James W. Ryan

7.5k total citations
206 papers, 5.4k citations indexed

About

James W. Ryan is a scholar working on Molecular Biology, Genetics and Oncology. According to data from OpenAlex, James W. Ryan has authored 206 papers receiving a total of 5.4k indexed citations (citations by other indexed papers that have themselves been cited), including 76 papers in Molecular Biology, 47 papers in Genetics and 38 papers in Oncology. Recurrent topics in James W. Ryan's work include Coagulation, Bradykinin, Polyphosphates, and Angioedema (45 papers), Protein Hydrolysis and Bioactive Peptides (39 papers) and Peptidase Inhibition and Analysis (32 papers). James W. Ryan is often cited by papers focused on Coagulation, Bradykinin, Polyphosphates, and Angioedema (45 papers), Protein Hydrolysis and Bioactive Peptides (39 papers) and Peptidase Inhibition and Analysis (32 papers). James W. Ryan collaborates with scholars based in United States, United Kingdom and Greece. James W. Ryan's co-authors include Una Ryan, Alfred Chung, Una Smith, David S. Smith, John M. Stewart, Frederic E. Dorer, Andrew Chiu, David J. Crutchley, Narendra B. Oza and Chao Ma and has published in prestigious journals such as Nature, Science and Journal of Biological Chemistry.

In The Last Decade

James W. Ryan

196 papers receiving 4.7k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
James W. Ryan 2.1k 1.1k 791 745 732 206 5.4k
Bernd R. Binder 5.4k 2.6× 1.5k 1.3× 968 1.2× 1.2k 1.6× 1.3k 1.8× 332 13.9k
Takashi Uchiyama 3.4k 1.6× 518 0.5× 533 0.7× 722 1.0× 736 1.0× 336 12.0k
Gérard Friedlander 3.5k 1.7× 435 0.4× 271 0.3× 851 1.1× 1.4k 2.0× 271 11.8k
Paul L. Fox 6.2k 3.0× 768 0.7× 437 0.6× 1.2k 1.6× 580 0.8× 177 12.0k
T Sugimoto 1.4k 0.7× 1.0k 0.9× 103 0.1× 711 1.0× 376 0.5× 203 4.0k
Tohru Takahashi 1.5k 0.7× 594 0.5× 238 0.3× 617 0.8× 1.6k 2.2× 443 6.7k
Jürgen E. Schneider 2.6k 1.2× 2.5k 2.2× 204 0.3× 606 0.8× 513 0.7× 305 8.5k
Yukio Ikeda 1.8k 0.8× 291 0.3× 129 0.2× 755 1.0× 176 0.2× 242 6.5k
David M. Silver 1.3k 0.6× 552 0.5× 167 0.2× 549 0.7× 237 0.3× 155 6.1k
Xiaoxia Wang 3.6k 1.7× 287 0.3× 122 0.2× 448 0.6× 399 0.5× 320 6.9k

Countries citing papers authored by James W. Ryan

Since Specialization
Citations

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

Fields of papers citing papers by James W. Ryan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of James W. Ryan

This figure shows the co-authorship network connecting the top 25 collaborators of James W. Ryan. A scholar is included among the top collaborators of James W. 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 James W. Ryan. James W. 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.
2.
Li, Leyuan, James W. Ryan, Zhibin Ning, et al.. (2020). A functional ecological network based on metaproteomics responses of individual gut microbiomes to resistant starches. Computational and Structural Biotechnology Journal. 18. 3833–3842. 18 indexed citations
3.
Ryan, James W., Peter Biely, Mária Vršanská, et al.. (1998). Biochemical and catalytic properties of an endoxylanase purified from the culture filtrate of Thermomyces lanuginosus ATCC 46882. Carbohydrate Research. 306(3). 445–455. 75 indexed citations
4.
Krongrad, Arnon, Elena N. Atochina‐Vasserman, James W. Ryan, & Bernard A. Roos. (1997). Endopeptidase 24.11 activity in the human prostate cancer cell lines LNCaP and PPC-1. Urological Research. 25(2). 113–116. 3 indexed citations
5.
Ryan, James W., et al.. (1994). Estimation of rate constants for reactions of pulmonary microvascular angiotensin converting enzyme with an inhibitor and a substrate in vivo.. Journal of Pharmacology and Experimental Therapeutics. 270(1). 260–268. 1 indexed citations
6.
Denslow, Nancy D., et al.. (1994). Guinea Pig Membrane-Bound Aminopeptidase P Is a Member of the Proline Peptidase Family. Biochemical and Biophysical Research Communications. 205(3). 1790–1795. 12 indexed citations
7.
Ryan, James W., et al.. (1994). Immunoaffinity Purifications of Aminopeptidase P from Guinea Pig Lungs, Kidney and Serum. Biochemical and Biophysical Research Communications. 205(3). 1796–1802. 11 indexed citations
8.
Burch, Sandra E., et al.. (1994). Radiation-Induced Early Pulmonary Endothelial Ectoenzyme Dysfunction in Vivo: Effect of Indomethacin. Toxicology and Applied Pharmacology. 124(1). 112–122. 10 indexed citations
9.
Ryan, James W.. (1993). Immunoscintigraphy in primary colorectal cancer. Cancer. 71(S12). 4217–4224. 2 indexed citations
10.
Ryan, James W., et al.. (1993). A Radiochemical Assay for Aminopeptidase N. Analytical Biochemistry. 210(1). 27–33. 9 indexed citations
11.
Williams, Kim A., et al.. (1989). Planar positron imaging of rubidium-82 for myocardial infarction: A comparison with thallium-201 and regional wall motion. American Heart Journal. 118(3). 601–610. 7 indexed citations
12.
Southwick, Stephen M., Alfred Chung, Thomas L. Davenport, & James W. Ryan. (1986). A Rapid, Simple Synthesis and Purification of Abscisic Acid Glucose Ester. PLANT PHYSIOLOGY. 81(1). 323–325. 11 indexed citations
13.
Ryan, James W. & Chenwei Ma. (1985). Crustal dynamics project data analysis fixed station VLBI geodetic results. Unknow. 3 indexed citations
14.
DeMeester, Tom R., Edwin Lafontaine, B. Joelsson, et al.. (1981). Relationship of a hiatal hernia to the function of the body of the esophagus and the gastroesophageal junction. Journal of Thoracic and Cardiovascular Surgery. 82(4). 547–558. 75 indexed citations
15.
Ryan, James W. & N. R. Vandenberg. (1980). The Mark III Software System - An Integrated System for the Scheduling, Acquisition, Processing, and Analysis of VLBI Experiments. Bulletin of the American Astronomical Society. 12. 457. 2 indexed citations
16.
Ryan, Una & James W. Ryan. (1980). Angiotensin-converting enzyme: II. Pulmonary endothelial cells in culture.. Environmental Health Perspectives. 35. 171–180. 9 indexed citations
17.
Ryan, James W., Alfred Chung, & Una Ryan. (1980). Angiotensin-converting enzyme: I. New strategies for assay. Environmental Health Perspectives. 35. 165–169. 18 indexed citations
18.
Fisher, G. H., et al.. (1979). Structure-activity relationships for kininase II inhibition by lower homologs of the bradykinin potentiating peptide BPP9a.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 120B. 651–63. 2 indexed citations
19.
Heinemann, Henry O., James W. Ryan, & Una Ryan. (1977). Is the lung a para-endocrine organ?. The American Journal of Medicine. 63(4). 595–603. 16 indexed citations
20.
Smith, Una & James W. Ryan. (1972). Substructural features of pulmonary endothelial cavaolae. Tissue and Cell. 4(1). 49–54. 16 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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