John F. Ryan

6.3k total citations · 1 hit paper
178 papers, 4.6k citations indexed

About

John F. Ryan is a scholar working on Atomic and Molecular Physics, and Optics, Condensed Matter Physics and Electrical and Electronic Engineering. According to data from OpenAlex, John F. Ryan has authored 178 papers receiving a total of 4.6k indexed citations (citations by other indexed papers that have themselves been cited), including 67 papers in Atomic and Molecular Physics, and Optics, 37 papers in Condensed Matter Physics and 36 papers in Electrical and Electronic Engineering. Recurrent topics in John F. Ryan's work include Semiconductor Quantum Structures and Devices (40 papers), Physics of Superconductivity and Magnetism (24 papers) and Quantum and electron transport phenomena (22 papers). John F. Ryan is often cited by papers focused on Semiconductor Quantum Structures and Devices (40 papers), Physics of Superconductivity and Magnetism (24 papers) and Quantum and electron transport phenomena (22 papers). John F. Ryan collaborates with scholars based in United Kingdom, United States and Japan. John F. Ryan's co-authors include M.C. Tatham, C. T. Foxon, Walter L. Slaghuis, Nigel J. Walker, T. Butz, Anthony Seaton, Lang Tran, Andrew Maynard, Martin A. Philbert and Vicki Stone and has published in prestigious journals such as Nature, Science and New England Journal of Medicine.

In The Last Decade

John F. Ryan

169 papers receiving 4.4k citations

Hit Papers

align trajectories

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.

Safe handling of nanotechnology

2006 1.1k citations Andrew Maynard, R. John Aitken et al. Nature profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John F. Ryan United Kingdom	32	1.2k	1.0k	630	607	532	178	4.6k
Yoram Shapira Israel	42	1.2k 1.0×	1.0k 1.0×	2.1k 3.3×	507 0.8×	634 1.2×	228	6.0k
Winfried Möller Germany	35	1.1k 0.9×	370 0.4×	246 0.4×	1.1k 1.8×	518 1.0×	84	5.2k
Kazuhiro Hara Japan	40	566 0.5×	479 0.5×	489 0.8×	723 1.2×	558 1.0×	387	6.5k
Tadashi Kobayashi Japan	32	423 0.4×	530 0.5×	308 0.5×	244 0.4×	413 0.8×	422	4.2k
Robert E. Taylor United States	39	2.8k 2.3×	379 0.4×	384 0.6×	474 0.8×	1.9k 3.6×	188	7.6k
Maiko Fujimori Japan	51	584 0.5×	190 0.2×	311 0.5×	517 0.9×	1.9k 3.5×	500	9.1k
Michael J. Gordon United States	38	1.7k 1.5×	527 0.5×	1.3k 2.0×	1.2k 2.0×	68 0.1×	176	6.1k
Michael J. Callahan United States	39	1.7k 1.4×	157 0.1×	1.1k 1.7×	710 1.2×	979 1.8×	196	8.1k
Osamu Yamazaki Japan	33	1.0k 0.9×	501 0.5×	746 1.2×	451 0.7×	496 0.9×	231	4.0k
Carlo Cavallotti Italy	42	1.5k 1.3×	956 0.9×	489 0.8×	710 1.2×	998 1.9×	323	6.6k

Countries citing papers authored by John F. Ryan

Since Specialization

Citations

This map shows the geographic impact of John F. 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 F. 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 F. Ryan more than expected).

Fields of papers citing papers by John F. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of John F. Ryan. A scholar is included among the top collaborators of John F. 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 F. Ryan. John F. Ryan 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

Ryan, John F., et al.. (2024). Building Affordable, Durable, Medium-fidelity Ballistic Gel Phantoms for Ultrasound-guided Nerve Block Training. Journal of Visualized Experiments. 1 indexed citations

Berger, Jonathan, Michelle K. Leach, John F. Ryan, et al.. (2023). Erector spinae plane blocks for analgesia after percutaneous nephrolithotomy. Canadian Urological Association Journal. 17(10). E330–E335. 2 indexed citations

Ryan, John F., et al.. (2021). Can saline injection protect phrenic nerve? – A randomised controlled study. Indian Journal of Anaesthesia. 65(6). 445–450. 4 indexed citations

Howell, Lydia Pleotis, et al.. (2019). Educational and Career Development Outcomes Among Undergraduate Summer Research Interns: A Pipeline for Pathology, Laboratory Medicine, and Biomedical Science. Academic Pathology. 6. 1533893233–1533893233. 13 indexed citations

Ryan, John F., et al.. (2014). ACL Reconstruction: Do Outcomes Differ by Sex?. Journal of Bone and Joint Surgery. 96(6). 507–512. 76 indexed citations

Scully, Christopher G., Nandakumar Selvaraj, Richa Wardhan, et al.. (2012). Using Time-Frequency Analysis of the Photoplethysmographic Waveform to Detect the Withdrawal of 900 mL of Blood. Anesthesia & Analgesia. 115(1). 74–81. 19 indexed citations

Ryan, John F.. (2011). Enhancing Our Community of Inquiry: Thoughts on Principles and Best Practices in Research With Deaf and Hard of Hearing Individuals. American annals of the deaf. 156(1). 69–72. 1 indexed citations

Kasai, Nahoko, et al.. (2010). AFM observation of single, functioning ionotropic glutamate receptors reconstituted in lipid bilayers. Biochimica et Biophysica Acta (BBA) - General Subjects. 1800(7). 655–661. 8 indexed citations

Planque, Maurits R.R. de, Vincent Raussens, Sonia Contera, et al.. (2007). β-Sheet Structured β-Amyloid(1-40) Perturbs Phosphatidylcholine Model Membranes. Journal of Molecular Biology. 368(4). 982–997. 70 indexed citations

10.

Sumitomo, Koji, et al.. (2006). First steps towards the development of a new bio-optoelectronic device with a functioning protein on a silicon substrate. NTT technical review. 4(9). 40–47.

11.

Slaghuis, Walter L. & John F. Ryan. (2006). Directional motion contrast sensitivity in developmental dyslexia. Vision Research. 46(20). 3291–3303. 31 indexed citations

12.

Maynard, Andrew, R. John Aitken, T. Butz, et al.. (2006). Safe handling of nanotechnology. Nature. 444(7117). 267–269. 1077 indexed citations breakdown →

13.

Contera, Sonia, et al.. (2005). Extraction of an alpha-helical peptide from a lipid bilayer: Dynamic Force Spectroscopy and Molecular Dynamics. Biophysical Journal. 88.

14.

Contera, Sonia, Vincent Lemaître, Maurits R.R. de Planque, Anthony Watts, & John F. Ryan. (2005). Unfolding and Extraction of a Transmembrane α-Helical Peptide: Dynamic Force Spectroscopy and Molecular Dynamics Simulations. Biophysical Journal. 89(5). 3129–3140. 26 indexed citations

15.

Woerner, M., Thomas Elsaesser, David Smith, et al.. (2000). Femtosecond mid-infrared response of the high-T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta//. Quantum Electronics and Laser Science Conference. 149. 3 indexed citations

16.

Ryan, John F., et al.. (1994). Myoplasmic Calcium Changes Precede Metabolic and Clinical Signs of Porcine Malignant Hyperthermia. Anesthesia & Analgesia. 79(5). 1007???1011–1007???1011. 16 indexed citations

17.

Armendi, Alberto J. de, et al.. (1993). Morphine-Induced Myoclonic Movements in a Pediatric Pain Patient. Anesthesia & Analgesia. 77(1). 191???192–191???192. 13 indexed citations

18.

Dershwitz, Mark, John F. Ryan, & Walter C. Guralnick. (1989). Safety of amide local anesthetics in patients susceptible to malignant hyperthermia. The Journal of the American Dental Association. 118(3). 276–280. 7 indexed citations

19.

López, José R., Paul D. Allen, Lorenzo Álamo, et al.. (1987). Dantrolene prevents the malignant hyperthermic syndrome by reducing free intracellular calcium concentration in skeletal muscle of susceptible swine. Cell Calcium. 8(5). 385–396. 28 indexed citations

20.

Elliott, R. J., et al.. (1978). Experimental and theoretical studies of effects of anharmonicity and high-temperature disorder on Raman scattering in fluorite crystals. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 360(1702). 317–345. 69 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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