90 research outputs found

    Airborne Lidar measurements of the atmospheric pressure profile with tunable Alexandrite lasers

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    The first remote measurements of the atmospheric pressure profile made from an airborne platform are described. The measurements utilize a differential absorption lidar and tunable solid state Alexandrite lasers. The pressure measurement technique uses a high resolution oxygen A band where the absorption is highly pressure sensitive due to collision broadening. Absorption troughs and regions of minimum absorption were used between pairs of stongly absorption lines for these measurements. The trough technique allows the measurement to be greatly desensitized to the effects of laser frequency instabilities. The lidar system was set up to measure pressure with the on-line laser tuned to the absorption trough at 13147.3/cm and with the reference laser tuned to a nonabsorbing frequency near 13170.0/cm. The lidar signal returns were sampled with a 200 range gate (30 vertical resoltion) and averaged over 100 shots

    Real-time atmospheric absorption spectra for in-flight tuning of an airborne dial system

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    Real-time measurements of atmospheric absorption spectra are displayed and used to precisely calibrate and fix the frequency of an Alexandrite laser to specific oxygen absorption features for airborne Differential Absorption Lidar (DIAL) measurements of atmospheric pressure and temperature. The DIAL system used contains two narrowband tunable Alexandrite lasers: one is electronically scanned to tune to oxygen absorption features for on-line signals while the second is used to obtain off-line (nonabsorbed) atmospheric return signals. The lidar operator may select the number of shots to be averaged, the altitude, and altitude interval over which the signals are averaged using single key stroke commands. The operator also determines exactly which oxygen absorption lines are scanned by comparing the line spacings and relative strengths with known line parameters, thus calibrating the laser wavelength readout. The system was used successfully to measure the atmospheric pressure profile on the first flights of this lidar, November 20, and December 9, 1985, aboard the NASA Wallops Electra aircraft

    ENIGMA-anxiety working group : Rationale for and organization of large-scale neuroimaging studies of anxiety disorders

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    Altres ajuts: Anxiety Disorders Research Network European College of Neuropsychopharmacology; Claude Leon Postdoctoral Fellowship; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation, 44541416-TRR58); EU7th Frame Work Marie Curie Actions International Staff Exchange Scheme grant 'European and South African Research Network in Anxiety Disorders' (EUSARNAD); Geestkracht programme of the Netherlands Organization for Health Research and Development (ZonMw, 10-000-1002); Intramural Research Training Award (IRTA) program within the National Institute of Mental Health under the Intramural Research Program (NIMH-IRP, MH002781); National Institute of Mental Health under the Intramural Research Program (NIMH-IRP, ZIA-MH-002782); SA Medical Research Council; U.S. National Institutes of Health grants (P01 AG026572, P01 AG055367, P41 EB015922, R01 AG060610, R56 AG058854, RF1 AG051710, U54 EB020403).Anxiety disorders are highly prevalent and disabling but seem particularly tractable to investigation with translational neuroscience methodologies. Neuroimaging has informed our understanding of the neurobiology of anxiety disorders, but research has been limited by small sample sizes and low statistical power, as well as heterogenous imaging methodology. The ENIGMA-Anxiety Working Group has brought together researchers from around the world, in a harmonized and coordinated effort to address these challenges and generate more robust and reproducible findings. This paper elaborates on the concepts and methods informing the work of the working group to date, and describes the initial approach of the four subgroups studying generalized anxiety disorder, panic disorder, social anxiety disorder, and specific phobia. At present, the ENIGMA-Anxiety database contains information about more than 100 unique samples, from 16 countries and 59 institutes. Future directions include examining additional imaging modalities, integrating imaging and genetic data, and collaborating with other ENIGMA working groups. The ENIGMA consortium creates synergy at the intersection of global mental health and clinical neuroscience, and the ENIGMA-Anxiety Working Group extends the promise of this approach to neuroimaging research on anxiety disorders

    Susan Schelle : Recent Work

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    Milrod contextualizes Schelle's work with a discussion of the ideas of the "expanded field" in sculpture and of the idea of place and experience. Biographical notes. 8 bibl. ref

    Ron Shuebrook : Recent Work, 1980-1982

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    Painter Shuebrook's exploration of abstraction and black and white contrast is noted. Biographical notes

    Andrew Bodor

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    Milrod describes the development of Bodor's work from initial studies of the gallery space to the installation of his site-specific "drawings" using cord, and notes his continuing investigation of space and site

    Six from Halifax

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    Milrod notes the popularity of Halifax artists, citing several Canadian exhibitions from 1980. Biographical notes on the six participating artists

    Mentalizing in interpersonal psychotherapy

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    Mentalization -- how we understand our own minds and those of others -- is an attachment-based normative cognitive and affective capacity central to mentalization-based therapies. Mentalization seems related to aspects of and may hold important potential implications for interpersonal psychotherapy (IPT). The IPT manual does not explicitly describe targeting improvement in mentalization but IPT may employ it as an underlying process. Recent mentalization theory emphasizes the applicability of a mentalization model to many if not all types of psychotherapy, and it may have particular value for affect-focused and socially focused psychotherapies like IPT despite its differences in focus and diagnostic targets from mentalization-based treatments. This article reviews the overlap of these approaches and suggests the potential that mentalization might mediate IPT outcome
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