Karoku OKAMOTO

652 total citations
33 papers, 537 citations indexed

About

Karoku OKAMOTO is a scholar working on Food Science, Molecular Medicine and Small Animals. According to data from OpenAlex, Karoku OKAMOTO has authored 33 papers receiving a total of 537 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Food Science, 10 papers in Molecular Medicine and 7 papers in Small Animals. Recurrent topics in Karoku OKAMOTO's work include Salmonella and Campylobacter epidemiology (19 papers), Antibiotic Resistance in Bacteria (10 papers) and Veterinary medicine and infectious diseases (6 papers). Karoku OKAMOTO is often cited by papers focused on Salmonella and Campylobacter epidemiology (19 papers), Antibiotic Resistance in Bacteria (10 papers) and Veterinary medicine and infectious diseases (6 papers). Karoku OKAMOTO collaborates with scholars based in Japan, Egypt and India. Karoku OKAMOTO's co-authors include Takehisa CHUMA, Francis Shahada, Masuo SUEYOSHI, Hiroyuki Yugi, Hesham Dahshan, Kozo Takase, Koji Makino, Masato Akiba, Hiroyuki Iwata and Ryouta Takahashi and has published in prestigious journals such as Frontiers in Microbiology, International Journal of Food Microbiology and Veterinary Microbiology.

In The Last Decade

Karoku OKAMOTO

33 papers receiving 509 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Karoku OKAMOTO Japan 15 421 185 162 109 107 33 537
Cornelius Poppe Canada 11 355 0.8× 223 1.2× 96 0.6× 157 1.4× 69 0.6× 14 551
R. Irwin Canada 11 293 0.7× 78 0.4× 83 0.5× 72 0.7× 96 0.9× 15 410
Anne Maki Canada 9 298 0.7× 205 1.1× 114 0.7× 135 1.2× 88 0.8× 14 513
Rossina Stefanova United States 13 389 0.9× 101 0.5× 157 1.0× 125 1.1× 128 1.2× 16 517
Ruby Singh United States 9 318 0.8× 75 0.4× 203 1.3× 136 1.2× 84 0.8× 11 470
G. Hildebrandt Germany 12 380 0.9× 67 0.4× 101 0.6× 100 0.9× 121 1.1× 48 472
H.M.E. Maas Netherlands 10 305 0.7× 94 0.5× 102 0.6× 169 1.6× 90 0.8× 15 465
Mairéad Daly Ireland 14 325 0.8× 128 0.7× 51 0.3× 69 0.6× 52 0.5× 25 610
Maw-Sheng Chien Taiwan 8 248 0.6× 111 0.6× 59 0.4× 120 1.1× 56 0.5× 10 406
Patrícia Themudo Portugal 11 266 0.6× 229 1.2× 46 0.3× 132 1.2× 66 0.6× 16 398

Countries citing papers authored by Karoku OKAMOTO

Since Specialization
Citations

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

Fields of papers citing papers by Karoku OKAMOTO

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Karoku OKAMOTO

This figure shows the co-authorship network connecting the top 25 collaborators of Karoku OKAMOTO. A scholar is included among the top collaborators of Karoku OKAMOTO 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 Karoku OKAMOTO. Karoku OKAMOTO 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.
CHUMA, Takehisa, Hesham Dahshan, Tomoko Takayama, et al.. (2013). Chronological Change of Resistance to β-Lactams in Salmonella enterica serovar Infantis Isolated from Broilers in Japan. Frontiers in Microbiology. 4. 113–113. 17 indexed citations
2.
CHUMA, Takehisa, et al.. (2011). Effect of Cooled and Chlorinated Chiller Water on Campylobacter and Coliform Counts on Broiler Carcasses during Chilling at a Middle-Size Poultry Processing Plant. Journal of Veterinary Medical Science. 74(1). 129–133. 10 indexed citations
3.
Dahshan, Hesham, et al.. (2010). Re-emergence of multi-drug resistant Salmonella enterica serovar Stanley from cattle. Veterinary Research Communications. 35(1). 55–60. 6 indexed citations
4.
Dahshan, Hesham, et al.. (2010). Genetic analysis of multidrug-resistant Salmonella enterica serovars Stanley and Typhimurium from cattle. Veterinary Microbiology. 145(1-2). 76–83. 28 indexed citations
5.
Dahshan, Hesham, et al.. (2010). Characterization of Antibiotic Resistance and the Emergence of AmpC-Producing Salmonella Infantis from Pigs. Journal of Veterinary Medical Science. 72(11). 1437–1442. 22 indexed citations
6.
Shahada, Francis, Takehisa CHUMA, Hesham Dahshan, et al.. (2009). Detection and Characterization of Extended-Spectrum β-Lactamase (TEM-52)-Producing Salmonella Serotype Infantis from Broilers in Japan. Foodborne Pathogens and Disease. 7(5). 515–521. 26 indexed citations
7.
Takahashi, Ryouta, Francis Shahada, Takehisa CHUMA, & Karoku OKAMOTO. (2006). Analysis of Campylobacter spp. contamination in broilers from the farm to the final meat cuts by using restriction fragment length polymorphism of the polymerase chain reaction products. International Journal of Food Microbiology. 110(3). 240–245. 28 indexed citations
8.
Shahada, Francis, et al.. (2006). Molecular epidemiology of antimicrobial resistance among Salmonella enterica serovar Infantis from poultry in Kagoshima, Japan. International Journal of Antimicrobial Agents. 28(4). 302–307. 76 indexed citations
9.
CHUMA, Takehisa, et al.. (2004). Acquisition of Quinolone Resistance and Point Mutation of the gyrA Gene in Campylobacter jejuni Isolated from Broilers and in vitro-Induced Resistant Strains. Journal of Veterinary Medical Science. 66(2). 155–160. 4 indexed citations
10.
CHUMA, Takehisa, et al.. (2001). Antimicrobial Susceptibilities of Campylobacter Strains Isolated from Broilers in the Southern Part of Japan from 1995 to 1999.. Journal of Veterinary Medical Science. 63(9). 1027–1029. 28 indexed citations
11.
OKAMOTO, Karoku, et al.. (1999). Epidemiological Factors in Chicken Botulism. Journal of the Japan Veterinary Medical Association. 52(3). 168–173. 3 indexed citations
12.
CHUMA, Takehisa, et al.. (1997). Direct Detection of Campylobacter jejuni in Chicken Cecal Contents by PCR.. Journal of Veterinary Medical Science. 59(1). 85–87. 21 indexed citations
13.
Sakamoto, Hiroshi, et al.. (1996). Survey of Leptospira Antibody in Horses (1991-1993). Journal of the Japan Veterinary Medical Association. 49(7). 439–442. 2 indexed citations
14.
Sakamoto, Hiroshi, et al.. (1995). Rectal Absorption of Ampicillin Suppository in Cattle. Nihon Chikusan Gakkaiho. 66(11). 969–975. 1 indexed citations
15.
CHUMA, Takehisa, et al.. (1994). A Survey of Campylobacter jejuni in Broilers from Assignment to Slaughter Using DNA-DNA Hybridization.. Journal of Veterinary Medical Science. 56(4). 697–700. 32 indexed citations
16.
Yasuda, Nobuhiro, et al.. (1992). Serum Total Amylase Activity and its Isoenzyme Fractions in Newborn Pigs with Relation to Growth and Iron Dextran-treatment.. Journal of Veterinary Medical Science. 54(6). 1151–1155. 1 indexed citations
17.
Yasuda, Nobuhiro, et al.. (1991). Persistent hematomas in Japanese black cattle with impaired platelet aggregation function and large granule eosinophils.. Journal of Veterinary Medical Science. 53(1). 107–112. 1 indexed citations
18.
Tanaka, Noboru, et al.. (1980). Experimental model for combination chemotherapy with metronidazole using human uterine cervical carcinomas transplanted into nude mice.. PubMed. 40(11). 4287–94. 9 indexed citations
19.
Arai, Tadashi, Karoku OKAMOTO, Kimiko Ishiguro, & Kiyoshi Terao. (1976). HeLa cell-tumor in nude mice and its response to antitumor agents.. PubMed. 67(4). 493–503. 8 indexed citations
20.
Nishimura, Masakazu, et al.. (1974). Distribution and Excretion of <SUP>115m</SUP>Cadmium and Its Transfer to Egg and Bone in Laying Female and Estrogenized Male Japanese Quail. The Japanese Journal of Veterinary Science. 36(2). 133–143. 5 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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