检索结果-南通市图书馆

Journal of Environmental Sciences 2011年第1期23卷 139-144页

作者： Koji Inoue Hiroshi Okano Yukihiko Yamagata katsunori Muraoka Yasutake Teraoka Seibu Giken Co.Ltd. Fukuoka 811-3134Japan Department of Molecular and Material Sciences Interdisciplinary Graduate School of Engineering SciencesKyushu UniversityFukuoka 816-8580Japan Department of Engineering Sciences for Electronics and Materials Faculty of Engineering SciencesKyushu UniversityFukuoka 816-8580Japan Department of Natural Science and Mathematics College of EngineeringChubu UniversityAichi 487-8501Japan Department of Energy and Material Sciences Faculty of Engineering SciencesKyushu UniversityFukuoka 816-8580Japan

The adsorption/plasma decomposition with the combination of adsorption honeycomb-sheets and a plasma element is a new technology for small-sized apparatuses to decompose volatile organic compounds （VOCs） at concentrations lower than about 100 ppm. The feasibility of the prototype adsorption/plasma decomposition apparatus was evaluated with the simulated exhausts containing one VOC component and with real exhausts from a painting booth and an adhesion factory. The apparatus decomposed VOCs effectively at the painting booth exhaust but not always satisfactorily at the adhesion factory exhaust. The performance test results with real exhausts were discussed with respect to the concentration and discharge pattern of the exhausts and the basic properties of the system such as cooperation of adsorption and plasma reaction and the concentration dependence of the performance.

关键词： volatile organic compounds adsorption hydrophobic zeolite honeycomb plasma

Liver resection for hepatocellular carcinoma associated with hepatic vein invasion: is it time to reconsider the current treatment guidelines?

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

Hepatobiliary Surgery and Nutrition 2018年第4期7卷 300-301页

作者： katsunori Imai Hideo Baba Department of Gastroenterological Surgery Graduate School of Life Sciences Kumamoto University Kumamoto Japan

Hepatocellular carcinoma (HCC) is the most common primary liver cancer and is responsible for 70–90% of cases (1,2).The presence of macrovascular invasion such as portal vein tumor thrombus (PVTT) or hepatic vein tum... 详细信息

关键词： invasion hepatic thrombus

Helicobacter pylori-negative,non-steroidal anti-inflammatory drug:Negative idiopathic ulcers in Asia

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 2014年第3期20卷 706-713页

作者： katsunori Iijima Takeshi Kanno Tomoyuki Koike Tooru Shimosegawa Division of Gastroenterology Tohoku University Graduate School of Medicine

Since the discovery of Helicobacter pylori(***)infection in the stomach,the bacteria infection and non-steroidal anti-inflammatory drugs(NSAIDs)use had been considered to be the 2 main causes of peptic ***,there have been recent reports of an increase in the proportion of peptic ulcers without these known risk factors;these are termed idiopathic peptic *** trend was firstly indicated in 1990s from some reports in North *** Asia,numerous studies reported that idiopathic ulcers accounted for a small percentage of all ulcers in the 1990s,but in the2000s,multiple studies reported that the proportion of idiopathic ulcers had reached 10%-30%,indicating that the incidence of idiopathic ulcers in Asia has also been rising in recent *** a decline in *** infection rates of general population in Asia is seen as the main reason for the increased incidence of idiopathic ulcers,it is also possible that the absolute number of idiopathic ulcer cases has *** age,serious systemic complication,and psychological stress are considered to be the potential risk factors for idiopathic *** of idiopathic ulcers is challenging,at present,because there is no effective preventative measure against recurrence in contrast with cases of ***-positive ulcers and NSAIDs-induced *** it is expected that *** infection rates in Asia will decline further in the future,measures to treat idiopathic ulcers will also likely become more important.

关键词： Helicobacter pylori Non-steroidal anti-inflammatory drugs Idiopathic peptic ulcer

Smad3 phospho-isoform signaling in hepatitis C virus-related chronic liver diseases

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 2014年第35期20卷 12381-12390页

作者： Takashi Yamaguchi katsunori Yoshida Miki Murata Koichi Matsuzaki Department of Gastroenterology and Hepatology Kansai Medical University

The risk of hepatocellular carcinoma (HCC) development increases as hepatitis virus C (HCV)-related liver diseases progress, especially in patients with active inflammation. Insight into hepatic carcinogenesis have emerged from recent detailed analyses of transforming growth factor-β and c-Jun-N-terminal kinase signaling processes directed by multiple phosphorylated (phospho)-isoforms of a Smad3 mediator. In the course of HCV-related chronic liver diseases, chronic inflammation and host genetic/epigenetic alterations additively shift the hepatocytic Smad3 phospho-isoform signaling from tumor suppression to carcinogenesis, increasing the risk of HCC. Chronic inflammation represents an early carcinogenic step that provides a nonmutagenic tumor-promoting stimulus. After undergoing successful antiviral therapy, patients with chronic hepatitis C could experience a lower risk of HCC as Smad3 phospho-isoform signaling reverses from potential carcinogenesis to tumor suppression. Even after HCV clearance, however, patients with cirrhosis could still develop HCC because of sustained, intense carcinogenic Smad3 phospho-isoform signaling that is possibly caused by genetic or epigenetic alterations. Smad3 phospho-isoforms should assist with evaluating the effectiveness of interventions aimed at reducing human HCC.

关键词： Chronic inflammation c-Jun N-terminal kinase Hepatitis C virus Hepatocellular carcinoma Smad3 phospho-isoform signaling Transforming growth factor β

Linker phosphorylation of Smad3 promotes fibro-carcinogenesis in chronic viral hepatitis of hepatocellular carcinoma

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 2014年第41期20卷 15018-15027页

作者： Miki Murata katsunori Yoshida Takashi Yamaguchi Koichi Matsuzaki Department of Gastroenterology and Hepatology Kansai Medical University

Epidemiological and clinical data point to a close association between chronic hepatitis B virus infection or chronic hepatitis C virus infection and development of hepatocellular carcinoma (HCC). HCC develops over several decades and is associated with fibrosis. This sequence suggests that persistent viral infection and chronic inflammation can synergistically induce liver fibrosis and hepatocarcinogenesis. The transforming growth factor-β (TGF-β) signaling pathway plays a pivotal role in diverse cellular processes and contributes to hepatic fibro-carcinogenesis under inflammatory microenvironments during chronic liver diseases. The biological activities of TGF-β are initiated by the binding of the ligand to TGF-β receptors, which phosphorylate Smad proteins. TGF-β type I receptor activates Smad3 to create COOH-terminally phosphorylated Smad3 (pSmad3C), while pro-inflammatory cytokine-activated kinases phosphorylates Smad3 to create the linker phosphorylated Smad3 (pSmad3L). During chronic liver disease progression, virus components, together with pro-inflammatory cytokines and somatic mutations, convert the Smad3 signal from tumor-suppressive pSmad3C to fibro-carcinogenic pSmad3L pathways, accelerating liver fibrosis and increasing the risk of HCC. The understanding of Smad3 phosphorylation profiles may provide new opportunities for effective chemoprevention and personalized therapy for patients with hepatitis virus-related HCC in the future.

关键词： Chronic viral hepatitis Transforming growth factor-β Smad3 Phosphorylation Fibro-carcinogenesis Hepatocellular carcinoma

Long-term health-related quality of life of living liver donors:what should the transplant team know?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary Surgery and Nutrition 2021年第3期10卷 394-396页

作者： Kohei Ogawa katsunori Sakamoto Yasutsugu Takada Department of Hepatobiliary Pancreatic and Breast Surgery Ehime UniversityShitsukawaToonEhimeJapan

Living-donor liver transplantation(LDLT)has been established as an alternative to deceased donor liver transplantation as a treatment option for patients with end-stage liver *** in Japan,where the number of deceased donor liver transplants is extremely small compared to Western countries,LDLT still accounts for the majority of liver transplants.

关键词： liver donor patients

Coagulation and ablation of biological soft tissue byquantum cascade laser with peak wavelength of 5.7μm

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 Innovative Optical Health Sciences 2014年第3期7卷 115-123页

作者： Keisuke Hashimura katsunori Ishii Naota Akikusa Tadataka Edamura Harumasa Yoshida Kunio Awazu Medical Beam Physics Laboratory Division of Sustainable Energy and Environmental EngineeringGraduate School of Engineering Osaka UiniversityJapan Hamamatsu Photonics K.K.Japan Graduate School of Frontier Biosciences Osaka UniversityJapan The Center for Advanced Medical Engineering and Informatics Osaka University Japan

Molecules such as water,proteins and lipids that are contained in biological tissue absorb mid-infrared(MR)light,which allows such light to be used in laser surgical ***,amides and water exhibit strong absorption bands in the 5-7μm wavelength range,but at present there are no lasers in clinical use that can emit in this ***,the present study focused on thequantum cascade laser(QCL),which is a new type of semiconductor laser that can emit at MIRwavelengths and has recentiy achieved high output power.A high-power QCL with a peakwavelength of 5.7μm was evaluated for use as a laser scalpel for ablating biological soft *** interaction of the laser beam with chicken breast tissue was compared to a conventional CO_(2) laser,based on surface and cross-sectional *** QCL was found to have sufficient power to ablate soft tissue,and its coagulation,carbonization and ablation effects were similar to those forthe CO_(2) *** QCL also induced comparable photothermal effects because it acted as apseudo-continuous wave laser due to its low peak power.A QCL can therefore be used as an effective laser scalpel,and also offers the possibility of less invasive treatment by targeting specificabsorption bands in t he MIR region.

关键词： Quantum cascade laser mid-infrared wavelength CO,laser biological soft tissue laser-tissue interaction.

Biliary tuberculosis causing cicatricial stenosis after oral anti-tuberculosis therapy

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 2006年第30期12卷 4914-4917页

作者： Tomohisa Iwai Mitsuhiro Kida Yoshiki Kida Nobuaki Shikama Akitaka Shibuya katsunori Saigenji Department of Gastroenterology Kitasato University East Hospital Sagamihara Japan

A 36-year-old Philippine woman presented with dark urine and yellow sclera. Endoscopic retrograde cholangiopancreatography （ERCP） confirmed dilatation of the intrahepatic bile ducts and also showed an irregular stricture of the common hepatic duct at the liver hilum. Histological examination of biopsies from the bile duct revealed epithelioid cell granulomas and caseous necrosis. Tubercle bacilli were then detected on polymerase chain reaction （PCR） testing of the bile, giving the diagnosis of biliary tuberculosis. Although microbiological cure was confirmed, the patient developed cicatricial stenosis of the hepatic duct. She underwent repeated treatments with endoscopic biliary drainage （EBD） tubes and percutaneous transhepatic biliary drainage （PTBD） tubes, and the stenosis was corrected after 6 years. We present a case of tuberculous biliary stricture, a condition that requires careful differentiation from the more common malignancies and needs long-term follow-up due to the risk of posttreatment cicatricial stenosis, although it is rare.

关键词： Biliary tuberculosis Obstructive jaundice Cicatricial stenosis Polymerase chain reaction

Electronic transmission of three-terminal pyrene molecular bridge

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2009年第2期18卷 501-505页

作者：王利光张秀梅 Terence Kin Shun Wong katsunori Tagami Masaru Tsukada School of Science Jiangnan University School of Electrical and Electronic Engineering Nanyang Technological University Nano Technology Research Centre Waseda University

This paper investigates theoretically the electronic transmission spectra of the three terminal pyrene molecular bridge and the quantum current distribution on each bond by the tight-binding model based on nonequilibrium Green＇s function and the quantum current density approach, in which one π molecular orbital is taken into account per carbon atom when the energy levels and HOMO-LUMO gap are obtained. The transmission spectra show that the electronic transmission of the three terminal pyrene molecular bridge depends obviously on the incident electronic energy and the pyrene eigenenergy. The symmetrical and oscillation properties of the transmission spectra are illustrated. A novel plus-minus energy switching function is found. The quantum current distribution shows that the loop currents inside the pyrene are induced, and some bond currents are much larger than the input and the output currents. The reasons why the loop currents and the larger bond currents are induced are the phase difference of the atomic orbits and the degeneracy of the molecular orbits. The calculations illustrate that the quantum current distributions are in good agreement with Kirchhoff quantum current conservation law.

关键词： pyrene three terminals electronic transmission current distribution

Clinicopathological features and prognosis of surgical resected cases of biliary cancer with pancreaticobiliary maljunction

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

Hepatobiliary & Pancreatic Diseases International 2020年第1期19卷 97-100页

作者： Tsukasa Takayashiki Hideyuki Yoshitomi katsunori Furukawa Satoshi Kuboki Masaru Miyazaki Masayuki Ohtsuka Department of General Surgery Graduate School of MedicineChiba University Department of Gastroenterological Surgery Mita HospitalInternational University of Health and Welfare

To the Editor:Pancreaticobiliary maljunction(PBM)is a congenital anomaly in which the pancreatic and bile ducts join anatomically outside of the duodenal wall away from the Oddi’s *** condition causes the reflux of pancreatic juice into the bile duct under high pressure,resulting in various pathologic *** features of PBM patients are common bile duct dilatation,long common channel,and high amylase levels in bile *** them,one of the most significant problems is the development of biliary cancer,including extrahepatic bile duct and gallbladder cancers[1].A nationwide survey in Japan reported biliary cancer in 21.6%of adult patients with PBM concomitant with congenital biliary dilatation,32.1%and 62.3%extrahepatic bile duct and gallbladder cancers,respectively[2].

关键词： biliary cancer congenital