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| 1 | Gastric cancer patients at high-risk of having synchronous cancer显示文摘瞄准:识别病人与一在胃的癌症病人之中有同步癌症高风险。方法:我们回顾地在国家癌症中心分析了未来的胃的癌症数据库,从 2000 年 12 月的朝鲜到 2004 年 12 月。有没有同步癌症的病人的同步癌症和那些的病人的 clinicopathological 特征被比较。Multivariate 分析被执行在胃的癌症病人为同步癌症的存在识别风险因素。结果:在数据库登记的 3291 个胃的癌症病人(3.4%) 中的 111 个有同步癌症。在这 111 个病人之中, 109 有单个同步癌症, 2 个病人有二同步癌症。同步癌症的最普通的形式是颜色表面的癌症(42 个病人, 37.2%) 由肺癌症列在后面(21 个病人, 18.6%) 。Multivariate 分析表明有区分的早胃的癌症的老病人有同步癌症的更高的可能性。结论:在胃的癌症病人的同步癌症不是很少发生的。医生应该试着在胃的癌症病人发现同步癌症,在特别与区分的早胃的癌症老。 | Jun Ho Lee Ja Seong Bae Keun Won Ryu Jong Seok Lee Sook Ryun Park Chan Gyoo Kim Myoung Cheorl Kook Il Ju Choi Young Woo Kim Jae-Gahb Park Jae-Moon Bae | 2006 | World Journal of Gastroenterology2006,12,16: | 15 |
| 2 | Endoscopic features suggesting gastric cancer in biopsy-proven gastric adenoma with high-grade neoplasia显示文摘AIM:To elucidate the endoscopic features that predict the cancer following endoscopic submucosal dissection(ESD)in patients with high-grade neoplasia(HGN).METHODS:We retrospectively analyzed the medical records of patients who underwent ESD of gastric neoplasms from January 2007 to September 2010.ESD was performed in 555 cases involving 550 patients.A total of 112 lesions from 110 consecutive patients were initially diagnosed as HGN without cancer by forceps biopsy,and later underwent ESD.We classified lesions into two groups according to histologic discrepancies between the biopsy and ESD diagnosis.Gastric adenoma in the final diagnosis by ESD specimens were defined as adenoma group.Lesions with coexisting cancer after ESD were defined as cancer group.RESULTS:The mean age was 65.3 years,and 81 patients were male.There was no significant difference in the age or gender distribution between the adenoma(n=52)and cancer(n=60)groups.Thirty-six of these lesions(32.1%)showed histologic concordance between the forceps biopsy and ESD specimens,16(14.3%)showed a downgraded histology(low-grade neoplasia),and 60(53.6%)showed an upgraded histology(cancer).A red color change of the mucosal surface on endoscopy was found in 27/52(51.9%)of cases in the adenoma group and in 46/60(76.7%)of cases in the cancer group(P=0.006).Ulceration of the mucosal surface on endoscopy was found in 5(9.6%)of 52 lesions in the adenoma group and in 17(28.3%)of 60 lesions in the cancer group(P=0.013).In the multivariate analysis,a reddish surface color change and mucosal ulceration were significant predictive factors correlated with cancer after ESD of the HGN by forceps biopsy.CONCLUSION:HGN with a red color change or mucosal ulceration correlated with the presence of gastric cancer.These finding may help to guide the diagnosis and treatment. | Jung Ho Kim Yoon Jae Kim Jungsuk An Jong Joon Lee Jae Hee Cho Kyoung Oh Kim Jun-Won Chung Kwang An Kwon Dong Kyun Park Ju Hyun Kim | 2014 | World Journal of Gastroenterology2014,20,34: | 10 |
| 3 | Routine screening for classical azoospermia factor deletions of the Y chromosome in azoospermic patients with Klinefelter syndrome显示文摘瞄准:评估古典精子缺乏的出现在 azoospermic 的平淡的考试与 Klinefelter 症候群(KS ) 使遭到的 Y 染色体的因素(AZF ) 删除。方法:血样品与 KS 从 95 个 azoospermic 题目被收集(有的 91 个题目一 47, XXY karyotype 和四个题目有马赛克 47, XXY/46, XY karyotype ) 并且 93 个肥沃的人的一个控制组。睾丸激素,滤泡刺激荷尔蒙(FSH ) 和 luteinizing 荷尔蒙(LH ) 的价值被测量。决定 Y 染色体的存在微删除,五份标注顺序的地点教材的聚合酶链反应(PCR )(sY84, sY129, sY134, sY254, sY255 ) 跨越 AZF 区域,在孤立的 genomic DNA 上被执行。结果:微删除没与 KS 在任何 95 个 azoospermic 题目被发现的 Y 染色体。用 PCR 的类似的条件,另外,没有微删除在评估的 93 个肥沃的人被观察。在 KS 题目的 FSH 的水平在肥沃的人比那高( 38.2 ± 10.3 mIU/mL 对 5.4 ± 2.9 mIU/mL , P <
0.001 )并且睾丸激素水平在控制组是比那低的( 1.7 ± 0.3 ng/mL 对 4.3 ± 1.3 ng/mL , P <
0.001 )。结论:我们出版文学的数据和评论建议古典 AZF 删除可能不在预先安排起一个作用为 azoospermic KS 题目与的显型的基因背景一 47, XXY karyotype。另外,为古典 AZF 删除的平淡的屏蔽可能没为这些题目被要求。包括部分 AZFc 删除的进一步的研究(例如 gr/gr 或 b2/b3 ) 是必要的建立在 KS 位于严重精子发生缺陷下面的另外的机制。 | Jin Ho Choe Jong Woo Kim Joong Shik Lee Ju Tae Seo | 2007 | Asian Journal of Andrology2007,9,6: | 9 |
| 4 | Intermittent fasting promotes adipose thermogenesis and metabolic homeostasis via VEGF-mediated alternative activation of macrophage显示文摘 | Kyoung-Han Kim Yun Hye Kim Joe Eun Son Ju Hee Lee Sarah Kim Min Seon Choe Joon Ho Moon Jian Zhong Kiya Fu Florine Lenglin Jeong-Ah Yoo Philip J Bilan Amira Klip Andras Nagy Jae-Ryong Kim Jin Gyoon Park Samer MI Hussein Kyung-Oh Doh Chi-chung Hui Hoon-Ki Sung | 2017 | Cell Research2017,27,11: | 9 |
| 5 | Biopathologic features and clinical significance of micrometatasis in the lymph node of early gastric cancer显示文摘AIM: To evaluate the biopathologic features and clinical significance of nodal micrometastasis(MI) in early gastric cancer(EGC).METHODS: Among 1022 EGC patients who underwent gastrectomy with lymphadenectomy of D1 + β or more from March 2001 to December 2005 at the Korean National Cancer Center, available nodal metastasis was found in 90 p T1N1 patients. Nodal metastasis was confirmed by immunohistochemistry(IHC) with cytokeratin and patients were classified into MI and macrometastasis(MA) groups based on the main tumor burden according to the 6th International Union Against Cancer/American Joint Committee on Cancer staging system; the main tumor burden with a diameter of greater than 0.2 mm but no greater than 2 mm as MI, and greater than 2 mm as MA of the representative metastatic node. Proliferative and apoptotic activities of the primary tumor and the nodal metastasis were measured by IHC with Ki-67 and terminal deoxynucleotidyl transferase d UTP nick end labeling, respectively. Biopathologic and clinical features of the patients were analyzed and compared between MI and MA groups. Patients with recurrence were compared with those without recurrence to identify risk factors for recurrence.RESULTS: Thirty-seven patients showed MI and the other 53 patients revealed MA in the lymph node; the incidence of patients with MI and MA was 41.1% and 58.9%. The main tumor burden was 0.9 and 4.6 mm in the representative metastatic node, respectively. Japanese N2 stations were more frequently involved in MA group(20.9%) than in MI group(10.3%) butthe difference was not statistically different(P = 0.338). Proliferative and apoptotic activities of MI were decreased than those of MA(26.7% vs 40.5%, P = 0.004 and 1.0% vs 3.0%, P < 0.001, respectively). However, nodal MI in the current study showed a relatively high proliferative activity and an equivalent apoptotic activity compared to other cancers in the previously published studies. Recurrence was observed in 6 patients during the mean follow up period of 87.6 ± 26.2 mo. The recurrence was significantly associated with the presence of MA(P = 0.041) and lymphovascular invasion of the primary tumor(P = 0.032).CONCLUSION: Lymphadenectomy of D1 + β or more might be necessary in patients with MI in sentinel node to prevent recurrence by clearing MI involving Japanese N2 station. | Min Jung Jo Ji Yeon Park Joon Seon Song Myeong-Cherl Kook Keun Won Ryu Soo-Jeong Cho Jun Ho Lee Byung-Ho Nam Eun Kyung Hong Il Ju Choi Young-Woo Kim | 2015 | World Journal of Gastroenterology2015,21,2: | 9 |
| 6 | Effects of Bacillus subtilis CSL2 on the composition and functional diversity of the faecal microbiota of broiler chickens challenged with Salmonella Gallinarum显示文摘Background: The chicken gastrointestinal tract contains a diverse microbiota whose composition and structure play important roles in gut functionality. In this study, microbial shifts resulting from feed supplementation with Bacillus subtilis CSL2 were evaluated in broilers challenged and unchallenged with Salmonella Gallinarum. To analyse bacterial community composition and functionality, 454 GS-FLX pyrosequencing of 16 S r RNA gene amplicons was performed.Results: The Quantitative Insights into Microbial Ecology(QIIME) pipeline was used to analyse changes in the faecal microbiota over a 24-h period. A total of 718,204 sequences from broiler chickens were recorded and analysed. At the phylum level, Firmicutes, Bacteroidetes, and Proteobacteria were the predominant bacterial taxa. In Salmonellainfected chickens(SC), Bacteroidetes were more highly abundant compared to control(NC) and Bacillus-treated(BT)chickens. At the genus level, in the NC and BT groups, Lactobacil us was present at high abundance, and the abundance of Turicibacter, unclassified Enterobacteriaceae, and Bacteroides increased in SC broilers. Furthermore, taxon-independent analysis showed that the SC and BT groups were compositional y distinct at the end of the 24-h period. Further analysis of functional properties showed that B. subtilis CSL2 administration increased gut-associated energy supply mechanisms(i.e. carbohydrate transport and metabolism) to maintain a stable microbiota and protect gut integrity.Conclusions: This study demonstrated that S. Gallinarum infection and B. subtilis CSL2 supplementation in the diet of broiler chickens influenced the diversity, composition, and functional diversity of the faecal microbiota. Moreover, the findings offer significant insights to understand potential mechanisms of Salmonel a infection and the mode of action of probiotics in broiler chickens. | Ju Kyoung Oh Edward Alain B.Pajarillo Jong Pyo Chae In Ho Kim Dong Soo Yang Dae-Kyung Kang | 2017 | Journal of Animal Science and Biotechnology2017,8,2: | 6 |
| 7 | Involvement of lymphocytes in dextran sulfate sodium-induced experimental colitis显示文摘瞄准:在葡聚糖硫酸盐的发展调查淋巴细胞的角色导致钠的大肠炎。方法:用葡聚糖硫酸盐钠(决策支持系统)的各种各样的剂量,我们在野类型的 B6 控制和 Rag-1 大美人( H-2b haplotype )导致了大肠炎鼠标,并且评估了大肠炎以征兆并且 histologic 参数例如重量损失,幸存,腹泻的严厉,冒号长度和组织学的变化的缺乏。征兆的参数每天被检查,组织学的变化被获得。结果:尽管在 Rag-1 猛烈老鼠的大肠炎的开发与决策支持系统的高剂量(5%) 对待比得上在 B6 控制老鼠,大肠炎前进在 Rag-1 猛烈老鼠与相比是更可容忍的比在与低剂量(1.5%) 对待的 B6 老鼠决策支持系统。征兆的参数以及组织病理学说的变化在 Rag-1 猛烈鼠标被改进。结论:这些结果显示淋巴细胞的存在在决策支持系统刺激的低剂量贡献大肠炎前进。淋巴细胞可以在导致决策支持系统的大肠炎作为一个加重的因素起作用。 | Tae Woon Kim Jae Nam Seo Young Ho Suh Hyo Jin Park Ju Hyun Kim Ji Young Kim Kwon Ik Oh | 2006 | World Journal of Gastroenterology2006,12,2: | 6 |
| 8 | Dexamethasone inhibits hypoxia-induced epithelial-mesenchymal transition in colon cancer显示文摘AIM:To elucidate the effects of dexamethasone on hypoxia-induced epithelial-to-mesenchymal transition(EMT) in colon cancer.METHODS:Human colon cancer HCT116 and HT29 cells were exposed to normoxic(21%) and hypoxic(1%) conditions. First,the effect of dexamethasone on cell viability was examined by MTT cell proliferation assay. In order to measure the expression levels of EMT markers(Snail,Slug,Twist,E-cadherin,and integrin αVβ6) and hypoxia-related genes [Hypoxia-inducible factor-1α(HIF-1α) and vascular endothelial growth factor(VEGF)] by dexamethasone,quantitative real-time polymerase chain reaction and western blot analysis were performed. Furthermore,the morphological changes of colon cancer cells and the expression pattern of E-cadherin by dexamethasone were detected through immunocytochemistry. Finally,the effects of dexamethasone on the invasiveness and migration of colon cancer cells were elucidated using matrigel invasion,migration,and wound healing migration assays.RESULTS:Under hypoxia,dexamethasone treatment inhibited HIF-1α protein level and its downstream gene,VEGF m RNA level in the colon cancer cell lines,HCT116 and HT29. In addition,the presence of dexamethasone down-regulated the m RNA levels of hypoxia-induced Snail,Slug,and Twist,all transcriptional factors of EMT,as well as hypoxia-induced integrin αVβ6 protein level,a well-known EMT marker for colon cancer cells. Furthermore,reduced E-cadherin in hypoxic condition was found to be recoverable by treating with dexamethasone in both colon cancer cell lines. Similarly,under hypoxic conditions,dexamethasone restored the growth pattern and morphological phenotype reminiscent of colon cancer cells grown under normoxic conditions; dexamethasone blocked the migration and invasion of both colorectal cancer cell lines in hypoxia.CONCLUSION:Our study suggested that dexamethasone has inhibitory effects on cell migration and invasion by suppressing EMT of colon cancer cell lines in hypoxic condition. | Jung Ho Kim You-Jin Hwang Sang Hoon Han Young Eun Lee Saerom Kim Yoon Jae Kim Jae Hee Cho Kwang An Kwon Ju Hyun Kim Se-Hee Kim | 2015 | World Journal of Gastroenterology2015,21,34: | 5 |
| 9 | Association between hepatocellular carcinoma and tumor necrosis factor alpha polymorphisms in South Korea显示文摘AIM: To investigate associations between the tumor necrosis factor alpha(TNF-α)-1031 T>C,-863 C>A,-857 C>T,-308 G>A,and-238 G>A polymorphisms and HCC in Korea.METHODS: Hepatocellular carcinoma(HCC) cases were diagnosed at CHA Bundang Medical Center from June 1996 to August 2008. The association between TNF-α polymorphisms and HCC was analyzed in 157HCC patients and 201 controls using a polymerase chain reaction-restriction fragment length polymorphism assay. We investigated five TNF-α polymorphisms,which are TNF-α-1031 T>C,-863 C>A,-857 C>T,-308 G>A,and-238 G>A. The TNF-α genotype frequencies,genotype combinations and haplotypes were analyzed to disclose the association with HCC.RESULTS: None of the TNF-α polymorphisms was significantly associated with HCC. However,nine genotype combinations had associations with increased likelihood of HCC. Among them,TNF-α-1031/-857/-238 TT/CC/GA(AOR = 18.849,95%CI: 2.203-161.246,P = 0.007),TNF-α-1031/-308/-238 TT/GG/GA(AOR = 26.956,95%CI: 3.071-236.584,P = 0.003),and TNF-α-1031/-238 TT/GA(AOR = 21.576,95%CI: 2.581-180.394,P = 0.005) showed marked association with HCC. There were five haplotypes of TNF-α polymorphisms which were significantly associated with HCC. They are TNF-α-1031/-863/-857/-308/-238 T-C-C-G-A(OR = 25.824,95%CI: 1.491-447.223,P = 0.0005),TNF-α-1031/-857/-308/-238 T-C-G-A(OR = 12.059,95%CI: 2.747-52.950,P < 0.0001),TNF-α-1031/-857/-238 T-C-A(OR = 10.696,95%CI: 2.428-47.110,P = 0.0001),TNF-α-1031/-308/-238 T-G-A(OR = 7.556,95%CI: 2.173-26.280,P = 0.0002) and TNF-α-1031/-238 T-A(OR = 10.865,95%CI: 2.473-47.740,P = 0.0001). Moreover,HCC Okuda stage Ⅲ cases with the TNF-α-1031 CC genotype had better survival than those with the TT genotype(AOR = 5.795,95%CI: 1.145-29.323). CONCLUSION: Although no single TNF-α polymorphism is associated with HCC in this study,some TNF-α genotype combinations and haplotypes are associated with HCC. In addition,HCC Okuda stage Ⅲ cases with the TNF-α-1031 TT genotype may have a better prognosis than those with the CC genotype. | Suk Pyo Shin Nam Keun Kim Ju Hwan Kim Ju Ho Lee Jung Oh Kim Sung Hwan Cho Hana Park Mi Na Kim Kyu Sung Rim Seong Gyu Hwang | 2015 | World Journal of Gastroenterology2015,21,46: | 5 |
| 10 | Surgical failure after colonic stenting as a bridge to surgery显示文摘AIM: To identify risk factors for surgical failure after colonic stenting as a bridge to surgery in left-sided malignant colonic obstruction.METHODS: The medical records of patients who underwent stent insertion for malignant colonic obstruction between February 2004 and August 2012 were retrospectively reviewed. Patients with malignant colonic obstruction had overt clinical symptoms and signs of obstruction. Malignant colonic obstruction was diagnosed by computed tomography and colonoscopy. A total of 181 patients underwent stent insertion during the study period; of these, 68 consecutive patientswere included in our study when they had undergone stent placement as a bridge to surgery in acute leftsided malignant colonic obstruction due to primary colon cancer.RESULTS: Out of 68 patients, forty-eight(70.6%) were male, and the mean age was 64.9(range, 38-89) years. The technical and clinical success rates were 97.1%(66/68) and 88.2%(60/68), respectively. Overall, 85.3%(58/68) of patients underwent primary tumor resection and primary anastomosis. Surgically successful preoperative colonic stenting was achieved in 77.9%(53/68). The mean duration, defined as the time between the SEMS attempt and surgery, was 11.3 d(range, 0-26 d). The mean hospital stay after surgery was 12.5 d(range, 6-55 d). On multivariate analysis, the use of multiple self-expanding metal stents(OR = 28.872; 95%CI: 1.939-429.956, P = 0.015) was a significant independent risk factor for surgical failure of preoperative stenting as a bridge to surgery. Morbidity and mortality rates in surgery after stent insertion were 4.4%(3/68) and 1.5%(1/68), respectively.CONCLUSION: The use of multiple self-expanding metal stents appears to be a risk factor for surgical failure. | Jung Ho Kim Kwang An Kwon Jong Joon Lee Won-Suk Lee Jeong-Heum Baek Yoon Jae Kim Jun-Won Chung Kyoung Oh Kim Dong Kyun Park Ju Hyun Kim | 2014 | World Journal of Gastroenterology2014,20,33: | 5 |
| 11 | Improved Quality of Life Outcomes After Laparoscopy-Assisted Distal Gastrectomy for Early Gastric Cancer: Results of a Prospective Randomized Clinical Trial显示文摘 | Young-Woo Kim Yong Hae Baik Young Ho Yun Byung Ho Nam Dae Hyun Kim Il Ju Choi Jae-Moon Bae | 2008 | Annals of Surgery2008,,5: | 5 |
| 12 | Efficacy of Pegylated Interferon Monotherapy versus Sequential Therapy of Entecavir and Pegylated Interferon in Hepatitis B e Antigen-Positive Hepatitis B Patients: A Randomized, Multicenter, Phase IIIb Open-Label Study (POTENT Study)显示文摘 | Dae Won Jun Sang Bong Ahn Tae Yeob Kim Joo Hyun Sohn Sang Gyune Kim Se Whan Lee Byung Ho Kim Dong Joon Kim Ja Kyung Kim Hyoung Su Kim Seong Gyu Hwang Won Choong Choi Won Young Tak Heon Ju Lee Ki Tae Yoon Byung Cheol Yun Sung Wook Lee Soon Koo Baik Seung Ha Park Ji Won Park Sol Ji Park Ji Sung Lee | 2018 | Chinese Medical Journal2018,,14: | 5 |
| 13 | Computed tomography findings for predicting severe acute hepatitis with prolonged cholestasis显示文摘AIM: To evaluate the significance of computed tomography (CT) findings in relation to liver chemistry and the clinical course of acute hepatitis. METHODS: Four hundred and twelve patients with acute hepatitis who underwent enhanced CT scanning were enrolled retrospectively. Imaging findings were analyzed for the following variables: gallbladder wall thickness (GWT), arterial heterogeneity, periportal tracking, number and maximum size of lymph nodes, presence of ascites, and size of spleen. The serum levels of alanine aminotransferase, alkaline phosphatase, bilirubin, albumin, and prothrombin time were measured on the day of admission and CT scan, and laboratory data were evaluated every 2-4 d for all subjects during hospitalization. RESULTS: The mean age of patients was 34.4 years, and the most common cause of hepatitis was hepatitis A virus (77.4%). The mean GWT was 5.2 mm. The number of patients who had findings of arterial heterogeneity, periportal tracking, lymph node enlargement > 7 mm, and ascites was 294 (80.1%), 348 (84.7%), 346 (84.5%), and 56 (13.6%), respectively. On multivariate logistic regression, male gender [odds ratio (OR) = 2.569, 95%CI: 1.477-4.469, P = 0.001], toxic hepatitis (OR = 3.531, 95%CI: 1.444-8.635, P = 0.006), level of albumin (OR = 2.154, 95%CI: 1.279-3.629, P = 0.004), and GWT (OR = 1.061, 95%CI: 1.015-1.110, P = 0.009) were independent predictive factors for severe hepatitis. The level of bilirubin (OR = 1.628, 95%CI: 1.331-1.991, P < 0.001) and GWT (OR = 1.172, 95%CI: 1.024-1.342,P = 0.021) were independent factors for prolonged cholestasis in multivariate analysis. CONCLUSION: In patients with acute hepatitis, GWT on CT scan was an independent predictor of severe hepatitis and prolonged cholestasis. | Sang Jung Park Jin Dong Kim Yeon Seok Seo Beom Jin Park Min Ju Kim Soon Ho Um Chang Ha Kim Hyung Joon Yim Soon Koo Baik Jin Yong Jung Bora Keum Yoon Tae Jeen Hong Sik Lee Hoon Jai Chun Chang Duck Kim Ho Sang Ryu | 2013 | World Journal of Gastroenterology2013,19,16: | 4 |
| 14 | Endoscopic stenting for recurrence-related colorectal anastomotic site obstruction:Preliminary experience显示文摘AIM:To evaluate the efficacy of stents in treating patients with anastomotic site obstructions due to cancer recurrence following colorectal surgery.METHODS:The medical records of patients who underwent endoscopic self-expanding metal stents(SEMS)insertion for colorectal obstructions between February2004 and January 2014 were retrospectively reviewed.During the study period,a total of 218 patients underwent endoscopic stenting for colorectal obstructions.We identified and examined the patients who underwent endoscopic stenting for obstructions caused by cancer recurrence at the anastomotic site following colorectal surgeries for primary colorectal cancer.RESULTS:Five consecutive patients[mean age,56.4years(range:39-82 years);4 women,1 man]underwent endoscopic stenting for obstructions caused by cancer recurrence at the anastomotic site following colorectal surgeries for primary colorectal cancer.Technical and clinical success was achieved in all 5 patients,without any early complications.During follow-up,3patients did not need further intervention,prior to their death,after the first stent insertion;thus,the overall success rate was 3/5(60%).Perforations occurred in 2patients who required a second SEMS insertion due to re-obstruction;none of the patients experienced stent migration.CONCLUSION:SEMS placement is a promising treatment option for patients who develop obstructions of their colonic anastomosis sites due to cancer recurrence. | Jung Ho Kim Jong Joon Lee Jae Hee Cho Kyoung Oh Kim Jun-Won Chung Yoon Jae Kim Kwang An Kwon Dong Kyun Park Ju Hyun Kim | 2014 | World Journal of Gastroenterology2014,20,38: | 4 |
| 15 | Monolayer Graphitic Carbon Nitride as Metal-Free Catalyst with Enhanced Performance in Photo- and Electro-Catalysis显示文摘The exfoliation of bulk graphitic carbon nitride(g-C_(3)N_(4))into monolayer has been intensively studied to induce maximum sur-face area for fundamental studies,but ended in failure to realize chemi-cally and physically well-defined monolayer of g-C_(3)N_(4)mostly due to the difficulty in reducing the layer thickness down to an atomic level.It has,therefore,remained as a challenging issue in two-dimensional(2D)chemistry and physics communities.In this study,an“atomic monolayer of g-C_(3)N_(4)with perfect two-dimensional limit”was successfully prepared by the chemically well-defined two-step routes.The atomically resolved monolayer of g-C_(3)N_(4)was also confirmed by spectroscopic and micro-scopic analyses.In addition,the experimental Cs-HRTEM image was collected,for the first time,which was in excellent agreement with the theoretically simulated;the evidence of monolayer of g-C_(3)N_(4)in the perfect 2D limit becomes now clear from the HRTEM image of orderly hexagonal symmetry with a cavity formed by encirclement of three adjacent heptazine units.Compared to bulk g-C_(3)N_(4),the present g-C_(3)N_(4)monolayer showed significantly higher photocatalytic gen-eration of H2O2 and H2,and electrocatalytic oxygen reduction reaction.In addition,its photocatalytic efficiency for H2O2 production was found to be the best for any known g-C_(3)N_(4)nanomaterials,underscoring the remarkable advantage of monolayer formation in optimizing the catalyst performance of g-C_(3)N_(4). | Huiyan Piao Goeun Choi Xiaoyan Jin Seong‑Ju Hwang Young Jae Song Sung‑Pyo Cho Jin‑Ho Choy | 2022 | Nano-Micro Letters2022,14,3: | 3 |
| 16 | The next detectors for gravitational wave astronomy显示文摘This paper focuses on the next detectors for gravitational wave astronomy which will be required after the current ground based detectors have completed their initial observations, and probably achieved the first direct detection of gravitational waves. The next detectors will need to have greater sensitivity, while also enabling the world array of detectors to have improved angular resolution to allow localisation of signal sources. Sect. 1 of this paper begins by reviewing proposals for the next ground based detectors,and presents an analysis of the sensitivity of an 8 km armlength detector, which is proposed as a safe and cost-effective means to attain a 4-fold improvement in sensitivity. The scientific benefits of creating a pair of such detectors in China and Australia is emphasised. Sect. 2 of this paper discusses the high performance suspension systems for test masses that will be an essential component for future detectors, while sect. 3 discusses solutions to the problem of Newtonian noise which arise from fluctuations in gravity gradient forces acting on test masses. Such gravitational perturbations cannot be shielded, and set limits to low frequency sensitivity unless measured and suppressed. Sects. 4 and 5 address critical operational technologies that will be ongoing issues in future detectors. Sect. 4 addresses the design of thermal compensation systems needed in all high optical power interferometers operating at room temperature. Parametric instability control is addressed in sect. 5. Only recently proven to occur in Advanced LIGO, parametric instability phenomenon brings both risks and opportunities for future detectors. The path to future enhancements of detectors will come from quantum measurement technologies. Sect. 6 focuses on the use of optomechanical devices for obtaining enhanced sensitivity, while sect. 7 reviews a range of quantum measurement options. | BLAIR David JU Li ZHAO ChunNong WEN LinQing MIAO HaiXing CAI RongGen GAO JiangRui LIN XueChun LIU Dong WU Ling-An ZHU ZongHong HAMMOND Giles PAIK Ho Jung FAFONE Viviana ROCCHI Alessio BLAIR Carl MA YiQiu QIN JiaYi PAGE Michael | 2015 | Science China(Physics,Mechanics & Astronomy)2015,58,12: | 3 |
| 17 | Stereotactic body radiation therapy for inoperable hepatocellular carcinoma as a local salvage treatment after incomplete transarterial chemoembolization显示文摘 | Jin‐Kyu Kang Mi‐Sook Kim Chul Koo Cho Kwang Mo Yang Hyung Jun Yoo Jin Ho Kim Sun Hyun Bae Da Hoon Jung Kum Bae Kim Dong Han Lee Chul Ju Han Jin Kim Su Cheol Park Young Han Kim | 2012 | Cancer2012,,21: | 3 |
| 18 | Endoscopic submucosal dissection for metachronous tumor in the remnant stomach after distal gastrectomy显示文摘 | Jong Yeul Lee Il Ju Choi Soo-Jeong Cho Chan Gyoo Kim Myeong-Cherl Kook Jun Ho Lee Keun Won Ryu Young-Woo Kim | 2010 | Surgical Endoscopy2010,,6: | 3 |
| 19 | The impact of the COVID‑19 outbreak on Chinese‑listed tourism stocks显示文摘This research explored the effects of the coronavirus disease(COVID-19)outbreak on stock price movements of China’s tourism industry by using an event study method.The results showed that the crisis negatively impacted tourism sector stocks.Further quantile regression analyses supported the non-linear relationship between the government’s responses and stock returns.The results present that the resurgence of the virus in Beijing did bring about a short-term negative impact on the tourism industry.The empirical results can be used for future researchers to conduct a comparative study of cultural differences concerning government responses to the COVID-19. | Wenmin Wu Chien‑Chiang Lee Wenwu Xing Shan‑Ju Ho | 2021 | Financial Innovation2021,7,1: | 3 |
| 20 | 尼可地尔在经皮冠状动脉介入治疗不稳定心绞痛时对心肌的保护作用显示文摘心肌损伤通常在经皮冠状动脉介入治疗(PCI)过程中出现,并且损伤可以通过对心肌酶的测试使之容易被监控。众所周知,尼可地尔是三磷酸腺苷ATP-敏感的K+通道的开启器,通过减小作用电位从而具有抗心律失常效应和保护心脏作用。比如,通过松弛血管平滑肌以减少微冠状动脉血流阻力。研究尼可地尔的心肌保护作用,IONA研究(尼可地尔对心绞痛的作用)即大规模对稳定型心绞痛进行的研究表明,尼可地尔口服给药能够减少冠心病致死率和非致命型心肌梗塞或胸痛意外住院治疗。目前已经对数个不稳定心绞痛(UAP)或急性心肌梗塞病人进行了尼可地尔心脏保护效应的研究评估,但还没有进行大规模研究。此研究的目的在于通过对经尼可地尔注射并PCI治疗12~48h后的不稳定心绞痛患者的心肌酶进行评估来预期考察尼可地尔的心脏保护作用。 | Ju Han Kim Myung Ho Jeong Kyung Ho Yun Kye Hun Kim Dong Koo Kang Seo Na Hong Sang Yup Lim Sang Hyun Lee Yun Sang Lee Young Joon Hong Hyung Wook Park Weon Kim Young Keun Ahn Jeong Gwang Cho Jong Chun Park Jung Chaee Kang 田玉敬 | 2017 | 首都食品与医药2017,24,18: | 3 |