2,413 research outputs found

    Is High Productivity Growth Compatible With Employment Growth?

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    CRS_October_2004_Is_High_Productivity_Growth_Compatible_with_Employment_Growth.pdf: 795 downloads, before Oct. 1, 2020

    A Changing Natural Rate of Unemployment: Policy Issues

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    CRS_March_2004_Changing_Natural_Rate_of_Unemployment.pdf: 4154 downloads, before Oct. 1, 2020

    Thick Target Models of Impulsive Chromospheric Flares

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    The most impulsive flares show large amplitude intensity variations in times of order 10 s. An attempt is made to reproduce the properties of these events with a model in which the heating of a static chromosphere by a nonthermal electron beam is balanced by thermal radiation cooling. The computed results suggest that the assumed static equilibrium may be achieved in some parts of the flares, and indicate improvements necessary for more accurate models of this type of flare

    Observations of large-scale motions of the Sun

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    Recent observations of large-scale mass motions on the Sun are discussed. The principal large-scale velocity flows are convection, rotation, meridional flow, and torsional and radial oscillations

    Coordinated observations in support of the solar maximum mission

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    The in-orbit repair of the Solar Maximum Mission satellite has provided an opportunity to continue observations of the Sun's outer corona, transition region, and bolometric flux through the decay phase and minimum of the solar cycle. The coordinated observation of the solar photosphere, chromosphere, and low corona from the ground is a necessary companion to understanding the full range of phenomena seen over the solar cycle by the spacecraft instruments. A program of such observations has been undertaken at the Mees Solar Observatory, and has established a broad database for the analysis of the solar atmosphere and interior
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