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| 1 | 用传统和超声提取的松果菊(紫锥菊属)的抗氧化和抗菌活性(英文)显示文摘Antioxidant and antimicrobial activities of Echinacea purpurea L. (Asteraceae) extracts obtained by classical and ultrasound solvent extraction were compared. The dry aerial part of plant was extracted by 70% etha-nol at a solid-to-liquid ratio of 1︰10 (m/v) and 25°C. The extract obtained by classical solvent extraction contained 29% larger amounts of phenolic compounds and 20% higher content of flavonoids. 2,2-diphenyl-1-picril hydrazyl radical (DPPH) scavenging reached 93.6% and the values of EC50 were (34.16±0.65) μg·ml-1 and (65.48±1.12) μg·ml-1 for the extracts obtained by the classical and ultrasound extractions, respectively. The extracts, independent of the extraction technique applied, showed a considerable growth inhibition on Candida albicans and Saccharo-myces cerevisiae, while no growth inhibition zones were observed for Aspergillus niger. The diameters of inhibition zone observed for all the microorganisms were larger for extracts obtained by classical extraction than those by ul-trasound extraction. | Ivana Stanisavljevi Sаa Stojievi Dragan Velikovi Vlada Veljkovi Miodrag Lazi | 2009 | Chinese Journal of Chemical Engineering2009,17,3: | 2 |
| 2 | Meta-analysis of stent thrombosis after drug-eluting stent implantation: 4-year follow-up显示文摘背景 Drug-eluting stents (DES ) 是在冠的动脉疾病的经皮的治疗使用的最普通的设备。最近,关于他们的安全侧面有一颗增加的担心,与赤裸的金属 stents (BMS ) 相比的特别地晚并且很迟了的 stent 血栓率。学习的目的是近来并且很晚比较报导发生在从有到四 years.Methods 的一个扩大后续时期的出版临床的研究的病人的 DES 和 BMS 的 stent 血栓搜索策略被开发识别在 BMS 和可得到的 DES 的晚或很迟了的血栓上报导的出版物通过 MEDLINE 和 Cochrane 图书馆数据库。二个独立评论家估价了合格研究并且提取了数据。机会比率(或) 为每结果被计算并且与 95% 信心间隔(CI ) 介绍了 .Results 十四使随机化控制试用,是使失明的至少单身者,被识别。近来在发生没有差别,在病人的很迟了的 stent 血栓与与 BMS 对待的病人相比与 DES 对待(迟了或 0.55, 95%Cl 0.23-1.31 和晚 / 很迟了的 OR=1.08, 95%CI 0.61-1.91 ).Conclusions 安全侧面 DES 以 stent 血栓类似于 BMS。我们没近来并且很晚发现增加的风险的证据为 DES 的血栓。 | Natasa M Milic Biljana J Parapid Miodrag C Ostojic Milan A Nedeljkovic Jelena M Marinkovic | 2010 | Chinese Medical Journal2010,,24: | 2 |
| 3 | 不同萃取技术获得的Artemisia sp的甲醇提取物其抗氧化和抗菌活性的比较(英文)显示文摘The polyphenol content,antioxidant and antimicrobial activities of the extracts obtained by classical, ultrasonic and Soxhlet extractions from dry aerial parts of two Artemisia species(Artemisia vulgaris and Artemisia campestris)were compared.Ultrasound positively affected the yield of extractive substance and the kinetics of extraction,but the extract obtained by the classical extraction showed the highest antioxidant activities and contained higher total contents of phenolic compounds and flavonoids than the extracts obtained by two other extraction techniques.Both flavonoid aglycones(apigenin,quercetin,quercetin 3,3′-dimethyl ether)and flavonoid glycosides(rutin,hyperoside and kaempferol 3-rhamnoside)were identified by thin layer chromatograph(TLC)analysis in the extracts from both species.A.campestris extracts were richer in quercetin than A.vulgaris and its antimicrobial activity was also better than A.vulgaris.Extracts obtained from both species were found to be more effective on the tested yeasts than bacteria.The kinetics of the total extractive substances,such as phenolic,flavonoids and quercetin extraction,was successfully described by the model of unsteady-state diffusion. | Ivana Karabegovi Milena Nikolova Dragan Velikovi Sаa Stojievi Vlada Veljkovi Miodrag Lazi | 2011 | Chinese Journal of Chemical Engineering2011,19,3: | 1 |
| 4 | The direct effects of diethylstiboestrol and nifedipine on the contractile responses of isolated human and rat detrusor muscles显示文摘 | Elliott RA Castleden CM Miodrag A | 1992 | Eur J Clin Pharm1992,43,: | 1 |
| 5 | Analysis of the spreader track wheels premature damages显示文摘 | Miodrag A Arsi6 Srd-an M Bonjak Zoran D Odanovi6 | 2012 | Engineering Failure Analysis2012,20,: | 1 |
| 6 | Generic Hard- ware Architectures for Sampling and Resampling in Par- ticle Filters显示文摘 | Akshay A Miodrag B Sangjin H | 2005 | EURASIP Journal on Applied Signal Processing2005,17,: | 1 |
| 7 | Sex hormones and the female urinary tract显示文摘 | Miodrag A Castleden CM Vallance TR | 1988 | Drugs1988,36,: | 1 |
| 8 | Synthesis, characterization and antimicrobial activity of copper and zinc-doped hydroxyapatite nanopowders显示文摘 | Vojislav Stani? Suzana Dimitrijevi? Jelena Anti?-Stankovi? Miodrag Mitri? Bojan Joki? Ilija B. Ple?a? Slavica Rai?evi? | 2010 | Applied Surface Science2010,,20: | 1 |
| 9 | The direct effects of di- ethylstilboestrol and nifedipine on the contractile responses of isola- ted human and rat detrusor muscles 显示文摘 | Eliiott RA Castleden CI Miodrag A | 1992 | Eur J Clin Pharmacol1992,43,2: | 1 |
| 10 | Synthesis and characterization of BaTiO_3/α-Fe_2O_3 core/shell structure显示文摘Multiferroic materials attracted a lot of attention in recent years because of their significant scientific interest and technological applications. The multiferroic core/shell powders have a better connectivity between the phases, resulting in superior dielectric and magneto electric properties. In this study, the influence of preparation condition on structure and properties of BaTiO_3/α-Fe_2 O_3 core/shell composite materials was examined. The five samples were obtained by varying synthesis conditions, such as synthesized method(co-precipitation and sonochemical method) and pH values of solution. XRD and Raman spectroscopy analyses were performed in order to determine phase composition and structural changes within samples. Morphology modifications were examined by SEM and EDS analyses. Finally, effect of structural and microstructural changes on magnetic and electrical properties was detected and explained. | Suzana FILIPOVI? Vera P.PAVLOVI? Miodrag MITRI? Steva LEVI? Neboj?a MITROVI? Aleksa MARI?I? Branislav VLAHOVI? Vladimir B.PAVLOVI? | 2019 | Journal of Advanced Ceramics2019,8,1: | 0 |