Now showing items 8048-8067 of 24465

    • Ferristatin II Promotes Degradation of Transferrin Receptor-1 In Vitro and In Vivo 

      Byrne, Shaina L.; Buckett, Peter D.; Kim, Jonghan; Luo, Flora; Sanford, Jack; Chen, Juxing; Enns, Caroline; Wessling-Resnick, Marianne (Public Library of Science, 2013)
      Previous studies have shown that the small molecule iron transport inhibitor ferristatin (NSC30611) acts by down-regulating transferrin receptor-1 (TfR1) via receptor degradation. In this investigation, we show that another ...
    • Ferromagnetic Ga1-xMnx as Films Produced by Ion Implantation and Pulsed Laser Melting 

      Scarpulla, Michael A.; Dubon, Oscar D.; Yu, Kin Man; Monteiro, Orthon; Pillai, Manoj R.; Aziz, Michael; Ridgway, Mark C. (American Institute of Physics, 2003)
      We demonstrate the formation of ferromagnetic Ga<sub>1-x</sub>Mn<sub>x</sub>As films by Mn ion implantation into GaAs followed by pulsed-laser melting. Irradiation with a single excimer laser pulse results in the epitaxial ...
    • Ferruginous Conditions Dominated Later Neoproterozoic Deep-water Chemistry 

      Canfield, Donald E.; Poulton, Simon W.; Knoll, Andrew; Narbonne, Guy M.; Ross, Gerry; Goldberg, Tatiana; Strauss, Harald (American Association for the Advancement of Science, 2008)
      Earth's surface chemical environment has evolved from an early anoxic condition to the oxic state we have today. Transitional between an earlier Proterozoic world with widespread deep- water anoxia and a Phanerozoic world ...
    • Fertility and the Plough 

      Alesina, Alberto Francesco; Giuliano, Paola; Nunn, Nathan (American Economic Association, 2011)
      This paper provides evidence that the form of agriculture traditionally practiced—intensive plough agriculture versus shifting hoe agriculture—affected historic norms and preferences about fertility, and that these norms ...
    • Fervent Faith. Devotion, Aesthetics, and Society in the Cult of Our Lady of Remedios (Mexico, 1520-1811) 

      Granados Salinas, Rosario (2012-07-23)
      This study examines the cult of Our Lady of Remedios from an art-historical perspective. Choosing this specific cult statue as a case study is not arbitrary: Remedios is among the oldest Marian images in the New World and ...
    • Feshbach resonances in ultracold atom-diatom scattering 

      Forrey, R. C.; Balakrishnan, N.; Kharchenko, V.; Dalgarno, A. (American Physical Society, 1998)
      Quantum-mechanical scattering calculations of Feshbach resonances arising from van der Waals molecule formation are used to determine vibrational and rotational predissociation lifetimes. A multichannel effective range ...
    • Fetal Health and the Environment 

      Leung, Michael (2021-09-09)
      Whether fetuses are vulnerable to the effects of environmental exposures is a difficult question to answer due to the internal, and therefore, hidden nature of conceptions and early embryonic development. Studies of prenatal ...
    • Fetal Load and the Evolution of Lumbar Lordosis in Bipedal Hominins 

      Whitcome, Katherine Kay; Shapiro, Liza J.; Lieberman, Daniel Eric (Nature Publishing Group, 2007)
    • Fetal Programming and Fetal Psychology 

      Ellison, Peter T. (John Wiley & Sons, Ltd., 2010)
      The introduction of the ‘fetal programming hypothesis’, first in epidemiology, subsequently in a broad range of disciplines concerned with developmental biology, has generated new interest in phenotypic plasticity, the ...
    • A few analytical solutions to the linear Boltzmann transport equation with an application to channeling 

      Golovchenko, Jene Andrew (American Physical Society (APS), 1976)
      Some exact solutions to the linear Boltzmann transport equation in a one-dimensional space are presented. These results may be applied to demonstrate the trend towards statistical equilibrium of fast channeled particles ...
    • A Few Things for Themselves 

      Guzzetti, Alfred Felix (Johns Hopkins University Press, 2008)
      What characteristics inform the camera's view of things? Is a photograph or a film image capable of offering a view of an object simply for itself, regarded for itself, or must that view at its origin bring along a baggage ...
    • Few-body bound complexes in one-dimensional dipolar gases and nondestructive optical detection 

      Zinner, N. T.; Wunsch, B.; Mekhov, I. B.; Huang, S.-J.; Wang, D.-W.; Demler, E. (American Physical Society, 2011)
      We consider dipolar interactions between heteronuclear molecules in low-dimensional geometries. The setup consists of two one-dimensional tubes. We study the stability of possible few-body complexes in the regime of repulsive ...
    • Few-Body Bound States in Dipolar Gases and Their Detection 

      Wunsch, B.; Zinner, N. T.; Mekhov, I. B.; Huang, S.-J.; Wang, D.-W.; Demler, E. (American Physical Society, 2011)
      We consider dipolar interactions between heteronuclear molecules in a low-dimensional setup consisting of two one-dimensional tubes. We demonstrate that attraction between molecules in different tubes can overcome intratube ...
    • Feynman Graphs and Renormalization in Quantum Diffusion 

      Erdos, Laszlo; Salmhofer, Manfred; Yau, Horng-Tzer (World Scientific Publishing, 2008)
      We review our proof that in a scaling limit, the time evolution of a quantum particle in a static random environment leads to a diffusion equation. In particular, we discuss the role of Feynman graph expansions and of ...
    • Feynman’s Clock, a New Variational Principle, and Parallel-in-Time Quantum Dynamics 

      McClean, Jarrod Ryan; Parkhill, John Anthony; Aspuru-Guzik, Alan (National Academy of Sciences, 2013)
      We introduce a discrete-time variational principle inspired by the quantum clock originally proposed by Feynman and use it to write down quantum evolution as a ground-state eigenvalue problem. The construction allows one ...
    • Fgd5 identifies hematopoietic stem cells in the murine bone marrow 

      Gazit, Roi; Mandal, Pankaj K.; Ebina, Wataru; Ben-Zvi, Ayal; Nombela-Arrieta, César; Silberstein, Leslie E.; Rossi, Derrick J. (The Rockefeller University Press, 2014)
      Hematopoietic stem cells (HSCs) are the best-characterized tissue-specific stem cells, yet experimental study of HSCs remains challenging, as they are exceedingly rare and methods to purify them are cumbersome. Moreover, ...
    • FGF-23–Klotho signaling stimulates proliferation and prevents vitamin D–induced apoptosis 

      Medici, Damian; Razzaque, Mohammed S.; DeLuca, Stephelynn; Rector, Trent L.; Hou, Bo; Kang, Kihwa; Goetz, Regina; Mohammadi, Moosa; Kuro-o, Makoto; Olsen, Bjorn R.; Lanske, Beate (Rockefeller University Press, 2008)
      Fibroblast growth factor 23 (FGF-23) and Klotho are secretory proteins that regulate mineral-ion metabolism. Fgf-23(-/-) or Klotho(-/-) knockout mice exhibit several pathophysiological processes consistent with premature ...
    • Fiber Four-Wave Mixing Source for Coherent Anti-Stokes Raman Scattering Microscopy 

      Lefrancois, Simon; Fu, Dan; Holtom, Gary R.; Kong, Lingjie; Wadsworth, William J.; Schneider, Patrick; Herda, Robert; Zach, Armin; Xie, Xiaoliang Sunney; Wise, Frank W. (The Optical Society, 2012)
      We present a fiber-format picosecond light source for coherent anti-Stokes Raman scattering microscopy. Pulses from an Yb-doped fiber amplifier are frequency-converted by four-wave mixing in normal dispersion photonic ...
    • Fiber Optic Projection-Imaging System for Shape Measurement in Confined Space 

      Chen, Lujie; Bavigadda, Viswanath; Kofidis, Theodoros; Howe, Robert D. (Hindawi Publishing Corporation, 2014)
      A fiber-based projection-imaging system is proposed for shape measurement in confined space. Owing to the flexibility of imaging fibers, the system can be used in special scenarios that are difficult for conventional ...