Now showing items 444-463 of 693

  • Pacific plate deformation from horizontal thermal contraction 

    Kreemer, Corné; Gordon, Richard G. (2014-08-15)
    The central approximation of plate tectonics is that the plates are rigid, which gives the theory its rigor and predictive power. Space geodetic measurements are consistent with the rigidity of stable plate interiors, but ...
  • Paintable Battery 

    Singh, Neelam; Galande, Charudatta; Miranda, Andrea; Mathkar, Akshay; Gao, Wei; Reddy, Arava Leela Mohana; Vlad, Alexandru; Ajayan, Pulickel M. (2012-06-28)
    If the components of a battery, including electrodes, separator, electrolyte and the current collectors can be designed as paints and applied sequentially to build a complete battery, on any arbitrary surface, it would ...
  • Pairing and Phase Separation in a Polarized Fermi Gas 

    Partridge, Guthrie B.; Li, Wenhui; Kamar, Ramsey I.; Liao, Yean-an; Hulet, Randall G. (2006)
    We report the observation of pairing in a gas of atomic fermions with unequal numbers of two components. Beyond a critical polarization, the gas separates into a phase that is consistent with a superfluid paired core ...
  • Performance of the CMS missing transverse momentum reconstruction in pp data at √s = 8 TeV 

    CMS Collaboration; Adair, A.; Akgun, B.; Ecklund, K.M.; Geurts, F.J.M.; Li, W.; Michlin, B.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2015)
    The performance of missing transverse energy reconstruction algorithms is presented using √s=8 TeV proton-proton (pp) data collected with the CMS detector. Events with anomalous missing transverse energy are studied, and ...
  • Permanent magnet trap for cold atoms 

    Tollett, J.J.; Bradley, C.C.; Sackett, C.A.; Hulet, R.G. (1995)
    We report the trapping of neutral atoms in a permanent magnet trap. Approximately 1×10˄8 ground-state lithium atoms have been confined in a nonzero magnetic-field minimum produced by six permanent magnets in an Ioffe ...
  • Peroxisomes Are Required for Lipid Metabolism and Muscle Function in Drosophila melanogaster 

    Faust, Joseph E.; Manisundaram, Arvind; Ivanova, Pavlina T.; Milne, Stephen B.; Summerville, James B.; Brown, H. Alex; Wangler, Michael; Stern, Michael; McNew, James A. (2014-06-19)
    Peroxisomes are ubiquitous organelles that perform lipid and reactive oxygen species metabolism. Defects in peroxisome biogenesis cause peroxisome biogenesis disorders (PBDs). The most severe PBD, Zellweger syndrome, is ...
  • Petawatt laser absorption bounded 

    Levy, Matthew C.; Wilks, Scott C.; Tabak, Max; Libby, Stephen B.; Baring, Matthew G. (2014)
    The interaction of petawatt (1015W) lasers with solid matter forms the basis for advanced scientific applications such as table-top particle accelerators, ultrafast imaging systems and laser fusion. Key metrics for these ...
  • Phase coherence and superfluid-insulator transition in a disordered Bose-Einstein condensate 

    Chen, Yong P.; Hitchcock, J.; Dries, D.; Junker, M.; Welford, C.; Hulet, R.G. (2008)
    We have studied the effects of a disordered optical potential on the transport and phase coherence of a Bose-Einstein condensate (BEC) of L7i atoms. At moderate disorder strengths (VD), we observe inhibited transport and ...
  • Phase diagram structures in a periodic one-dimensional exclusion process 

    Jiang, Rui; Wang, Yu-Qing; Kolomeisky, Anatoly B.; Huang, Wei; Hu, Mao-Bin; Wu, Qing-Song (2013-01-08)
    This paper studies a periodic one-dimensional exclusion process composed of a driven part and a biased diffusive part in a mesoscopic limit. It is shown that, depending on the biased diffusion parameter δ, rich phase diagram ...
  • Photoabsorption by Ultracold Atoms and the Scattering Length 

    Côté, R.; Dalgarno, A.; Sun, Y.; Hulet, R.G. (1995)
    It is shown that photoabsorption in a gas of ultracold atoms depends on the sign and magnitude of the scattering length in the scattering of a pair of atoms. Measurements of fluorescence in 7Li are interpreted to show that ...
  • Photoassociation of a Bose-Einstein Condensate near a Feshbach Resonance 

    Junker, M.; Dries, D.; Welford, C.; Hitchcock, J.; Chen, Y.P.; Hulet, R.G. (2008)
    We measure the effect of a magnetic Feshbach resonance (FR) on the rate and light-induced frequency shift of a photoassociation resonance in ultracold Li7. The photoassociation-induced loss-rate coefficient Kp depends ...
  • Photoassociative frequency shift in a quantum degenerate gas 

    Gerton, Jordan M.; Frew, Brian J.; Hulet, Randall G. (2001)
    A light-induced frequency shift is observed in single-photon photoassociative spectra of magnetically trapped, quantum degenerate 7Li. The shift is a manifestation of the coupling between the threshold continuum scattering ...
  • Photoassociative Spectroscopy at Long Range in Ultracold Strontium 

    Nagel, S.B.; Mickelson, P.G.; Saenz, A.D.; Martinez, Y.N.; Chen, Y.C.; Killian, T.C.; Pellegrini, P.; Cote, R. (2005-03-03)
  • Photobleaching Lifetimes of Cyanine Fluorophores Used for Single Molecule Förster Resonance Energy Transfer in the Presence of Various Photoprotection Systems 

    Cooper, David; Uhm, Heui; Tauzin, Lawrence J.; Poddar, Nitesh; Landes, Christy F. (2013-06-17)
    We investigated various photoprotection system combinations to find the combination that optimally extended the photobleach lifetime of a Cy3/Cy5 smFRET pair attached to a DNA hairpin in a single-molecule environment. We ...
  • Physical model of the immune response of bacteria against bacteriophage through the adaptive CRISPR-Cas immune system 

    Han, Pu; Niestemski, Liang Ren; Barrick, Jeffrey E.; Deem, Michael W. (2013)
    Bacteria and archaea have evolved an adaptive, heritable immune system that recognizes and protects against viruses or plasmids. This system, known as the CRISPR-Cas system, allows the host to recognize and incorporate ...
  • The physics of bacterial decision making 

    Ben-Jacob, Eshel; Lu, Mingyang; Schultz, Daniel; Onuchic, José N. (2014)
    The choice that bacteria make between sporulation and competence when subjected to stress provides a prototypical example of collective cell fate determination that is stochastic on the individual cell level, yet predictable ...
  • The Picard group of the moduli space of curves with level structures 

    Putman, Andrew (2012)
    For 4 - L and g large, we calculate the integral Picard groups of the moduli spaces of curves and principally polarized abelian varieties with level L structures. In particular, we determine the divisibility properties of ...
  • Pierced Lasso Bundles Are a New Class of Knot-like Motifs 

    Haglund, Ellinor; Sulkowska, Joanna I.; Noel, Jeffrey K.; Lammert, Heiko; Onuchic, José N.; Jennings, Patricia A. (2014)
    A four-helix bundle is a well-characterized motif often used as a target for designed pharmaceutical therapeutics and nutritional supplements. Recently, we discovered a new structural complexity within this motif created ...
  • Plant Peroxisomes: Biogenesis and Function 

    Hu, Jianping; Baker, Alison; Bartel, Bonnie; Linka, Nicole; Mullen, Robert T.; Reumann, Sigrun; Zolman, Bethany K. (2012-06)
    Peroxisomes are eukaryotic organelles that are highly dynamic both in morphology and metabolism. Plant peroxisomes are involved in numerous processes, including primary and secondary metabolism, development, and responses ...
  • Plant size and reproductive state affect the quantity and quality of rewards to animal mutualists 

    Miller, Tom E.X. (2014)
    Many plants engage ants in defensive mutualisms by offering extrafloral nectar (EFN). Identifying sources of variation in EFN quantity (amount) and quality (composition) is important because they can affect ant visitation ...