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| 1 | 精确测量的地幔体波走时及地幔非均匀性的强度(英文)显示文摘用波形相关法精确地测定了在世界各地发生的87个6级以上地震的P波, PP波和Pdiff波的503个走时数据。记录这些地震波形的是新建于西太平洋地区的海洋半球地震观测网。我们利用这些高精度的走时数据研究了地幔体波的走时残差的范围及地幔非均匀性的强度。结果表明,P波、PP波和Pdiff波的走时残差最大分别为9 s ,11 s和15 s ,这为地幔层析成像反演中应该使用的体波走时残差数据的范围提供了重要信息。超出这一范围的走时残差数据不应该用于反演中,以免歪曲成像结果。我们发现,当震中距小于40°时,P波走时残差的范围为-6到+9 s。而对于40°到99°之间的震中距,P波走时残差的范围为-3到+5s。由于震中距越大,P波穿透地幔越深,我们这一结果提供了直接和确凿的证据,表明上地幔和地幔转换带中的横向非均匀性的强度要远胜于下地幔。我们精确测量的Pdiff波的走时数据表明,在地幔底部存在显著的低速异常,可能与地幔热柱或者超级地幔柱有关。我们使用了一个最新的三维全球层析成像模型来解释这些体波走时数据的空间变化。 | Akira YAMADA Yuhei OHTA | 2006 | 地学前缘2006，13，2： | 9 |
| 2 | Survival of geriatric patients after percutaneous endoscopic gastrostomy in Japan显示文摘AIM: To examine the long term survival of geriatric patients treated with percutaneous endoscopic gastrostomy (PEG) in Japan. METHODS: We retrospectively included 46 Japanese community and tertiary hospitals to investigate 931 consecutive geriatric patients (≥ 65 years old) with swallowing difficulty and newly performed PEG between Jan 1st 2005 and Dec 31st 2008. We set death as an outcome and explored the associations among patient’s characteristics at PEG using log-rank tests and Cox proportional hazard models. RESULTS: Nine hundred and thirty one patients were followed up for a median of 468 d. A total of 502 deaths were observed (mortality 53%). However, 99%, 95%, 88%, 75% and 66% of 931 patients survived more than 7, 30, 60 d, a half year and one year, respectively. In addition, 50% and 25% of the patients survived 753 and 1647 d, respectively. Eight deaths were considered as PEG-related, and were associated with lower serum albumin levels (P = 0.002). On the other hand, among 28 surviving patients (6.5%), PEG was removed. In a multivariate hazard model, older age [hazard ratio (HR), 1.02; 95% confidence interval (CI), 1.00-1.03; P = 0.009], higher C-reactive protein (HR, 1.04; 95% CI: 1.01-1.07; P = 0.005), and higher blood urea nitrogen (HR, 1.01; 95% CI: 1.00-1.02; P = 0.003) were significant poor prognostic factors, whereas higher albumin (HR, 0.67; 95% CI: 0.52-0.85; P = 0.001), female gender (HR, 0.60; 95% CI: 0.48-0.75; P < 0.001) and no previous history of ischemic heart disease (HR, 0.69; 95% CI: 0.54-0.88, P = 0.003) were markedly better prognostic factors. CONCLUSION: These results suggest that more than half of geriatric patients with PEG may survive longer than 2 years. The analysis elucidated prognostic factors. | Yutaka Suzuki Seryna Tamez Akihiko Murakami Akihiko Taira Akihiro Mizuhara Akira Horiuchi Chie Mihara Eiji Ako Hirohito Muramatsu Hitoshi Okano Hitoshi Suenaga Kazuaki Jomoto Junya Kobayashi Katsunari Takifuji Kazuhiro Akiyama Koh Tahara Koji Onishi Makoto Shimazaki Masami Matsumoto Masashi Ijima Masato Murakami Masato Nakahori Michiaki Kudo Michio Maruyama Mikako Takahashi Naohiro Washizawa Shigeru Onozawa Satoshi Goshi Satoyoshi Yamashita Shigeki Ono Shin Imazato Shinji Nishiwaki Shuichirou Kitahara Takao Endo Takao Iiri Takeshi Nagahama Takuto Hikichi Tatsuya Mikami Tetsuo Yamamoto Tetsushi Ogawa Tomoko Ogawa Tomoyuki Ohta Toshifumi Matsumoto Toshiroh Kura Tsutomu Kikuchi Tsuyoshi Iwase Tsuyotoshi Tsuji Yukio Nishiguchi Mitsuyoshi Urashima | 2010 | World Journal of Gastroenterology2010，16，40： | 4 |
| 3 | Long-term Outcome after Proximal Gastrectomy with Jejunal Interposition for Gastric Cancer Compared with Total Gastrectomy显示文摘 | Isao Nozaki Shinji Hato Takaya Kobatake Koji Ohta Yoshirou Kubo Akira Kurita | 2013 | World Journal of Surgery2013，，3： | 3 |
| 4 | Gastric endoscopic submucosal dissection via gastrostoma before the second operation for esophageal perforation: A case report显示文摘A 69-year-old man with advanced esophageal cancer and 2 early gastric cancers received chemoradiotherapy and was scheduled to undergo subtotal esophagectomy after gastric endoscopic submucosal dissection(ESD). However, left lower esophageal perforation induced by vomiting suddenly occurred, and he urgently underwent esophago-proximal gastrectomy and gastrostomy without reconstruction. The resected specimen showed a complete response of pretreatment for the esophageal cancer and radical resection of one gastric cancer. Radical resection of the other gastric lesion was necessary before reconstruction. The fistula of gastrostoma was gradually dilated from 6.7 to 9.3 mm in order to pass the endoscope. At nine months after emergent operation, gastric ESD was performed via only the gastrostoma. A hemoclip with thread was attached to the specimen, and the thread was pulled out of the gastrostoma. The specimen was able to be removed en bloc, resulting in radical resection. Gastric tube reconstruction through the posterior sternal route was performed at six months after the ESD. He has not developed recurrence of the esophageal or gastric cancer in the two years since the emergent operation. | Takuma Sasaki Masaya Uesato Takumi Ohta Kentarou Murakami Akira Nakano Hisahiro Matsubara | 2018 | World Journal of Gastrointestinal Endoscopy2018，10，6： | 3 |
| 5 | Analysis of circulating tumor cells derived from advanced gastric cancer显示文摘 | Kosei Toyoshima Akira Hayashi Masahide Kashiwagi Naoko Hayashi Masaaki Iwatsuki Takatsugu Ishimoto Yoshifumi Baba Hideo Baba Yoshikazu Ohta | 2015 | Int. J. Cancer2015，，4： | 2 |
| 6 | Introduc- tion of the methyl group into the pyrazine ring 显示文摘 | Akihiro Ohta Akira Inoue Tokuhiro Watanabe | 1984 | Hetero- cycles1984，22，10： | 1 |
| 7 | Efficacy and tolerability of once-weekly administration of 17.5?mg risedronate in Japanese patients with involutional osteoporosis: a comparison with 2.5-mg once-daily dosage regimen显示文摘 | Hideaki Kishimoto Masao Fukunaga Kazuhiro Kushida Masataka Shiraki Akira Itabashi Hajime Nawata Toshitaka Nakamura Hiroaki Ohta Kunio Takaoka Yasuo Ohashi | 2006 | Journal of Bone and Mineral Metabolism2006，，5： | 1 |
| 8 | Deficiency in Mitochondrial Aldehyde Dehydrogenase Increases the Risk for Late-Onset Alzheimer’s Disease in the Japanese Population显示文摘 | Kouzin Kamino Keiko Nagasaka Masaki Imagawa Hideki Yamamoto Hiroshi Yoneda Akira Ueki Shin Kitamura Kazuhiko Namekata Tetsuro Miki Shigeo Ohta | 2000 | Biochemical and Biophysical Research Communications2000，，1： | 1 |
| 9 | Preparation Of Heteroarenecarbonitriles By Reaction Of Haloheteroarenes With Potassium Cyanide Catalyzed By Sodium Ptoluenesulflnate显示文摘 | Akira Miyashita Yumiko Suzuki Kiyono Ohta | | 0，，01： | 1 |
| 10 | Isolation and characterization of a Na+/H+ antiporter gene from the halophyte Atriplex gmelini显示文摘 | Akira Hamada Mariko Shono Tao Xia Masaru Ohta Yasuyuki Hayashi Akira Tanaka Takahiko Hayakawa | 2001 | Plant Molecular Biology2001，，1： | 1 |
| 11 | 日本化学外加剂发展的新趋势(上) | Etsuo Sakai Atsumu Ishida Akira Ohta 罗小红 | 2007 | 商品混凝土2007，0，2： | 1 |
| 12 | Molecular structure and dlspersion-adsorption mechanisms of comb-type superplasticizers used in Japan 显示文摘 | Etsuo Saka Kazuo Yamada Akira Ohta | 2003 | Journal of Advanced Concrete Technology2003，1，1： | 1 |
| 13 | Probability of the freak wave appearance in a 3 - dimensional sea condition显示文摘 | Akira Kimura Takao Ohta | 1994 | Japan Society of Civil Engineers ASCE1994，，： | 1 |
| 14 | Molecular structure and dispersion-adsorption mechanisms of comb-type superplasticizers used in Japan显示文摘 | Etsuo Sakai Kazuo Yamada Akira Ohta | 2003 | Journal of Advanced Concrete Technology2003，1，1： | 1 |
| 15 | Dietary α-linolenate linoleate balance influences learning and memory in the senescence-accelerated mouse (SAM)显示文摘 | Makiko Umezawa Akira Ohta Hiromasa Tojo | 1995 | Brain Research1995，669，： | 1 |
| 16 | Isolation and characterization of a Na+/H+ antiporter gene from the halophyte Atriplex gmelini显示文摘 | Akira Hamada Mariko Shono Tao Xia Masaru Ohta Yasuyuki Hayashi Akira Tanaka Takahiko Hayakawa | 2001 | Plant Molecular Biology2001，，1： | 1 |
| 17 | New trends in the development of chemical admixtures in Japan显示文摘 | ETSUO Sakai ATSUMU lshida AKIRA Ohta | 2006 | J Adv Concr Technol2006，4，2： | 1 |
| 18 | Development of nickel/metal-hydroxide batteries for EVs and HEVs 显示文摘 | Akihiro Taniguchi Noriyuki Fujioka Munehisa Ikoma Akira Ohta | 2001 | Journal of Power Sources2001，100，： | 1 |
| 19 | Endoscopic stent placement above the intact sphincter of Oddi for biliary strictures after living donor liver transplantation显示文摘 | Akira Kurita Yuzo Kodama Ryuki Minami Yojiro Sakuma Katsutoshi Kuriyama Wataru Tanabe Yuji Ohta Takahisa Maruno Masahiro Shiokawa Yugo Sawai Norimitsu Uza Shujiro Yazumi Atsushi Yoshizawa Shinji Uemoto Tsutomu Chiba | 2013 | Journal of Gastroenterology2013，，9： | 1 |
| 20 | 日本化学外加剂发展的新趋势(下) | Etsuo Sakai Atsumu Ishida Akira Ohta 罗小红 | 2007 | 商品混凝土2007，0，3： | 1 |
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