4,265 research outputs found

    A relational model of therapists’ experience of affect regulation in psychological therapy with female sex addiction

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    This study investigated how therapists work with female sex addicts on affect regulation from a relational perspective in psychotherapy. I used a grounded theory approach, embedded in a social constructionist epistemology, and implemented a relativist constructionist methodology (Bryant & Charmaz, 2010). A total of twelve experienced psychotherapists and psychologists who worked in the sex addiction field participated in conversational, semi-structured interviews. Analysis revealed seventeen central properties, which organized five reciprocal, interactive categories. Four of these – namely, Forming Relationship, The Therapist’s Edge, Managing Risk and Safe Surprises and Finding a Shared Frequency – are cohered by the fifth category, The Multiversal Space. Findings demonstrated affect regulation as a therapeutic method with female sex addicts to be inextricably bound up with the therapist’s subjective response as well as their capacity for conceptualization, and theory of mind. Central to the work is an attendance by the therapist to both the implicit unconscious and somatic communication and explicit, cognitive and narrative aspects, as these were shown to influence the quality of relationship and the therapeutic action of change (Boston Change Process Study Group, 2010). The contribution of this research added to that of the small number of empirical studies considering female sex addiction. The originality of the study concerned the conceptualization of psychological therapy with female sex addicts as a two-person endeavour, thus positioning it in the field of relational and counselling psychology

    Avionics architecture studies for the entry research vehicle

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    This report is the culmination of a year-long investigation of the avionics architecture for NASA's Entry Research Vehicle (ERV). The Entry Research Vehicle is conceived to be an unmanned, autonomous spacecraft to be deployed from the Shuttle. It will perform various aerodynamic and propulsive maneuvers in orbit and land at Edwards AFB after a 5 to 10 hour mission. The design and analysis of the vehicle's avionics architecture are detailed here. The architecture consists of a central triply redundant ultra-reliable fault tolerant processor attached to three replicated and distributed MIL-STD-1553 buses for input and output. The reliability analysis is detailed here. The architecture was found to be sufficiently reliable for the ERV mission plan

    Analysis of Doppler radar windshear data

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    The objective of this analysis is to process Lincoln Laboratory Doppler radar data obtained during FLOWS testing at Huntsville, Alabama, in the summer of 1986, to characterize windshear events. The processing includes plotting velocity and F-factor profiles, histogram analysis to summarize statistics, and correlation analysis to demonstrate any correlation between different data fields

    HARM: A Numerical Scheme for General Relativistic Magnetohydrodynamics

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    We describe a conservative, shock-capturing scheme for evolving the equations of general relativistic magnetohydrodynamics. The fluxes are calculated using the Harten, Lax, and van Leer scheme. A variant of constrained transport, proposed earlier by T\'oth, is used to maintain a divergence free magnetic field. Only the covariant form of the metric in a coordinate basis is required to specify the geometry. We describe code performance on a full suite of test problems in both special and general relativity. On smooth flows we show that it converges at second order. We conclude by showing some results from the evolution of a magnetized torus near a rotating black hole.Comment: 38 pages, 18 figures, submitted to Ap

    Baryon Loading of AGN Jets Mediated by Neutrons

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    Plasmas of geometrically thick, black hole (BH) accretion flows in active galactic nuclei (AGNs) are generally collisionless for protons, and involve magnetic field turbulence. Under such conditions a fraction of protons can be accelerated stochastically and create relativistic neutrons via nuclear collisions. These neutrons can freely escape from the accretion flow and decay into protons in dilute polar region above the rotating BH to form relativistic jets. We calculate geometric efficiencies of the neutron energy and mass injections into the polar region, and show that this process can deposit luminosity as high as L_j ~ 2e-3 dot{M} c^2 and mass loading dot{M}_j ~ 6e-4 dot{M} for the case of the BH mass M ~ 1e8 M_sun, where dot{M} is mass accretion rate. The terminal Lorentz factors of the jets are Gamma ~ 3, and they may explain the AGN jets having low luminosities. For higher luminosity jets, which can be produced by additional energy inputs such as Poynting flux, the neutron decay still can be a dominant mass loading process, leading to e.g., Gamma ~ 50 for L_{j,tot} ~ 3e-2 dot{M}c^2.Comment: 7 pages, 6 figures; accepted for publication in Ap
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