R. E. Pepper, S. V. Chasteen, S. J. Pollock, and K. K. Perkins. Observations on student difficulties with mathematics in upper-division Electricity and Magnetism.  Phys. Rev. Spec. Top.-Phys. Educ. R 8, 010111 (2012). PDF

S. V. Chasteen, R. E. Pepper, S. J. Pollock, K. K. Perkins. The Colorado Upper-Division Electrostatics (CUE) Diagnostic:   A conceptual assessment for the junior level.  Submitted.

R. E. Pepper, S. V. Chasteen, S. J. Pollock, and K. K. Perkins. Facilitating Faculty Conversations: Development of Consensus Learning Goals.  PERC Proceedings 2011, AIP Press.  PDF

S. J. Pollock, R. E. Pepper, and A. D. Marino. Issues and progress in transforming a middle-division Classical Mechanics/Math Methods course.  PERC Proceedings 2011, AIP Press.  PDF

S. J. Pollock, R. E. Pepper, S. V. Chasteen, and K. K. Perkins. Multiple Roles of Assessment In Upper-Division Physics Course Reforms.  PERC Proceedings 2011, AIP Press.  PDF

S. V. Chasteen, S. J. Pollock, R. E. Pepper, and K. K. Perkins. "Thinking Like a Physicist": A Multi-Semester Case Study of Junior-level Electricity & Magnetism.  Submitted.

R. E. Pepper, S. V. Chasteen, S. J. Pollock, and K. K. Perkins.  Our best juniors still struggle with Gauss's Law: Characterizing their difficulties.  PERC Proceedings 2010, AIP Press (2010). PDF

S. V. Chasteen, R. E. Pepper, S. J. Pollock, K. K. Perkins.  But Does It Last? Sustaining a Research-Based Curriculum in Upper-Division Electricity & Magnetism.  PERC Proceedings 2011, AIP Press. PDF

R. E. Pepper, M. Roper, S. Ryu, P. Matsuidara, and H. A. Stone. Sessile suspension feeders can increase nutrient uptake by feeding at an angle.  In preparation (preprint available).

R. E. Pepper, M. Roper, S. Ryu, P. Matsuidara, and H. A. Stone.  Nearby boundaries create eddies near microscopic filter feeders.  J. R. Soc. Interface 7, 851-862 (2010). PDF      

J. de Ruiter, R. E. Pepper, and H. A. Stone.  Thickness of an expanding lamella near the splash threshold.   Phys. Fluids 22, 022104 (2010). PDF

M. Roper, R. E. Pepper, M. Brenner, A. Pringle.  Explosively launched spores of ascomycete fungi have drag minimizing shapes. PNAS 105, 20583 (2008). PDF

R. E. Pepper, L. Courbin, and H. A. Stone.  Splashing on elastic membranes: the importance of early-time dynamics.  Phys. Fluids 20, 082103 (2008). PDF

Thesis

Splashing, Feeding, Contracting: Drop impact and fluid dynamics of Vorticella. August 2009. PDF

Invited Presentations

R. E. Pepper, Microscopic filter feeders near boundaries: feeding challenges and strategies.  February, 2011 - Mt. Holyoke Department of Physics Seminar Series.

R. E. Pepper, S. V. Chasteen, S. J. Pollock, and K. K. Perkins.  Upper-Division Electricity and Magnetism: Students' Ideas and Difficulties.  July, 2010 - American Association of Physics Teachers Summer Meeting, Portland, Oregon. 

R. E. Pepper, M. Roper, S. Ryu, P. Matsuidara, and H. A. Stone. . Microscopic filter feeders near boundaries: feeding restrictions and strategies.  December 2009 - University of Western Australia.    

R. E. Pepper. Student interviews as a way to identify student misconceptions.  April 2009 - University of Colorado at Boulder.

Contributed Presentations

R. E. Pepper, M. Roper, S. Ryu, P. Matsuidara, N. Matsumoto, M. Nagai, and H. A. Stone. Microscopic filter feeders near boundaries: feeding restrictions and strategies due to eddies.  January 2012 - Society for Integrative and Comparative Biology Annual Meeting, Charleston, SC, oral presentation.

R. E. Pepper, S.V. Chasteen, M. Dubson, K. K. Perkins, and S. J. Pollock. Applying the results of education research to help students learn more.  November 2011 - 64th APS Meeting of the Division of Fluid Dynamics, Baltimore, oral presentation.

R. E. Pepper.  Microscopic filter feeders at an angle to nearby boundaries: Feeding restrictions and strategies.  January 2011 - Aspen Ocean Symposium: Microenvironments modulating biological interactions in the ocean, Aspen, poster presentation.

R. E. Pepper, M. Roper, S. Ryu, P. Matsuidara, and H. A. Stone. Microscopic filter feeders at an angle to nearby boundaries: Feeding restrictions and strategies.  November 2010 - 63th APS Meeting of the Division of Fluid Dynamics, Long Beach, oral presentation.

R. E. Pepper, S.V. Chasteen, S. J. Pollock, M. Dubson, P. Beale, and K. K. Perkins.  New Ways of Teaching Upper-division courses: Descriptions and Results.  November 2010 - 63th APS Meeting of the Division of Fluid Dynamics, Long Beach, oral presentation.

R. E. Pepper, S.V. Chasteen, S. J. Pollock, and K. K. Perkins.  Our best juniors still struggle with Gauss's Law: Characterizing their difficulties. August 2010 - Upper Division Physics Education Research Workshop 2010, Crawfordsville, Indiana, poster presentation.

R. E. Pepper, S.V. Chasteen, S. J. Pollock, and K. K. Perkins.  Our best juniors still struggle with Gauss's Law: Characterizing their difficulties. July 2010 -  Physics Education Research Conference 2010, Portland, poster presentation.

K.K. Perkins, S. Pollock, S. Chasteen, S. Goldhaber, R. E. Pepper, M. Dubson, and P. Beale.  Colorado's Transformed Upper-Division E&M and QM courses: Description and Results.  July, 2010 - American Association of Physics Teachers Summer Meeting, Portland, oral presentation. 

R. E. Pepper, M. Roper, S. Ryu, P. Matsuidara, and H. A. Stone. Microscopic filter feeders near boundaries.  November 2009 - 62th APS Meeting of the Division of Fluid Dynamics, Minneapolis, oral presentation.

R. E. Pepper, L. Courbin, and H. A. Stone, Splashing on elastic membranes: the importance of early time dynamics. June 2009 - Fluid & Elasticity 2009, Carry-le-Rouet, France, oral presentation.

R. E. Pepper, M. Roper, and H. A. Stone. Flow field around Vorticella: Mixing with a reciprocal stroke.  November 2008 - 61th APS Meeting of the Division of Fluid Dynamics, San Antonio, oral presentation.

R. E. Pepper, L. Courbin, and H. A. Stone, Splashing on elastic membranes: the importance of early time dynamics. November 2007 - 60th APS Meeting of the Division of Fluid Dynamics, Salt Lake City, oral presentation.

R. E. Pepper, L. Courbin, and H. A. Stone.  Tuning of a splash on elastic membranes.  July 2007 - Boulder School for Condensed Matter and Material Physics, University of Colorado, Boulder, poster presentation.

R. E. Pepper, L. Courbin, and H. A. Stone.  Tuning of a splash on elastic membranes. November 2006 - 59th APS Meeting of the Division of Fluid Dynamics, Tampa, oral presentation.