Jeffra K. Schaefer

3.1k total citations
38 papers, 2.4k citations indexed

About

Jeffra K. Schaefer is a scholar working on Health, Toxicology and Mutagenesis, Pollution and Ecology. According to data from OpenAlex, Jeffra K. Schaefer has authored 38 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Health, Toxicology and Mutagenesis, 13 papers in Pollution and 10 papers in Ecology. Recurrent topics in Jeffra K. Schaefer's work include Mercury impact and mitigation studies (27 papers), Heavy Metal Exposure and Toxicity (13 papers) and Heavy metals in environment (11 papers). Jeffra K. Schaefer is often cited by papers focused on Mercury impact and mitigation studies (27 papers), Heavy Metal Exposure and Toxicity (13 papers) and Heavy metals in environment (11 papers). Jeffra K. Schaefer collaborates with scholars based in United States, Sweden and Switzerland. Jeffra K. Schaefer's co-authors include François M. M. Morel, Tamar Barkay, Ronald S. Oremland, Ulf Skyllberg, John R. Reinfelder, Erik Björn, Liyuan Liang, Baohua Gu, Wang Zheng and Aleksandra Szczuka and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Environmental Science & Technology and Geochimica et Cosmochimica Acta.

In The Last Decade

Jeffra K. Schaefer

38 papers receiving 2.3k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Jeffra K. Schaefer United States 26 1.8k 674 592 321 229 38 2.4k
E. Erin Mack United States 21 1.0k 0.6× 486 0.7× 750 1.3× 193 0.6× 154 0.7× 50 1.8k
Charles W. Culbertson United States 19 671 0.4× 370 0.5× 435 0.7× 738 2.3× 218 1.0× 31 1.8k
Mathilde Monperrus France 36 2.7k 1.6× 981 1.5× 1.1k 1.9× 171 0.5× 132 0.6× 114 3.5k
Emmanuel Tessier France 34 2.3k 1.3× 976 1.4× 834 1.4× 162 0.5× 101 0.4× 140 3.2k
Janina M. Benoit United States 24 2.9k 1.6× 770 1.1× 1.3k 2.2× 126 0.4× 87 0.4× 33 3.4k
Anko Fischer Germany 22 618 0.4× 388 0.6× 817 1.4× 191 0.6× 88 0.4× 33 1.5k
Seigo Amachi Japan 25 607 0.3× 367 0.5× 522 0.9× 904 2.8× 338 1.5× 81 2.4k
Shelley E. Hoeft United States 15 722 0.4× 421 0.6× 357 0.6× 1.3k 4.0× 185 0.8× 18 1.7k
Barbara Morasch Germany 17 491 0.3× 334 0.5× 841 1.4× 191 0.6× 95 0.4× 20 1.4k
Christoph Aeppli United States 23 786 0.4× 218 0.3× 1.1k 1.9× 144 0.4× 57 0.2× 43 1.8k

Countries citing papers authored by Jeffra K. Schaefer

Since Specialization
Citations

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

Fields of papers citing papers by Jeffra K. Schaefer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jeffra K. Schaefer. 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 Jeffra K. Schaefer. The network helps show where Jeffra K. Schaefer may publish in the future.

Co-authorship network of co-authors of Jeffra K. Schaefer

This figure shows the co-authorship network connecting the top 25 collaborators of Jeffra K. Schaefer. A scholar is included among the top collaborators of Jeffra K. Schaefer 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 Jeffra K. Schaefer. Jeffra K. Schaefer 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.
Schaefer, Jeffra K., et al.. (2023). Metabolic turnover of cysteine-related thiol compounds at environmentally relevant concentrations by Geobacter sulfurreducens. Frontiers in Microbiology. 13. 6 indexed citations
2.
Schaefer, Jeffra K., et al.. (2023). The Combined Effect of Hg(II) Speciation, Thiol Metabolism, and Cell Physiology on Methylmercury Formation by Geobacter sulfurreducens. Environmental Science & Technology. 57(18). 7185–7195. 10 indexed citations
3.
Poulin, Brett A., Zofia Baumann, Xiao Liu, et al.. (2021). Nutrient Inputs Stimulate Mercury Methylation by Syntrophs in a Subarctic Peatland. Frontiers in Microbiology. 12. 741523–741523. 15 indexed citations
4.
Goff, Jennifer L., Jeffra K. Schaefer, & Nathan Yee. (2021). Extracellular sulfite is protective against reactive oxygen species and antibiotic stress in Shewanella oneidensis MR‐1. Environmental Microbiology Reports. 13(3). 394–400. 2 indexed citations
5.
Wang, Yuwei, Sarah E. Janssen, Jeffra K. Schaefer, Nathan Yee, & John R. Reinfelder. (2020). Tracing the Uptake of Hg(II) in an Iron-Reducing Bacterium Using Mercury Stable Isotopes. Environmental Science & Technology Letters. 7(8). 573–578. 15 indexed citations
6.
Wang, Yuwei, et al.. (2020). Production of methylmercury by methanogens in mercury contaminated estuarine sediments. FEMS Microbiology Letters. 367(23). 18 indexed citations
7.
Xu, Jingying, Moritz Buck, Karin Eklöf, et al.. (2019). Mercury methylating microbial communities of boreal forest soils. Scientific Reports. 9(1). 518–518. 51 indexed citations
8.
Adediran, Gbotemi A., Van Liem‐Nguyen, Yu Song, et al.. (2019). Microbial Biosynthesis of Thiol Compounds: Implications for Speciation, Cellular Uptake, and Methylation of Hg(II). Environmental Science & Technology. 53(14). 8187–8196. 47 indexed citations
9.
Wang, Yuwei, Qiang Yu, Bhoopesh Mishra, et al.. (2018). Adsorption of Methylmercury ontoGeobacter bemidijensisBem. Environmental Science & Technology. 52(20). 11564–11572. 6 indexed citations
10.
Szczuka, Aleksandra, François M. M. Morel, & Jeffra K. Schaefer. (2015). Effect of Thiols, Zinc, and Redox Conditions on Hg Uptake in Shewanella oneidensis. Environmental Science & Technology. 49(12). 7432–7438. 41 indexed citations
11.
Schaefer, Jeffra K., Aleksandra Szczuka, & François M. M. Morel. (2014). Effect of Divalent Metals on Hg(II) Uptake and Methylation by Bacteria. Environmental Science & Technology. 48(5). 3007–3013. 83 indexed citations
12.
Schaefer, Jeffra K., Rose‐Marie Kronberg, François M. M. Morel, & Ulf Skyllberg. (2013). Detection of a key Hg methylation gene, hgcA , in wetland soils. Environmental Microbiology Reports. 6(5). 441–447. 84 indexed citations
13.
Schaefer, Jeffra K. & François M. M. Morel. (2009). High methylation rates of mercury bound to cysteine by Geobacter sulfurreducens. Nature Geoscience. 2(2). 123–126. 272 indexed citations
14.
Chadhain, Sinéad M. Ní, et al.. (2006). Analysis of mercuric reductase ( merA ) gene diversity in an anaerobic mercury‐contaminated sediment enrichment. Environmental Microbiology. 8(10). 1746–1752. 61 indexed citations
15.
Barkay, Tamar, Jeffra K. Schaefer, Alexandre J. Poulain, & Marc Amyot. (2005). Microbial transformations in the mercury geochemical cycle. GeCAS. 69(10). 6 indexed citations
16.
Schaefer, Jeffra K.. (2002). Leisingera methylohalidivorans gen. nov., sp. nov., a marine methylotroph that grows on methyl bromide. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY. 52(3). 851–859. 53 indexed citations
17.
Barkay, Tamar & Jeffra K. Schaefer. (2001). Metal and radionuclide bioremediation: issues, considerations and potentials. Current Opinion in Microbiology. 4(3). 318–323. 136 indexed citations
18.
Oremland, Ronald S., Philip R. Dowdle, Jonathan O. Sharp, et al.. (2000). Bacterial dissimilatory reduction of arsenate and sulfate in meromictic Mono Lake, California. Geochimica et Cosmochimica Acta. 64(18). 3073–3084. 117 indexed citations
19.
Laverman, Anniet M., Jodi Switzer Blum, Jeffra K. Schaefer, et al.. (1995). Growth of Strain SES-3 with Arsenate and Other Diverse Electron Acceptors. Applied and Environmental Microbiology. 61(10). 3556–3561. 152 indexed citations
20.
Rehácek, J & Jeffra K. Schaefer. (1977). Disintegration of microorganisms in an industrial horizontal mill of novel design. Biotechnology and Bioengineering. 19(10). 1523–1534. 21 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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