Shokichi Iwamura

1.2k total citations · 1 hit paper
15 papers, 1.0k citations indexed

About

Shokichi Iwamura is a scholar working on Agronomy and Crop Science, Genetics and Molecular Biology. According to data from OpenAlex, Shokichi Iwamura has authored 15 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Agronomy and Crop Science, 7 papers in Genetics and 5 papers in Molecular Biology. Recurrent topics in Shokichi Iwamura's work include Reproductive Physiology in Livestock (7 papers), Reproductive Biology and Fertility (5 papers) and Estrogen and related hormone effects (3 papers). Shokichi Iwamura is often cited by papers focused on Reproductive Physiology in Livestock (7 papers), Reproductive Biology and Fertility (5 papers) and Estrogen and related hormone effects (3 papers). Shokichi Iwamura collaborates with scholars based in Japan and Sweden. Shokichi Iwamura's co-authors include Koji Yoshioka, Chie Suzuki, Atsushi Tanaka, Chie Suzuki, Hisashi HIROSE, Hideo KAMOMAE, Seigo Itoh, Kazuhiro Kikuchi, Yoshihisa Hasegawa and Heriberto Rodríguez‐Martínez and has published in prestigious journals such as Biology of Reproduction, Reproduction and Journal of Endocrinology.

In The Last Decade

Shokichi Iwamura

15 papers receiving 1.0k citations

Hit Papers

Birth of Piglets Derived from Porcine Zygotes Cultured in... 2002 2026 2010 2018 2002 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Birth of Piglets Derived from Porcine Zygotes Cultured in a Chemically Defined Medium1
    2002 570 citations Koji Yoshioka, Chie Suzuki et al. Biology of Reproduction profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Shokichi Iwamura Japan 11 688 507 411 296 244 15 1.0k
G.E. Seidel United States 17 714 1.0× 204 0.4× 380 0.9× 393 1.3× 401 1.6× 77 1.1k
C. L. Moeller United States 10 578 0.8× 282 0.6× 321 0.8× 215 0.7× 460 1.9× 12 933
R. S. Manik India 20 973 1.4× 652 1.3× 610 1.5× 418 1.4× 340 1.4× 110 1.4k
P. Palta India 19 745 1.1× 555 1.1× 508 1.2× 330 1.1× 265 1.1× 81 1.1k
Maurício Machaim Franco Brazil 19 769 1.1× 531 1.0× 565 1.4× 375 1.3× 220 0.9× 85 1.3k
Jozef Laurinčík Slovakia 21 839 1.2× 822 1.6× 503 1.2× 269 0.9× 170 0.7× 91 1.3k
Seizo Hamano Japan 19 903 1.3× 283 0.6× 304 0.7× 643 2.2× 274 1.1× 48 1.2k
B.A. Didion United States 14 719 1.0× 221 0.4× 199 0.5× 579 2.0× 119 0.5× 28 879
C. Grøndahl Denmark 21 724 1.1× 267 0.5× 123 0.3× 536 1.8× 121 0.5× 41 1.0k
Byeong-Chun Lee South Korea 17 518 0.8× 456 0.9× 360 0.9× 199 0.7× 54 0.2× 49 853

Countries citing papers authored by Shokichi Iwamura

Since Specialization
Citations

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

Fields of papers citing papers by Shokichi Iwamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Shokichi Iwamura

This figure shows the co-authorship network connecting the top 25 collaborators of Shokichi Iwamura. A scholar is included among the top collaborators of Shokichi Iwamura 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 Shokichi Iwamura. Shokichi Iwamura is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

15 of 15 papers shown
1.
Noguchi, Michiko, Koji Yoshioka, Hiroyuki Kaneko, et al.. (2007). Measurement of Porcine Luteinizing Hormone Concentration in Blood by Time-Resolved Fluoroimmunoassay. Journal of Veterinary Medical Science. 69(12). 1291–1294. 17 indexed citations
2.
Suzuki, Chie, Shokichi Iwamura, & Koji Yoshioka. (2004). Birth of Piglets through the Non-Surgical Transfer of Blastocysts Produced In Vitro. Journal of Reproduction and Development. 50(4). 487–491. 44 indexed citations
3.
4.
Yoshioka, Koji, et al.. (2002). Birth of Piglets Derived from Porcine Zygotes Cultured in a Chemically Defined Medium1. Biology of Reproduction. 66(1). 112–119. 570 indexed citations breakdown →
5.
Yoshioka, Koji, Chie Suzuki, Shozo Arai, Shokichi Iwamura, & Hisashi HIROSE. (2001). Gonadotropin-Releasing Hormone in Third Ventricular Cerebrospinal Fluid of the Heifer During the Estrous Cycle1. Biology of Reproduction. 64(2). 563–570. 23 indexed citations
6.
Suzuki, Chie, Koji Yoshioka, Shokichi Iwamura, & Hisashi HIROSE. (2001). Endotoxin induces delayed ovulation following endocrine aberration during the proestrous phase in Holstein heifers. Domestic Animal Endocrinology. 20(4). 267–278. 108 indexed citations
7.
Yoshioka, Koji, Chie Suzuki, & Shokichi Iwamura. (2000). Effects of activin A and follistatin on developmental kinetics of bovine embryos: cinematographic analysis in a chemically defined medium. Reproduction. 118(1). 119–125. 25 indexed citations
8.
Iwamura, Shokichi, et al.. (1999). Precocious Estrus and Reproductive Ability Induced by PG 600 in Prepuberal Gilts. Journal of Veterinary Medical Science. 61(1). 7–11. 2 indexed citations
9.
Suzuki, Chie, et al.. (1998). Activin A and Follistatin Regulate Developmental Competence of In Vitro-Produced Bovine Embryos1. Biology of Reproduction. 59(5). 1017–1022. 28 indexed citations
10.
Yoshioka, Koji, Shokichi Iwamura, & Hideo KAMOMAE. (1998). Changes of Ovarian Structures, Plasma LH, FSH, Progesterone and Estradiol-17.BETA. in a Cow with Ovarian Cysts Showing Spontaneous Recovery and Relapse.. Journal of Veterinary Medical Science. 60(2). 257–260. 22 indexed citations
11.
Yoshioka, Koji, Shokichi Iwamura, & Hideo KAMOMAE. (1996). Ultrasonic observations on the turnover of ovarian follicular cysts and associated changes of plasma LH, FSH, progesterone and oestradiol-17β in cows. Research in Veterinary Science. 61(3). 240–244. 44 indexed citations
12.
Yoshioka, Koji, Shokichi Iwamura, & Hideo KAMOMAE. (1995). Application of Anti-Bovine CD2 Monoclonal Antibody to the Rosette Inhibition Test for Detection of Early Pregnancy Factor in Cattle.. Journal of Veterinary Medical Science. 57(4). 721–725. 3 indexed citations
13.
Ogasa, Akira, et al.. (1991). Response of the lactating and postweaning sow to gonadotropin releasing hormone(GnRH).. Journal of Veterinary Medical Science. 53(2). 181–184. 4 indexed citations
14.
Ogasa, Akira, et al.. (1989). Effect of high temperature and humidity in the periovulatory phase on swine ovarian function.. The Japanese Journal of Veterinary Science. 51(3). 627–629. 2 indexed citations
15.
Hasegawa, Yoshihisa, Κ. MIYAMOTO, Shokichi Iwamura, & M Igarashi. (1988). Changes in serum concentrations of inhibin in cyclic pigs. Journal of Endocrinology. 118(2). 211–219. 61 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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Breakdown of academic impact, for papers by G.E. Seidel Breakdown of academic impact, for papers by C. L. Moeller Breakdown of academic impact, for papers by R. S. Manik Breakdown of academic impact, for papers by P. Palta Breakdown of academic impact, for papers by Maurício Machaim Franco Breakdown of academic impact, for papers by Jozef Laurinčík Breakdown of academic impact, for papers by Seizo Hamano Breakdown of academic impact, for papers by B.A. Didion Breakdown of academic impact, for papers by C. Grøndahl Breakdown of academic impact, for papers by Byeong-Chun Lee
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