151,028 research outputs found

    Jacobs, Leon -- 1955 -- Correspondence, Toxoplasmosis -- letter, 1955-07-25

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    Letter from Jacobs, Leon to Sabin, Albert B. dated 1955-07-25.Sabin Collection Fair Use PolicyIncludes "The Production of Experimental Ocular Toxoplasmosis in Rabbits" by Jacobs, Leon, et. al.Includes "The production and treatment of acute toxoplasmic uveitis in the anterior segment of the rabbit eye" by Jacobs, Leon, et. al

    Jacobs, Leon -- 1959-79 -- Correspondence, Individual -- letter, 1960-04-25

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    Letter from Jacobs, Leon to Sabin, Albert B. dated 1960-04-25.Sabin Collection Fair Use Policy</a

    Jacobs, Leon -- 1959-79 -- Correspondence, Individual -- letter, 1960-04-02

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    Letter from Jacobs, Leon to Sabin, Albert B. dated 1960-04-02.Sabin Collection Fair Use Policy</a

    Jacobs, Leon -- 1959-79 -- Correspondence, Individual -- letter, 1979-09-22

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    Letter from Jacobs, Leon to Sabin, Albert B. dated 1979-09-22.Sabin Collection Fair Use Policy</a

    Oral History with Shelby B. Jacobs

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    Oral history interview with Shelby B. Jacobs re: SCOPE (Summer Community Organization and Political Education) work in Macon, Georgia.Oral history interview with Shelby B. Jacobs re: SCOPE (Summer Community Organization and Political Education) work in Macon, Georgia.Mercer University Center for Southern Studie

    Jacobs, Leon -- 1959-79 -- Correspondence, Individual -- letter, 1960-04-27

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    Letter from Sabin, Albert B. to Jacobs, Leon dated 1960-04-27.Sabin Collection Fair Use Policy</a

    Personal Papers (MS 80-0002)

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    Letter from R. B. Jacobs to D. W. Kempner thanking him for his "order for Gerbera plants" and letting him know when he can expect the shipment to arrive

    [photograph] Portret van een man. (reproductie) /

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    Op achterzijde foto staat: reclame B. Jacobs-Carter photographiePaul Fredericq. Portretten uit nalatenschap.Bijzondere collectie

    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
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