Sylvia Johnson

511 total citations
14 papers, 280 citations indexed

About

Sylvia Johnson is a scholar working on Pharmacology, Organic Chemistry and Oncology. According to data from OpenAlex, Sylvia Johnson has authored 14 papers receiving a total of 280 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Pharmacology, 4 papers in Organic Chemistry and 3 papers in Oncology. Recurrent topics in Sylvia Johnson's work include Microbial Natural Products and Biosynthesis (7 papers), Cancer Treatment and Pharmacology (3 papers) and Chemical Synthesis and Analysis (2 papers). Sylvia Johnson is often cited by papers focused on Microbial Natural Products and Biosynthesis (7 papers), Cancer Treatment and Pharmacology (3 papers) and Chemical Synthesis and Analysis (2 papers). Sylvia Johnson collaborates with scholars based in South Africa, United States and France. Sylvia Johnson's co-authors include Newell O. Sjolander, J. R. D. McCormick, Parimal Roy, A. S. Dhillon, L. H. Lauerman, Barry D. Schoub, Jo McAnerney, Albert P. Doerschuk, P. Miller and Nigel K. Blackburn and has published in prestigious journals such as Journal of the American Chemical Society, Journal of Bacteriology and Journal of Medical Virology.

In The Last Decade

Sylvia Johnson

14 papers receiving 241 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sylvia Johnson South Africa 11 87 82 69 52 43 14 280
H. Lundbeck Sweden 11 19 0.2× 92 1.1× 41 0.6× 50 1.0× 98 2.3× 23 361
A. L. DAVISON United Kingdom 12 59 0.7× 192 2.3× 132 1.9× 31 0.6× 74 1.7× 16 461
J. M. Broughall United Kingdom 8 82 0.9× 67 0.8× 71 1.0× 29 0.6× 78 1.8× 14 324
Pintip Pongpech Thailand 12 50 0.6× 106 1.3× 62 0.9× 63 1.2× 80 1.9× 24 319
A Kirshbaum United States 7 147 1.7× 51 0.6× 34 0.5× 25 0.5× 22 0.5× 27 299
P Arca Spain 8 48 0.6× 272 3.3× 175 2.5× 133 2.6× 30 0.7× 9 507
S T Selepak United States 8 72 0.8× 81 1.0× 21 0.3× 71 1.4× 112 2.6× 10 392
Leonard C. Howard United States 5 148 1.7× 148 1.8× 11 0.2× 63 1.2× 158 3.7× 7 387
S Kwan Malaysia 6 66 0.8× 138 1.7× 55 0.8× 20 0.4× 48 1.1× 6 301
Hyun‐Ju Song South Korea 12 27 0.3× 86 1.0× 120 1.7× 28 0.5× 74 1.7× 35 359

Countries citing papers authored by Sylvia Johnson

Since Specialization
Citations

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

Fields of papers citing papers by Sylvia Johnson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sylvia Johnson

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

All Works

14 of 14 papers shown
1.
Roy, Parimal, et al.. (2002). Results of Salmonella Isolation from Poultry Products, Poultry, Poultry Environment, and Other Characteristics. Avian Diseases. 46(1). 17–24. 82 indexed citations
2.
Schoub, Barry D., et al.. (1992). Low antibody avidity in elderly chickenpox patients. Journal of Medical Virology. 37(2). 113–115. 19 indexed citations
3.
Schoub, Barry D., Sylvia Johnson, & Jo McAnerney. (1992). Observations of subacute sclerosing panencephalitis in South Africa. Transactions of the Royal Society of Tropical Medicine and Hygiene. 86(5). 550–551. 5 indexed citations
4.
Schoub, Barry D., Sylvia Johnson, Johanna M. McAnerney, et al.. (1990). Measles, mumps and rubella immunization at nine months in a developing country. The Pediatric Infectious Disease Journal. 9(4). 263–267. 21 indexed citations
5.
Schoub, Barry D., et al.. (1987). Absence of HIV infection in prostitutes and women attending sexually-transmitted disease clinics in South Africa. Transactions of the Royal Society of Tropical Medicine and Hygiene. 81(5). 874–875. 4 indexed citations
6.
Schoub, Barry D., et al.. (1985). Epidemic Coxsackie B virus infection in Johannesburg, South Africa. Journal of Hygiene. 95(2). 447–455. 26 indexed citations
7.
McCormick, J. R. D., et al.. (1968). Biosynthesis of tetracyclines. XI. Methylanthrone analog of protetrone. Journal of the American Chemical Society. 90(25). 7127–7129. 11 indexed citations
8.
McCormick, J. R. D., et al.. (1968). Biosynthesis of the tetracyclines. IX. 4-Aminodedimethylaminoanhydrodemethylchlortetracycline from a mutant of Streptomyces aureofaciens. Journal of the American Chemical Society. 90(8). 2201–2202. 15 indexed citations
9.
McCormick, J. R. D., et al.. (1965). Biosynthesis of the Tetracyclines. VII.1 4-Hydroxy-6-methylpretetramid, an Intermediate Accumulated by a Blocked Mutant of Streptomyces aureofaciens2. Journal of the American Chemical Society. 87(8). 1793–1794. 18 indexed citations
10.
McCormick, J. R. D., Jules Reichenthal, Sylvia Johnson, & Newell O. Sjolander. (1963). Biosynthesis of the Tetracyclines. VI. Total Synthesis of a Naphthacenic Precursor: 1,3,10,11,12-Pentahydroxynaphthacene-2-Carboxamide. Journal of the American Chemical Society. 85(11). 1694–1695. 8 indexed citations
11.
McCormick, J. R. D., Sylvia Johnson, & Newell O. Sjolander. (1963). Biosynthesis of the Tetracyclines. V. Naphthacenic Precursors. Journal of the American Chemical Society. 85(11). 1692–1694. 12 indexed citations
12.
McCormick, J. R. D., et al.. (1962). Biosynthesis of the Tetracyclines. IV.1 Biological Rehydration of the 5a,6-Anhydrotetracyclines. Journal of the American Chemical Society. 84(15). 3023–3025. 11 indexed citations
13.
Miller, P., et al.. (1960). COSYNTHETIC FACTOR I, A FACTOR INVOLVED IN HYDROGEN-TRANSFER IN STREPTOMYCES AUREOFACIENS. Journal of the American Chemical Society. 82(18). 5002–5003. 29 indexed citations
14.
McCormick, J. R. D., Newell O. Sjolander, Sylvia Johnson, & Albert P. Doerschuk. (1959). BIOSYNTHESIS OF TETRACYCLINES. Journal of Bacteriology. 77(4). 475–477. 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by H. Lundbeck Breakdown of academic impact, for papers by A. L. DAVISON Breakdown of academic impact, for papers by J. M. Broughall Breakdown of academic impact, for papers by Pintip Pongpech Breakdown of academic impact, for papers by A Kirshbaum Breakdown of academic impact, for papers by P Arca Breakdown of academic impact, for papers by S T Selepak Breakdown of academic impact, for papers by Leonard C. Howard Breakdown of academic impact, for papers by S Kwan Breakdown of academic impact, for papers by Hyun‐Ju Song
Rankless by CCL
2026