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    题名 作者 年代 出处 被引量
1颈椎三维有限元模型的建立及意义显示文摘目的 :建立颈椎 (C4~C7)三维有限元模型 ,以期应用于临床实验研究。方法 :根据正常中年女性CT与CT重建片 ,采用CAD数据处理技术 ,输入相关的材料特性 ,构建C4~C7三维有限元模型。模型包括颈C4~C74个椎体、C4 / 5~C6 / 73个椎间盘以及后部结构与主要的 5条韧带。共 2 178个三维固体 2 0节点有限元结构。在1 8Nm作用力下 ,观察节段运动与力 位移反应。对比国内外的实验结果进行检验。结果 :生物力学实验结果与以往实验模型结果基本相符。结论 :所建立的颈椎三节段有限元模型可以模拟颈椎生物力学实验。陈伯华J 孙鹏J Natarajan N An H Andersson GB 2002中国脊柱脊髓杂志2002,12,2:37
2Computer Aided Simulation on Precision Cold Forging of Universal Joint Cross显示文摘The 3D FEM numerical simulation on multi-action precision cold forging technology of universal joint cross and differential spider is done in this article using DEFORM Software, a commercial computer aided engineering software specializing in forming and heat treatment simulation technology, and suitable for cold, warm and hot forging process. The material flow properties, the dynamic variation of stress and strain in the process of deformation and the load-stroke curve have also been achieved. A good consistency is exhibited between simulation results and practical data. Based on the DEFORM simulation results, the optimized procedure has been found for forging a universal joint cross. What should be emphasized here is that a better understanding of practical forging characters and the environmental factors can greatly improve the simulation accuracy thus make the simulation results more reliable.H. Liu, G.N Liu, K J Huo ,T Liu, X H Zhang, K Liu, K Tao, Y. J. Liu 1. Mechanical Engineering School, Xi’an Jiaotong University, Xi’an, 710049, China 2.Strength Centre, Zhengzhou Research Institute of Mechanical Engineering, Zhengzhou 450052, China 3.Fo 2000Journal of Shanghai Jiaotong university(Science)2000,5,1:7
3Src homology 2 domain-containing inositol-5-phosphatase 1 (SHIP1) negatively regulates TLR4-mediated LPS response primarily through a phosphatase activity- and PI-3K-independent mechanism显示文摘An H Xu H Zhang M Zhou J Feng T Qian C Qi R Cao X 2006第二军医大学学报2006,27,1:6
4Better to be alone than in bad company:The antagonistic effect of cisplatin and crizotinib combination therapy in non-small cell lung cancer显示文摘AIM To investigate the potential benefit of combining the cMET inhibitor crizotinib and cisplatin we performed in vitro combination studies.METHODS We tested three different treatment schemes in four non-small cell lung cancer(NSCLC) cell lines with a different cMET/epidermal growth factor receptor genetic background by means of the sulforhodamine B assay and performed analysis with Calcusyn.RESULTS All treatment schemes showed an antagonistic effect in all cell lines,independent of the cMET status.Despite their different genetic backgrounds,all cell lines(EBC-1,HCC827,H1975 and LUDLU-1) showed antagonistic combination indexes ranging from 1.3-2.7.These results were independent of the treatment schedule.CONCLUSION These results discourage further efforts to combine cMET inhibition with cisplatin chemotherapy in NSCLC.Nele Van Der Steen Christophe Deben Vanessa Deschoolmeester An Wouters Filip Lardon Christian Rolfo Paul Germonpré Elisa Giovannetti Godefridus J Peters Patrick Pauwels 2016World Journal of Clinical Oncology2016,7,6:2
5Development of a novel mouse model for dengue virus infection显示文摘An J Kimura-Kuroda J Hirabayashi Y 1999Virology1999,263,1:2
6生理过度觉醒相关失眠增加高血压风险显示文摘先前的研究显示,失眠和客观睡眠时间过短与高血压风险增加相关,并推测其潜在的机制是生理过度觉醒。在该研究中,研究者通过多次睡眠潜伏期试验(multiplesleeplatencytest,MSLT)——一种睡眠/觉醒的标准测试,探讨与生理过度觉醒相关的失眠是否与高血压风险增加相关。Li Y Vgontzas AN Fernandez-Mendoza J Bixler EO Sun Y Zhou J Ren R Li T Tang X 戴伦 练桂丽 2015中华高血压杂志2015,23,2:2
7Impact of virus genotype on interferon treatment of patients with chronic hepatitis C: a multicenter controlled study显示文摘BACKGROUND: Some factors have been reported to besassociated with a greater likelihood of sustained viral re-sponse ( SVR) in the interferon (IFN) treatment of chronichepatitis C. The factors include HCV genotype, HCVRNA level in serum, state of liver disease, baseline bodyweight, age, sex, and race. The aim of this trial was to in-vestigate the influence of HCV genotype on the IFN treat-ment of patients with chronic hepatitis C.METHODS: The genotypes of HCV virus were determinedin the patients with chronic hepatitis C from several hospi-tals of China enrolled into the randomized, opened andcontrolled trial of Peg-IFN alpha-2a (pegasys) treatment,controlled with IFN-α-2a (roferon-A). The serum ALTlevels and HCV RNA concentrations of the patients weredetected before and at the end of treatment and during thefollow-up. The influence of HCV genotype on the IFNtreatment of patients with chronic hepatitis C was analyzedin intention-to-treat (ITT) population.RESULTS: The HCV genotypes of 202 patients were deter-mined. Of these patients, 158(78.22%) were infected withgenotype 1 HCV and 44(21.78%) with genotype non-1.The viral response at the end of treatment (ETVR) andsustained viral response (SVR) rates were 53.80% and25.32% respectively in patients with genotype 1 HCV, butthey were 61.36% and 43.18% in patients with genotypenon-1. The difference of SVR between patients with geno-type 1 HCV and those with genotype non-1 was significant(P =0.021). After being grouped by the used drugs, theETVR rates of patients infected with genotype 1 and non-1HCV were 76.83% and 80.95% in the patients treated withpegasys (P =0.686); but their SVR rates were 35.37% and66.67% (P =0. 01). The viral relapse rate of genotype 1HCV (55.56%) was significantly higher than that of geno-type non-1 HCV (23.53%) (P=0.02). In roferon-A group,the ETVR and SVR rates of patients with genotype 1 HCVwere 28.95% and 14.47% respectively, which were lowerbut not more significant than those of patients with geno-type non-1 HCV (43.48% and 21.74%). Moreover, the vi-ral relapse rate of genotype 1 HCV (72.73%) was higherbut not more significant than that of genotype non-1 HCV(50.00%) (P=0.21).CONCLUSION: HCV genotype could affect the efficacies,mainly sustained responses, of IFN treatment in patientswith chronic hepatitis C, and the effects of IFN are relatedto drugs and therapeutic course.Yao Xie, Dao-Zhen Xu, Zhi-Meng Lu, Kang-Xian Luo, Ji-Dong Jia, Yu-Ming Wang,Gui-Zhen Zhao, Shu-Lin Zhang and Da-Zhi Zhang Department of Infeetious Diseases , Beijing Ditan Hos-pital, Beijing 100011 , China Department of Infec-tious Diseases, Ruijin Hospital, Shanghai 200025, China De-partment of Infectious Diseases, Naifang Hospital, First Military Medical U-niversity, Guangzhou 510515, China (Luo KX) Center of Liver Disease,Beijing Friendship Hospital, Beijing 100050, China (Jia J D ) Institute ofInfectious Disease, Southwest Hospital, Third Military Medical University,Chongqing 410032, China Department of Infectious Disea-ses, Second Hospital, China Medical University, Shenyang 110004, China Department of Infectious Diseases, First Hospital, Xi’ an Jiao-tong University, Xi’ an 710061 , China ) Liver Disease Centerof Chongqing, Second Hospital, Chongqing Medical University,Chongqing 410010, China 2004Hepatobiliary & Pancreatic Diseases International2004,3,3:2
8血根碱对肉鸡生长性能、相对器官重量、盲肠菌群、血清胆固醇水平以及肉品质的影响显示文摘研究旨在探索日粮添加血根碱(SGV)对肉鸡生长性能、相对器官重量、盲肠菌群、血清胆固醇水平和腿肌丙二醛含量的影响。选用840日龄雄性肉鸡(罗斯品种)饲养于28个稻草垫上,随机分为4个处理:玉米-豆粕型基础对照日粮、基础日粮中添加卑霉素10 ppm作为生长促进剂(AGP)、基础日粮中添加SGV 20 ppm(SGV20)和50 ppm(SGV50)。与饲喂基础日粮的肉鸡相比,基础日粮中添加AGP组、SGV20组和SGV50组的肉鸡最终体重(BW)、日增重、饲料转化率(FCR)显著改善(P<0.05)。与对照组相比,SGV20喂养组的肉鸡相对空肠重量显著降低(P<0.05),所有添加SGV组肉鸡相对空肠或回肠长度显著升高(P<0.05)。SGV20组较对照组肉鸡肠道菌群有所改变,尤其是盲肠乳酸菌数增加,但AGP组无改变。SGV20组或SGV50组肉鸡的总胆固醇水平较对照组显著降低(P<0.05),控制饮食物显著降低(P<0.05)。添加SGV后,作为脂质过氧化反应指示剂的腿肌丙二醛含量显著降低(P<0.05)。研究表明,在肉鸡日粮中补充SGV 20或50 ppm可以提高肉鸡生长性能,改变多种生物和生理参数,如相对器官重量、血清胆固醇水平、肠道菌群和肉品质。Lee K W Kim J S Oh S T Kang C W An B K 2015饲料博览2015,0,3:2
9Volume holographic wavelength demultiplexer based on rotation multiplexing in the 90° geometry显示文摘An J W Kim N Lee K W 2001Opt Commun2001,197,:2
10Machine learning for detecting mesial temporal lobe epilepsy by structural and functional neuroimaging显示文摘Mesial temporal lobe epilepsy(mTLE),the most common type of focal epilepsy,is associated with functional and structural brain alterations.Machine learning(ML)techniques have been successfully used in discriminating mTLE from healthy controls.However,either functional or structural neuroimaging data are mostly used separately as input,and the opportunity to combine both has not been exploited yet.We conducted a multimodal ML study based on functional and structural neuroimaging measures.We enrolled 37 patients with left mTLE,37 patients with right mTLE,and 74 healthy controls and trained a support vector ML model to distinguish them by using each measure and the combinations of the measures.For each single measure,we obtained a mean accuracy of 74%and 69%for discriminating left mTLE and right mTLE from controls,respectively,and 64%when all patients were combined.We achieved an accuracy of 78%by integrating functional data and 79%by integrating structural data for left mTLE,and the highest accuracy of 84%was obtained when all functional and structural measures were combined.These findings suggest that combining multimodal measures within a single model is a promising direction for improving the classification of individual patients with mTLE.Baiwan Zhou Dongmei An Fenglai Xiao Running Niu Wenbin Li Wei Li Xin Tong Graham J Kemp Dong Zhou Qiyong Gong Du Lei 2020Frontiers of Medicine2020,14,5:2
11Effect of carbon nanotube addition on tribological behavior of UHMWPE显示文摘Zoo Y S An J W Lim D P 2004Tribology Letters2004,16,:1
12Anticarcinogenic activity of selenium-enriched green tea extracts in vivo显示文摘Xu J Yang F M An X X 2007Journal of Agricultural and Food Chemistry2007,55,:1
13Histone deacetylase activities are required for innate immune cell control of Thl but not Th2 effector cell function显示文摘Brogdon J L Xu Y Szabo S J An S Buxton F Cohen D 2007Blood2007,109,:1
14Dengue-specific CD8^+ T cells have both protective and pathogenic roles in dengue virus infection 显示文摘An J Zhou D S Zhang J L 2004Immtmol Lett2004,95,:1
15Exploring novel bioactive compounds from marine microbes 显示文摘ZHANG L X AN R WANG J P 2005Current Opinion in Microbiology2005,8,:1
16The kidney and homocysteine metabolism 显示文摘Friedman AN Bostom AG Selhub J 2001J Am Soc Nephrol2001,12,10:1
17Imaging vulnerable plaque by ultrasound显示文摘Demaria AN Narula J Mahmud E 2006J Am Coll Cardiol2006,47,:1
18State management methods for urban passenger transport system based on artificial system显示文摘Wang J An S Xie B 2006Dynamics of Continuous Discrete and Impulsive Systems-Series B-Applications & Algorithms 132006,,:1
19Blood pressure response to physical exertion in adolescents: influence of overweight and obesity显示文摘Carletti L Rodrigues AN Perez A J 2008Arq Bras Cardiol2008,91,1:1
20Structural and photocatalytic degradation characteristics of hydrothermally treated mesoporous TiO2 显示文摘An T C Liu J K Li G Y 2008Applied Catalysis A : General2008,350,2:1
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