Marsha I. Sheppard

2.4k total citations
72 papers, 1.8k citations indexed

About

Marsha I. Sheppard is a scholar working on Global and Planetary Change, Radiological and Ultrasound Technology and Inorganic Chemistry. According to data from OpenAlex, Marsha I. Sheppard has authored 72 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Global and Planetary Change, 21 papers in Radiological and Ultrasound Technology and 19 papers in Inorganic Chemistry. Recurrent topics in Marsha I. Sheppard's work include Radioactive contamination and transfer (33 papers), Radioactivity and Radon Measurements (21 papers) and Radioactive element chemistry and processing (19 papers). Marsha I. Sheppard is often cited by papers focused on Radioactive contamination and transfer (33 papers), Radioactivity and Radon Measurements (21 papers) and Radioactive element chemistry and processing (19 papers). Marsha I. Sheppard collaborates with scholars based in Canada, France and United States. Marsha I. Sheppard's co-authors include D. H. Thibault, Steve Sheppard, B. Sanipelli, S. C. Sheppard, Guillaume Echevarria, Jean‐Louis Morel, J. C. Tait, Paul A. Smith, Cynthia A. Grant and R. De Jong and has published in prestigious journals such as Environmental Science & Technology, Environmental Health Perspectives and Soil Science Society of America Journal.

In The Last Decade

Marsha I. Sheppard

69 papers receiving 1.7k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Marsha I. Sheppard Canada 24 751 710 584 454 231 72 1.8k
G. Shaw United Kingdom 28 1.2k 1.6× 841 1.2× 479 0.8× 352 0.8× 220 1.0× 117 2.2k
Yves Thiry France 28 1.2k 1.6× 819 1.2× 522 0.9× 417 0.9× 343 1.5× 85 2.2k
Anna Rigol Spain 28 618 0.8× 552 0.8× 497 0.9× 838 1.8× 698 3.0× 77 2.6k
M. Vidal Spain 29 881 1.2× 863 1.2× 724 1.2× 1.3k 2.8× 701 3.0× 95 3.4k
Gi Hoon Hong South Korea 28 1.0k 1.4× 658 0.9× 255 0.4× 312 0.7× 280 1.2× 114 2.9k
U. Sansone Italy 23 750 1.0× 744 1.0× 274 0.5× 126 0.3× 82 0.4× 69 1.3k
V. D. Puranik India 24 404 0.5× 804 1.1× 151 0.3× 333 0.7× 630 2.7× 88 1.9k
R. E. Wildung United States 18 335 0.4× 138 0.2× 349 0.6× 521 1.1× 144 0.6× 44 1.9k
Jota Kanda Japan 28 759 1.0× 295 0.4× 324 0.6× 118 0.3× 74 0.3× 110 2.7k
E.A. Bondietti United States 17 404 0.5× 230 0.3× 178 0.3× 183 0.4× 98 0.4× 34 1.1k

Countries citing papers authored by Marsha I. Sheppard

Since Specialization
Citations

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

Fields of papers citing papers by Marsha I. Sheppard

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Marsha I. Sheppard. 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 Marsha I. Sheppard. The network helps show where Marsha I. Sheppard may publish in the future.

Co-authorship network of co-authors of Marsha I. Sheppard

This figure shows the co-authorship network connecting the top 25 collaborators of Marsha I. Sheppard. A scholar is included among the top collaborators of Marsha I. Sheppard 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 Marsha I. Sheppard. Marsha I. Sheppard 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.
Sheppard, Steve, et al.. (2009). Risk Indicator for Agricultural Inputs of Trace Elements to Canadian Soils. Journal of Environmental Quality. 38(3). 919–932. 63 indexed citations
2.
Sheppard, Steve, et al.. (2008). Primordial radionuclides in Canadian background sites: secular equilibrium and isotopic differences. Journal of Environmental Radioactivity. 99(6). 933–946. 50 indexed citations
3.
Sheppard, Marsha I., Steve Sheppard, & Cynthia A. Grant. (2007). Solid/liquid partition coefficients to model trace element critical loads for agricultural soils in Canada. Canadian Journal of Soil Science. 87(Special Issue). 189–201. 31 indexed citations
4.
Sheppard, Steve, et al.. (2005). Conceptual approaches for the development of dynamic specific activity models of 14C transfer from surface water to humans. Journal of Environmental Radioactivity. 87(1). 32–51. 13 indexed citations
5.
Sheppard, S. C., Marsha I. Sheppard, & F. Siclet. (2005). Parameterization of a dynamic specific activity model of 14C transfer from surface water-to-humans. Journal of Environmental Radioactivity. 87(1). 15–31. 9 indexed citations
6.
Sheppard, Steve, et al.. (2004). Derivation of ecotoxicity thresholds for uranium. Journal of Environmental Radioactivity. 79(1). 55–83. 193 indexed citations
7.
Echevarria, Guillaume, Marsha I. Sheppard, & Jean‐Louis Morel. (2001). Effect of pH on the sorption of uranium in soils. Journal of Environmental Radioactivity. 53(2). 257–264. 142 indexed citations
8.
9.
Elrick, D. E., et al.. (1997). An Analysis of Surface Accumulation of Previously Distributed Chemicals during Steady‐State Evaporation. Journal of Environmental Quality. 26(3). 883–888. 3 indexed citations
10.
Sheppard, S. C., B. D. Amiro, Marsha I. Sheppard, et al.. (1994). Carbon-14 in the biosphere: Modelling and supporting research for the Canadian nuclear fuel waste management program. Waste Management. 14(5). 445–456. 14 indexed citations
11.
Sheppard, Marsha I.. (1993). Heavy Metals in the Environment. Journal of Environmental Quality. 22(1). 213–213. 56 indexed citations
12.
Sheppard, Marsha I., et al.. (1993). Performance of a soil model in predicting consequences of smelter emissions, including abatement scenarios. Journal of Soil Contamination. 2(3). 281–313. 3 indexed citations
13.
Thibault, D. H. & Marsha I. Sheppard. (1992). A disposable system for soil pore‐water extraction by centrifugation. Communications in Soil Science and Plant Analysis. 23(13-14). 1629–1641. 53 indexed citations
14.
Sheppard, Marsha I.. (1992). The soil submodel, SCEMR1, for the assessment of Canada's nuclear fuel waste management concept. 12 indexed citations
15.
Sheppard, Marsha I. & D. H. Thibault. (1992). Desorption and Extraction of Selected Heavy Metals from Soils. Soil Science Society of America Journal. 56(2). 415–423. 97 indexed citations
16.
Sheppard, Marsha I., et al.. (1991). A linear sorption/dynamic water flow model applied to the results of a four-year soil core study. Ecological Modelling. 55(3-4). 175–201. 10 indexed citations
17.
Sheppard, Marsha I., S. C. Sheppard, & B. D. Amiro. (1991). Mobility and Plant Uptake of Inorganic 14C and 14C-labelled Pcb in Soils of High and Low Retention. Health Physics. 61(4). 481–492. 30 indexed citations
18.
Sheppard, Marsha I., et al.. (1990). Soil-to-plant transfer of carbon-14 for environmental assessment of radioactive waste repositories. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 6(1). 179–179. 2 indexed citations
19.
Sheppard, Marsha I., D. H. Thibault, & J. H. Mitchell. (1987). Element Leaching and Capillary Rise in Sandy Soil Cores: Experimental Results. Journal of Environmental Quality. 16(3). 273–284. 30 indexed citations
20.
Sheppard, Marsha I. & D. H. Thibault. (1984). Natural uranium concentrations of native plants over a low-grade ore body. Canadian Journal of Botany. 62(5). 1069–1075. 17 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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