Colorado School of Mines, Golden, CO
Ph.D. Computational and Applied Mathematics — 2025
University of Colorado, Colorado Springs, Colorado Springs, CO
M.S. Applied Mathematics — 2018
Maryland University of Integrative Health, Laurel, MD
Earned 31.5 graduate credits in Nutrition and Integrative Health (no degree conferred) — 2014-2016
Towson University, Towson, MD
B.S. Mathematics (pure mathematics track, physics minor) — 2012
Garrish J., Nychka D., Chan C.L., and Diniz Behn, C. Incorporating Physiology to Improve Estimates of Post-prandial Insulin Secretion Rates with Quantified Uncertainty. SIAM Journal on Applied Mathematics. 2026; 86(4): 1422-1440.
Dobbs TJ, Cree MG, Bailey AJ, Baumgartner AD, Garrish J, Diniz-Behn C, Pyle L, Kelsey MM, Shah AS, Inge TH, Bjornstad P, Nadeau KJ. Glycemia, Insulin Sensitivity, and Secretion Improve 3 Months Post-sleeve Gastrectomy in Youth With Type 2 Diabetes. J Endocr Soc. 2025 Jan 28;9(3):bvaf020. doi: 10.1210/jendso/bvaf020. PMID: 39911520; PMCID: PMC11795195.
Finn E., Severn C., Pyle L., Garrish J., Vigers T., Diniz Behn, C., Zeitler P.S., Sagel S.D., Nadeau K.J., Chan C.L. Hypoglycemia in children and young adults with cystic fibrosis during oral glucose tolerance testing vs. continuous glucose monitoring. Pediatric Pulmonology. 2023 Sep; 58(9): 2495-2504.
Garrish J., Nychka D., Chan C., and Diniz Behn, C. A Gaussian Process Model for Insulin Secretion Reconstruction with Uncertainty Quantification: Applications in Cystic Fibrosis. SIAM Journal on Applied Mathematics. 2023; 84(3); S65-S81.
del Castillo J., Garrish J., Terrab S., Ryan J. Mines Mathematics and Computing Collaborative: Stimulating Mathematical Interest in Young Minds. SIAM News. June 2022.
[Upcoming] “A Variably Scaled Gaussian Process Approach to Glucose Derivative Estimation.” The Tenth International Conference on Mathematical Modeling & Analysis of Populations in Biological Systems. College Park, MD. October 2026.
"Data-Adaptive Estimation of Glucose Derivatives with Uncertainty Quantification.” SIAM Conference on the Life Sciences 2026. Cleveland, OH. July 2026.
“Incorporating physiological constraints in estimates of post-prandial insulin secretion rate.”
[Invited] Mathematical Biology Seminar, Department of Mathematics, Howard University. Washington, D.C. February 2026.
[Invited] Data Science Seminar, Laboratory of Biological Modeling, National Institutes of Health. Bethesda, MD. December 2025.
Differential Equations Seminar, Department of Mathematics and Statistics, UMBC. Catonsville, MD. October 2025.
[Invited] Early Careers in Mathematical Biology Session, Biomathematics and Ecology Education and Research Symposium, Fairfax, VA. November 2025.
[Invited] Dynamics in Neuroendocrine Regulation: Basal Activity, Perturbations, and Integration Mini-Symposium, SIAM Conference on Applications of Dynamical Systems 2025. Denver, CO. June 2025.
“Reconstructing insulin secretion rate from oral glucose tolerance test.” Postdoctoral Research Symposium, University System of Maryland. College Park, MD. September 2025.
[Invited] “Quantitative Assessment of Metabolic Health: Bayesian Hierarchical Models Uniting Dynamical Systems and Gaussian Processes.” Mathematical Data Science Seminar, UCCS. Colorado Springs, CO. April 2024.
[Invited] “Estimating Impaired Insulin Secretion with Uncertainty Quantification in Patients with Cystic Fibrosis.” Dynamic Regulatory Principles in Neuroendocrine Systems Mini-Symposium, SIAM Conference on Applications of Dynamical Systems 2023.
[Invited] “Quantifying Beta-Cell Responsivity for Patients with Cystic Fibrosis.” Mathematical Models of Diabetes and Clinical Applications Mini-Symposium, SIAM Conference on the Life Sciences 2022.
[Invited] “A Bayesian Hierarchical Approach to Reconstructing Insulin Secretion Rate from C-Peptide Data.” Dynamics and Inference in Mathematical Physiology and Biomedicine Mini-Symposium, SIAM Conference on Applications of Dynamical Systems 2021, Virtual.
University of Maryland, Baltimore County, Postdoctoral Researcher — 2025-Present
Application of Bayesian hierarchical modeling and kernel-based approximation to inverse problems and uncertainty quantification, especially in dynamical systems
Data-adaptive estimation of glucose derivatives from oral glucose tolerance test data via variably scaled Gaussian processes
Modeling and simulation of STI transmission in adults over 50 years of age
Colorado School oF Mines, Ph.D. Student — 2019-2025
Mathematical modeling of metabolic dynamical systems for pediatric populations with insufficient insulin; Application of Bayesian hierarchical modeling and kernel-based approximation to inverse problems in metabolic systems
Advisor. Dr. Cecilia Diniz Behn, Colorado School of Mines, Applied Mathematics and Statistics
Children’s Hospital Colorado, Internship — Summer 2019
Mathematical modeling of glucose-insulin dynamics and quantification of insulin sensitivity in patients with cystic fibrosis
Advisors. Dr. Christine Chan, Children’s Hospital Colorado, Pediatric Endocrinology;
Dr. Melanie Cree-Green, Children’s Hospital Colorado, Pediatric Endocrinology;
Dr. Cecilia Diniz Behn, Colorado School of Mines, Applied Mathematics and Statistics.
University of Colorado, Colorado Springs, Master’s Student — 2016-2018
Modeling and simulation of sub- and transonic flow around a pod-shaped vessel in an enclosed tube.
Advisor. Dr. Radu Cascaval, University of Colorado, Colorado Springs, Department of Mathematics.
AMS Mathematical Research Communities, Participant — 2016
Mathematics in Physiology and Medicine: Mathematical modeling of the HPA-axis.
Advisor. Dr. Jonny Ottesen, Roskilde University, DK, Department of Science, Systems and Models.
University of Maryland, Baltimore County
Postdoctoral Researcher, Fall 2025-Present.
Instructor of record responsible for all aspects of course
Courses taught: Introduction to Differential Equations, Multivariable Calculus, Introduction to Linear Algebra
Colorado School of Mines
Graduate Teaching Fellow, Spring 2019-Spring 2025.
Instructor of record responsible for all aspects of course
Courses taught: Calculus I, Calculus II, Calculus III, Introduction to Scientific Computing, Linear Algebra
Lead Graduate Teaching Assistant, Spring 2022.
Rubric creation for differential equations assignments
Communication of expectations between professors and graders
Recitation leader for several sections of undergraduate differential equations
Adjunct Lecturer, Fall 2021.
Graduate Teaching Assistant, Fall 2018.
Recitation leader and grader for several undergraduate differential equations sections
Red Rocks Community College
Mathematics Adjunct, Fall 2023
Mathematics Faculty, AY 2022-2023
Instructor of record responsible for all aspects of course
Courses taught: College Algebra, College Trigonometry, Calculus I, Calculus III
University of Colorado, Denver
Adjunct Mathematics Lecturer, Fall 2018-Spring 2020.
Instructor of record responsible for all aspects of course
Courses taught: College Algebra for Business, Mathematics for Liberal Arts Majors, Calculus II, Calculus III
University of Colorado, Colorado Springs
Graduate Teaching Fellow, Fall 2016-Spring 2018.
Instructor of record responsible for all aspects of course
Courses taught: Pre-Calculus, Calculus for Business
Recitation leader and homework grader for undergraduate differential equations; homework grader for undergraduate real analysis