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1.
  • 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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  • Menkveld, Albert J., et al. (author)
  • Nonstandard Errors
  • 2024
  • In: JOURNAL OF FINANCE. - : Wiley-Blackwell. - 0022-1082 .- 1540-6261. ; 79:3, s. 2339-2390
  • Journal article (peer-reviewed)abstract
    • In statistics, samples are drawn from a population in a data-generating process (DGP). Standard errors measure the uncertainty in estimates of population parameters. In science, evidence is generated to test hypotheses in an evidence-generating process (EGP). We claim that EGP variation across researchers adds uncertainty-nonstandard errors (NSEs). We study NSEs by letting 164 teams test the same hypotheses on the same data. NSEs turn out to be sizable, but smaller for more reproducible or higher rated research. Adding peer-review stages reduces NSEs. We further find that this type of uncertainty is underestimated by participants.
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9.
  • Bravo, L, et al. (author)
  • 2021
  • swepub:Mat__t
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10.
  • Tabiri, S, et al. (author)
  • 2021
  • swepub:Mat__t
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  • Result 1-10 of 188
Type of publication
journal article (68)
Type of content
peer-reviewed (179)
other academic/artistic (1)
Author/Editor
Bai, Y. (170)
Antonelli, M. (169)
Abi, B. (168)
Abramowicz, H. (168)
Abreu, H. (168)
Adelman, J. (168)
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Adye, T. (168)
Akimoto, G. (168)
Akimov, A. V. (168)
Aleksa, M. (168)
Alexandre, G. (168)
Alhroob, M. (168)
Allport, P. P. (168)
Amako, K. (168)
Amelung, C. (168)
Anastopoulos, C. (168)
Angerami, A. (168)
Antonaki, A. (168)
Arai, Y. (168)
Arguin, J-F. (168)
Arnaez, O. (168)
Asquith, L. (168)
Assamagan, K. (168)
Azuma, Y. (168)
Bachacou, H. (168)
Bachas, K. (168)
Backes, M. (168)
Baker, O. K. (168)
Banas, E. (168)
Barbero, M. (168)
Barillari, T. (168)
Barisonzi, M. (168)
Barklow, T. (168)
Bauer, F. (168)
Beau, T. (168)
Beck, H. P. (168)
Beckingham, M. (168)
Bella, G. (168)
Beltramello, O. (168)
Benary, O. (168)
Benekos, N. (168)
Benhammou, Y. (168)
Bentvelsen, S. (168)
Berge, D. (168)
Beringer, J. (168)
Bernius, C. (168)
Berry, T. (168)
Besson, N. (168)
Bethke, S. (168)
Biesiada, J. (168)
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University
Lund University (43)
Uppsala University (40)
Stockholm University (40)
Royal Institute of Technology (37)
Karolinska Institutet (15)
University of Gothenburg (4)
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Umeå University (4)
Linköping University (3)
Swedish University of Agricultural Sciences (2)
Stockholm School of Economics (1)
Chalmers University of Technology (1)
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Language
English (188)
Research subject (UKÄ/SCB)
Natural sciences (41)
Medical and Health Sciences (11)
Social Sciences (1)

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