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914篇 您的检索式:作者名="MARCUS J"
    题名 作者 年代 出处 被引量
1极谱法测定无氧介质中根系氧气输导显示文摘介绍了利用极谱法测定凤眼莲 (Eichhorniacras sipesSolm .)、菰 (Zizanialatifolia (Geiseb)Stapf)、石菖蒲(AcorustartarinowiiSchott)、慈菇 (SagitarriasagittifoliaLinn .)、香蒲 (TyphaangustifoliaLinn .)等多种湿生植物根系在无氧介质中氧气的对外扩散速率 (ODR)。实验结果表明 ,对于同种植物而言 ,新生根较老根的氧气扩散速率快。根尖区 (约 0~ 5mm范围内 )氧气扩散速率最大 ,氧化活力最强。愈往上愈小 ,根基部的氧气输出速率接近为零 ,氧化活力几乎可以忽略。对于根长相同的不同种植物而言 ,香蒲的ODR最大 。吴振斌 贺锋 程旺元 成水平 Marcus J Darwent Bill Armstrong Jean Armstrong 2000植物生理学报(0257-4829)2000,26,3:16
2Analysis of monocyte chemotactic protein-1 gene polymorphism in patients with spontaneous bacterial peritonitis显示文摘AIM:To investigate a genetic polymorphism of the monocyte chemotactic protein-1 (MCP-1 ) gene in patients with spontaneous bacterial peritonitis (SBP).METHODS:MCP-1 genotyping was performed in 23 patients with SBP and 83 cirrhotic control patients with non-infected ascites.RESULTS:The frequency of carriers of the G-allele was lower in SBP patients but this difference did not reach statistical significance. However,in the subgroup of patients with alcoholic cirrhosis (n=80),carriers of the G-allele were significantly less frequent in SBP-patients (38.1%) than in cirrhotic controls (67.8%,P=0.021). CONCLUSION:In patients with alcoholic liver cirrhosis,the-2518 MCP-1 genotype AA is a risk factor for the development of SBP.Erwin Gbele Marcus Mhlbauer Hartwig Paulo Monika Johann Christin Meltzer Franz Leidl Norbert Wodarz Reiner Wiest Jrgen Schlmerich Claus Hellerbrand 2009World Journal of Gastroenterology2009,15,44:7
3Association between facet joint osteoarthritis and the Oswestry Disability Index显示文摘AIM:To investigate the correlation of facet joint osteoarthritis(FJOA) at lumbar levels L4/L5 and L5/S1 and the Oswestry Disability Index(ODI).METHODS:The study involved lumbar MRIs of 591 patients with a mean age of 47.3 years.The MRIs of the lumbar spine were performed on a 1.5 Tesla scanner(Magnetom Avanto,Siemens AG,Erlangen,Germany) using a dedicated receive only spine coil.After initial blinding,each dataset was evaluated by 2 board certified radiologist with more than 5 years experience in musculoskeletal imaging.In total 2364 facet joints were graded.Degenerative changes of the facet joints were evaluated according to the 4-point scale as proposed by Weishaupt et al Functional status was assessed using the ODI.The index is scored from 0 to 100 and interpreted as follows:0%-20%,minimaldisability; 20%-40%,moderate disability; 40%-60%,severe disability; 60%-80%,crippled; 80%-100%,patients are bedbound.Spearman's coefficient of rank correlation was used for statistical analysis,with significance set at P < 0.05.RESULTS:In total 2364 facet joints at lumbar levels L4/5 and L5/S1 were analysed in 591 individuals.FJOA was present in 97%(L4/L5) and 98%(L5/S1).At level L4/5(left/right) 17/15(2.9%/2.5%) were described as grade 0,146/147(24.7%/24.9%) as grade 1,290/302(49.1%/51.1%) as grade 2 and 138/127(23.4%/21.5%) as grade 3.At level L5/S1(left/right) 10/11(1.7%/1.9%) were described as grade 0,136/136(23.0%/23.0%) as grade 1,318/325(53.8%/55.0%) as grade 2 and 127/119(21.5%/20.1%) as grade 3.Regarding the ODI scores,patients' disability had a minimum of 0% and a maximum of 91.11% with an arithmetic mean of 32.77% ± 17.02%.The majority of patients(48.39%) had moderate functional disability(21%-40%).There was no significant correlation between FJOA and ODI on both sides of lumbar level L4/5 and on the left side of lumbar level L5/S1.A weak positive correlation was evaluated between ODI and FJOA on the right side of lumbar level L5/S1.CONCLUSION:The missing correlation of FJOA and ODI confirms our clinical experience that imaging alone is an insufficient approach explaining low back pain.Clinical correlation is imperative for an adequate diagnostic advance in patients with low back pain.Adel Maataoui Thomas J Vogl Marcus Middendorp Konstantinos Kafchitsas M Fawad Khan 2014World Journal of Radiology2014,6,11:6
4Correlation of lumbar lateral recess stenosis in magnetic resonance imaging and clinical symptoms显示文摘AIM To assess the correlation of lateral recess stenosis(LRS) of lumbar segments L4/5 and L5/S1 and the Oswestry Disability Index(ODI).METHODS Nine hundred and twenty-seven patients with history of low back pain were included in this uncontrolled study.On magnetic resonance images(MRI) the lateral recesses(LR) at lumbar levels L4/5 and L5/S1 were evaluated and each nerve root was classified into a 4-point grading scale(Grade 0-3) as normal,not deviated,deviated or compressed.Patient symptoms and disability were assessed using ODI.The Spearman's rank correlation coefficient was used for statistical analysis(P < 0.05).RESULTS Approximately half of the LR revealed stenosis(grade 1-3;52% at level L4/5 and 42% at level L5/S1) with 2.2% and 1.9% respectively reveal a nerve root compression.The ODI score ranged from 0%-91.11% with an arithmetic mean of 34.06% ± 16.89%.We observed a very weak statistically significant positive correlation between ODI and LRS at lumbar levels L4/5 and L5/S1,each bilaterally(L4/5 left:rho < 0.105,P < 0.01;L4/5 right:rho < 0.111,P < 0.01;L5/S1 left:rho 0.128,P < 0.01;L5/S1 right:rho < 0.157,P < 0.001).CONCLUSION Although MRI is the standard imaging tool for diagnosing lumbar spinal stenosis,this study showed only a weak correlation of LRS on MRI and clinical findings.This can be attributed to a number of reasons outlined in this study,underlining that imaging findings alone are not sufficient to establish a reliable diagnosis for patients with LRS.Annina SplettstoBer M Fawad Khan Bernd Zimmermann Thomas J Vogl Hanns Ackermann Marcus Middendorp Adel Maataoui 2017World Journal of Radiology2017,9,5:4
5Adding pegylated interferon to a current nucleos(t)ide therapy leads to HBsAg seroconversion in a subgroup of patients with chronic hepatitis B显示文摘Jens M. Kittner Martin F. Sprinzl Annette Grambihler Arndt Weinmann J?rn M. Schattenberg Peter R. Galle Marcus Schuchmann 2012Journal of Clinical Virology2012,,1:2
6Diatom-inspired Plastic Deformation Elements for Energy Absorption in Automobiles显示文摘Christin Hundertmark Rudiger Tinter Marc Ortelt Marcus J B Hauser 2015Journal of Bionic Engineering2015,12,4:2
7Early Esophageal Cancer: Pattern of Lymphatic Spread and Prognostic Factors for Long-Term Survival After Surgical Resection显示文摘Hubert J. Stein Marcus Feith Bjorn L. D. M. Bruecher Jorg Naehrig Mario Sarbia J Rudiger Siewert 2005Annals of Surgery2005,,4:2
8显示文摘 Marcus J A M 1994J Organomet Chem1994,482,:1
9Failure within one year following subtotal lumbar discectomy 显示文摘Wera GD Marcus RE Ghanayem A J 2008J Bone Joint Surg Am2008,1,:1
10The anodic dissolution and passivation of Ni-Cr-Fe alloys studied by esca显示文摘Marcus P Grimal J M 1992Corrosion Science1992,33,5:1
11Improvements inthe activated sludge process in the U K and U S 显示文摘Marcus J Healty 1989J WPCF1989,61,4:1
12Photodynamic therapy for the treatment of squamous cell carcinoma using benzoporphyrin derivative显示文摘Marcus J Glassberg E Dimino EL 1994J Dermatol Surg Oncol1994,20,:1
13Iatrogenic radial never injury with cannulate fixation of medial epicondyle fracrure in the pediatric humerus:a repore of 2 case显示文摘Marcu DM Balts J McCarty JJ 0,,02:1
14Students,self - presentation on Facebook : Anexamination of personality and self 一 construal factors 显示文摘Chen B Marcus J 2012Computersin Human Behavior2012,28,:1
15Refined food addiction:a classic substance use disorder 显示文摘IFLAND J R PREUSS H G MARCUS M T 2009Med Hypothe- ses2009,72,5:1
16Opaque Fi- nancial Reports, R2, and Crash Risk 显示文摘Hutton A P Marcus A J Tehranian H 2009Journal of Financial E- conomies2009,94,1:1
17Influence of the variable-speed wind generators in transient stability margin of the conven tional generators integrated in electrical grids显示文摘Nunes Marcus V A Lopes J A Pecas Zurn Hans Helmut 2004IEEE Trans on Energy Conversion2004,19,4:1
18Normal polysomnographic values for children and ado- lescents显示文摘MARCUS C L OMLIN K J BASINSIKI D J 1992Am Rev Respir Dis1992,156,:1
19Optimal management of the pancreatic remnant after pancreaticoduodenectomy显示文摘Marcus S Cohen H Ranson J 1995Ann Surg1995,221,6:1
20Mortality and air pollution in London: A time series analysis 显示文摘Schwartz J Marcus A 1990American Journal of Epidemiology1990,131,1:1
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