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Liquid Metal Grid Patterned Thin Film Devices Toward Absorption‑Dominant and Strain‑Tunable Electromagnetic Interference Shielding

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Nano-Micro Letters 2024年第11期16卷 541-553页

作者： Yuwen Wei Priyanuj Bhuyan Suk Jin kwon Sihyun Kim Yejin Bae Mukesh Singh Duy Thanh Tran Minjeong ha Kwang‑Un Jeong Xing Ma Byeongjin Park sungjune Park Department of Polymer‑Nano Science and Technology Department of Nano Convergence EngineeringJeonbuk National UniversityJeonju 54896Republic of Korea School of Chemical Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Composites Research Division Korea Institute of Materials ScienceChangwon 51508Republic of Korea School of Materials Science and Engineering Gwangju Institute of Science and TechnologyGwangju 61005Republic of Korea School of Materials Science and Engineering and Sauvage Laboratory for Smart MaterialsHarbin Institute of Technology(Shenzhen)ShenzhenGuangdong 518055People’s Republic of China

The demand of high-performance thin-film-shaped deformable electromagnetic interference(EMI)shielding devices is increasing for the next generation of wearable and miniaturized soft *** highly reflective conductive materials can effectively shield EMI,they prevent deformation of the devices owing to rigidity and generate secondary electromagnetic pollution ***,soft and stretchable EMI shielding thin film devices with absorption-dominant EMI shielding behavior is *** devices consist of liquid metal(LM)layer and LM grid-patterned layer separated by a thin elastomeric film,fabricated by leveraging superior adhesion of aerosol-deposited LM on *** devices demonstrate high electromagnetic shielding effectiveness(SE)(SE_(T) of up to 75 dB)with low reflectance(SER of 1.5 dB at the resonant frequency)owing to EMI absorption induced by multiple internal reflection generated in the LM grid ***,the excellent stretchability of the LM-based devices facilitates tunable EMI shielding abilities through grid space adjustment upon strain(resonant frequency shift from 81.3 to 71.3 GHz@33%strain)and is also capable of retaining shielding effectiveness even after multiple strain *** newly explored device presents an advanced paradigm for powerful EMI shielding performance for next-generation smart electronics.

关键词： Absorption-dominant electromagnetic interference shielding Liquid metals Soft and stretchable electronics Thin film devices Tunable electromagnetic interference shielding

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Gastric angiodysplasia in a hereditary hemorrhagic telangiectasia type 2 patient

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World Journal of Gastroenterology 2012年第15期18卷 1840-1844页

作者： Minsu ha Yoon Jae Kim Kwang An kwon Ki Baik hahm Mi-Jung Kim Dong Kyu Kim Young Jae Lee S Paul Oh Department of Gastroenterology Gachon University Gil Medical CenterIncheon 402-751South Korea World Class University program Lee Gil Ya Cancer and Diabetes InstituteGachon University of Medicine and ScienceIncheon 402-751South Korea Lee Gil Ya Cancer and Diabetes Institute Gachon University of Medicine and ScienceIncheon 402-751South Korea

Hereditary hemorrhagic telangiectasia(HHT)is a rare autosomal-dominantly inherited disease that occurs in approximately one in 5000 to 8000 *** diagnosis of HHT is made when a person presents three of the following four criteria:family history,recurrent nosebleeds,mucocutaneous telangiectasis,and arteriovenous malformations(AVM)in the brain,lung,liver and gastrointestinal(GI)*** epistaxis is themost common presenting symptom,AVMs affecting the lungs,brain and GI tract provoke a more serious *** mutations in endoglin,activin receptor-like kinase 1(ACVRL1;ALK1),and SMAD4,the genes involved in the transforming growth factor-βfamily signaling cascade,cause *** report here the case of a 63 year-old male patient who presented melena and GI bleeding episodes,proven to be caused by bleeding from multiple gastric *** revealed multiple angiodysplasia throughout the *** argon plasma coagulation was performed to control bleeding from a gastric *** patient has been admitted several times with episodes of hemoptysis and *** year ago,the patient was hospitalized due to right-sided weakness,which was caused by left basal ganglia hemorrhage as the part of HHT *** family history,the patient's mother and elder sister had died,due to intracranial hemorrhage,and his eldest son has been suffered from recurrent epistaxis for 20 years.A genetic study revealed a mutation in exon 3 of ALK1(c.199C>T;***67Trp)in the proband and his eldest son presenting epistaxis.

关键词： Hereditary hemorrhagic telangiectasia Angiodysplasia Intracranial hemorrhage Epistaxis Activin receptor-like kinase 1

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Complications after ileal pouch-anal anastomosis in Korean patients with ulcerative colitis

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World Journal of Gastroenterology 2014年第23期20卷 7488-7496页

作者： Seung-Bum Ryoo Heung-kwon Oh Eon Chul han Heon-Kyun ha Sang Hui Moon Eun Kyung Choe Kyu Joo Park Division of Colorectal Surgery Department of SurgerySeoul National University College of MedicineSeoul 110-744South Korea Healthcare Research Institute Seoul National University Hospital Healthcare System Gangnam CenterSeoul 135-984South Korea

AIM: To investigate the outcomes of treatments for complications after ileal pouch-anal anastomosis (IPAA) in Korean patients with ulcerative colitis.

关键词： Ulcerative colitis Ileal pouch-anal anastomosis Complications Pouch failure Pouch function

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Changes in Small Intestinal Motility and Related Hormones by Acupuncture Stimulation at Zusanli(ST 36) in Mice

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Chinese Journal of Integrative Medicine 2017年第3期23卷 215-220页

作者： Jung-Hee Jang Deuk-Joo Lee Chang-Hwan Bae Ki-Tae ha Sunoh kwon Hi-Joon Park Dae-Hyun hahm Hyejung Lee Seungtae Kim School of Korean Medicine Pusan National University Acupuncture and Meridian Science Research Center Kyung Hee University Department of Psychiatry and Behavioral Sciences Northwestern University Feinberg School of Medicine

Objective： To clarify the effects of acupuncture stimulation at Zusanli（ST 36） on the hormonal changes. Methods： Eight-week-old male C57BL/6 mice received acupuncture stimulation at acupoint ST 36 or Quchi（LI 11） once a day for 3 or 5 days in the acupuncture-stimulated groups, but not received in the normal group（n=6 in each group）. On day 3 or 5, animals were given 0.1 m L of charcoal orally with a bulbed steel needle, 30 min after the last acupuncture stimulation. Ten minutes later, mice were anesthetized, and the intestinal transit and the concentrations of vasoactive intestinal peptide（VIP）, motilin, ghrelin and gastrin in the serum were measured. Results： Compared to no acupuncture stimulation, acupuncture stimulation at ST 36 for 5 days increased the intestinal transit and down-regulated the concentration of VIP and up-regulated the concentrations of motilin, ghrelin and gastrin（P〈0.05 or 0.01）, whereas acupuncture stimulation at LI 11 did not change them significantly（P〉0.05）. Conclusion： Acupuncture stimulation at ST 36 for 5 days enhances the small intestinal motility and regulates the secretion of hormones related to small intestinal motility.

关键词： acupuncture gastrointestinal motility vasoactive intestinal peptide motilin ghrelin gastrin

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Surgical management of colonic diverticular disease:Discrepancy between right- and left-sided diseases

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World Journal of Gastroenterology 2014年第29期20卷 10115-10120页

作者： Heung-kwon Oh Eon Chul han Heon-Kyun ha Eun Kyung Choe Sang Hui Moon Seung-Bum Ryoo Seung-Yong Jeong Kyu Joo Park Division of Colorectal Surgery Department of SurgerySeoul National University College of Medicine

AIM:To compare the outcome of the surgical management of left-sided and right-sided diverticular ***:The medical records of 77 patients who were surgically treated for diverticular disease between 1999 and 2010 in a tertiary referral hospital were retrospectively *** study population was limited to cases wherein the surgical specimen was confirmed as diverticulosis by *** diverticula were classified as those arising from the cecum,ascending colon,and transverse colon,and those from the descending colon,sigmoid colon,and rectum were classified as left-sided *** assess the changing trend of occurrence of diverticulosis,data were compared with two previous studies of 51 ***:The proportion of left-sided disease cases was significantly increased compared to the results of our previous studies in 1994 and 2001,(27.5%vs48.1%,Phas increased since 2001 and is associated with worse surgical outcomes.

关键词： Colonic diverticulosis Diverticular bleeding Diverticulitis Poor surgical outcome Left-sided diverticulitis

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Virtual reality for preoperative patient education: Impact on satisfaction, usability, and burnout from the perspective of new nurses

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World Journal of Clinical Cases 2024年第28期12卷 6204-6216页

作者： Jiyoung Kim Donghyun Kim Sang-ha Oh Hyeokjae kwon College of Nursing Woosuk UniversityWanju-gun 55338South Korea Department of Medical Science Chungnam National University College of MedicineDaejeon 35015South Korea Department of Plastic and Reconstructive Surgery Chungnam National University HospitalDaejeon 35015South Korea Department of Plastic and Reconstructive Surgery Chungnam National University College of MedicineDaejeon 35015South Korea

BACKGROUND Traditional paper-based preoperative patient education is a struggle for new nurses and requires extensive *** this situation,virtual reality technology can help the new *** its potential benefits,there are studies on patient satisfaction but there is limited information on the usability of virtual reality(VR)technology for new nurses in giving preoperative education to *** To investigate the impact on satisfaction,usability,and burnout of a system using VR technology in preoperative patient *** The study involved 20 nurses from the plastic surgery ward and 80 patients admitted between April and May *** nurse taught four patients:Two using traditional verbal education and two using virtual *** System Usability Scale,After-Scenario Questionnaire,and Maslach Burnout Inventory(MBI)were employed to evaluate the impact of these education *** The VR education groups showed a statistically higher satisfaction than the traditional verbal education *** the three subscales of the MBI,emotional exhaustion and personal accomplishment improved statistically *** was also better in terms of *** This study suggests VR enhances usability and reduces burnout in nurses,but further research is needed to assess its impact on depersonalization and objective measures like stress and heart rate.

关键词： Virtual reality Preoperative care Patient education Burnout Usability Satisfaction Prospective studies

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Non-surgical treatment of diabetic foot ulcers on the dorsum of the foot with polydeoxyribonucleotide injection:Two case reports

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World Journal of Clinical Cases 2024年第20期12卷 4446-4451页

作者： Yooseok ha Jeong-Hee Kim Jiyoung Kim Hyeokjae kwon Department of Plastic and Reconstructive Surgery Chungnam National University HospitalDaejeon 35015South Korea College of Nursing Woosuk UniversityWanju-gun 55338South Korea

BACKGROUND Diabetic foot ulcers are caused by a variety of factors,including peripheral neuropathy,peripheral arterial disease,impaired wound healing mechanisms,and repetitive *** with diabetic foot ulcer on the dorsum of the foot are often treated ***,the right non-surgical therapy must be chosen if surgical choices are contraindicated or if the patient prefers conservative treatment over *** SUMMARY The purpose of this case report is to highlight the efficacy of polydeoxyribonucleotide(PDRN)injection as a non-surgical treatment option for diabetic foot ulcers on the dorsum of the foot,particularly in patients who choose against surgical *** case report presents two cases of diabetic foot ulcers located on the dorsum of the foot that were successfully treated with PDRN injection as a non-surgical *** If the patient declines surgery for diabetic ulcers with Wagner grade II or below,PDRN injection can be effective if necrotic tissue is removed and the wound bed kept clean.

关键词： Diabetic foot Wound healing Regenerative medicine Polydeoxyribonucleotides Case report

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Benzydamine inhibits osteoclast differentiation and bone resorption via down-regulation of interleukin-1β expression

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Acta Pharmaceutica Sinica B 2020年第3期10卷 462-474页

作者： han Saem Son Jiae Lee Hye In Lee Narae Kim You-Jin Jo Gong-Rak Lee Seong-Eun Hong Minjeong kwon Nam Young Kim Hyun Jin Kim Jin ha Park Soo Young Lee Woojin Jeong Department of Life Science and the Research Center for Cellular Homeostasis Ewha Womans UniversitySeoul 03760South Korea

Bone diseases such as osteoporosis and periodontitis are induced by excessive osteoclastic activity,which is closely associated with ***(BA)has been used as a cytokine-suppressive or non-steroidal anti-inflammatory drug that inhibits the production of proinflammatory cytokines or ***,its role in osteoclast differentiation and function remains ***,we explored the role of BA in regulating osteoclast differentiation and elucidated the underlying *** inhibited osteoclast differentiation and strongly suppressed interleukin-1β(IL-1β)*** inhibited osteoclast formation and bone resorption when added to bone marrowderived macrophages and differentiated osteoclasts,and the inhibitory effect was reversed by IL-1β*** reporter assay and the inhibitor study of IL-1βtranscription suggested that BA inhibited nuclear factor-κB and activator protein-1 by regulating IκB kinase,extracellular signal regulated kinase and P38,resulting in the down-regulation of IL-1β*** also promoted osteoblast ***,BA protected lipopolysaccharide-and ovariectomy-induced bone loss in mice,suggesting therapeutic potential against inflammation-induced bone diseases and postmenopausal osteoporosis.

关键词： Benzydamine Osteoclast Bone Interleukin-1β Nuclear factor-κB Activator protein-1

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Single omental metastasis of renal cell carcinoma after radical nephrectomy:A case report

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World Journal of Clinical Cases 2023年第25期11卷 5994-5999页

作者： Jae-Wook Chung Jun-Koo Kang Eun Hye Lee So Young Chun Yun-Sok ha Jun Nyung Lee Tae-Hwan Kim Tae Gyun kwon Ghil Suk Yoon Department of Urology Kyungpook National University HospitalDaegu 41404South Korea Department of Urology School of MedicineKyungpook National UniversityDaegu 41404South Korea Biomedical Research Institute Kyungpook National UniversityDaegu 41404South Korea Joint Institute for Regenerative Medicine Kyungpook National UniversityDaegu 41404South Korea Department of Pathology Kyungpook National University HospitalDaegu 41404South Korea Department of Pathology School of MedicineKyungpook National UniversityDaegu 41404South Korea

BACKGROUND Renal cell carcinoma(RCC)is the third most common malignancy in the genitourinary *** lungs,bone,lymph nodes,liver,and brain are common metastatic sites of ***,there is limited literature on single omental metastasis of *** SUMMARY We present the case of a 44-year-old man with single omental metastasis of RCC after laparoscopic radical *** diagnosis of the resected left kidney revealed pT3a clear cell RCC(Fuhrman grade III).At 6 mo postoperatively,abdominal computed tomography revealed a 12-mm enhancing nodule in the left lower *** 7 mo after initial operation,laparoscopic removal of the left omental nodule was *** pathological results indicated metastatic clear cell ***,the patient is being treated with adjuvant *** Omental metastasis of RCC owing to laparoscopic radical nephrectomy is *** should be aware of the diverse nature of RCC.

关键词： Metastasis Omentum Renal cell carcinoma Radical nephrectomy Case report

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Long-term follow up of endoscopic resection for type 3 gastric NET

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World Journal of Gastroenterology 2013年第46期19卷 8703-8708页

作者： Yong Hwan kwon Seong Woo Jeon Gwang ha Kim Jin Il Kim Il-Kwun Chung Sam Ryong Jee Heung Up Kim Geom Seog Seo Gwang Ho Baik Kee Don Choi Jeong Seop Moon Department of Internal Medicine Kyungpook National University Hospital Department of Internal Medicine Busan National University School of Medicine Department of Internal Medicine Catholic University of Korea College of Medicine Department of Internal Medicine Soonchunhyang University Department of Internal Medicine Inje University Pusan Paik Hospital Department of Internal Medicine Jeju National University School of Medicine Department of Internal Medicine Digestive Disease Research InstituteWonkwang University College of Medicine Department of Internal Medicine Hallym University College of Medicine Department of Internal Medicine University of Ulsan College of MedicineAsan Medical Center Department of Internal Medicine Inje University Seoul Paik Hospital

AIM:To clarify the short and long-term results and to prove the usefulness of endoscopic resection in type 3gastric neuroendocrine tumors(NETs).METHODS:Of the 119 type 3 gastric NETs diagnosed from January 1996 to September 2011,50 patients treated with endoscopic resection were enrolled in this *** endoscopic resection,endoscopic mucosal resection(EMR)or endoscopic submucosal dissection(ESD)was *** efficacy,complications,and follow-up results were evaluated ***:EMR was performed in 41 cases and ESD in 9 *** complete resection was performed in 40 cases(80.0%)and incomplete resection specimens were observed in 10 cases(7 vs 3 patients in the EMR vs ESD group,P=0.249).Upon analysis of the incomplete resection group,lateral or vertical margin invasion was found in six cases(14.6%)in the EMR group and in one case in the ESD group(11.1%).Lymphovascular invasions were observed in two cases(22.2%)in the ESD group and in one case(2.4%)in the EMR group(P=0.080).During the follow-up period(43.73;13-60 mo),there was no evidence of tumor recurrence in either the pathologically complete resection group or the incomplete resection *** recurrence was reported during *** addition,no mortality was reported in either the complete resection group or the incomplete resection group for the duration of the follow-up ***:Less than 2 cm sized confined submucosal layer type 3 gastric NET with no evidence of lymphovascular invasion,endoscopic treatment could be considered at initial treatment.

关键词： Stomach Neuroendocrine tumor Endo-scopic resection Treatment Carcinoid

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