Katsuhiko Ohnuma

578 citations
24 papers · 464 indexed · h-index 13
Topics
Reproductive Biology and Fertility (16 papers)Sperm and Testicular Function (10 papers)Reproductive Physiology in Livestock (6 papers)
Partner nations
JapanIndonesiaHungary

In The Last Decade

Katsuhiko Ohnuma

24 papers receiving 454 citations

Peers

Katsuhiko Ohnuma
Comparison fields: 5 of 55
  • Public Health, Environmental and Occupational Health 368
  • Reproductive Medicine 222
  • Molecular Biology 189
  • Genetics 108
  • Agronomy and Crop Science 72
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Kosuke Iga Japan
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Joanna Kochan Poland
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Citations per year

Countries citing papers authored by Katsuhiko Ohnuma

Since Specialization
Citations

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

Fields of papers citing papers by Katsuhiko Ohnuma

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Katsuhiko Ohnuma

This figure shows the co-authorship network connecting the top 25 collaborators of Katsuhiko Ohnuma. A scholar is included among the top collaborators of Katsuhiko Ohnuma 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 Katsuhiko Ohnuma. Katsuhiko Ohnuma 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 10
2 98
3 29
4 26
5 41
6 23
7 13
8 55
9 4
10 19
11 12
12 28
13 26
14 13
15 3
16 8
17 9
18 12
19 10
20 13

About Katsuhiko Ohnuma

Katsuhiko Ohnuma is a scholar working on Reproductive Medicine, Equine and Agronomy and Crop Science, having authored 24 papers that have together received 464 indexed citations. Recurring topics across this work include Reproductive Biology and Fertility (16 papers), Sperm and Testicular Function (10 papers) and Reproductive Physiology in Livestock (6 papers). The work is most often cited by research in Reproductive Medicine (222 citations), Public Health, Environmental and Occupational Health (368 citations) and Equine (15 citations). Katsuhiko Ohnuma has collaborated with scholars based in Japan, Indonesia and Hungary. Frequent co-authors include Hiroyuki Kaneko, Junko Noguchi, Kazuhiro Kikuchi, Manabu Ozawa, Takashi Nagai, N. Maedomari, Ni Wayan Kurniani Karja, Mokhamad Fahrudin, Naomi Kashiwazaki and Michiko Nakai. Their work appears in journals such as Reproduction, Theriogenology and Animal Reproduction Science.

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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