127,357 research outputs found

    Letter to public by Charles B. Calvert, 1852

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    Letter sent out to the public by Charles B. Calvert, founder of Maryland Agricultural College, 1852

    Fordham Letter from Judge Calvert Magruder

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    Letter from Calvert Magruder to Jefferson B. Fordham re: Conflict of Interest Committee

    Corrigendum to “A generic multi-level framework for microscopic traffic simulation with automated vehicles in mixed traffic” [Transport. Res. Part C: Emerg. Technol. 110 (2020) 291–311] (Transportation Research Part C (2020) 110 (291–311), (S0968090X19304322), (10.1016/j.trc.2019.11.019))

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    The authors regret that a contributing author was missing from the list of authors. The complete list of authors should be: “S.C. Calvert, B. van Arem, & J. W. C. van Lint”. All are with Delft University of Technology, Department of Transport & Planning, The Netherlands updated as above. The authors would like to apologise for any inconvenience caused.Transport and Plannin

    Slave account book of Charles Benedict Calvert, Prince George's County, Maryland, circa 1830-1860

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    The slave account book of Charles Benedict Calvert of Prince George's County, Maryland, lists the name, age, value, and sale price of the each of the 330 slaves at his several local holdings, circa 1830-1860. Front cover reads: "Chas. B. Calvert | of | Bellefonte | Prince Georges County | [Maryland].

    1959-61 -- Correspondence, NFIP -- letter, 1959-10-07

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    Letter from Calvert, Josephine to Sabin, Albert B. dated 1959-10-07.Sabin Collection Fair Use Policy</a

    B. Young in front of Calvert liquor display

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    B. Young in front of Calvert liquor displayhttps://mavmatrix.uta.edu/specialcollections_wdsmithphotography/8408/thumbnail.jp

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Iron bridge near Coalbrookdale

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    'IRON BRIDGE near COALBROOK-DALE. Sam. Ireland del: F. Calvert, Lithog. London: Pub: by G. & W. B. Whittaker. Ave Maria Lane'

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Hetaerina infecta Calvert, 1901 1901

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    Original combination: Hetaerina infecta Calvert, 1901 Status: available species-group name; valid species Current combination: Hetaerina infecta Calvert, 1901 Type material. One male, one female; collecting locality: Atoyac, Veracruz, Mexico; collectors: Schumann and Herbert Huntingdon Smith Verbatim label data male 4a9513: (1) »Atoyac, / Vera Cruz. / Schumann.« [printed]; (2) »Co-« [handwritten] / » Typus « [printed]; (3) » HETAERINA « [printed] / »&male;« [handwritten] / » INFECTA CALV.« [printed] / »cotype« [handwritten] / »P. P. Calvert det.« [printed], » 1900 « [handwritten]; (4) »B. C. A. Neur., p.« [printed], » 39 « [handwritten]; (5) »http://coll.mfn-berlin. de/u/ 4a9513 « [printed]. Verbatim label data female 4a950 b: (1) [a piece of abdomen adheres to the label]; (2) »Atoyac, / Vera Cruz. / May. H. H. S.« [printed]; (2) »Co-« [handwritten] / » Typus « [printed]; (3) » HETAERINA « [printed] / »&female;« [handwritten] / » INFECTA CALV.« [printed] / »cotype« [handwritten] / »P. P. Calvert det. « [printed], » 1900 « [handwritten]; (4) »B. C. A. Neur., p. « [printed], » 39 « [handwritten]; (5) »http://coll.mfn-berlin.de/u/ 4a950 b« [printed]. Notes. Calvert (1901–1908: 39) wrote: »Hab. Mexico, Presidio in Vera Cruz (Barrett, coll. P.P.C.: 1 &female;), Atoyac (H. H. Smith, Schumann: 24 &male;, 22 &female;);? Guatemala, Panima in Vera Paz (Champion: 2 &female; of large size, one having hind wing 36 mm. long, may belong here).« and described the two sexes in detail as well as their age related attributes (»young«, »old«). Because the primary type concept was not considered as important at that time as it is nowadays, Calvert, like many other authors, did not designate a particular specimen as the type. After completing this seminal work (Calvert 1901– 1908), in the concluding introduction that was written in November 1908, he designated several holotypes in the Biologia Centrali-Americana, including that of Hetaerina infecta Calvert, 1901 (Calvert 1908). Kimmins (1969: 305) accepted Calvert’s designations and subsequent authors have stretched the rules to accept this. The male and the female preserved in the Berlin collection should consequently be considered paratypes. Garrison (1990: 217) stated » Types.− Lectotype male in BMNH (examined). I also examined a paralectotype in the CM«. Since he examined the holotype, stated as lectotype in his Synopsis, he was unaware of the existence of “cotypes” housed in Berlin. After consulting Rosser Garrison, who revised his previous statement (pers. comm.), the two mentioned specimens should be considered paratypes and not paralectotypes. They have no name-bearing function in terms of the International Code of Zoological Nomenclature.Published as part of Mélanie Turiault, 2016, The type material of Calopterygidae in the Museum für Naturkunde in Berlin (Odonata), pp. 95-106 in Odonatologica 45 (1) on pages 97-99, DOI: 10.5281/zenodo.5085
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