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| 1 | 两种新型骨水泥的组织学和生物力学研究显示文摘我们研制了两种可被骨长入的骨水泥:一种是部分可吸收的骨水泥(PRC),以双酚α-甲基丙烯酸甘油酯(Bis-GMA)为基质,混合硅铝陶瓷和可吸收性聚合体颗粒调制成;另一种是磷酸钙骨水泥(CPC),由磷酸三钙、一水磷酸二氢钙、二水磷酸二钙和黄原胶组成。将这两种骨水泥分别植入家兔股骨和胫骨髁的骨缺损中,植入后2、4、12和24周取材,进行组织学观察和生物力学测试。结果发现,CPC组有递增的骨整合,伴有生物降解及巨噬细胞出现,力学测试显示抗压强度在4周之前一直降低,4周后才轻微升高,弹性模量随时间普遍降低。到第4周时,组织学观察还发现新生骨与CPC边缘直接接触。整个观察过程中未发现炎症反应。PRC组,骨整合及生物降解都很轻微,但在各个观察阶段,其抗压强度比松质骨和CPC组高(p<0.05),在4周之前,它的弹性模量高于松质骨和CPC组,4周后低于松质骨。(Bone 25:41S--45S;1999)。 | 卢建熙 I ABOUT G STEPHAN P VAN LANDUYT J DEJOU M FIOCCHI J LEMAITRE J-P PROUST | 2000 | 医用生物力学2000,15,3: | 10 |
| 2 | Dynamic magnetic resonance defecography in 10 asymptomatic volunteers显示文摘AIM: Evaluation of the wide range of normal findings in asymptomatic women undergoing dynamic magnetic resonance (MR) defecography. METHODS: MR defecography of 10 healthy female volunteers (median age: 31 years) without previous pregnancies or history of surgery were evaluated. The rectum was filled with 180 mL gadolinium ultrasound gel mixture. MR defecography was performed in the supine position. The pelvic floor was visualized with a dynamic T2-weighted sagittal plane where all relevant pelvic floor organs were acquired during defecation. The volunteers were instructed to relax and then to perform straining maneuvers to empty the rectum. The pubococcygeal line (PCGL) was used as the line of reference. The movement of pelvic floor organs was measured as the vertical distance to this reference line. Data were recorded in the resting position as well as during the defecation process with maximal straining. Examinations were performed and evaluated by two experienced abdominal radiologists without knowledge of patient history. RESULTS: Average position of the anorectal junction was located at -5.3 mm at rest and -29.9 mm during straining. The anorectal angle widened significantly from 93° at rest to 109° during defecation. A rectocele was diagnosed in eight out of 10 volunteers showing an average diameter of 25.9 mm. The bladder base was located at a position of +23 mm at rest and descended to -8.1 mm during defecation in relation to the PCGL. The bladder base moved below the PCGL in six out of 10 volunteers, which was formally defined as a cystocele. The uterocervical junction was located at an average level of +43.1 mm at rest and at +7.9 mm during straining. The uterocervical junction of three volunteers fell below the PCGL; described formally as uterocervical prolapse. CONCLUSION: Based on the range of standard values in asymptomatic volunteers, MR defecography values for pathological changes have to be re-evaluated. | Andreas G Schreyer Christian Paetzel Alois Fürst Lena M Dendl Elisabeth Hutzel René Müller-Wille Philipp Wiggermann Stephan Schleder Christian Stroszczynski Patrick Hoffstetter | 2012 | World Journal of Gastroenterology2012,18,46: | 7 |
| 3 | A theory for muhiresolution signal dec- omposition:the wavelet representation显示文摘 | STEPHANE G M | 1989 | IEEE transactions on Pattern Analysis and Machine Intelligence1989,,7: | 1 |
| 4 | Gas-particle concentrations and distribution of aliphatic hydrocarbons,PAHs,PCBs and PCDD/Fs in the atmosphere of Athens(Greece)显示文摘 | Mandalakis M Tsapakis M Tsoga A Stephanou E G | 2002 | Atmos Environ2002,36,: | 1 |
| 5 | Supply Chain Design in the Food Industry显示文摘 | Jack G A J Vorst Stephan J van Dijk Adrie J M Beulens | 2001 | The International Journal on Logistics Management2001,12,2: | 1 |
| 6 | The ratio ofprostatespecific antigen ( PSA) to prostate volume(PSA density) as a parameter to improve the detectionof prostate carcinoma in PSA values in the range of〈 4ng/ml显示文摘 | Stephan C Stroebel G Heinau M | 2005 | Cancer2005,104,99: | 1 |
| 7 | Measures for mold control( part 5 ) : Use of Sodium Diacetate 显示文摘 | Bruemmer J M Stephan H Morgenstern G | 1982 | Getr- erde Mehl Bron1982,36,9: | 1 |
| 8 | Top 10 plant pathogenic bacteria in molecular plant pathology显示文摘 | John M Stephane G Shimpei M | 2012 | Molecular Plant Pathology2012,13,6: | 1 |
| 9 | Expression of RPS4 in tobacco induces an AvrRps4-indeendent HR that requires EDS1, SGT1 and HSP90显示文摘 | YAN Z STEPHAN D MICHAL S SWIDERSKI M JONES J D G | 2004 | The Plant Journal2004,40,: | 1 |
| 10 | Dysfunction of the hypothalamic-pituitary-adrenal axis and functional somatic symptoms, A longitudinal cohort study in the general population显示文摘 | Lineke M T Stephan J L Judith G M | 2009 | Psychoneuroendocrinology2009,34,6: | 1 |
| 11 | Integration of Biochemical Images of A Tumor Into Frameless Stereotaxy Achieved Using A Magnetic Resonance Imaging/magnetic Resonance Spectroscopy Hybrid Data Set显示文摘 | Andreas S Ewald M Stephan G | 2004 | Neurosury2004,101,: | 1 |
| 12 | Relevance of subcortical stroke in dysphagia显示文摘 | ColaMonique G Daniels Stephanic K Corey Dvid M | 2010 | Stroke2010,41,3: | 1 |
| 13 | Provision of load frequency control by PHEVs,controllable loads,and a cogeneration unit显示文摘 | Galus M D Stephan K Gö ran Andersson | 2011 | IEEE Transactions on Industrial Electronics2011,58,10: | 1 |
| 14 | An efficient controller for an adjustable speed induction-motor drive显示文摘 | GARCIA G O LUIS J C STEPHAN R M | 1994 | IEEE Transactions on Industrial Electronics1994,41,5: | 1 |
| 15 | Wavelet for a Vision显示文摘 | | 1996 | Proceedings of the IEEE1996,84,4: | 1 |
| 16 | A Theory for Multiresolution Signal Decomposition:The Wavelet Representation显示文摘 | | 1986 | IEEE Tram on Pattern Analysis and Machine Intelli-gence1986,,11: | 1 |
| 17 | Atmospheric concentration characteristics and gas-particle partitioning of PCBs in a rural area of eastern Germany显示文摘 | Mandalakis M Stephanou E G | | 0,,01: | 1 |
| 18 | Relation of free PSA/total PSA in serum for differentiating between patients with prostatic cancer and benign hyperplasia of the prostate:which cutoff should be used显示文摘 | Lein M Stephan G Jung K | | 0,,01: | 1 |
| 19 | Chemicals from agricultural biomass: chemoenzymatic approach for pro- duction of vinylphenols and polyvinylphenols from phe- nolic acids 显示文摘 | Hannes L Stephan G Krista M | 2013 | Green Process Synth2013,,2: | 1 |
| 20 | 显示文摘 | Stephan A M Kumar S G Renganathan N G | 2005 | Eur Polym J2005,41,1: | 1 |