T. Hirai

602 total citations
23 papers, 421 citations indexed

About

T. Hirai is a scholar working on Physiology, Genetics and Aquatic Science. According to data from OpenAlex, T. Hirai has authored 23 papers receiving a total of 421 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Physiology, 6 papers in Genetics and 4 papers in Aquatic Science. Recurrent topics in T. Hirai's work include Reproductive biology and impacts on aquatic species (6 papers), Aquaculture Nutrition and Growth (4 papers) and Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities (4 papers). T. Hirai is often cited by papers focused on Reproductive biology and impacts on aquatic species (6 papers), Aquaculture Nutrition and Growth (4 papers) and Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities (4 papers). T. Hirai collaborates with scholars based in Japan, Norway and United States. T. Hirai's co-authors include Yoshitaka Nagahama, Michiyasu Yoshikuni, Masakane Yamashita, Yi-Han Lou, Toshihiko Ezashi, Yusuke Kato, Akihiko Yamaguchi, Sachiko Fukada, Philippe Bulet and Y. Lou and has published in prestigious journals such as Journal of Clinical Microbiology, Developmental Biology and General and Comparative Endocrinology.

In The Last Decade

T. Hirai

22 papers receiving 413 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
T. Hirai Japan 10 195 181 124 114 113 23 421
Ya-Wen Chang Taiwan 12 201 1.0× 203 1.1× 88 0.7× 58 0.5× 124 1.1× 17 433
Baofeng Huang China 12 310 1.6× 449 2.5× 221 1.8× 40 0.4× 119 1.1× 15 683
Delgado M. Valdez Japan 15 154 0.8× 99 0.5× 268 2.2× 323 2.8× 228 2.0× 22 602
Olivia Hibbitt United Kingdom 12 134 0.7× 151 0.8× 164 1.3× 123 1.1× 150 1.3× 17 462
F.L. Huang Taiwan 9 213 1.1× 205 1.1× 61 0.5× 50 0.4× 111 1.0× 16 353
Zuxu Yao Canada 9 203 1.0× 150 0.8× 248 2.0× 318 2.8× 255 2.3× 9 590
Rafał P. Piprek Poland 18 87 0.4× 295 1.6× 255 2.1× 105 0.9× 163 1.4× 38 591
Ikumi Nakamura Japan 10 209 1.1× 287 1.6× 29 0.2× 26 0.2× 54 0.5× 15 503
Roberto Daltro Vidal de Souza Morais Brazil 8 268 1.4× 247 1.4× 66 0.5× 78 0.7× 147 1.3× 10 428
Pedro J. Alfonso United States 11 29 0.1× 89 0.5× 355 2.9× 47 0.4× 46 0.4× 11 552

Countries citing papers authored by T. Hirai

Since Specialization
Citations

This map shows the geographic impact of T. Hirai'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 T. Hirai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. Hirai more than expected).

Fields of papers citing papers by T. Hirai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of T. Hirai

This figure shows the co-authorship network connecting the top 25 collaborators of T. Hirai. A scholar is included among the top collaborators of T. Hirai 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 T. Hirai. T. Hirai 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
1.
2.
Nakazawa, Shigeaki, Hiroki Kishikawa, Masataka Kawamura, et al.. (2014). Conversion to Mycophenolate Mofetil From Azathioprine Shows Significant Positive Effect on Graft Function in Long-Term Past–Kidney Transplantation Stable-State Patients. Transplantation Proceedings. 46(2). 411–414. 3 indexed citations
3.
Nishimura, Kunihiro, Hiroki Kishikawa, Yukio Yoshida, et al.. (2013). Clinical and Virologic Courses of Hepatitis B Surface Antigen-Negative and Hepatitis B Core or Hepatitis B Surface Antibody-Positive Renal Transplant Recipients. Transplantation Proceedings. 45(4). 1600–1602. 7 indexed citations
4.
Kishikawa, Hiroki, Kunihiro Nishimura, Kazuaki Yamanaka, et al.. (2010). Low-Dose Steroid Maintenance for Renal Transplant Recipients. Transplantation Proceedings. 42(10). 4030–4032. 5 indexed citations
5.
Hirai, T., Sayoko Yonemoto, Naohiko Fujii, et al.. (2010). Evaluation of Arterial Stiffness after Successful Renal Transplantation Using Brachial-ankle Pulse Wave Velocity. Transplantation Proceedings. 42(10). 4061–4063. 5 indexed citations
6.
Andersson, Eva, Geir Lasse Taranger, D. Consten, et al.. (2008). Molecular characterization and quantification of the gonadotropin receptors FSH-R and LH-R from Atlantic cod (Gadus morhua). General and Comparative Endocrinology. 160(1). 47–58. 35 indexed citations
7.
Takemura, Masaya, Hideo Matsumoto, Akio Niimi, et al.. (2006). High sensitivity C-reactive protein in asthma. Eur Respir J. 1 indexed citations
8.
Matsubara, M, P. Mark Lokman, Yukinori Kazeto, et al.. (2003). Synthesis and possible function of 11-ketotestosterone during oogenesis in eel (Anguilla spp.). Fish Physiology and Biochemistry. 28(1-4). 353–354. 35 indexed citations
9.
Hirai, T. & Masafumi Matsui. (2001). Food partitioning between two syntopic ranid frogs, Rana nigromaculata and R rugosa. Herpetological Journal. 11(3). 109–115. 6 indexed citations
10.
Oba, Yuichi, T. Hirai, Yasutoshi Yoshiura, & Yoshitaka Nagahama. (2000). Fish pituitary glycoprotein hormone receptors: cloning and characterization of two different gonadotropin receptors from gonads and two thyrotropin-like receptors from thyroid of amago salmon (Oncorhynchus rhodurus). 11 indexed citations
11.
Hirai, T. & Masafumi Matsui. (1999). FEEDING RELATIONSHIPS WITHIN FROG COMMUNITIES IN RICE FIELDS(Behavior Biology and Ecology)(Proceedings of the Seventieth Annual Meeting of the Zoological Society of Japan). ZOOLOGICAL SCIENCE. 16. 54. 1 indexed citations
12.
Hirashima, Noboru, et al.. (1997). Zinostatin stimalamer-transcatheter arterial embolization for hepatocellular carcinoma: a comparison with lipiodol-transcatheter arterial embolization.. PubMed. 24(2 Suppl 6). S6–91. 3 indexed citations
13.
Aoyama, Takahiko, Tadafumi Kato, Y Takeuchi, et al.. (1997). Simple, speedy, sensitive, and specific serodiagnosis of pertussis by using a particle agglutination test. Journal of Clinical Microbiology. 35(7). 1859–1861. 4 indexed citations
14.
Hirai, T., Masakane Yamashita, Michiyasu Yoshikuni, et al.. (1992). Isolation and characterization of goldfish cdk2, a cognate variant of the cell cycle regulator cdc2. Developmental Biology. 152(1). 113–120. 33 indexed citations
15.
Hirai, T., Masakane Yamashita, Michiyasu Yoshikuni, Yi-Han Lou, & Yoshitaka Nagahama. (1992). Cyclin B in fish oocytes: Its cDNA and amino acid sequences, appearance during maturation, and induction of p34cdc2 activation. Molecular Reproduction and Development. 33(2). 131–140. 82 indexed citations
16.
Yamashita, Masakane, Sachiko Fukada, Michiyasu Yoshikuni, et al.. (1992). Purification and characterization of maturation-promoting factor in fish. Developmental Biology. 149(1). 8–15. 81 indexed citations
17.
Kato, Yusuke, Toshihiko Ezashi, T. Hirai, & Teruhisa Kato. (1991). The gene for the common α subunit of porcine pituitary glycoprotein hormone. Journal of Molecular Endocrinology. 7(1). 27–34. 27 indexed citations
18.
Kato, Yusuke, Toshihiko Ezashi, T. Hirai, & T. Kato. (1990). Strain difference in nucleotide sequences of rat glycoprotein hormone subunit cDNAs and gene fragment.. ZOOLOGICAL SCIENCE. 7(5). 879–887. 7 indexed citations
19.
Ezashi, Toshihiko, T. Hirai, T. Kato, Koichi Wakabayashi, & Yusuke Kato. (1990). The gene for the β subunit of porcine LH: clusters of GC boxes and CACCC elements. Journal of Molecular Endocrinology. 5(2). 137–146. 28 indexed citations
20.
Hirai, T., et al.. (1990). Molecular cloning of cDNA for porcine prolactin precursor. Journal of Molecular Endocrinology. 4(2). 135–142. 4 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.

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