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215篇 您的检索式:作者名="Lim KO"
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1Electrically driven, phosphor-free, white light-emitting diodes using gallium nitride-based double concentric truncated pyramid structures显示文摘White light-emitting diodes(LEDs)are becoming an alternative general light source,with huge energy savings compared to conventional lighting.However,white LEDs using phosphor(s)suffer from unavoidable Stokes energy converting losses,higher manufacturing cost,and reduced thermal stability.Here,we demonstrate electrically driven,phosphor-free,white LEDs based on three-dimensional gallium nitride structures with double concentric truncated hexagonal pyramids.The electroluminescence spectra are stable with varying current.The origin of the emission wavelength is studied by cathodoluminescence and high-angle annular dark field scanning transmission electron microscopy experiments.Spatial variation of the carrier injection efficiency is also investigated by a comparative analysis between spatially resolved photoluminescence and electroluminescence.Seung-Hyuk Lim Young-Ho Ko Christophe Rodriguez Su-Hyun Gong Yong-Hoon Cho 2016Light(Science & Applications)2016,5,1:6
2Case of inappropriate ADH syndrome:Hyponatremia due to polyethylene glycol bowel preparation显示文摘Colonoscopic screening has been reported to reduce deaths from colorectal cancer.Adequate bowel preparation is essential for this and safety is an important issue in choosing the methods.Polyethylene glycol(PEG)is regarded as a safe method for cleansing,especially compared with oral sodium phosphate.Here,we present a case of hyponatremia caused by the syndrome of inappropriate antidiuretic hormone(ADH)syndrome after PEG precolonoscopic cleansing resulting in generalized tonic-clonic seizures.A 62-year-old women had ingested PEG for precolonoscopic bowel cleansing.While waiting for the colonoscopy,she developed a stuporous mentality and generalized tonic-clonic seizures,which did not correlate with brain magnetic resonance imaging.Her serum sodium level was 113 mEq per liter and laboratory analyses were consistent with inappropriate ADH syndrome.Her thyroid and adrenal functions were normal.There were no malignancies,infections,respiratory disorders or central nervous disorders and she had no history of taking either diuretics or other medications,which might have caused inappropriate ADH syndrome.She was treated with 3%hypertonic saline and showed a complete neurological recovery as her sodium levels recovered.Follow-up visits showed the patient to have a normal sodium level without neurologic deficits.This case shows that inappropriate ADH syndrome can be caused by PEG preparation,which implies that physicians have to be aware of the possible side effects of this colonic cleansing approach and mindful of the possible ensuing symptoms.Sun-Hye Ko Chul-Hyun Lim Jae-Young Kim Seung Hun Kang Myong Ki Baeg Hyun Jin Oh 2014World Journal of Gastroenterology2014,20,34:5
3Human mesenchymal stem cells derived from umbilical cord and bone marrow exert immunomodulatory effects in different mechanisms显示文摘BACKGROUND Mesenchymal stem cells(MSCs)are an attractive tool to treat graft-versus-host disease because of their unique immunoregulatory properties.Although human bone marrow-derived MSCs(BM-MSCs)were the most widely used MSCs in cell therapy until recently,MSCs derived from human umbilical cords(UC-MSCs)have gained popularity as cell therapy material for their ethical and noninvasive collection.AIM To investigate the difference in mechanisms of the immunosuppressive effects of UC-MSCs and BM-MSCs.METHODS To analyze soluble factors expressed by MSCs,such as indolamine 2,3-dioxygenase,cyclooxygenase-2,prostaglandin E2 and interleukin(IL)-6,inflammatory environments in vitro were reconstituted with combinations of interferon-gamma(IFN-γ),tumor necrosis factor alpha and IL-1βor with IFN-γalone.Activated T cells were cocultured with MSCs treated with indomethacin and/or anti-IL-10.To assess the ability of MSCs to inhibit T helper 17 cells and induce regulatory T cells,induced T helper 17 cells were cocultured with MSCs treated with indomethacin or anti-IL-10.Xenogeneic graft-versus-host disease was induced in NOG mice(NOD/Shi-scid/IL-2Rγnull)and UC-MSCs or BM-MSCs were treated as cell therapies.RESULTS Our data demonstrated that BM-MSCs and UC-MSCs shared similar phenotypic characteristics and immunomodulation abilities.BM-MSCs expressed more indolamine 2,3-dioxygenase after cytokine stimulation with different combinations of IFN-γ,tumor necrosis factor alpha-αand IL-1βor IFN-γalone.UC-MSCs expressed more prostaglandin E2,IL-6,programmed death-ligand 1 and 2 in the in vitro inflammatory environment.Cyclooxygenase-2 and IL-10 were key factors in the immunomodulatory mechanisms of both MSCs.In addition,UC-MSCs inhibited more T helper 17 cells and induced more regulatory T cells than BM-MSCs.UC-MSCs and BM-MSCs exhibited similar effects on attenuating graft-versus-host disease.CONCLUSION UC-MSCs and BM-MSCs exert similar immunosuppressive effects with different mechanisms involved.These findings suggest that UC-MSCs have distinct immunoregulatory functions and may substitute BM-MBSCs in the field of cell therapy.Yunejin Song Jung-Yeon Lim Taekyu Lim Keon-Il Im Nayoun Kim Young-Sun Nam Young-Woo Jeon Jong Chul Shin Hyun Sun Ko In Yang Park Seok-Goo Cho 2020World Journal of Stem Cells2020,12,9:4
4Broadband omnidirectional light detection in flexible and hierarchical ZnO/Si heterojunction photodiodes显示文摘灵活光电探测器的开发包括灵活图象传感器,生物医学的成像,和聪明的、便携系统为未来 optoelectronic 应用程序收到了大注意。以前,全向的光电探测器由多重光电探测器上的一个半球的 microlens 集会的集成仅仅是可完成的。此处,组织蜂房的 Si ( H-Si )膜上的 ZnO nanowires ( NW )的一个层次光电二极管图案被表明展出优秀全向的轻吸收的能力并且因此在女人上维持高光电流光谱为宽事件角度的范围( 365~1,100 nm )( 0io 是超过 6.00~10 个病人和 35 age-/gender-matched 控制吗(吝啬的 s ??Seongdong Lim Doo-Seung Um Minjeong Ha Qianpeng Zhang Youngsu Lee Yuanjing Lin Zhiyong Fan Hyunhyub Ko 2017Nano Research2017,10,1:2
5Interplay between ABA and GA Modulates the Timing of Asymmetric Cell Divisions in the Arabidopsis Root Ground Tissue显示文摘在多细胞的有机体,控制预定和不对称的细胞部门(ACD ) 的程度为正确 patterning 是关键的。在在 Arabidopsis thaliana 的 embryonic 以后根开发期间,地面织物(GT ) 成熟包含内皮的另外的 ACD,它产生二不同纸巾:内皮(内部) 并且中间的外皮(外部) 。这被报导了 abscisic 酸(骆驼毛的织物) 和赤霉素(GA ) 小径涉及中间的外皮(MC ) 形成。然而,在 GT 成熟期间位于在骆驼毛的织物和 GA 之间的相互作用下面的分子的机制仍然保持大部分未知。通过 transcriptome 分析,我们识别了一以前 uncharacterized C 2 H 2-type 锌手指基因,其表情被 GA 和骆驼毛的织物调整,因此命名的 GAZ (GA- 和骆驼毛的织物应答的锌手指) 。幼苗宫外地 overexpressing GAZ (GAZ 公牛) 在 MC 形成期间对骆驼毛的织物和 GA 敏感,而 GAZ-SRDX 和 RNAi 幼苗显示了相反的显型。另外,我们的结果显示 GAZ 涉及骆驼毛的织物和 GA 动态平衡的 transcriptional 规定。与那件骆驼毛的织物和 GA 协调控制预定 MC 形成的以前的研究一致,我们也证实了在骆驼毛的织物和 GA 之间的唯一的相互影响并且识别了在 Arabidopsis 根的 GT 成熟期间衔接二条荷尔蒙小径的因素和规章的网络。Shin Ae Lee Sejeong Jang Eun Kyung Yoon Jung-Ok Heo Kwang Suk Chang Ji Won Choi Souvik Dhar Gyuree Kim Jeong-Eun Choe Jae Bok Heo Chian Kwon Jae-Heung Ko Yong-Sic Hwang Jun Lim 2016Molecular Plant2016,9,6:2
6Internet based teleoperation of a mobile robot with force - reflection显示文摘Lim JaeNam Ko JaePyung Lee JangMyung 2003Proceedings of 2003 IEEE Conference on2003,1,6:1
7Synthesis of AA-based super absorbent interpenetrated with sodium PVA sulfate 显示文摘Doo-Won Lim Kee-Jong Yoon Sohk-Won Ko 2000J Applpolym Sci2000,78,:1
8Effect of Mg17Al12 precipitate on Corrosion behavior of AZ91D magnesium alloy 显示文摘KO Y J YIM C D LIM J D SHIN K S 2003Mater Science Forum2003,,:1
9Various musculoskeletal manifestations of chronic renal insufficiency显示文摘Lim CY Ong KO 0,,07:1
10Environmentally friendly preparation of pec- fins from agricultural byproducts and their strnctural/rheological char- acterization 显示文摘Min B Lim J Ko S 2011Bioresource Technology2011,102,4:1
11Oncological safety of skin sparing mastectomy followed by immediate reconstruction for locally advanced breast cancer显示文摘Lim W Ko BS Kim HI 2010J Surg Oncol2010,102,:1
12Diagnosis of pelvic congestion syndrome using transabdominal and transvaginal sonography 显示文摘Park S J Lim JW Ko YT 2004AJR Am J Roentgenol2004,182,3:1
13Preoperative Portal Vein Embolization and Surgical Resection in Patients with Hepatocellular Carcinoma and Small Future Liver Remnant Volume: Comparison with Transarterial Chemoembolization显示文摘Dong Dae Seo Han Chu Lee Myoung Kuk Jang Hyun Ju Min Kang Mo Kim Young Suk Lim Young-Hwa Chung Yung Sang Lee Dong Jin Suh Gi-Young Ko Young-Joo Lee Sung-Gyu Lee 2007Annals of Surgical Oncology2007,,12:1
14Production of macrophage inflammatory protein (MIP) - lalpha and MIP - 1 beta by human polymorphonuclear neutrophils stimulated with porphyromonas endodontalis lipopolysaccharide 显示文摘Ko H J Lim SS 2002J Endod2002,28,11:1
15Preparation and Characterization of Composites Based on Polylactic Acid and Beeswax with Improved Water Vapor Barrier Properties显示文摘Jung Hoon Lim Jeong Ae Kim Jung A Ko Hyun Jin Park 2015Journal of Food Science2015,,:1
16MEDiSN: medical emergency detection in sensor networks显示文摘Ko J G Lim J H Chert Y 2010ACM Transactions on Embedded Con-oputing Systems (TECS)2010,10,1:1
17Compromised white matter tract integrity in schizophrenia inferred from diffusion tensor imaging显示文摘Lim KO Hedehus M Moseley M 1999Arch Gen Psychiatry1999,56,4:1
18Current - limiting and re- covery characteristics of a flux - lock type SFCL with two adjustable operational currents 显示文摘Ko S C Han T H Lim S H 2014Journal of the Korean Physical Society2014,65,2:1
1936kDa Glycoprotein isolated from Rhus verniciflua Stokes fruit has a protective activity to glucose/glucose oxidase-induced apoptosis in NIH/3T3 cells显示文摘Ko J H Lee S J Lim K T 2005Toxicol in Vitro2005,19,3:1
20A manufacturing model of an end mill using a five-axis CNC grinding machine 显示文摘Trung Thanh Pham Sung Lim Ko 2010Advance Manufacture Technology2010,48,:1
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