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2053篇 您的检索式:作者名="Franks C"
    题名 作者 年代 出处 被引量
1利用铅同位素比值判断丹参不同产地来源显示文摘建立了用微柱流动注射与电感耦合等离子体质谱联用的铅同位素比值测量方法。利用铅与 5 磺基 8 羟基喹啉的螯合反应在线分离测定丹参样品中的铅同位素比值 ,并利用铅同位素比值的分布进行中药丹参产地来源的研究。实验结果表明 ,相同地区来源的丹参样品其铅同位素比值分布相对集中 ,而不同地区来源的丹参 ,铅的同位素比值则有明显的区别。因此 。黄志勇 杨妙峰 庄峙厦 王小如 Frank S C Lee 2003分析化学2003,31,9:30
2加速溶剂萃取-高效液相色谱-电喷雾飞行时间质谱联用分析莲子心中生物碱显示文摘建立了加速溶剂萃取-高效液相色谱-电喷雾飞行时间质谱(ASE-HPLC-DAD-ESI-TOF/MS)联用技术分析莲子心中生物碱类化合物的方法。采用ASE法对药材进行提取,萃取温度为100℃,压力为9646kPa,时间为10min。采用HPLC-DAD-ESI-TOF/MS联用技术对其中的化学成分进行了分离鉴定,HPLC采用AgilentEclipseXDB-C18色谱柱;流动相为0.1%三乙胺溶液,用氨水调pH=8.0(A),色谱纯乙腈(B),梯度洗脱;进样量为20μL,流速:1.0mL/min;检测波长:282nm。ESI-TOF/MS采用正离子电离模式,毛细管电压:4500V;喷雾气压:310.05kPa;干燥气(N2)流速:10.0L/min;干燥气温度:350℃,破碎电压:150V。鉴定了其中的6种生物碱分别为:前荷叶碱、莲心季铵碱、莲心碱、异莲心碱、荷叶碱和甲基莲心碱。李文龙 陈军辉 殷月芬 王小如 Frank S C Lee 2008分析化学2008,36,1:24
3铁限制条件下东海原甲藻分泌铁载体显示文摘在铁限制条件下,进行东海原甲藻分泌铁载体的动态研究。对藻类在富铁与缺铁条件下生长状况、生长过程中分泌铁载体的情况以及海藻接种量对铁载体分泌的影响进行了连续观测,结果表明:东海原甲藻在缺铁条件下生长状况远不如在富铁条件下;随着藻类的生长,分泌铁载体不断增多,达指数生长期时,其分泌量也达到了最大值,之后藻类的生长和铁载体分泌都呈现下降趋势;高接种量东海原甲藻能分泌较多的铁载体,并在较短时间到达峰值。王颜萍 何鹰 郑晓玲 陈发荣 李瑞香 Lee Frank S C 王小如 2005生态学报2005,25,10:10
4^(18)F-FDG符合线路显像检测甲状腺癌转移灶的价值显示文摘目的 比较18F 脱氧葡萄糖 (FDG)双探头符合线路SPECT(DHCI)与PET显像检测甲状腺癌转移病灶的价值。方法 2 6例甲状腺癌患者在同 1天分别进行了18F FDGPET和18F FDGDHCI显像 ,患者均已行甲状腺切除术和131I治疗。肿瘤转移病灶大小由计算机自动勾边在PET显像图中测定。结果 2 6例甲状腺癌患者中 ,18F FDGPET共发现 12 6个肿瘤转移病灶 ,其中18F FDGDHCI检测到 92个 (73 % ) ,CT发现 76个 (6 0 % ) ,18F FDGDHCI的病灶检测率明显高于CT(P <0 0 5 )。根据病灶部位分析 ,18F FDGDHCI与PET对转移病灶检测的符合率在头颈部为 6 8% ,胸部为 83% ,而在骨转移病灶的符合率仅为 5 2 % (P <0 0 1)。根据病灶大小分析 ,当肿瘤转移病灶大于 1 5cm时 ,18F FDGDHCI与PET结果的一致率达 98% ;而在 1~ 1 5cm的病灶检测中 ,18F FDGDHCI仅能发现 5 6 % ;当病灶小于 1cm时 ,18F FDGDHCI则难以发现 ,而PET发现的病灶最小直径为 0 7cm。结论 当肿瘤转移病灶的直径大于 1 5cm时 ,18F FDGDHCI与PET具有相似的诊断准确性。黄钢 Tiepolt C Kropp J Franke F 詹惠明 仇建 袁济民 朱翠英 2001中华核医学杂志2001,21,1:6
5Retrograde-viewing device improves adenoma detection rate in colonoscopies for surveillance and diagnostic workup显示文摘AIM:To determine which patients might benefit most from retrograde viewing during colonoscopy through subset analysis of randomized,controlled trial data.METHODS:The Third Eye Retroscope Randomized Clinical Evaluation(TERRACE) was a randomized,controlled,multicenter trial designed to evaluate the efficacy of a retrograde-viewing auxiliary imaging device that is used during colonoscopy to provide a second video image which allows viewing of areas on the proximal aspect of haustral folds and flexures that are difficult to see with the colonoscope's forward view.We performed a post-hoc analysis of the TERRACE data to determine whether certain subsets of the patient population would gain more benefit than others from use of the device.Subjects were patients scheduled for colonoscopy for screening,surveillance or diagnostic workup,and each underwent same-day tandem examinations with standard colonoscopy(SC) and Third Eye colonoscopy(TEC),randomized to SC followed by TEC or vice versa.RESULTS:Indication for colonoscopy was screening in 176/345 subjects(51.0%),surveillance after previous polypectomy in 87(25.2%) and diagnostic workup in 82(23.8%).In 4 subjects no indication was specified.Previously reported overall results had shown a net additional adenoma detection rate(ADR) with TEC of 23.2% compared to SC.Relative risk(RR) of missing adenomas with SC vs TEC as the initial procedure was 1.92(P = 0.029).Post-hoc subset analysis shows additional ADRs for TEC compared to SC were 4.4% for screening,35.7% for surveillance,55.4% for diagnostic and 40.7% for surveillance and diagnostic combined.The RR of missing adenomas with SC vs TEC was 1.11(P = 0.815) for screening,3.15(P = 0.014) for surveillance,8.64(P = 0.039) for diagnostic and 3.34(P = 0.003) for surveillance and diagnostic combined.Although a multivariate Poisson regression suggested gender as a possibly significant factor,subset analysis showed that the difference between genders was not statistically significant.Age,bowel prep quality and withdrawal time did not significantly affect the RR of missing adenomas with SC vs TEC.Mean sizes of adenomas detected with TEC and SC were similar at 0.59 cm and 0.56 cm,respectively(P = NS).CONCLUSION:TEC allows detection of significantly more adenomas compared to SC in patients undergoing surveillance or diagnostic workup,but not in screening patients(ClinicalTrials.gov Identifier:NCT01044732).Peter D Siersema Amit Rastogi Anke M Leufkens Paul A Akerman Kassem Azzouzi Richard I Rothstein Frank P Vleggaar Alessandro Repici Giacomo Rando Patrick I Okolo Olivier Dewit Ana Ignjatovic Elizabeth Odstrcil James East Pierre H Deprez Brian P Saunders Anthony N Kalloo Bradley Creel Vikas Singh Anne Marie Lennon Daniel C DeMarco 2012World Journal of Gastroenterology2012,18,26:6
6Tolvaptan, an oral vasopressin antagonist, in the treatment of hyponatremia in cirrhosis显示文摘Andrés Cárdenas Pere Ginès Paul Marotta Frank Czerwiec John Oyuang Mónica Guevara Nezam H Afdhal 2011Journal of Hepatology2011,,3:6
7中国北京和长岛大气颗粒物中铅的同位素丰度比测定(英文)显示文摘采用高分辨电感耦合等离子体质谱技术(HRICPMS)分析了48个不同季节大气气溶胶颗粒样品中铅同位素丰度(A)比值,为中国城市铅污染源研究提供数据。样品采自中国北京和山东长岛地区(2002~2003年期间不同季节)。A(206Pb/207Pb)和A(208Pb/207Pb)的10次测定精密度为0.05%~0.19%RSD。李冰 刘咸德 董树屏 Veerle Van Lierde Frank Vanhaecke Freddy C Adams 2005岩矿测试2005,24,1:5
8Early prediction of major depression in chronic hepatitis C patients during peg-interferon α-2b treatment by assessment of vegetative-depressive symptoms after four weeks显示文摘AIM: To study the predictive value of the vegetative- depressive symptoms of the Zung Depression Rating Scale for the occurrence of depression during treatment with peg-interferon α-2b of chronic hepatitis C (CHC) patients. METHODS: The predictive value of vegetative- depressive symptoms at 4 wk of treatment for the occurrence of a subsequent diagnosis of major depressive disorder (MDD) was studied in CHC patients infected after substance use in a prospective, multi- center treatment trial in Belgium. The presence of vegetative-depressive symptoms was assessed using the Zung Scale before and 4 wk after the start of antiviral treatment. RESULTS: Out of 49 eligible patients, 19 (39%) developed MDD. The area under the ROC curve of the vegetative Zung subscale was 0.73, P = 0.004. The sensitivity at a cut-point of > 15/35 was 95% (95% CI: 74-100). The positive predictive value equalled 44% (95% CI: 29-60). CONCLUSION: In this group of Belgian CHC patients infected after substance use, antiviral treatment caused a considerable risk of depression. Seven vegetativedepressive symptoms of the Zung scale at wk 4 of treatment predicted 95% of all emerging depressions, at a price of 56% false positive test results.Geert Robaeys Jozef De Bie Marieke C Wichers Liesbeth Bruckers Frederik Nevens Peter Michielsen Marc Van Ranst Frank Buntinx 2007World Journal of Gastroenterology2007,13,43:4
9Highly active antiretroviral therapy dysregulates proliferation and differentiation of human pre-adipocytes显示文摘AIM To investigate the mechanism(s) by which potential effects of multi-drug highly-active antiretroviral therapy contributes to lipodystrophy syndrome. METHODS Preadipocytes from healthy donors were assessed for proliferation and differentiation in the presence of nucleoside reverse transcriptase inhibitors(NRTIs), nonnucleoside reverse transcriptase inhibitors(NNRTIs), and protease inhibitors(PIs) individually and in combination. Effects on proliferation were assessed with a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide assay and effects on differentiation were assessed from glycerol-3-phosphate dehydrogenase(GPDH) activity and quantitation of Oil Red O staining for intracellular lipid. Data were analyzed with a randomized block ANOVA with post-hoc Fisher's Least Significant Difference test. RESULTS Preadipocyte proliferation was inhibited by a combination of NNRTI + NRTI(14% at 48 h, P < 0.001) and PI + NRTI(19% at 48 h, P < 0.001) with additional suppression when ritonavir(RTV) was added(26% at 48 h). The drug combination of atazanavir(ATV) + RTV + emtricitabine(FTC) + tenofovir(TDF) had the greatest inhibitory effect on proliferation at 48 h. Preadipocyte differentiation was most significantly reduced by the efavirenz + FTC + TDF assessed either by GPDH activity(64%) or lipid accumulation(39%), P < 0.001. Combining NRTIs with a PI(ATV + FTC + TDF) significantly suppressed differentiation(GPDH activity reduced 29%, lipid accumulation reduced by 19%, P < 0.01). This effect was slightly greater when a boosting amount of RTV was added(ATV + FTC + TDF + RTV, P < 0.001). CONCLUSION Although combination antiretroviral therapy is clinically more efficacious than single drug regimens, it also has a much greater inhibitory effect on preadipocyte proliferation and differentiation.Eyone Jones Pavel Mazirka Margaret A McNurlan Frank Darras Marie C Gelato Giuseppe Caso 2017World Journal of Virology2017,6,3:3
10Efficacy of boceprevir, an NS3 protease inhibitor, in combination with peginterferon alfa-2b and ribavirin in treatment-naive patients with genotype 1 hepatitis C infection (SPRINT-1): an open-label, randomised, multicentre phase 2 trial显示文摘Paul Y Kwo Eric J Lawitz Jonathan McCone Eugene R Schiff John M Vierling David Pound Mitchell N Davis Joseph S Galati Stuart C Gordon Natarajan Ravendhran Lorenzo Rossaro Frank H Anderson Ira M Jacobson Raymond Rubin Kenneth Koury Lisa D Pedicone Clifford 2010The Lancet2010,,9742:3
11A型肉毒素局部注射治疗慢性腰背痛显示文摘目的探讨A型肉毒素局部注射治疗以腰背肌痉挛型为主的慢性腰背痛的临床疗效。方法对路易斯安娜州立大学疼痛中心9例诊断为神经肌肉综合征和腰骶神经根炎的慢性腰背痛患者给予局部注射A型肉毒素治疗。采用McGill疼痛评分、Oswestry & Roland-Morris失能评分、腰背肌肌肉痉挛评分以及功能运动范围对患者进行疗效评定。临床观察参数采集于病人转诊、第一次门诊和之后的随访治疗中。结果9例患者中,McGill疼痛评分改善7例,Oswestry & Roland-Morris失能评分改善5例,腰背肌肌肉痉挛评分改善7例,腰部运动功能改善4例。结论A型肉毒素局部注射是治疗以腰背肌痉挛为主的慢性腰背痛的有效方法。Bill Subin Randall C Cork Frank Zavisca 2009中国骨科临床与基础研究杂志2009,1,2:3
12Environmental magnetism: Principles and applications显示文摘Liu Qingsong Roberts Andrew P Larrasoa?a Juan C Banerjee Subir K Guyodo Yohan Tauxe Lisa Oldfield Frank 2012EN2012,,4:3
13Capillary equilibria of dislocated crystals 显示文摘FRANK F C 1951Acta Cryst1951,4,:2
14轿车变速器的表面致密化粉末冶金齿轮的使用性能显示文摘选择性表面致密化是改进粉末冶金钢的一种方法,高负载齿轮经过这种加工工艺处理,就能达到使用要求。本文介绍了粉末冶金螺旋齿轮的制造工艺与性能,用三轴总成成对试验台架、承载能力试验台架及噪声试验台架测定了齿轮的使用性能,并把试验结果和具有同样几何形状与表面质量的锻钢齿轮的数据进行了比较。结果表明,粉末冶金齿轮的承载能力与噪声级可和锻钢齿轮相媲美。Cünter Rau Lorenz S Sigl Gerold Mrk Frank Wattenberg 韩凤麟 2012粉末冶金技术2012,30,4:2
15不同污染源海水样本的分类模型研究显示文摘简要介绍了偏最小二乘建立分类模型方法的原理及优点,将该方法应用于处理胶州湾和莱州湾的几个主要污染源附近海域各站点取得的海水样本的气-质联用全谱数据,建立海水样品的分类模型,以判别海水中有机污染物的来源区域。结果表明:由于PLS法适合于处理变量数多样本数少、具有严重多重共线性数据的问题,应用于从两类及多类海水样品气-质联用全谱数据中提取海水污染来源区域的分类信息,得到的分类模型交叉检验相关系数达0.91以上,结果较为理想,可为正确判别污染源提供一个可靠的基础。另外文章采用所得模型的拟合值等一些信息作分类图的方法,与传统PLS作图方法比较,所得分类图更为清晰、直观,能较好地表达回归模型的分类效果。林燕 朱尔一 徐晓琴 LEE Frank S C 王小如 2007光谱学与光谱分析2007,27,10:2
16A conformationally sensitive GHR antibody : impact on GH signaling and GHR proteolysis显示文摘Jiang J Wang X He K Li X Chen C M Sayeski P P Waters M J Frank S J 2004Mol Endocrinol2004,18,12:1
17Plankton patchiness in highfrequency internal waves 显示文摘Lennert Cody C E Franks P J S 1999Marine Ecology Progress Series1999,186,:1
18Reliable extraction of a deepwater trace metal isotope signal from Fe Mn oxyhydroxide coatings of marine sediments显示文摘Gutjahr M Frank M Stifling C H 2007Che mical Geology2007,242,:1
19Ionospheric Imaging Using Computerized Tomography显示文摘Austen J R Franke S J Liu C H 1988Radio Science1988,23,3:1
20Multi-objective conditioning of a simple SVAT model显示文摘Franks S W Beven K J Gash H C 1999Hydrology and Earth System Sciences1999,3,4:1
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