检索结果-南通市图书馆

Late-onset acute rejection after living donor liver transplantation

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41期12卷 6674-6677页

作者： Nobuhisa Akamatsu Yasuhiko Sugawara Sumihito Tamura Junichi Keneko yuichi Matsui Kiyoshi Hasegawa Masatoshi Makuuchi Artificial Organ and Transplantation Surgery Division Department of SurgeryGraduate School of MedicineUniversity of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-8655Japan

AIM： TO investigate the incidence and risk factors of late-onset acute rejection （LAR） and to clarify the effectiveness of our immunosuppressive regime consisting of life-long administration of tacrolimus and steroids. METHODS： Adult living donor liver transplantation recipients （n = 204） who survived more than 6 mo after living donor liver transplantation were enrolled. Immunosuppression was achieved using tacrolimus and methylprednisolone. When adverse effects of tacrolimus were detected, the patient was switched to cyclosporine. Six months after transplantation, tacrolimus or cyclosporine was carefully maintained at a therapeutic level. The methylprednisolone dosage was maintained at 0.05 mg/kg per day by oral administration. Acute rejections that occurred more than 6 mo after the operation were defined as late-onset. The median follow-up period was 34 too. RESULTS： LAR was observed in 15 cases （7%） and no chronic rejection was observed. The incidence of hyperlipidemia, chronic renal failure, new-onset post-transplantation diabetes, and deep fungal infection were 13%, 2%, 24%, and 17%, respectively. Conversion from tacrolimus to cyclosporine was required in 38 patients （19%）. Multivariate analysis revealed that a cyclosporine-based regimen was significantly associated with *** happen at a low incidence, supporting the safety and efficacy of the present immunosuppression regimen for living donor liver transplantation.

关键词： Living donor liver transplantation Steroid Acute rejection

Numerical simulation to evaluate gas diffusion of turbulent flow in mine ventilation system

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 Mining Science and Technology 2013年第3期23卷 349-355页

作者： Arif Widiatmojo Kyuro Sasaki Nuhindro Priagung Widodo yuichi Sugai Johannes Sinaga Haris Yusuf Department of Earth Resources Engineering Graduate School of EngineeringKyushu University Department of Mining Engineering Faculty of Mining and Petroleum EngineeringInstitut Teknologi Bandung PT. Cibaliung Sumberdaya Pandeglang

Tracer gas technique is a method to analyze the airflow path, measure the airflow quantity, and detect any recirculation or leakages in underground mine. In addition, it is also possible to evaluate the axial gas diffusion of gas in turbulent bulk flow by utilizing the tracer gas data. This paper discussed about the measurement using tracer gas technique in Cibaliung Underground Mine, Indonesia and the evaluation of effective axial diffusion coefficient, E, by numerical simulation. In addition, a scheme to treat network flow in mine ventilation system was also proposed. The effective axial diffusion coefficient for each airway was evaluated based on Taylor's theoretical equation. It is found that the evaluated diffusion coefficient agrees well with Taylor's equation by considering that the wall friction factor, f, is higher than those for smooth pipe flow. It also shows that the value of effective diffusion coefficient can be inherently determined and the value is constant when matching with other measurements. Furthermore, there are possibilities to utilize the tracer gas measurement data to evaluate the airway friction factors.

关键词： Tracer gas Effective axial diffusion coefficient Mine ventilation Numerical simulation

Preparation of 0.055BaZrO_(3)–0.935(K_(0.45)Na_(0.5)Li_(0.05))NbO_(3)–0.01(Bi_(0.5)Na_(0.5))TiO_(3) piezoelectric thin films from precursor solution by Pechini method

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

Journal of Advanced Dielectrics 2017年第2期7卷 41-44页

作者： Liqiang Liu Tomoaki Karaki Tadashi Fujii yuichi Sakai Department of Intelligent Systems Design Engineering Toyama Prefectural University 5180 KurokawaImizuToyama 939-0398Japan Toyama Industrial Technology Center 150 Futagamimachi TakaokaToyama 933-0981Japan

Lead-free piezoelectric thin films of 0.055BaZrO_(3)–0.935(K_(0.45)Na_(0.5)Li_(0.05))NbO_(3)–0.01(Bi_(0.5)Na_(0.5))TiO_(3)(BZ–KNLN–BNT)were fabricated on(100)-LaNiO_(3)/SiO_(2)/Si *** Pechini(polymeric precursor)method was carried out to prepare the complicated multi-component precursor *** method was suited for controlling the complex components *** films crystallized at 700℃ showed a(100)pc-oriented perovskite structure,whose grain size was about 200 nm and thickness was about 700 *** Curie temperature Tc of the films was 292℃ that was near to that of the bulk *** preparation method used in this work provided a possibility for the application of multi-component lead-free piezoelectric films.

关键词： Lead-free piezoelectric materials thin films Pechini method sol-gel method

Density matrix method and ultrafast processes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2012年第4期55卷 579-593页

作者： NIU YingLi LIN ChihKai ZHU ChaoYuan MINEO Hirobumi CHAO ShengDer FUJIMURA yuichi HAYASHI Michitoshi LIN ShengHsien Key Laboratory of Organic Solids Beijing National Laboratory for Molecular Science(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China Institute of Modern Physics Northwest UniversityXi’an 710069China Department ofChemistry Faculty ofScienceTohoku UniversitySendai 980Japan

When femtosecond （fs） timeresolved experiments are used to study ultrafast processes, quantum beat phenomena are often observed. In this paper, to analyze the fs timeresolved spectra, we will present the density matrix method, a powerful theoretical technique, which describes the dynamics of population and coherence of the system. How to employ it to study the pumpprobe experiments and fs ultrafast processes is described. The transition of pyrazine is used as an example to demonstrate the application of the density matrix method. Recently, Suzuki＇s group have employed the 22 fs time resolution laser to study the dynamics of the state of pyrazine. In this case, conical intersection is commonly believed to play an important role in this nonadiabatic process. How to treat the effect of conical intersection on nonadiabatic processes and fs timeresolved spectra is presented. Another important ultrafast process, vibrational relaxation, which takes place in subps and ps range and has never been carefully studied, is treated in this paper. The vibrational relaxation in water dimer is chosen to demonstrate the calculation. It should be noted that the vibrational relaxation of （H20）2 has not been experimentally studied but it can be accomplished by the pump-probe experiments.

关键词： density matrix master equation conical intersection vibrational relaxation

Rotation,Translation and Scale Invariant Sign Word Recognition Using Deep Learning

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

Computer Systems Science & Engineering 2023年第3期44卷 2521-2536页

作者： Abu Saleh Musa Miah Jungpil Shin Md.Al Mehedi Hasan Md Abdur Rahim yuichi Okuyama School of Computer Science and Engineering The University of AizuAizuwakamatsuFukushima965-8580Japan Department of Computer Science and Engineering Pabna University of Science and TechnologyPabnaBangladesh

Communication between people with disabilities and people who do not understand sign language is a growing social need and can be a tedious *** of the main functions of sign language is to communicate with each other through hand *** of hand gestures has become an important challenge for the recognition of sign *** are many existing models that can produce a good accuracy,but if the model test with rotated or translated images,they may face some difficulties to make good performance *** resolve these challenges of hand gesture recognition,we proposed a Rotation,Translation and Scale-invariant sign word recognition system using a convolu-tional neural network(CNN).We have followed three steps in our work:rotated,translated and scaled(RTS)version dataset generation,gesture segmentation,and sign word ***,we have enlarged a benchmark dataset of 20 sign words by making different amounts of Rotation,Translation and Scale of the ori-ginal images to create the RTS version *** we have applied the gesture segmentation *** segmentation consists of three levels,i)Otsu Thresholding with YCbCr,ii)Morphological analysis:dilation through opening morphology and iii)Watershed ***,our designed CNN model has been trained to classify the hand gesture as well as the sign *** model has been evaluated using the twenty sign word dataset,five sign word dataset and the RTS version of these *** achieved 99.30%accuracy from the twenty sign word dataset evaluation,99.10%accuracy from the RTS version of the twenty sign word evolution,100%accuracy from thefive sign word dataset evaluation,and 98.00%accuracy from the RTS versionfive sign word dataset ***,the influence of our model exists in competitive results with state-of-the-art methods in sign word recognition.

关键词： Sign word recognition convolution neural network(cnn) rotation translation and scaling(rts) otsu segmentation

Effects of denosumab treatment in chronic liver disease patients with osteoporosis

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 2020年第33期26卷 4960-4971页

作者： Chisato Saeki Mitsuru Saito Tsunekazu Oikawa Masanori Nakano yuichi Torisu Masayuki Saruta Akihito Tsubota Division of Gastroenterology and Hepatology Department of Internal MedicineThe Jikei University School of MedicineTokyo 1058461Japan Department of Orthopaedic Surgery The Jikei University School of MedicineTokyo 1058461Japan Core Research Facilities Research Center for Medical ScienceThe Jikei University School of MedicineTokyo 1058461Japan

BACKGROUND Effective treatment of osteoporosis is essential for improving morbidity and health-related quality of life in chronic liver disease(CLD)*** has been shown to increase bone mineral density(BMD)and decrease the risk of osteoporotic fracture in the general ***,there are few reports evaluating the efficacy of denosumab in CLD *** To investigated the effects and safety of denosumab in CLD patients with *** Sixty CLD patients with osteoporosis were subcutaneously administered denosumab once every 6 *** study period for evaluating efficacy and safety was 12 *** from baseline in BMD at the lumbar spine,femoral neck,and total hip were evaluated at 12 mo of denosumab *** turnover and quality were assessed by measuring serum tartrate-resistant acid phosphatase-5b(bone resorption marker),serum total procollagen type I N-terminal propeptide(bone formation maker),and plasma pentosidine(bone quality marker).RESULTS Among the 405 CLD patients,138(34.1%)patients were diagnosed with osteoporosis;among these,78 patients met the exclusion criteria and thus 60 patients were finally included in the present *** median percentage changes from baseline to 12 mo of denosumab treatment in BMD at the lumbar spine,femoral neck,and total hip were+4.44%,+3.71%,and+4.03%,*** significantly improved BMD,regardless of sex,patient age,and presence of liver *** tartrate-resistant acid phosphatase-5b and procollagen type I N-terminal propeptide levels constantly and significantly declined after denosumab treatment(P<0.001).Plasma pentosidine levels were also significantly lower at 12 mo of treatment(P=0.010).No patients experienced fractures and moderate-to-severe adverse events,except for transient *** Denosumab treatment was safe and increased BMD,suppressed bone turnover,and improved bone quality marker levels in CLD patients with osteoporosis,irrespective

关键词： Chronic liver disease Denosumab Osteoporosis Bone mineral density Bone turnover Bone quality

Stability of pyrrolidone derivatives against γ-ray irradiation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2012年第9期55卷 1739-1745页

作者： NOGAMI Masanobu SUGIYAMA yuichi KAWASAKI Takeshi HARADA Masayuki KAWATA Yoshihisa MORITA Yasuji KIKUCHI Toshiaki IKEDA Yasuhisa Research Laboratory for Nuclear Reactors Tokyo Institute of Technology2-12-1-N1-34O-okayamaMeguro-kuTokyo 152-8550Japan Japan Atomic Energy Agency Tokai-muraNaka-gunIbaraki 319-1195Japan Mitsubishi Materials Corporation 1002-14MukoyamaNaka-shiIbaraki 311-0102Japan

To evaluate the stability of N-alkylated pyrrolidone derivatives （NRPs）, which are supposed to be used as precipitants for U（VI） and Pu（IV, VI） species in HNO3 media, under irradiation environment, some candidate NRPs were irradiated by γ-ray. Irradia- tion to HNO3 solutions up to 6 mol dm-3 （= M） containing 2 M N-n-butyl-2-pyrrolidone （NBP）, one of NRPs with lower hy- drophobicity, has revealed that the residual ratios of NBP in the samples of HNO3 up to 3 M decreased identically and linearly. Approximately 20% of NBP was found to be degraded after the irradiation at 1 MGy. It was also found that the decrease in the precipitation ratio of UOf＋（P.R., %） was gentle and that the P.R. values were relatively in accordance with the residual ratios of NBP. On the other hand, the degradation of the samples irradiated in 6 M HNO3 was found more distinguished. It was pro- posed from the analyses of degraded compounds that the degradation of NBP in HNO3 by γ-ray irradiation started from the cleavage of the pyrrolidone ring by the addition of oxygen atom originating from HNO3, followed by the formation of chain compounds by the successive addition of oxygen, leading to the generation of oxalic acid and acetic acid. The stability of other NRPs in 3 M HNO3 was evaluated to be nearly identical with that of NBP except lower P.R. values of the samples containing NRPs with higher hydrophobicity irradiated at more than 0.5 MGy.

关键词： pyrrolidone derivatives precipitants γ-ray irradiation HNO3 U(VI)

A CIN-like TCP transcription factor(LsTCP4)having retrotransposon insertion associates with a shift from Salinas type to Empire type in crisphead lettuce(Lactuca sativa L.)

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

Horticulture Research 2020年第1期7卷 2597-2610页

作者： Kousuke Seki Kenji Komatsu Keisuke Tanaka Masahiro Hiraga Hiromi Kajiya-Kanegae Hideo Matsumura yuichi Uno Nagano Vegetable and Ornamental Crops Experiment Station Tokoo 1066-1SougaShiojiriNagano 399-6461Japan Department of Bioresource Development Tokyo University of AgricultureFunako1737AtsugiKanagawa 243-0034Japan NODAI Genome Research Center Tokyo University of AgricultureSakuragaoka 1-1-1SetagayaTokyo 156-8502Japan Nagano Fruit Tree Experiment Station Ogawara 492SuzakaNagano 382-0072Japan Research Center for Agricultural Information Technology NAROKannondai 3-1-1TsukubaIbaraki 305-8517Japan Gene Research Center Shinshu Seki et al.Horticulture Research(2020)7:15 Page 13 of 14 UniversityTsuneta 3-15-1UedaNagano 386-8567Japan Plant Science Division Department of Bioresource ScienceGraduate School of Agricultural ScienceKobe UniversityRokkodai 1-1NadaKobeHyogo 657-8501Japan

To improve several agronomic traits in crisphead lettuce(Lactuca sativa L.)under high-temperature growth conditions,we investigated the correlation among those traits in multiple cultivars and performed genetic mapping of their causal *** a field cultivation test of Empire type(serrated leaf)and Salinas type(wavy leaf)cultivars,Empire type cultivars showed increased tipburn susceptibility and late bolting compared with Salinas type *** attempted genetic mapping of leaf shape and bolting time by ddRAD-seq using the F2 population derived from a cross between‘VI185’(Empire type)and‘ShinanoGreen’(Salinas type).These analyses suggested that both traits are controlled by a single locus in *** of 51 commercial lettuce cultivars with a tightly linked marker(LG5_v8_252.743Mbp)at this locus showed an association between its genotype and the serrated leaf *** further fine mapping and transcriptome analysis,a gene encoding putative CIN-like TCP transcription factor was determined to be a candidate gene at this locus and was designated as *** insertion of retrotransposable element was found in the allele of‘VI185’,and its transcript level in the leaves was lower than that in‘ShinanoGreen’.Because shapes of leaf epidermal cells in‘VI185’were similar to those in the TCP family mutant of Arabidopsis thaliana,the leaf shape phenotype was likely caused by reduced expression of ***,because it is known that the TCP family protein also controls flowering time via interaction with FT in ***,it was highly possible that LsTCP4 gave pleiotropic effects on both leaf shape and bolting time in lettuce.

关键词： cultivar insertion Lactuca

Diffusion-weighted imaging might be useful for reactive lymphoid hyperplasia diagnosis of the liver: A case report

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 Clinical Cases 2020年第21期8卷 5313-5319页

作者： Taro Tanaka Kazuhiro Saito Daisuke Yunaiyama Jun Matsubayashi yuichi Nagakawa Maki Tanigawa Toshitaka Nagao Department of Radiology Tokyo Medical UniversityTokyo 1600023Japan Department of Anatomic Pathology Tokyo Medical UniversityTokyo 1600023Japan Department of Gastrointestinal and Pediatric Surgery Tokyo Medical UniversityTokyo 1600023Japan

BACKGROUND Reactive lymphoid hyperplasia(RLH)of the liver is a rare liver *** is considered difficult to differentiate radiologically from hepatocellular carcinoma,metastatic liver tumor and other *** SUMMARY A 54-year-old woman presented to our hospital with RLH of the *** patient had a diagnosis of metastatic carcinoma of the liver from an unknown origin and subsequently underwent partial ***,histopathological analysis revealed *** lesion showed perinodular enhancement in the arterial phase on contrast-enhanced computed tomography and magnetic resonance *** diffusion-weighted imaging(DWI),we encountered linear hyperintensity along the portal tract consecutive to the liver lesion,which is a new characteristic radiologic *** finding corresponded to the lymphoid cell infiltration of the portal ***,there was strongly restricted diffusion on the apparent diffusion coefficient *** used these characteristic radiologic findings to diagnose the lesion as a lymphoproliferative *** The linear hyperintensity consecutive to the liver lesion on DWI provided additional valuable diagnostic information.

关键词： Reactive lymphoid hyperplasia Pseudolymphoma Magnetic resonance imaging Diffusion-weighted imaging Perinodular enhancement Portal tract infiltration Case report