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Probabilistic Project Duration Estimation Based on Uncertainty of Linkage between Activities

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Journal of Civil Engineering and Architecture 2020年第4期14卷 214-225页

作者： seon-Gyoo kim Junyoung kim Department of Architectural Engineering Kangwon National UniversityChuncheon200-701South Korea Institute of Technology Mooyoung Construction Management Co.Ltd.SeoulSouth Korea

Generally,one of the most difficult works at scheduling is to estimate the duration of activities and linkages between them because the possibility that the duration and linkages could be exposed to the uncertainties is very *** estimating project duration,therefore,the probabilistic estimation of the duration as well as the probabilistic estimation of the linkages between activities should be considered *** Project Evaluation and Review Technique(PERT)that is considered to be one of the most popular techniques applied for the probabilistic estimation of a project duration cannot consider the uncertainties of the linkages because it only estimates the probabilistic duration limited to“FS0”*** purpose of this study is to propose the new method,the Probabilistic Linkage Evaluation Technique(PLET),for probabilistically estimating the project duration based on the probabilistic estimation of the BDM’s relationships,and also provide more wide and various probabilistic information about the project duration.

关键词： PDM BDM linkage overlap probabilistic evaluation

Chronic activation of 4-1BB signaling induces granuloma development in tumor-draining lymph nodes that is detrimental to subsequent CD8^(+)T cell responses

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Cellular & Molecular Immunology 2021年第8期18卷 1956-1968页

作者： seon-Hee kim Rohit Singh Chungyong Han Eunjung Cho Yu I.kim Don G.Lee Young H.kim Sang Soo kim Dong Hoon Shin Hye Jin You Hyeon-Woo Lee Byoung S.Kwon Beom K.Choi Division of Tumor Immunology National Cancer CenterGoyang10408Republic of Korea Graduate School of Cancer Science and Policy National Cancer CenterGoyang10408Republic of Korea Biomedicine Production Branch Program for Immunotherapy ResearchGoyang10408Republic of Korea Eutilex Institute for Biomedical Research EutilexCo.Ltd.Seoul08594Republic of Korea Division of Convergence Technology National Cancer CenterGoyang10408Republic of Korea Division of Translational Science National Cancer CenterGoyang10408Republic of Korea Institute of Oral Biology School of DentistryGraduate SchoolKyung Hee UniversitySeoul02447Republic of Korea Department of Medicine Tulane University Health Sciences CenterNew OrleansLA70112USA

The antitumor capabilities of agonistic anti-4-1BB mAbs have made them an attractive target for tumor ***,the adverse side effects associated with agonist antibodies have hindered their clinical ***,we aimed to study the immune-related adverse events of repeated doses and long-term use of agonistic anti-4-1BB *** show that chronic activation of 4-1BB signals induced the accumulation of IFN-γ-producing PD-1^(+)CD8^(+)T cells in the secondary lymphoid organs of tumor-bearing mice by increasing the number of dividing CD8^(+)T cells,which was beneficial for suppressing tumor growth in the early phase of anti-4-1BB ***,repeated exposure to anti-4-1BB mAbs led to granuloma development in tumor-draining lymph nodes(TDLNs)of mice due to recruitment and accumulation of macrophages via the CD8^(+)T cell-IFN-γ*** was accompanied by excessive lymph node swelling,which impaired the sequential activation of CD8^(+)T *** data provide insights into the immune-related adverse events of long-term agonist 4-1BB antibody dosing,which should be considered during the clinical development of immunomodulating therapy.

关键词： 4-1BB Costimulation Granuloma CD8 lymphocyte Macrophage

Cumulative incidence and risk factors for pouch adenomas associated with familial adenomatous polyposis following restorative proctocolectomy

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World Journal of Gastroenterology 2022年第30期28卷 4152-4162页

作者： Hyo seon Ryu Chang Sik Yu Young Il kim Jong Lyul Lee Chan Wook kim Yong Sik Yoon In Ja Park Seok-Byung Lim Jin Cheon kim Division of Colon and Rectal Surgery Department of SurgeryUniversity of Ulsan College of MedicineAsan Medical CenterSeoul 05505South Korea

BACKGROUND The emergence of restorative total proctocolectomy has significantly reduced the lifetime colorectal cancer risk associated with familial adenomatous polyposis(FAP).However,adenomas may develop in the ileal pouch over time and may even progress to *** evaluated the cumulative incidence,time to development,and risk factors associated with ileal pouch *** To evaluate the cumulative incidence,time to development,and risk factors associated with pouch *** In this retrospective,observational study conducted at a tertiary center,95 patients with FAP who underwent restorative proctocolectomy at our center between 1989 and 2018 were consecutively *** mean follow-up period was 88 *** Pouch adenomas were found in 24(25.3%)patients,with a median time of 52 mo to their first *** adenomas were detected in most patients(95.9%).There were no high-grade dysplasia or *** the 24 patients with pouch adenomas,13 had all detected adenomas *** the 13 patients who underwent complete adenoma removal,four(38.5%)developed *** 11(45.8%)patients with numerous polyps within the pouch,seven(63.6%)exhibited progression of pouch *** cumulative risks of pouch adenoma development at 5,10,and 15 years after pouch surgery were 15.2%,29.6%,and 44.1%,*** colorectal polyposis(with more than 1000 polyps)was a significant risk factor for pouch adenoma development(hazard ratio,2.49;95% confidence interval:1.04-5.96;P=0.041).CONCLUSION Pouch adenomas occur at a fairly high rate in association with FAP after restorative proctocolectomy,and a high colorectal polyp count is associated with pouch adenoma development.

关键词： Adenomatous polyposis coli Familial adenomatous polyposis Adenoma Intestinal polyps Proctocolectomy,restorative Ileal pouch anal anastomosis

Effect of initial precursor concentration on TiO_2 thin film nanostructures prepared by PCVD system

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Journal of Energy Chemistry 2013年第3期22卷 375-381页

作者： Hoang Hai Nguyen Dong-Joo kim Dong-Wha Park Kyo-seon kim Department of Chemical Engineering Kangwon National UniversityChuncheonKangwon-Do200-701Republic of Korea Department of Chemical Engineering and RIC-ETTP(Regional Innovation Center for Environmental Technology of Thermal Plasma) Inha University253 Yonghyun-dongNam-guIncheon402-751Republic of Korea

TiO2 thin film was prepared on Si substrate by plasma chemical vapor deposition （PCVD） system and the morphologies of ZiO2 thin film were controlled by adjusting the initial precursor concentration. As the initial titanium tetra-isopropoxide （TTIP） concentration increases in PCVD reactor, the shapes of TiO2 particles generated in PCVD reactor change from the spherical small-sized particles around 20 nm and spherical large-sized particles around 60 nm to aggregate particles around 100 nm. The TiO2 particles with different shapes deposit on the substrate and become the main building blocks of resulting TiO2 thin film. We observed the TiO2 thin film with smooth morphology at low initial TTIP concentration, granular morphology at medium initial TTIP concentration, and columnar morphology at high initial TTIP concentration. It is proposed that we can prepare the TiO2 thin film with controlled morphologies in one-step process just by adjusting the initial precursor concentration in PCVD .

关键词： plasma chemical vapor deposition thin film growth morphology of TiO2 thin film shape of TiO2 particles

Successful treatment of intracardiac air embolism using intracardiac catheter aspiration

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Journal of Geriatric Cardiology 2017年第2期14卷 151-154页

作者： Ae-Young Her Yong Hoon kim Da Hye Moon Ji Hyun kim Jae Hoon Jeong Sung-Hyun Park Jin seon Jeong Division of Cardiology Department of Internal Medicine Kangwon National University School of Medicine Chuncheon South Korea Department of Internal Medicine Kangwon National University Hospital Chuncheon South Korea

Intracardic air embolism is uncommon, however it is a serious condition which frequently leads to catastrophic complications during or after invasive procedures resulting in significant morbidity and mortality. For a successful re- suscitation of patients with intracardiac air embolism, hy- perbaric oxygen therapy is critical.~~2~ Still, due to a hyper- baric chamber＇s unavailability at many hospitals and con- cerns about patient movement resulting in further embolism during transport, such treatment method is gradually dimin- ishing.

关键词： Aspiration Catheter Intracardiac air embolism

Pancreatic tuberculosis masquerading as pancreatic serous cystadenoma

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World Journal of Gastroenterology 2009年第8期15卷 1010-1013页

作者： Seung Goun Hong Jae seon kim Moon Kyung Joo Kwang Gyun Lee Key Hyeon kim Cho Rong Oh Jong-Jae Park Young-Tae Bak Department of Internal Medicine Korea University College of Medicine Seoul South Korea

Solitary pancreatic involvement of tuberculosis is rare, especially in an immunocompetent individual, and it may be misdiagnosed as pancreatic cystic neoplasms. Pancreatic cystic neoplasms are being identified in increasing numbers, probably because of the frequent use of radiology and advances in endoscopic techniques. However, they are composed of a variety of neoplasms with a wide range of malignant potential, and it is often difficult to differentiate pancreatic tuberculosis mimicking cystic neoplasms from benign or malignant pancreatic cystic neoplasms. Non-surgical diagnosis of pancreatic tuberculosis is inconclusive and continues to be a challenge in many cases. If so, then laparotomy should be employed to establish the diagnosis. Therefore, pancreatic tuberculosis should be kept in mind during the differential diagnosis of solitary cystic masses in the pancreas. We report a patient who had solitary pancreatic tuberculosis masquerading as pancreatic serous cystadenoma.

关键词： Tuberculosis Pancreas Cystadenoma Serous neoplasm

Dieckol isolated from Eisenia bicyclis extract suppresses RANKL-induced osteoclastogenesis in murine RAW 264.7 cells

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Asian Pacific Journal of Tropical Biomedicine 2022年第6期12卷 262-269页

作者： Su-Hyeon Cho Tae-Hyung Kwon Hoibin Jeong Jin Sook kim Song-Rae kim Myeong seon Jeong seonJu Park Miri Choi Jung-Hee Woo Juhee Ahn Kil-Nam kim Chuncheon Center Korea Basic Science InstituteChuncheon 24341Republic of Korea Department of Medical Biomaterials Engineering College of Biomedical SciencesKangwon National UniversityChuncheon 24341Republic of Korea Department of Research and Development Chuncheon Bio-industry FoundationChuncheonRepublic of Korea Marine Industry Research Institute for East se rim Uljin-gunGyeongsangbuk-doRepublic of Korea Department of Bio-analysis Science University of Science&TechnologyDaejeon34113Republic of Korea

Objective:To demonstrate the effect of dieckol from Eisenia bicyclis on osteoclastogenesis using RAW 264.7 ***:Murine macrophage RAW 264.7 cells were subjected to dieckol treatment,followed by treatment with receptor activator of nuclear factor kappa-B ligand(RANKL)to induce ***-resistant acid phosphatase(TRAP)activity was examined using a TRAP activity *** blotting analysis was conducted to examine the level of osteoclast-related factors,including TRAP and calcitonin receptor(CTR),transcriptional factors,including c-Fos,c-Jun,and nuclear factor of activated T cells cytoplasmic 1(NFATc1),nuclear factor kappa-B(NF-κB),extracellular signal-regulated kinase(ERK),and c-Jun N-terminal kinase(JNK).Immunofluorescence staining was conducted to examine the expression of c-Fos,c-Jun,and ***:Among the four phlorotannin compounds present in Eisenia bicyclis,dieckol significantly hindered osteoclast differentiation and expression of RANKL-induced TRAP and *** addition,dieckol downregulated the expression levels of c-Fos,c-Jun,NFATc1,ERK,and JNK,and suppressed NF-κB ***:Dieckol can suppress RANKL-induced ***,it has therapeutic potential in treating osteoclastogenesis-associated diseases.

关键词： Eisenia bicyclis Dieckol Osteoclasts ERK JNK NF-κB RANKL TRAP Calcitonin receptor NFATc1 RAW 264.7 cell

Hepatolithiasis and intrahepatic cholangiocarcinoma: A review

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World Journal of Gastroenterology 2015年第48期21卷 13418-13431页

作者： Hyo Jung kim Jae seon kim Moon Kyung Joo Beom Jae Lee Ji Hoon kim Jong Eun Yeon Jong-Jae Park Kwan Soo Byun Young-Tae Bak Department of Internal Medicine Korea University college of MedicineGuro Hospital

Although the incidence of hepatolithiasis is decreasing as the pattern of gallstone disease changes in Asia, the prevalence of hepatolithiasis is persistently high, especially in Far Eastern countries. Hepatolithiasis is an established risk factor for cholangiocarcinoma(CCA), and chronic proliferative inflammation may be involved in biliary carcinogenesis and in inducing the upregulation of cell-proliferating factors. With the use of advanced imaging modalities, there has been much improvement in the management of hepatolithiasis and the diagnosis of hepatolithiasis-associated CCA(HLCCA). However, there are many problems in managing the strictures in hepatolithiasis and differentiating them from infiltrating types of CCA. Surgical resection is recommended in cases of single lobe hepatolithiasis with atrophy, uncontrolled stricture, symptom duration of more than 10 years, and long history of biliaryenteric anastomosis. Even after resection, patients should be followed with caution for development of HL-CCA, because HL-CCA is an independent prognostic factor for survival. It is not yet clear whether hepatic resection can reduce the occurrence of subsequent HL-CCA. Furthermore, there are no consistent findings regarding prediction of subsequent HL-CCA in patients with hepatolithiasis. In the management of hepatolithiasis, important factors are the reduction of recurrence of cholangitis and suspicion of unrecognized HL-CCA.

关键词： Cholangiocarcinoma Hepatolithiasis Intrahepatic Management

Does the advantage of transcutaneous oximetry measurements in diabetic foot ulcer apply equally to free flap reconstruction?

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World Journal of Clinical Cases 2023年第31期11卷 7570-7582页

作者： Da Woon Lee Yong seon Hwang Je Yeon Byeon Jun Hyuk kim Hwan Jun Choi Department of Plastic and Reconstructive Surgery College of MedicineSoonchunhyang UniversityCheonan-si 31151South Korea

BACKGROUND Transcutaneous oxygen pressure(TcpO2)is a precise method for determining oxygen perfusion in wounded *** device uses either electrochemical or optical *** To evaluate the usefulness of TcpO2 measurements on free flaps(FFs)in diabetic foot ulcers(DFUs).METHODS TcpO2 was measured in 17 patients with DFUs who underwent anterolateral thigh(ALT)-FF surgery and compared with 30 patients with DFU without FF *** Significant differences were observed in the ankle-brachial index;duration of diabetes;and haemoglobin,creatinine,and C-reactive protein levels between the two ***2 values were similar between two groups except on postoperative days 30 and 60 when the values in the ALT-FF group remained50 *** Even if the flap is clinically stable,sympathectomy due to adventitia stripping during anastomosis and arteriovenous shunt progression due to diabetic polyneuropathy could lead to low TcpO2 values in the ALT-FF owing to its thick fat tissues,which is supported by the slow recovery of the sympathetic tone following ***,TcpO2 measurements in patients with DFU who underwent FF reconstruction may be less accurate than in those who did not.

关键词： Arteriovenous shunt Surgical Diabetic neuropathies Free tissue flaps Sympathectomy Blood gas monitoring Transcutaneous Diabetic angiopathies