As an adolescent I aspired to lasting fame, I craved factual certainty,
and I thirsted for a meaningful vision of human life -- so I became a scientist.
This is like becoming an archbishop so you can meet girls.
---M. Cartmill

• DP Varn, GS Canright & JP Crutchfield, "Inferring planar disorder in close-packed structures via ε-machine spectral reconstruction theory: Examples from simulated diffraction spectra," To appear in: Acta Crystallographica Section A: Foundations of Crystallography 69(4), pp. 413-426 (2013b). [times cited: 0] [abstract]
• DP Varn, GS Canright & JP Crutchfield, "ε-Machine spectral reconstruction theory: A direct method for inferring planar disorder and structure from X-ray diffraction studies," Acta Crystallographica Section A: Foundations of Crystallography 69(2), pp. 197-206 (2013a). [times cited: 0] [abstract]
• K Haerian, DP Varn, S Vaidya, L Ena, HS Chase & C Friedman, "Detection of pharmacovigilance-related adverse events using electronic health records and automated methods," Clinical Pharmacology & Therapeutics 92(2), pp. 228-234 (2012a). [times cited: 4] [abstract]
• DP Varn, GS Canright & JP Crutchfield, "Inferring planar disorder in close-packed structures via ε-machine spectral reconstruction theory: Structure and intrinsic computation in zinc sulphide," Acta Crystallographica B: Structural Science 63(2), pp. 169-182 (2007a). [times cited: 4] [abstract]
• DP Varn & JP Crutchfield, "From finite to infinite range order via annealing: The causal architecture of deformation faulting in annealed close-packed crystals," Physics Letters Section A: General, Atomic & Solid State Physics 324/4, pp. 299-307 (2004a). [times cited: 12] [abstract]
• DP Varn, GS Canright & JP Crutchfield, "Discovering planar disorder in close-packed structures from x-ray diffraction: Beyond the fault model," Physical Review B: Condensed Matter & Materials Physics 66, pp. 174110 (2002a). [times cited: 18] [abstract]
• DP Varn & GS Canright, "The crystal problem for polytypes," Acta Crystallographica Section A: Foundations of Crystallography 57(1), pp. 4-19 (2001a). [times cited: 9] [abstract]

Thesis:

• DP Varn, Language Extraction from Zinc Sulphide, PhD Thesis, University of Tennessee, Knoxville, (2001b). [abstract]

• "The Effect of Geospatial Movement on Career Trajectories for a Cohort of Physicists as Measured by Institutional Placement: Connecting Model Parameters to Empirical Data," Scientific Workforce & Modelling Symposium, George Washington University, Biostatistics Center, (Rockville, MD) March 2013.
• "A Multi-Agent Dynamical Systems Approach to Modelling Competition and Cooperation between Scientists," Scientific Workforce & Modelling Symposium, George Washington University, Biostatistics Center, (Rockville, MD) September 2012.
  
• "Modelling the Scientific Workforce: A Progress Report," Scientific Workforce & Modelling Symposium, George Washington University Biostatistics Center, (Rockville, MD) April 2012.
• "Structural Complexity in Disordered, Layered Crystals," Seminar, Max-Planck-Institut für Mathematik in den Naturwissenschaften, (Leipzig, Germany) May 2006. [abstract]
• "Structural Complexity in Disordered, Layered Crystals," Seminar, Center for Nonlinear Studies, Los Alamos National Laboratory, (Los Alamos, New Mexico) April 2006. [abstract]
• "Structural Complexity in Disordered, Layered Crystals," Science of Complex Systems Seminar, Center for Computational Science & Engineering, University of California, Davis (Davis, California) February 2006. [abstract]
• "Methods of Pattern Inference from Symbol Sequences: Practical Computational Mechanics," Nonlinear Time Series Analysis Seminar, Max-Planck-Institut für Physik komplexer Systeme (Dresden, Germany) February 2005. [abstract]
• "Pattern, Prediction and Computation in One-Dimensional Sequences," Nonlinear Time Series Analysis Seminar, Max-Planck-Institut für Physik komplexer Systeme (Dresden, Germany) January 2005. [abstract]
• "A Novel Approach to Discovering and Describing Planar Disorder in Layered Materials from their Diffraction Spectra," Nonlinear Dynamics and Complex Systems Seminar, University of Illinois (Urbana-Champaign, IL) April 2004. [abstract]
• "Pattern Discovery from Power Spectra: An Overview and Report on Recent Developments," Dynamics of Learning Seminar, Santa Fe Institute (Santa Fe, NM) March 2004. [abstract]
• "A Novel Approach to Discovering and Describing Planar Disorder in Close-Packed Structures from X-ray Diffraction Spectra," Seminar, Center for the Study of Complex Systems, University of Michigan (Ann Arbor, MI) November 2002. [abstract]
• "Language Extraction from Zinc Sulphide," Dynamics of Learning Seminar, Santa Fe Institute (Santa Fe, NM) November 2001.
• "Language Extraction from Zinc Sulphide ~or~ Talking to Rocks Isn't Just for Mystics Anymore," Researchers' Colloquium, Santa Fe Institute (Santa Fe, NM) April 2001.
• "The Crystal Problem for Polytypes," Condensed Matter Seminar, Indiana University (Bloomington, IN) April 2000.

Contributed Research Presentations

• "Inferring Spatial Patterns from Power Spectra," Seminar, 89^th Statistical Mechanics Conference, Rutgers University (New Brunswick, NJ) May 2003.

• "Discovering Planar Disorder in Close-Packed Structures," Spring Science Symposium, Santa Fe Institute (Santa Fe, NM), May 2002.
  
• "Language Extraction from Zinc Sulphide," Dynamics Days 2002 (Baltimore, MD), January 2002.