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| 1 | Synthesis, crystal structure and properties of binuclear manganese complex [(bipy)_2Mn_2(/J-O)(/i-Ac)_2(H_2O)_2](ClO_4)_2显示文摘Binuclear manganese complex [(bipy)2Mn2(μ-O)(μ-Ac)2(H2O)2](CIO4)2 was synthesized by the reaction of MnAc3 · 2H2O with 2,2’-bipyridine in the HAc-NaAc buffer (pH = 4.0). X-ray diffraction result for the single crystal shows that the crystal is monoclinic, space group C2/C, with a = 3.4082(7), 6 = 0.8644(2), c= 2.174 9(4) nm,β= 105.2°, V =6.186(2) nm3, Z= 8. There are two very strong peaks of UV-Vis spectrum in the range of 400-600 nm, which are similar to those of Mn catalase and Mn ribonuleotide reductase extracted from organisms. Cyclic voltammogram shows that the complex in CH3CN undergoes quasi-reversible one-electron reduction and oxidation at E1/2=1.15V. | LI Jun, YANG Shuming, ZHANG Fengxing, TANG Zongxun, SHI Qizhen & ZHOU Zhongyuan1. Department of Chemistry, Northwest University, Xi’an 710069, China 2. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China Correspondence should be addressed to Li Jun | 2000 | Chinese Science Bulletin2000，45，12： | 0 |
| 2 | Quality of reporting and adherence to the ARRIVE guidelines 2.0 for preclinical degradable metal research in animal models of bone defect and fracture:a systematic review显示文摘In vivo testing is crucial for the evaluation of orthopedic implant efficacy and safety.However,the translation and reproducibility of preclinical animal experiments are not always satisfactory,and reporting quality is among the essential factors that ensure appropriate delivery of information.In this study,we assessed the reporting quality of in vivo investigations that examined the use of degradable metal materials in fracture or bone defect repair.We employed scientific databases,such as PubMed,EMBASE,Web of Science,Cochrane Library,CNKI,WanFang,VIP and Sinomed to screen for in vivo investigations on fracture or bone defect repair using degradable metal materials,and extracted both epidemiological and main characteristics of eligible studies,and assessed their reporting quality using the ARRIVE guidelines 2.0.Overall,263 publications were selected,including 275 animal experiments.The overall coincidence rate of Essential 10(22 sub-items)and Recommended Set(16 sub-items)were 42.0%and 41.5%,respectively.Based on our analysis,the reporting quality of the published in vivo investigations examining fracture/bone defect repair with degradable metal materials was low,and there was a lack of transparent,accurate and comprehensive reporting on key elements of the experimental design and other elements that are meant to avoid bias. | Fengxing Ding Kaiyan Hu Xia Liu Chen Liu Jinwei Yang Xinli Shi Bin Liu Mei Wu Zhe Wang Liyuan Feng Jiazhen Zhang Bin Ma | 2022 | Regenerative Biomaterials2022，9，1： | 0 |
| 3 | A Classification Method of Imbalanced Data Base on PSO Algorithm显示文摘In order to improve the performance of the resampling algorithm in imbalanced data learning and the optimal combination of the weight coefficients of the base classifiers in the ensemble classification algorithm,a new algorithm based on particle swarm optimization(PSO)is proposed.In traditional sampling method,sampling rate is often set artificially.This would make the final classification can’t get a optimal solution.By using the particle swarm optimization algorithm,the sampling rate of the boundary samples and the safety samples are optimized to obtain the optimal over sampling rate self-adaptivly,the weekness of setting sampling rate of traditional method would be overcome. | Junru Lu Chunkai Zhang Fengxing Shi | 2016 | 国际计算机前沿大会会议论文集2016，，2： | 0 |
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