Hitoshi Ushijima

737 total citations
33 papers, 597 citations indexed

About

Hitoshi Ushijima is a scholar working on Public Health, Environmental and Occupational Health, Genetics and Molecular Biology. According to data from OpenAlex, Hitoshi Ushijima has authored 33 papers receiving a total of 597 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Public Health, Environmental and Occupational Health, 17 papers in Genetics and 15 papers in Molecular Biology. Recurrent topics in Hitoshi Ushijima's work include Reproductive Biology and Fertility (22 papers), Animal Genetics and Reproduction (9 papers) and Renal and related cancers (8 papers). Hitoshi Ushijima is often cited by papers focused on Reproductive Biology and Fertility (22 papers), Animal Genetics and Reproduction (9 papers) and Renal and related cancers (8 papers). Hitoshi Ushijima collaborates with scholars based in Japan, United States and Australia. Hitoshi Ushijima's co-authors include Tsutomu Nakahara, S. Iwasaki, Hiroshi Nagashima, Soichi Watanabe, Nagako Yoshiba, Hirohito YAMAKAWA, Masashige Kuwayama, Hiroki Yoshioka, Kiyoshi Akiyama and R. Tomii and has published in prestigious journals such as Biology of Reproduction, Reproduction and Theriogenology.

In The Last Decade

Hitoshi Ushijima

33 papers receiving 565 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hitoshi Ushijima Japan 10 531 252 247 210 78 33 597
J.P. Renard France 13 514 1.0× 198 0.8× 331 1.3× 206 1.0× 70 0.9× 48 713
Pimprapar Wongsrikeao Japan 16 517 1.0× 344 1.4× 270 1.1× 125 0.6× 41 0.5× 28 660
T.T. Peura Australia 12 654 1.2× 208 0.8× 524 2.1× 370 1.8× 73 0.9× 23 821
I. Donnay Belgium 9 491 0.9× 262 1.0× 264 1.1× 120 0.6× 73 0.9× 12 600
I. M. Crosby Slovakia 11 565 1.1× 361 1.4× 200 0.8× 178 0.8× 125 1.6× 12 716
Marie Machatková Czechia 12 453 0.9× 279 1.1× 127 0.5× 187 0.9× 183 2.3× 50 573
S. Matoba Japan 13 432 0.8× 233 0.9× 182 0.7× 139 0.7× 116 1.5× 30 507
P.M.M. Kastrop Netherlands 15 429 0.8× 426 1.7× 171 0.7× 207 1.0× 77 1.0× 24 678
S. Tachikawa Japan 12 607 1.1× 449 1.8× 208 0.8× 99 0.5× 91 1.2× 23 678
N. Facal Spain 14 416 0.8× 248 1.0× 246 1.0× 131 0.6× 129 1.7× 19 566

Countries citing papers authored by Hitoshi Ushijima

Since Specialization
Citations

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

Fields of papers citing papers by Hitoshi Ushijima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hitoshi Ushijima

This figure shows the co-authorship network connecting the top 25 collaborators of Hitoshi Ushijima. A scholar is included among the top collaborators of Hitoshi Ushijima 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 Hitoshi Ushijima. Hitoshi Ushijima 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.
Morita, Mami, et al.. (2016). Establishment of superovulation procedure in Japanese field vole, Microtus montebelli. Theriogenology. 86(3). 899–905. 2 indexed citations
2.
Ushijima, Hitoshi, et al.. (2016). The selectivity of securing successor cattle in Tochigi prefecture. Nihon Chikusan Gakkaiho. 87(1). 25–33. 1 indexed citations
3.
HORI, Tatsuya, et al.. (2016). Intrauterine embryo transfer with canine embryos cryopreserved by the slow freezing and the Cryotop method. Journal of Veterinary Medical Science. 78(7). 1137–1143. 3 indexed citations
4.
Ushijima, Hitoshi, et al.. (2013). A Case Study of Productive Cost for Heifers on Home-Raising and Dairy Performance at Nishifuji Area. 51(2). 43–48. 1 indexed citations
5.
Seki, Makoto, et al.. (2011). Relation of reproductive performances and rectal palpation for luteum function of heifers 7 days after estrus. Animal Science Journal. 83(3). 207–212. 12 indexed citations
6.
Chiba, Kōji, et al.. (2011). Effect of estrus synchronization treatment after luteolysis on Holstein heifers as embryo transfer recipients. Animal Science Journal. 83(7). 529–534. 1 indexed citations
7.
Ushijima, Hitoshi. (2008). Administrative law and judicialized governance in Japan. 91–110. 3 indexed citations
8.
Ushijima, Hitoshi, et al.. (2006). Effective Estrus-Ovulation Synchronization of Recipients for Embryo Transfer in Holstein Heifers. Nihon Chikusan Gakkaiho. 77(1). 23–28. 2 indexed citations
9.
Ushijima, Hitoshi. (2005). Application Study of Developmental Engineering for Livestock Production. Journal of Reproduction and Development. 51(1). 15–22. 8 indexed citations
10.
Kurome, Mayuko, R. Tomii, Hiroki Yoshioka, et al.. (2004). Cryopreservation of Porcine Embryos Derived from In Vitro-Matured Oocytes1. Biology of Reproduction. 71(2). 432–437. 80 indexed citations
11.
Bao, Siqin, et al.. (2003). Development of bovine oocytes reconstructed with a nucleus from growing stage oocytes after fertilization in vitro. Theriogenology. 59(5-6). 1231–1239. 32 indexed citations
12.
Ushijima, Hitoshi, et al.. (2002). Bovine Nucleus Transplantation by Intracytoplasmic Injection.. Journal of Reproduction and Development. 48(6). 619–626. 5 indexed citations
13.
Ushijima, Hitoshi, Hirohito YAMAKAWA, & Hiroshi Nagashima. (1999). Cryopreservation of Bovine Pre-Morula-Stage In Vitro Matured/In Vitro Fertilized Embryos after Delipidation and before Use in Nucleus Transfer. Biology of Reproduction. 60(2). 534–539. 59 indexed citations
14.
Ushijima, Hitoshi, et al.. (1994). Bovine Nuclear Transplantation Using a Parthenogenetically Activated Oocyte as the Recipient Cytoplast.. Journal of Reproduction and Development. 40(2). 117–124. 6 indexed citations
15.
Ushijima, Hitoshi & Tomoo Eto. (1993). Bovine nuclear transfer using parthenogenetically activated oocyte as recipient cytoplast. Theriogenology. 39(1). 333–333. 4 indexed citations
16.
Iwasaki, S., Seizo Hamano, Masashige Kuwayama, et al.. (1992). Developmental changes in the incidence of chromosome anomalies of bovine embryos fertilized in vitro. Journal of Experimental Zoology. 261(1). 79–85. 58 indexed citations
17.
Ushijima, Hitoshi, et al.. (1992). Production of a Calf from a Nuclear Transfer Embryo Using in Vitro Matured Oocytes.. Journal of Reproduction and Development. 38(1). 61–65. 6 indexed citations
18.
Ushijima, Hitoshi, et al.. (1991). In vitro development of bovine reconstituted eggs after fusion with a blastomere from 8-cell to blastocyst stage embryos.. Kachiku hanshokugaku zasshi. 37(1). 15–19. 3 indexed citations
19.
Iwasaki, S., Nagako Yoshiba, Hitoshi Ushijima, Soichi Watanabe, & Tsutomu Nakahara. (1990). Morphology and proportion of inner cell mass of bovine blastocysts fertilized in vitro and in vivo. Reproduction. 90(1). 279–284. 186 indexed citations
20.
Tsunoda, Yukio, Yuko Maruyama, Hitoshi Ushijima, et al.. (1989). Nuclear Transplantation of 8-16-cel1 Embryos into Enucleated Oocytes in the Rabbit. Nihon Chikusan Gakkaiho. 60(9). 846–851. 3 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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