Paul H. Hardy

5.8k total citations · 1 hit paper
28 papers, 5.1k citations indexed

About

Paul H. Hardy is a scholar working on Immunology, Physiology and Infectious Diseases. According to data from OpenAlex, Paul H. Hardy has authored 28 papers receiving a total of 5.1k indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Immunology, 8 papers in Physiology and 5 papers in Infectious Diseases. Recurrent topics in Paul H. Hardy's work include Syphilis Diagnosis and Treatment (8 papers), Reproductive tract infections research (4 papers) and Immunodeficiency and Autoimmune Disorders (3 papers). Paul H. Hardy is often cited by papers focused on Syphilis Diagnosis and Treatment (8 papers), Reproductive tract infections research (4 papers) and Immunodeficiency and Autoimmune Disorders (3 papers). Paul H. Hardy collaborates with scholars based in United States and United Kingdom. Paul H. Hardy's co-authors include Howard G. Meyer, Ludwig A. Sternberger, E. Ellen Nell, Michael V. Martin, Thomas B. Turner, Barbara A. Newman, Patricia Charache, Matthew Pollack, Gerald A. Cole and Andrew A. Monjan and has published in prestigious journals such as Nature, The Lancet and The Journal of Experimental Medicine.

In The Last Decade

Paul H. Hardy

28 papers receiving 4.5k citations

Hit Papers

align trajectories sort by overperformance

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

THE UNLABELED ANTIBODY ENZYME METHOD OF IMMUNOHISTOCHEMISTRY PREPARATION AND PROPERTIES OF SOLUBLE ANTIGEN-ANTIBODY COMPLEX (HORSERADISH PEROXIDASE-ANTIHORSERADISH PEROXIDASE) AND ITS USE IN IDENTIFICATION OF SPIROCHETES

1970 4.6k citations Paul H. Hardy et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Paul H. Hardy United States	14	1.6k	983	674	642	532	28	5.1k
Howard G. Meyer United States	7	1.5k 1.0×	996 1.0×	660 1.0×	436 0.7×	551 1.0×	15	4.7k
Elizabeth H. Leduc United States	28	1.6k 1.0×	746 0.8×	700 1.0×	442 0.7×	191 0.4×	56	4.5k
Mario Stefanini Italy	40	2.0k 1.3×	698 0.7×	706 1.0×	363 0.6×	433 0.8×	157	5.9k
Susan Van Noorden United Kingdom	41	1.8k 1.1×	1.4k 1.4×	1.0k 1.5×	308 0.5×	579 1.1×	130	5.2k
Tibor Barka United States	38	2.6k 1.7×	627 0.6×	461 0.7×	1.7k 2.7×	604 1.1×	134	6.3k
Hugh D. Niall Australia	44	4.4k 2.8×	1.2k 1.2×	488 0.7×	445 0.7×	966 1.8×	99	7.9k
C. De Martino Italy	26	1.1k 0.7×	574 0.6×	586 0.9×	308 0.5×	184 0.3×	85	3.5k
R K Craig United Kingdom	37	2.6k 1.7×	944 1.0×	306 0.5×	238 0.4×	326 0.6×	103	4.6k
Albert H. Coons United States	26	1.1k 0.7×	660 0.7×	474 0.7×	284 0.4×	184 0.3×	63	4.0k
Geoffrey W. Tregear Australia	50	3.6k 2.3×	622 0.6×	674 1.0×	336 0.5×	701 1.3×	205	10.2k

Countries citing papers authored by Paul H. Hardy

Since Specialization

Citations

This map shows the geographic impact of Paul H. Hardy's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Paul H. Hardy with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Paul H. Hardy more than expected).

Fields of papers citing papers by Paul H. Hardy

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Paul H. Hardy. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Paul H. Hardy. The network helps show where Paul H. Hardy may publish in the future.

Co-authorship network of co-authors of Paul H. Hardy

This figure shows the co-authorship network connecting the top 25 collaborators of Paul H. Hardy. A scholar is included among the top collaborators of Paul H. Hardy based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Paul H. Hardy. Paul H. Hardy is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Martin, Michael V. & Paul H. Hardy. (1991). Two cases of oral infection by methicillin-resistant Staphylococcus aureus. BDJ. 170(2). 63–64. 28 indexed citations

Longman, Lesley, et al.. (1991). Antibiotic-resistant oral streptococci in dental patients susceptible to infective endocarditis. Journal of Medical Microbiology. 34(1). 33–37. 16 indexed citations

Hardy, Paul H.. (1985). Prospects for Improved Laboratory Diagnoses of Treponemal Infections and Species Differentiation. Clinical Infectious Diseases. 7(Supplement_2). S300–S304. 5 indexed citations

Hardy, Paul H., et al.. (1985). Prevalence of Six Sexually Transmitted Disease Agents Among Pregnant Inner-City Adolescents and Pregnancy Outcome. The Journal of Urology. 133(2). 345–345. 1 indexed citations

Klein, John R., Andrew A. Monjan, Paul H. Hardy, & Gerald A. Cole. (1980). Abrogation of genetically controlled resistance of mice to Treponema pallidum by irradiation. Nature. 283(5747). 572–574. 18 indexed citations

Hardy, Paul H., Donald J. Graham, E. Ellen Nell, & Arthur M. Dannenberg. (1979). Macrophages in immunity to syphilis: suppressive effect of concurrent infection with Mycobacterium bovis BCG on the development of syphilitic lesions and growth of Treponema pallidum in tuberculin-positive rabbits. Infection and Immunity. 26(2). 751–763. 11 indexed citations

Hardy, Paul H. & E. Ellen Nell. (1975). Isolation and Purification of Treponema pallidum from Syphilitic Lesions in Rabbits. Infection and Immunity. 11(6). 1296–1299. 10 indexed citations

Hardy, Paul H. & E. Ellen Nell. (1972). A STUDY OF THE PROPERTIES OF SORBENT, THE REAGENT EMPLOYED IN THE FLUORESCENT TREPONEMAL ANTIBODY-ABSORPTION TEST. American Journal of Epidemiology. 96(2). 141–152. 10 indexed citations

Ryan, Stephen J., et al.. (1972). Persistence of Virulent Treponema Pallidum Despite Penicillin Therapy in Congenital Syphilis. American Journal of Ophthalmology. 73(2). 258–261. 4 indexed citations

10.

Nell, E. Ellen & Paul H. Hardy. (1972). The use of freeze-preserved treponemes in the Treponema pallidum immobilization test. Cryobiology. 9(5). 404–410. 11 indexed citations

11.

Ryan, Stephen J., E. Ellen Nell, & Paul H. Hardy. (1972). A Study of Aqueous Humor for the Presence of Spirochetes. American Journal of Ophthalmology. 73(2). 250–257. 4 indexed citations

12.

Turner, Thomas B., Paul H. Hardy, & Barbara A. Newman. (1969). Infectivity tests in syphilis.. Sexually Transmitted Infections. 45(3). 183–195. 50 indexed citations

13.

Hardy, Paul H. & E. Ellen Nell. (1967). Four Transfer Factors in a Single Bacterial Strain. Nature. 214(5086). 414–415. 6 indexed citations

14.

Hardy, Paul H., et al.. (1966). Nutritional Requirements of Anaerobic Spirochetes I. Demonstration of Isobutyrate and Bicarbonate as Growth Factors for a Strain of Treponema microdentium. Journal of Bacteriology. 91(1). 27–32. 19 indexed citations

15.

Nell, E. Ellen & Paul H. Hardy. (1966). Studies on the chemical composition and immunologic properties of a polysaccharide from the reiter treponeme. Immunochemistry. 3(3). 233–245. 12 indexed citations

16.

Hardy, Paul H., et al.. (1964). USE OF A BACTERIAL CULTURE FILTRATE AS AN AID TO THE ISOLATION AND GROWTH OF ANAEROBIC SPIROCHETES. Journal of Bacteriology. 87(6). 1521–1525. 7 indexed citations

17.

Hardy, Paul H., et al.. (1963). COLONIAL GROWTH OF ANAEROBIC SPIROCHETES ON SOLID MEDIA. Journal of Bacteriology. 86(4). 616–626. 12 indexed citations

18.

Hardy, Paul H. & E. Ellen Nell. (1961). INFLUENCE OF OSMOTIC PRESSURE ON THE MORPHOLOGY OF THE REITER TREPONEME. Journal of Bacteriology. 82(6). 967–978. 23 indexed citations

19.

Hardy, Paul H., et al.. (1961). INFLUENCE OF LYSOZYME UPON THE TREPONEME IMMOBILIZATION REACTION1. American Journal of Epidemiology. 73(2). 236–244. 30 indexed citations

20.

Hardy, Paul H. & E. Ellen Nell. (1955). SPECIFIC AGGLUTINATION OF TREPONEMA PALLIDUM BY SERA FROM RABBITS AND HUMAN BEINGS WITH TREPONEMAL INFECTIONS. The Journal of Experimental Medicine. 101(4). 367–382. 34 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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