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Outcome after gastrectomy in gastric cancer patients with type 2 diabetes

World Journal of Gastroenterology 2012年第1期18卷 49-54页

作者： Jong Won kim jae-Ho Cheong Woo Jin Hyung Seung-Ho Choi sung Hoon Noh Department of Surgery Gangnam Severance Hospital Yonsei University College of Medicine Department of Surgery Severance Hospital Yonsei University College of Medicine

AIM: To evaluate the prognosis of type Ⅱ diabetes mellitus (T2DM) after gastrectomy and related factors in gastric cancer patients. METHODS: 403 gastric cancer patients with T2DM were studied, who underwent gastrectomy between May 2003 and September 2009. A review of medica records and telephone interviews was performed in this cross-sectional study. The factors included in the statistical analysis were as follows: gender, age, type of surgery, preoperative body mass index (BMI), current BMI, BMI reduction ratio, preoperative insulin or oral diabetic medicine requirement, follow-up duration, and current state of diabetes. Assessment of diabetes status after surgery was classified into four categories according to the change in hypoglycemic agents after surgery and present status of T2DM: resolution, improvement, same, and worse.(± 20.6 mo), preoperative BMI was 24.7 kg/m2 (± 3.0 kg/m2), and BMI reduction ratio was 9.8% (± 8.6%). After surgery, T2DM was cured in 58 patients (15.1%) and was improved in 117 patients (30.4%). According to the type of surgery, the BMI reduction ratio was signif icantly higher in the total gastrectomy and Roux-en-Y reconstruction group [14.2% ± 9.2% vs 9.2% ± 7.7% (Billroth Ⅱ group), P < 0.001] and signif icantly lower in the subtotal gastrectomy and Billroth Ⅰ reconstruction group [7.6% ± 8.0%, 9.2% ± 7.7% (Billroth Ⅱ group), P < 0.001]. The BMI reduction ratio, follow-up duration after surgery, type of surgery, extent of gastrectomy, and performance of duodenal bypass were signif icantly correlated to the course of T2DM (P < 0.05). The BMI reduction ratio was the most influential factor on T2DM status. In a subgroup analysis of patients with a BMI reduction ratio of 10% or less (n = 206), T2DM was cured in 15 (7.6%) patients and was improved in 57 (28.8%) patients after surgery, and only the duration of surgery was signif icantly correlated to T2DM status (P = 0.022).

关键词： Gastric cancer Diabetes mellitus Metabolic surgery Bariatric surgery

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Grasper type scissors for endoscopic submucosal dissection of gastric epithelial neoplasia

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World Journal of Gastroenterology 2013年第37期19卷 6221-6227页

作者： Woo-Chul Chung Byung-Wook kim Chul-Hyun Lim Tae-Ho kim jae-Myung Park Joon-sung kim Division of Gastroenterology Department of Internal MedicineSuwon St.Vincent’s HospitalThe Catholic University of Korea Division of Gastroenterology Department of Internal MedicineIncheon St.Mary’s HospitalThe Catholic University of Korea Division of Gastroenterology Department of Internal MedicineSeoul St.Mary’s HospitalThe Catholic University of Korea Division of Gastroenterology Department of Internal MedicineBucheon St.Mary’s HospitalThe Catholic University of Korea

AIM:To evaluate the efficacy and safety of grasper type scissors(GTS)for endoscopic submucosal dissection(ESD)of gastric epithelial ***:The study was performed by 4 endoscopists in 4 institutions affiliated to The Catholic University of *** was performed in 76 consecutive patients with gastric epithelial neoplasia by using the GTS(37 patients)or the hook knife plus coagrasper(HKC)(39 patients).The complete resection rate,complication rate,total time elapsed and elapsed time per square centimeter of the dissected specimen were analyzed between the GTS and HKC ***:The mean age of the GTS group was 62.3±11.4 years and mean age of the HKC group was 65.6±10.1 *** adenocarcinoma was found in32.4%in the GTS group and 33.3%in the HKC *** procedures were performed without interruption in every case in both *** en bloc resection rates of both groups were 100%.The total time elapsed during the procedure was 44.54±21.72 min in the GTS group and 43.77±21.84 min in the HKC group(P=0.88)and the time elapsed per square centimeter of the resected lesion was 7.53±6.35 min/cm2in the GTS group and 6.92±5.93 min/cm2in the HKC group(P=0.66).The overall complication rate was not significantly different between the two ***:GTS is a safe and effective device for ESD compared with *** can be performed with GTS alone,which can reduce the costs for ESD.

关键词： Gastric epithelial neoplasia Endoscopic submucosal dissection Grasper type scissors Hook knife Coagrasper

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Electrochemical biosensors for point-of-care testing

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Bio-Design and Manufacturing 2024年第4期7卷 548-565页

作者： Jinsol kim Juho Jeong Seung Hwan ko Department of Mechanical Engineering Seoul National UniversitySeoul 08826Republic of Korea Institute of Advanced Machinery and Design(SNU-IAMD) Seoul National UniversitySeoul 08826Republic of Korea

Point-of-care testing(POCT)is the practice of diagnosing and monitoring diseases where the patient is located,as opposed to traditional treatment conducted solely in a medical laboratory or other clinical *** has been less common in the recent past due to a lack of portable medical devices capable of facilitating effective medical ***,recent growth has occurred in this field due to advances in diagnostic technologies,device miniaturization,and progress in wearable *** these developments,electrochemical sensors have attracted interest in the POCT field due to their high sensitivity,compact size,and *** are used in various applications,from disease diagnosis to health status *** this paper we explore recent advancements in electrochemical sensors,the methods of fabricating them,and the various types of sensing mechanisms that can be ***,we delve into methods for immobilizing specific biorecognition elements,including enzymes,antibodies,and aptamers,onto electrode surfaces and how these sensors are used in real-world POCT settings.

关键词： Point-of-care testing(POCT) Electrochemical sensor Enzyme Antibody Health care

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Supercritical water oxidation for the destruction of toxic organic wastewaters:A review

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Journal of Environmental Sciences 2007年第5期19卷 513-522页

作者： VERIANSYAH Bambang kim jae-Duck Supercritical Fluid Research Laboratory Korea Institute of Science and Technology (KIST)-Department of Green Process and System EngineeringUniversity of Science and Technology (UST)39-1 Hawolgok-dongSeoungbuk-guSeoul 136-791Korea

The destruction of toxic organic wastewaters from munitions demilitarization and complex industrial chemical clearly becomes an overwhelming problem if left to conventional treatment processes. Two options, incineration and supercritical water oxidation （SCWO）, exist for the complete destruction of toxic organic wastewaters. Incinerator has associated problems such as very high cost and public resentment; on the other hand, SCWO has proved to be a very promising method for the treatment of many different wastewaters with extremely efficient organic waste destruction 99.99% with none of the emissions associated with incineration. In this review, the concepts of SCWO, result and present perspectives of application, and industrial status of SCWO are critically examined and discussed.

关键词： supercritical water oxidation toxic wastewater treatment SCWO industrial status

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Genetically confirmed Wilson disease in a 9-month old boy with elevations of aminotransferases

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World Journal of Hepatology 2013年第3期5卷 156-159页

作者： Joo Whee kim Jong Hyun kim Jeong Kee Seo jae sung ko Ju Young Chang Hye Ran Yang Kyung Hoon Kang Department of Pediatrics Seoul National University Children's Hospital Department of Pediatrics St. Vincent's Hospital The Catholic University of Korea Department of Pathology Seoul National University Children's Hospital

Wilson disease (WD) is an autosomal recessive disorder of copper transport caused by alteration of the adenosine triphosphatase 7B gene. It is rare to diagnose WD below the age of three years. Molecular genetic testing is one of the most important diagnostic methods and may confirm the diagnosis in equivocal cases. We report a case of a 9-mo old boy with WD who presented as chronic hepatitis. Genetic analysis showed compound heterozygotes of p.G1186S and c.4006delA.

关键词： Hepatolenticular degeneration Wilson disease Early diagnosis Molecular genetics Mutation

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Engineered NiCo-LDH nanosheets- and ZnFe_(2)O_(4) nanocubes-decorated carbon nanofiber bonded mats for high-rate asymmetric supercapacitors

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Green Energy & Environment 2022年第6期7卷 1228-1240页

作者： jae-Gyoung Seong Tae Hoon ko Danyun Lei Woong-Ki Choi Yun-Su Kuk Min-Kang Seo Byoung-Suhk kim Department of Organic Materials&Fiber Engineering Jeonbuk National University567 Baekje-daeroDeokjin-guJeonju-siJeollabuk-do54896Republic of Korea Department of BIN Convergency Technology Jeonbuk National University567 Baekje-daeroDeokjin-guJeonju-siJeollabuk-do54896Republic of Korea korea Institute of Carbon Convergence Technology Jeonju54852Republic of Korea Department of Environmental Biology and Water Engineering College of Urban ConstructionWuchang Shouyi UniversityWuhan430064China

In this work,we have prepared the hierarchically nanostructured core–shell NiCo layered double hydroxide(NiCo-LDH)nanosheets-and ZnFe_(2)O_(4) nanocubes-decorated polyacrylonitrile(PAN)/pitch-based carbon nanofibers(PPCNs)webs(NiCo-LDH@PPCNs as cathode and ZnFe_(2)O_(4)@PPCNs as anode materials)with the bonded network structure by a facile and scalable hydrothemal ***,the low-cost pitch with lower softening point(~90℃)as co-precursor was utilized to produce the PAN/pitch-based carbon nanofibers(PPCNs)with enhanced electrical *** obtained PPCNs with pitch content of 30%(PP30CNs)electrode material delivered higher specific capacitance(~67 F g^(-1))than that(~48 F g^(-1))of the PAN-based carbon nanofibers(PCNs)at 1 A g^(-1),due to the increased electrical conductivity and lower interfacial charge transfer resistance(RCT)of~0.16 ***,the NiCo-LDH-decorated PP30CNs(NiCoLDH@PP30CNs)as cathode material showed superior specific capacitance of 1162 F g^(-1) at 1.0 A g^(-1) and ultra-high retention rate of 91.56%at 10 A g^(-1).The ZnFe_(2)O_(4)@PP30CNs as anode material also showed higher specific capacitance of 282 F g^(-1) at 1 A g^(-1) and good rate capability with capacitance retention of 56.73%at 10 A g^(-1).The as-fabricated asymmetric NiCo-LDH@PP30CNs//ZnFe_(2)O_(4)@PP30CNs hybrid supercapacitor device delivered a specific capacitance of~98 F g^(-1) at 1 A g^(-1) and excellent capacitance retention of~88%after 5000 charge–discharge cycles.

关键词： Carbon nanofiber Pitch Asymmetric Rate capability Supercapacitor

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Effects of thickness of Al thermal spray coating for STS 304

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中国有色金属学会会刊：英文版 2009年第4期19卷 925-929页

作者： Min-Su HAN Yong-Bin WOO Seok-Cheol ko Young-jae JEONG Seok-Ki JANG Seong-Jong kim Division of Marine Engineering Mokpo Maritime University Chungnam Regional Innovation Agency Jeonnam Techno Park

Thermal spray coating presents a sacrificial-anode cathodic protection method since differences between the potentials of materials are *** a base metal is exposed to seawater,due to defect in the thermal spray coating,the metal is protected by the sacrificial anodic characteristics of the coating layer because micro-cells formed by the base metal and the thermal spray coating act as cathodes and anodes,*** coating thickness has little effect on the surface morphology of the ***,the electrochemical properties with the increasing of coating thickness present good results.

关键词：涂层厚度热喷涂 STS 金属接触电化学性能保护方法牺牲阳极阳极涂层

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Ionizing terahertz waves with 260 MV/cm from scalable optical rectification

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Light(Science & Applications) 2024年第6期13卷 1075-1087页

作者： Hyeongmun kim Chul Kang Dogeun Jang Yulan Roh Sang Hwa Lee Joong Wook Lee jae Hee sung Seong Ku Lee Ki-Yong kim Advanced Photonics Research Institute GISTGwangju61005Korea Department of Physics and Optoelectronics Convergence Research Center Chonnam National UniversityGwangju61186Korea Pohang Accelerator Laboratory POSTECHPohang37673Korea Center for Relativistic Laser Science Institute for Basic ScienceGwangju61005Korea Institute for Research in Electronics and Applied Physics Department of PhysicsUniversity of MarylandCollege ParkMaryland20742USA

Terahertz(THz)waves,known as non-ionizing radiation owing to their low photon energies,can actually ionize atoms and molecules when a sufficiently large number of THz photons are concentrated in time and ***,we demonstrate the generation of ionizing,multicycle,15-THz waves emitted from large-area lithium niobate crystals via phase-matched optical rectification of 150-terawatt laser pulses.A complete characterization of the generated THz waves in energy,pulse duration,and focal spot size shows that the field strength can reach up to 260 megavolts per *** particular,a single-shot THz interferometer is employed to measure the THz pulse duration and spectrum with complementary numerical *** intense THz pulses are irradiated onto various solid targets to demonstrate THz-induced tunneling ionization and plasma *** study also discusses the potential of nonperturbative THz-driven ionization in gases,which will open up new opportunities,including nonlinear and relativistic THz physics in plasma.

关键词： optical interferometer matched

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Enhancing ammonia production rates from electrochemical nitrogen reduction by engineering three-phase boundary with phosphorus-activated Cu catalysts

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Journal of Energy Chemistry 2023年第9期84卷 394-401页

作者： Jeehye kim Cho Hee Lee Yong Hyun Moon Min Hee Lee Eun Hyup kim Sun Hee Choi Youn Jeong Jang jae sung Lee School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea Department of Chemical Engineering Hanyang UniversitySeoul 04763Republic of Korea Pohang Accelerator Laboratory(PAL) Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea

Electrochemical N_(2) reduction reaction(eNRR) over Cu-based catalysts suffers from an intrinsically low activity of Cu for activation of stable N_(2) molecules and the limited supply of N_(2) to the catalyst due to its low solubility in aqueous ***,we propose phosphorus-activated Cu electrocatalysts to generate electron-deficient Cu sites on the catalyst surface to promote the adsorption of N_(2) *** eNRR system is further modified using a gas diffusion electrode(GDE) coated with polytetrafluoroethylene(PTFE) to form an effective three-phase boundary of liquid water-gas N_(2)-solid catalyst to facilitate easy access of N_(2) to the catalytic *** a result,the new catalyst in the flow-type cell records a Faradaic efficiency of 13.15% and an NH_(3) production rate of 7.69 μg h^(-1) cm^(-2) at-0.2 V_(RHE),which represent 3.56 and 59.2 times increases from those obtained with a pristine Cu electrode in a typical electrolytic *** work represents a successful demonstration of dual modification strategies;catalyst modification and N_(2) supplying system engineering,and the results would provide a useful platform for further developments of electrocatalysts and reaction systems.

关键词： Electrochemical nitrogen reduction reaction Ammonia production Phosphorous modified copper electrodes Gas diffusion electrodes Three-phase boundary PTFE coating

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Biopeptides of Pyropia yezoensis and their potential health benefits: A review

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Asian Pacific Journal of Tropical Biomedicine 2021年第9期11卷 375-384页

作者： Sivakumar Allur Subramaniyan Naziya Begum sung jae kim Youn Hee Choi Taek-Jeong Nam Institute of Fisheries Sciences Pukyong National UniversityBusan 46041South Korea Department of Chemistry College of Natural and computational sciencesDebre Berhan UniversityDebye BerhanP.O.Box-445 Ethiopia Department of Orthopaedic Surgery Dongtan Sacred Heart HospitalHallym University College of MedicineHwaseongRepublic of Korea Department of Marine Bio-Materials&Aquaculture Pukyong National UniversityBusan 48513South Korea

Pyropia yezoensis(***)is a popular species of red algae that are commercially cultivated and consumed in East Asia,China,Japan,and *** high protein content of *** provides a source of multiple bioactive peptides exhibiting antioxidant,anti-inflammatory,antihypertensive,anticancer,tissue healing,immunomodulatory,and anticoagulant ***,many other biologically active substances in ***,including carbohydrates,lipids,dietary fibers,and polyphenols,have shown potential health benefits and are important in both the food and agriculture *** review provides a detailed summary of researches over the last decade on the biological and medicinal properties of bioactive *** information was extracted from various electronic resources,including Google Scholar,PubMed,MEDLINE,and Google Patents.

关键词： Red algae Pyropia Bioactive peptides Human health

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