All Stories

  1. RLC resonator with diode nonlinearity: Bifurcation comparison of numerical predictions and circuit measurements

    Article • Chaos An Interdisciplinary Journal of Nonlinear Science, July 2024, American Institute of Physics

    Edward Hellen

  2. The effect of characteristic times on collective modes of two quorum sensing coupled identical ring oscillators

    Article • Chaos Solitons & Fractals, October 2021, Elsevier

    Edward Hellen

  3. Emergence of multistability and strongly asymmetric collective modes in two quorum sensing coupled identical ring oscillators

    Article • Chaos An Interdisciplinary Journal of Nonlinear Science, December 2020, American Institute of Physics

    Evgeny Volkov, Edward Hellen

  4. Self-Organized Quasiperiodicity and Multistability in Dynamical Systems of different Nature

    Article • September 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Edward Hellen

  5. How to couple identical ring oscillators to get quasiperiodicity, extended chaos, multistability, and the loss of symmetry

    Article • Communications in Nonlinear Science and Numerical Simulation, September 2018, Elsevier

    Edward Hellen

  6. Electronic circuit analog of synthetic genetic networks: Revisited

    Article • The European Physical Journal Special Topics, June 2017, Springer Science + Business Media

    Edward Hellen

  7. Flexible dynamics of two quorum-sensing coupled repressilators

    Article • February 2017, American Physical Society (APS)

    Edward Hellen

  8. Noise-Aided Logic in an Electronic Analog of Synthetic Genetic Networks

    Article • PLoS ONE, October 2013, PLOS

    Edward Hellen

  9. Electronic Implementation of a Repressilator with Quorum Sensing Feedback

    Article • PLoS ONE, May 2013, PLOS

    Edward Hellen

  10. An Electronic Analog of Synthetic Genetic Networks

    Article • PLoS ONE, August 2011, PLOS

    Edward Hellen

  11. Modeling excitable systems: Reentrant tachycardia

    Article • American Journal of Physics, December 2009, American Association of Physics Teachers (AAPT)

    Edward Hellen

  12. Nonlinear damping of the LC circuit using antiparallel diodes

    Article • American Journal of Physics, April 2007, American Association of Physics Teachers (AAPT)

    Edward Hellen

  13. Padé–Laplace analysis of signal averaged voltage decays obtained from a simple circuit

    Article • American Journal of Physics, August 2005, American Association of Physics Teachers (AAPT)

    Edward Hellen

  14. Real-time finite difference bifurcation diagrams from analog electronic circuits

    Article • American Journal of Physics, March 2004, American Association of Physics Teachers (AAPT)

    Edward Hellen

  15. Verifying the diode–capacitor circuit voltage decay

    Article • American Journal of Physics, July 2003, American Association of Physics Teachers (AAPT)

    Edward Hellen

  16. Transient kinetics and thermodynamics of anthroylouabain binding to Na/K-ATPase

    Article • Biophysical Chemistry, April 1998, Elsevier

    Edward Hellen

  17. Nucleotide binding to IAF-labelled measured by steady state fluorescence quenching by TNP-ADP

    Article • Biophysical Chemistry, December 1997, Elsevier

    Edward Hellen

  18. Transient kinetics of substrate binding to measured by fluorescence quenching

    Article • Biophysical Chemistry, December 1997, Elsevier

    Edward Hellen

  19. Binding of TNP‐ATP to IAF‐Labeled Na+/K+‐ATPase as Examined by Fluorescence Quenchinga

    Article • Annals of the New York Academy of Sciences, November 1997, Wiley

    Edward Hellen

  20. Fluorescence Quenching of IAF‐Na+/K+ ‐ATPase via Energy Transfer to TNP‐Labeled Nucleotidea

    Article • Annals of the New York Academy of Sciences, November 1997, Wiley

    Edward Hellen

  21. Myosin head rotation in muscle fibers measured using polarized fluorescence photobleaching recovery

    Article • Journal of Fluorescence, December 1995, Springer Science + Business Media

    Edward Hellen

  22. Insulation of a G protein-coupled receptor on the plasmalemmal surface of the pancreatic acinar cell.

    Article • The Journal of Cell Biology, August 1995, Rockefeller University Press

    Edward Hellen

  23. Saturation effects in polarized fluorescence photobleaching recovery and steady state fluorescence polarization

    Article • Biophysical Journal, March 1994, Elsevier

    Edward Hellen

  24. Kinetics of epidermal growth factor/receptor binding on cells measured by total internal reflection/fluorescence recovery after photobleaching

    Article • Journal of Fluorescence, June 1991, Springer Science + Business Media

    Edward Hellen

  25. An automatic focus/hold system for optical microscopes

    Article • Review of Scientific Instruments, December 1990, American Institute of Physics

    Edward Hellen

  26. Chapter 15 Emission of Fluorescence at an Interface

    Article • January 1989, Elsevier

    Edward Hellen

  27. Biomolecular Motion On Surfaces And Membranes

    Article • March 1987, SPIE

    Edward Hellen

  28. Fluorescence emission at dielectric and metal-film interfaces

    Article • Journal of the Optical Society of America B, March 1987, Optical Society of America (OSA)

    Edward Hellen