Charles Polk

2.0k total citations
40 papers, 732 citations indexed

About

Charles Polk is a scholar working on Biophysics, Electrical and Electronic Engineering and Astronomy and Astrophysics. According to data from OpenAlex, Charles Polk has authored 40 papers receiving a total of 732 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Biophysics, 10 papers in Electrical and Electronic Engineering and 9 papers in Astronomy and Astrophysics. Recurrent topics in Charles Polk's work include Electromagnetic Fields and Biological Effects (15 papers), Earthquake Detection and Analysis (5 papers) and Lightning and Electromagnetic Phenomena (5 papers). Charles Polk is often cited by papers focused on Electromagnetic Fields and Biological Effects (15 papers), Earthquake Detection and Analysis (5 papers) and Lightning and Electromagnetic Phenomena (5 papers). Charles Polk collaborates with scholars based in United States and Canada. Charles Polk's co-authors include Tuomo Vuolteenaho, Randolph B. Cohen, A.T.T. Tran, Anh Phuong Tran, Roy K. Aaron, Deborah McK. Ciombor, Shuo Wang, Hugh S. Keeping, John O. Ledyard and Robin Hanson and has published in prestigious journals such as The Quarterly Journal of Economics, Proceedings of the IEEE and Journal of Electroanalytical Chemistry.

In The Last Decade

Charles Polk

34 papers receiving 635 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Charles Polk United States 16 191 149 125 121 117 40 732
Yoshihiro Ohtsuka Japan 17 53 0.3× 13 0.1× 55 0.4× 363 3.0× 6 0.1× 128 949
Chao Dong China 14 15 0.1× 6 0.0× 153 1.2× 172 1.4× 11 0.1× 57 676
Wolfram Bunk Germany 12 109 0.6× 40 0.3× 49 0.4× 150 1.2× 17 699
André Khalil United States 17 67 0.4× 50 0.3× 37 0.3× 13 0.1× 39 719
Marcel Hörning Germany 15 36 0.2× 278 1.9× 12 0.1× 21 0.2× 35 901
Sayantan Ghosh India 12 11 0.1× 15 0.1× 24 0.2× 43 0.4× 8 0.1× 34 459
N. Decoster France 6 19 0.1× 17 0.1× 114 0.9× 15 0.1× 40 0.3× 6 339
William Brown United States 16 126 0.7× 47 0.3× 9 0.1× 45 0.4× 49 764
Ed Leeper United States 8 1.5k 7.6× 20 0.1× 8 0.1× 124 1.0× 10 1.8k
J. P. Rigaut France 14 84 0.4× 12 0.1× 16 0.1× 9 0.1× 29 660

Countries citing papers authored by Charles Polk

Since Specialization
Citations

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

Fields of papers citing papers by Charles Polk

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Charles Polk. 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 Charles Polk. The network helps show where Charles Polk may publish in the future.

Co-authorship network of co-authors of Charles Polk

This figure shows the co-authorship network connecting the top 25 collaborators of Charles Polk. A scholar is included among the top collaborators of Charles Polk 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 Charles Polk. Charles Polk 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.
Polk, Charles, et al.. (2018). COMMENTARY: A Market Structure That Fits the Needs of Portfolio Managers. The Journal of Trading. 13(4). 80–81. 1 indexed citations
2.
Polk, Charles. (2009). Mars by Way of Storytellers and Patrons. Journal of the British Interplanetary Society. 62. 187–197.
3.
Aaron, Roy K., et al.. (2000). ?Power frequency fields promote cell differentiation coincident with an increase in transforming growth factor-b1 expression?. Bioelectromagnetics. 21(1). 73–73. 2 indexed citations
4.
Polk, Charles. (2000). Biological applications of large electric fields: some history and fundamentals. IEEE Transactions on Plasma Science. 28(1). 6–14. 15 indexed citations
5.
Polk, Charles. (2000). Cows, ground surface potentials and earth resistivity. Bioelectromagnetics. 22(1). 7–18. 6 indexed citations
6.
Blackinton, D., et al.. (1994). Non-ionizing Electromagnetic Radiation: A Study of Carcinogenic and Cancer Treatment Potential. Reviews on Environmental Health. 10(3-4). 197–207. 8 indexed citations
7.
Polk, Charles. (1992). Dosimetric extrapolations of extremely-low-frequency electric and magnetic fields across biological systems. Bioelectromagnetics. 13(S1). 205–208. 11 indexed citations
8.
Polk, Charles. (1992). Dosimetry of extremely-low-frequency magnetic fields. Bioelectromagnetics. 13(S1). 209–235. 47 indexed citations
9.
Polk, Charles. (1992). Counter-ion polarization and low frequency, low electric field intensity biological effects. Journal of Electroanalytical Chemistry. 343(1-2). 279–289. 1 indexed citations
10.
11.
Polk, Charles. (1990). Electric fields and surface charges induced by ELF magnetic fields. Bioelectromagnetics. 11(2). 189–201. 30 indexed citations
12.
Polk, Charles. (1980). Measurement of ELF field strength. IRE Transactions on Antennas and Propagation. 28(1). 140–146. 2 indexed citations
13.
Tran, Anh Phuong & Charles Polk. (1979). Schumann resonances and electrical conductivity of the atmosphere and lower ionosphere—II. Evaluation of conductivity profiles from experimental Schumann resonance data. Journal of Atmospheric and Terrestrial Physics. 41(12). 1249–1261. 20 indexed citations
14.
Tran, A.T.T. & Charles Polk. (1979). Schumann resonances and electrical conductivity of the atmospher and lower ionosphere—I. Effects of conductivity at various altitudes on resonance frequencies and attenuation. Journal of Atmospheric and Terrestrial Physics. 41(12). 1241–1248. 24 indexed citations
15.
Polk, Charles, et al.. (1976). Influence of Extremely Low Frequency Electric and Magnetic Fields upon Growth Development and Behavior in Domestic Birds. Phase II. (Modulated Wave).. Defense Technical Information Center (DTIC). 1 indexed citations
16.
17.
Tran, A.T.T. & Charles Polk. (1970). RESEARCH ON EXTREMELY LOW FREQUENCY PROPAGATION WITH PARTICULAR EMPHASIS ON SCHUMANN RESONANCE AND RELATED PHENOMENA.. Defense Technical Information Center (DTIC). 1 indexed citations
18.
Polk, Charles. (1965). Electron density distribution in ionosphere and exosphere. Proceedings of the IEEE. 53(3). 334–335. 66 indexed citations
19.
Polk, Charles. (1963). Fundamentals of electricity and magnetism. Proceedings of the IEEE. 51(2). 412–412. 17 indexed citations
20.
Polk, Charles, et al.. (1962). Schumann resonances of the earth-ionosphere cavity - extremely low frequency reception at Kingston, R.I. Journal of Research of the National Bureau of Standards Section D Radio Propagation. 66D(3). 313–313. 15 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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