Upcoming Postdoc Seminars

All seminars will be held in the MBI Lecture Hall - Jennings Hall, Room 355 - unless otherwise noted.

September 25, 2018 10:20 - 11:05AM

Vector-borne diseases affects approximately 1 billion people and accounts for 17% of all infectious diseases. With travel becoming more frequent across the world, it is important to understand how spatial dynamics impact the spread of the disease.  Human movement plays a key part on how a disease can be distributed as it enables a pathogen to invade a new environment, and helps the persistence of a disease in locations that would otherwise be isolated.  In this talk, we explore how spatial heterogeneity combines with mobility network structure to influence vector-borne disease dynamics.  In addition, we will derive an approximation for the basic reproduction number for a n-patch ODE system using a Laurent series expansion, and construct sensitivity equations to determine which parameters should be targeted for intervention strategies.

October 02, 2018 10:20 - 11:05AM

Regular spatial patterns in the vegetation growth of dryland ecosystems are thought to arise through self-organization in response to water scarcity.  This behavior  has been qualitatively reproduced by reaction-advection-diffusion systems that model various interactions between the plants and their environment.  The  patterns most often appear on very gentle slopes as bands of vegetation separated by bare soil with characteristic spacing on the order of 100 meters.  I will use a simple modeling framework and an idealized topography to discuss the role of water transport in determining (1) the shape of individual vegetation bands and (2) the region of the landscape occupied vegetation patterns. The results are in qualitative agreement with observations from remote sensing data, and suggest that the placement of the patterns relative to ridges and valleys on the terrain may provide some indication of resilience to ecosystem collapse under aridity stress.  I will also discuss prospects for improved  water transport models that provide a more detailed picture of processes governing surface/subsurface water dynamics across timescales.

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October 09, 2018 10:20 - 11:05AM

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October 16, 2018 10:20 - 11:05AM

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October 30, 2018 10:20 - 11:05AM

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November 06, 2018 10:20 - 11:05AM

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November 13, 2018 10:20 - 11:05AM

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November 20, 2018 10:20 - 11:05AM

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Upcoming Visitor Seminars

upcoming special seminars