328 research outputs found

    Sexual Harassment in Higher Education: Institutional Liability

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    Sexual harassment is a pervasive social problem affecting institutions of higher education

    Representasi Tokoh Lisa dalam Novel Bunda Lisa Karya Jombang Santani Khairen: Kajian Psikologi Wanita (Delegation Of Lisa In Novel Bunda Lisa Written By Jombang Santani Khairen: Examined By Woman Psychology)

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    This article tells about the delegation of a woman in family and society. The delegation of a woman is interesting to be study because a women has a big role in family life also in society. Woman also needs to receive the prize of woman right, woman emancipation, and woman construction dealing with woman psychology. The novel entitled Bunda Lisa, written by Jombang Santani Khairen mention many aspects of woman psychology as a wife, as a mother and a teacher, as well as a housewife. That problem can be known through the structural theory includes theme, cast, character, conflict and background. The result analysis of structural theory and woman psychology examination in novel Bunda Lisa draws that the novel is appropriate along the theory used, those are structural theory and woman psychology examination

    Finite Size Effects for the Ising Model Coupled to 2-D Random Surfaces

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    Finite size effects for the Ising Model coupled to two dimensional random surfaces are studied by exploiting the exact results from the 2-matrix models. The fixed area partition function is numerically calculated with arbitrary precision by developing an efficient algorithm for recursively solving the quintic equations so encountered. An analytic method for studying finite size effects is developed based on the behaviour of the free energy near its singular points. The generic form of finite size corrections so obtained are seen to be quite different from the phenomenological parameterisations used in the literature. The method of singularities is also applied to study the magnetic susceptibility. A brief discussion is presented on the implications of these results to the problem of a reliable determination of string susceptibility from numerical simulations.Comment: 18 pages, 3 figure

    Composite fermion wave functions as conformal field theory correlators

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    It is known that a subset of fractional quantum Hall wave functions has been expressed as conformal field theory (CFT) correlators, notably the Laughlin wave function at filling factor ν=1/m\nu=1/m (mm odd) and its quasiholes, and the Pfaffian wave function at ν=1/2\nu=1/2 and its quasiholes. We develop a general scheme for constructing composite-fermion (CF) wave functions from conformal field theory. Quasiparticles at ν=1/m\nu=1/m are created by inserting anyonic vertex operators, P1m(z)P_{\frac{1}{m}}(z), that replace a subset of the electron operators in the correlator. The one-quasiparticle wave function is identical to the corresponding CF wave function, and the two-quasiparticle wave function has correct fractional charge and statistics and is numerically almost identical to the corresponding CF wave function. We further show how to exactly represent the CF wavefunctions in the Jain series ν=s/(2sp+1)\nu = s/(2sp+1) as the CFT correlators of a new type of fermionic vertex operators, Vp,n(z)V_{p,n}(z), constructed from nn free compactified bosons; these operators provide the CFT representation of composite fermions carrying 2p2p flux quanta in the nthn^{\rm th} CF Landau level. We also construct the corresponding quasiparticle- and quasihole operators and argue that they have the expected fractional charge and statistics. For filling fractions 2/5 and 3/7 we show that the chiral CFTs that describe the bulk wave functions are identical to those given by Wen's general classification of quantum Hall states in terms of KK-matrices and ll- and tt-vectors, and we propose that to be generally true. Our results suggest a general procedure for constructing quasiparticle wave functions for other fractional Hall states, as well as for constructing ground states at filling fractions not contained in the principal Jain series.Comment: 26 pages, 3 figure

    Finding the Pion in the Chiral Random Matrix Vacuum

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    The existence of a Goldstone boson is demonstrated in chiral random matrix theory. After determining the effective coupling and calculating the scalar and pseudoscalar propagators, a random phase approximation summation reveals the massless pion and massive sigma modes expected whenever chiral symmetry is spontaneously broken.Comment: 3 pages, 1 figure, revte

    D-XY Critical Behavior in Cuprate Superconductors

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    We outline the universal and finite temperature critical properties of the 3D-XY model, extended to anisotropic extreme type-II superconductors, as well as the universal quantum critical properties in 2D. On this basis we review: (i) the mounting evidence for 3D-XY behavior in optimally doped cuprate superconductors and the 3D to 2D crossover in the underdoped regime; (ii) the finite size limitations imposed by inhomogeneities; (iii) the experimental evidence for a 2D-XY quantum critical point in the underdoped limit, where the superconductor to insulator transition occurs; (iv) the emerging implications and constraints for microscopic models.Comment: 5 pages, 6 figure

    Solitons and Quasielectrons in the Quantum Hall Matrix Model

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    We show how to incorporate fractionally charged quasielectrons in the finite quantum Hall matrix model.The quasielectrons emerge as combinations of BPS solitons and quasiholes in a finite matrix version of the noncommutative ϕ4\phi^4 theory coupled to a noncommutative Chern-Simons gauge field. We also discuss how to properly define the charge density in the classical matrix model, and calculate density profiles for droplets, quasiholes and quasielectrons.Comment: 15 pages, 9 figure

    Statistical Properties of Cross-Correlation in the Korean Stock Market

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    We investigate the statistical properties of the correlation matrix between individual stocks traded in the Korean stock market using the random matrix theory (RMT) and observe how these affect the portfolio weights in the Markowitz portfolio theory. We find that the distribution of the correlation matrix is positively skewed and changes over time. We find that the eigenvalue distribution of original correlation matrix deviates from the eigenvalues predicted by the RMT, and the largest eigenvalue is 52 times larger than the maximum value among the eigenvalues predicted by the RMT. The β473\beta_{473} coefficient, which reflect the largest eigenvalue property, is 0.8, while one of the eigenvalues in the RMT is approximately zero. Notably, we show that the entropy function E(σ)E(\sigma) with the portfolio risk σ\sigma for the original and filtered correlation matrices are consistent with a power-law function, E(σ)σγE(\sigma) \sim \sigma^{-\gamma}, with the exponent γ2.92\gamma \sim 2.92 and those for Asian currency crisis decreases significantly

    The optical spectrum of a large isolated polycyclic aromatic hydrocarbon: hexa-peri-hexabenzocoronene, C42H18

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    The first optical spectrum of an isolated polycyclic aromatic hydrocarbon large enough to survive the photophysical conditions of the interstellar medium is reported. Vibronic bands of the first electronic transition of the all benzenoid polycyclic aromatic hydrocarbon hexa-peri-hexabenzocoronene were observed in the 4080-4530 Angstrom range by resonant 2-color 2-photon ionization spectroscopy. The strongest feature at 4264 Angstrom is estimated to have an oscillator strength of f=1.4x10^-3, placing an upper limit on the interstellar abundance of this polycyclic aromatic hydrocarbon at 4x10^12 cm^-2, accounting for a maximum of ~0.02% of interstellar carbon. This study opens up the possibility to rigorously test neutral polycyclic aromatic hydrocarbons as carriers of the diffuse interstellar bands in the near future.Comment: 9 pages, 1 figure. Fixed a typo on the frequency of the 'b' ban

    On the stationary points of the TAP free energy

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    In the context of the p-spin spherical model, we introduce a method for the computation of the number of stationary points of any nature (minima, saddles, etc.) of the TAP free energy. In doing this we clarify the ambiguities related to the approximations usually adopted in the standard calculations of the number of states in mean field spin glass models.Comment: 11 pages, 1 Postscript figure, plain Te
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