R. Nishiyama
- Immunology top 10%
- Reproductive Medicine top 2%
- Obstetrics and Gynecology top 5%
- Public Health, Environmental and Occupational Health
- Agronomy and Crop Science
- Co-authors
- Kotaro KitayaHidehiko MatsubayashiKohei YamaguchiTomomoto IshikawaY. TakayaTakumi TakeuchiHisao YamadaTadahiro Yasuo
- Topics
- Sperm and Testicular Function (7 papers)Reproductive Biology and Fertility (6 papers)Reproductive System and Pregnancy (4 papers)
- Journals
- SHILAP Revista de lepidopterologíaFertility and SterilityAmerican Journal of Reproductive Immunology
- Partner nations
- Japan
In The Last Decade
R. Nishiyama
13 papers receiving 337 citations
Peers
Comparison fields: 5 of 36
- Immunology 287
- Reproductive Medicine 262
- Obstetrics and Gynecology 152
- Public Health, Environmental and Occupational Health 130
- Agronomy and Crop Science 29
Countries citing papers authored by R. Nishiyama
This map shows the geographic impact of R. Nishiyama'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 R. Nishiyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Nishiyama more than expected).
Fields of papers citing papers by R. Nishiyama
This network shows the impact of papers produced by R. Nishiyama. 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 R. Nishiyama. The network helps show where R. Nishiyama may publish in the future.
Co-authorship network of co-authors of R. Nishiyama
This figure shows the co-authorship network connecting the top 25 collaborators of R. Nishiyama. A scholar is included among the top collaborators of R. Nishiyama 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 R. Nishiyama. R. Nishiyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 1 | |
| 2 | 4 | |
| 3 | 8 | |
| 4 | 11 | |
| 5 | 166 | |
| 6 | 1 | |
| 7 | 7 | |
| 8 | 1 | |
| 9 | 1 | |
| 10 | 3 | |
| 11 | 1 | |
| 12 | 144 | |
| 13 | 1 | |
| 14 | 6 |
About R. Nishiyama
R. Nishiyama is a scholar working on Reproductive Medicine, Public Health, Environmental and Occupational Health and Obstetrics and Gynecology, having authored 14 papers that have together received 355 indexed citations. Recurring topics across this work include Sperm and Testicular Function (7 papers), Reproductive Biology and Fertility (6 papers) and Reproductive System and Pregnancy (4 papers). The work is most often cited by research in Reproductive Medicine (262 citations), Obstetrics and Gynecology (152 citations) and Immunology (287 citations). R. Nishiyama has collaborated with scholars based in Japan. Frequent co-authors include Kotaro Kitaya, Hidehiko Matsubayashi, Kohei Yamaguchi, Tomomoto Ishikawa, Y. Takaya, Takumi Takeuchi, Hisao Yamada, Tadahiro Yasuo, Takahisa Ishikawa and Mayuko Miyamoto. Their work appears in journals such as SHILAP Revista de lepidopterología, Fertility and Sterility and American Journal of Reproductive Immunology.
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.