Naoki Oka

653 total citations
19 papers, 440 citations indexed

About

Naoki Oka is a scholar working on Oncology, Organic Chemistry and Surgery. According to data from OpenAlex, Naoki Oka has authored 19 papers receiving a total of 440 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Oncology, 4 papers in Organic Chemistry and 3 papers in Surgery. Recurrent topics in Naoki Oka's work include Cancer Cells and Metastasis (4 papers), Glioma Diagnosis and Treatment (3 papers) and Catalytic Cross-Coupling Reactions (2 papers). Naoki Oka is often cited by papers focused on Cancer Cells and Metastasis (4 papers), Glioma Diagnosis and Treatment (3 papers) and Catalytic Cross-Coupling Reactions (2 papers). Naoki Oka collaborates with scholars based in Japan and United States. Naoki Oka's co-authors include Akio Soeda, Toru Iwama, Akihito Inagaki, Takahiro Kunisada, Shinichi Yoshimura, Yuka Ikegame, Hitomi Aoki, Shigeru Nakashima, Hironao Sajiki and Takashi Ikawa and has published in prestigious journals such as Journal of Biological Chemistry, Biochemical and Biophysical Research Communications and Organic Letters.

In The Last Decade

Naoki Oka

15 papers receiving 426 citations

Peers

Naoki Oka
Karin Staflin United States
Audrey Petit France
Andréia Vasconcelos-dos-Santos Brazil
Balasubramanian Sivasankaran Switzerland
Ji Hyeon Oh South Korea
Jason M. Beckta United States
Linhong Sun United States
Vaibhav Mundra United States
Victor Maximov United States
Karin Staflin United States
Naoki Oka
Citations per year, relative to Naoki Oka Naoki Oka (= 1×) peers Karin Staflin

Countries citing papers authored by Naoki Oka

Since Specialization
Citations

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

Fields of papers citing papers by Naoki Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Naoki Oka

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

All Works

19 of 19 papers shown
1.
2.
Kiyasu, Yoshiyuki, Naoki Oka, Makio Mike, & Hiroshi Kusanagi. (2024). Increased length of incarcerated small bowel as a risk factor for intestinal necrosis in obturator hernia. Hernia. 29(1). 38–38.
3.
Oka, Naoki, et al.. (2024). TUN-DAS: Time-Series Analysis and Unsupervised Learning Based Driving Behavior Assessment System. IEEE Transactions on Intelligent Transportation Systems. 26(1). 604–619.
4.
Oka, Naoki, et al.. (2022). Platinum on carbon-catalysed site-selective H–D exchange reaction of allylic alcohols using alkyl amines as a hydrogen source. Organic Chemistry Frontiers. 9(7). 1986–1991. 6 indexed citations
5.
Oka, Naoki, Tsuyoshi Yamada, Hironao Sajiki, Shuji Akai, & Takashi Ikawa. (2022). Aryl Boronic Esters Are Stable on Silica Gel and Reactive under Suzuki–Miyaura Coupling Conditions. Organic Letters. 24(19). 3510–3514. 67 indexed citations
6.
Oka, Naoki, et al.. (2020). Development of a Situational Awareness Estimation Model Considering Traffic Environment for Unscheduled Takeover Situations. International Journal of Intelligent Transportation Systems Research. 19(1). 167–181. 5 indexed citations
7.
8.
Oka, Naoki, Akira Tsunoda, Tomoko Takahashi, Satoshi Matsuda, & Hiroshi Kusanagi. (2020). Predictive Factors and Effects of Replaced Rectorectal Intussusception on Functional Outcomes in Patients with Rectoanal Intussusception Who Have Undergone Laparoscopic Ventral Rectopexy. Indian Journal of Surgery. 83(1). 79–86.
9.
Oka, Naoki, et al.. (2020). A novel synthetic method of 2,4-disubstituted oxazoles using carboxylic acid-derived Bu2Sn[OC(O)R]2. Tetrahedron Letters. 61(24). 151983–151983. 3 indexed citations
10.
Oka, Naoki, et al.. (2019). TMSN3-Bu2Sn(OAc)2: A modified and mild reagent system for Wittenberger tetrazole-synthesis. Tetrahedron Letters. 61(8). 151517–151517. 16 indexed citations
11.
Tsunoda, Akira, Tomoko Takahashi, Satoshi Matsuda, Naoki Oka, & Hiroshi Kusanagi. (2019). Midterm functional outcome after laparoscopic ventral rectopexy for external rectal prolapse. Asian Journal of Endoscopic Surgery. 13(1). 25–32. 15 indexed citations
12.
Shimizu, Mayumi, et al.. (2018). Educational Method for Developing Assessment Skills of Nursing Students. Open Journal of Nursing. 8(8). 518–530. 3 indexed citations
13.
Ohtsu, Hiroyoshi, Naoki Oka, & Tadashi Yamaguchi. (2011). Syntheses and properties of a series of oxo-centered triruthenium complexes with thiocyanate and nitrite as terminal ligand. Inorganica Chimica Acta. 383. 1–6. 7 indexed citations
14.
Oka, Naoki, Akio Soeda, Shinji Noda, & Toru Iwama. (2009). Brain Tumor Stem Cells From an Adenoid Glioblastoma Multiforme. Neurologia medico-chirurgica. 49(4). 146–151. 11 indexed citations
15.
Soeda, Akio, Akihito Inagaki, Naoki Oka, et al.. (2008). Epidermal Growth Factor Plays a Crucial Role in Mitogenic Regulation of Human Brain Tumor Stem Cells. Journal of Biological Chemistry. 283(16). 10958–10966. 132 indexed citations
16.
Inagaki, Akihito, Akio Soeda, Naoki Oka, et al.. (2007). Long-term maintenance of brain tumor stem cell properties under at non-adherent and adherent culture conditions. Biochemical and Biophysical Research Communications. 361(3). 586–592. 44 indexed citations
17.
Oka, Naoki, Akio Soeda, Akihito Inagaki, et al.. (2007). VEGF promotes tumorigenesis and angiogenesis of human glioblastoma stem cells. Biochemical and Biophysical Research Communications. 360(3). 553–559. 119 indexed citations
18.
Oka, Naoki, et al.. (1979). LEARNING OF READING KANJI AND KANA MOJI IN YOUNG CHILDREN. The Japanese journal of psychology. 50(1). 49–52. 3 indexed citations
19.
Steinberg, Danny D. & Naoki Oka. (1978). LEARNING TO READ KANJI IS EASIER THAN LEARNING INDIVIDUAL KANA. The Japanese journal of psychology. 49(1). 15–21. 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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