Peter J. Machin

1.3k total citations · 1 hit paper
13 papers, 990 citations indexed

About

Peter J. Machin is a scholar working on Organic Chemistry, Ecology, Evolution, Behavior and Systematics and Molecular Biology. According to data from OpenAlex, Peter J. Machin has authored 13 papers receiving a total of 990 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Organic Chemistry, 5 papers in Ecology, Evolution, Behavior and Systematics and 3 papers in Molecular Biology. Recurrent topics in Peter J. Machin's work include Synthesis and biological activity (4 papers), Botany and Geology in Latin America and Caribbean (4 papers) and Fern and Epiphyte Biology (3 papers). Peter J. Machin is often cited by papers focused on Synthesis and biological activity (4 papers), Botany and Geology in Latin America and Caribbean (4 papers) and Fern and Epiphyte Biology (3 papers). Peter J. Machin collaborates with scholars based in United Kingdom, Australia and United States. Peter J. Machin's co-authors include I. B. R. Duncan, Antonin Kröhn, Noel A. Roberts, Anne V. Broadhurst, Gareth J. Thomas, Debra L. Taylor, John Kay, Alison J. Ritchie, Sally Redshaw and Robert Lambert and has published in prestigious journals such as Science, Journal of Medicinal Chemistry and Biochemical Pharmacology.

In The Last Decade

Peter J. Machin

13 papers receiving 927 citations

Hit Papers

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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.

Rational Design of Peptide-Based HIV Proteinase Inhibitors

1990 726 citations Noel A. Roberts, Joseph A. Martin et al. Science profile →

Peers

Countries citing papers authored by Peter J. Machin

Since Specialization

Citations

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

Fields of papers citing papers by Peter J. Machin

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Peter J. Machin. 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 Peter J. Machin. The network helps show where Peter J. Machin may publish in the future.

Co-authorship network of co-authors of Peter J. Machin

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

All Works

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13 of 13 papers shown

#	Work	Indexed citations
1	Demographics, pollination syndrome and conservation status of Macrozamia platyrhachis (Zamiaceae), a geographically restricted Queensland cycad 2008 ·Australian Journal of Botany ·Irene Terry, Paul I. Forster, Christopher Moore, Ryan Roemer, Peter J. Machin	33
2	Pollination of Australian Macrozamia cycads (Zamiaceae): effectiveness and behavior of specialist vectors in a dependent mutualism 2005 ·American Journal of Botany ·L. Irene Terry, Gimme H. Walter, John S. Donaldson, (unknown), Paul I. Forster, Peter J. Machin	60
3	Pollination ecology of the Australian cycad Lepidozamia peroffskyana (Zamiaceae) 2004 ·Australian Journal of Botany ·John A. Hall, Gimme H. Walter, Dana M. Bergstrom, Peter J. Machin	41
4	Insects Associated with Reproductive Structures of Cycads in Queensland and Northeast New South Wales, Australia 1994 ·Biotropica ·Paul I. Forster, Peter J. Machin, Laurence A. Mound, (unknown)	36
5	Romazarit. A potential disease-modifying antirheumatic drug 1991 ·Journal of Medicinal Chemistry ·Christopher R. Self, (unknown), Peter J. Machin, (unknown), C. E. Smithen, (unknown), (unknown), David P. Bloxham, (unknown)	11
6	Rational Design of Peptide-Based HIV Proteinase Inhibitors breakdown → 1990 ·Science ·Noel A. Roberts, Joseph A. Martin, Derek Kinchington, Anne V. Broadhurst, Jane Craig, I. B. R. Duncan, S. Galpin, B.K. Handa, John Kay, Antonin Kröhn, Robert Lambert, John H. Merrett, John Mills, K. E. B. PARKES, Sally Redshaw, Alison J. Ritchie, Debra L. Taylor, Gareth J. Thomas, Peter J. Machin	726
7	.beta.-Adrenoceptor activity of the stereoisomers of the bufuralol alcohol and ketone metabolites 1985 ·Journal of Medicinal Chemistry ·Peter J. Machin, David N. Hurst, (unknown)	27
8	.beta.1-Selective adrenoceptor antagonists. 3. 4-Azolyl linked phenoxypropanolamines 1984 ·Journal of Medicinal Chemistry ·Peter J. Machin, David N. Hurst, (unknown), L.C. Blaber, (unknown), (unknown)	20
9	.beta.1-Selective adrenoceptor antagonists. 2. 4-Ether-linked phenoxypropanolamines 1983 ·Journal of Medicinal Chemistry ·Peter J. Machin, David N. Hurst, (unknown), L.C. Blaber, (unknown), A.D. Fryer, (unknown), (unknown)	12
10	Investigations into the in vitro and in vivo immunosuppressant activity of N-acetyl-3-sulphonamoyl-l-alanine methyl ester, a potential l-asparagine antimetabolite 1980 ·Biochemical Pharmacology ·Niall S. Doherty, Peter J. Machin	3
11	Pyrazine chemistry. Part VIII. Oxidations involving 3-arylmethylene-piperazine-2,5-diones 1976 ·Journal of the Chemical Society Perkin Transactions 1 ·Peter J. Machin, Peter G. Sammes	7
12	Pyrazine chemistry. Part VII. Oxidations of piperazine-2,5-diones and derivatives 1976 ·Journal of the Chemical Society Perkin Transactions 1 ·Peter J. Machin, Peter G. Sammes	4
13	Pyrazine chemistry. Part VI. Addition of sulphur nucleophiles across dehydrocyclodipeptides 1974 ·Journal of the Chemical Society Perkin Transactions 1 ·Peter J. Machin, Peter G. Sammes	10

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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