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Effectiveness and safety of acupuncture for treating functional constipation: An overview of systematic reviews

Journal of Integrative Medicine 2022年第1期20卷 13-25页

作者： jun-peng Yao Li-ping Chen Xian-jun Xiao Ting-hui hou Si-yuan Zhou Ming-min Xu Kai Wang Yu-jun hou Lin Zhang Ying Li Acupuncture and Tuina School Chengdu University of Traditional Chinese MedicineChengdu 610075Sichuan ProvinceChina School of Health Preservation and Rehabilitation Chengdu University of Traditional Chinese MedicineChengdu 610075Sichuan ProvinceChina Department of General Practice West China Hospital of Sichuan UniversityChengdu 610041Sichuan ProvinceChina Graduate School Chengdu University of Traditional Chinese MedicineChengdu 610075Sichuan ProvinceChina

Background: Functional constipation(FC) is one of the most prevalent functional gastrointestinal disorders. Dissatisfaction with medications prescribed to treat FC may lead patients to seek alternative treatments. Numerous systematic reviews(SRs) examining the use of acupuncture to treat FC have reported inconsistent results, and the quality of these studies has not been fully ***: In this overview, we evaluated and summarized clinical evidence on the effectiveness and safety of acupuncture for treating FC and evaluated the quality and bias of the SRs we *** strategy: The search strategy was structured by medical subject headings and search terms such as‘‘acupuncture therapy" and ‘‘functional constipation." Electronic searches were conducted in eight databases from their inception to September *** criteria: SRs that investigated the effectiveness and safety of acupuncture for managing FC were *** extraction and analysis: Two authors independently extracted information and appraised the methodology, reporting accuracy, quality of evidence, and risk of bias using the following critical appraisal tools:(1) A Measurement Tool to Assess Systematic Reviews 2(AMSTAR 2);(2) Risk of Bias in Systematic Reviews(ROBIS);(3) Preferred Reporting Items for Systematic Reviews and Meta-analyses for Acupuncture(PRISMA-A);and(4) the Grading of Recommendations, Assessment, Development and Evaluations(GRADE). A j index was used to score the level of agreement between the 2 ***: Thirteen SRs that examined the clinical utility of acupuncture for treating FC were *** the AMSTAR 2 tool, we rated 92.3%(12/13) of the SRs as ‘‘critically low" confidence and one study as ‘‘low" confidence. Using the ROBIS criteria, 38.5%(5/13) of the SRs were considered to have ‘‘low risk"of bias. Based on PRISMA-A, 76.9%(10/13) of the SRs had over 70% compliance with reporting *** inter-rater agreement was good for AMSTAR 2, R

关键词： Functional constipation Acupuncture Overview Systematic review Meta-analysis

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Two Novel Myrinsol Diterpenes from Euphorbia prolifera

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Chinese Chemical Letters 2002年第8期13卷 744-747页

作者： Wan Jin ZHANG Dao Feng CHEN Ai jun hou Department of Pharmacognosy School of PharmacyFudan UniversityShanghai 200032

Two novel diterpenes, Euphorprolitherin A (1) and Euphorprolitherin B (2), were isolated from the roots of Euphorbia prolifera. Their structures were elucidated on the basis of spectroscopic methods.

关键词： Euphorbia prolifera Euphorbiaceae myrinsol diterpenes euphorprolitherin A euphorprolitherin B.

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A New HPLC Method to Determine Carbonyl Compounds in Air

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Chinese Chemical Letters 2002年第12期13卷 1199-1202页

作者： Qing Tao PENG Wen Xiang HU Xue jun hou Institute of Military Medicine Headquarters of General EquipmentBeijing 100101

In this paper, a new HPLC method was established to determine the carbonyl compounds in air. As the absorbent, 2, 4-dinitrophenylhydrazine (2, 4-DNPH) reacted with carbonyls specifically, which form the corresponding 2,4-dinitrophenylhydrazones, then analyzed by HPLC. The chromatographic conditions, the recovery rate, stability of samples, reagent blank, sampling efficiency were all studied systematically. The results showed that this established method had high sensitivity and good selectivity compared with other analytical methods, and it can determine ten carbonyl compounds in air in 26 min simultaneously.

关键词： Carbonyl compounds HPLC 2,4-dinitrophenylhydrazine.

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灌溉渠道常见问题与养护维修措施

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河南水利与南水北调 2024年第9期53卷 64-65页

作者：王秀琴郭晓冬侯君河南省豫东水利保障中心河南开封475002

灌溉渠道的养护与维修对于农业生产至关重要。灌溉系统是农业生产中必须存在的一环,它直接对农作物的生长和产量有着直接影响。同时,渠道运行过程中会受到不同程度的破坏和损伤,因此,为了保持灌溉渠道的正常运行,就需要定期合理地养护... 详细信息

灌溉渠道的养护与维修对于农业生产至关重要。灌溉系统是农业生产中必须存在的一环,它直接对农作物的生长和产量有着直接影响。同时,渠道运行过程中会受到不同程度的破坏和损伤,因此,为了保持灌溉渠道的正常运行,就需要定期合理地养护、维修灌溉渠道,确保灌溉系统的正常运转,提高渠道的灌溉效率,还能保障周边人民的人身、财产安全。基于此,文章主要对灌溉渠道中的常规养护和维修问题进行概述,并从定期检查、杂物清理、防渗加固、衬砌维修等方面介绍了灌溉渠道的常规养护与维修措施。

关键词：灌溉渠道农业生产养护维修防渗衬砌

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Triad mode resonant interactions in suspended cables

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Science China(Physics,Mechanics & Astronomy) 2016年第3期59卷 75-88页

作者： Tie Ding Guo hou jun Kang Lian Hua Wang Yue Yu Zhao College of Civil Engineering Hunan University Hunan Provincial Key Lab on Damage Diagnosis for Engineering Structures Hunan University

A triad mode resonance, or three-wave resonance, is typical of dynamical systems with quadratic nonlinearities. Suspended cables are found to be rich in triad mode resonant dynamics. In this paper, modulation equations for cable's triad resonance are formulated by the multiple scale method. Dynamic conservative quantities, i.e., mode energy and Manley-Rowe relations, are then constructed. Equilibrium/dynamic solutions of the modulation equations are obtained, and full investigations into their stability and bifurcation characteristics are presented. Various bifurcation behaviors are detected in cable's triad resonant responses, such as saddle-node, Hopf, pitchfork and period-doubling bifurcations. Nonlinear behaviors, like jump and saturation phenomena, are also found in cable's responses. Based upon the bifurcation analysis, two interesting properties associated with activation of cable's triad resonance are also proposed, i.e., energy barrier and directional dependence. The first gives the critical amplitude of high-frequency mode to activate cable's triad resonance, and the second characterizes the degree of difficulty for activating cable's triad resonance in two opposite directions, i.e., with positive or negative internal detuning parameter.

关键词： suspended cables triad mode interaction multiple scale method

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Two New Isoprenylated Stilbenes from Artocarpus chama

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Journal of Integrative Plant Biology 2007年第5期49卷 605-608页

作者： Yong-Hong Wang Ai-jun hou Dao-Feng Chen Department of Pharmacognosy School of Pharmacy Fudan University Shanghai 200032 China

Two new stllbenes with two Isoprenoid groups, namely artostllbenes A （compound 1） and B （compound 2）, were Isolated from the stems of Arfocarpus chama Buch.-Ham. by repeated column chromatography. The＆ structures were elucldated as （E）-4-[2-（7-meth-xy-2-2-d-methy-6-（3-methy-but-2-eny-）-2H-1-benz-pyran-5-y-）v-ny-]benzene-1- 2-dlol （compound 1） and （Z）-4-[2-（7-meth-xy-2-2-dimethy--6-（3-methy-but-2-eny-）-2H-1-benz-pyran-5-y-）v-ny-]ben- zene-l,2-dlol （compound 2） by spectroscopic methods, mainly by 1D-, 2D-NMR and MS spectra. Compounds 1 and 2 are two cls- and trans-lsomers and compound 2 is the flrst cis-stllbene isolated from Moraceous plants.

关键词： Artocarpus chama artostilbenes A and B isoprenylated stilbene Moraceae.

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长寿命压电加速度传感器寿命试验及评估技术

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环境技术 2024年第4期42卷 5-10,16页

作者：侯军涛黄庆宇吴飒中海油田服务股份有限公司油田技术研究院廊坊065201 北京航空航天大学可靠性与系统工程学院北京100191

针对长寿命传感器寿命评估困难的问题,本文提出一种长寿命压电加速度传感器产品寿命和可靠性评估方法。通过对压电加速度传感器产品进行物理特性、电特性、环境特性和应力分析,确定其失效判据,根据特性分析和应力分析确定敏感元件并制... 详细信息

针对长寿命传感器寿命评估困难的问题,本文提出一种长寿命压电加速度传感器产品寿命和可靠性评估方法。通过对压电加速度传感器产品进行物理特性、电特性、环境特性和应力分析,确定其失效判据,根据特性分析和应力分析确定敏感元件并制定试验方法为温度-振动复合应力试验,进行两因素两水平正交试验设计,测量产品试验中常温零点输出并绘制曲线,对曲线进行线性拟合外推产品伪寿命数据,代入广义对数线性模型并求解模型参数,最终计算得出产品正常应力的可靠寿命。确定产品正常工作应力95 %可靠性寿命在25年以上,满足各应用场景对产品的寿命和可靠性要求。得出结论温度振动复合应力试验及其数据分析方法能有效评估长寿命压电加速度传感器寿命和可靠性指标,在工程实际上有一定参考和实践意义。

关键词：压电加速度传感器复合应力加速寿命试验零点漂移

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Rapid and sensitive analysis of trace b-blockers by magnetic solidphase extraction coupled with Fourier transform ion cyclotron resonance mass spectrometry

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Journal of Pharmaceutical Analysis 2022年第2期12卷 293-300页

作者： Xue Xiao Kaili He Ya-jun hou Zhangmin Xiang Yunyun Yang Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology Guangdong Provincial Engineering Research Center for Ambient Mass SpectrometryInstitute of AnalysisGuangdong Academy of Sciences(China National Analytical CenterGuangzhou)Guangzhou510070China

A rapid and sensitive method for analyzing trace b-blockers in complex biological samples,which involved magnetic solid-phase extraction(MSPE)coupled with Fourier transform ion cyclotron resonance mass spectrometry(FTICR-MS),was *** nanosilver-functionalized magnetic nanoparticles with an interlayer of poly(3,4-dihydroxyphenylalanine)(polyDOPA@Ag-MNPs)were synthesized and used as MSPE adsorbents to extract trace b-blockers from biological *** extraction,the analytes loaded on the polyDOPA@Ag-MNPs were desorbed using an organic solvent and analyzed by *** method was rapid and sensitive,with a total detection procedure of less than 10 min as well as limits of detection and quantification in the ranges of 3.5-6.8 pg/mL and 11.7-22.8 pg/mL,*** accuracy of the method was also desirable,with recoveries ranging from 80.9%to 91.0%following the detection of analytes in human blood *** the experimental results demonstrated that the developed MSPE-FTICR-MS method was suitable for the rapid and sensitive analysis of trace b-blockers in complex biological samples.

关键词： β-blockers Magnetic solid-phase extraction Nanosilver-functionalized magnetic nanoparticles Poly(3,4-dihydroxyphenylalanine) Fourier transform ion cyclotron resonance mass spectrometry

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Unimolecular artificial transmembrane channel with terminal dihydrogen phosphate groups showing transport selectivity for ammonium

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Chinese Chemical Letters 2020年第1期31卷 77-80页

作者： Jian-Yu Chen Qi Xiao Harekrushna Behera jun-Li hou Department of Chemistry Fudan University

A new artificial transmembrane channel molecule bearing dihydrogen phosphate groups has been *** terminal dihydrogen phosphate groups enable the channel to be highly negatively charged at both ends of the channel *** artificial channel could incorporate into the lipid bilayer efficiently under low *** channel displays high NH4+/K+selectivity due to the electrostatic interaction and hydrogen bonding between NH4+and the terminal dihydrogen phosphate groups.

关键词： Artificial transmembrane channel Ammonium transport Dihydrogen phosphate Pillararene Transmembrane transport Transport selectivity

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基于文献计量学的畜禽养殖废水处理研究现状及发展趋势

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环境工程技术学报 2024年第2期14卷 651-662页

作者：杨杨阳丁千周子振刘加强赵明雷范秀磊侯俊徐州工程学院环境工程学院中原工学院能源与环境学院教育部浅水湖泊综合治理与资源开发重点实验室河海大学环境学院江苏慧创环境检测有限公司

为全面了解畜禽养殖废水领域的研究进展,利用VOSviewer对Web of Science(WoS)核心合集数据库中2003—2023年畜禽养殖废水相关文献进行统计及可视化分析,通过关键词聚类分析,了解该领域的研究主线及多年变化。结果显示:畜禽养殖废水研究... 详细信息

为全面了解畜禽养殖废水领域的研究进展,利用VOSviewer对Web of Science(WoS)核心合集数据库中2003—2023年畜禽养殖废水相关文献进行统计及可视化分析,通过关键词聚类分析,了解该领域的研究主线及多年变化。结果显示:畜禽养殖废水研究领域近3年发文量增长迅猛,截至2023年发文量已达4117篇,中国、美国学者对该领域研究的贡献度较高且合作密切;有机物、营养物质、致病菌、重金属和抗生素为畜禽养殖废水处理的主要污染物,其中,重金属和抗生素近年来引起了较多的关注,加强畜禽养殖废水中抗生素的监管与处理具有紧迫性;在时间尺度上的映射发现,畜禽养殖废水主要以生物处理技术为主,关键词microalgae-based wastewater treatment(微藻驱动废水处理)的平均出现年份为2022年,表明其为当前畜禽养殖废水处理的新兴技术。此外,还从污染物种类、处理技术方面探讨了畜禽养殖废水处理研究的不足及未来发展趋势,提出基于可持续发展观的低能耗、抗冲击、高附加值的处理技术可能是未来的研究重点,应在此基础上开发新的水处理技术及应用研究。

关键词：畜禽养殖废水文献计量发展趋势可视化污染物去除

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