Maurice Shamma

7.1k citations
313 papers · 5.2k indexed · h-index 33
Topics
Chemical synthesis and alkaloids (93 papers)Berberine and alkaloids research (81 papers)Alkaloids: synthesis and pharmacology (78 papers)

In The Last Decade

Maurice Shamma

307 papers receiving 4.8k citations

Peers

Maurice Shamma
Comparison fields: 5 of 114
  • Organic Chemistry 2.9k
  • Molecular Biology 1.7k
  • Pharmacology 1.3k
  • Pharmacology 1.2k
  • Biochemistry 957
Replace Hiroshi Kakisawa with:
Hiroshi Kakisawa Japan
Robert B. Bates United States
Takenori Kusumi Japan
Ernest Wenkert United States
Toshio Honda Japan
Alan J. Freyer United States
Joachim Stöckigt Germany
Joseph D. Connolly United Kingdom
Heebyung Chai United States
Stephen G. Pyne Australia
Maurice Shamma relative to Hiroshi Kakisawa Japan Hiroshi Kakisawa's profile →
Citations per field
00.5×2.9×
Hiroshi Kakisawa · 1×
Citations per year

Countries citing papers authored by Maurice Shamma

Since Specialization
Citations

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

Fields of papers citing papers by Maurice Shamma

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Maurice Shamma

This figure shows the co-authorship network connecting the top 25 collaborators of Maurice Shamma. A scholar is included among the top collaborators of Maurice Shamma 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 Maurice Shamma. Maurice Shamma 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
#WorkIndexed citations
1
The Alkaloids of Machilus Duthei
0
2 4
3 4
4 7
5
, A. Brossi (Ed.). Academic Press, Orlando, FL (1984), , cm. ISBN 0-12-469523-X. $85.00 (£ 59.50)
1
6 179
7 13
8 11
9 6
10 4
11 3
12 3
13 9
14 2
15 6
16 77
17 0
18 3
19 10
20 8

About Maurice Shamma

Maurice Shamma is a scholar working on Pharmacology, Biochemistry and Organic Chemistry, having authored 313 papers that have together received 5.2k indexed citations. Recurring topics across this work include Chemical synthesis and alkaloids (93 papers), Berberine and alkaloids research (81 papers) and Alkaloids: synthesis and pharmacology (78 papers). The work is most often cited by research in Pharmacology (1.2k citations), Biochemistry (957 citations) and Organic Chemistry (2.9k citations). Maurice Shamma has collaborated with scholars based in United States, Chile and Pakistan. Frequent co-authors include Alan J. Freyer, Jerome L. Moniot, Víctor Fajardo, Hélène Guinaudeau, Belkıs Gözler, Emir Valencia, Gábor Blaskó, Tekant Gözler, Saddam Hussain and Eugene E. Van Tamelen. Their work appears in journals such as Chemical Reviews, Journal of the American Chemical Society and Journal of Medicinal Chemistry.

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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