John W. Ejnik

764 total citations
19 papers, 599 citations indexed

About

John W. Ejnik is a scholar working on Radiological and Ultrasound Technology, Radiology, Nuclear Medicine and Imaging and Nutrition and Dietetics. According to data from OpenAlex, John W. Ejnik has authored 19 papers receiving a total of 599 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Radiological and Ultrasound Technology, 6 papers in Radiology, Nuclear Medicine and Imaging and 5 papers in Nutrition and Dietetics. Recurrent topics in John W. Ejnik's work include Radioactivity and Radon Measurements (10 papers), Radiation Dose and Imaging (6 papers) and Radioactive contamination and transfer (5 papers). John W. Ejnik is often cited by papers focused on Radioactivity and Radon Measurements (10 papers), Radiation Dose and Imaging (6 papers) and Radioactive contamination and transfer (5 papers). John W. Ejnik collaborates with scholars based in United States, France and Australia. John W. Ejnik's co-authors include Matthew M. Hamilton, C. Frank Shaw, David H. Petering, José A. Centeno, Todor I. Todorov, Melissa A. McDiarmid, Katherine S. Squibb, Florabel G. Mullick, Jiaquan Xu and Alexandra C. Miller and has published in prestigious journals such as The Science of The Total Environment, Biochemistry and Environmental Health Perspectives.

In The Last Decade

John W. Ejnik

19 papers receiving 576 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John W. Ejnik United States 14 216 213 164 137 106 19 599
Robert A. Bulman Hungary 17 86 0.4× 122 0.6× 79 0.5× 132 1.0× 117 1.1× 68 843
Vera Höllriegl Germany 19 357 1.7× 102 0.5× 190 1.2× 215 1.6× 266 2.5× 65 992
Stéphane Grison France 18 262 1.2× 177 0.8× 113 0.7× 247 1.8× 115 1.1× 55 770
Olivia Delissen France 16 243 1.1× 208 1.0× 89 0.5× 142 1.0× 58 0.5× 21 583
N. D. Priest United Kingdom 12 148 0.7× 185 0.9× 148 0.9× 136 1.0× 100 0.9× 28 665
F. W. Bruenger United States 17 156 0.7× 48 0.2× 53 0.3× 381 2.8× 189 1.8× 70 741
Yukio Takizawa Japan 14 74 0.3× 327 1.5× 71 0.4× 74 0.5× 180 1.7× 65 791
R.J. Talbot United Kingdom 14 81 0.4× 216 1.0× 104 0.6× 120 0.9× 91 0.9× 40 759
H.S. Dang India 14 232 1.1× 85 0.4× 81 0.5× 97 0.7× 136 1.3× 40 490
Natalie Page United States 9 214 1.0× 101 0.5× 29 0.2× 163 1.2× 75 0.7× 23 677

Countries citing papers authored by John W. Ejnik

Since Specialization
Citations

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

Fields of papers citing papers by John W. Ejnik

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John W. Ejnik

This figure shows the co-authorship network connecting the top 25 collaborators of John W. Ejnik. A scholar is included among the top collaborators of John W. Ejnik 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 W. Ejnik. John W. Ejnik is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

19 of 19 papers shown
1.
Todorov, Todor I., John W. Ejnik, Hanna Xu, et al.. (2012). Uranium quantification in semen by inductively coupled plasma mass spectrometry. Journal of Trace Elements in Medicine and Biology. 27(1). 2–6. 4 indexed citations
2.
Ejnik, John W., C. Frank Shaw, & David H. Petering. (2010). Mechanism of Cadmium Ion Substitution in Mammalian Zinc Metallothionein and Metallothionein α Domain: Kinetic and Structural Studies. Inorganic Chemistry. 49(14). 6525–6534. 23 indexed citations
3.
Mustafi, Devkumar, Sean Foxley, Marvin W. Makinen, et al.. (2009). New vanadium-based magnetic resonance imaging probes: clinical potential for early detection of cancer. JBIC Journal of Biological Inorganic Chemistry. 14(8). 1187–1197. 25 indexed citations
4.
Todorov, Todor I., Hanna Xu, John W. Ejnik, et al.. (2008). Depleted uranium analysis in blood by inductively coupled plasma mass spectrometry. Journal of Analytical Atomic Spectrometry. 24(2). 189–193. 17 indexed citations
5.
Ejnik, John W., Todor I. Todorov, Florabel G. Mullick, et al.. (2005). Uranium analysis in urine by inductively coupled plasma dynamic reaction cell mass spectrometry. Analytical and Bioanalytical Chemistry. 382(1). 73–79. 42 indexed citations
6.
Todorov, Todor I., John W. Ejnik, Florabel G. Mullick, & José A. Centeno. (2005). Arsenic Speciation in Urine and Blood Reference Materials. Microchimica Acta. 151(3-4). 263–268. 27 indexed citations
7.
Gray, Marion, José A. Centeno, David Slaney, et al.. (2005). Environmental Exposure to Trace Elements and Prostate Cancer in Three New Zealand Ethnic Groups. International Journal of Environmental Research and Public Health. 2(3). 374–384. 31 indexed citations
8.
Heller, Jack M., et al.. (2004). Military Deployment Human Exposure Assessment: Urine Total and Isotopic Uranium Sampling Results. Journal of Toxicology and Environmental Health. 67(8-10). 697–714. 12 indexed citations
9.
Ejnik, John W., Amalia Muñoz, Eugene F. DeRose, C. Frank Shaw, & David H. Petering. (2003). Structural Consequences of Metallothionein Dimerization:  Solution Structure of the Isolated Cd4-α-Domain and Comparison with the Holoprotein Dimer. Biochemistry. 42(28). 8403–8410. 13 indexed citations
10.
Ejnik, John W., et al.. (2002). Folding pathway of apo-metallothionein induced by Zn2+, Cd2+ and Co2+. Journal of Inorganic Biochemistry. 88(2). 144–152. 73 indexed citations
11.
McClain, David E., Kimberly Benson, John W. Ejnik, et al.. (2002). Health Effects of Embedded Depleted Uranium. Military Medicine. 167(suppl_1). 117–119. 23 indexed citations
12.
McClain, David E., Thomas K. Dalton, John W. Ejnik, et al.. (2001). Biological effects of embedded depleted uranium (DU): summary of Armed Forces Radiobiology Research Institute research. The Science of The Total Environment. 274(1-3). 115–118. 48 indexed citations
13.
Ejnik, John W., et al.. (2001). Detection of Depleted Uranium in Biological Samples from Gulf War Veterans. Military Medicine. 166(suppl_2). 69–70. 11 indexed citations
14.
Ejnik, John W., Matthew M. Hamilton, Phillip R. Adams, & Alasdair J. Carmichael. (2000). Optimal sample preparation conditions for the determination of uranium in biological samples by kinetic phosphorescence analysis (KPA). Journal of Pharmaceutical and Biomedical Analysis. 24(2). 227–235. 28 indexed citations
15.
Ejnik, John W., A.J. Carmichael, Matthew M. Hamilton, et al.. (2000). Determination of the Isotopic Composition of Uranium in Urine by Inductively Coupled Plasma Mass Spectrometry. Health Physics. 78(2). 143–146. 54 indexed citations
16.
Ejnik, John W., Amalia Muñoz, Tong J. Gan, C. Frank Shaw, & David H. Petering. (1999). Interprotein metal ion exchange between cadmium-carbonic anhydrase and apo- or zinc-metallothionein. JBIC Journal of Biological Inorganic Chemistry. 4(6). 784–790. 36 indexed citations
17.
Miller, Alexandra C., William F. Blakely, D. R. Livengood, et al.. (1998). Transformation of human osteoblast cells to the tumorigenic phenotype by depleted uranium-uranyl chloride.. Environmental Health Perspectives. 106(8). 465–471. 106 indexed citations
18.
Miller, Alexandra C., William F. Blakely, D. R. Livengood, et al.. (1998). Transformation of Human Osteoblast Cells to the Tumorigenic Phenotype by Depleted Uranium-Uranyl Chloride. Environmental Health Perspectives. 106(8). 465–465. 7 indexed citations
19.
Hamilton, Matthew M., John W. Ejnik, & Alasdair J. Carmichael. (1997). Uranium reactions with hydrogen peroxide studied by EPR–spin trapping with DMPO †. Journal of the Chemical Society Perkin Transactions 2. 2491–2494. 19 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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