Faculty

Takeru Igusa

Professor

Department of Civil Engineering
Department of Applied Mathematics & Statistics (secondary appointment)
Department of Earth & Planetary Sciences (joint appointment)
Department of International Health (joint appointment)
Department of Mental Health (joint appointment)

Program Lead, Education & Training Program, Johns Hopkins Global Obesity Prevention Center

Research Interests

  • System Dynamic Modeling
  • Agent Based Modeling
  • Modeling Frameworks for Predicting the Onset of Chronic Disorders
  • Systems Modeling of the Causes of Obesity and Non-communicable Diseases
  • Community Resilience
  • Structural Dynamics
  • Acoustics

Takeru (Tak) Igusa is a professor in the Department of Civil Engineering and a leading expert in systems science. He is known for bringing new insights to complex problems in the health sciences through the use of systems principles and analytical techniques.

Igusa’s background in engineering and applied mathematics has allowed him to work across a diversity of fields, from epidemiology to community resilience to civil and mechanical structures. The collaborative and multidisciplinary nature of his research has led to joint appointments in the departments of Mental Health and International Health at the Bloomberg School of Public Health (JHSPH), and in the Department of Earth and Planetary Sciences at the Krieger School of Arts and Sciences. He also holds a secondary appointment in the Whiting School of Engineering’s Department of Applied Mathematics and Statistics.

Igusa is currently working with colleagues at JHSPH on a CDC project to model community resilience in the event of natural disasters and with physicians and scientists in the School of Medicine on an NIH project on differential equation-based models for autoimmune rheumatic disorders, among other projects. He is also collaborating with a team of experts in the Johns Hopkins Center for Injury Research and Prevention to create policies and planning tools that will increase the safety of autonomous vehicle testing and deployment.

He has spearheaded a number of research and educational initiatives at Johns Hopkins, including an NIH-funded Global Center for Childhood Obesity, where he served as director of the education and training core for four years.

Igusa’s work has been funded by the National Institutes of Health, Centers for Disease Control and Prevention, National Science Foundation, NASA, U.S. Department of Health and Human Services, Robert Wood Johnson Foundation and Bloomberg Philanthropies. He has had more than 75 papers published in peer-reviewed journals.

He is a member of the American Society of Civil Engineering and serves on the editorial board of the journal Structural Safety. He also serves on the advisory boards of Johns Hopkins’ Global mHealth Initiative and Center for Leadership Education. He was a Visiting Distinguished Scholar at The University of Witwatersrand, Johannesburg, in 2013 and received an invitational fellowship from the Japan Society for the Promotion of Science in 1997.

Igusa received his bachelor’s degree in Applied Mathematics from Harvard University in 1977 and his MS and PhD degrees in Civil Engineering from the University of California at Berkeley in 1979 and 1983, respectively.  He was a professor of Civil Engineering at Northwestern University before joining Johns Hopkins in 1999.


Prof. Igusa has overseen many students during his time both at Johns Hopkins University and Northwestern University. Below is a comprehensive list of those students.

Student Name
Degree
Date
Thesis Title

Sen Lin (with J. Links and N. Kanarek, Environmental Health & Engineering, K. Alonge, International Health, and J. Guest)
PhD
Jun 2017
“System Dynamics and Agent-Based Models Applied to Public Health Problems”

Khatoon Melick (with T. Dalrymple)
PhD
Dec 2016
“Systems Models for Promoting Regional Resilience Towards Repeated Hurricane Event”

Reza Lofti (with D. Waugh, Earth & Planetary Sciences and J. Guest)
PhD
Dec 2013
“Topology Optimization under Nonlinear Mechanics”

Mehdi Jalalpour (with J. Guest)
PhD
Jun 2013
“Systems Problems with Stochastic Components”

Arghavan Louhghalam
PhD
Dec 2010
“Analytical Studies of Vibrations in Passenger Cars of High Speed Trains”

Ju-Mee Ryoo (with D. Waugh, Earth & Planetary Sciences)
PhD
Jun 2009
“Controls on Tropical Upper Tropospheric Humidity”

Libin Tan (with S. Arwade)
PhD
Dec 2007
“The Classification and Evolution of Local Features in the Mechanics of Heterogeneous Media”

Zailong Wan (with B. W. Schafer)
PhD
Jun 2004
“Optimization Using Noisy Simulations: Trust Region, Surrogate Surface, and Adaptive Sampling”

Haoyang Liu
PhD
Jun 2003
“Design under Uncertainty Using a Bayesian Approach”

Steve Buonopane (with B. W. Schafer)
PhD
Jun 2003
“Bayesian Network Analysis for Performance-Based Design”

William Fritz (with N. P. Jones)
PhD
Jun 2003
“Damping Selection Methodology for Analysis & Design of Building Structures”

Jonas Racys*
PhD
Dec 2001
“Analysis of Complex Structures through Wave-Based Joint Models”

Soonkoo Kwon*
MS
Dec 2001
“Effect of Uncertainty on the Stiffness of Frames”

Tsung-Shi Liu*
MS
Jun 1999
“Simplified Response Spectrum Methods for Non-classical Damping”

Sanjay Jaiswal* (with S. P. Shah)
PhD
Dec 1998
“Effect of Aggregates on Chloride Conductivity of Concrete:An Experimental and Modeling Approach”

Cheng-Yuan Sun*
MS
Jun 1998
“Simplified Methods for Nonlinear Seismic Analysis of Bridges”

Zvi Agranati*
MS
Jun 1998
“Optimal Design Strategies for Multiple Vibration Absorbers”

Tsung-Lin Hsiao*
MS
Dec 1997
“Simplified Energy-Based Methods for Nonlinear Seismic Analysis of Buildings”

Michael Utschig* (with J. D. Achenbach)
PhD
Jun 1996
“Acoustic Radiation from Submerged Cylindrical Shells with Hemi-Spheroidal Endcaps”

Tsann-Yeu Lin* (with T. Mura)
PhD
Jun 1996
“Damage Detection and Reliability Assessment Using Analytically Based Artificial Intelligence”

Toru Kono* (with T. Mura)
MS
Dec 1995
“Vibration Analysis Using a Combined FEM and Analytical Modeling Technique”

Weiping Zhang* (with J. D. Achenbach)
PhD
Dec 1995
“Acoustic Scattering from Finite-Length Cylindrical Shells with Substructures”

Sung-Hoon Choi* (with J. D. Achenbach)
PhD
Jun 1995
“Acoustic Radiation from a Finite-Length Shell with Substructures”

Masato Abe*
PhD
Jun 1995
“Vibration Control Using Analytically Based Artificial Intelligence”

Makola Abdulla*
PhD
Jun 1994
“Optimal Output Feedback Control of Civil Structures”

Becky Anderson*
MS
Dec 1993
“Seismic Effectiveness of a Passive Tuned Mass Damper on a Nonlinear System”

Michael Utschig* (with J. D. Achenbach)
MS
Jun 1993
“A Traveling Wave Approach to Study the Dynamic Response of a Submerged Cylindrical Shell”

Jens Bjarnason* (with J. D. Achenbach)
PhD
Jun 1993
“Effect of Substructures on the Vibration of Fluid-Loaded Shells”

Yiwen Tang*
PhD
Dec 1992
“Applications of Wave Approaches to Structural Dynamics”

Kangming Xu*
PhD
Jun 1992
“Dynamic Analysis and Structural Control with Closely Spaced Natural Frequencies”

Sung-Hoon Choi* (with J. D. Achenbach)
MS
Jun 1992
“The Effect of Substructures on the Vibration of a Periodic Cylindrical Shell in an Acoustic Medium”

Ravi Sinha*
PhD
Dec 1991
“Analysis of Secondary Systems with Nonlinear Supports”

Makola Abdulla*
MS
Dec 1991
“Active Control of Tall Buildings”

John Miller*
MS
Dec 1990
“Cascaded Continuous Systems Excited by Random Excitations”

Kyung-Won Min* (with J. D. Achenbach)
PhD
Dec 1990
“Frequency Window Method for the Vibration of Structures with Connected Substructures”

*Graduates of Northwestern University

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