1,376 research outputs found

    Poems / by Bassett Dickson.

    No full text
    Illustration is a photograph.; Electronic reproduction. Canberra, A.C.T. : National Library of Australia, 2009.; Library's N copy inscribed by author

    Andrew Dickson White papers microfilm reel 149, 1882-1917

    No full text
    Digitized microfilm of correspondence and papers from the Andrew Dickson White collection.Segment 1: Volume one of the Autobiography of Andrew Dickson White, New York, The Century Co., 1917; copyright, 1904, 1905 by The Century Co., published March, 1905; 601 pages... Segment 2: Volume two of the Autobiography of Andrew Dickson White, including a list of publications by the author and an index, 606 pages ...Segment 3: This portion of the reel contains three letter registers kept by a succession of White's secretaries. The first volume lists letters sent from January 2, 1882 through June 29, 1883. Except for a few pages at the beginning and end, the right-hand pages record the letters of 1882, and the left·hand pages those of 1883. The second volume lists letters sent throughout 1884, and the third records letters sent from January 1, 1885 through August 14, 1885

    On the exponents of APN power functions and Sidon sets, SUM-free sets, and Dickson Polynomials

    No full text
    We derive necessary conditions related to the notions, in additive combinatorics, of Sidon sets and sum-free sets, on those exponents d ∈ Z/(2n − 1)Z, which are such that F (x) = xd is an APN function over F2n (which is an important cryptographic property). We study to what extent these new conditions may speed up the search for new APN exponents d. We summarize all the necessary conditions that an exponent must satisfy for having a chance of being an APN, including the new conditions presented in this work. Next, we give results up to n = 48, providing the number of exponents satisfying all the conditions for a function to be APN. We also show a new connection between APN exponents and Dickson polynomials: F (x) = xd is APN if and only if the reciprocal polynomial of the Dickson polynomial of index d is an injective function from {y ∈ F∗2n; trn(y) = 0} to F2n \ {1}. This also leads to a new and simple connection between Reversed Dickson polynomials and reciprocals of Dickson polynomials in characteristic 2 (which generalizes to every characteristic thanks to a small modification): the squared Reversed Dickson polynomial of some index and the reciprocal of the Dickson polynomial of the same index are equal.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Cyber Securit

    Effect of processing conditions on wood and glass fiber length attrition during twin screw composite compounding

    No full text
    In this study, we compare the effect of twin-screw extrusion processing on the attrition of wood fibers (WFs) with glass fiber. The effects of process variables and screw design on fiber length were investigated by performing a range of dead-stop experiments where the extruder was stopped, opened-up, and compound removed from the screw elements. Fibers, chemically extracted from the polypropylene matrix, were analyzed for length and width using a commercial fiber analyzer. It was found that WF length attrition and composite properties were less affected by screw design and twin-screw processing conditions (feed rate and screw speed) than glass fiber. Length weighted fiber length and X50 length (a measure used in particle size analysis) were equally correlated with process conditions and composite performance for both fiber types

    Dickson and Flora Reeder

    No full text
    Dickson and Flora Reeder will play in Jean Anouilh\u27s Episode in the Life of an Author for the Fiesta de Marza of Women of the West in Edrington Scott Theater. They are shown seated on a couch, she is holding a telephone, and Dickson is smoking and holding a book on lap. Fort Worth Star-Telegram Morning edition February 22, 1968.https://mavmatrix.uta.edu/specialcollections_startelegram1960s/4290/thumbnail.jp

    Illustrated descriptions of juvenile stages of an Aloeides species close to margaretae Tite & Dickson, including comparisons with both A. apicalis Tite & Dickson and A. depicta Tite & Dickson

    No full text
    The butterfly in this study is provisionally treated as Aloeides margaretae and represents observations and material from Moorreesburg, Lambert’s Bay and Graafwater, in the Western Cape province. The juvenile stages illustrated herein were mostly obtained from Graafwater; although they are consistent with observations at the other localities. These juvenile stages are compared with Gowan Clark’s illustrations of A. depicta in Tite & Dickson (1968). Some small differences in markings of the larval stages were noted, that together with a difference in the shape of the hind wing, lend some support for their separate status. A comparison is also made here between the adult stages of A. margaretae and A. apicalis. This reveals little significant or consistent difference between them in either wing shape or markings, inferring that their taxonomic relationship needs to be reviewed in a molecular study. It is surprising that Tite & Dickson did not attempt to define or question the relationship between them seeing that both taxa were described by them in the same publication and that according to their designated paratypes, their distributions overlapped. It is unlikely that species of host plant or host ant can throw any further light on their relationship as there is a dearth of such data in most descriptions of myrmecophilous juveniles, especially in the earlier publications, prompting a plea herein for lepidopterists to add observed host information to the usual collecting data and to collect samples of the host ants wherever possible

    Emulation on the Shakespearean Stage

    No full text
    This review considers Emulation on the Shakespearean Stage by Vernon Guy Dickson

    Review of "The Works of Henry Vaughan: Volume I. Introduction and Texts 16461652; Volume II. Texts 1654-1678, Letters, & Medical Marginalia; Volume III. Commentaries and Bibliography"

    No full text
    The Works of Henry Vaughan: Volume I. Introduction and Texts 16461652; Volume II. Texts 1654-1678, Letters, & Medical Marginalia; Volume III. Commentaries and Bibliography. Edited by Donald R. Dickson, Alan Rudrum and Robert Wilcher. Oxford: Oxford University Press, 2018. cii + 1444 pp. $350. Review by Jonathan Nauman, Vaughan Association

    Abolala Soudavar. Reassessing Early Safavid Art and History. Thirty-Five Years after Dickson & Welch 1981

    No full text
    The volume consists of seven individual studies which are bound together by their strong reliance on The Houghton Shahnameh (Cambridge, Mass., 1981) by Martin Bernard Dickson and Stuart Cary Welch and the deference of the author to this two-volume work. While the author engages multiple problems in the respective chapters, his overarching concern is for “Dickson & Welch 1981”: a seminal volume which Soudavar believes to have been unjustly marginalised, ignored, and/or criticised by subsequent..
    corecore