R G Ham

2.3k total citations · 1 hit paper
15 papers, 1.9k citations indexed

About

R G Ham is a scholar working on Molecular Biology, Genetics and Organic Chemistry. According to data from OpenAlex, R G Ham has authored 15 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Molecular Biology, 3 papers in Genetics and 2 papers in Organic Chemistry. Recurrent topics in R G Ham's work include Viral Infectious Diseases and Gene Expression in Insects (3 papers), Neonatal Respiratory Health Research (2 papers) and Congenital Anomalies and Fetal Surgery (2 papers). R G Ham is often cited by papers focused on Viral Infectious Diseases and Gene Expression in Insects (3 papers), Neonatal Respiratory Health Research (2 papers) and Congenital Anomalies and Fetal Surgery (2 papers). R G Ham collaborates with scholars based in United States, Ireland and Belgium. R G Ham's co-authors include Wallace L. McKeehan, Martha R. Stampfer, William J. Bettger, Ben J. Walthall, Steven T. Boyce, Theodore T. Puck, Ravi S. Menon, Conor O’Byrne, Kimon Andreas G. Karatzas and Conor Feehily and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and The Journal of Cell Biology.

In The Last Decade

R G Ham

12 papers receiving 1.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

An improved nutrient solution for diploid Chinese hamster and human cell lines

1963 801 citations R G Ham Experimental Cell Research profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
R G Ham United States	11	1.0k	312	307	192	166	15	1.9k
C J Edgell United States	11	873 0.9×	282 0.9×	171 0.6×	246 1.3×	76 0.5×	13	2.3k
Jean‐Philippe Salier France	27	1.1k 1.1×	299 1.0×	242 0.8×	282 1.5×	84 0.5×	66	2.4k
J A Rodkey United States	23	1.3k 1.3×	182 0.6×	266 0.9×	169 0.9×	48 0.3×	26	2.3k
Bradley A. Arrick United States	20	1.8k 1.7×	602 1.9×	243 0.8×	248 1.3×	138 0.8×	35	2.7k
Ian Blench United Kingdom	13	1.2k 1.2×	175 0.6×	274 0.9×	177 0.9×	109 0.7×	14	1.9k
Christoph C. Geilen Germany	33	1.8k 1.8×	544 1.7×	170 0.6×	225 1.2×	142 0.9×	106	3.3k
Barbara Corcoran United States	15	1.5k 1.5×	406 1.3×	154 0.5×	182 0.9×	60 0.4×	17	2.6k
Renate Hellmiss United States	11	1.4k 1.3×	205 0.7×	400 1.3×	184 1.0×	54 0.3×	11	2.8k
Aurelian Radu United States	18	1.2k 1.2×	169 0.5×	221 0.7×	122 0.6×	81 0.5×	33	1.9k
James A. Fornwald United States	20	1.6k 1.6×	386 1.2×	198 0.6×	97 0.5×	57 0.3×	25	2.5k

Countries citing papers authored by R G Ham

Since Specialization

Citations

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

Fields of papers citing papers by R G Ham

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R G Ham

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

All Works

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15 of 15 papers shown

Ham, R G, et al.. (2025). A Practical Synthetic Route to Cinnolines: Application to the Design and Synthesis of RSV NNI Inhibitor JNJ‐8003 Analogues. Chemistry - A European Journal. 31(16). e202404479–e202404479.

Ham, R G, et al.. (2024). Ab initio insight into furan conversion to levulinate ester in reaction with methylal and methanol. Materials Advances. 5(13). 5595–5605.

Jong, Un-Gi, et al.. (2024). Compressive strain-induced enhancement of thermoelectric performance in lead-free halide double perovskites K2SnX6 (X = I, Br, Cl). Applied Physics Letters. 125(4). 1 indexed citations

O’Byrne, Conor, Conor Feehily, R G Ham, & Kimon Andreas G. Karatzas. (2010). A modified rapid enzymatic microtiter plate assay for the quantification of intracellular γ-aminobutyric acid and succinate semialdehyde in bacterial cells. Journal of Microbiological Methods. 84(1). 137–139. 19 indexed citations

Menon, Ravi S., et al.. (1991). RT-PCR artifacts from processed pseudogenes.. Genome Research. 1(1). 70–71. 24 indexed citations

Ham, R G, et al.. (1984). Serum-free growth of human mammary epithelial cells: rapid clonal growth in defined medium and extended serial passage with pituitary extract.. Proceedings of the National Academy of Sciences. 81(17). 5435–5439. 373 indexed citations

Bettger, William J., Steven T. Boyce, Ben J. Walthall, & R G Ham. (1981). Rapid clonal growth and serial passage of human diploid fibroblasts in a lipid-enriched synthetic medium supplemented with epidermal growth factor, insulin, and dexamethasone.. Proceedings of the National Academy of Sciences. 78(9). 5588–5592. 119 indexed citations

Bettger, William J. & R G Ham. (1981). Effects of non-steroidal anti-inflammatory agents and antioxidants on the clonal growth of human diploid fibroblasts. Progress in Lipid Research. 20. 265–268. 13 indexed citations

Ham, R G. (1980). Dermal fibroblasts.. PubMed. 21A. 255–76. 10 indexed citations

10.

McKeehan, Wallace L. & R G Ham. (1978). Calcium and magnesium ions and the regulation of multiplication in normal and transformed cells. Nature. 275(5682). 756–758. 81 indexed citations

11.

McKeehan, Wallace L. & R G Ham. (1976). Stimulation of clonal growth of normal fibroblasts with substrata coated with basic polymers.. The Journal of Cell Biology. 71(3). 727–734. 220 indexed citations

12.

McKeehan, Wallace L., et al.. (1976). Selenium is an essential trace nutrient for growth of WI-38 diploid human fibroblasts.. Proceedings of the National Academy of Sciences. 73(6). 2023–2027. 203 indexed citations

13.

Ham, R G. (1963). An improved nutrient solution for diploid Chinese hamster and human cell lines. Experimental Cell Research. 29(3). 515–526. 801 indexed citations breakdown →

14.

Ham, R G. (1962). Clonal growth of diploid Chinese hamster cells in a synthetic medium supplemented with purified protein fractions. Experimental Cell Research. 28(3). 489–500. 33 indexed citations

15.

Ham, R G & Theodore T. Puck. (1962). A Regulated Incubator Controlling CO2 Concentration, Humidity and Temperature for Use in Animal Cell Culture.. Experimental Biology and Medicine. 111(1). 67–71. 20 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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