 1.0 GeV/c(2), the partial branching fraction is B(D+ -> K-pi+e+nu e)([0.8,1.0]) = (3.39 +/- 0.03 +/- 0.08)%. A partial wave analysis shows that the dominant (K) over bar* (892)degrees component is accompanied by an S-wave contribution accounting for (6.05 +/- 0.22 +/- 0.18)% of the total rate and that other components are negligible. The parameters of the (K) over bar* (892)degrees resonance and of the form factors based on the spectroscopic pole dominance predictions are also measured. We also present a measurement of the (K) over bar* (892)degrees helicity basis form factors in a model-independent way.
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10.
  • Ablikim, M., et al. (author)
  • Amplitude analysis of D0 → K -π+π+π-
  • 2017
  • In: Physical Review D. - 2470-0010 .- 2470-0029. ; 95:7
  • Journal article (peer-reviewed)abstract
    • We present an amplitude analysis of the decay D0 → K -π+π+π- based on a data sample of 2.93  fb−1 acquired by the BESIII detector at the ψ(3770) resonance. With a nearly background free sample of about 16000 events, we investigate the substructure of the decay and determine the relative fractions and the phases among the different intermediate processes. Our amplitude model includes the two-body decays D0 → ¯K*0ρ0, D0 → K−a+1(1260) and D0 → K−1(1270)π+, the three-body decays D0 →¯K*0π+π− and D0 → K−π+ρ0, as well as the four-body nonresonant decay D0 → K−π+π+π−. The dominant intermediate process is D0 → K−a+1(1260), accounting for a fit fraction of 54.6%.
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  • Result 1-10 of 1893
Type of publication
journal article (1662)
conference paper (58)
research review (24)
other publication (7)
book chapter (5)
editorial collection (1)
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doctoral thesis (1)
licentiate thesis (1)
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Type of content
peer-reviewed (1815)
other academic/artistic (64)
Author/Editor
Liu, Y. (662)
Zhou, B. (653)
Fox, H. (643)
Meyer, J. (643)
Price, D. (643)
Quadt, A. (642)
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Kupco, A. (641)
Lokajicek, M. (641)
Sawyer, L. (641)
Snyder, S. (641)
Stark, J. (641)
Watts, G. (641)
Abbott, B. (640)
Brandt, A. (640)
Burdin, S. (640)
Evans, H. (640)
Hubacek, Z. (640)
Khanov, A. (640)
Neal, H. A. (640)
Pleier, M. -A. (640)
Qian, J. (640)
Borissov, G. (639)
Brock, R. (639)
Cooke, M. (639)
Fiedler, F. (639)
Kehoe, R. (639)
Simak, V. (639)
Strauss, M. (639)
Hohlfeld, M. (638)
Schwienhorst, R. (638)
Shabalina, E. (638)
Rizatdinova, F. (637)
Filthaut, F. (636)
Sanders, M. P. (636)
Severini, H. (636)
Tsybychev, D. (636)
Nunnemann, T. (635)
Zhu, J. (635)
Denisov, S. P. (631)
Schamberger, R. D. (631)
Han, L. (630)
Skubic, P. (628)
Zieminska, D. (627)
Grivaz, J. -F. (626)
Gutierrez, P. (625)
Brandt, O. (621)
Vokac, P. (621)
Chen, X. (612)
Zhemchugov, A. (605)
Jin, S. (603)
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University
Uppsala University (905)
Lund University (509)
Royal Institute of Technology (434)
Stockholm University (422)
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University of Gothenburg (116)
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Umeå University (114)
Chalmers University of Technology (91)
Linköping University (83)
Högskolan Dalarna (16)
Luleå University of Technology (14)
Malmö University (14)
Swedish University of Agricultural Sciences (13)
Örebro University (12)
Mid Sweden University (10)
University of Skövde (10)
Linnaeus University (7)
Stockholm School of Economics (5)
Mälardalen University (3)
Swedish Museum of Natural History (3)
Halmstad University (2)
University of Gävle (2)
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Jönköping University (2)
RISE (2)
Karlstad University (2)
VTI - The Swedish National Road and Transport Research Institute (2)
Södertörn University (1)
Blekinge Institute of Technology (1)
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Language
English (1893)
Research subject (UKÄ/SCB)
Natural sciences (1042)
Medical and Health Sciences (341)
Engineering and Technology (149)
Social Sciences (13)
Agricultural Sciences (8)
Humanities (1)

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