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Large colonic lipoma with a laterally spreading tumor treated by endoscopic submucosal dissection:A case report

世界临床病例杂志 2023年第26期11卷 6194-6199页

作者： Jun Yong Bae Hun Kyu kim Yee Jin kim se Woong kim Youngeun Lee chang Beom Ryu Moon Sung Lee Internal Medicine and Digestive Disease Center Seoul Medical CenterSeoul 02053South Korea Department of Pathology Seoul Medical CenterSeoul 02053South Korea Internal Medicine and Digestive Disease Center and Research Institute Soon Chun Hyang University of School of MedicineBucheon 14584South Korea

BACKGROUND Since fat does not transmit electrical energy well,delayed perforation and postpolypectomy syndrome due to electrical thermal injury are concerns in the endoscopic removal of colonic *** endoscopic submucosal dissection(ESD)technique concentrates electrical energy conducts to the submucosa,not the adipose *** helps to minimize electrical thermal injury,especially in the case of large colonic *** rare cases,such as colonic lipomas accompanied by mucosal lesions,it is difficult for endoscopists to decide how to safely remove *** SUMMARY A 78-year-old man underwent colonoscopy for colorectal cancer *** colonoscopy,a yellowish submucosal tumor with positive cushion sign was observed in the ascending colon measuring about 4.5 cm.A nodular mucosal lesion of about 2.5 cm was observed on the mucosal surface of the *** lipoma was so large that it occupied much of the inside of the colon,making it difficult to see the entire laterally spreading tumor(LST)at *** LST was confined to the surface of the lipoma,which had a semipedunculated shape with a wide *** margin of the LST was not observed at the neck of the *** was performed and the colonic lipoma with the LST was successfully removed without *** 3 d of hospitalization,the patient was discharged without any *** final pathology report showed that the lesion consisted of submucosal lipoma and tubulovillous adenoma with lowgrade *** ESD is effective and safe for treating a large colonic lipoma with an LST by minimizing electrical thermal injury.

关键词： Colonic lipoma Endoscopic submucosal dissection Laterally spreading tumor Tubulovillous adenoma Electrical injury Case report

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Re-visiting supersymmetric Janus solutions: a perturbative construction

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Chinese Physics C 2020年第7期44卷 43-54页

作者： Nakwoo kim se-Jin kim Department of Physics and Research Institute of Basic Science Kyung Hee UniversitySeoul 02447Republic of Korea

We construct holographic Janus solutions,which describe a conformal interface in the theory of M2-branes,in four-dimensional gauged supergravities using a perturbative *** particular,we study three Einsteinscalar systems and their BPS equations,which are derived by Bobev,Pilch,and Warner(2014).The actions of our interest are all consistent truncations of D=11 supergravity,chosen to be invariant under SO(4)×SO(4),SU(3)×U(1)×U(1),and G2 symmetry subgroups of SO(8).The utility of our semi-analytic result is illustrated by the calculation of minimal area surface and the associated holographic entanglement entropy.

关键词： holography Janus solutions supergravity entanglement entropy

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Die Casting Mold Design of the Thin-walled Aluminum Case by Computational Solidification Simulation

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Journal of Materials Science & Technology 2008年第3期24卷 383-388页

作者： Young-chan kim chang-seog Kang Jae-Ik Cho chang-Yeol Jeong se-Weon Choi Sung-Kil Hong Korea Institute of Industrial Technology Chonnam National University

Recently, demand for the lightweight alloy in electric/electronic housings has been greatly increased. However, among the lightweight alloys, aluminum alloy thin-walled die casting is problematic because it is quite difficult to achieve sufficient fluidity and feedability to fill the thin cavity as the wall thickness becomes less than 1mm. Therefore, in this study, thin-walled die casting of aluminum （Al-Si-Cu alloy： ALDC 12） in size of notebook computer housing and thickness of 0.8 mm was investigated by solidification simulation （MAGMA soft） and actual casting experiment （Buhler Evolution B 53D）. Three different types of gating design, finger, tangential and split type with 6 vertical runners, were simulated and the results showed that sound thin-walled die casting was possible with tangential and split type gating design because those gates allowed aluminum melt to flow into the thin cavity uniformly and split type gating system was preferable gating design comparing to tangential type gating system at the point of view of soundness of casting and distortion generated after solidification. Also, the solidification simulation agreed well with the actual die-casting and the casting showed no casting defects and distortion.

关键词： Aluminum casting alloy Thin-wall die casting Solidification simulation

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Successful treatment of a high-risk nonseminomatous germ cell tumor using etoposide, methotrexate, actinomycin D, cyclophosphamide, and vincristine: A case report

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World Journal of Clinical Cases 2020年第21期8卷 5334-5340页

作者： Jina Yun Sang W Lee Sung H Lim se H kim chan K kim seong K Park Department of Internal Medicine Division of Hematology-OncologySoonchunhyang University Bucheon HospitalSoonchunhyang University School of MedicineBucheon 14584South Korea Department of Urology and Internal Medicine Soonchunhyang University Bucheon HospitalSoonchunhyang University School of MedicineBucheon 14584South Korea

BACKGROUND Choriocarcinoma is an infrequent entity and the most aggressive subtype of germcell *** of early metastatic spread and rapid disease progression,choriocarcinoma patients display poor *** etoposide,methotrexate,actinomycin D,cyclophosphamide,and vincristine(EMA-CO)regimen is widely used to treat gestational trophoblastic tumors in females,its role in treating male choriocarcinoma is seldom *** SUMMARY A 32-year-old man was diagnosed with burned-out primary germ cell tumors(GCT)with retroperitoneum,liver and lung *** of the liver revealed pure *** patient received bleomycin,etoposide,and cisplatin *** two cycles of treatment,response evaluation revealed the mixed ***-CO regimen was used in the second-line *** eight cycles,the patient showed a potentially resectable state and thus,all residual masses were surgically *** patient was completely cured,and 10 years later,he is leading a healthy life without *** This paper is the first case of high-risk nonseminomatous GCT in a male patient to be successfully treated with the EMA-CO *** EMA-CO regimen can be used actively in patients with high-risk nonseminomatous GCT.

关键词： Antineoplastic combined chemotherapy protocols Choriocarcinoma Testicular neoplasms Cyclophosphamide Methotrexate Case report

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Incidence and Related Risk Factors of Junctional Ectopic Tachycardia in Infants after Cardiac Surgery for Congenital Heart Disease

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Congenital Heart Disease 2022年第5期17卷 569-578页

作者： Jae Hee seol se Yong Jung Jae Young Choi Han Ki Park Young Hwan Park Nam Kyun kim Department of Pediatrics Congenital Heart Disease CenterDivision of Pediatric CardiologySeverance Cardiovascular HospitalYonsei University College of MedicineSeoulKorea Department of Pediatrics Yonsei University Wonju College of MedicineWonjuKorea Department of Thoracic and Cardiovascular Surgery Division of Cardiovascular SurgeryCongenital Heart Disease CenterSeverance Cardiovascular HospitalYonsei University College of MedicineSeoulKorea Department of Pediatrics and Biomedical Engineering School of MedicineEmory UniversityAtlantaUSA

Objective:Junctional ectopic tachycardia is common after cardiac surgery for congenital heart ***,its incidence and related risk factors in infants after cardiac surgery are not well *** objective of this study was to determine the overall incidence and related risk factors for junctional ectopic tachycardia in neonates and ***:We enrolled a total of 271 patients agedseverance Cardiovascular Hospital from January 2018 to December *** criteria were immediate postoperative mortality,other arrhythmias detected in the perioperative period,and ***:The overall incidence of junctional ectopic tachycardia was 12.9%.The logistic regression analysis revealed that longer cardiopulmonary bypass time,surgery involving atrioventricular node stretching,and the presence of early repolarization on preoperative electrocardiography increased the risk of junctional ectopic *** with junctional ectopic tachycardia had longer intubation time and intensive care unit ***:Junctional ectopic tachycardia is a common arrhythmia after cardiac surgery for congenital heart disease in ***,infants developing junctional ectopic tachycardia after cardiac surgery have specific preoperative electrocardiography *** risk factors for junctional ectopic tachycardia were associated not only with surgical procedural factors but also with preoperative electrocardiographic parameters.

关键词： Junctional ectopic tachycardia congenital heart disease early re-polarization

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Phytogenic feed additives alleviate pathogenic Escherichia coli-induced intestinal damage through improving barrier integrity and inhibiting inflammation in weaned pigs

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Journal of Animal Science and Biotechnology 2023年第1期14卷 295-306页

作者： se Yeon chang Min Ho Song Ji Hwan Lee Han Jin Oh Yong Ju kim Jae Woo An Young Bin Go Dong Cheol Song Hyun AhCho seung Yeol Cho Dong Jun kim Mi Suk kim Hyeun Bum kim Jin Ho Cho Department of Animal Science Chungbuk National UniversityCheongju 28644South Korea. Division of Animal and Dairy Science Chungnam National UniversityDaejeon 34134South Korea. Eugene-Bio Suwon 16675South Korea. Department of Animal Resources Science Dankook UniversityCheonan 31116South Korea.

Background:This study was conducted to investigate the effects of each phytogenic feed additive(PFA;PFA1,bitter citrus extract;PFA2,a microencapsulated blend of thymol and carvacrol;PFA3,a mixture of bitter citrus extract,thymol,and carvacrol;PFA4,a premixture of grape seed,grape marc extract,green tea,and hops;PFA5,fenugreek seed powder)on the growth performance,nutrient digestibility,intestinal morphology,and immune response in weaned pigs infected with Escherichia coli(***).Results:A total of 634-week-old weaned pigs were placed in individual metabolic cages and assigned to seven treatment *** seven treatments were as follows:1)NC;basal diet without *** challenge,2)PC;basal diet with *** challenge,3)T1;PC+0.04%PFA1,4)T2;PC+0.01%PFA2,5)T3;PC+0.10%PFA3,6)T4;PC+0.04%PFA4,7)T5;PC+0.10%*** experiments lasted in 21 d,including 7 d before and 14 d after the first *** *** the *** challenge treatments,all pigs were orally inoculated by dividing a total of 10 mL of *** F18 for 3 consecutive *** PFA-added groups significantly increased(Psed(Pse,intestinal morphology,and expression of tight junction

关键词： Barrier integrity Escherichia coli Immunity Phytogenic feed additive Post-weaning diarrhea Weaned pigs

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Endovascular treatment of traumatic renal artery pseudoaneurysm with a Stanford type A intramural haematoma:A case report

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World Journal of Clinical Cases 2022年第27期10卷 9760-9767页

作者： Yook kim Jin Young Lee Jin Suk Lee Jin Bong Ye se Heon kim Young Hoon Sul Su Young Yoon Jung Hee Choi Hanlim Choi Department of Radiology Chungbuk National University HospitalCheongju-si 28644Chungcheongbuk-doSouth Korea Department of Trauma Surgery Chungbuk National University HospitalCheongju-si 28644Chungcheongbuk-doSouth Korea Department of Trauma Surgery College of MedicineChungbuk National UniversityCheongju-si 28644Chungcheongbuk-doSouth Korea Cardiovascular and Thoracic Surgery Chungbuk National University HospitalCheongju-si 28644Chungcheongbuk-doSouth Korea Anesthesiology and Pain Medicine Chungbuk National University HospitalCheongju-si 28644Chungcheongbuk-doSouth Korea Department of Surgery Chungbuk National University HospitalCheongju-si 28644Chungcheongbuk-doSouth Korea

BACKGROUND Aortic intramural hematoma(IMH) associated with aortic branch tear and intramurally located pseudoaneurysm after blunt trauma has not been ***,we report a case of progressive type A aortic IMH associated with a pseudoaneurysm arising from the injured proximal renal artery after blunt *** SUMMARY During logging operations,a 66-year-old man experienced blunt force trauma after being injured by a fallen *** arrived at our trauma center with a left flank pain *** tomography(CT) revealed a pseudoaneurysm arising from the proximal renal artery(localized within the aortic media) and Stanford type A IMH.A covered stent was deployed along the left main renal artery,bridging the pseudoaneurysm and covering the parent artery,successfully excluding the pseudoaneurysm as confirmed using ***,although the degree of the pseudoaneurysm decreased,follow-up CT revealed remnant pseudoaneurysm,likely caused by an ***,a covered stent was additionally installed through the previously deployed covered *** exclusion of the pseudoaneurysm was confirmed using final *** the 7-mo follow-up CT scan,the IMH and pseudoaneurysm completely disappeared with no evidence of stent-related *** Endovascular treatment such as stent-graft placement can be an effective and safe treatment for traumatic renal artery injury.

关键词： Aortic intramural hematoma Blunt trauma Intimomedial tear Renal arterial injury Stent-graft Case report

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On-skin and tele-haptic application of mechanically decoupled taxel array on dynamically moving and soft surfaces

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npj Flexible Electronics 2022年第1期6卷 964-972页

作者： se Young Kwon Gyeongsuk Park Hanbit Jin changyeon Gu seung Jin Oh Joo Yong Sim Wooseup Youm Taek-Soo kim Hye Jin kim Steve Park Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea Electronics and Telecommunications Research Institute(ETRI) Daejeon 34129Republic of Korea Department of Mechanical Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea Department of Mechanical Systems Engineering Sookmyung Women’s UniversityDaejeon 04313Republic of Korea

To accurately probe the tactile information on soft skin,it is critical for the pressure sensing array to be free of noise and inter-taxel crosstalk,irrespective of the measurement ***,on dynamically moving and soft surfaces,which are common conditions for on-skin and robotic applications,obtaining precise measurement without compromising the sensing performance is a significant challenge due to mechanical coupling between the sensors and with the moving *** this work,multi-level architectural design of micro-pyramids and trapezoid-shaped mechanical barrier array was implemented to enable accurate spatiotemporal tactile sensing on soft surfaces under dynamic ***-off relationship between limit of detection and bending insensitivity was discovered,which was overcome by employing micropores in barrier ***,in-situ pressure mapping on dynamically moving soft surfaces without signal distortion is demonstrated while human skin and/or soft robots are performing complicated tasks such as reading Braille and handling the artificial organs.

关键词： artificial moving dynamically

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Multidimensional thermally-induced transformation of nest-structured complex Au-Fe nanoalloys towards equilibrium

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Nano Research 2022年第1期15卷 581-592页

作者： Jacob Johny Oleg Prymak Marius Kamp Florent Calvo se-Ho kim Anna Tymoczko Ayman El-Zoka Christoph Rehbock Ulrich Schurmann Baptiste Gault Lorenz Kienle Stephan Barcikowski Technical Chemistry I and Center for Nanointegration Duisburg-Essen(CENIDE) University of Duisburg-EssenEssen 45141Germany Inorganic Chemistry and Center for Nanointegration Duisburg-Essen(CENIDE) University of Duisburg-EssenEssen 45141Germany Institute for Materials Science Synthesis and Real StructureKiel UniversityKiel 24143Germany University Grenoble Alpes CNRSLiPhyGrenoble 38000France Max-Planck-Institut fur Eisenforschurtg GmbH Diisseldorf40237Germany Department of Materials Royal School of MineImperial College LondonLondon SW72AZUK

Bimetallic nanoparticles are often superior candidates for a wide range of technological and biomedical applications owing to their enhanced catalytic,optical,and magnetic properties,which are often better than their monometallic *** of their properties strongly depend on their chemical composition,crystallographic structure,and phase ***,little is known of how their crystal structure,on the nanoscale,transforms over time at elevated temperatures,even though this knowledge is highly relevant in case nanoparticles are used in,e.g.,high-temperature ***-Fe is a promising bimetallic system where the low-cost and magnetic Fe is combined with catalytically active and plasmonic ***,we report on the in s/fi;temporal evolution of the crystalline ordering in Au-Fe nanoparticles,obtained from a modern laser ablation in liquids *** in-depth analysis,complemented by dedicated atomistic simulations,includes a detailed structural characterization by X-ray diffraction and transmission electron microscopy as well as atom probe tomography to reveal elemental distributions down to a single atom *** show that the Au-Fe nanoparticles initially exhibit highly complex internal nested nanostructures with a wide range of compositions,phase distributions,and size-depended *** elevated temperature induces a diffusion-controlled recrystallization and phase merging,resulting in the formation of a single face-centered-cubic ultrastructure in contact with a body-centered cubic phase,which demonstrates the metastability of these *** these unique nanostructures with nested features could be highly attractive from a fundamental viewpoint as they could give further insights into the nanoparticle formation mechanism under non-equilibrium ***,the in situ evaluation of the crystal structure changes upon heating is potentially relevant for high-temperature process utilization of bimetallic na

关键词： nanoparticles in situ atom probe tomography diffusion recrystallization atomistic simulation

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Effect of post heat-treatment on the microstructure and high-temperature oxidation behavior of precipitation hardened IN738LC superalloy fabricated by selective laser melting

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Journal of Materials Science & Technology 2021年第17期76卷 95-103页

作者： Kyu-Sik kim Sangsun Yang Myeong-se kim Kee-Ahn Lee Department of Materials Science and Engineering Inha UniversityIncheon 22212Republic of Korea Korea Institute of Materials Science Changwon51508Republic of Korea Auratech Co. Ltd.Seongnam13449Republic of Korea

The present study investigated the effect of as-built and post heat-treated microstructures of IN738LC alloy fabricated via selective laser melting process on high temperature oxidation *** as-built microstructure showed fine cell and columnar structure due to high cooling *** element segregation was observed in inter-cell/inter-columnar *** post heat-treatment,the initially-observed cell structure disappeared,instead bimodal Ni_3(Al,Ti)particles *** temperature(1273 K and 1373 K)oxidation test results showed parabolic oxidation curves regardless of temperature and initial *** as-built IN738LC fabricated via the selective laser melting process displayed oxidation resistance similar to or slightly better than that of IN738LC fabricated via wrought or cast ***-treated SLM IN738LC,although had similar oxidation weight-gain values to those of the SLM asbuilt material at 1273K,showed relatively better oxidation resistance at 1373 *** Ni_3(Al,Ti)precipitate formed in the post heat treatment changed the local chemical composition,thereby led to changes in alumina former/chromia former location and fraction on the alloy *** was concluded that in heat-treated IN738LC increased alumina former fraction was found,and this resulted in excellent oxidation resistance and relatively low weight-gain.

关键词： IN738LC selective laser melting High temperature oxidation Post heat-treatment Oxidation mechanism

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