K. Hirayama

1.3k total citations
35 papers, 951 citations indexed

About

K. Hirayama is a scholar working on Health, Toxicology and Mutagenesis, Environmental Chemistry and Molecular Biology. According to data from OpenAlex, K. Hirayama has authored 35 papers receiving a total of 951 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Health, Toxicology and Mutagenesis, 6 papers in Environmental Chemistry and 4 papers in Molecular Biology. Recurrent topics in K. Hirayama's work include Aquatic Ecosystems and Phytoplankton Dynamics (6 papers), Heavy Metal Exposure and Toxicity (5 papers) and Mercury impact and mitigation studies (5 papers). K. Hirayama is often cited by papers focused on Aquatic Ecosystems and Phytoplankton Dynamics (6 papers), Heavy Metal Exposure and Toxicity (5 papers) and Mercury impact and mitigation studies (5 papers). K. Hirayama collaborates with scholars based in Japan, India and Indonesia. K. Hirayama's co-authors include Akira Yasutake, Yongping Fu, Yutaka Natsukari, Nobuko Mori, Yuji Kajiwara, Tatsumi Adachi, Zahir A. Shaikh, Atsushi Hagiwara, Natesan Munuswamy and Kôji Watanabe and has published in prestigious journals such as Journal of Biological Chemistry, Environmental Health Perspectives and Journal of Lipid Research.

In The Last Decade

K. Hirayama

34 papers receiving 890 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
K. Hirayama Japan	17	410	250	169	158	141	35	951
Denina Simmons Canada	19	373 0.9×	140 0.6×	98 0.6×	142 0.9×	67 0.5×	42	879
Pierre Devos Belgium	15	286 0.7×	197 0.8×	221 1.3×	30 0.2×	166 1.2×	23	1.0k
J. F. Uthe Canada	20	876 2.1×	108 0.4×	216 1.3×	101 0.6×	118 0.8×	81	1.4k
Carlos M. Luquet Argentina	25	599 1.5×	264 1.1×	755 4.5×	77 0.5×	420 3.0×	72	1.7k
Gabriela Malanga Argentina	18	187 0.5×	167 0.7×	172 1.0×	56 0.4×	90 0.6×	51	929
Frederick P. Thurberg United States	14	481 1.2×	73 0.3×	242 1.4×	69 0.4×	180 1.3×	24	778
S. R. Petrocelli United States	8	883 2.2×	132 0.5×	201 1.2×	28 0.2×	146 1.0×	12	1.2k
Marsha C. Black United States	22	866 2.1×	122 0.5×	352 2.1×	25 0.2×	102 0.7×	42	1.6k
Eugene Jackim United States	14	504 1.2×	89 0.4×	114 0.7×	37 0.2×	99 0.7×	26	835
J.F. de L.G. Solbé United Kingdom	19	684 1.7×	93 0.4×	158 0.9×	142 0.9×	148 1.0×	32	1.1k

Countries citing papers authored by K. Hirayama

Since Specialization

Citations

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

Fields of papers citing papers by K. Hirayama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Hirayama

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Toda, Hiroyuki, et al.. (2024). The spatial and temporal characterization of type IV creep fracture in notched specimen of modified 9Cr–1Mo steel. Materials Science and Engineering A. 902. 146607–146607. 3 indexed citations

Wang, Douyan, Xiaofei Lin, K. Hirayama, et al.. (2009). A New Application of Underwater Pulsed Streamerlike Discharge to Transcriptional Activation of Retrotransposon ofPorphyra yezoensis. IEEE Transactions on Plasma Science. 38(1). 39–46. 7 indexed citations

Mori, Nobuko, Akira Yasutake, & K. Hirayama. (2007). Comparative study of activities in reactive oxygen species production/defense system in mitochondria of rat brain and liver, and their susceptibility to methylmercury toxicity. Archives of Toxicology. 81(11). 769–776. 130 indexed citations

Yasutake, Akira, Masaaki Nagano, & K. Hirayama. (2003). Alterations of metallothionein isomers in Hg 0 -exposed rat brain. Archives of Toxicology. 77(1). 12–16. 8 indexed citations

Komatsu, Nobukazu, et al.. (2000). Detoxifying ability of marine bacterium Flavobacterium sp. against a toxic contaminant in the reagent sodium chloride to Nannochloropsis oculata. Fisheries Science. 66(2). 241–248. 2 indexed citations

Hirayama, K.. (1999). Status of live feed culture for aquaculture purpose in Mexico. 80(80). 43–47. 1 indexed citations

Kajiwara, Yuji, Akira Yasutake, & K. Hirayama. (1997). Strain Difference in Methylmercury Transport across the Placenta. Bulletin of Environmental Contamination and Toxicology. 59(5). 783–787. 4 indexed citations

Munuswamy, Natesan, et al.. (1997). Effect of disinfectants on the hatching of marine rotifer resting eggs Brachionus plicatilis Muller. Aquaculture Research. 28(7). 559–565. 16 indexed citations

Kajiwara, Yuji, Akira Yasutake, Tatsumi Adachi, & K. Hirayama. (1996). Methylmercury transport across the placenta via neutral amino acid carrier. Archives of Toxicology. 70(5). 310–314. 153 indexed citations

10.

Kamitsukasa, Ikuo, et al.. (1995). [Clinical features and factors related to the functional prognosis in Meige's syndrome].. PubMed. 35(3). 231–6. 1 indexed citations

11.

Hirayama, K., et al.. (1991). Growth and elemental composition (C, N, P) during larval developmental stages of mass-cultured swimming crab Portunus trituberculatus. Marine Ecology Progress Series. 78. 131–137. 22 indexed citations

12.

Hirayama, K., et al.. (1988). The accumulation of dissolved organic substances in closed recirculation culture systems. Aquacultural Engineering. 7(2). 73–87. 19 indexed citations

13.

Hirayama, K., et al.. (1988). Mercury accumulation in lens following single administration of methylmercury.. PubMed. 32(3). 275–80. 3 indexed citations

14.

Hirayama, K., et al.. (1986). [Diaphragmatic myoclonus of spinal origin].. PubMed. 26(1). 13–9. 2 indexed citations

15.

Shaikh, Zahir A. & K. Hirayama. (1979). Metallothionein in the extracellular fluids as an index of cadmium toxicity.. Environmental Health Perspectives. 28. 267–271. 42 indexed citations

16.

Hirayama, K., et al.. (1978). Food selectivity of the rotifer Brachionus plicatilis feeding on phytoplankton. Marine Biology. 45(2). 105–111. 47 indexed citations

17.

Hirayama, K.. (1975). Transport mechanism of methyl mercury. Intestinal absorption, biliary excretion and distribution of methyl mercury.. PubMed. 28(4). 151–63. 25 indexed citations

18.

Hamano, H, K. Hirayama, Maiya Hori, Keiichi Kanda, & Masao Wada. (1972). [Hard and soft contact lenses studied with scanning electron microscopy].. PubMed. 14(3). 45–54. 1 indexed citations

19.

Hirayama, K. & Hideki Takahashi. (1970). Studies on the treatment for methyl mercury poisoning "lowering of the methyl mercury content in the poisoned animal brain".. PubMed. 23(2). 56–64. 4 indexed citations

20.

Yamafuji, K, et al.. (1958). Protease and desoxyribonuclease in viral polyhedral crystal.. PubMed. 19(1). 53–8. 16 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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