Georgia Tech Biology Related Seminars

  • Feb 28

    Development of Distributed Functional Networks in Visual Cortex

    Georgia Tech, EBB 1005

    Gordon Smith, Massachusetts Institute of Technology

    Early developmental events are critical for defining and constraining future capabilities, yet our understanding of the structure and plasticity of cortical circuits during early development remains poor. By using cutting-edge imaging approaches in the ferret, I have been able to examine the early development of the large-scale distributed functional networks that are a hallmark of visual cortical organization in higher mammals. Through a combination of wide-field and 2-photon calcium imaging, my results demonstrate that correlations in ongoing spontaneous activity reflect highly organized long-range networks in the early cortex, prior to the formation of long-range horizontal connectivity. Furthermore, chronic in vivo imaging experiments show that early correlations in spontaneous activity are predictive of future visually-evoked responses, well before those correlated networks can be engaged by visual stimuli. In addition, computational modeling shows that purely local connectivity, if anisotropic and heterogeneous, is sufficient to explain the presence of long-range correlations in the early cortex prior to the emergence of long-range connections. Together, these results reveal surprising and fundamental features of early cortical circuits and suggest that the large-scale correlations generated through local connectivity during early development may form the basis for large-scale distributed networks in the mature visual cortex.

  • Feb 28

    BME Speaker Seminar with Kyle Allison, Ph.D.*

    McIntire Room 3115, Whitaker Bldg.; Videoconference: Emory: HSRB E182 Georgia Tech: TEP 104

  • Feb 28

    Role of Electrophysiological Oscillations in Health and Disease

    Georgia Tech, EBB 1005

    Converging work suggests that oscillatory patterns in electrophysiological data are fundamental motifs in brain networks, which may underlie between-region communication. Abnormalities in these oscillations may result in pathology. In this talk I will describe my work using a combination of invasive (electrocorticography, ECoG, and local field potentials, LFPs) and noninvasive (electroencephalography, EEG) human electrophysiology to describe oscillatory activity in the motor system. The talk will cover putative mechanisms by which these oscillations may drive behavior (specifically response control), and how they may be awry in diseases such as Parkinson’s disease. I will also discuss potential use of these oscillations as feedback signals for neuroprosthetics. This work addresses fundamental principles about the role of oscillatory patterns in the motor network, themes that likely extend to other brain networks that underlie diverse behaviors/functions.

  • Feb 28

    Integrated Cancer Research Center Seminar

    Petit Institute, Room 1128 - Georgia Tech

  • Feb 28

    How Things in the Universe Came About & How They Ended Up Within Us

    Room 152 Clough Undergraduate Learning Commons, 266 4th St NW, Atlanta, GA 30313

    Tom Abel of Stanford University will take you on a journey through the early stages of the universe, using the latest computer animations of how the first stars formed and died and how stars built up the first galaxies.

  • Mar 1

    ChBE Seminar Series - Cary Lecture: Frank S. Bates

    Molecular Science and Engineering Building

  • Mar 2

    William Whitman, University of Georgia

    Georgia Tech, EBB 1005

    William B. Whitman
    Department of Microbiology
    University of Georgia, Athens

    Dimethylsulfoniopropionate (DMSP) is a common osmolyte of marine phytoplankton and ubiquitous in marine surface waters. DMSP is the precursor for the climatically active gas dimethylsulfide (DMS), which is the primary natural source of sulfur to the atmosphere.  DMS aids in cloud formation and is an anti-greenhouse gas.  Most of the DMSP-S released each year is processed by marine bacteria through one of two competing pathways. DMS is produced by the cleavage pathway, but only accounts for about 25% of the DMSP-S. Most of the DMSP-S is metabolized through the demethylation pathway, which leads to DMSP mineralization and sulfur assmiilation.  DMSP likely first became abundant in ocean environments about 250 mya in conjunction with the increased abundance of dinoflagellates and coccolithophores, and its metabolism by marine bacteria probably evolved after that time. In the marine alphaproteobacterium Ruegeria pomeroyi, the enzymes of the DMSP demethylation pathway appear to have been recruited from a variety of sources, especially short chain fatty acid degradation.  While some enzymes have undergone major changes in their catalyic properties, other have only undergone small changes in their substrate specificities. Similarly, R. pomeroyi possesses four unrelated DMSP ligases, the first enzyme of the cleavage pathway. The reason for this apparent redundancy is not understood.

  • Mar 4

    6th Squishy Physics Saturday - “Gelation, Sous vide and Caramelization”

    Clough Undergraduate Learning Commons, Rm. 152

  • Mar 6

    GT Neuro Seminar Series

    Engineered Biosystems Building (EBB), Room 1005 - Atlanta, GA

  • Mar 7

    BME Speaker Seminar with Ester Kwon, Ph.D. *

    McIntire Room 3115, Whitaker Bldg.; Videoconference: Emory: HSRB E160 Georgia Tech: TEP 104

  • Mar 8

    Bose-Einstein condensation of magnons at room temperature: creation, spatio-temporal properties and possible superfluidity

    Howey Physics Building - 837 State St., Atlanta GA 30332 - Room N110

  • Mar 8

    IMPACT presents Terry Maple, "Professor in the Zoo - Designing the Future for Wildlife in Human Care"

    LeCraw Auditorium, Scheller College of Business, 800 West Peachtree Street NW, Atlanta, GA 30308

  • Mar 9

    Quantum capacitance anomalies of two-dimensional non-equilibrium states under microwave irradiation

    Howey Physics Bldg. Rm. N110

  • Mar 10

    Collective dynamics in motile cilia: waves in the airways

    Howey N110

  • Mar 13

    GT Neuro Seminar Series

    Engineered Biosystems Building (EBB), Room 1005 - Atlanta, GA

  • Mar 14

    Breakfast Club Seminar

    Parker H. Petit Institute for Bioengineering and Bioscience, Room 1128

  • Mar 15

    Georgia Tech's K-12 - InVenture Challenge State Finals 2017

    Georgia Tech Student Center

    Top K-12 student teams will compete in the K-12 - InVenture Challenge state finals at Georgia Tech. The competition will take place from approximately 11:30 AM- 2PM in the Georgia Tech Student Center.

  • Mar 16

    2017 VWR Seminar: Building Chromatin: Assembly and Evolution of Nucleosomes

    Georgia Tech, EBB 1005

    Karolin Luger
    Jennie-Smoly-Caruthers Endowed Chair of Chemistry and Biochemistry
    University of Colorado


    Nucleosome assembly in the wake of DNA replication is a key process that regulates cell identity and survival. Chromatin assembly factor 1 (CAF-1) is a H3-H4 histone chaperone that associates with the replisome and orchestrates chromatin assembly following DNA synthesis. Little is known about the mechanism and structure of this key complex. We investigate CAF-1 – histone binding modes and describe an intriguing ‘snap-on’ mechanism by which CAF-1 assembles nucleosomes.

    In contrast to eukaryotes, many archaea have histone-based chromatin that does not require assembly factors. I will present the structure of archaeal chromatin, and discuss possible implications for the origins of the eukaryotic nucleosome.

  • Mar 23

    Irene Newton, Indiana University

    Georgia Tech, EBB 1005

  • Apr 11

    Breakfast Club Seminar

    Parker H. Petit Institute for Bioengineering and Bioscience, Room 1128

  • Apr 13

    Spin Coherence of Rubidium Atoms in Solid Parahydrogen

    Howey Physics Bldg, 837 State St., Atlanta GA 30332 - Rm. N110

  • May 9

    Breakfast Club Seminar

    Parker H. Petit Institute for Bioengineering and Bioscience, Room 1128