检索结果-南通市图书馆

Randomized controlled trial of pancreatic stenting to prevent pancreatitis after endoscopic retrograde cholangiopancreatography

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2012年第14期18卷 1635-1641页

作者： Yoshiaki Kawaguchi Masami ogawa Fumio Omata Hiroyuki Ito Tooru Shimosegawa Tetsuya Mine Division of Gastroenterology Tokai University School of MedicineIsehara 259-1193Japan Division of Gastroenterology Tohoku University Graduate School of Medicine1-1 Seiryo-machiAobakuSendai CityMiyagi 980-8574Japan

AIM:To determine the effectiveness of pancreatic duct(PD) stent placement for the prevention of pancreatitis after endoscopic retrograde cholangiopancreatography(ERCP) in high risk ***:Authors conducted a single-blind,randomized controlled trial to evaluate the effectiveness of a pancreatic spontaneous dislodgement stent against post-ERCP pancreatitis,including rates of spontaneous dislodgement and *** defined high risk patients as having any of the following:sphincter of Oddi dysfunction,difficult cannulation,prior history of post-ERCP pancreatitis,pre-cut sphincterotomy,pancreatic ductal biopsy,pancreatic sphincterotomy,intraductal ultrasonography,or a procedure time of more than 30 *** were randomized to a stent group(n = 60) or to a non-stent group(n = 60).An abdominal radiograph was obtained daily to assessspontaneous stent ***-ERCP pancreatitis was diagnosed according to consensus ***:The mean age(± standard deviation) was 67.4 ± 13.8 years and the male:female ratio was 68:*** the stent group,the mean age was 66 ± 13 years and the male:female ratio was 33:27,and in the non-stent group,the mean age was 68 ± 14 years and the male:female ratio was 35:*** were no significant differences between groups with respect to age,gender,final diagnosis,or type of endoscopic *** frequency of post-ERCP pancreatitis in PD stent and non-stent groups was 1.7%(1/60) and 13.3%(8/60),*** severity of pancreatitis was mild in all *** frequency of post-ERCP pancreatitis in the stent group was significantly lower than in the non-stent group(P = 0.032,Fisher's exact test).The rate of hyperamylasemia were 30%(18/60) and 38.3%(23 of 60) in the stent and non-stent groups,respectively(P = 0.05,χ2 test).The placement of a PD stent was successful in all 60 *** rate of spontaneous dislodgement by the third day was 96.7%(58/60),and the median(range) time to dislodgement was 2.1(2-

关键词： Endoscopic retrograde cholangiopancreatography Pancreatitis Postoperative complications Prophylaxis Stents

Direct Dimethyl Ether Synthesis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Natural Gas Chemistry 2003年第4期12卷 219-227页

作者： Takashi ogawa Norio Inoue Tutomu Shikada Yotaro Ohno DME Development Co LtdShoro-koku ShiranukachHokkaido 088-0563 JapanDME Development CoLtdShoro-koku ShiranukachHokkaido 088-0563 JapanDME Development CoLtdShoro-koku ShiranukachHokkaido 088-0563 JapanDME Development CoLtdShoro-koku ShiranukachHokkaido 088-0563 Japan

Dimethyl ether (DME) is a clean and economical alternative fuel which can beproduced from natural gas through synthesis gas. The properties of DME are very similar to those ofLP gas. DME can be used for various fields as a fuel such as power generation, transportation, homeheating and cooking, etc. It contains no sulfur or nitrogen. It is not corrosive to any metal andnot harmful to human body. An innovative process of direct synthesis of DME from synthesis gas hasbeen developed. Newly developed catalyst in a slurry phase reactor gave a high conversion and highselectivity of DME production. One and half year pilot scale plant (5 tons per day) testing, whichwas supported by METI, had successfully finished with about 400 tons DME production.

关键词： dimethyl ether DME slurry reactor natural gas syn-gas coal clean fuel diesel engine

Visual localization for asteroid touchdown operation based on local image features

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Astrodynamics 2020年第2期4卷 149-161页

作者： Yoshiyuki Anzai Takehisa Yairi Naoya Takeishi Yuichi Tsuda Naoko ogawa The University of Tokyo Tokyo113-8654Japan RIKEN Center for Advanced Intelligence Project Tokyo103-0027Japan Japan Aerospace Exploration Agency Sagamihara252-5210Japan

In an asteroid sample-return mission,accurate position estimation of the spacecraft relative to the asteroid is essential for landing at the target *** the missions of Hayabusa and Hayabusa2,the main part of the visual position estimation procedure was performed by human operators on the Earth based on a sequence of asteroid images acquired and sent by the *** this approach is still adopted in critical space missions,there is an increasing demand for automated visual position estimation,so that the time and cost of human intervention may be *** this paper,we propose a method for estimating the relative position of the spacecraft and asteroid during the descent phase for touchdown from an image sequence using state-of-the-art techniques of image processing,feature extraction,and structure from *** apply this method to real Ryugu images that were taken by Hayabusa2 from altitudes of 20 km-500 *** is demonstrated that the method has practical relevance for altitudes within the range of 5-1 *** result indicates that our method could improve the efficiency of the ground operation in the global mapping and navigation during the touchdown sequence,whereas full automation and autonomous on-board estimation are beyond the scope of this ***,we discuss the challenges of developing a completely automatic position estimation framework.

关键词： visual navigation structure from motion asteroid touchdown Hayabusa2

Effect of high-frequency loading and parathyroid hormone administration on peri-implant bone healing and osseointegration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Oral Science 2018年第1期10卷 50-64页

作者： Aya Shibamoto Toru ogawa Joke Duyck Katleen Vandamme Ignace Naert Keiichi Sasaki Division of Advanced Prosthetic Dentistry Tohoku University Graduate School of Dentistry Department of Oral Health Sciences Prosthetic DentistryBIOMAT-BiomaterialsKatholieke Universiteit Leuven

The objective of this study is to examine the effect of low-magnitude, high-frequency(LMHF) loading, and anti-osteoporosis medications such as parathyroid hormone(PTH) and bisphosphonates on peri-implant bone healing in an osteoporosis model, and to assess their combined effects on these processes. Thirteen-week-old ovariectomized rats(n = 44) were divided into three groups:PTH, alendronate, and saline. After 3 weeks of drug administration, titanium implants were inserted into the tibiae. Each group was subdivided into two groups: with or without LMHF loading via whole-body vibration(50 Hz at 0.5 g, 15 min per day, 5 days per week). Rats were killed 4 weeks following implantation. Removal torque test, micro-CT analyses(relative gray(RG) value, water = 0,and implant = 100), and histomorphometric analyses(bone-to-implant contact(BIC) and peri-implant bone formation(bone volume/tissue volume(BV/TV))) were performed. Removal torque values and BIC were significantly differed by loading and drug administration(ANOVA). Post hoc analysis showed that PTH-treated groups were significantly higher than the other drug-treated groups. BV/TV was significantly enhanced by PTH administration. In cortical bone, RG values were significantly increased by *** trabecular bone, however, RG values were significantly increased by PTH administration. These findings suggest that LMHF loading and PTH can act locally and additively on the bone healing process, improving the condition of implant osseointegration.

关键词：

Gastric mixed adenoma-neuroendocrine tumor:A case report

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2020年第22期8卷 5744-5750页

作者： Shuzo Kohno Hiroaki Aoki Masayuki Kato Masaich ogawa Kazuhiko Yoshida Department of Surgery The Jikei University Katsushika Medical CenterTokyo 125-8506Katsushika-kuJapan Department of Endoscopy The Jikei University Katsushika Medical CenterTokyo 125-8506Katsushika-kuJapan

BACKGROUND Gastric mixed adenoma-neuroendocrine tumors(NETs)are quite *** the 2019 world health organization classification of tumors of the digestive system,these were designated as a combination of grade 1 or grade 2 NETs and adenomas or tubular *** are no treatment guidelines for these tumors,and pathological and clinical studies are ***,we review previous case reports and present a case of gastric mixed *** SUMMARY A 66-year-old man underwent gastrointestinal endoscopy for the evaluation of upper abdominal *** examination of the biopsy specimen indicated the possibility of gastric cancer.A histopathological examination by endoscopic submucosal dissection showed a mixed adenoma-NET that was completely excised by endoscopic submucosal *** recurrence was observed on gastrointestinal endoscopy at the 6-mo *** Clinicians'awareness of this rare tumor is important for its timely diagnosis and treatment.

关键词： Adenoma Neuroendocrine tumor Diagnosis Pathology Stomach treatment Case report

<i>Spitzer</i>IRAC Colors of Nebulae Associated with Star-Forming Regions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Astronomy and Astrophysics 2019年第1期9卷 39-50页

作者： Yoichi Itoh yumiko Oasa Nishi-Harima Astronomical Observatory Center for Astronomy University of Hyogo Sayo Hyogo Japan Faculty of Education Saitama University Saitama Japan

Star-forming regions are often associated with nebulosity. In this study, we investigated infrared diffuse emission in Spitzer IRAC images. The infrared nebula L1527 traces outflows emanating from a low-mass protostar. The nebular color is consistent with the color of a stellar photosphere with large extinction. Nebulae around the HII region W5-East are bright in the infrared. These colors are consistent with the model color of dust containing polycyclic aromatic hydrocarbon (PAH). The strength of ultraviolet irradiation of the nebulae and the small dust fraction were deduced from the infrared colors of the nebulae. We found that the edges of the nebulae are irradiated by strong ultraviolet radiation and have abundant small dust. Dust at the surface of the molecular cloud is thought to be destroyed by ultraviolet radiation from an early-type star.

关键词： Interstellar Medium Dust Extinction HII Regions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

韩式裱花蛋糕基础

Toward Seamless Indoor-Outdoor Applications:Developing Stakeholder-Oriented Location-Based Services

作者： yumiko

来源：南通市图书馆图书评论

学校读者我要写书评

暂无评论

Geo-Spatial Information Science 2011年第2期14卷 109-118页

作者： Kohei ogawa Edward VERBREE Sisi ZLATANOVA Naohiko KOHTAKE Yoshiaki OHKAMI Graduate School of System Design and Management Keio University GISt OTBDelft University of Technology

Location-Based Services (LBS),an emerging new business based on smartphone and mobile networks,are becoming more and more *** of these LBSs,however,only offer non-seamless indoor/outdoor applications and simple applications without giving stakeholders the chance to play an active *** specific aim is to solve these *** paper presents concepts to solve these issues by expanding the Open Location Services Interface Standard (OpenLS) to allow seamless indoor/outdoor positioning and to extend the content of the services to include information recommended by stakeholders.

关键词： location based services OpenLS stakeholder seamless indoor outdoor applications standardized IMES

Nafamostat mesylate-induced hyperkalemia in critically ill patients with COVID-19: Four case reports

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2020年第21期8卷 5320-5325页

作者： Masaki Okajima Yoshinori Takahashi Takaaki Kaji Naohiko ogawa Hideyuki Mouri Intensive Care Unit Kanazawa University HospitalKanazawa 920-8641IshikawaJapan Department of Rheumatology Kanazawa University HospitalKanazawa 920-8641IshikawaJapan Department of Nephrology Kanazawa University HospitalKanazawa 920-8641IshikawaJapan Department of Respiratory Medicine Kanazawa University HospitalKanazawa 920-8641IshikawaJapan

BACKGROUND Nafamostat mesylate(NM)may prove to be one of the key drugs effective against coronavirus disease 2019(COVID-19)because of its anti-viral properties and the potential to manage ***,NM tends to increase serum potassium *** SUMMARY We observed hyperkalemia immediately after NM administration(200 mg/d)in four consecutive patients who were admitted to the Kanazawa University Hospital with severe COVID-19 *** potassium excretion decreased after NM administration in three patients who underwent *** NM is likely to produce hyperkalemia in patients with ***,it is necessary to monitor serum potassium values closely after NM initiation in COVID-19 patients who need respiratory support.

关键词： COVID-19 Nafamostat Hyperkalemia Disseminated intravascular coagulation Respiratory insufficiency Case report