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  • Cell & Developmental Biology  (3)
  • ASTROPHYSICS  (2)
  • Electronic structure and strongly correlated systems  (2)
  • 2015-2019  (2)
  • 1990-1994  (5)
  • 1
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    Direct observation of anisotropic small-hole polarons in an orthorhombic structure of $\mathrm{BiV}{\mathrm{O}}_{4}$ films (2018)
    American Physical Society (APS)
    Details
    Publication Date: 2018-05-26
    Description: Author(s): A. Chaudhuri, L. Mandal, X. Chi, M. Yang, M. C. Scott, M. Motapothula, X. J. Yu, P. Yang, Y. Shao-Horn, T. Venkatesan, A. T. S. Wee, and A. Rusydi Here, we report an anisotropic small-hole polaron in an orthorhombic structure of BiV O 4 films grown by pulsed-laser deposition on yttrium-doped zirconium oxide substrate. The polaronic state and electronic structure of BiV O 4 films are revealed using a combination of polarization-dependent x-ray abso... [Phys. Rev. B 97, 195150] Published Fri May 25, 2018
    Keywords: Electronic structure and strongly correlated systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 2
    Electronic Resource
    Electronic Resource
    A shell of F-actin surrounds the branched nuclei of silk gland cells (1992)
    New York, NY : Wiley-Blackwell
    Cell Motility and the Cytoskeleton 23 (1992), S. 169-187 
    Details
    ISSN: 0886-1544
    Keywords: nuclear actin ; nuclear myosin ; nuclear shell ; nuclear shape ; nuclear matrix ; silk gland ; nuclear structure ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The branched nuclei from silk gland cells of larvae of Calpodes ethlius label with antibodies to actin and myosin and with rhodaminyl-phalloin, which is specific for f-actin. Optical sectioning localizes this actin and myosin to the nuclear periphery. Residual nuclear-associated fractions prepared from these cells contain sheets of nuclear lamina-like structures that bind heavy meromyosin and gold-tagged antibodies to actin and myosin. The results suggest that both actin and myosin, or a myosin-like protein, are components of a layer at the nucleocytoplasmic boundary that we call the nuclear shell. The nuclear shell appears to be associated with the nuclear envelope and may correspond to a zone on the cytoplasmic face of the envelope seen in electron micrographs of unextracted cells. The residual nuclear-associated fraction has a unique isoform of actin (43 kD, pl 6.45) that might allow the nuclei to associate with an actin network structurally and developmentally distinct from that of the cytoplasm. © 1992 Wiley-Liss, Inc.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cm.970230302
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The redeployment of F-actin in silk glands during moulting (1992)
    New York, NY : Wiley-Blackwell
    Cell Motility and the Cytoskeleton 21 (1992), S. 101-110 
    Details
    ISSN: 0886-1544
    Keywords: F-actin ; silk gland ; phalloin ; periluminal circumferential actin bundles ; actin-coated vacuoles ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Labeling of silk glands with rhodaminyl-phalloin shows that most F-actin is restricted to parallel bundles that form rings around the gland lumen at the apical cell surface. The bundles are lost when larval feeding stops at moulting, and the F-actin is redistributed through the cytoplasm as coats to vacuoles and, occasionally, in variably oriented strands. After moulting there is a return to the distribution of filamentous actin in the apical periluminal rings of bundles. These events occur at the same time as F-actin in the nuclear shell [Henderson and Locke, submitted] undergoes its own set of changes. In silk gland cells two kinds of f-actin deployment take place concurrently.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cm.970210203
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  • 4
    Electronic Resource
    Electronic Resource
    Cephalometric correlates of echolocation in the chiroptera (1993)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 218 (1993), S. 85-98 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: This study suggests that the evoution of head posture is bats is constrained by the demands of vocalization during echolocation. Nasalemitting microchiropteran taxa are easily identified by their characteristic rotation of the basicranium ventrally about the cervical axis, the depression of the rostrum below the basicranial axis, and by the rotation of the lateral semicircular canals so as to maintain their horizontal orientation during flighrt. The converse is true for oral-emitting Microchiroptera. The general form of the microchiropteran skull has been canalized along two distinct evolutionary paths, respectively, towards oral-emitting or nasal-emitting forms. © 1993 Wiley-Liss, Inc.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1052180107
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  • 5
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    Transfer of spectral weight across the gap of Sr_{2} IrO_{4} induced by La doping (2015)
    American Physical Society (APS)
    Details
    Publication Date: 2015-09-01
    Description: Author(s): Véronique Brouet, Joseph Mansart, Luca Perfetti, Christian Piovera, Ivana Vobornik, Patrick Le Fèvre, François Bertran, Scott C. Riggs, M. C. Shapiro, Paula Giraldo-Gallo, and Ian R. Fisher We study with angle-resolved photoelectron spectroscopy the evolution of the electronic structure of Sr 2 IrO 4 , when holes or electrons are introduced, through Rh or La substitutions. At low dopings, the added carriers occupy the first available states, at the bottom or top of the gap, revealing an as… [Phys. Rev. B 92, 081117(R)] Published Mon Aug 31, 2015
    Keywords: Electronic structure and strongly correlated systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 6
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    Crab pulsar giant pulses: Simultaneous radio and GRO observations (1992)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: Observations are reported of the Crab pulsar made at radio frequencies concurrent with Oriented Scintillation Spectrometer Experiment (OSSE) observations from 15 to 27 May 1991. Using the 43 m telescope at Green Bank at 0.8 and 1.4 GHz, samples were made continuously for 10 hrs/day at intervals of 100 to 300 microsecs. The analysis of the radio data includes calculation of histograms of pulse intensities, absolute timing to about 20 microsec precision, and characterization of intensity variations on time scales from the 33 ms spin period to days. The most detailed analysis is presented made of giant pulses. The ultimate goal is to bin the radio data into giant and nongiant pulses and to form average waveforms of OSSE data for the corresponding pulse periods. A test is done to see whether the violet radio fluctuations (which are not seen in other radio pulsars to the same degree) are correlated with low energy gamma rays, yielding constraints on the radio coherence mechanism and the steadiness of the electron-positron outflow in the magnetosphere. Timing analysis of the radio data provides a well defined ephemeris over the specified range of epochs. The gamma ray pulse phase was predicted with an error of less than 70 microsecs.
    Keywords: ASTROPHYSICS
    Type: NASA. Goddard Space Flight Center, The Compton Observatory Science Workshop; p 260-266
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    The Guitar nebula - A bow shock from a slow-spin, high-velocity neutron star (1993)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The discovery is reported of a prominent nebula produced by the motion of a high-velocity pulsar, PSR 2224 + 65, through partially neutral gas. The pulsar's transverse speed of over about 800 km/s makes it arguably the fastest known star in the Galaxy and guarantees that it will ultimately escape the Galactic potential well. A deep H-alpha image reveals a bright head and a giant limb-brightened 'body' whose variable width suggests that the ambient interstellar gas has density variations on length scales less than 0.1 pc. Thermalization of shock energy occurs at a rate of about 0.01 times the pulsar's spindown loss rate. These observations provide some insights into the likelihood of finding shocks around other pulsars and the use of nebulae to find high-velocity neutron stars either not acting as pulsars or with their radiation beamed away from the earth.
    Keywords: ASTROPHYSICS
    Type: Nature (ISSN 0028-0836); 362; 6416; p. 133-135.
    Format: text
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