R. R. Johnson

3.5k total citations
103 papers, 2.6k citations indexed

About

R. R. Johnson is a scholar working on Agronomy and Crop Science, Plant Science and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, R. R. Johnson has authored 103 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 57 papers in Agronomy and Crop Science, 31 papers in Plant Science and 10 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in R. R. Johnson's work include Ruminant Nutrition and Digestive Physiology (37 papers), Crop Yield and Soil Fertility (18 papers) and Reproductive Physiology in Livestock (8 papers). R. R. Johnson is often cited by papers focused on Ruminant Nutrition and Digestive Physiology (37 papers), Crop Yield and Soil Fertility (18 papers) and Reproductive Physiology in Livestock (8 papers). R. R. Johnson collaborates with scholars based in United States, Romania and United Kingdom. R. R. Johnson's co-authors include B. A. Dehority, F. N. Owens, K. El‐Shazly, R. J. Lambert, K. E. McClure, J. S. Boyer, Dale N. Moss, J. R. Males, N. A. Cole and R. G. Hoeft and has published in prestigious journals such as Journal of Clinical Oncology, Cancer Research and Journal of Agricultural and Food Chemistry.

In The Last Decade

R. R. Johnson

93 papers receiving 2.2k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
R. R. Johnson United States	30	1.6k	1.0k	470	322	263	103	2.6k
A.M. van Vuuren Netherlands	36	3.3k 2.1×	352 0.3×	1.3k 2.8×	664 2.1×	294 1.1×	102	4.0k
Luming Ding China	28	1.0k 0.6×	298 0.3×	419 0.9×	316 1.0×	563 2.1×	87	2.5k
D.R. Waldo United States	26	2.2k 1.4×	268 0.3×	940 2.0×	616 1.9×	106 0.4×	66	2.5k
Bahman Shafii United States	31	582 0.4×	1.2k 1.1×	307 0.7×	95 0.3×	557 2.1×	136	2.7k
Angela R. Moss United Kingdom	18	1.7k 1.1×	239 0.2×	355 0.8×	361 1.1×	178 0.7×	71	2.1k
J. Bertilsson Sweden	22	1.4k 0.9×	301 0.3×	400 0.9×	279 0.9×	271 1.0×	158	2.0k
J.C. MacRae United Kingdom	35	2.7k 1.7×	488 0.5×	1.1k 2.4×	852 2.6×	366 1.4×	105	4.1k
Long Cheng Australia	23	584 0.4×	249 0.2×	285 0.6×	370 1.1×	326 1.2×	118	1.6k
Jean‐Louis Peyraud France	28	1.6k 1.0×	273 0.3×	658 1.4×	343 1.1×	103 0.4×	73	2.4k
D.J. Humphries United Kingdom	27	1.5k 0.9×	168 0.2×	711 1.5×	407 1.3×	178 0.7×	102	2.4k

Countries citing papers authored by R. R. Johnson

Since Specialization

Citations

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

Fields of papers citing papers by R. R. Johnson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. R. Johnson

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

All Works

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20 of 20 papers shown

Johnson, R. R., Veronika Shabanova, & Melissa L. Langhan. (2025). Insights into Medical Student Pediatric Intensive Care Unit Rotations in Developing Essential Skills for Pediatric Residency. Medical Science Educator. 35(3). 1195–1201.

Johnson, R. R., John Rieuwerts, & Sean Comber. (2021). How does a country’s developmental status affect ambient air quality with respect to particulate matter?. International Journal of Environmental Science and Technology. 18(11). 3395–3406. 7 indexed citations

Gold, Garry E., et al.. (2012). Simulation and Design of a 70 MeV Cyclotron RF System. Presented at. 3269–3271.

Ünal, Bülent, et al.. (2008). Models for predicting non-sentinel lymph node positivity in sentinel node positive breast cancer: the importance of scoring system. International Journal of Clinical Practice. 62(11). 1785–1791. 26 indexed citations

Feinstein, Trevor, Michael K. Gibson, P. Savvides, et al.. (2008). Pemetrexed (P) and bevacizumab (B) in patients (pts) with recurrent or metastatic head and neck squamous cell carcinoma (HNSCC): updated results of a phase II trial. Journal of Clinical Oncology. 26(15_suppl). 6069–6069. 13 indexed citations

Evrensel, Türkkan, et al.. (2007). The predicted probability of having positive non-sentinel lymph nodes in patients who received neoadjuvant chemotherapy for large operable breast cancer. International Journal of Clinical Practice. 62(9). 1379–1382. 12 indexed citations

Beriwal, Sushil, et al.. (2007). Accelerated Partial Breast Irradiation (APBI) With MammoSite™: An Interim Outcome Analysis With Two Years Follow-up. International Journal of Radiation Oncology*Biology*Physics. 69(3). S235–S236. 2 indexed citations

Williams, A.E., et al.. (2005). Automatic Measurement of Filter Coupling Parameters. 83. 418–420. 5 indexed citations

Grulke, N. E., et al.. (2003). Variation in morphological and biochemical O3 injury attributes of mature Jeffrey pine within canopies and between microsites. Tree Physiology. 23(13). 923–929. 16 indexed citations

10.

Werth, James L., Judith R. Gordon, & R. R. Johnson. (2002). Psychosocial issues near the end of life. Aging & Mental Health. 6(4). 402–412. 53 indexed citations

11.

Dash, Nihar Ranjan, et al.. (1999). Usefulness of tissue marker clips in patients undergoing neoadjuvant chemotherapy for breast cancer.. American Journal of Roentgenology. 173(4). 911–917. 56 indexed citations

12.

Easmon, C S, et al.. (1994). Study leave for postgraduate trainees.. PubMed. 51(6). 308–9.

13.

Johnson, R. R.. (1989). Do politicians understand the needs of postgraduate medicine?. PubMed. 42(5). 422–3. 1 indexed citations

14.

Johnson, R. R.. (1978). Growth and Yield of Maize as Affected by Early‐Season Defoliation¹. Agronomy Journal. 70(6). 995–998. 24 indexed citations

15.

Johnson, R. R. & C. M. Brown. (1976). Chemical Control of Pollination in Wheat and Oats¹. Crop Science. 16(4). 584–587. 7 indexed citations

16.

Johnson, R. R. & R. J. Lambert. (1975). Tassel trivia: little-known facts about corn. 3 indexed citations

17.

Butterbaugh, Jeffery W. & R. R. Johnson. (1974). Nutritive Value of Acid Hydrolyzed Wood Residue in Ruminant Rations. Journal of Animal Science. 38(2). 394–403. 8 indexed citations

18.

Johnson, R. R., et al.. (1969). Effect of Ensiling Time on Distribution and Losses of Nitrogen in Corn Silage Treated with Limestone and NPN. Journal of Animal Science. 29(1). 57–61. 7 indexed citations

19.

El‐Shazly, K., B. A. Dehority, & R. R. Johnson. (1961). Effect of starch on the digestion of cellulose in vitro and in vivo by rumen microorganisms.. Journal of Animal Science. 20. 268–273. 154 indexed citations

20.

Dehority, B. A. & R. R. Johnson. (1960). Effect of ball-milling upon in vitro digestibility of cellulose of mature forages.. Journal of Animal Science. 19(4). 2 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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