Eric Sembrat's Test Bonanza

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School of Physics, Nonlinear Science & Mathematical Physics Seminar: Prof. Gemunu Gunaratne, University of Houston

Analytical and computational studies of hydrodynamic and reacting flows are extremely challenging, due in part to nonlinearities of the underlying system of equations and long-range coupling. Moreover, accurate models of many of these systems in realistic settings are not available. Recent developments in high-resolution, high frequency experimental data capture offer an alternative approach to extracting key features of the underlying systems. However, this approach elicits additional issues, including how noise and other external effects can be delineated from dynamics.

In this talk, I will introduce Koopman mode analysis, a nonlinear generalization of normal mode analysis, and dynamic mode decomposition, a computational method to extract Koopman modes from spatio-temporal data. Koopman modes are global structures, each of which evolve with a single complex growth rate. Studying the dynamics of the coefficients of Koopman modes permits a decomposition of a flow into its constituents. The delineation of noise from dynamics is recast as a differentiation of robust flow constituents (i.e., those common to nominally identical experiments) from non-robust features. The methodology is used to identify reproducible flow constituents in (1) cellular patterns on flame fronts, (2) instabilities in reacting flows behind a barrier, (3) injector flows, and (4) swirling combustion.

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For the sixth year in a row, the Georgia Tech community will partake of a community meal to discuss the life and legacy of civil rights leader Martin Luther King Jr. The meal is called Sunday Supper, even though it takes place during the workweek. The gathering evokes Sunday dinners of yore, when two or more generations of family and friends shared a comforting meal. It was a time to exchange stories, learn family histories, and discuss current events or concerns. 

Conceived by the volunteer organization Points of Light, the Sunday Suppers take place around MLK Day each year. They bring together people from diverse backgrounds to a meal so that they can interact on a personal level and discuss matters that affect their communities.

The event is supported in part by the College of Sciences.

To participate, register here.

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The College of Sciences' Thackery Brown and Simon Sponberg are among the nine featured new faculty hires in an evening to welcome new neuroscience faculty while visiting with old friends and colleagues. Also featured is Cassie Mitchell of the College of Engineering.

Each of the new faculty hires will give a 5-minute talk. Afterward, each will host a roundtable for further discussions.

Thackery I. Brown, an assistant professor in the Georgia Tech School of Psychology" will talk about "Looking Back to Think Ahead: Neural Mechanisms of Navigational Planning."

Simon Sponberg, an assistant professor in the School of Physics with joint appointment in the School of Biological Sciences, will give a short talk about "Light, Flight, and Sight: How Animals Control Agile Movement."

Cassie S. Mitchell is an assistant professor in the Wallace H. Coulter Department of Biomedical Engineering. Her five-minute talk is titled "Integration of Multi-Scalar Experimental and Clinical Records to Forecast Neuropathology."

Here are the other featured faculty, their affiliations, and the topics of their five-minute talks: 

Eyal Aharoni, Psychology, Georgia State. “Imaging Impulsivity: A Search for Neural Markers of Bad Behavior”

Brian Dias, Psychiatry, Emory University. “Multigenerational Imprints of Stress and Trauma”

Angela Mabb, Neuroscience Institute, Georgia State. “Ubiquitin-Dependent Control of Cognition”

Vasiliki Michopoulos, Psychiatry and Behavioral Science, Emory University. “Translational Neuroscience Approaches to Understanding the Effects of the Environment on Brain and Behavior”

Javier Stern, Neuroscience Institute, Georgia State. “Novel Biosensors to Detect Release of Brain Neuropeptides” 

Todd E. White, Neurobiology, Morehouse School of Medicine. “Behavioral and Molecular Characterization of a Rat Model of Chronic Repetitive Mild Traumatic Brain Injury”

The event is FREE, but please fill out the registration form below to ensure that enough food and drinks are available for all. A light supper, beer, wine and soft drinks will be served.

Map and Parking: http://map.emory.edu

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We invite high school students (and their guests) who are interested in learning about undergraduate degree programs in the College of Sciences at Georgia Tech to attend the open house “It’s All About Science and Math.” Visitors will learn about opportunities in the degree programs listed below, receive information about admission requirements and financial aid, attend a class, and tour scientific facilities/labs and parts of campus. This program is free to visitors and guests.

Due to limited space, participants are encouraged to sign up early. To schedule a class or group visit, please contact Dr. Cameron Tyson.

Degree programs:  BiochemistryBiologyChemistryEarth & Atmospheric SciencesMathematics, Neuroscience, Physics, and Psychology.

REGISTER TO VISIT (click on link and select "It's All About Science and Math")

General Itinerary

10:00 - Introduction to Opportunities in Science and Math at Georgia Tech 

11:15 - Attend a science or math class with a student host and meet a professor. Classes/groups will visit a research lab during this time, and learn some science!

12:05 – Visitors will be provided lunch and can chat with College of Sciences faculty, students and advisors.

Optional activities: After lunch, individual prospective students and guests are encouraged to attend a freshmen admission information session and campus tour if they are visiting the campus for the first time. Be sure to sign up for the 1:15pm general session and campus tour when you register for It's All About Science and Math. 

1:15 – Freshmen admission information session, Student Success Building, Clary Theater

2:15 - Campus tour, departs from Student Success Building

3:30 - Meet a financial aid advisor (walk-ins accepted), Student Success Building, 3rd Floor

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School of Physics Nonlinear Science & Mathematical Physics Seminar: Prof. Niklas Manz, College of Wooster

Excitation waves are propagating spatiotemporal structures observed in many biological, chemical, and physical systems. They can be described as a reaction-diffusion (RD) wave in which an autocatalytic reaction zone propagates via diffusion without mass transport. More common types of RD waves are the propagation of an action potential in a nerve, the spread of electrical depolarization waves on the heart surface, the (human spectator) stadium wave, or a forest fire.

All RD systems can be described with one set of nonlinear differential equations and experimentally investigated with, for example, a chemical tabletop model system, the Belousov-Zhabotinsky reaction or with match sticks.

I will give an overview of this research field and present two projects which are also relevant to research in the Physics Department at the Georgia Institute of Technology.

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School of Physics Soft Condensed Matter Seminar: Prof. Thorsten Ritz, University of California, Irvine

Migratory birds and other animals possess a physiological magnetic compass that helps them to find directions, but the biophysical mechanism underlying this ability remains a mystery. One currently much discussed hypothesis is that light-induced magnetically sensitive radical pair reactions may provide the first step of a magnetic signal.

While this mechanism is well understood in principle, generic radical pairs require magnetic fields about an order of magnitude above the geomagnetic field for effects to be observed. We will discuss what factors optimize sensitivity of radical pairs and address experimental support for the radical pair hypothesis.

A candidate molecule is the blue-green light photoreceptor cryptochrome. We will present recent attempts to observe magnetic field effects on in vivo read outs of cryptochrome activity in biological cells as a step towards an elucidation of magnetic signal transduction and, possibly, magnetogenetic approaches.

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CRIDC aims to equip Georgia Tech graduate students with tools and insights to survive and thrive in the ever-changing technological, financial, and political landscapes of the 21st-century employment market. The conference will provide graduate students of all majors and degree types opportunities to explore varied career paths.

The 2018 CRIDC features a new component – A Graduate Career Fair,  which is tailored to the needs of Georgia Tech graduate students.

2018 CRIDC features the following events:

  • Panels (differentiated into industry, consulting, academia, entrepreneurship, and government/national labs)
  • Company Talks (informational sessions of various companies)
  • Workshops
  • Poster Competition
  • VentureLab Innovation Competition
  • Graduate Career Fair (new!)
  • Additional Networking Opportunities

Visit the CRIDC Website for more information.

EDITOR'S NOTE: This event was first announced on the Georgia Tech campus calendar. For updates, check the original posting

Event Details

Date/Time:

We invite high school students (and their guests) who are interested in learning about undergraduate degree programs in the College of Sciences at Georgia Tech to attend the open house “It’s All About Science and Math.” Visitors will learn about opportunities in the degree programs listed below, receive information about admission requirements and financial aid, attend a class, and tour scientific facilities/labs and parts of campus. This program is free to visitors and guests.

Due to limited space, participants are encouraged to sign up early. To schedule a class or group visit, please contact Dr. Cameron Tyson.

Degree programs:  BiochemistryBiologyChemistryEarth & Atmospheric SciencesMathematics, Neuroscience, Physics, and Psychology.

REGISTER TO VISIT (click on link and select "It's All About Science and Math")

General Itinerary

10:00 - Introduction to Opportunities in Science and Math at Georgia Tech 

11:15 - Attend a science or math class with a student host and meet a professor. Classes/groups will visit a research lab during this time, and learn some science!

12:05 – Visitors will be provided lunch and can chat with College of Sciences faculty, students and advisors.

Optional activities: After lunch, individual prospective students and guests are encouraged to attend a freshmen admission information session and campus tour if they are visiting the campus for the first time. Be sure to sign up for the 1:15pm general session and campus tour when you register for It's All About Science and Math. 

1:15 – Freshmen admission information session, Student Success Building, Clary Theater

2:15 - Campus tour, departs from Student Success Building

3:30 - Meet a financial aid advisor (walk-ins accepted), Student Success Building, 3rd Floor

Event Details

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School of Physics Soft Condensed Matter & Physics of Living Systems Seminar: Prof. Max Lavrentovich, University of Tennessee

Certain non-equilibrium systems, including growing microbial colonies, amorphous solids under oscillatory shear, turbulent liquid crystals, and avalanches undergo dynamical phase transitions across which we observe fluctuating, active regions of the system either propagate and grow with time, or go extinct, forcing the system into an absorbing state. 

We will focus on such transitions in two very different systems: a microbial colony in which a fit strain irreversibly converts to a less fit one (leading to the possibility of strain extinction), and a dense, amorphous solid under oscillatory shear. In the case of the microbial colony, we show that the spatial distribution and geometry of the colony profoundly impacts the phase transition, with spatial fluctuations driving extinction of the fit strain. 

In the driven amorphous solid, we show that the dynamical phase transition competes with another phase transition at which the solid loses rigidity: the jamming point.  We show that as the jamming point is approached, the absorbing states associated with reversible, quiescent dynamical behavior become more and more complex.

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We will invite admitted prospective students to attend our EXPLORE Science and Math! program. EXPLORE Science and Math! is the Georgia Tech College of Sciences program for admitted prospective students and their guests.

The program introduces prospective students to the classes and research opportunities available to them as College of Sciences scholars. Members of the College of Sciences faculty and administration will be on hand to answer questions and offer guidance on academic advising. Prospective students will also attend a Science and Math fair that will include several campus-wide organizations, as well as students currently studying in their field of interest.

Space fills up quickly; invitees should register as early as possible.

Due to the popularity of this event, we can accommodate only admitted students and their guests. We encourage others with an interest in Georgia Tech's science and mathematics degree programs to attend one of our "It's All About Science and Math" open houses.

Schedule

9:00: Arrive on campus

  • Park in Visitor Lot 1 or 3 (to be eligible for parking validation) and walk to the Clough Undergraduate Learning Commons, Room 144. Refreshments will be available.

9:30:  Welcome and Overview of Opportunities in the College of Sciences: Dean Paul Goldbart, Associate Dean David Collard, Assistant Dean Cameron Tyson

10:15:  Research Keynote Talks by Professors (Mini-research symposium)

12:00:  Lunch-Meet with professors, advisors, and students from your preferred major. A free box lunch and drinks are provided for students and guests.

1:00:  Science and Math Fair

  • Visit with school advisors, student organizations, undergraduate researchers, the Office of Scholarships and Financial Aid, the Office of International Education, the Pre-Health Advisor/Prehealth Panel, the Office of Housing, Arts at Georgia Tech representatives, Greek Life science and math majors, Honors Program representatives, Campus recreation representatives, the Office of Career Development and Discovery (co-ops, internships, career planning), and GT campus safety
  • Tour Clough Commons laboratories.

2:40:  Student Panel

  • Gain new insights from students – housing, class selection, getting a research position, study abroad, and much more. You ask the questions. What do you want to know?

3:15:  Closing/Departure/Visit Residence Hall Option

  • Collect parking voucher from registration desk
  • Option:  Georgia Tech Housing representatives will offer a visit to a campus residence hall/dorm room at 3:15-4:00pm. Meet outside of Room 152, in the Clough atrium. The tour will involve a 10-minute walk to west campus housing. 

Questions? Please contact Cameron Tyson.

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