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Discharge Characteristics of Micro-Needle Array Diamond Structure

Journal of Chemistry and Chemical Engineering 2011年第8期5卷 720-723页

作者： Takayuki Misu Tsukasa Higa Shimon Ono Miki Goto toshihiko arai Department of Home Electronics Engineering Kanagawa Institute of Technology 1030 Shimo-Ogino Atsugi 243-0292 Japan Department of Electrical and Electronic Engineering Kanagawa Institute of Technology 1030 Shimo-Ogino Atsugi 243-0292 Japan

CVD polycrystalline diamond surfaces were etched using reactive ion etching system with either a conventional stainless steel electrode or MgO sintered ceramic containing electrode. The micro-needle array of high aspect on diamond substrate surfaces obtained with MgO electrode was fabricated by using back-sputtering from MgO electrode. The RMS roughness of diamond substrate surfaces obtained with MgO electrode is higher than those obtained with stainless steel electrode. The secondary electron emission coefficient in Ne gas of the diamond obtained with MgO electrode was twice that obtained with the stainless steel electrode.

关键词： CVD diamond Secondary electron emission coefficient Breakdown voltage LCD backlighting Cold cathode back-sputtering.

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DRUG RESISTANT AND BIOACTIVE E COLI IN BEIJING

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中华医学杂志(英文版) 1984年第11期97卷 824-824页

作者： toshihiko arai Sadao Komatsu Md. Alshad Ullah Department of Microbiotogy Keio University School of Medicine Japan

We surveyed antibiotic resistant and various bioactive Escherichia coli strains isolated in the Capital Hospital in Beijing in 1981. It was found that most of the clinical strains in Beijing were antibiotic resistant. Tetracycline resistant strains were most prevalent (92%), and incidences of resistant strains to streptomycin, sulfonamides, chloramphenicol, ampicillin and kanamycin decreased in this order, suggesting that tetracycline derivatives were widely used in Beijing. Incidence of conjugative R plasmids in Beiijng (38%) was same as that in Tokyo and lower than that in Moscow. We examined hemagglutination, the common antigens with small intestine adhesive bacteria, colicin production, enterotoxin production, DNase production, invading ability into intestinal epithelial cells, active iron incorporating ability and capsules of the collected strains and found that incidences of these bioactive strains were not so different from those in Tokyo, although minor differences were found in many characters. None of the genes for these bioactive characters were found on the highly conjugative plasmids. This lower incidences of bioactive as well as conjugative R plasmids in Beiijng and Tokyo than those in Moscow suggested that plasmids in E coli strains in Beijing were similar to those in Tokyo but different from those in Moscow.

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Utility of plasma D-dimer for diagnosis of venous thromboembolism after hepatectomy

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World Journal of Clinical Cases 2024年第2期12卷 276-284页

作者： Taiichiro Miyake Hiroaki Yanagimoto Daisuke Tsugawa Masayuki Akita Riki Asakura Keisuke arai toshihiko Yoshida Shinichi So Jun Ishida Takeshi Urade Yoshihide Nanno Kenji Fukushima Hidetoshi Gon Shohei Komatsu Sadaki Asari Hirochika Toyama Masahiro Kido Tetsuo Ajiki Takumi Fukumoto Division of Hepato-Biliary-Pancreatic Surgery Department of SurgeryKobe University Graduate School of MedicineKobe 650-0017HyogoJapan

BACKGROUND Venous thromboembolism(VTE)is a potentially fatal complication of *** use of postoperative prophylactic anticoagulation in patients who have undergone hepatectomy is controversial because of the risk of postoperative ***,we hypothesized that monitoring plasma D-dimer could be useful in the early diagnosis of VTE after *** To evaluate the utility of monitoring plasma D-dimer levels in the early diagnosis of VTE after *** The medical records of patients who underwent hepatectomy at our institution between January 2017 and December 2020 were retrospectively *** were divided into two groups according to whether or not they developed VTE after hepatectomy,as diagnosed by contrast-enhanced computed tomography and/or ultrasonography of the lower *** factors,including demographic data and perioperative D-dimer values,were compared between the two *** operating characteristic curve analysis was performed to determine the D-dimer cutoff *** and multivariate analyses were performed using logistic regression analysis to identify significant *** In total,234 patients who underwent hepatectomy were,of whom(5.6%)were diagnosed with VTE following hepatectomy.A comparison between the two groups showed significant differences in operative time(529 vs 403 min,P=0.0274)and blood loss(530 vs 138 mL,P=0.0067).The D-dimer levels on postoperative days(POD)1,3,5,7 were significantly higher in the VTE group than in the non-VTE *** the multivariate analysis,intraoperative blood loss of>275 mL[odds ratio(OR)=5.32,95%confidence interval(CI):1.05-27.0,P=0.044]and plasma D-dimer levels on POD 5≥21μg/mL(OR=10.1,95%CI:2.04-50.1,P=0.0046)were independent risk factors for VTE after *** Monitoring of plasma D-dimer levels after hepatectomy is useful for early diagnosis of VTE and may avoid routine prophylactic anticoagulation in the

关键词： Hepatectomy Malignant tumor Postoperative complication D-dimer Early diagnosis Venous thromboembolism

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PLASMID DNA SURVEY OF CLINICALLY ISOLATED SHIGELLA STRAINS IN SHANGHAI AREA

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中华医学杂志(英文版) 1988年第5期101卷 352-352页

作者： toshihiko arai Takashi Sasahira Takehiro Sakaguchi Sanae Sakaguchi Iwao Nakamura Yoshiro Kudo Fu Wang Yong-xin Zhang Yu-kin Liu Huilan Sima Department of Microbiology Meiji College of Pharmacy Tokyo Department of Hygiene St. Marianna University School of Medicine Kawasaki Clinical Research Institute of Antibiotics Huashan Hospital Shanghai Medical University Shanghai Hygiene and Antiepidemic Center Shanghai

Plasmids and biological characteristics of Shigela-strains isolated in Shanghai were studied for comparison with those of strains isolated in Tokyo from travellers back from various areas of South East Asia. Invasive ability was confirmed to be related to 140 or 120 mega dalton (M) plasmids. Thirty to 70 M plasmids were found to be conjugative R plasmids. Incidences of ampicillin, trimethoprim and mercury resistant strains (R plasmids) were higher in Shanghai strains than in South East Asian strains. A variety of small plasmids were detected in all strains. In S flexneri strains, 2.0 and 2.6 M plasmids were found to be common in the strains from both areas, and in Sonnei strains, 3.4 M col El plasmids were common. The plasmid patterns formed by the small plasmid combinations were not always specific for species or serotype. But at least these small plasmid DNA patterns could be used to trace epidemic strains.

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