检索结果-南通市图书馆

Increased incidence of indeterminate pancreatic cysts and changes of management pattern: Evidence from nationwide data

引用

Hepatobiliary & Pancreatic Diseases International 2023年第3期22卷 294-301页

作者： Jaewoo Park Jinkyeong Park Yoon Suk Lee Kwangrok jung In Ho jung Jong-chan Lee Jin-Hyeok Hwang Jaihwan Kim Department of Internal Medicine Seoul National University Bundang HospitalSeoul National University College of MedicineSeongnamKorea Department of Internal Medicine Kyung Hee University Hospital at GangdongSeoulKorea Department of Internal Medicine Inje University College of MedicineIlsan Paik HospitalGoyangKorea

Background:Pancreatic cysts are ***,most studies are based on data collected from individual *** present study aimed to evaluate the changes of management patterns for pancreatic cystic lesions(PCLs)by analyzing large epidemiologic ***:Between January 2007 and December 2018,information regarding pancreatic cystic lesions was acquired from the nationwide Health Insurance Review and Assessment Service database in ***:The final number of patients with pancreatic cysts was 165277 among the total claims for reimbursement of 855983 associated with PCLs over 12 *** total number of claims were increased from 19453 in 2007 to 155842 in 2018 and the prevalence increased from 0.04%to 0.23%.For 12 years,2874(1.7%)had pancreatic cancer and 8212(5.0%)underwent surgery,and 36 had surgery for twice(total 8248 pancreatectomy).After ruling out claims from the first 3 years of washout period,the incidence increased from 9891 to 24651 and the crude incidence rate of PCLs expanded from 19.96 per 100000 to 47.77 per *** to specific neoplasm codes(D136 or D377),the use of pancreatic cyst code(K862)has been remarkably increased and the most common since *** annual number of pancreatectomies increased from 518 to 861 between 2007 and 2012,and decreased to 596 until *** percentage of pancreatic cancer in patients who received pancreatectomy increased from 5.6%in 2007 to 11.7%in ***:The incidence of PCLs is rapidly *** PCLs,indeterminate cyst is increasing outstandingly.A trend of decreasing in the number of resections and increasing cancer rates among resected cysts may be attributed to the updated international guidelines.

关键词： Pancreatic cyst Incidence Prevalence Pancreatectomy Big data

来源：

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

Do you have what it takes for challenging endoscopic submucosal dissection cases?

引用

World Journal of Gastroenterology 2011年第31期17卷 3580-3584页

作者： Kyoung-Oh Kim sung jung Kim Tae Hyeon Kim Jong-Jae Park Division of Gastroenterology and Hepatology Department of Internal MedicineHallym University Medical Center Division of Gastroenterology and Hepatology Department of Internal MedicineWonkwang University Hospital Division of Gastroenterology and Hepatology Department of Internal MedicineKorea University Guro Hospital Korea University College of Medicine

Endoscopic submucosal dissection(ESD) is a widely accepted treatment for early gastric cancer(EGC),especially in Korea and *** criteria for the therapeutic use of ESD for EGC have been expanded ***,attention should be drawn to the technical feasibility of the ESD treatment which depends on a lesion's location,size or fibrosis level,or operator's *** the case of a lesion with a high level of difficulty,a more experienced operator is ***,the treatment for a lesion with a high level of difficulty should be performed according to the degree of the operator's *** this paper,the authors describe the ESD procedure for lesions with a high level of difficulty.

关键词： Endoscopic submucosal dissection Anatomical location Technical feasibility

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

On the stacking fault forming probability and stacking fault energy in carbon-doped 17 at%Mn steels via transmission electron microscopy and atom probe tomography

引用

Journal of Materials Science & Technology 2022年第20期115卷 177-188页

作者： Hyo Ju Bae Kwang Kyu Ko Muhammad Ishtiaq jung Gi Kim Hyokyung sung Jae Bok Seol Department of Materials Engineering and Convergence Technology Center for K-metalGyeongsang National University(GNU)Jinju 52828South Korea

Assessing the stacking fault forming probability(P_(sf)) and stacking fault energy(SFE)in medium-or highMn base structural materials can anticipate and elucidate the microstructural evolution before and after ***,these two parameters have been determined from theoretical calculations and empirical ***,the estimation of SFE values in Fe–Mn–C ternary systems is a longstanding debate due to the complicated nature of carbon:that is,whether the carbon doping indeed plays an important role in the formation of stacking faults;and how the amount of carbon atoms exist at grain boundaries or at internal grains with respect to the nominal carbon doping ***,the use of atom probe tomography and transmission electron microscopy(TEM)unveils the influence of carbondoping contents on the structural properties of dual-phase Fe–17 Mn–x C(x=0–1.56 at%)steels,such as carbon segregation free energy at grain boundaries,carbon concentration in grain interior,interplanar D-spacings,and mean width of intrinsic stacking faults,which are essential for SFE *** next determined the Psfvalues by two different methods,viz.,reciprocal-space electron diffraction measurements and stacking fault width measurements in real-space TEM ***,SFEs in the Fe–17 Mn–x C systems were calculated on the basis of the generally-known SFE *** found that the high amount of carbon doping gives rise to the increased SFE from 8.6 to 13.5 m J/m^(2)with non-linear *** SFE trend varies inversely with the mean width of localized stacking faults,which pass through both other stacking faults and pre-existingε-martensite plates without much difficulty at their intersecting *** high amount of carbon doping acts twofold,through increasing the segregation free energy(due to more carbon at grain boundaries)and large lattice expansion(due to increased soluble carbon at internal grains).The experimental data obtained here strengthens the composition-

关键词： Stacking fault formation probability Stacking fault energy High-Mn steel Electron diffraction

来源：

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

Isolation and characterization of Pseudomonas otitidis WL-13 and its capacity to decolorize triphenylmethane dyes

引用

Journal of Environmental Sciences 2009年第7期21卷 960-964页

作者： WU Jing jung Byung-Gil KIM Kyoung-Sook LEE Young-Choon sung Nak-chang Department of Biotechnology Dong-A University Busan 604-714 South Korea Brain Korea 21 Center for Silver-Bio Industrialization Dong-A University Busan 604-714 South Korea Department of Environmental Engineering College of Engineering Dong-A University. Busan 604-714 South Korea

Pseudomonas otitidis WL-13, which has a high capacity to decolorize triphenylmethane dyes, was isolated from activated sludge obtained from a wastewater treatment plant of a dyeing industry. This strain exhibited a remarkable color-removal capability when tested against several triphenylmethane dyes under both shaking and static conditions at high concentrations of dyes. More than 95% of Malachite Green and Brilliant Green was removed within 12 h at 500 μmol/L dye concentration under shaking conditions. Crystal Violet lost about 13% of its color under the same conditions tested. The rate of decolorization increased when the M9 medium was supplemented with yeast extract. The optimum pH and temperature for color removal were 7-9 and 35-40℃, respectively. The observed changes in the visible spectra and the inspection of bacterial growth indicated the color-removal by the adsorption of dye to the cells during incubation with strains.

关键词： adsorption decolorization Pseudomonas otitidis WL-13 triphenylmethane dye

来源：

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

Reference Coordinate System of Nonlinear Beam Element Based on the Geometrically Exact Formulation under Large Spatial Rotations and Deformations

引用

Engineering（科研） 2011年第1期3卷 1-16页

作者： Kyoung-chan Lee sung-Pil chang jung-Il Park sung-Bo Kim 不详

Analysis of slender beam structures in a three-dimensional space is widely applicable in mechanical and civil engineering. This paper presents a new procedure to determine the reference coordinate system of a beam element under large rotation and elastic deformation based on a newly introduced physical concept: the zero twist sectional condition, which means that a non-twisted section between two nodes always exists and this section can reasonably be regarded as a reference coordinate system to calculate the internal element forces. This method can avoid the disagreement of the reference coordinates which might occur under large spatial rotations and deformations. Numerical examples given in the paper prove that this procedure guarantees the numerical exactness of the inherent formulation and improves the numerical efficiency, especially under large spatial rotations.

关键词： Reference Coordinate System Element Coordinate System Large Rotation Beam Finite Element Geometric Nonlinearity Geometrically Exact Beam Formulation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Virtual Reality-Based Random Dot Kinematogram

引用

Computers, Materials & Continua 2021年第9期68卷 4205-4213页

作者： Jun Ma Hyo-jung Kim Ji-Soo Kim Eek-sung Lee Min Hong Department of Software Convergence Soonchunhyang UniversityAsan31538Korea Research Administration Team Seoul National University Bundang HospitalSeongnam13620Korea Dizziness Center Clinical Neuroscience CenterDepartment of NeurologySeoul National University Bundang HospitalSeongnam13620Korea Department of Neurology Seoul National University College of MedicineSeoul03080Korea Department of Neurology College of MedicineSoonchunhyang UniversityBucheon14584Korea Department of Computer Software Engineering Soonchunhyang UniversityAsan31538Korea

This research implements a random dot kinematogram(RDK)using virtual reality(VR)and analyzes the results based on normal *** motion perception is one of visual functions localized to a specific cortical area,the human motion perception area(human analogue for the middle temporal/middle superior temporal area)located in the parieto–occipito–temporal junction of the human *** RDK measures visual motion perception *** stimuli in conventional RDK methods are presented using a monitor screen,so these devices require a spacious dark room for installation and ***,VR technology has been implemented in different medical *** test method proposed in this study include a VR-based RDK that can independently measure human motion perception abilities without any spatial constraints via a VR head-mounted ***,the VR-based RDK was implemented,and the visual perception abilities of the normal subjects were measured based on varying *** both screen-and VR-based RDK tests,the easier the stimulus is,the higher the correct answer rate and the shorter the reaction *** significant differences in coherence thresholds were observed between the two test *** VRbased RDK proposed in this study can be used as a diagnosis tool for visual motion perception and neurodegenerative disorders affecting the posterior region of the brain.

关键词： Random dot kinematogram virtual reality visual psychophysics diagnostic device

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Incidence, prevalence and risk of stroke in patients with Takayasu arteritis: a nationwide population-based study in South Korea

引用

Stroke & Vascular Neurology 2022年第2期7卷 149-157页

作者： sung Soo Ahn Minkyung Han Yong-Beom Park Inkyung jung Sang-Won Lee Department of Internal Medicine Yongin Severance HospitalYonsei University College of MedicineYonginSouth Korea Biostatistics Collaboration Unit Department of Biomedical Systems InformaticsYonsei University College of MedicineSeoulSouth Korea Division of Rheumatology Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea Institute for Immunology and Immunological Diseases Yonsei University College of MedicineSeoulSouth Korea Division of Biostatistics Department of Biomedical Systems InformaticsYonsei University College of MedicineSeoulSouth Korea

Background Takayasu arteritis(TAK)is a disease associated with increased risk of cardiovascular *** aimed to evaluate the incidence,prevalence and risk of stroke in patients with *** Data from 1065 patients were obtained from a national database(2010–2018).The annual incidence and prevalence per 100000 persons were estimated using the registration population in the midst of every year,and the standardised incidence ratio(SIR)of stroke was compared with the general population based on the data from the 2006 national report for cardiovascular and cerebrovascular ***-adjusted incidence rate ratio(IRR)of stroke based on the time interval after diagnosis was also calculated.A time-dependent Cox regression was conducted to investigate predictive factors of *** The overall incidence rate of TAK ranged between 0.2 and 0.3/100000 person-years annually;the prevalence of TAK gradually increased,reaching 3.25/100000 person-years in ***-three(6.9%)patients experienced stroke during follow-up,and the risk of developing stroke was higher than the general population(overall SIR 7.39,95%CI 5.79 to 9.29;men:SIR 5.70,95%CI 2.84 to 10.20;women:SIR 7.06,95%CI 5.41 to 9.05).Most stroke events(90.9%)were cerebral infarction for men,whereas the proportion of cerebral infarction was lower(62.9%)in *** half of stroke events occurred within 6 months after diagnosis,and stroke was more common within 6 months of diagnosis compared with after 3 years in women(IRR 13.46,95%CI 6.86 to 26.40).In Cox regression analysis,age was the sole predictor of stroke(adjusted HR 1.02,95%CI 1.00 to 1.04,p=0.043).Conclusions The annual incidence of TAK was similar to the previous studies from Asia,and the risk of stroke increased in *** patterns of subtype and incidence of stroke were found according to sex,although age was the only predictor.

关键词： prevalence patients diagnosis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Structural basis of DNA binding by the NAC transcription factor ORE1,a master regulator of plant senescence

引用

Plant Communications 2023年第3期4卷 139-150页

作者： Inseop Chun Hyo jung Kim sunghyun Hong Yeon-Gil Kim Min-sung Kim Department of Life Sciences Pohang University of Science and Technology(POSTECH)PohangGyeongbukRepublic of Korea Center for Plant Aging Research Institute for Basic ScienceDaeguRepublic of Korea Center for Genome Engineering Institute for Basic ScienceDaejeonRepublic of Korea Pohang Accelerator Laboratory Pohang University of Science and TechnologyPohangRepublic of Korea

Plants use sophisticated mechanisms of gene expression to control senescence in response to environmental stress or ***1(Arabidopsis thaliana NAC092)is a master regulator of senescence that belongs to the plant-specific NAC transcription factor protein ***1 has been reported to bind to multiple DNA targets to orchestrate leaf senescence,yet the mechanistic basis for recognition of the cognate gene sequence remains ***,we report the crystal structure of the ORE1-NAC domain alone and its DNA-binding *** structure of DNA-bound ORE1-NAC revealed the molecular basis for nucleobase recognition and phosphate backbone *** showthat local versatility in the DNA-binding site,in combination with domain flexibility of the ORE-NAC homodimer,is crucial for the maintenance of binding to intrinsically flexible *** results provide a platformfor understanding other plant-specific NAC protein-DNA interactions as well as insight into the structural basis of NAC regulators in plants of agronomic and scientific importance.

关键词： NAC transcription factor crystal structure DNA complex senescence regulator

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Regeneration of waste SCR catalyst by air lift loop reactor

引用

Journal of Central South University 2013年第5期20卷 1314-1318页

作者： LEE jung-bin EOM Yong-seok KIM Jun-han CHUN sung-nam Technology Commercialization Office Korea Electric Power Research Institute

A solution of 0.1 mol/L to 1.0 mol/L H2SO4 can dissolve alkali metals and alkaline earth metals which weaken an active site of SCR catalyst. The waste catalyst washed with 0.5 mol/L H2SO4 regained the best catalytic activity. When a concentration of the sulfuric acid is less than 0.5 mol/L, sufficient cleaning effects cannot be obtained. In contrast, when the concentration is greater than 1.0 tool/L, the active components, vanadium and tungsten are undesirably eluted. The total BET surface of the catalyst regenerated by air lift loop reactor showed almost the same as that of fresh catalyst due to the removal of insoluble compounds which may be penetrated into pores of catalyst. The addition of a solution of 0.075 mol/L ammonium vanadate （NHnVO3） and 0.075 mol/L ammonium paratungstate （5（NH4）20· 12WO3-5H20） to 0.1 mol/L H2SO4 significantly increases the activity of the waste catalyst.

关键词： nitrogen oxide regeneration selective catalyst reduction air lift loop reactor catalyst

来源：

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

High-performance self-powered color filter-free blue photodetector based on wide-bandgap halide perovskites

引用

Journal of Materials Science & Technology 2023年第21期152卷 100-108页

作者： Yeonghun Yun Hanbyeol Cho Jina jung sung Woong Yang Devthade Vidyasagar Rajendra Kumar Gunasekaran Sangwook Lee School of Materials Science and Engineering Kyungpook National University(KNU)Daegu 41566South Korea KNU Advanced Material Research Institute Kyungpook National UniversityDaegu 41566South Korea Institute of Microstructure Technology&Light Technology Institute Karlsruhe Institute of TechnologyKarlsruhe 76131Federal Republic of Germany

Blue photodetectors(PDs)are attracting great attention for various *** blue PDs based on inorganic GaP or InGaN absorbers are limited by their expensive,complex,and high-temperature fabrication *** absorber-based blue PDs still have much lower photode-tecting properties than inorganic blue *** this study,a high-performance self-powered blue PD is developed using methylammonium lead halide(MAPbX_(3);X=I,Br,and Cl)perovskites based on the eco-nomic and facile solution process at low *** composition is obtained through halide-composition *** best-performing device exhibits an average external quantum efficiency and an average detectivity of 42.7%and 8.65×10^(11) Jones,respectively,within the blue *** peak responsivity of the proposed PD is 0.174 A W^(−1) at 455 nm,which is comparable to that of commercial gallium phosphide blue PD(0.180 A W^(−1) at 470 nm).Moreover,the proposed device exhibits excellent environmental stability under ambient air *** findings will act as a basis for next-generation image sensor technologies,such as vertically stacked red/green/blue PDs.

关键词： Perovskites Photodetectors Blue Composition engineering Self-powered Wide bandgap

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：