James Hemp

4.6k total citations
50 papers, 2.6k citations indexed

About

James Hemp is a scholar working on Molecular Biology, Ecology and Surgery. According to data from OpenAlex, James Hemp has authored 50 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Molecular Biology, 21 papers in Ecology and 10 papers in Surgery. Recurrent topics in James Hemp's work include Microbial Community Ecology and Physiology (21 papers), Photosynthetic Processes and Mechanisms (19 papers) and Genomics and Phylogenetic Studies (13 papers). James Hemp is often cited by papers focused on Microbial Community Ecology and Physiology (21 papers), Photosynthetic Processes and Mechanisms (19 papers) and Genomics and Phylogenetic Studies (13 papers). James Hemp collaborates with scholars based in United States, Germany and Australia. James Hemp's co-authors include Woodward W. Fischer, Robert B. Gennis, Jena E. Johnson, Vitaliy B. Borisov, Michael I. Verkhovsky, Lewis M. Ward, Philip Hugenholtz, Rochelle M. Soo, Donovan H. Parks and Laura Pace and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Journal of the American Chemical Society.

In The Last Decade

James Hemp

50 papers receiving 2.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
James Hemp United States 22 1.5k 870 318 311 271 50 2.6k
Jason Raymond United States 19 1.3k 0.9× 969 1.1× 271 0.9× 147 0.5× 123 0.5× 42 2.2k
Yoshihiro Fukumori Japan 33 2.1k 1.4× 411 0.5× 128 0.4× 381 1.2× 305 1.1× 133 3.3k
Masayuki Miyazaki Japan 32 1.8k 1.2× 1.5k 1.7× 868 2.7× 245 0.8× 349 1.3× 115 3.7k
William J. Brazelton United States 27 1000 0.7× 1.3k 1.5× 1.3k 4.0× 316 1.0× 141 0.5× 61 2.8k
Robert van Lis France 26 1.3k 0.9× 472 0.5× 258 0.8× 125 0.4× 136 0.5× 42 2.0k
Costantino Vetriani United States 31 1.7k 1.1× 2.0k 2.3× 904 2.8× 203 0.7× 352 1.3× 70 3.4k
Tatiana A. Vishnivetskaya United States 30 1.4k 0.9× 1.3k 1.5× 507 1.6× 383 1.2× 251 0.9× 79 3.5k
Franck Chauvat France 36 2.1k 1.5× 670 0.8× 254 0.8× 166 0.5× 212 0.8× 78 3.7k
Michael Hügler Germany 24 1.7k 1.1× 1.7k 2.0× 710 2.2× 328 1.1× 370 1.4× 37 3.2k
Agata Gambacorta Italy 41 3.6k 2.5× 1.5k 1.8× 911 2.9× 135 0.4× 240 0.9× 134 5.4k

Countries citing papers authored by James Hemp

Since Specialization
Citations

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

Fields of papers citing papers by James Hemp

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of James Hemp

This figure shows the co-authorship network connecting the top 25 collaborators of James Hemp. A scholar is included among the top collaborators of James Hemp 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 Hemp. James Hemp 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.
Davín, Adrián, Ben J. Woodcroft, Rochelle M. Soo, et al.. (2025). A geological timescale for bacterial evolution and oxygen adaptation. Science. 388(6742). eadp1853–eadp1853. 7 indexed citations
2.
Murali, Ranjani, Laura Pace, Robert A. Sanford, et al.. (2024). Diversity and evolution of nitric oxide reduction in bacteria and archaea. Proceedings of the National Academy of Sciences. 121(26). e2316422121–e2316422121. 12 indexed citations
3.
Hemp, James, et al.. (2022). Quantitative gastrointestinal function and corresponding symptom profiles in autonomic neuropathy. Frontiers in Neurology. 13. 1027348–1027348. 4 indexed citations
4.
Murali, Ranjani, James Hemp, & Robert B. Gennis. (2022). Evolution of quinol oxidation within the heme‑copper oxidoreductase superfamily. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1863(8). 148907–148907. 17 indexed citations
5.
Murali, Ranjani, Robert B. Gennis, & James Hemp. (2021). Evolution of the cytochrome bd oxygen reductase superfamily and the function of CydAA’ in Archaea. The ISME Journal. 15(12). 3534–3548. 32 indexed citations
6.
Sanchez, John Michael S., J. Scott McNally, Melissa Cortez, et al.. (2020). Neuroimmunogastroenterology: At the Interface of Neuroimmunology and Gastroenterology. Frontiers in Neurology. 11. 787–787. 6 indexed citations
7.
Soo, Rochelle M., James Hemp, & Philip Hugenholtz. (2019). Evolution of photosynthesis and aerobic respiration in the cyanobacteria. Free Radical Biology and Medicine. 140. 200–205. 48 indexed citations
8.
Ward, Lewis M., James Hemp, Patrick M. Shih, Shawn E. McGlynn, & Woodward W. Fischer. (2018). Evolution of Phototrophy in the Chloroflexi Phylum Driven by Horizontal Gene Transfer. Frontiers in Microbiology. 9. 260–260. 109 indexed citations
9.
Hemp, James, Lewis M. Ward, Laura Pace, & Woodward W. Fischer. (2015). Draft Genome Sequence of Ardenticatena maritima 110S, a Thermophilic Nitrate- and Iron-Reducing Member of the Chloroflexi Class Ardenticatenia. Genome Announcements. 3(6). 19 indexed citations
10.
Hemp, James, Lewis M. Ward, Laura Pace, & Woodward W. Fischer. (2015). Draft Genome Sequence of Ornatilinea apprima P3M-1, an Anaerobic Member of the Chloroflexi Class Anaerolineae. Genome Announcements. 3(6). 10 indexed citations
11.
Fischer, Woodward W., James Hemp, & Jena E. Johnson. (2015). Manganese and the Evolution of Photosynthesis. Origins of Life and Evolution of Biospheres. 45(3). 351–357. 53 indexed citations
12.
Hemp, James, Laura Pace, & Robert B. Gennis. (2012). The heme-copper oxidoreductase superfamily: Diversity, evolution and ecology. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1817. S107–S108. 2 indexed citations
13.
Borisov, Vitaliy B., Robert B. Gennis, James Hemp, & Michael I. Verkhovsky. (2011). The cytochrome bd respiratory oxygen reductases. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1807(11). 1398–1413. 405 indexed citations
14.
Hemp, James & Robert B. Gennis. (2008). Diversity of the Heme–Copper Superfamily in Archaea: Insights from Genomics and Structural Modeling. Results and problems in cell differentiation. 45. 1–31. 121 indexed citations
15.
Sievert, Stefan M., Kathleen M. Scott, Martin G. Klotz, et al.. (2007). Genome of the Epsilonproteobacterial Chemolithoautotroph Sulfurimonas denitrificans. Applied and Environmental Microbiology. 74(4). 1145–1156. 213 indexed citations
16.
Hemp, James, Caroline Christian, Blanca Barquera, Robert B. Gennis, & Todd J. Martı́nez. (2005). Helix Switching of a Key Active-Site Residue in the Cytochromecbb3Oxidases. Biochemistry. 44(32). 10766–10775. 51 indexed citations
17.
18.
Murray, James D., et al.. (2000). Left Iliac Vein Occlusion: Its Clinical Spectrum. Annals of Vascular Surgery. 14(5). 510–516. 7 indexed citations
19.
Greason, Kevin L., et al.. (1998). Ischemic Monomelic Neuropathy A Case Report and Literature Review. Vascular Surgery. 32(4). 385–390. 2 indexed citations
20.
Murray, James D., et al.. (1996). Internal Iliac Artery Aneurysm Following Aortic Reconstruction. Annals of Vascular Surgery. 10(1). 59–62. 11 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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