Persuasive propaganda

31 December 2015

GraphPad’s advice regarding when to plot SD versus SEM: If you want to create persuasive propaganda: If your goal is to emphasize small and unimportant differences in your data, show your error bars as SEM, and hope that your readers think they are SD. If your goal is to cover-up large differences, show the error bars as the standard deviations for the groups, and hope that your readers think they are a standard errors.

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Stephen Heard on post-publication peer review: This seems to me a huge irony about proposals to replace pre-publication with post-publication peer review. At first glance, such proposals seem like the ultimate democratization: everyone’s manuscript on an equal footing. My manuscript and yours, a Nobel prize-winner’s and the rankest amateur’s, all available for readers whose comments will bubble the very best to the top. But this democratization will, I worry, turn out to be self-disrupting.

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Recent Publications

  • Kerim B. Kaylan, Ian C. Berg, Matthew J. Biehl, Aidan Brougham-Cook, Ishita Jain, Sameed M. Jamil, Lauren H. Sargeant, Nicholas J. Cornell, Lori T. Raetzman, and Gregory H. Underhill. “Spatial patterning of liver progenitor cell differentiation mediated by cellular contractility and Notch signaling.” eLife 7: e38536. Abstract
  • Matthew J. Biehl, Kerim B. Kaylan, Robert J. Thompson, Rachel V. Gonzalez, Karen E. Weis, Gregory H. Underhill, and Lori T. Raetzman. “Cellular fate decisions in the developing female anteroventral periventricular nucleus are regulated by canonical Notch signaling.” Developmental Biology 442: 87-100. Abstract
  • Roberto C. Andresen Eguiluz, Kerim B. Kaylan, Gregory H. Underhill, and Deborah E. Leckband. “Substrate stiffness and VE-cadherin mechano-transduction coordinate to regulate endothelial monolayer integrity.” Biomaterials 140: 45-57. Abstract


I am an MD/PhD student at the University of Illinois College of Medicine. My doctoral work focused on tissue engineering approaches to study stem and progenitor cell fate in the developing liver. Learn more.



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