Publications

Refereed Publications

  1. H. Guo, B. Gala Lopez, I. P. Alwayn and K. C. Hewitt (2024). Liver discard rate due to conservative estimations of steatosis: an inference-based approach. Transplantation (TPA-2024-0964, submitted June 17, 2024, in first revision).
  2. H. Guo, A. Stueck, J. Doppenberg, Y. Chae, A. Tikhomirov, H. Zeng, M.  Engelse, B. Gala-Lopez, A.  Mahadevan-Jansen, I. P. Alwayn, A.  Locke and K. C. Hewitt (2024). Evaluation of minimum-to-severe global and macrovesicular steatosis in human liver specimens: a portable ambient light-compatible spectroscopic probe. J. Biophotonics __, e202400292 (2024) https://doi.org/10.1002/jbio.202400292
  3. H. Guo, V. Zions, B. Law and K. C. Hewitt. Potential of Raman-Reflectance Combination in Quantifying Liver Steatosis and Fat Droplet Size: Evidence From Monte Carlo Simulations and Phantom Studies. J. Biophotonics 17, e202400156. (2024) 10.1002/jbio.202400156
  4. H. Guo, A. B. Tikhomirov, A. Mitchell, I. P. J. Alwayn, H. Zeng and K. C. Hewitt. Real-time assessment of liver fat content using a filter-based Raman system, operating under ambient light through lock-in amplification. Biomedical Optics Express 13(10),5231-5245 (2022) 10.1364/BOE.467849
  5. M. L. Castilho, V. P. S. Jesus, P. F. A. Viera, K. C. Hewitt and L. Raniero. Chlorin e6-EGF conjugated gold nanoparticles as a therapeutic agent for triple negative breast cancer. Photodiagnosis and Photodynamic Therapy 33, 102186 (2021) 10.1016/j.pdpdt.2021.102186
  6. *Y. E. Monfared, T. M. Shaffer, S. S. Gambhir and K. C. Hewitt. Continuous-Wave Coherent Raman Spectroscopy via Plasmonic Enhancement. Scientific Reports 9, 12092 (2019) 10.1038/s41598-019-48573-8
  7. T. Bhattacharjee, *M. L. Castilho; I. Oliveira, V. Jesus; K. C. Hewitt and L. Raniero. FTIR study of secondary structure changes in Epidermal Growth Factor by gold nanoparticle conjugation. Biochimica et Biophysica Acta (BBA) – General Subjects 1862 (3), 495-500 (2018) 10.1016/j.bbagen.2017.11.009
  8. *C. L. D. Lee and K. C. Hewitt, First Demonstration of Surface Enhanced – Stimulated Raman Spectroscopy (SE-SRS) using low-power CW sources. Faraday Discuss. 205, 227-232 (2017) 10.1039/C7FD00137A
  9. Aizpurua, J ; Arnolds, H ; Baumberg, J ; Bruzas, I ; Chikkaraddy, R ; Chisanga, M ; Dawson, P ; Deckert, V ; Delfino, I ; de Nijs, B ; Di Martino, G ; Edel, J ; Fleming, H ; Gawinkowski, S ; Giorgis, F ; Goodacre, R ; Graham, D ; Hardy, M ; Heck, C ; Heeg, S ; Hewitt, K ; Jamieson, L ; Keeler, A ; Krolikowska, A ; Kuttner, C ; Lidgi-Guigui, N ; Lightner, C ; Lombardi, J ; Mahajan, S ; Sabanes, NM ; Masson, JF ; Mueller, NS ; Muhamadali, H ; Murakoshi, K ; Popp, J ; Porter, M ; Reich, S  ; Schatz, G  ; Tian, ZQ ; Tripathi, A ; Van Duyne, R ; Wang, XP ; Wark, A ; Willets, K ; Willner, M. Ultrasensitive and towards single molecule SERS: general discussion. Faraday Discuss. 205, 291-330 (2017)
  10. L.  Vieira, *M.  L. Castilho, I. Ferreira, J. Ferreira-Strixino, K. C. Hewitt and L. Raniero. Synthesis and characterization of gold nanostructured Chorin e6 for Photodynamic Therapy. Photodiagnosis and Photodynamic Therapy 18, 6-11 (2017) 10.1016/j.pdpdt.2016.12.012
  11. *M. L. Castilho, K. C. Hewitt and L. Raniero. FT-IR characterization of a theranostic nanoprobe for photodynamic therapy and Epidermal Growth Factor Receptor targets. Sensors & Actuators: B. Chemical 240, 903-908 (2017) 10.1016/j.snb.2016.09.011
  12. *C. L. D. Lee, *S. A. Fashir, *M. L. Castilho, *M. A. Hupman, L. J.  Raniero, I. Alwayn and K. C. Hewitt. EGFR-specific nanoprobe biodistribution in mouse models. Journal of Pharmaceutical Sciences 105, 25-30 (2016) 10.1016/j.xphs.2015.10.005
  13. K. C. Hewitt, *J. G. Rad, H. C. McGregor, E. Browers, H. Sapp, M. Short, *S. B. Fashir, H. Zeng and I. P. Alwayn. Accurate assessment of liver steatosis in animal models using a high throughput Raman fiber optic probe.  Analyst 140, 6602 – 6609 (2015) 10.1039/c5an01080b
  14. *L. J. Lucas, C. A. Tellez , *M. L. Castilho , *C. L. D. Lee , *M. A. Hupman , L. S. Vieira , I. Ferreira , L. Raniero , K. C. Hewitt. Development of a sensitive, stable and EGFR-specific molecular imaging agent for surface enhanced Raman spectroscopy.  Journal of Raman Spectroscopy 46, 434-446 (2015)  10.1002/jrs.4678
  15. *L. J. Lucas , X. K. Chen , *A. J. Smith , M. Korbelik , H. Zeng , P. W. K. Lee  and K. C. Hewitt.  Aggregation of nanoparticles in endosomes and lysosomes produce Surface Enhanced Raman Spectroscopy. Journal of Nanophotonics 9, 093094-1-14 (2015)  10.1117/1.JNP.9.093094
  16. S. A. Fashir, M. L. Castilho, M. A. Hupman, C. L. D. Lee, L. J. Raniero, I. P. Alwayn, and K. C. Hewitt. EGFR-specific nanoprobe biodistribution in mouse models. Proc. SPIE 9531, 95310E (2015) 0.1117/12.2180997
  17. *L. Lucas and K. C. Hewitt. Nanobiophotonics for molecular imaging of cancer: Au- and Ag-based Epidermal Growth Factor receptor (EGFR) specific nanoprobes. Proc. SPIE 8234, 82340C-1-15 (2012)
  18. L .J. Lucas and K. C. Hewitt. EGF Conjugated Gold and Silver Nanoparticles for Imaging EGFR Over-expressing Cells. Nanotechnology 3, 202-205 (2012)
  19. C. Gullekson, *L. Lucas, K. C. Hewitt and L. Kreplak.  Surface-sensitive Raman spectroscopy of collagen I fibrils. Biophysical Journal. 100 (7), 1837-1845 (2011) 10.1016/j.bpj.2011.02.026
  20. M. Azzouz, K. C. Hewitt and H. Saadaoui.  Dichotomy and pseudogap signature in the Raman response of high-Tc cuprates.  Phys. Rev. B 81, 174502-1-4(2010) 10.1103/PhysRevB.81.174502
  21. M. Saadat, A. E. George and K. C. Hewitt. Densely mapping the phase diagram of cuprate superconductors using a spatial composition spread approach.  Physica C – Superconductivity and Applications 470, 559-561 (2010). 10.1016/j.physc.2009.11.157
  22. *L. Lucas, X. K. Chen, *A. Smith, M. Korbelik, H. Zeng, P. W. K. Lee and K. C. Hewitt. Imaging EGFR distribution using surface-enhanced Raman spectroscopy. Proc. SPIE 7192, 719206 (2009). 10.1117/12.808337
  23. J. Li, L. Christensen, M.N. Obrovac, K.C. Hewitt and J.R. Dahn. Effect of heat treatment on Si electrodes using polyvinylidene fluoride binder. J. Electrochem. Soc. 155, A234-A238 (2008). 10.1149/1.2830545
  24. *R. J. Sanderson and K. C. Hewitt. Magnetron sputter deposition of a 48-member cuprate superconductor library: Bi2Sr2Ca1-xYxCu2Oy (0.5 ≤ x ≤ 1) linearly varying in steps of Dx = 0.01.  Appl. Surf. Sci. 254, 760-764 (2007). 10.1016/j.apsusc.2007.06.070
  25. K. C. Hewitt. Nano-Raman spectroscopy: Instrument Design and Techniques. Physics in Canada 62 49-54 (2006).
  26. K. C. Hewitt, *P. A. Casey, R. Sun, M. A. White and *R. J. Sanderson. High throughput resistivity apparatus for thin film combinatorial libraries. Rev. Sci. Instr. 76, 093906 (2005). 10.1063/1.2037947
  27. *R. J. Sanderson and K. C. Hewitt.  Stoichiometry control of magnetron sputtered Bi2Sr2Ca1-xYxCu2Oy (0 £ x£ 0.5) thin film, composition spread libraries: Substrate bias and gas density factors. Physica C – Superconductivity 425, 52-61 (2005). 10.1016/j.physc.2005.06.002
  28. K. C. Hewitt, X. K. Chen, C. Roch, J. Chrzanowski, J. C. Irwin, E. H. Altendorf, R. Liang, D. Bonn and W. N. Hardy. Hole concentration and phonon renormalization in Ca-doped YBa2Cu3Oy  (6.75 < y < 7.0). Physical Review B 69, 064514 (2004). [Selected for the March 1, 2004 issue of the Virtual Journal of Applications of Superconductivity.] 10.1103/PhysRevB.69.064514
  29. A. Bonakdarpour, K. C. Hewitt, R. L. Turner and J. R. Dahn. Electrochemical and In Situ XRD Studies of the Li Reaction with combinatorially sputtered Mo1-xSnx (0 < x < 0.5) thin films. J. Electrochem. Soc. 151, A470-A483 (2004).  10.1149/1.1646138
  30. A. Bonkdarpour, K. C. Hewitt, T. D. Hatchard, M. D. Fleischauer and J. R. Dahn. Combinatorial Synthesis and rapid characterization of Mo1-xSnx (0 < x < 1) thin films. Thin Solid Films 440, 11-18 (2003). 10.1016/S0040-6090(03)00816-2
  31. S. D. Beattie, T. Hatchard, A. Bonakdarpour, K. C. Hewitt and J. R. Dahn. Anomalous, High-Voltage Irreversible Capacity in Tin Electrodes for Lithium Batteries. Journal of the Electrochemical  Society 150, A701-A705 (2003). 10.1149/1.1569477
  32. L. Y. Beaulieu, K. C. Hewitt, R. L. Turner, A. Bonakdarpour, A. A. Abdo, L. Christensen, K. W. Eberman, L. J. Krause and J. R. Dahn. The electrochemical reaction of Li with amorphous Si-Sn alloys. Journal of the Electrochemical Society 150, A149-A156 (2003). 10.1149/1.1530151
  33. J. R. Dahn, S. Trussler, T. D. Hatchard, A. Bonakdarpour, J. R. Mueller-Neuhaus, K. C. Hewitt and M. Fleischauer. Economical Sputtering System to Produce Large-Size Composition-Spread Libraries having Linear and Orthogonal Stoichiometry Variations. Chemistry of Materials. 14, 3519 (2002).  10.1021/cm020236x
  34. K. C. Hewitt and J. C. Irwin. Doping dependence of the Superconducting gap in Bi2Sr2CaCu2O8+d. Phys. Rev. B 66, 054516 (2002). [Selected for the August 15, 2002 issue of the Virtual Journal of Applications of Superconductivity.] 10.1103/PhysRevB.66.054516
  35. K. C. Hewitt, L. Y. Beaulieu and J. R. Dahn. InSb as a Li insertion host: Problems & Prospects. Journal of the Electrochemical Society 148, A402 (2001). 10.1149/1.1359194
  36.  J. G. Naeini, K. C. Hewitt, J. C. Irwin, T. Sasagawa, Y. Togawa, K. Kishio. Temperature induced normal state redistribution of B1g spectral weight in underdoped La2-xSrxCuO4. Physica C 341, 907-908 (2000). 10.1016/S0921-4534(00)00729-2
  37.  C. Boulesteix, K. C. Hewitt and J. C. Irwin. Temperature-induced frequency shift of the Raman-sctive CuO2 planar oxygen vibrational modes of Bi-2212 related to a change of the Cu-O bonding. Journal of Physics: Condensed Matter 12, 9637-9643 (2000). 10.1088/0953-8984/12/46/311
  38. K. C. Hewitt, N. L. Wang, J. C. Irwin, D. M. Pooke, A. E. Pantoja and H. J. Trodahl. Isotope shift of the 590 cm-1 feature in underdoped Bi2Sr2CaCu2O8+d.<FON T FACE=”Symbol”>d Physical Review B 60, R9943 (1999). 10.1103/PhysRevB.60.R9943
  39.  J. G. Naeini, X. K. Chen, K. C. Hewitt, J. C. Irwin, T. P. Devereaux, M. Okuya, T. Kimura and K. Kishio. Evidence for Magnetic pseudoscaling in overdoped La2-xSrxCuO4 Physical Review B 57, R11077 (1998) 10.1103/PhysRevB.57.R11077
  40.  K. C. Hewitt, T. P. Devereaux, X. K. Chen, X-Z. Wang, J. G. Naeini, A. Martin and J. C. Irwin. Comment on “Superconducting Gap Anisotropy vs. Doping level in High-Tc cuprates” Physical Review Letters 7 8, 4891 (1997). 10.1103/PhysRevLett.78.4891
  41.  X. K. Chen, J. G. Naeini, K. C. Hewitt, J. C. Irwin, R. Liang and W. N. Hardy. Electronic Raman scattering in underdoped YBa2Cu3O6.5. Physical Review B 56, R513-R 516 (1997) 10.1103/PhysRevB.56.R513
  42.  A. Martin, J. A. Sanjuro, K. C. Hewitt, X-Z Wang, J. C. Irwin and M. J. G. Lee. Phonon self-energy effects due to superconductivity in Bi2Sr2CaCu2O8+d. Physical Review B 56, 8426 (1997). 10.1103/PhysRevB.56.8426
  43.  K. C. Hewitt, X. K. Chen, X. Meng-Burany, A. E. Curzon and J. C. Irwin. Raman investigation of Pb-substituted Bi2Sr2CuO6+d. Physica C – Superconductivity 251, 192-204 (1994). 10.1016/0921-4534(95)00400-9
  44.  K. C. Hewitt, A. Martin, Y. H. Shi and M. J. G. Lee. Effects of Pb doping on the Raman spectrum of Bi2Sr2CuO6+d. Physica C – Superconductivity 216, 46 3-470 (1993). 10.1016/0921-4534(93)90091-4

Invited Talks & Presentations – Research

  1. Analyzer system and method for real-time synchronous detections of the characteristic near-infrared wavelength features of optically active substances. Physics and Astronomy Virtual tutorial, University of Manitoba. Feb. 9 (2022)
  2. Analyzer system and method for real-time synchronous detections of the characteristic near-infrared wavelength features of optically active substances. Physics and Astronomy Virtual tutorial, University of Victoria. Feb. 9 (2022)
  3. With Ms. Anastasia Smolina. CanPhysCounts: New findings in the first national EDI survey of the Canadian physics community, 2022 Virtual CAP lecture, Feb. 14 (2022) youtu.be/EJLpz4AZflc
  4. The First Canada-Wide Equity, Diversity, and Inclusion in Physics Survey. Plenary lecture, 2021 Virtual Canadian Association of Physics congress, June 9 (2021)
  5. Innovation through action: Diversity’s inspiration of paradigm shifts. Keynote address, Nova Scotia’s public service Innovation Festival 2021. Feb 9 (2021)
  6. Atlantic Undergraduate Physics Conference. Panelist – Careers in Physics. Feb 7, (2021)
  7. Canadian Conference for Undergraduate Women in Physics (Virtual). Panelist – Racism & Discrimination Guided Discussion. Jan. 23 (2021)
  8. Canadian Conference for Undergraduate women in Physics. Workshop – Combatting Racism & Other Forms of Discrimination. University of Toronto, Toronto, ON, Jan. 18, (2020)
  9. VI Brazilian Raman Spectroscopy Conference (VI Encontro Brasileiro de Espectroscopia Raman). “Coherent Raman signal generation for Molecular Holography,” Belém, Brazil. Dec. 2 (2019)
  10. Canadian Undergraduate Physics Conference.  “Equity, Diversity and Inclusion in Physics Research.” Montreal, Quebec Canada Nov. 7 (2019)
  11. Canadian Association of Physics Annual Congress, “First Demonstration of CW Stimulated Surface Enhanced Raman Spectroscopy” Halifax, NS Canada. June 12, (2018)
  12. Canadian Association of Physicists Annual Congress, Committee to Encourage Women in Physics (CEWIP) panel – Cultural Taxation, anti-racist and feminist perspectives, managing backlash and the role of non-marginalized groups in an equitable Physics environment, June 11 (2018)
  13. V Brazilian Raman Spectroscopy Conference (V Encontro Brasileiro de Espectroscopia Raman). “First Demonstration of CW Stimulated Surface Enhanced Raman Spectroscopy” Campos do Jordão, Sao Paulo, Brazil. Dec 5, (2017)
  14. University of Campinas (UNICAMP) “Molecular Imaging of Cancer Biomarkers”   Campinas, Brazil, May 29 (2015)
  15. International Conference on Analytical Sciences and Spectroscopy. “EGFR-specific nanoprobe biodistribution in mouse models”, Halifax, NS, May 19, (2015)
  16. DUPS Lecture series. “Engineering nanoparticles for cancer imaging and treatment” Halifax, NS, Feb. 27, (2015)
  17. Atlantic Undergraduate Physics Conference. “Molecular Imaging for early cancer detection” Halifax, NS, Feb. 1 (2014)
  18. Center for lasers and applications, University of São Paulo. “Nanobiophotonics for molecular imaging of cancer markers: Development of Epidermal Growth Factor Receptor (EGFR) Specific Nanoprobes for Surface Enhanced Raman Spectroscopy (SERS)” São Paulo, Brazil, Aug. 15 (2013)
  19. Workshop Nanociencia e nanotechnologica, desafios para O seculo XXI (Workshop on Nanoscience and nanotechnology, challenges for the XXI century). “Nanobiophotonics for molecular imaging of cancer markers: Development of Epidermal Growth Factor Receptor (EGFR) Specific Nanoprobes for Surface Enhanced Raman Spectroscopy (SERS)” Sao Jose dos Campos, Brazil, June 27 (2013)
  20. Universidade do Vale do Paraíba. “Nanobiophotonics for molecular imaging of cancer markers: Development of Epidermal Growth Factor Receptor (EGFR) Specific Nanoprobes for Surface Enhanced Raman Spectroscopy (SERS)”  Sao Jose dos Campos, Brazil, June 25 (2013)
  21. Dalhousie University. “Molecular Imaging for early detection of cancer”  Halifax, NS Feb. 7 (2013)
  22. University of Prince Edward Island. “Nanobiophotonics for Molecular Imaging of Cancer Markers.” Charlottetown, PEI Dec. 17 (2012)
  23. Dalhousie University. James Robinson Johnson Speaker Series. “Molecular Imaging of cancer” Halifax, NS Dec. 6 (2012)
  24. St. Francis Xavier University. “Nanobiophotonics for Raman molecular imaging of cancer markers.” Antigonish, NS. Oct. 16 (2012)
  25. ASPIRE (Applied Science in Photonics and and Innovative Research in Engineering) Conference. Nanobiophotonics for Molecular Imaging of Cancer Markers. Halifax, NS Oct. 11 (2012)
  26. Mount Allison University. “Nanobiophotonics for molecular imaging of cancer markers.” Sackville, NB. Nov. 16 (2011)
  27. Vancouver Island Cancer Clinic. “Spectroscopy of Cancer Cell Markers: Imaging EGFR Distribution and Tracking Thermal Effects Using SERS” Victoria, BC Apr. 19, (2010)
  28. University of Victoria. “Plasmonics for spectroscopic imaging of cancer markers” Victoria, BC Apr. 20 (2010)
  29. Dalhousie University. “The application of enhanced Raman Spectroscopy to problems in biology, chemistry and physics” Halifax, NS Oct. 23 (2009)
  30. University of New Brunswick. “Imaging cancer using Surface Enhanced Raman Spectroscopy.” Fredericton, NB. Sept. 18 (2009)
  31. Winston Salem State University. “Imaging EGFR Distribution using Surface-Enhanced Raman Spectroscopy.”  Winston-Salem, NC USA, Jan. 23 (2009)
  32. Center of Excellence for the Elimination of Health Disparities. “Imaging EGFR Distribution using Surface-Enhanced Raman Spectroscopy.” Winston-Salem, NC USA, Jan 23 (2009)
  33. Vanderbilt University. “Imaging EGFR Distribution using Surface-Enhanced Raman Spectroscopy.  Nashville, TN USA Jan. 21 (2009)
  34. Dalhousie University. “Imaging EGFR Distribution using Surface-Enhanced Raman Spectroscopy.  Halifax, NS Canada Nov. 13 (2008)
  35. St. Francis Xavier University “Imaging EGFR Distribution using Surface-Enhanced Raman Spectroscopy.”  Antigonish, NS  Canada Nov. 7 (2008)
  36. SPEC 2008 – Shedding Light on Disease: Optical Diagnosis for the New Millennium. “Imaging EGFR Distribution using Surface-Enhanced Raman Spectroscopy.” San Jose Dos Campos, Sao Paulo, Brazil  Oct. 29 (2008)
  37. Simon Fraser University. “Densely mapping phase space to elucidate the mechanism of superconductivity”, Burnaby, BC, Mar. 5, (2008)
  38. East China Normal University. “Raman spectroscopy near metallic nanostructures: Applying SERS & TERS to blood disorders.” Shanghai, China, Aug. 28 (2006).
  39. Canadian Association of Physicists Annual Congress. “NanoRaman spectroscopy: Instrument design and techniques.”  St. Catherines, ON, June 12 (2006).
  40. Dalhousie University. “Applying combinatorial methods to superconductivity.” January 27 (2005).
  41. St. Mary’s University. “Applying combinatorial methods to superconductivity”.  January 11 (2005)
  42. Acadia University. “Applying combinatorial methods to superconductivity.”  November 25 (2004).
  43. Addis Ababa University.  “Application of Raman spectroscopy to problems in biology and physics” Addis Ababa, Ethiopia.  April 29 (2004).
  44. Gordon Research Conference on Combinatorial Materials Science. “Exploring the phase diagram of high temperature superconductors using a combinatorial materials science approach.” Bulleton, CA. January 25-30, 2004 (Declined invitation).
  45. University of Prince Edward Island, “Exploring the phase diagram of high temperature superconductors using a combinatorial materials science approach”, Nov. 21 (2003).
  46. Mount Allison University, “Exploring the phase diagram of high temperature superconductors using a combinatorial materials science approach”, Nov. 20 (2003).
  47. St. Francis Xavier University, “Raman spectroscopy and Superconductivity: Have’nt we solved the problem yet? How Raman spectroscopy is used to elucidate the nature of superconductivity in the cuprates”, Mar. 28 (2003).
  48.  Laurentian University, “Have’nt we solved the problem yet? How Raman spectroscopy is used to elucidate the nature of superconductivity in the cuprates”, Feb. 6 (2003).
  49. Dalhousie University. Raman Scattering and High Temperature Superconductors. May 14 (2001).
  50. Dalhousie University. Raman Spectroscopy: A versatile tool, November 17 (2000).
  51. Dalhousie University. Raman Scattering in High Temperature Superconductors, August (1999).


Invited Talks & Presentations – Science/Other Education

1. Holography: Making scratch holograms. Yakutia International Science Games, Yakutsk, Russia, July 10 (2018)

2. Hidden figures: making the invisible, visible – Black Nova Scotians in science and technology, Nova Scotia Community college. Halifax, NS Feb 7 (2017)

3. Shared Governance at Canadian Universities, Canadian University Boards Association Annual Meeting, Panelist, Halifax, NS, Canada, April 29 (2016)

4. STEM Outreach to Underrepresented Communities. “Outreach to the African-Canadian community.” American Physical Society, March Meeting, Forum on Education in Physics session, Boston, MA. Feb. 28 (2012)

5. Preparing and Troubleshooting labs. Dalhousie University TA Days, Sept 10 (2008)

6. Imhotep’s Legacy After School Science Enrichment Program for African Nova Scotian Learners.American Physical Society March Meeting Kevin Hewitt, Emmanuel Nfonoyim, Barb Hamilton-Hinch, Margo Hampden, Wayn Hamilton, New Orleans, LA, [Bull. Amer. Phys. Soc. 53(2) ] March 12 (2008)

7. Use of the Classroom Performance System in PHYC 1100. Course Design Workshop – Strategies Day. Dalhousie University, Center for University Teaching. Dec. 11 (2007)

8. African Contribution to Science. Nova Scotia Community College – Akerley Campus. May 7 (2007).

9. Challenges in Physics Education Today and the Role of Technology. Panelist. John Wiley and Sons Canada Focus Group. MaRS Collaboration Centre, Toronto, ON. Oct. 13 (2006)

10. What do water and oil, balloons and needles have to do with Sickle cell anemia? Sickle Cell Information session. Watershed Association Development Enterprises. Dartmouth, NS. June 25 (2005).

11. The Physics of music. SHAD valley. Dalhousie University, Halifax, Nova Scotia. July 14, (2004).

12. What do water and oil, balloons and needles have to do with Sickle cell anemia? East Preston Recreation Center. East Preston, NS. Nov. 1 (2003).

13. How motors work. Africentric Science Summer Camp. St. Francis Xavier University. Antigonish, NS. July 17 (2003).

14. Embracing your future in science. BEA Math and Science Camp, Dalhousie University, July 7 (2003).

15. Physics and Sickle Cell Anemia. Visions of Science 2003. University of Toronto. May 17 (2003).

16. Seeing is believing…?. Visions of Science 2003. University of Toronto, Audience: approximately 500 middle school (Grade 6-8) students from the Toronto area. May 16 (2003).

17. Science Fair judge and presenter, Feb. 10 & April 17, 2003. Grade 2-5. Nelson Wynder Elementary School. Invited to present science enrichment activities (Magnetism and superconductors) and judge the science projects of Grade 2-5 students at this school in North Preston. Feb. 10 (2003).

15. Facilitating Inclusion of African Nova Scotian Learners in Secondary Mathematics and Science: An Interactive Professional Development Inservice for participating HRSB Teachers. Halifax Regional School board. Halifax, NS. May 15 (2002).

16. “The Matchmakers tale: Three Years of Faculty Mentoring at Dalhousie University.” Dalhousie Conference on University Teaching and Learning: Pedagogy First: Supporting Learning and Teaching with Technology. May 8 (2002).

17. Understanding Batteries. Oxford School Science and Technology Conference. Halifax, NS. May 7 (2001)

18. Seeing is believing…?, The Afrocentric Science Academy, Saint Mary’s University, October 14th and 21st (2000).

19. Science & Your future possibilities, Dalhousie University Transition Year Program Graduation, April 20 (2000).

20. Promoting Cultural Diversity within the Classroom and Across the Campus, Simon Fraser University, TA/TM Day, Workshop leader, Sept. 10 (1999).

21. Holograms. Grade 4-6 Science Open House, Simon Fraser University, May. 5 (1999).

22. Festival of Science and Technology Open House, Simon Fraser University, Oct. 23 (1998).

23. Sundials, Building a battery, Building a motor. Akoma Ntoaso – Youth Building Bridges Together. Fraserview Boys and Girls Club, Vancouver BC, Sept. 27 (1998).