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Ion shielding functional separator using halloysite containing a negative functional moiety for stability improvement of Li–S batteries

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Journal of Energy Chemistry 2021年第9期30卷 334-340页

作者： Yong Min Kwon Jihoon Kim Kuk young Cho Sukeun yoon Division of Advanced Materials Engineering&Institute for Rare Metals Kongju National UniversityChungnam 31080Republic of Korea Department of Materials Science and Chemical Engineering Hanyang UniversityGyeonggi 15588Republic of Korea

Lithium–sulfur batteries are one of the attractive next-generation energy storage systems owing to theienvironmental friendliness,low cost,and high specific energy ***,the low electrical conductivity of sulfur,shuttling of soluble intermediate polysulfides between electrodes,and low capacitretention have hampered their commercial *** address these issues,we use a halloysitemodulated(H-M)separator in a lithium–sulfur battery to mitigate the shuttling *** H-M separator acts as a mutual Coulombic repulsion in lithium-sulfur batteries,thereby selectively permitting Lions and efficiently suppressing the transfer of undesired lithium polysulfides to the Li anode sideMoreover,the use of halloysite switches the surface of the separator from hydrophobic to hydrophilicconsequently improving the electrolyte wettability and adhesion between the separator and cathodeWhen sulfur-multi-walled carbon nanotube(S-MWCNT)composites are used as cathode active materialsa lithium–sulfur battery with an H-M separator exhibits first discharge and charge capacities of 1587 an1527 m Ah g-1,***,there is a consistent capacity retention up to 100 cyclesAccordingly,our approach demonstrates an economical and easily accessible strategy for commercialization of lithium–sulfur batteries.

关键词： Li–S batteries Halloysite Ion shielding Negative functional moiety Lithium polysulfides

Febrile infants:written guidelines to reduce non-essential hospitalizations

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World Journal of Pediatrics 2021年第5期17卷 555-556页

作者： Ji yoon Oh Soo-young Lee Department of Pediatrics Bucheon St.Mary's HospitalCollege of MedicineThe Catholic University of Korea327 Sosa-roWonmi-guBucheon 14647.Republic of Korea

Management of febrile infants,especially those younger than 3 months of age,is of clinical importance due to the relatively high risk of serious bacterial infection(SBI),such as bacterial meningitis,bacteremia,or urinary tract infection(UTI)[1].Fortunately,reliable guidelines for assessing the risk of SB I in febrile infants have been developed to help determine whether an infant should be hospitalized,undergo lumbar puncture,or be treated with antibiotics[2].However,many hospitals do not have written institutional guidelines,so clinicians often make decisions based on their own experience and knowledge[3-5].For a consistent approach to febrile infants,our hospital plans to introduce written *** this study,we estimated the expected effects of these guidelines and compared our data with the results of previous domestic studies.

关键词： febrile infection urinary

Performance evaluations on inner vs. outer decomposition first parallel join algorithms for two nested loop joins

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Journal of Central South University 2014年第10期21卷 3873-3882页

作者： Seo-young NOH Heejun yoon Il-Yeon YEO yoon-su JEONG Hyungwoo PARK National Institute of Supercomputing and Networking Korea Institute of Science and Technology Information Department of Information Communication Engineering Mokwon University

Two popular traditional join algorithms and their parallel versions are introduced. When designing join algorithms in serial computing environment, decomposing inner relation is considered as the right direction to save disk I/Os. However, two different decomposition algorithms are compared, such as inner vs. outer decomposition first algorithms for tuple-based and block-based nested loop joins, showing that the proposed approach is 20% better than general approach. Also lemmas are proved, when we have to use the outer decomposition first parallel join algorithms.

关键词： parallel join performance inner decomposition outer decomposition

Photodynamic therapy prolongs metal stent patency in patients with unresectable hilar cholangiocarcinoma

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World Journal of Gastroenterology 2012年第39期18卷 5589-5594页

作者： Tae yoon Lee young Koog Cheon Chan Sup Shim young Deok Cho Digestive Disease Center Department of Internal MedicineKonkuk University Medical CenterKonkuk University School of MedicineSeoul 143-729South Korea Institute for Digestive Research and Digestive Disease Center Soonchunhyang University College of MedicineSeoul 140-743South Korea

AIM:To evaluate the effect of photodynamic therapy (PDT) on metal stent patency in patients with unresectable hilar cholangiocarcinoma (CC). METHODS:This was a retrospective analysis of patients with hilar CC referred to our institution from December, 1999 to January, 2011. Out of 232 patients, thirty-three patients with unresectable hilar CC were treated. Eighteen patients in the PDT group were treated with uncovered metal stents after one session of PDT. Fifteen patients in the control group were treated with metal stents alone. Porfimer sodium (2 mg/kg) was administered intravenously to PDT patients. Fortyeight hours later, PDT was administered using a diffusing fiber that was advanced across the tumor by either endoscopic retrograde cholangiopancreatography or percutaneous cholangiography. After performance of PDT, uncovered metal stents were inserted to ensure adequate decompression and bile drainage. Patient survival rates and cumulative stent patency were calculated using Kaplan-Meier analysis with the log-rank test. RESULTS:The PDT and control patients were comparable with respect to age, gender, health status, pretreatment bilirubin, and hilar CC stage. When compared to control, the PDT group was associated with significantly prolonged stent patency (median 244 ± 66 and 177 ± 45 d, respectively, P = 0.002) and longer patient survival (median 356 ± 213 and 230 ± 73 d, respectively, P = 0.006). Early complication rates were similar between the groups (PDT group 17%, control group 13%) and all patients were treated conservatively. Stent malfunctions occurred in 14 PDT patients (78%) and 12 control patients (80%). Of these 26 patients, twenty-two were treated endoscopically and four were treated with external drainage. CONCLUSION:Metal stenting after one session of PDT may be safe with acceptable complication rates. The PDT group was associated with a significantly longer stent patency than the control group in patients with unresectable hilar CC.

关键词： Bile duct cancer Palliative endoscopic stent-ing Photodynamic therapy Outcome

Current Usage of Terminologies Related to Acupotomy: A Literature Research and Standardization Suggestion

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Chinese Journal of Integrative Medicine 2019年第2期25卷 147-150页

作者： Sang-Hoon yoon yoon-Sik Kim Hee-Guen Jo Chan-young Kwon Chung-Yeon Medical Institute Department of Clinical Korean Medicine Graduate SchoolKyung Hee University Yanggu Public Health Center

Objective: To investigate the current usage of terminologies related to acupotomy through systematic search and analyze the pros and cons of each for proposing a standard terminology. Methods: Seven medical journal databases were searched including PubMed, EMBASE, Cochrane Central Register of Controlled Trials, China National Knowledge Infrastructure, Oriental Medicine Advanced Searching Integrated System, KoreaMed, and Korean studies Information Service System using 10 candidate terminologies as searching terms. All studies published from their inception to July 26, 2017 were collected. Articles were included if the title stated one of the 10 candidate terminologies consistent with the definition of acupotomy. Priorly established frequency and consistency of each candidate terminology from medical databases were calculated and evaluated. Moreover, the pros and cons of each were analyzed to propose a standard terminology. Results: A total of 112 studies in English databases, 1,129 studies in Chinese database, and 44 studies in Korean databases were included. The most frequently used terminologies were needle knife(35.71%), acupotomy(48.54%) and acupotomy(90.90%) in English, Chinese and Korean database, respectively. Overall, acupotomy and needle knife were the most frequently used. Others like acupotomology, needle scalpel, miniscalpel acupuncture and miniscalpel needle were used within 10% of the total searched literature. Acupotome, stiletto needle, sword like needle, and Xiaozhendao were rarely used. Acupotomy had the advantages of high frequency and consistency but lacked representativeness. Needle knife also showed a high frequency, but the consistency was poor. Though miniscalpel acupuncture and miniscule needle were used less frequently, they had advantages of inclusiveness and clarity. Conclusions: A debate for standardization of the terminology is necessary. This preliminary research can provide a basic outline for the standardization consensus process, and

关键词： acupuncture Chinese medicine acupotomy terminology

Endoscopic retrograde cholangiopancreatography in pancreatic and biliary tract disease in Korean children

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World Journal of Gastroenterology 2010年第4期16卷 490-495页

作者： Joo young Jang Chong Hyun yoon Kyung Mo Kim Department of Pediatrics Asan Medical Center Children's HospitalUniversity of Ulsan College of MedicineSeoul 138-736South Korea Department of Pediatrics Ajou University School of MedicineSuwon 443-721South Korea Department of Pediatric Radiology Asan Medical Center Children's HospitalUniversity of Ulsan College of MedicineSeoul 138-736South Korea Department of Pediatrics Asan Medical Center Children’s HospitalUniversity of Ulsan College of MedicineSeoul 138-736South Korea

AIM:To assess the indications,findings,therapeutic procedures,safety,and complications of endoscopic retrograde cholangiopancreatography(ERCP) performed in Korean ***:The demographic characteristics,indications for ERCP,findings,therapeutic procedures,and complications of 122 pediatric patients who underwent 245 ERCPs in the Asan Medical Center between June 1994 and March 2008 were ***:The mean age of the 122 patients was 8.0 ± 4.2 *** were biliary pathology in 78(64.0%),pancreatic pathology in 43(35.2%),and chronic abdominal pain in *** indications included choledochal cysts in 40,choledocholithiasis in 24,suspected sclerosing cholangitis in 8,trauma in 2,and other conditions in *** indications includedacute pancreatitis in 7,acute recurrent pancreatitis in 11,chronic pancreatitis in 20,trauma in 3,and pancreatic mass in *** the 245 ERCPs,success rate was 98.4% and 190(77.6%) were for therapeutic purposes,including endoscopic nasal drainage(51.8%),biliary sphincterotomy(38.0%),pancreatic sphincterotomy(23.3%),stent insertion(15.1%),stone extraction(18.8%),and balloon dilatation(11.0%).Complications were postERCP pancreatitis in 16(6.5%),ileus in 23(9.4%),hemorrhage in 2(0.8%),perforation in 2(0.8%),sepsis in 1(0.4%),and impacted basket in 1(0.4%).There were no procedure-related deaths,and most complications improved under supportive ***:This study showed that there is a high incidence of choledochal cyst and diagnostic and therapeutic ERCP for the management of various biliary and pancreatic diseases was safe and effective in Korean children.

关键词： Endoscopic retrograde cholangiopancreatography Pancreatic diseases Biliary tract diseases Choledochal cyst Pancreatitis Pediatrics

Effect of PAIP1 on the metastatic potential and prognostic significance in oral squamous cell carcinoma

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International Journal of Oral Science 2022年第1期14卷 113-122页

作者： Neeti Swarup Kyoung-ok Hong Kunal Chawla Su-Jung Choi Ji-Ae Shin Kyu-young Oh Hye-Jung yoon Jae-Il Lee Sung-Dae Cho Seong-Doo Hong Department of Oral Pathology School of Dentistry and Dental Research InstituteSeoul National UniversitySeoulRepublic of Korea Department of Computer Science School of Interactive ComputingGeorgia Institute of TechnologyAtlantaGAUSA

Poly Adenylate Binding Protein Interacting protein 1(PAIP1) plays a critical role in translation initiation and is associated with the several cancer types. However, its function and clinical significance have not yet been described in oral squamous cell carcinoma(OSCC) and its associated features like lymph node metastasis(LNM). Here, we used the data available from Gene Expression Omnibus(GEO), The Cancer Genome Atlas(TCGA), and Clinical Proteomic Tumor Analysis Consortium(CPTAC) to analyze PAIP1 expression in oral cancer. The publicly available data suggests that PAIP1 mRNA and protein levels were increased in OSCC. The high PAIP1 expression was more evident in samples with advanced stage, LNM, and worse pattern of invasion. Moreover, the in vitro experiments revealed that PAIP1 knockdown attenuated colony forming, the aggressiveness of OSCC cell lines, decreasing MMP9 activity and SRC phosphorylation. Importantly, we found a correlation between PAIP1 and pSRC through the analysis of the IHC scores and CPTAC data in patient samples. Our findings suggest that PAIP1 could be an independent prognostic factor in OSCC with LNM and a suitable therapeutic target to improve OSCC patient outcomes.

关键词： squamous invasion metastasis

Heterojunction between bimetallic metal-organic framework and TiO_(2):Band-structure engineering for effective photoelectrochemical water splitting

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Nano Research 2022年第9期15卷 8502-8509页

作者： Ji Won yoon Jae-Hyeok Kim young-Moo Jo Jong-Heun Lee Department of Materials Science and Engineering Korea UniversitySeoul 02841Republic of Korea

Bimetallic Fe/Ni-based metal-organic frameworks(MOFs)with different Fe/Ni ratios were coated on TiO_(2)nanorods(NRs),and the performances of the heterojunction photoanodes in photoelectrochemical water splitting were *** bandgaps and band positions of the MOFs could be modulated by changing the ratio of the Fe and Ni *** ideal band alignment was achieved between the TiO_(2)NRs and bimetallic MOFs with an optimum ratio of[Fe]/[Ni]=0.25/0.75,which allowed efficient light absorption and charge *** coating of NH_(2)-MIL(Fe)-88 layer on the TiO_(2)NRs decreased the photocurrent density by 33%.In comparison,TiO_(2)/NH_(2)-MIL(Ni)-88 showed a modest improvement in photocurrent density(0.85 mA·cm^(−2)at 1.23 V vs.a reversible hydrogen electrode(RHE)).When bimetallic NH_(2)-MIL(Fe_(0.25)Ni_(0.75))-88 was coated on the TiO_(2)NRs,the photocurrent density reached 1.56 mA·cm^(−2),which was an efficiency enhancement of 3.2 *** mechanism underlying high photoelectrochemical performance was investigated.

关键词： band-structure engineering bimetallic metal-organic frameworks(MOFs) solar water splitting TiO_(2)nanorods NH_(2)-MIL-88

Low grade gastric mucosa associated lymphoid tissue lymphoma:Treatment strategies based on 10 year follow-up

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World Journal of Gastroenterology 2004年第2期10卷 223-226页

作者： Sang Kil Lee Yong Chan Lee Jae Bock Chung Chae yoon Chon young Myoung Moon Jin Kyung Kang In-Suh Park Chang ok Suh Woo Ik Yang Division of Gastroenterology Department of Internal MedicineYonsei University College of MedicineSeoulSouth Korea Department of Internal Medicine NHIC Ilsan HospitalIlsanSouth Korea Department of Radiation Oncology Yonsei University College of MedicineSeoulSouth Korea Department of Pathology Yonsei University College of MedicineSeoulSouth Korea

AIM:To deduce strategic guidelines of gastric mucosa associated lymphoid tissue lymphoma (MALTOMA) by evaluating the long-term outcome of patients in respect to various treatment modalities. METHODS:A total of 55 patients with MALTOMA from May 1992 to August 2002 were retrospectively reviewed. RESULTS:Complete remission was obtained in 24 (82.8%) of 29 patients treated with anti Helicobacter pylori (Hpylori) regimen *** duration to reach complete remission was 12 months (85 percentile,2-33 months).Five patients showed complete remission with radiation therapy (26-86 months).Two of them were Hpyloritreatment failure cases. CONCLUSION:Hpylorieradication is an effective primary treatment option for low grade MALTOMA and radiation therapy could be considered in patients with no evidence of Hpyloriinfection or who do not respond to Hpylorieradication therapy 12 months after successful eradication.

关键词： Adult Aged Endoscopy, Digestive System Follow-Up Studies Gastric Mucosa Helicobacter Infections Helicobacter pylori Humans Lymphoma, Mucosa-Associated Lymphoid Tissue Middle Aged Pyloric Antrum Remission Induction Retrospective Studies Stomach Ulcer