S. Kokubun

17.1k total citations · 1 hit paper
460 papers, 13.2k citations indexed

About

S. Kokubun is a scholar working on Astronomy and Astrophysics, Molecular Biology and Geophysics. According to data from OpenAlex, S. Kokubun has authored 460 papers receiving a total of 13.2k indexed citations (citations by other indexed papers that have themselves been cited), including 277 papers in Astronomy and Astrophysics, 197 papers in Molecular Biology and 77 papers in Geophysics. Recurrent topics in S. Kokubun's work include Ionosphere and magnetosphere dynamics (273 papers), Solar and Space Plasma Dynamics (241 papers) and Geomagnetism and Paleomagnetism Studies (176 papers). S. Kokubun is often cited by papers focused on Ionosphere and magnetosphere dynamics (273 papers), Solar and Space Plasma Dynamics (241 papers) and Geomagnetism and Paleomagnetism Studies (176 papers). S. Kokubun collaborates with scholars based in Japan, United States and Germany. S. Kokubun's co-authors include T. Mukai, Y. Saito, A. Nishida, T. Yamamoto, Toshimi Aizawa, C. T. Russell, Yasuhisa Tanaka, T. Terasawa, R. L. McPherron and S. Machida and has published in prestigious journals such as Nature, Journal of Geophysical Research Atmospheres and Journal of Bone and Joint Surgery.

In The Last Decade

S. Kokubun

452 papers receiving 11.8k citations

Hit Papers

align trajectories

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.

Magnetopause location under extreme solar wind conditions

1998 849 citations S. Kokubun, Hideaki Kawano et al. Journal of Geophysical Research Atmospheres profile →

Peers

S. Kokubun

AA

MB

GEOPH

SURGE

PFM

Hitoshi Mizutani Japan

M. J. Gaffey United States

S. Ortolani Italy

R. R. Anderson United States

Hitoshi Fujiwara Japan

Antti Penttilä Finland

Laura Schaefer United States

James F. Spann United States

T. Obara Japan

D. N. Anderson United States

Hitoshi Mizutani Japan

S. Kokubun

870 ×0.1

AA

1.0k ×0.2

MB

1.8k ×0.8

GEOPH

415 ×0.2

SURGE

373 ×0.3

PFM

Citations per year, relative to S. Kokubun S. Kokubun (= 1×) peers Hitoshi Mizutani

Countries citing papers authored by S. Kokubun

Since Specialization

Citations

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

Fields of papers citing papers by S. Kokubun

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of S. Kokubun

This figure shows the co-authorship network connecting the top 25 collaborators of S. Kokubun. A scholar is included among the top collaborators of S. Kokubun 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 S. Kokubun. S. Kokubun 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

1.

Ozawa, Hiroshi, Takeshi Sato, Hironori Hyodo, et al.. (2009). Clinical significance of intramedullary Gd-DTPA enhancement in cervical myelopathy. Spinal Cord. 48(5). 415–422. 42 indexed citations

2.

Hatori, Masahito, Mika Watanabe, & S. Kokubun. (2007). Chondrosarcoma of the Distal Phalanx of the Great Toe. Journal of the American Podiatric Medical Association. 97(2). 156–159. 3 indexed citations

3.

Yamada, Norikazu, Kathleen Cheung, Nicole Clarke, et al.. (2006). Does epigenetics play a role in the pathology of osteoarthritis?. ePrints Soton (University of Southampton). 3 indexed citations

4.

Ishizuka, Masato, Masahito Hatori, Osamu Dohi, et al.. (2006). Expression Profiles of Sex Steroid Receptors in Desmoid Tumors. The Tohoku Journal of Experimental Medicine. 210(3). 189–198. 36 indexed citations

5.

Hatori, Masahito, et al.. (2004). A Two- stage surgery for severe femoral neck deformity due to fibrous dysplasia: A case report. Upsala Journal of Medical Sciences. 109(2). 123–129. 6 indexed citations

6.

Hagiwara, Yoshihiro, Masahito Hatori, S. Kokubun, & Yoshinori Miyasaka. (2003). Gait characteristics of sciatic nerve palsy – A report of four cases. Upsala Journal of Medical Sciences. 108(3). 221–228. 4 indexed citations

7.

Hoshikawa, Takeshi, Yasuhisa Tanaka, S. Kokubun, et al.. (2002). Flexion–Distraction Injuries in the Thoracolumbar Spine: An In Vitro Study of the Relation Between Flexion Angle and the Motion Axis of Fracture. Journal of Spinal Disorders & Techniques. 15(2). 139–143. 13 indexed citations

8.

Kim, Khan‐Hyuk, N. Lin, C. A. Cattell, et al.. (2001). Simultaneous satellite and ground observations of transient events near the morningside magnetopause. Journal of Geophysical Research Atmospheres. 106(A4). 5743–5760. 2 indexed citations

9.

Kojima, Hirotsugu, M. Ashour‐Abdalla, W. R. Paterson, et al.. (2001). Generation of the narrowband electrostatic noise in the geomagnetic tail: Geotail observations. Journal of Geophysical Research Atmospheres. 106(A5). 8483–8488. 3 indexed citations

10.

Maeda, Shingo & S. Kokubun. (2000). Changes with Age in Proteoglycan Synthesis in Cells Cultured In Vitro From the Inner and Outer Rabbit Annulus Fibrosus. Spine. 25(2). 166–166. 68 indexed citations

11.

Nikolaeva, N. S., et al.. (2000). Two Examples of Observation of Nearly Simultaneous Motion of the Magnetopause and Earth's Bow Shock on the Interball-1 and Geotail Satellites. 38(5). 445. 1 indexed citations

12.

Kawai, H., et al.. (2000). Pharmacokinetic study of theophylline in dogs after intravenousadministration with and without ethylenediamine. Methods and Findings in Experimental and Clinical Pharmacology. 22(3). 179–179. 7 indexed citations

13.

Сергеев, В. А., Л. М. Зеленый, Н. Л. Бородкова, et al.. (1999). An Event of Plasma Sheet Heating Observed by INTERBALL-1 and GEOTAIL Spacecraft. Cosmic Research. 37(2). 107. 2 indexed citations

14.

Yermolaev, Yu. I., Л. М. Зеленый, Н. Л. Бородкова, et al.. (1999). Global substorm effect and convection jet under the conditions of continuous external driving: multi-spacecraft observations on December 22-23, 1996.. Czechoslovak Journal of Physics. 49. 625–640. 1 indexed citations

15.

Asano, Y., T. Mukai, T. Yamamoto, et al.. (1998). Relation Between Fast Flows and Dipolarization Region in Substorms. 238. 211. 2 indexed citations

16.

Baumjohann, W., T. Nagai, A. A. Petrukovich, et al.. (1998). Expansion Phase Signatures in the Tail Between 11 and 31 Earth Radii. 238. 203. 3 indexed citations

17.

Nakamura, R., S. Kokubun, T. Mukai, et al.. (1998). Temporal and Spatial Relationships Between Midtail Substorm Disturbance and Auroral Substorm Onset. 238. 179. 8 indexed citations

18.

Lui, A. T. Y., K. Liou, P. T. Newell, et al.. (1998). Plasma Sheet Behavior Associated With Auroral Breakups. 238. 183. 5 indexed citations

19.

Uzuki, Miwa, et al.. (1997). Dynamics of parathyroid hormone-related peptide(PTHrP) in RA.. Ensho. 17(5). 483–488. 1 indexed citations

20.

Kokubun, S., T. Oguti, K. Hayashi, & Tetsuya Nagata. (1974). Auroral VLF Emissions in Antarctica. Memoirs of National Institute of Polar Research. Special issue. 3. 48–60. 1 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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