John J. Ryan

1.1k total citations
28 papers, 840 citations indexed

About

John J. Ryan is a scholar working on Health, Toxicology and Mutagenesis, Spectroscopy and Surgery. According to data from OpenAlex, John J. Ryan has authored 28 papers receiving a total of 840 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Health, Toxicology and Mutagenesis, 8 papers in Spectroscopy and 4 papers in Surgery. Recurrent topics in John J. Ryan's work include Toxic Organic Pollutants Impact (7 papers), Analytical Chemistry and Chromatography (6 papers) and Effects and risks of endocrine disrupting chemicals (4 papers). John J. Ryan is often cited by papers focused on Toxic Organic Pollutants Impact (7 papers), Analytical Chemistry and Chromatography (6 papers) and Effects and risks of endocrine disrupting chemicals (4 papers). John J. Ryan collaborates with scholars based in United States, Canada and Australia. John J. Ryan's co-authors include M. D. Atkinson, J. W. Wilesmith, Arnold Schecter, F. A. Bovey, F. P. Hood, James F. Lawrence, Lawrence S. Miller, Charles W. Parker, Ralph C. Williams and D E Coffin and has published in prestigious journals such as Environmental Science & Technology, Macromolecules and Analytical Biochemistry.

In The Last Decade

John J. Ryan

28 papers receiving 760 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John J. Ryan United States 15 421 206 153 107 93 28 840
Chih‐Wei Liu United States 19 438 1.0× 168 0.8× 18 0.1× 68 0.6× 94 1.0× 49 894
Walter Jantschko Austria 19 414 1.0× 69 0.3× 38 0.2× 10 0.1× 12 0.1× 22 1.3k
Sandipan Datta United States 13 233 0.6× 74 0.4× 12 0.1× 34 0.3× 20 0.2× 25 648
Kellie A. Woodling United States 15 165 0.4× 327 1.6× 8 0.1× 83 0.8× 26 0.3× 25 835
Hahyun Park South Korea 17 229 0.5× 238 1.2× 12 0.1× 36 0.3× 12 0.1× 46 705
Colleen M. Smith United States 15 357 0.8× 7 0.0× 153 1.0× 31 0.3× 23 0.2× 26 713
Donald A. Griffin United States 9 230 0.5× 55 0.3× 7 0.0× 13 0.1× 55 0.6× 17 452
J. R. Robinson Canada 16 183 0.4× 20 0.1× 8 0.1× 23 0.2× 20 0.2× 43 740
Siyuan Wang China 14 255 0.6× 25 0.1× 10 0.1× 42 0.4× 79 0.8× 44 579
Max S. Dunn United States 15 223 0.5× 20 0.1× 15 0.1× 24 0.2× 46 0.5× 67 631

Countries citing papers authored by John J. Ryan

Since Specialization
Citations

This map shows the geographic impact of John J. Ryan'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 John J. Ryan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John J. Ryan more than expected).

Fields of papers citing papers by John J. Ryan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John J. Ryan. 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 John J. Ryan. The network helps show where John J. Ryan may publish in the future.

Co-authorship network of co-authors of John J. Ryan

This figure shows the co-authorship network connecting the top 25 collaborators of John J. Ryan. A scholar is included among the top collaborators of John J. Ryan 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 John J. Ryan. John J. Ryan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ryan, John J., et al.. (2023). Necrotizing Pancreatitis: A comprehensive review of the presentation, management, and complications. Medical Research Archives. 11(5). 1 indexed citations
2.
Haque, Tamara T., Marcela T Taruselli, Daniel Stephenson, et al.. (2023). Fluoxetine restrains allergic inflammation by targeting an FcɛRI-ATP positive feedback loop in mast cells. Science Signaling. 16(802). eabc9089–eabc9089. 2 indexed citations
3.
Harden, Fiona, Leisa‐Maree Toms, Olaf Paepke, John J. Ryan, & Jochen F. Müller. (2007). Evaluation of age, gender and regional concentration differences for dioxin-like chemicals in the Australian population. Chemosphere. 67(9). S318–S324. 33 indexed citations
4.
Ryan, John J., et al.. (2006). Pseudomyxoma peritonei: a case of mucinous adenocarcinoma of the appendix presenting as inguinal hernia.. PubMed. 59(2). 54–5, 57. 5 indexed citations
5.
Schecter, Arnold, Linda S. Birnbaum, John J. Ryan, & John D. Constable. (2006). To the Editor. Environmental Research. 103(1). 147–148. 1 indexed citations
6.
Ryan, John J., et al.. (1995). Testosterone-Secreting Adrenal Adenoma That Contained Crystalloids of Reinke in an Adult Female Patient. Mayo Clinic Proceedings. 70(4). 380–383. 11 indexed citations
7.
Wilesmith, J. W., John J. Ryan, & M. D. Atkinson. (1991). Bovine spongiform encephalopathy: epidemiological studies on the origin. Veterinary Record. 128(9). 199–203. 326 indexed citations
8.
Ryan, John J., et al.. (1987). Human tissue levels of PCDDs and PCDFs from a fatal pentachlorophenol poisoning. Chemosphere. 16(8-9). 1989–1996. 24 indexed citations
9.
Ryan, John J., et al.. (1986). Critical analysis of open peritoneal lavage in blunt abdominal trauma. The American Journal of Surgery. 151(2). 221–223. 15 indexed citations
10.
Ryan, John J., et al.. (1985). Tissue distribution of dioxins and furans in humans from the general population. Chemosphere. 14(6-7). 929–932. 64 indexed citations
11.
Ryan, John J., et al.. (1980). High-performance liquid chromatography in the analysis of chorinated dibenzodioxins and dibenzofurans in chicken liver and wood shaving samples. Journal of Chromatography A. 197(2). 171–180. 23 indexed citations
12.
Williams, Thomas H., et al.. (1979). Novel application of proton nuclear magnetic resonance spectroscopy in the identification of 2'-chloronordiazepam metabolites in the dog. Journal of Medicinal Chemistry. 22(4). 436–440. 12 indexed citations
13.
Ryan, John J. & Bernd Hoffmann. (1978). Trenbolone Acetate: Experiences with Bound Residues in Cattle Tissues. Journal of AOAC INTERNATIONAL. 61(5). 1274–1279. 11 indexed citations
14.
Lawrence, James F., et al.. (1978). Comparison of electron capture and electrolytic conductivity for the gas chromatographic detection of some perchloro derivatives of diethylstilbestrol. Journal of Chromatography A. 147. 398–400. 4 indexed citations
15.
16.
Ryan, John J.. (1976). Chromatographic analysis of hormone residues in food. Journal of Chromatography A. 127(1). 53–89. 15 indexed citations
17.
Ryan, John J., et al.. (1973). Analytical Constituents of Strawberry and Raspberry and Their Change in Jam Production. Journal of AOAC INTERNATIONAL. 56(3). 743–747. 2 indexed citations
18.
Ryan, John J., Charles W. Parker, & Ralph C. Williams. (1972). -Globulin binding of morphine in heroin addicts.. PubMed. 80(2). 155–64. 34 indexed citations
19.
Bovey, F. A., John J. Ryan, G. Spach, & F. Heitz. (1971). Polymer Nuclear Magnetic Resonance Spectroscopy. XX. Helix-Coil Transitions in Poly(γ-benzyl D,L-glutamates). Macromolecules. 4(4). 433–434. 14 indexed citations
20.
Bovey, F. A., John J. Ryan, & F. P. Hood. (1968). Polymer Nuclear Magnetic Resonance Spectroscopy. XV. The Conformation of Polysarcosine. Macromolecules. 1(4). 305–307. 59 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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