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Risk factors of organ failure in cholangitis with bacteriobilia

World Journal of Gastroenterology 2015年第24期21卷 7506-7513页

作者： Jae Min Lee Sang Hyub Lee Kwang Hyun Chung Jin Myung Park Ban Seok Lee Woo Hyun Paik Joo Kyung Park Ji Kon Ryu yong-tae kim Departments of Internal Medicine and Liver Research Institute Seoul National University College of Medicine Seoul National University Hospital Department of Internal Medicine Gyeongsang National University College of Medicine Gyeongsang National University Hospital Department of Internal Medicine Kangwon National University School of Medicine Kangwon National University Hospital Department of Internal Medicine Inje University Ilsan Paik Hospital Department of Gastroenterology Department of Medicine Samsung Medical Center Sungkyunkwan University School of Medicine

AIM: To identify the risk factors for organ failure(OF) in cholangitis with ***: This study included 182 patients with acute cholangitis who underwent percutaneous transhepatic biliary drainage between January 2005 and April 2013. We conducted a retrospective analysis of comprehensive clinical and laboratory ***: There were 24 cases(13.2%) of OF and five deaths(2.7%). Bile culture was positive for microbial growth in 130 out of 138(94.2%) patients. In multivariate analysis of 130 patients with positivebile cultures, significant predictive factors for OF were the presence of extended-spectrum beta-lactamase(ESBL) organisms in blood cultures, pre-existing renal dysfunction, and choledocholithiasis as an etiology, with odds ratios of 15.376, 6.319, and 3.573, respectively. We developed a scoring system with a regression coefficient of each significant variable. The OF score was calculated using the following equation:(2.7 × ESBL organisms in blood cultures) +(1.8 × pre-existing renal dysfunction) +(1.3 × choledocholithiasis). This scoring system for predicting OF was highly specific(99.1%) and had a positive predictive value of 86.2%.CONCLUSION: ESBL organisms in blood cultures, preexisting renal dysfunction, and choledocholithiasis are risk factors for OF in cholangitis with bacteriobilia. The OF scoring system may aid clinicians to identify a poor prognosis group.

关键词： Acute cholangitis Bacteriobilia Bile culture Organ failure

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Comparison of cytological and histological preparations in the diagnosis of pancreatic malignancies using endoscopic ultrasoundguided fine needle aspiration

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Hepatobiliary & Pancreatic Diseases International 2017年第4期16卷 418-423页

作者： Dong Kee Jang Sang Hyub Lee Jun Kyu Lee Woo Hyun Paik Kwang Hyun Chung Ban Seok Lee Jun Hyuk Son Jae Woo Lee Ji Kon Ryu yong-tae kim Kyoung-Bun Lee Department of Internal Medicine Dongguk University Ilsan Medical CenterGoyang-siGyeonggi-doKorea Department of Internal Medicine and Liver Research Institute Seoul National University HospitalSeoul National University College of MedicineSeoulKorea Department of Internal Medicine Inje University Ilsan Paik HospitalGoyang-siGyeonggi-doKorea Department of Pathology Seoul National University College of MedicineSeoulKorea

BACKGROUND:Endoscopic ultrasound-guided fine needle aspiration(EUS-FNA) has become a crucial diagnostic technique for pancreatic *** specimen obtained by EUS-FNA can be prepared for either cytological or histological *** study was to compare diagnostic performance of cytological and histological preparations using EUSFNA in the same lesions when pancreatic malignancies were ***:One hundred and eighteen patients who underwent EUS-FNA for suspected pancreatic malignancies were consecutively *** procedures were conducted by a single echoendoscopist under the same *** adequate preparations were obtained by 22-gauge needles with 20 to-and-fro movements for each *** 4 preparations included 2 cytological and 2 histological *** pathologic reviews of all specimens were conducted independently by a single experienced ***,specificity,and accuracy of the 2 preparations were ***:The enrolled patients consisted of 62 males(52.5%),with the mean age of 64.6±10.5 *** was performed in 23(19.5%) *** hundred and sixteen(98.3%) lesions were classified as malignant,while 2(1.7%) were *** of cytology and histology were 87.9% and 81.9%,respectively,with no significant difference(P=0.190).Accuracy was also not significantly *** preparation was more sensitive when the size of lesion was <3 cm(86.7% vs 68.9%,P=0.033).CONCLUSIONS:Our results suggested that the diagnostic performances of cytological and histological preparations are not significantly different for the diagnosis of pancreatic ***,cytological preparation might be more sensitive for pancreatic lesions <3 cm.

关键词： endoscopic ultrasound-guided fine needle aspiration pancreatic neoplasms cytology pathology histology

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Quality of life outcomes including neuropathy-associated scale from a phase II,multicenter,randomized trial of eribulin plus gemcitabine versus paclitaxel plus gemcitabine as first-line chemotherapy for HER2-negative metastatic breast cancer:Korean Cancer Study Group Trial(KCSG BR13-11)

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Cancer Communications 2019年第1期39卷 271-278页

作者： Ji-Yeon kim Seri Park Seock-Ah Im Sung-Bae kim Joohyuk Sohn Keun Seok Lee Yee Soo Chae Ki Hyeong Lee Jee Hyun kim Young-Hyuck Im tae-yong kim Kyung-Hun Lee Jin-Hee Ahn Gun Min kim In Hae Park Soo Jung Lee Hye Sook Han Se Hyun kim Kyung Hae Jung Yeon Hee Park Korean Cancer Study Group Division of Hematology-Oncology Department of MedicineSamsung Medical CenterSungkyunkwan University School of Medicine81 Irwon-roGangnam-guSeoul 06351South Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences and TechnologySungkyunkwan UniversitySeoul 06351South Korea Department of Internal Medicine Seoul National University HospitalCancer Research InstituteCollege of MedicineSeoul National UniversitySeoul 03080South Korea Department of Oncology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea Division of Medical Oncology Department of Internal MedicineYonsei University College of MedicineSeoul 03722South Korea Center for Breast Cancer National Cancer CenterGoyang 10408South Korea Department of Internal Medicine Kyungpook National University HospitalDaegu 41944South Korea Deparment of Internal Medicine Chungbuk National University HospitalCheongju 28644South Korea Department of Internal Medicine Seoul National University Bundang HospitalSeoul National University College of MedicineSeongnam 13620South Korea

Background: A phase II clinical trial of the comparison between eribulin plus gemcitabine (EG) and paclitaxel plus gemcitabine (PG) as first-line chemotherapy for patients with metastatic breast cancer (MBC) found that the EG regimen was less neurotoxic, but was similar in efficacy to the PG regimen. In the present study, we analyzed functional assessment of cancer therapy-taxane (FACT-Taxane) questionnaires from patients in this clinical trial to determine their quality of life (QoL). Methods: QoL was assessed using the Korean version of the FACT-Taxane questionnaires. After baseline assessment, QoL was assessed every 2 cycles for 12 cycles and every 3 cycles thereafter. The linear mixed model was used to evaluate the difference in QoL between the EG and PG arms. Results: Of the 118 enrolled patients, 117 responded to the FACT-Taxane questionnaires at baseline, 1 in the PG arm did not. Baseline QoL scores were not different between the EG and PG arms. During treatment, taxane subscale scores were significantly higher in the PG arm than in the EG arm after 2-13 cycles of chemotherapy (all P < 0.05), except for the 11th cycle. Neuropathy-specific analysis showed that patients in the PG arm had earlier and more severe neuropathic symptoms than those in the EG arm (P < 0.001). Conclusions: In our QoL analysis, the EG regimen delayed and decreased neuropathy as compared with the PG regimen. Therefore, eribulin would be a reasonable substitute for paclitaxel as first-line chemotherapy for MBC.

关键词： Metastatic breast cancer Eribulin Paclitaxel Neuropathy Quality of life Functional assessment of cancer therapy-taxane questionnaires

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Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram D.Dongale Atul C.Khot Chenjie Yao Nahyun kim tae Geun kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea Computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide conductors due to their high electrical conductivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent conducting metal oxide mesh electrode using selfcracking-assisted *** this method,we produced an electrode with ultra-transparency(97.39%),high conductance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory

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Comparison of efficacy between adjuvant chemotherapy and chemoradiation therapy for pancreatic cancer: AJCC stage-based approach

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World Journal of Clinical Oncology 2020年第9期11卷 747-760页

作者： Min Su You Ji Kon Ryu Gunn Huh Jung Won Chun Woo Hyun Paik Sang Hyub Lee yong-tae kim Internal Medicine and Liver Research Institute Seoul National University HospitalSeoul 110-744South Korea

BACKGROUND The adjuvant treatment for patients with resected pancreatic cancer(PC)is not yet *** the prognosis differs according to the American Joint Committee on Cancer(AJCC)stage,a tailored approach to establish more aggressive treatment plans in high-risk patients is ***,studies comparing the efficacy of adjuvant treatment modalities according to the AJCC stage are largely *** To compare the efficacy of chemotherapy and chemoradiation therapy according to AJCC 8th staging system in patients with PC who underwent surgical *** A total of 335 patients who underwent surgical resection and adjuvant treatment for PC were *** were divided into three groups:Chemoradiation therapy(CRT)group,systemic chemotherapy(SCT)group and combined treatment of chemoradiation plus chemotherapy therapy(CRT-SCT)*** primary outcomes were differences in overall survival(OS)between the three *** secondary outcomes were differences in recurrence-free survival,recurrence pattern and adverse events between the three *** Patients received CRT(n=65),SCT(n=62)and CRT-SCT(n=208).Overall median OS was 33.3 mo(95%confidence interval(CI):27.4-38.6).In patients with stage I/II,the median OS was 27.0 mo(95%CI:2.06-89.6)in the CRT group,35.8 mo(95%CI:26.9-NA)in the SCT group and 38.6 mo(95%CI:33.3-55.7)in the CRT SCT *** them,there was no significant difference in OS between the three *** 59 patients with stage III,median OS in the SCT group[19.0 mo(95%CI:12.6-NA)]and the CRT-SCT group[23.4 mo(95%CI:22.0-44.4)]was significantly longer than that in the CRT group[17.7 mo(95%CI:6.8-NA);P=0.011 and P<0.001,respectively].There were no significant differences in incidence of locoregional and distant recurrences between the three groups(P=0.158 and P=0.205,respectively).Incidences of grade 3 or higher hematologic adverse events were higher in the SCT and CRT-SCT groups than in the CRT *** SCT

关键词： Pancreatic cancer Adjuvant chemotherapy Radiotherapy Survival

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Machine learning empowers efficient design of ternary organic solar cells with PM6 donor

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Journal of Energy Chemistry 2025年第1期100卷 337-347页

作者： Kiran A.Nirmal Tukaram D.Dongale Santosh S.Sutar Atul C.Khot tae Geun kim School of Electrical Engineering Korea University Computational Electronics and Nanoscience Research Laboratory School of Nanoscience and Biotechnology Shivaji University Yashwantrao Chavan School of Rural Development Shivaji University

Organic solar cells(OSCs) hold great potential as a photovoltaic technology for practical ***, the traditional experimental trial-and-error method for designing and engineering OSCs can be complex, expensive, and time-consuming. Machine learning(ML) techniques enable the proficient extraction of information from datasets, allowing the development of realistic models that are capable of predicting the efficacy of materials with commendable accuracy. The PM6 donor has great potential for high-performance OSCs. However, it is crucial for the rational design of a ternary blend to accurately forecast the power conversion efficiency(PCE) of ternary OSCs(TOSCs) based on a PM6 ***, we collected the device parameters of PM6-based TOSCs and evaluated the feature importance of their molecule descriptors to develop predictive models. In this study, we used five different ML algorithms for analysis and prediction. For the analysis, the classification and regression tree provided different rules, heuristics, and patterns from the heterogeneous dataset. The random forest algorithm outperforms other prediction ML algorithms in predicting the output performance of PM6-based TOSCs. Finally, we validated the ML outcomes by fabricating PM6-based TOSCs. Our study presents a rapid strategy for assessing a high PCE while elucidating the substantial influence of diverse descriptors.

关键词： Random forests

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Optimization of an Artificial Intelligence Database and Camera Installation for Recognition of Risky Passenger Behavior in Railway Vehicles

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Computers, Materials & Continua 2025年第1期82卷 1277-1293页

作者： Min-kyeong kim Yeong Geol Lee Won-Hee Park Su-hwan Yun tae-Soon Kwon Duckhee Lee Railroad Test&Certification Division Korea Railroad Research Institute(KRRI)Cheoldo BangmulgwanroUiwang-si16105Republic of Korea Railroad Safety Division Korea Railroad Research Institute(KRRI)Cheoldo BangmulgwanroUiwang-si16105Republic of Korea

Urban railways are vital means of public transportation in *** than 30%of metropolitan residents use the railways,and this proportion is expected to *** enhance safety,the government has mandated the installation of closed-circuit televisions in all carriages by ***,cameras still monitored *** address this limitation,we developed a dataset of risk factors and a smart detection system that enables an immediate response to any abnormal behavior and intensive monitoring *** created an innovative learning dataset that takes into account seven unique risk factors specific to Korean railway *** data collection was conducted across the Shinbundang Line of the Incheon Transportation Corporation,and the Ui-Shinseol *** observed several behavioral characteristics and assigned unique annotations to *** also considered carriage *** performance was evaluated by camera placement and *** the camera installation plan was *** dataset will find immediate applications in domestic railway *** artificial intelligence algorithms will be verified shortly.

关键词： AI railway vehicle risk factor smart detection AI training data

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来自一项艾日布林联合吉西他滨对比紫杉醇联合吉西他滨作为HER2阴性转移性乳腺癌的一线化疗的Ⅱ期、多中心、随机试验的包含神经病变相关量表的生活质量结果：韩国癌症研究组试验(KCSG BR13-11)

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癌症 2019年第8期38卷 368-376页

作者： Ji‑Yeon kim Seri Park Seock‑Ah Im Sung‑Bae kim Joohyuk Sohn Keun Seok Lee Yee Soo Chae Ki Hyeong Lee Jee Hyun kim Young‑Hyuck Im tae‑yong kim Kyung‑Hun Lee Jin‑Hee Ahn Gun Min kim In Hae Park Soo Jung Lee Hye Sook Han Se Hyun kim Kyung Hae Jung Yeon Hee Park Korean Cancer Study Group Division of Hematology‑Oncology Department of MedicineSamsung Medical CenterSungkyunkwan University School of Medicine81 Irwon‑roGangnam‑guSeoul 06351South Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences and TechnologySungkyunkwan UniversitySeoul 06351South Korea Department of Internal Medicine Seoul National University HospitalCancer Research InstituteCollege of MedicineSeoul National UniversitySeoul 03080South Korea Department of Oncology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea Division of Medical Oncology Department of Internal MedicineYonsei University College of MedicineSeoul 03722South Korea Center for Breast Cancer National Cancer CenterGoyang 10408South Korea Department of Internal Medicine Kyungpook National University HospitalDaegu 41944South Korea Deparment of Internal Medicine Chungbuk National University HospitalCheongju 28644South Korea Department of Internal Medicine Seoul National University Bundang HospitalSeoul National University College of MedicineSeongnam 13620South Korea 不详

背景与目的一项比较艾日布林联合吉西他滨(eribulin plus gemcitabine,EG)或紫杉醇联合吉西他滨(paclitaxel plus gemcitabine,PG)作为转移性乳腺癌(metastatic breast cancer,MBC)患者一线化疗方案的II期临床试验发现,EG方案的神经毒性较低,但疗效与PG方案相似。在本研究中,我们分析了该临床实验中的癌症患者生命质量测评量表–紫杉烷(functional assessment of cancer therapy-taxane,FACT-Taxane)问卷评分以确定他们的生活质量(quality of life,QoL)。方法使用韩国版的FACT-Taxane问卷评估QoL。在评估基线之后,前12个疗程中每2个疗程评估1次QoL,之后每3个疗程评估1次QoL。使用线性混合模型评估EG组和PG组QoL的差异。结果在118例入组患者中,117例在基线时回复了FACT-Taxane问卷,PG组中有1例患者没有回复。EG组和PG组之间的基线QoL评分没有差异。在治疗期间,除了第11个疗程外,在第2–13个化疗疗程后,PG组紫杉烷亚量表评分显著高于EG组(均P<0.05)。神经病变特异性分析显示PG组患者的神经病症状比EG组患者更早出现且更严重(P<0.001)。结论在我们的QoL分析中,与PG方案相比,EG方案延迟并减少神经病变的发生。因此,艾日布林是MBC一线化疗药物紫杉醇的合理替代品。

关键词：转移性乳腺癌艾日布林紫杉醇神经病生活质量癌症患者生命质量测评量表–紫杉烷问卷

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Mechanical properties of high-strength concrete subjected to high temperature by stressed test

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中国有色金属学会会刊：英文版 2009年第B9期19卷 128-133页

作者： Gyu-yong kim Young-Sun kim tae-Gyu LEE Division of Architecture Engineering Chun gnam National University

Recently, the effects of high temperature on compressive strength and elastic modulus of high strength concrete were experimentally investigated. The present study is aimed to study the effect of elevated temperatures ranging from 20 ℃ to 700 ℃ on the material mechanical properties of high-strength concrete of 40, 60 and 80 MPa grade. During the strength test, the specimens are subjected to a 25% of ultimate compressive strength at room temperature and sustained during heating, and when the target temperature is reached, the specimens are loaded to failure. The tests were conducted at various temperatures (20-700 ℃) for concretes made with W/B ratios of 46%, 32% and 25%, respectively. The results show that the relative values of compressive strength and elastic modulus decrease with increasing compressive strength grade of specimen.

关键词：高强混凝土高温作用力学性能测试抗压强度温度升高弹性模量强度试验

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PopFlow:a novel flow management scheme for SDN switch of multiple flow tables based on flow popularity

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Frontiers of Computer Science 2020年第6期14卷 111-122页

作者： Cheng WANG Kyung tae kim Hee yong YOUN College of Electrical and Computer Engineering Sungkyunkwan UniversitySuwon 16419Korea College of Software Sungkyunkwan UniversitySuwon 16419Korea

Pipeline processing is applied to mutiple flow tables(MFT)in the switch of software-defined network(SDN)to increase the throughput of the ***,the processing time of each flow increases as the size or number of flow tables gets *** this paper we propose a novel approach called PopFlow where a table keeping popular flow entries is located up front in the pipeline,and an express path is provided for the flow matching the table.A Markov model is employed for the selection of popular entries considering the match latency and match frequency,and Queuing theory is used to model the flow processing time of the existing MFT-based schemes and the proposed *** simulation reveals that the proposed scheme substantially reduces the flow processing time compared to the existing schemes,and the diference gets more significant as the flow arrival rate increases.

关键词： edge computing SDN pipeline processing PopFlow match frequency and latency markov model-based prediction

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