96,967 research outputs found

    Rough Justice: Lynching and American Society, 1874-1947

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    Review of: Rough Justice: Lynching and American Society, 1874-1947. Pfeifer, Michael J

    Rough Justice: Lynching and American Society, 1874-1947

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    Review of: Rough Justice: Lynching and American Society, 1874-1947. Pfeifer, Michael J

    The Roots of Rough Justice: Origins of American Lynching

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    Seeking the Roots of Violence This slender volume – a prequel to Pfeifer’s Rough Justice: Lynching and American Society, 1874-1947 – engages with important historical questions and issues: connections between lynching and older Anglo-American traditions of popular justice and, pa...

    Graduate Wind Conducting Recital

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    Program notes include: Festive Overture, Op. 96 (1947) - Dmitri Shostakovich (1906-1975); trans. Donald Hunsberger Incidental Suite (1966) - Claude T. Smith (1932-1987) Elsa’s Procession to the Cathedral (1850) - Richard Wagner (1813-1883); arr. John R. Bourgeois Chorale and Shaker Dance (1972) - John Zdechlik (1937-2020) First Suite in Eb for Military Band, Op. 28 No. 1 (1909) - Gustav Holst (1874-1934) Alleluia! Laudamus Te (1973) - Alfred Reed (1921-2005

    The new Sunspot Number: assembling all corrections

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    The Sunspot Number, created by R.Wolf in 1849, provides a direct long-term record of solar activity from 1700 to the present. In spite of its central role in multiple studies of the solar dynamo and of the past Sun-Earth relations, it was never submitted to a global critical revision. However, various discrepancies with other solar indices recently motivated a full re-calibration of this series. Based on various diagnostics and corrections established in the framework of several Sunspot Number Workshops and described in Clette et al. 2014, we assembled all corrections in order to produce a new standard version of this reference time series. In this paper, we explain the three main corrections and the criteria used to choose a final optimal version of each correction factor or function, given the available information and published analyses. We then discuss the good agreement obtained with the Group sunspot Number derived from a recent reconstruction. Among the implications emerging from this re-calibrated series, we also discuss the absence of a rising secular trend in the newly-determined solar cycle amplitudes, also in relation with contradictory indications derived from cosmogenic radionuclides. As conclusion, we introduce the new version management scheme now implemented at the World Data Center - SILSO, which reflects a major conceptual transition: beyond the re-scaled numbers, this first revision of the Sunspot Number also transforms the former locked data archive into a living observational series open to future improvements

    Does War Excuse the Payment of Life Insurance Premiums?

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    A historical review of the shad fisheries of North America

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    A review of the relative productivity and value of the shad fisheries of North America as reflected in recorded commercial catches. A review of reasons for the decline that are biological and socioeconomic. Factors that have been held responsible are: pollution; destruction or impairment of spawning and nursery areas; overfishing; hydroelectric and canal dams; natural fluctuations in abundance. Natural catastrophes, parasites, and predators are not considered important in causing the decrease in commercial production. Attempts to rehabilitate the fisheries by various means of stocking artificially-reared fry and pond-reared fingerling shad, appear to have failed in every instance. Introduction of shad fry on the Pacific Coast has resulted in a major fishery. The most significant program is a controlled catch management plan, operating at this time [1953] only in Maryland

    Solar differential rotation in the period 1964 - 2016 determined by the Kanzelh\"ohe data set

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    The main aim of this work is to determine the solar differential rotation by tracing sunspot groups during the period 1964-2016, using the Kanzelh\"ohe Observatory for Solar and Environmental Research (KSO) sunspot drawings and white light images. Two procedures for the determination of the heliographic positions were applied: an interactive procedure on the KSO sunspot drawings (1964 - 2008, solar cycles nos. 20 - 23) and an automatic procedure on the KSO white light images (2009 - 2016, solar cycle no. 24). For the determination of the synodic angular rotation velocities two different methods have been used: a daily shift (DS) method and a robust linear least-squares fit (rLSQ) method. Afterwards, the rotation velocities had to be converted from synodic to sidereal, which were then used in the least-squares fitting for the solar differential rotation law. For the test data from 2014, we found the rLSQ method for calculating rotational velocities to be more reliable than the DS method. The best fit solar differential rotation profile for the whole time period is ω(b)\omega(b) = (14.47 ±\pm 0.01) - (2.66 ±\pm 0.10) sin2b\sin^2b (deg/day) for the DS method and ω(b)\omega(b) = (14.50 ±\pm 0.01) - (2.87 ±\pm 0.12) sin2b\sin^2b (deg/day) for the rLSQ method. A barely noticeable north - south asymmetry is observed for the whole time period 1964 - 2016 in the present paper. Rotation profiles, using different data sets (e.g. Debrecen Photoheliographic Data, Greenwich Photoheliographic Results), presented by other authors for the same time periods and the same tracer types, are in good agreement with our results. Therefore, the KSO data set is suitable for the investigation of the long-term variabilities in the solar rotation profile
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