1,762 research outputs found

    Dressing Their Best: Independent Fashion Bloggers and the Complexities of Ethos

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    Fashion is a site of cultural production where issues of gender, identity and consumerism meet. While the rhetoric of the fashion industry often remains focused on innovation at the expense of women\u27s lived experiences, independent fashion bloggers provide a necessary cultural critique of its practices. However, as the fashion industry pays more attention to bloggers in order to engage their growing readership, bloggers’ oppositional role has become more complicated. To explore the current context of these women’s writing in relation to a powerful economic industry, I analyze the role that ethos plays as a rhetorical concept and analyze how it is used by female bloggers who write about women’s fashion. In light of recent scholarship and of the current media landscape, bloggers’ use of ethos is important to their work even as it is complex and contradictory

    Static critical behavior of the ferromagnetic transition in LaMnO3.14 manganite

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    The ferromagnetic phase transition in LaMnO3.14 is investigated by measuring the dc magnetization as a function of magnetic field and temperature. Modified Arrott plot and Kouvel Fisher analysis yield estimates for the critical exponents beta, and gama, with values between that predicted for the Heisenberg model and mean field theory. At low fields we found an anomalous small value of beta, indicating that the critical behavior is influenced by the range of magnetic fields used.Comment: Presented at ICM 2000 conference. Accepted for publication at J. Magn. Magn. Mate

    Half-skyrmion picture of single hole doped CuO_2 plane

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    Based on the Zhang-Rice singlet picture, it is argued that the half-skyrmion is created by the doped hole in the single hole doped high-T_c cuprates with N'eel ordering. The spin configuration around the Zhang-Rice singlet, which has the form of superposition of the two different d-orbital hole spin states, is studied within the non-linear \sigma model and the CP^1 model. The spin configurations associated with each hole spin state are obtained, and we find that the superposition of these spin configuration turns out to be the half-skyrmion that is characterized by a half of the topological charge. The excitation spectrum of the half-skyrmion is obtained by making use of Lorentz invariance of the effective theory and is qualitatively in good agreement with angle resolved photoemission spectroscopy on the parent compunds. Estimated values of the parameters contained in the excitation spectrum are in good agreement with experimentally obtained values. The half-skyrmion theory suggests a picture for the difference between the hole doped compounds and the electron doped compounds.Comment: 13 pages, 2 figures, to be published in Phys. Rev.

    Timing Studies on RXTE Observations of SAX J2103.5+4545

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    SAX J2103.5+4545 has been continuously monitored for \sim 900 days by Rossi X-ray Timing Explorer (RXTE) since its outburst in July 2002. Using these observations and previous archival RXTE observations of SAX J2103.5+4545, we refined the binary orbital parameters and find the new orbital period as P= (12.66536 ±\pm 0.00088) days and the eccentricity as 0.4055±\pm 0.0032. With these new orbital parameters, we constructed the pulse frequency and pulse frequency derivative histories of the pulsar and confirmed the correlation between X-ray flux and pulse frequency derivative presented by Baykal, Stark and Swank (2002). We constructed the power spectra for the fluctuations of pulse frequency derivatives and found that the power law index of the noise spectra is 2.13 ±\pm 0.6. The power law index is consistent with random walk in pulse frequency derivative and is the steepest among the HMXRBs. X-ray spectra analysis confirmed the inverse correlation trend between power-law index and X-ray flux found by Baykal, Stark and Swank (2002).Comment: 23 pages, 7 figures, revised version accepted for publication in MNRA

    Pressure and linear heat capacity in the superconducting state of thoriated UBe13

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    Even well below Tc, the heavy-fermion superconductor (U,Th)Be13 has a large linear term in its specific heat. We show that under uniaxial pressure, the linear heat capacity increases in magnitude by more than a factor of two. The change is reversible and suggests that the linear term is an intrinsic property of the material. In addition, we find no evidence of hysteresis or of latent heat in the low-temperature and low-pressure portion of the phase diagram, showing that all transitions in this region are second order.Comment: 5 pages, 4 figure

    Spin dynamics in a structurally ordered non-Fermi liquid compound: YbRh_2Si_2

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    Muon spin relaxation (muSR) experiments have been carried out at low temperatures in the non-Fermi-liquid heavy-fermion compound YbRh_2Si_2. The longitudinal-field muSR relaxation function is exponential, indicative that the dynamic spin fluctuations are homogeneous. The relaxation rate 1/T_1 varies with applied field as H^{-y}, y = 1.0 \pm 0.1, which implies a scaling law of the form \chi''(\omega) \propto \omega^{-y} f(\omega/T), \lim_{x\to0} f(x) = x for the dynamic spin susceptibility.Comment: 5 pages, 2 figures. To be published in proceedings of musr2002 (Physica B

    PHENIX Highlights

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    Recent highlights of measurements by the PHENIX experiment at RHIC are presented.Comment: 8 pages, 9 figures. Talk at Quark Matter 200
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