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Meetings & Workshops

  1. APR

    30

    Wednesday

    BSA Distinguished Lecture

    "Life Redesigned: The Emergence of Synthetic Biology"

    Presented by Professor James Collins, Howard Hughest Medical Institute, Boston University, Harvard University

    4 pm, Berkner Hall Auditorium

    Wednesday, April 30, 2014, 4:00 pm

    Hosted by: Peter Wanderer

    Synthetic biology is bringing together engineers, physicists and biologists to model, design and construct biological circuits out of proteins, genes and other bits of DNA, and to use these circuits to rewire and reprogram organisms. These re-engineered organisms are going to change our lives in the coming years, leading to cheaper drugs, rapid diagnostic tests, and targeted therapies to attack "superbugs". In this talk, we highlight recent efforts to create synthetic gene networks and programmable cells, and discuss a variety of synthetic biology applications in biocomputing, biotechnology and biomedicine.

  2. MAY

    9

    Friday

    Nuclear Physics & RIKEN Theory Seminar

    "Quarks in strong magnetic fields"

    Presented by Toru Kojo

    2 pm, Small Seminar Room, Bldg. 510

    Friday, May 9, 2014, 2:00 pm

    Hosted by: Bjoern Schenke

    It has been known that magnetic fields enhance the chiral symmetry breaking (ChSB). According to studies of QED or models of the 4-fermi interactions, it was expected that the enhanced ChSB would resist the chiral restoration effects, increasing critical temperatures for the chiral restoration and deconfinement. Recent lattice calculations, however, showed the opposite behavior: the critical temperatures are reduced as a magnetic field increases. I will discuss how to resolve this apparent paradox, emphasizing which characteristic features of QCD make differences from other models.

  3. JUN

    11

    Wednesday

    Condensed-Matter Physics & Materials Science Seminar

    "Frustration-induced phase separation and magnetoelectric effects in a triangular spin lattice"

    Presented by Alexandros Lappas, Institute of Electronic Structure and Laser, Greece

    1:30 pm, ISB Bldg. 734, Conf. Rm. 201 (upstairs)

    Wednesday, June 11, 2014, 1:30 pm

    Hosted by: Simon Billinge

    Chemically homogeneous, strongly correlated transition-metal oxides, with competing states, may display phase separation when the electron charge is coupled to spin or lattice degrees of freedom. Similar nanoscale inhomogeneities in insulating spin systems are rare and poorly understood, although they have been theoretically predicted to arise from geometrical frustration already in the doping-free limit. In this respect, the spatially-anisotropic triangular spin system NaMnO2 [1, 2], provides a paradigm where fingerprints of a unique magnetostructurally inhomogeneous ground state are identified. For this purpose we review our comprehensive structural synchrotron X-ray diffraction and HAADF-STEM investigations, which are complemented by local-probe NMR and muon-spin relaxation (μ+SR) measurements, incorporating also ab initio calculations [2]. We argue that the Néel order evolves as the outcome of symmetry-breaking pinning sites (e.g. interphases) due to the local-scale inhomogeneity which is endorsed by the inherent frustrated topology of the spin lattice. Remarkably, frustration-mediated structural complexity in this manganite goes beyond the limitations of the bulk symmetry and magnetoelectricity is unveiled in an otherwise collinear magnetic system. [1] M. Giot, L.C. Chapon, J. Androulakis, M.A. Green, P.G. Radaelli, and A. Lappas, Phys. Rev. Lett. 2007, 99, 247211. [2] C. Stock, L.C. Chapon, O. Adamopoulos, A. Lappas, M. Giot, J.W. Taylor, M.A. Green, C.M. Brown, and P.G. Radaelli, Phys. Rev. Lett. 2009, 103, 077202. [3] A. Zorko, O. Adamopoulos, M. Komelj, D. Arcon, and A. Lappas, Nat. Commun. 2014, 5:3222 doi: 10.1038/ncomms4222.