362 research outputs found

    “We face rape. We face all things”: Understandings of gender-based violence amongst female students at a South African university

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    This study explores how female residence students at a South African university understand and experience gender-based violence. This article examines how women’s identities and social interactions are affected by the presence of gender-based violence in their communities, and specifically the issue of violence in higher education institutions. Social constructionist theory framed this study as it focuses on how these women’s ‘talk’ constructed their understanding of gender-based violence. Unstructured interviews were conducted with 12 female residence students and discourse analysis was used to analyse the interview material. Findings revealed that the fear of becoming a victim of gender-based violence serves to constrict the daily activities of these women. This research maps these ongoing discourses of fear which are present in all aspects of women’s lives. It provides a formal articulation of women’s experiences that are significant but frequently marginalised and normalised, showing the pervasive effects of fear of gender-based violence on identity and social life. The study contributes towards a growing body of knowledge surrounding the impact of gender-based violence at higher education institutions and works towards protecting students.Keywords: Gender-based violence; South Africa; women; students; higher education; fea

    A Pinned Polymer Model of Posture Control

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    A phenomenological model of human posture control is posited. The dynamics are modelled as an elastically pinned polymer under the influence of noise. The model accurately reproduces the two-point correlation functions of experimental posture data and makes predictions for the response function of the postural control system. The physiological and clinical significance of the model is discussed.Comment: uuencoded post script file, 17 pages with 3 figure

    Diffusion-limited reaction for the one-dimensional trap system

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    We have previously discussed the one-dimensional multitrap system of finite range and found the somewhat unexpected result that the larger is the number of imperfect traps the higher is the transmission through them. We discuss in this work the effect of a small number of such traps arrayed along either a constant or a variable finite spatial section. It is shown that under specific conditions, to be described in the following, the remarked high transmission may be obtained for this case also. Thus, compared to the theoretical large number of traps case these results may be experimentally applied to real phenomenaComment: 18 pages, 8 PS Figures; 3 former figures were removed, a new section added and the representation is improve

    Analyzing Power Measurements for 13-C(p,p') at 120 MeV

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    This work was supported by the National Science Foundation Grant NSF PHY 81-14339 and by Indiana Universit

    135 MeV Proton Scattering from 13-C

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    This work was supported by the National Science Foundation Grant NSF PHY 78-22774 A02 & A03 and by Indiana Universit

    Influence of auto-organization and fluctuation effects on the kinetics of a monomer-monomer catalytic scheme

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    We study analytically kinetics of an elementary bimolecular reaction scheme of the Langmuir-Hinshelwood type taking place on a d-dimensional catalytic substrate. We propose a general approach which takes into account explicitly the influence of spatial correlations on the time evolution of particles mean densities and allows for the analytical analysis. In terms of this approach we recover some of known results concerning the time evolution of particles mean densities and establish several new ones.Comment: Latex, 25 pages, one figure, submitted to J. Chem. Phy

    Lattice theory of trapping reactions with mobile species

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    We present a stochastic lattice theory describing the kinetic behavior of trapping reactions A+B→BA + B \to B, in which both the AA and BB particles perform an independent stochastic motion on a regular hypercubic lattice. Upon an encounter of an AA particle with any of the BB particles, AA is annihilated with a finite probability; finite reaction rate is taken into account by introducing a set of two-state random variables - "gates", imposed on each BB particle, such that an open (closed) gate corresponds to a reactive (passive) state. We evaluate here a formal expression describing the time evolution of the AA particle survival probability, which generalizes our previous results. We prove that for quite a general class of random motion of the species involved in the reaction process, for infinite or finite number of traps, and for any time tt, the AA particle survival probability is always larger in case when AA stays immobile, than in situations when it moves.Comment: 12 pages, appearing in PR

    Study of Three-Particle-One-Hole States in 14-C with the 11-B(a,p)14-C Reaction at 120 MeV

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    This work was supported by the National Science Foundation Grant NSF PHY 81-14339 and by Indiana Universit

    Proton structure function at small Q^2

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    A fit is made to the data for the proton structure function up to Q^2=10 GeV^2, including the real gamma p total cross-section. It is economical and simple, and its form is motivated by physical principles. It is extrapolated down to very small values of x. Data for the ratio (nu W_2^n/nu W_2^p) are also fitted. A FORTRAN program for the fit to (nu W_2^p) is available by email on request Figure 5 from the original version has been deleted.Comment: 10 pages plus 9 figure

    Energy Relaxation in Nonlinear One-Dimensional Lattices

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    We study energy relaxation in thermalized one-dimensional nonlinear arrays of the Fermi-Pasta-Ulam type. The ends of the thermalized systems are placed in contact with a zero-temperature reservoir via damping forces. Harmonic arrays relax by sequential phonon decay into the cold reservoir, the lower frequency modes relaxing first. The relaxation pathway for purely anharmonic arrays involves the degradation of higher-energy nonlinear modes into lower energy ones. The lowest energy modes are absorbed by the cold reservoir, but a small amount of energy is persistently left behind in the array in the form of almost stationary low-frequency localized modes. Arrays with interactions that contain both a harmonic and an anharmonic contribution exhibit behavior that involves the interplay of phonon modes and breather modes. At long times relaxation is extremely slow due to the spontaneous appearance and persistence of energetic high-frequency stationary breathers. Breather behavior is further ascertained by explicitly injecting a localized excitation into the thermalized array and observing the relaxation behavior
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