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Träfflista för sökning "WFRF:(Zhang Chen) "

Search: WFRF:(Zhang Chen)

  • Result 1-10 of 3680
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  • 2019
  • Journal article (peer-reviewed)
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  • 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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  • 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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  • Ablikim, M., et al. (author)
  • Amplitude analysis of the chi(c1) -> eta pi(+)pi(-) decays
  • 2017
  • In: Physical Review D. - : AMER PHYSICAL SOC. - 2470-0010 .- 2470-0029. ; 95:3
  • Journal article (peer-reviewed)abstract
    • Using 448.0 x 10(6) psi(3686) events collected with the BESIII detector, an amplitude analysis is performed for psi(3686) -> gamma chi(c1), chi(c1) ->eta pi(+)pi(-) decays. The most dominant two- body structure observed is a(0)(980)(+/-) pi(-/+); a(0)(980)(+/-) -> eta pi(+/-.) line shape is modeled using a dispersion relation, and a significant nonzero a(0) (980) coupling to the eta'pi channel is measured. We observe chi(c1) -> a(2)(1700)pi production for the first time, with a significance larger than 17 sigma. The production of mesons with exotic quantum numbers, J(PC) = 1(-+), is investigated, and upper limits for the branching fractions chi(c1) -> pi(1)(1400)(+/-)pi(-/+) , chi(c1) -> pi(1)(1600)(+/-)pi(-/+) and chi(c1) -> pi 1(2015)(+/-)pi(-/+) with subsequent pi(1)(X)(+/-) -> eta pi(+/-) decay, are determined.
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10.
  • Ablikim, M., et al. (author)
  • Amplitude Analysis of the Decays eta ' -> pi(+)pi(-)pi(0) and eta' -> pi(0)pi(0)pi(0)
  • 2017
  • In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 118:1
  • Journal article (peer-reviewed)abstract
    • Based on a sample of 1.31 x 10(9) J/Psi events collected with the BESIII detector, an amplitude analysis of the isospin-violating decays eta' -> pi(+)pi(-)pi(0) and eta' -> pi(0)pi(0)pi(0) is performed. A significant P-wave contribution from eta' -> rho(+/-)eta(-/+) is observed for the first time in eta' -> pi(+)pi(-)pi(0). The branching fraction is determined to be B(eta' -> rho(+/-)pi(-/+)) = (7.44 +/- 0.60 +/- 1.26 +/- 1.84) x 10(-4), where the first uncertainty is statistical, the second systematic, and the third model dependent. In addition to the nonresonant S-wave component, there is a significant sigma meson component. The branching fractions of the combined S-wave components are determined to be B(eta' -> pi(+)pi(-)pi(0))(S) = (37.63 +/- 0.77 +/- 2.22 +/- 4.48) x 10(-4) and B(eta' -> pi(0)pi(0)pi(0)) = (35.22 +/- 0.82 +/- 2.54) x 10(-4), respectively. The latter one is consistent with previous BESIII measurements.
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  • Result 1-10 of 3680
Type of publication
journal article (3205)
conference paper (224)
research review (67)
book chapter (16)
doctoral thesis (10)
other publication (9)
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reports (3)
licentiate thesis (3)
patent (3)
book (2)
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Type of content
peer-reviewed (3522)
other academic/artistic (136)
pop. science, debate, etc. (4)
Author/Editor
Chen, X. (653)
Cetin, S. A. (603)
Jin, S. (603)
Ouyang, Q. (597)
Cakir, O. (592)
Liu, J. B. (567)
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Liu, D. (564)
Chen, S. (536)
Berger, N. (525)
Chen, H. (514)
Peters, K. (504)
Liu, Y. (503)
Hill, J. C. (498)
Vrba, V. (496)
Lenzi, B. (493)
Kim, S. H. (492)
Milov, A. (492)
Ellinghaus, F. (491)
Bai, Y. (489)
Wang, J. (489)
Wang, H. (487)
Li, H. (484)
Wang, C. (481)
Oh, S. H. (480)
Angerami, A. (476)
Donadelli, M. (476)
Werner, M. (476)
Wu, X. (475)
Jones, G. (473)
Price, D. (473)
Ferrer, A. (472)
Brau, J. E. (471)
Francis, D. (471)
Moore, R. W. (471)
Nakamura, K. (471)
Seifert, F. (471)
Pallin, D. (470)
Clark, A. (469)
Erdmann, J. (469)
Kado, M. (469)
King, M. (469)
Kolanoski, H. (469)
Leitner, R. (469)
Lokajicek, M. (469)
Lucotte, A. (469)
Quadt, A. (469)
Rembser, C. (469)
Robson, A. (469)
Romaniouk, A. (469)
Tollefson, K. (469)
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University
Uppsala University (980)
Karolinska Institutet (797)
Lund University (787)
Royal Institute of Technology (755)
Stockholm University (465)
University of Gothenburg (298)
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Chalmers University of Technology (294)
Linköping University (272)
Umeå University (182)
RISE (49)
Mid Sweden University (47)
Luleå University of Technology (46)
Mälardalen University (43)
Högskolan Dalarna (32)
Malmö University (25)
Swedish University of Agricultural Sciences (24)
Örebro University (21)
Linnaeus University (19)
Swedish Museum of Natural History (19)
University of Borås (11)
Stockholm School of Economics (8)
Halmstad University (7)
University of Gävle (6)
University of Skövde (6)
Karlstad University (5)
Södertörn University (3)
Kristianstad University College (2)
University West (2)
VTI - The Swedish National Road and Transport Research Institute (2)
The Swedish School of Sport and Health Sciences (1)
Blekinge Institute of Technology (1)
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Language
English (3659)
Chinese (13)
Undefined language (8)
Research subject (UKÄ/SCB)
Natural sciences (1805)
Engineering and Technology (646)
Medical and Health Sciences (601)
Agricultural Sciences (34)
Social Sciences (29)
Humanities (4)

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