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2D Cd-MOF and its mixed-matrix membranes for luminescence sensing antibiotics in various aqueous systems and visible fingerprint identifying

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Chinese Chemical Letters 2023年第11期34卷 321-325页

作者： kexin ma Jing Li Huiyan ma Yan Yang Hua Yang Jing Lu Yunwu Li Jianmin Dou Suna Wang Suijun Liu Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology School of Chemistry and Chemical EngineeringLiaocheng UniversityLiaocheng 252000China School of Chemistry and Chemical Engineering Jiangxi Provincial Key Laboratory of Functional Molecular Materials ChemistryJiangxi University of Science and TechnologyGanzhou 341000China

The abuse of antibiotics has brought great harm to the human living environment and health,so it is extremely significant to develop an efficient and simple method to detect trace antibiotic residues in various ***,a new two-dimensional(2D)Cd-based metal−organic framework(Cd-MOF,namely LCU-111)and its mixed matrix membranes(MMMs)is sifted as luminescence sensors for efficient monitoring antibiotic nitrofurazone(NFZ)in various aqueous systems and applied as visible fingerprint *** LCU-111 has good selectivity,sensibility,reproducibility and anti-interference for luminescent quenching NFZ with low detection limits(LODs)of 0.4567,0.3649 and 0.8071 ppm in aqueous solution,HEPES biological buffer,and real urban Tuhai River water,***,the luminescent test papers and MMMs allow the NFZ sensing easier and more rapid by naked eyes,only with a low LOD of 0.8117 ppm for MMMs ***,by combining multiple experiments with density functional theory(DFT)calculations,the photo-induced electron transfer(PET)quenching mechanism is further *** importantly,potential practical applications of LCU-111 for latent fingerprint visualization provide lifelike evidences for effective identification of individuals,which can be applied in criminal investigation.

关键词： MOF luminescence sensor Mixed-matrix membranes Real urban river water Antibiotic nitrofurazone Visible fingerprint identifying

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Offering the win-win solutions between ecological conservation and livelihood development:National parks in Qinghai, China

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Geography and Sustainability 2020年第4期1卷 251-255页

作者： Qi Cheng Xue Cheng kexin ma Xinquan Zhao Jiapeng Qu Research Monitoring and Evaluation Center of Qinghai National Park Xining 810008China Institute of Sanjiangyuan National Park Chinese Academy of SciencesXining 810008China Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau BiologyChinese Academy of SciencesXining 810008China Qinghai Geological Survey Xining 810008China College of Pastoral Agriculture Science and Technology Lanzhou UniversityLanzhou 730020China Qinghai Provincial Key Laboratory of Animal Ecological Genomics Qinghai 810008China

National parks as protected areas have been on the spotlight because they are essential in achieving ecological civilization in *** the profound achievements of national parks to conserve nature,the benefits of national parks for local residents remain *** the theory of harmonious coexistence between human and nature,this study focused on the development of local people’s livelihood in Qinghai’s national *** systematically explored the establishment of the national parks in Qinghai Province,analyzed the current prob-lems,and provided the main measures for developing people’s livelihood in protected areas in *** study put forward the viewpoint that national parks should set a long-term goal,and gradually advance based on the environmental conditions and appropriately prioritize the improvement of local people’s wellbeing in the future.

关键词： Ecological conservation National park Protected area system Livelihood development Qinghai

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Enlightenment of EU New Common Agricultural Policy on Protection and Sustainable Utilization of Cultivated Land in China

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Asian Agricultural Research 2021年第10期13卷 21-27页

作者： kexin ma Zisheng YANG Institute of Land Resources and Sustainable Development Yunnan University of Finance and EconomicsKunming 650221China

EU common agricultural policy is a guiding policy implemented by European member states for nearly 60 years and continuously reformed according to the international *** present,its reform direction is consistent with the requirements of cultivated land protection and sustainable utilization in China's"14^(th) five-year"plan,which could provide reference for *** on analyzing protection and sustainable utilization of cultivated land in China and the reform process of EU common agricultural policy,referring to main measures of the new common agricultural policy with advanced nature and superiority,and combining actual situation of China,three suggestions on promoting the implementation of cultivated land protection and sustainable utilization strategy in China are proposed:perfecting legal system of cultivated land protection and sustainable utilization in China,agricultural subsidies inclining to young farmers to stimulate the new vitality of cultivated land protection,taking green development as goal orientation and scientifically carrying out ecological construction of cultivated land,to provide better system guarantee for maintaining China's food security.

关键词： Farmland protection EU common agricultural policy Sustainable utilization Enlightenment

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Genomic selection: A breakthrough technology in rice breeding

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The Crop Journal 2021年第3期9卷 669-677页

作者： Yang Xu kexin ma Yue Zhao Xin Wang Kai Zhou Guangning Yu Cheng Li Pengcheng Li Zefeng Yang Chenwu Xu Shizhong Xu Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops College of AgricultureYangzhou UniversityYangzhou 225009JiangsuChina Department of Botany and Plant Sciences University of CaliforniaRiversideCA 92507USA

Rice(Oryza sativa)provides a staple food source for more than half the world ***,the current pace of rice breeding in yield growth is insufficient to meet the food demand of the everincreasing global *** selection(GS)holds a great potential to accelerate breeding progress and is cost-effective via early selection before phenotypes are *** simulation and experimental studies have demonstrated the usefulness of GS in rice ***,several affecting factors and limitations require careful consideration when performing *** this review,we summarize the major genetics and statistical factors affecting predictive performance as well as current progress in the application of GS to rice *** also highlight effective strategies to increase the predictive ability of various models,including GS models incorporating functional markers,genotype by environment interactions,multiple traits,selection index,and multiple omic ***,we envision that integrating GS with other advanced breeding technologies such as unmanned aerial vehicles and open-source breeding platforms will further improve the efficiency and reduce the cost of breeding.

关键词： Genomic selection Rice Hybrid Predictive ability Model

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The Effects of Boron-Doping on the Electronic Properties of Blue Phosphorene

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Graphene 2021年第3期10卷 41-47页

作者： Yejin Wu kexin ma Zhiyong Wang Xueqiong Dai College of Science Guilin University of Technology Guilin China Yejin Wu

In this paper, the effects of different boron (nitrogen)-doping on the electronic properties of blue phosphorene have been investigated by the first- principles calculations. We have taken eight doping configurations into account, the calculated results show that the bond length of P-B is decreasing with the doping concentration increasing. For the four boron atoms doping configuration, the geometric structure appears the distinct distortion. The band gap is decreasing with the doping concentration increasing, and it appears the transition from indirect band gap to direct band gap for boron doping configurations. It is hoped that the calculated results may be useful for designing electronic devices based on blue phosphorene.

关键词： Blue Phosphorene Boron-Doping Band Gap

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复合压裂技术在大庆油田Ⅱ、Ⅲ类致密储层的应用

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大庆石油地质与开发 2022年第4期41卷 161-167页

作者：马克新中国石油大庆油田有限责任公司井下作业分公司黑龙江大庆163453

针对常规缝网压裂措施无法有效动用大庆油田Ⅱ、Ⅲ类致密储层的问题,借鉴长庆油田成功试验经验,开展复合压裂技术攻关与试验。通过深化地质特征认识,以储层分类、复合压裂层段组合设计、缝网与井网匹配设计、复合压裂工艺设计形成适合... 详细信息

针对常规缝网压裂措施无法有效动用大庆油田Ⅱ、Ⅲ类致密储层的问题,借鉴长庆油田成功试验经验,开展复合压裂技术攻关与试验。通过深化地质特征认识,以储层分类、复合压裂层段组合设计、缝网与井网匹配设计、复合压裂工艺设计形成适合大庆外围油田F油层Ⅱ、Ⅲ类致密储层的复合压裂技术,实现储量控制最大化、储层改造最大化。结果表明:大庆油田X13试验区17口复合压裂措施井初期平均单井日增油4.1 t,是试油井平均单井日增油的1.63倍,措施井采油强度为0.56 t/(d·m),是试油井采油强度的1.44倍;应用复合压裂技术的试验区阶段累计产油6 305 t,预计单井增加可采储量1 500 t以上,是常规缝网压裂措施的2.5倍以上。研究成果为大庆油田F油层致密油Ⅱ、Ⅲ类储层的有效动用提供了新的思路。

关键词：复合压裂储层分类 Ⅱ、Ⅲ类致密储层层段组合裂缝与井网匹配性储量控制储层改造

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YCO-Ⅱ型岩心定向钻具的工作原理及应用

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地质与勘探 1999年第2期35卷 59-60页

作者：马克新湘潭工学院

分析了岩心定向钻具的作用及应用前景，介绍了ＹＣＯ—Ⅱ型岩心定向钻具的工作原理和性能特点。

关键词：岩心定向钻具露采边坡岩层产状工作原理

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高职学生实践能力培养视阈下“社团+”模式构建

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职业技术教育 2018年第32期39卷 22-24页

作者：马可心深圳职业技术学院校团委

实践性是高职教育人才培养的基本属性,是高职学生实践能力培养的基本体现。近年来,高职院校由规模发展向质量提升不断深入,作为人才培养重要内容的学生实践能力培养方式也日渐多样化,其中社团活动是重要方式之一。实践表明,采取社团活... 详细信息

实践性是高职教育人才培养的基本属性,是高职学生实践能力培养的基本体现。近年来,高职院校由规模发展向质量提升不断深入,作为人才培养重要内容的学生实践能力培养方式也日渐多样化,其中社团活动是重要方式之一。实践表明,采取社团活动与创新创业教育、专业竞赛、实践课程、志愿服务、特色项目等内容相结合的"社团+"模式,对提升学生实践能力效果显著。

关键词：高职学生实践能力 “社团+”模式

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Assessing the causality of interferon-γ and its receptor 1/2 with systemic lupus erythematosus risk using genetic data

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Rheumatology & Autoimmunity 2024年第2期4卷 109-118页

作者： Minjing Chang Kaixin Yao Jiawei Hao Yinqi Long Lulin Qiao Yaru Zhang kexin ma Peifeng He Shanxi Key Laboratory of Big Data for Clinical Decision Shanxi Medical UniversityTaiyuanShanxiChina Ministry of Education Key Laboratory of Cellular Physiology at Shanxi Medical UniversityTaiyuanShanxiChina Institute of Medical Data Sciences Shanxi Medical UniversityTaiyuanShanxiChina

Background::The interferon-γ (IFN-γ) signaling pathway is activated in systemic lupus erythematosus (SLE). This study aimed to assess the causal association between IFN-γ, IFN-γ receptor 1 (IFN-γR1), and IFN-γR2 and SLE using a bidirectional Mendelian randomization (MR) ***::Genetic instruments for exposure to IFN-γ, IFN-γR1, and IFN-γR2 were derived from a large genome-wide association study (GWAS) that included a sample size of 3301 participants. Instrumental variables for SLE were selected from another independent GWAS analysis comprising 5201 cases and 6099 controls with European ancestry. Bidirectional two-sample MR was performed using inverse variance weighting, MR-Egger regression, and weighted median methods. A series of sensitivity analyses were conducted to assess the robustness of the ***::The inverse variance weighting showed that IFN-γ had a positive causal association with the risk of SLE (odd ratio [OR] = 1.24, 95% confidence interval [CI]: 1.03–1.47, p = 0.018). IFN-γR2 levels were not associated with SLE risk after adjustment for multiple comparisons (OR= 0.85, 95% CI: 0.73–0.99, p= 0.034). No genetic association was also detected between IFN-γR1 and SLE (OR= 0.97, 95% CI: 0.79–1.19, p= 0.768). Evidence from bidirectional MR did not support reverse causality. The weighted median regression also showed directionally similar estimates. Conclusion::Higher levels of IFN-γ are significantly associated with an increased risk of SLE, providing insights into the pathogenesis of SLE.

关键词： interferon-γ interferon-γreceptor Mendelian randomization risk factor single-nucleotide polymorphism systemic lupus erythematosus

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城乡共同富裕的经济法思考

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西北农林科技大学学报（社会科学版） 2023年第2期23卷 23-35页

作者：倪楠丁元马可馨西北政法大学经济法学院西安710122

城乡一体化一直是我国处理城乡关系进程的主线。四十多年以来,我国城乡一体化依次经历城乡经济一体化、城乡经济社会一体化和城乡发展一体化三个阶段。目前,城乡一体化正处在第四个阶段即城乡共同富裕阶段,该阶段主要以巩固脱贫攻坚成... 详细信息

城乡一体化一直是我国处理城乡关系进程的主线。四十多年以来,我国城乡一体化依次经历城乡经济一体化、城乡经济社会一体化和城乡发展一体化三个阶段。目前,城乡一体化正处在第四个阶段即城乡共同富裕阶段,该阶段主要以巩固脱贫攻坚成果和乡村振兴为抓手,着力解决城乡收入依然差距大、城乡保障待遇差距明显、城乡营商环境不统一以及城乡公平、正义保障机制有待进一步提升等问题。在全面依法治国的背景下,面对这些问题,需要通过经济法对城乡市场进行适度干预,统筹城乡资源,进一步处理好政府和市场的关系,不断为城乡共同富裕阶段提供法治保障和制度供给。

关键词：城乡共同富裕经济法挑战与回应统筹城乡

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