This map shows the geographic impact of N Popov'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 N Popov with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites N Popov more than expected).
This network shows the impact of papers produced by N Popov. 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 N Popov. The network helps show where N Popov may publish in the future.
Co-authorship network of co-authors of N Popov
This figure shows the co-authorship network connecting the top 25 collaborators of N Popov.
A scholar is included among the top collaborators of N Popov 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 N Popov. N Popov is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Staak, Sabine, N Popov, & H Matthies. (1989). Effects of intraperitoneally applied D-galactosamine on uridine and cytidine plasma content and brain activity of uridine kinase in the rat.. PubMed. 48(4). 325–31.1 indexed citations
5.
Popov, N, et al.. (1988). Alterations in calmodulin content of rat brain areas after chronic application of haloperidol and amphetamine.. PubMed. 47(4-5). 435–41.7 indexed citations
6.
Popov, N, W. D. Pohle, S Schulzeck, & H Matthies. (1988). A biochemical and immunohistological study of calmodulin in rat brain structures.. PubMed. 29(4). 473–80.4 indexed citations
7.
Popov, N. (1985). Effects of D-galactosamine and D-glucosamine on retention performance of a brightness discrimination task in rats.. PubMed. 44(4). 611–22.14 indexed citations
Pohle, W. D., N Popov, & H Matthies. (1980). Visualization of rat brain glycoproteins in polyacrylamide gels by means of concanavalin A-peroxidase.. PubMed. 39(6). 665–70.1 indexed citations
12.
Popov, N, S Schulzeck, W. D. Pohle, & H Matthies. (1980). Intraventricularly applied D-galactosamine inhibits the incorporation of [(3)H]-fucose into rat brain glycoproteins.. PubMed. 39(1). 13–20.1 indexed citations
Popov, N, S Schulzeck, Stefanie J. Schmidt, & H Matthies. (1975). Changes in labeling of soluble and insoluble rat brain proteins using [3H]-tyrosine as precursor during a learning experiment.. PubMed. 34(11-12). 1863–7.10 indexed citations
16.
Popov, N, et al.. (1975). [Reliable micromethod for determination of the protein content in tissue homogenates].. PubMed. 34(9). 1441–6.116 indexed citations
17.
Popov, N, et al.. (1971). [A sensitive method of determining monoamine oxidase activity in tissue by measurement of aldehyde semicarbazone].. PubMed. 26(2). 239–45.3 indexed citations
Popov, N, et al.. (1967). [Regional distribution of gamma-aminobutyric acid, glutamic acid, aspartic acid, dopamine, noradrenaline and serotonin in rat brain].. PubMed. 18(6). 695–702.6 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.