This map shows the geographic impact of Kazuo Oginuma'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 Kazuo Oginuma with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kazuo Oginuma more than expected).
This network shows the impact of papers produced by Kazuo Oginuma. 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 Kazuo Oginuma. The network helps show where Kazuo Oginuma may publish in the future.
Co-authorship network of co-authors of Kazuo Oginuma
This figure shows the co-authorship network connecting the top 25 collaborators of Kazuo Oginuma.
A scholar is included among the top collaborators of Kazuo Oginuma 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 Kazuo Oginuma. Kazuo Oginuma is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Oginuma, Kazuo, et al.. (2004). Karyomorphology of Lysimachia mauritiana (Primulaceae) in the Orchid Island, Taiwan. Chromosome science. 8(2). 63–66.4 indexed citations
7.
Oginuma, Kazuo, et al.. (2004). Karyomorphology of eight species of Spiraea (Rosaceae) in Russia. Chromosome science. 8(1). 23–28.3 indexed citations
8.
Oginuma, Kazuo, et al.. (2004). Aneuploidy and karyotypic variation of Lysimachia mauritiana (Primulaceae) in the Yonagunijima Island, the Ryukyu Archipelago, Japan. Chromosome science. 8(2). 45–54.9 indexed citations
9.
Horiuchi, Kazumi & Kazuo Oginuma. (2001). Karyomorphology of three species of Stewartia(Theaceae) in Japan. Chromosome science. 5(2). 79–82.3 indexed citations
10.
Oginuma, Kazuo, et al.. (2000). Chromosomal evolution of three genera in the Betulaceae concerning polyploidy revealed by in situ hybridization using 5S rDNA. Chromosome science. 4(2). 47–55.2 indexed citations
Horiuchi, Kazumi, et al.. (1999). Genome constitution and chromosomal localization of 5S rDNA in Scilla scilloides var. major(Liliaceae) revealed by in situ hybridization. Chromosome science. 3(3). 111–115.2 indexed citations
13.
Oginuma, Kazuo. (1999). Karyomorphology and evolution in Juglandales: a review. 50(2). 229–241.2 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.