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| 1 | Plasma depletions lasting into daytime during the recovery phase of a geomagnetic storm in May 2017:Analysis and simulation of GPS total electron content observations显示文摘This paper reports that plasma density depletions appearing at middle latitudes near sunrise survived until afternoon on 29 May 2017 during the recovery phase of a geomagnetic storm.By analyzing GPS data collected in Japan,we investigate temporal variations in the horizontal two-dimensional distribution of total electron content(TEC)during the geomagnetic storm.The SYM-H index reached-142 n T around 08 UT on 28 May 2017.TEC depletions extending up to approximately 38°N along the meridional direction appeared over Japan around 05 LT(LT=UT+9 hours)on 29 May 2017,when TEC rapidly increased at sunrise due to the solar extreme ultraviolet(EUV)radiation.The TEC depletions appeared sequentially over Japan for approximately 8 hours in sunlit conditions.At 06 LT on 29 May,when the plasma depletions first appeared over Japan,the background TEC was enhanced to approximately 17 TECU,and then decreased to approximately 80%of the TEC typical of magnetically quiet conditions.We conclude that this temporal variation of background plasma density in the ionosphere was responsible for the persistence of these plasma depletions for so long in daytime.By using the Naval Research Laboratory:Sami2 is Another Model of the Ionosphere(SAMI2),we have evaluated how plasma production and ambipolar diffusion along the magnetic field may affect the rate of plasma depletion disappearance.Simulation shows that the plasma density increases at the time of plasma depletion appearance;subsequent decreases in the plasma density appear to be responsible for the long-lasting persistence of plasma depletions during daytime.The plasma density depletion in the top side ionosphere is not filled by the plasma generated by the solar EUV productions because plasma production occurs mainly at the bottom side of the ionosphere. | Yuichi Otsuka Atsuki Shinbori Takuya Sori Takuya Tsugawa Michi Nishioka Joseph D.Huba | 2021 | Earth and Planetary Physics2021，5，5： | 2 |
| 2 | Reactive Oxygen Species-Induced Autophagic Degradation of Helicobacter pylori CagA Is Specifically Suppressed in Cancer Stem-like Cells显示文摘 | Hitoshi Tsugawa Hidekazu Suzuki Hideyuki Saya Masanori Hatakeyama Toshiya Hirayama Kenro Hirata Osamu Nagano Juntaro Matsuzaki Toshifumi Hibi | 2012 | Cell Host & Microbe2012，，6： | 2 |
| 3 | Biological role of phosphatase PTEN in cancer and tissue injury healing显示文摘 | Tsugawa K Jones MK Sugimachi K | 2002 | Front Biosci2002，7，1： | 1 |
| 4 | Bioavailabilily of calcium from calcium carbonate,DL-calcium lactate and powdered oystershell calcium in vit D-Deficient or replete rats显示文摘 | TSUGAWA N OKANO T HIGASHINO R | 1995 | Biol Pharm Bull1995，18，5： | 1 |
| 5 | High preva- lence of vitamin K and D deficiency and decreased BMD in inflammatory bowel disease显示文摘 | Kuwabara A Tanka K Tsugawa N | 2009 | Osteoporos Int2009，20，8： | 1 |
| 6 | Determination of plasma vitamin K by high-performance liquid chroma tography withuorescence detection using vitamin K analogs as internal standards显示文摘 | Kamao M Suhara Y Tsugawa N | 2005 | J Chromatogr B2005，816，： | 1 |
| 7 | Low plasma phylloquinone concentration is associated with high incidence of vertebral fracture in Japanese women显示文摘 | Tsugawa N Shiraki M Suhara Y | 2008 | J Bone Miner MeTab2008，26，： | 1 |
| 8 | High-performance diamond surface-channel fieldeffeet transistors and their operation mechanism 显示文摘 | Tsugawa K Kitatani K Noda H | 1999 | Diamond Rel Mater1999，8，25： | 1 |
| 9 | Bile acids increase levels of microRNAs 221 and 222, leading to degradation of CDX2 during esopha- geal carcinogenesis显示文摘 | Matsuzaki J Suzuki H Tsugawa H | 2013 | Gastroenterology2013，145，6： | 1 |
| 10 | Practical non-targeted gas chromatography/mass spectrometry-based metabolomics platform for metabolic phenotype analysis显示文摘 | TSUGAWA H BAMBA T SHINOHARA M | 2011 | Journal of Bioscience and Bioengineering2011，112，3： | 1 |
| 11 | New insight for management of blunt splenic trauma:significant differences between young and elderly显示文摘 | Tsugawa K Koyanagi N Hashizume M | 2002 | Hepatogast Roenterology2002，49，46： | 1 |
| 12 | Method for the determination of vitamin K homologues in human plasma using high-performance liquid chromatography-tandem mass spectrometry显示文摘 | Suhara Y Kamao M Tsugawa N | 2005 | Anal Chem2005，77，： | 1 |
| 13 | Con- trollable oxidization of boron doped nanodiamond covered with different solution via UV/ozone treatment显示文摘 | WANG X F HASEGAWA M TSUGAWA K | 2012 | Diamond and Related Materials2012，24，： | 1 |
| 14 | Sentinel node biopsy after neoadjuvant chemotherapy in cytologically proven node-positive breast cancer显示文摘 | Yagata H Yamauchi H Tsugawa K Hayashi N Yoshida A Kajiura Y | 2013 | Clin Breast Cancer2013，13，： | 1 |
| 15 | Effective treatment of young patients with pediatric-onset,long-standing lupus nephritis with tacrolimus given as a single daily dose:an open-label pilot study显示文摘 | Tanaka H Oki E Tsugawa K | 2007 | Lupus2007，16，11： | 1 |
| 16 | The effect of car- bon dioxide pneumoperitoneum on the partal hemodynamics in a portal-hypertensive rat model 显示文摘 | Tsugawa K Hashizume M Migou S | 1999 | Surg Laparose Endose Percut Tech1999，9，5： | 1 |
| 17 | Vehicle fuel consumption and emission estimation in environmental-adaptive driving with or without intervehicle communications显示文摘 | WIDODO A HASEGAWA T TSUGAWA S | 2000 | IEEE Intelligent Vehicles Symposium Dearborn MI USA2000，，： | 1 |
| 18 | Primary non-Hodgkin lym- phoma of the ureter 显示文摘 | Hashimoto H Tsugawa M Nasu Y | 1999 | BJU Int1999，83，1： | 1 |
| 19 | Chromatin remodeling at Alu repeats by epigenetic treatment activates silenced microRNA-512-5p with downregulation of Mcl-1 in human gastric cancer celts显示文摘 | Saito Y Suzuki H Tsugawa H | 2009 | Oncogene2009，28，30： | 1 |
| 20 | Absorption of calcium, mag- nesium, phosphorus, iron and zinc in growing male rats fed diets containing either phytate-free soybean protein or soybean protein isolate or casein 显示文摘 | Kamao M Tsugawa N Nakagawa K | 2000 | J Nutr Sci Vitaminol2000，46，1： | 1 |
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