Rana Parshad, Zhijun Wu and I organize a weekly Mathematical Biology Seminar at Iowa State University.
Seminars take place almost every Friday at 3:20pm in Carver 401. In addition, we have a zoom link for people working from home (if you are interested just email me).
Future speakers:
September 22, 2023
Vaibhava Srivastava, Iowa State University (Mathematics)
Dynamical Analysis of a Lotka-Volterra Competition Model with both Allee and Fear Effect
Population ecology theory is replete with density-dependent processes. However trait-mediated or behavioral indirect interactions can both reinforce or oppose density-dependent effects. This paper presents the first two species competitive ODE and PDE systems where an Allee effect, which is a density dependent process and the fear effect, which is non-consumptive and behavioral are both present. The stability of the equilibria is discussed analytically using the qualitative theory of ordinary differential equations. It is found that the Allee effect and the fear effect change the extinction dynamics of the system and the number of positive equilibrium points, but they do not affect the stability of the positive equilibria. We also observe some special dynamics that induce bifurcations in the system by varying the Allee or fear parameter. Interestingly we find that the Allee effect working in conjunction with the fear effect, can bring about several qualitative changes to the dynamical behavior of the system with only the fear effect in place, in regimes of small fear. That is, for small amounts of the fear parameter, it can change a competitive exclusion type situation to a strong competition type situation. It can also change a weak competition type situation to a bi-stability type situation. However for large fear regimes the Allee effect reinforces the dynamics driven by the fear effect. The analysis of the corresponding spatially explicit model is also presented. To this end the comparison principle for parabolic PDE is used. The conclusions of this paper have strong implications for conservation biology, biological control as well as the preservation of biodiversity.
September 29, 2023
No seminar, due to the Statistics 75th Anniversary Research Conference
https://www.stat.iastate.edu/event/2023/75th-anniversary-research-confe…
October 13, 2023
Tracy Stepien, University of Florida
Title TBA
October 27, 2023
Urvashi Verma, Iowa State University (Mathematics)
Title TBA
November 03, 2023
Maggie Lewis, Ohio State University
Title TBA
Past speakers:
September 15, 2023
Xinglin Jia, Iowa State University (Mathematics / BCB)
Concise functional enrichment of ranked gene lists
September 08, 2023
Thomas Griffin, Iowa State University (Mathematics)
Understanding the chemostat and reversing competitive exclusion
April 28, 2023
Rana Parshad, Iowa State University (Mathematics)
Some recent results on three species food chains
April 25, 2023
Reinhard Laubenbacher, University of Florida
Structure and dynamics of Boolean networks, with applications to the concept of modularity in biology
April 21, 2023
Debosmita Kundu, Iowa State University (Statistics)
Identifying Peaks and Estimating Parameters for CUT&RUN Sequencing Using Branching Process Model
April 07, 2023
Zhijun Wu, Iowa State University (Mathematics)
Beyond six feet: The collective behavior of social distancing
April 03, 2023
Pierre-Emmanuel Jabin, Penn State University
The mean-field limit of non-exchangeable integrate and fire systems
March 31, 2023
Vaibhava Srivastava, Iowa State University (Mathematics)
The effect of "fear" on two species competition
March 28, 2023
David Murrugarra, University of Kentucky
Phenotype Control Methods for Regulatory Networks
March 24, 2023
Yanyang Wang, University of Iowa
Mathematical analysis and models for understanding neural dynamics
March 03, 2023
Mondal Hasan Zahid, University of Florida
The biting rate of Aedes aegypti and its variability: A systematic review (1970 - 2022)
February 20, 2023
Anthony DeLegge, Benedictine University
The Effects of Vaccine Misinformation on Disease Spread
February 17, 2023
Ananth Srinivas, Louisiana State University
Optimal Control Studies for Additional food provided Prey-Predator Systems involving Holling Type III and Type IV Functional Responses
February 10, 2023
Claus Kadelka, Iowa State University (Mathematics)
Heterogeneities in contact patterns matter: how to account for them
January 27, 2023
Md Shahriar Mahmud, Iowa State University (Mathematics)
Dynamics of a diffusive vaccination model with therapeutic impact and non-linear incidence rates
January 20, 2023
Albin Salazar, Ecole Normale Superieure, Paris
A generic framework to coarse-grain stochastic reaction networks by Abstract Interpretation
November 11, 2022
Parnal Joshi, Iowa State University (Veterinary Medicine)
Identifying protein function annotation differences between mouse and human orthologous proteins
October 14, 2022
Aniket Banerjee, Iowa State University (Mathematics)
The effect of a few very fast diffusers in two species competition
September 30, 2022
Jordan Rozum, State University of New York at Binghamton
Stable motifs in Boolean networks and beyond
May 04, 2022
Lihong Zhao, University of California Merced
Modeling and Global Sensitivity Analysis of Strategies to Mitigate Covid-19 Transmission on a Structured College Campus
April 27, 2022
Daniel Abrams, Northwestern University
Careful or colorful? The evolution of animal ornaments
April 13, 2022
Hayriye Gulbudak, University of Louisiana at Lafayette
Heterogeneous viral strategies promote coexistence in virus-microbe systems
April 06, 2022
Hana Dobrovolny, Texas Christian University
Insights into viral coinfections from mathematical models
March 30, 2022
Glenn Ledder, University of Nebraska-Lincoln
A Competition Model with Seasonal Reproduction
March 23, 2022
Cinzia Soresina, University of Graz, Austria
Multistability and time-periodic spatial patterns in the cross-diffusion SKT model
March 02, 2022
Lubna Pinky, Eastern Virginia Medical School
Within-host kinetics of parainfluenza virus infection
February 23, 2022
Md Rafiul Islam, Iowa State University (Mathematics)
Taking ethnicity into consideration can lead to a more successful roll-out of limited vaccine: a COVID-19 model-based study
February 16, 2022
Goong Chen, Texas A&M
Modes of Motion of a Coronavirus
February 09, 2022
Tang Quoc Bao, University of Graz, Austria
Global well-posedness of reaction-diffusion systems
February 03, 2022
Md Masud Rana, University of Kentucky
Reduced-Order Modeling in Analyzing the Dynamics of a Spatial Stoichiometric Aquatic Ecosystem
December 08, 2021
Adam Runions, University of Calgary
Modeling Leaf Shape Development & Diversity
December 01, 2021
Anayse Miller, Iowa State University (Mathematics)
Age-Structured Population Models of Tissue Organization
November 17, 2021
Andre Voigt, Norwegian University of Science and Technology
Modelling strategies for reducing the spread of COVID-19
November 03, 2021
Santosh Manicka, Tufts University
Biological regulatory networks are less nonlinear than expected
October 27, 2021
Adrian Lam, Ohio State University
Competition dynamics of phytoplankton species in eutrophic water columns
October 20, 2021
Julie Spencer, Los Alamos National Laboratory
Distinguishing Viruses Responsible for Influenza-like Illness
October 13, 2021
Zhijun Wu, Iowa State University (Mathematics)
Social Distancing Is a Social Dilemma Game Played by Every Individual against his/her Population
October 06, 2021
Daniel Plaugher, University of Kentucky
Modeling the Pancreatic Cancer Microenvironment in Search of Control Targets
September 29, 2021
Rana Parshad, Iowa State University (Mathematics)
Some Recent Results in Two Species Competition
September 15, 2021
Kristina Moen, Iowa State University (Mathematics)
Tracking the Molecular Evolution of SARS-CoV-2: A Topological Approach
September 08, 2021
Aniket Banerjee, Iowa State University (Mathematics)
Exploring the Dynamics of Virulent and Avirulent Aphids: A Case for a "Within Plant" Refuge
September 01, 2021
Claus Kadelka, Iowa State University (Mathematics)
Evaluation of the United States COVID-19 vaccine allocation strategy
April 28, 2021
Ivana Bozic, University of Washington
Mathematical model of colorectal cancer initiation
April 21, 2021
Nancy Rodriguez, UC Boulder
The effect of directed movement on the Allee Effect
April 14, 2021
Adam Maclean, University of Southern California
Modeling gene regulatory network dynamics at single-cell resolution
April 07, 2021
Moumita Das, Rochester Institute of Technology
Mechanics and fracture properties of articular cartilage and cartilage-inspired soft materials
March 31, 2021
Veronica Grieneisen, Cardiff University
Mathematical modelling of Morphogenesis in Plants and Animals, from cells to tissues
March 24, 2021
Andrew Krause, Oxford University
Recent Progress & Open Frontiers in Turing-Type Morphogenesis
March 17, 2021
Madhavan Rajagopal Padmanabhan, Iowa State University (Computer Science)
Applications of Submodular Optimization in Information Diffusion
March 10, 2021
Daniel Cruz, Georgia Tech
Agent-based Modeling of Emergent Patterns Within Stem Cell Colonies
March 03, 2021
Elena Dimitrova, Cal Poly
Algebraic design of experiments for network identification
February 24, 2021
Audrey McCombs, Iowa State University (Statistics)
Structure Matters: Network topology and disease dynamics
February 17, 2021
David Murrugarra, University of Kentucky
Improving RNA secondary structure prediction via state inference with machine learning and deep learning methods
February 10, 2021
Anastasios Matzavinos, Brown University
Bayesian uncertainty quantification for particle-based simulations
November 18, 2020
Lauren Childs, Virginia Tech
Modeling Malaria Dynamics within the Mosquito
November 11, 2020
Fusun Akman, Illinois State University
Symmetries of nested canalizing functions and of phase spaces of gene regulatory networks
November 04, 2020
Thomas Woolley, Cardiff University
Patterns, cellular movement and brain tumours
October 28, 2020
Samantha Erwin, Oak Ridge National Laboratory
Monitoring and Forecasting COVID-19 Disease Progression
October 21, 2020
Ruoyu Wu, Iowa State University (Mathematics)
Mean field interaction on random graphs: Erdos-Renyi and multi-color graphs
October 14, 2020
T.M. Murali, Virginia Tech
How to build regulatory networks from single-cell gene expression data
October 07, 2020
Md Rafiul Islam, Iowa State University (Mathematics)
Mathematical modeling of infectious diseases using ordinary and fractional differential equations
September 30, 2020
Laura Strube, Virginia Tech
The role of repeat infection in the dynamics of a simple model of waning and boosting immunity
September 23, 2020
Manoj Srinivasan , Ohio State University
Theories of human locomotion: How healthy humans walk stably and efficiently
September 16, 2020
Eric Takyi, Iowa State University (Mathematics)
Diffusion induced extinction and recovery in a Female Harvesting Male Stocking (FHMS) model with weak Allee effects
September 09, 2020
Davit Potoyan, Iowa State University (Chemistry)
Multi-scale modeling of nuclear organization and regulation
September 02, 2020
Zhijun Wu, Iowa State University (Mathematics)
Social Distancing amid Social LivingÂ
May 06, 2020
Leonid Rubchinsky, Indiana University Purdue University Indianapolis
In and Out of Synch: Intermittent Synchronization of Living Systems
April 29, 2020
Claus Kadelka, Iowa State University (Mathematics)
A model-based evaluation of the efficacy of COVID-19 social distancing testing and hospital triage policies
April 08, 2020
Ivair Valmorbida, Iowa State University (Entomology)
Soybean aphid (Hemiptera: Aphididae) response to lambda-cyhalothrin varies with its virulence status to aphid-resistant soybean
April 01, 2020
Matthew ONeal, Iowa State University (Entomology)
Soybean aphids - an invasive pest that changed soybean production in the US.
March 11, 2020
Zhijun Wu, Iowa State University (Mathematics)
Why Multilingual, and How to Keep It -- An Evolutionary Dynamics Perspective
March 04, 2020
Amy Toth, Iowa State University (EEOB and Entomology)
Building a super organism: Social insects as models for studying the evolution of biological complexity
February 26, 2020
Eric Takyi, Iowa State University (Mathematics)
On large and small data blow-up solutions in the Classical Trojan Y-Chromosome Model
February 19, 2020
Shofi Andari, Iowa State University (Statistics)
Paired-end reads merging using pair-hidden Markov model
February 12, 2020
Rana Parshad, Iowa State University (Mathematics)
Indirect Effects of Invasive Species
February 05, 2020
Claus Kadelka, Iowa State University (Mathematics)
Understanding the Rules of Life: Design Principles of Gene Regulatory Networks
January 29, 2020
Kushani da Silva, Iowa State University (Mathematics)
The higher status language doesn't always win: The fall of English in India and the rise of Hindi
January 22, 2020
Audrey McCombs, Iowa State University (Statistics)
Community stability of ecological networks
December 11, 2019
Oyeyemi Oyebola, Iowa State University (Mathematics)
Extra Polyloops and their Applications to Biological Inheritance
December 04, 2019
Karin Dorman, Iowa State University (Statistics)
Denoising Illumina Amplicon Data
November 06, 2019
Bob Jernigan, Iowa State University (Biochemistry, Biophysics and Molecular Biology)
Looking for complexity - when pairs are not enough
October 30, 2019
Tom Sappington, USDA
"It's not easy to be me¦": Bridging the worlds of applied ecologists and modelers to change the world of pest management
October 23, 2019
Ian Braun, Iowa State University (GDCB)
Automated methods enable direct computation on phenotypic descriptions for novel candidate gene prediction
October 16, 2019
Haldre Rogers, Iowa State University (EEOB)
What is the fate of an empty forest?
October 09, 2019
Zhijun Wu, Iowa State University (Mathematics)
When Do Cheaters Lose?
September 25, 2019
Kushani da Silva, Iowa State University (Mathematics)
Dynamics of Endangered Languages of the World
September 18, 2019
Eric Takyi, Iowa State University (Mathematics)
The Trojan Y Chromosome strategy