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World Journal of Gastroenterology 2014年第42期20卷 15845-15851页

作者： Yoon Suk Jung Chang Kyun Lee Hyo jong kim Chang Soo Eun Dong Soo han Dong Ⅱ Park Department of Internal Medicine Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine Department of Internal Medicine Kyung Hee University School of Medicine Department of Internal Medicine Hanyang University Guri Hospital hanyang University College of Medicine

AIM: To compare efficacy, patient compliance, acceptability, satisfaction, safety, and adenoma detection rate of sodium phosphate tablets (NaP, CLICOLONTM) to a standard 4 L polyethylene glycol (PEG) solution for bowe... 详细信息

关键词： Sodium phosphate tablets Polyethylene glycol Colonoscopy Bowel preparation

Epidermal piezoresistive structure with deep learning-assisted data translation

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npj Flexible Electronics 2022年第1期6卷 672-680页

作者： Changrok So jong Uk kim Haiwen Luan Sang Uk Park Hyochan kim Seungyong han Doyoung kim Changhwan Shin Tae-il kim Wi Hyoung Lee Yoonseok Park Keun Heo Hyoung Won Baac jong Hwan Ko Sang Min Won Department of Electrical and Computer Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea School of Chemical Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Querrey Simpson Institute for Bioelectronics Northwestern UniversityEvanstonIL 60208USA Department of Mechanical Engineering Ajou UniversitySuwon 16499Republic of Korea School of Electrical Engineering Korea UniversitySeoul 02841Republic of Korea Biomedical Institute for Convergence(BICS) Sungkyunkwan University(SKKU)Suwon 16419Korea Department of Organic and Nano System Engineering Konkuk UniversitySeoul 05029Republic of Korea Department of Advanced Materials Engineering for Information and Electronics Kyung Hee UniversityYongin 17104Republic of Korea School of Semiconductor and Chemical Engineering Jeonbuk National UniversityJeonju 54896Republic of Korea

Continued research on the epidermal electronic sensor aims to develop sophisticated platforms that reproduce key multimodal responses in human skin,with the ability to sense various external stimuli,such as pressure,shear,torsion,and *** development of such applications utilizes algorithmic interpretations to analyze the complex stimulus shape,magnitude,and various moduli of the epidermis,requiring multiple complex equations for the attached *** this experiment,we integrate silicon piezoresistors with a customized deep learning data process to facilitate in the precise evaluation and assessment of various stimuli without the need for such *** the ability to surpass conventional vanilla deep regression models,the customized regression and classification model is capable of predicting the magnitude of the external force,epidermal hardness and object shape with an average mean absolute percentage error and accuracy of<15 and 96.9%,*** technical ability of the deep learning-aided sensor and the consequent accurate data process provide important foundations for the future sensory electronic system.

关键词： utilize attached precise

Adult dental epithelial stem cell-derived organoids deposit hydroxylapatite biomineral

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International Journal of Oral Science 2023年第4期15卷 676-690页

作者： Hyun-Yi kim Victoria Cooley Eun-Jung kim Shujin Li jong-Min Lee Dina Sheyfer Wenjun Liu Ophir D.Klein Derk Joester han-Sung Jung NGeneS Inc. Ansan-siGyeonggi-doKorea Department of Materials Science and Engineering Northwestern UniversityEvanstonILUSA X-ray Science Division Advanced Photon SourceArgonne National LaboratoryLemontILUSA Division in Anatomy and Developmental Biology Department of Oral BiologyOral Science Research CenterBK21 FOUR ProjectYonsei University College of DentistrySeoulKorea Department of Orofacial Sciences and Program in Craniofacial Biology University of CaliforniaSan FranciscoCAUSA Department of Pediatrics Cedars-Sinai Guerin Children’sLos AngelesCAUSA

Ameloblasts are specialized cells derived from the dental epithelium that produce enamel,a hierarchically structured tissue comprised of highly elongated hydroxylapatite(OHAp)*** unique function of the epithelial cells synthesizing crystallites and assembling them in a mechanically robust structure is not fully elucidated yet,partly due to limitations with in vitro experimental ***,we demonstrate the ability to generate mineralizing dental epithelial organoids(DEOs)from adult dental epithelial stem cells(aDESCs)isolated from mouse incisor *** expressed ameloblast markers,could be maintained for more than five months(11 passages)in vitro in media containing modulators of Wnt,Egf,Bmp,Fgf and Notch signaling pathways,and were amenable to *** transplanted underneath murine kidney capsules,organoids produced OHAp crystallites similar in composition,size,and shape to mineralized dental tissues,including some enamel-like elongated *** are thus a powerful in vitro model to study mineralization process by dental epithelium,which can pave the way to understanding amelogenesis and developing regenerative therapy of enamel.

关键词： epithelium maintained specialized

Occipital artery bypass importance in unsuitable superficial temporal artery:Two case reports

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World Journal of Clinical Cases 2023年第9期11卷 2091-2097页

作者： jong-Hwan Hong Sung-Chan Jung han-Seung Ryu Tae-Sun kim Sung-Pil Joo Department of Neurosurgery Chonnam National University Hospital and Medical SchoolGwangju 61469South Korea

BACKGROUND Superficial temporal artery-middle cerebral artery(STA-MCA)bypass helps treat cerebral ***,the STA is not available for bypass in some ***,with some technical tips,the authors introduced a bypass technique using the occipital artery(OA).CASE SUMMARY Two female patients complained of *** magnetic resonance imaging(MRI)indicated contralateral infarction from the MCA *** Diamox single photon emission computed tomography or perfusion MRI,the contralateral front parietotemporal reserve was *** transfemoral cerebral angiography,the STA was thin with a weak flow;however,the OA was *** OA-MCA end-to-side extracranial-intracranial bypass surgery was implemented instead of STA because the caliber was too *** postoperative course was uneventful in both cases,with well-maintained bypass patency and neurological stability during *** OA might be an acceptable alternative for MCA cerebral ischemic cases with an unsuitable STA.

关键词： Bypass Occipital artery Superficial temporal artery Cerebral ischemia Case report

A nanofilter composed of carbon nanotube-silver composites for virus removal and antibacterial activity improvement

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Journal of Environmental Sciences 2016年第4期28卷 275-283页

作者： Jun Pyo kim Jae Ha kim Jieun kim Soo No Lee han-Oh Park Nano Development Team Bioneer Corporation Daejeon 306-220 Republic of Korea

We have developed a new nanofilter using a carbon nanotube-silver composite material that is capable of efficiently removing waterborne viruses and *** nanofilter was subjected to plasma surface treatment to enhance its flow rate,which was improved by approximately 62%.Nanoscale pores were obtained by fabricating a carbon nanotube network and using nanoparticle fixation technology for the removal of *** pore size of the nanofilter was approximately 38 nm and the measured flow rate ranged from 21.0 to 97.2 L/（min·m^2）under a pressure of 1–6 kgf/cm^2 when the amount of loaded carbon nanotube-silver composite was 1.0 mg/cm^*** nanofilter was tested against Polio-,Noro-,and Coxsackie viruses using a sensitive real-time polymerase chain reaction assay to detect the presence of viral particles within the *** trace of viruses was found to flow through the nanofilter with carbon nanotube-silver composite loaded above 0.8 mg/cm^***,the surface of the filter has antibacterial properties to prevent bacterial clogging due to the presence of 20-nm silver nanoparticles,which were synthesized on the carbon nanotube surface.

关键词： Carbon nanotube Silver nanoparticle Virus removal Nanofilter Water purification

Recent trends in the epidemiology and clinical outcomes of inflammatory bowel disease in South Korea,2010-2018

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World Journal of Gastroenterology 2024年第9期30卷 1154-1163页

作者： Seulji kim Hyun Jung Lee Seung Woo Lee Sanghyun Park Seong-Joon Koh jong Pil Im Byeong Gwan kim Kyung-Do han Joo Sung kim Department of Internal Medicine Korea Institute of Radiological and Medical SciencesSeoul 01812South Korea Department of Internal Medicine and Liver Research Institute Seoul National University College of MedicineSeoul 03080South Korea Department of Statistics and Actuarial Science Soongsil UniversitySeoul 06978South Korea

BACKGROUND Inflammatory bowel disease(IBD)was previously regarded as a Western disease;however,its incidence is increasing in the *** epidemiology of IBD in Asia differs significantly from the patterns in the *** To comprehensively investigate the epidemiology of IBD in South Korea,inclu-ding its incidence,prevalence,medication trends,and *** We analyzed claims data from the Health Insurance Review and Assessment Service and Rare and Intractable Diseases(RIDs),operated by the National Health Insurance Service of South *** with IBD were identified based on the International Classification of Diseases,Tenth Revision,and RID diagnostic codes for Crohn’s disease(CD)and ulcerative colitis(UC)from 2010 to *** In total,14498 and 31409 patients were newly diagnosed with CD and UC,respectively,between 2010 and *** annual average incidence of CD was 3.11 cases per 105 person-years,and that of UC was 6.74 cases per 10^(5) *** 2014,the incidence rate of CD has been stable,while that of UC has steadily increased,shifting the peak age group from 50-year-olds in 2010 to 20-year-olds in *** CD and UC prevalence increased consistently over the study period;the use of 5-aminosali-cylates and corticosteroids gradually decreased,while that of immunomodulators and biologics steadily increased in both CD and *** clinical outcomes of IBD,such as hospitalization and surgery,decreased during the study *** The CD incidence has been stable since 2014,but that of UC has increased with a shift to a younger age at peak incidence between 2010 and *** clinical outcomes improved over time,with increased use of immunomodu-lators and biologics.

关键词： Inflammatory bowel disease Crohn’s disease Ulcerative colitis Incidence Prevalence

Inverse correlation between gastroesophageal reflux disease and atrophic gastritis assessed by endoscopy and serology

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World Journal of Gastroenterology 2022年第8期28卷 853-867页

作者： Yoo Min han Su Jin Chung Seokha Yoo jong In Yang Ji Min Choi Jooyoung Lee Joo Sung kim Department of Internal Medicine and Healthcare Research Institute Seoul National University Hospital Healthcare System Gangnam CenterSeoul 06236South Korea Department of Anesthesiology and Pain Medicine Seoul National University College of MedicineSeoul 03080South Korea Department of Internal Medicine and Liver Research Institute Seoul National University College of MedicineSeoul 03080South Korea

BACKGROUND Helicobacter pylori(***)infection is known to prevent the occurrence of gastroesophageal reflux disease(GERD)by inducing gastric mucosal ***,little is known about the relationship between atrophic gastritis(AG)and *** To confirm the inverse correlation between AG and the occurrence and severity of *** Individuals receiving health checkups who underwent upper gastrointestinal endoscopy at Seoul National University Healthcare System Gangnam Center were *** grade of reflux esophagitis was evaluated according to the Los Angeles *** AG(EAG)was categorized into six *** AG(SAG)was defined as pepsinogen I≤70 ng/m L and pepsinogen I/II ratio≤*** association between the extent of EAG and SAG and the occurrence and severity of GERD was evaluated using multivariate logistic regression *** In total,4684 individuals with GERD were compared with 21901 healthy *** multivariate logistic regression analysis,advanced age,male sex,body mass index>23 kg/m2,presence of metabolic syndrome,current smoking,and alcohol consumption were associated with an increased risk of *** for *** immunoglobulin G antibodies was associated with a decreased risk of *** was an inverse correlation between the extent of EAG and occurrence of GERD:Odds ratio(OR),1.01[95%confidence interval(CI):0.90-1.14]in C1,0.87(0.78-0.97)in C2,0.71(0.62-0.80)in C3,0.52(0.44-0.61)in O1,0.37(0.29-0.48)in O2,and 0.28(0.18-0.43)in ***,the extent of EAG showed an inverse correlation with the severity of *** presence of SAG was correlated with a reduced risk of GERD(OR=0.49,95%CI:0.28-0.87,P=0.014).CONCLUSION The extent of EAG and SAG exhibited strong inverse relationships with the occurrence and severity of *** followed by *** infection may be independently protect against GERD.

关键词： Gastroesophageal reflux disease Reflux esophagitis Helicobacter pylori Atrophic gastritis Pepsinogen

Clinical efficacy of combined topical 0.05%cyclosporine A and 0.1%sodium hyaluronate in the dry eyes with meibomian gland dysfunction

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International Journal of Ophthalmology(English edition) 2018年第4期11卷 593-600页

作者： Ho-Yun kim Ji-Eun Lee Ha-Na Oh Ju-Whan Song Sang-Youp han jong-Soo Lee Department of Ophthalmology Maryknoll Medical CenterBusan 48972South Korea Department of Ophthalmology Pusan National University Yangsan HospitalYangsan 50612South Korea Department of Ophthalmology Inje University Baek HospitalBusan 47392South Korea Department of Ophthalmology Kosin University hospitalBusan 49267South Korea Sungrno Eye Clinic Busan 48064South Korea Department of Ophthalmology Pusan National University HospitalBusan 49241South Korea Medical Research Institute Pusan National University HospitalBusan 49241South Korea

AIM： To investigate the efficacy of combined topical 0.05% cyclosporine A（CsA; Restasis~？, Allergan pharmaceuticals, USA） and 0.1% sodium hyaluronate treatment in dry eyes with meibomian gland dysfunction（MGD）.METHODS： In a retrospective analysis, 53 patients（106 eyes） with MGD were enrolled and performed lid warm massage for 10 min daily and be instilled preservative free sodium hyaluronate 0.1% eye drops 4 times daily. Patients were divided into subjects treated with topical 0.05% CsA and preservative free sodium hyaluronate vehicle（experimental group, n=74 eyes） and subjects treated with the preservative free sodium hyaluronate vehicle（control group, n=32 eyes）. They were evaluated at baseline and 1, 2, and 3 mo for subjective symptoms and objective signs including tear film break-up time（t BUT）, Schirmer test, corneal staining（CS） score, lid margin telangiectasia（LMT）, meibomian gland secretion（MGS）, and conjunctival injection（CI）.RESULTS： In the short-term treatment, the experimental group showed a statistically significant improvement in the ocular surface disease index（OSDI; P〈0.001）, tBUT（P=0.004）, Schirmer test score（P=0.008） and LMT（P=0.021） by repeated measure ANOVA. Additionally, mean changes from baseline in OSDI（P〈0.001）, tBUT（P=0.001）, Schirmer test score（P=0.029）, CS score（P=0.047）, LMT（P=0.002）, CI（P=0.030） were improved better in the experimental group than in the control group at 3 mo. However, there was no significant difference between the two groups in MGS（P=0.67）.CONCLUSION： In dry eyes with MGD, 0.05% CsA improves the tear film stability as well as subjective ocular discomfort, and is effective in controlling lid margin inflammation.

关键词： 0.05% cyclosporine 0.1% hyauronate meibomian gland dysfunction dry eye

Effect of focal laser photocoagulation in eyes with mild to moderate non-proliferative diabetic retinopathy

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International Journal of Ophthalmology(English edition) 2016年第10期9卷 1439-1443页

作者： Seong Hun Jeong Jung Il han Sung Won Cho Dong Won Lee Chul Gu kim Tae Gon Lee jong Woo kim Department of Ophthalmology Kim's Eye HospitalMyung-Gok Eye Research InstituteKonyang University College of Medicine

AIM：To report the effect of focal laser photocoagulation on both the severity of hard exudates（HEs） and the rate of disease progression in eyes with mild to moderate non-proliferative diabetic retinopathy（NPDR）.METHODS： We retrospectively reviewed the medical records of 33 patients（60 eyes） who had been diagnosed with mild to moderate NPDR between January 2006 and December *** patients were divided into 2 groups：Group A（38 eyes in 20 patients treated using focal laser photocoagulation） and Group B（treated without laser photocoagulation）.We also reviewed the best corrected visual acuity measurements,and the fundus photographs taken at both baseline and follow-up visits. RESULTS： In Group A,HE severity grade had decreased significantly from baseline to the final visit（P 〈0.05）,but this was not the case in Group B（P =0.662）.The cumulative probabilities of retinopathy progression at 5y were 26% in Group A and 30% in Group *** survival curves showed no significant difference between the groups with regard to retinopathy progression（P =0.805）.CONCLUSION： Focal laser photocoagulation reduced the levels of HEs in eyes with mild to moderate ***,the treatment was not able to decelerate the progression of DR.

关键词： focal laser diabetic retinopathy retina non-proliferative diabetic retinopathy

Energy Estimate for the Type-Ⅱ Superconducting Film

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Acta Mathematica Sinica,English Series 2008年第1期24卷 75-86页

作者： Kwang Ik kim Zu han LIU Department of Mathematics Pohang University of Science and Technology Pohang 790-784 Republic of Korea Department of Mathematics Xuzhou Normal University Xuzhou 221116 P. R. China

We study the minimizers of the Ginzburg-Landau model for variable thickness, superconducting, thin films with high k, placed in an applied magnetic field hex, when hex is of the order of the ＂first critical field＂, i.e. of the order of ｜lnε｜. We obtain the asymptotic estimates of minimal energy and describe the possible locations of the vortices.

关键词： superconductivity Ginzburg-Landau functional free boundary problem