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磁性纳米Fe_(3)O_(4)制备及在酵母RNA提取分析中的应用 被引量:2
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作者 王萍萍 李浩辰 +5 位作者 彭玉 罗小梦 朱丽华 王宏 陈芳 王楠 《大学化学》 CAS 2022年第6期91-101,共11页
磁珠法提取核酸是新冠病毒核酸检测的关键一环。基于此,以安全无毒的酵母RNA为对象,开发了一个涉及多学科化学知识交叉的综合实验,包括Fe_(3)O_(4)纳米磁珠制备与表征、RNA提取方法建立与机制探究、实际样品应用等。本实验既能锻炼学生... 磁珠法提取核酸是新冠病毒核酸检测的关键一环。基于此,以安全无毒的酵母RNA为对象,开发了一个涉及多学科化学知识交叉的综合实验,包括Fe_(3)O_(4)纳米磁珠制备与表征、RNA提取方法建立与机制探究、实际样品应用等。本实验既能锻炼学生综合运用化学知识和实验手段解决实际问题的能力,又能引导学生关注公共事件,培养其社会责任感。 展开更多
关键词 核酸提取 Fe_(3)O_(4) 酵母RNA FT-IR 紫外光度法
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System Evaluation and Meta Analysis of Total Clinical Effective Rate of Acupuncture and Moxibustion in Treating Depression during 2019-2022
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作者 xiaomeng luo Xiong CHEN +1 位作者 Keke MA Chunqi AI 《Medicinal Plant》 CAS 2023年第1期80-83,共4页
[Objectives]To systematically evaluate the total clinical effective rate of acupuncture treatment of depression,and provide clinical reference for the scheme design and selection of acupuncture treatment of depression... [Objectives]To systematically evaluate the total clinical effective rate of acupuncture treatment of depression,and provide clinical reference for the scheme design and selection of acupuncture treatment of depression.[Methods]By searching CNKI,Wanfang Data,CBM,VIP,Cochrane Library,Cochrane Central,Springer and other databases,randomized controlled experiment(RCT)on acupuncture and moxibustion treatment of depression from January 1,2019 to August 31,2022 was collected,to extract relevant data of total clinical effective rate and conduct methodological quality evaluation.ReviewManager 5.4.1 software was used for Meta analysis.[Results]22 RCTs were included,1602 patients in total.Among them,there were 804 cases in treatment group and 798 cases in control group.Meta analysis results displayed that acupuncture and moxibustion treatment of depression may be better than the control group in improving the total clinical effective rate,and the difference was statistically significant[MD=1.16,95%CI(1.11,1.21)].[Conclusions]Acupuncture and moxibustion can achieve a higher total clinical effective rate in the treatment of depression,which is worthy of clinical application.However,due to fewer studies included in this systematic evaluation,small sample size,and low quality,there was a high possibility of bias.Therefore,the above conclusions needed to be verified by high-quality,large-sample,and multi-center RCTs. 展开更多
关键词 ACUPUNCTURE DEPRESSION Total efficiency Randomized control Meta analysis
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Make or Buy in the Presence of Strategic Competition on Substitutable Products 被引量:1
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作者 Jianbin Li Yingying Wang +1 位作者 xiaomeng luo Weihua Zhou 《Journal of Systems Science and Systems Engineering》 SCIE EI CSCD 2019年第6期657-673,共17页
In this paper,we study make-or-buy decisions with the consideration of retail-level competition,in which a supplier provides substitutable products to two retailers.One incumbent retailer is capable of producing the p... In this paper,we study make-or-buy decisions with the consideration of retail-level competition,in which a supplier provides substitutable products to two retailers.One incumbent retailer is capable of producing the product in-house and makes the make-or-buy decision,while the rival retailer can only outsource from the supplier.Intuitively,the incumbent will not outsource if the wholesale price is higher than its production cost.However,we illustrate this may not be true when the supplier also supplies the retail rival.In this case,the incumbent may accept a high wholesale price to limit the supplier's incentive to serve the retail rival on particularly favorable terms.Moreover,under certain circumstances,the supplier may charge a wholesale price lower than its production cost to attract orders from the incumbent,which can generate for the supplier and the incumbent a higher total profit than the situation in which the incumbent makes the product in-house. 展开更多
关键词 MAKE or BUY OUTSOURCING SUBSTITUTABLE products PRICING strategy supply chain coordination
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