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新型农村集体经济高质量发展:内涵特征、现实困境与应对策略

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农村金融研究 2024年第2期 14-27页

作者：赵黎中国社会科学院农村发展研究所中国社会科学院大学应用经济学院

发展新型农村集体经济,实现集体经济现代化转型,是促进乡村振兴和共同富裕的重要途径。论文在阐述与分析新型农村集体经济高质量发展的理论内涵与新型农村集体经济主要类型的基础上,回顾与总结新型农村集体经济的发展历程与改革成效,阐... 详细信息

发展新型农村集体经济,实现集体经济现代化转型,是促进乡村振兴和共同富裕的重要途径。论文在阐述与分析新型农村集体经济高质量发展的理论内涵与新型农村集体经济主要类型的基础上,回顾与总结新型农村集体经济的发展历程与改革成效,阐明新型农村集体经济发展面临的主要问题,并有针对性地提出推动新型农村集体经济高质量发展的路径和举措。同时,论文结合目前学界关于经济发展质量内涵的界定,从现实困境与需求出发,提出从治理、经济和社会三个维度理解新型农村集体经济高质量发展的内涵特征。研究表明,面向未来,可从治理、经济和社会三个维度优化社会主义市场经济条件下新型农村集体经济的高质量发展路径,为全面推进乡村振兴和实现农民农村共同富裕奠定更加坚实的物质基础和制度保障。

关键词：新型农村集体经济高质量发展经营型集体经济服务型集体经济市场经济

Potential and application of abortive transcripts as a novel molecular marker of cancers

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World Journal of Experimental Medicine 2024年第2期14卷 53-61页

作者： Tian-Miao Zhang Xiao-Nian Zhu Shao-Wei Qin Xue-Feng Guo Xue-Kun Xing li-Feng zhao Sheng-Kui Tan Guangxi Key Laboratory of Environmental Exposomics and Entire lifecycle Health Guilin Medical UniversityGuilin 541199Guangxi Zhuang Autonomous RegionChina School of Leisure and Health Guilin Tourism UniversityGuilin 541006Guangxi Zhuang Autonomous RegionChina

Abortive transcript(AT)is a 2-19 nt long non-coding RNA that is produced in the abortive initiation *** initiation was found to be closely related to RNA polymerase through in vitro ***,the distribution of AT length and the scale of abortive initiation are correlated to the promoter,discriminator,and transcription initiation sequence,and can be affected by transcription elongation *** plays an important role in the occurrence and development of various *** we summarize the discovery of AT,the factors responsible for AT formation,the detection methods and biological functions of AT,to provide new clues for finding potential targets in the early diagnosis and treatment of cancers.

关键词： Abortive transcript Abortive initiation RNA polymerase Transcription Tumor marker

Application of horticulture therapy as a health intervention for elderly people in nursing homes:a scoping review

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Frontiers of Nursing 2024年第3期11卷 231-242页

作者： Jing-Jing Wang Xiao-Yu Niu Ming-li zhao Department of Community Health Nursing School of Nursing and HealthZhengzhou UniversityZhengzhouHenan 450007China Department of Nursing Shanghai Fifth People’s HospitalFudan UniversityShanghai 200240China

Objective:To review the scope of interventional studies on horticultural therapy(HT)applied to elderly people in nursing institutions to support the efficient implementation of HT among this target ***:In accordance with the scoping review framework proposed by the Joanna Briggs Institute(JBI),the Pub Med,JSTOR,Web of Science,CNKI,and Wanfang databases were *** from the retrieved literature were summarized and ***:In all,18 studies were included in this *** target population groups of interventions included self-supporting elderly people,cognitively impaired elderly people,elderly people with negative emotions,and elderly people with frailty living in nursing *** interventions,including planting,craft activities,derivative activities,and outdoor viewing activities,are implemented indoors,outdoors,or in mixed *** most common duration of the intervention was 8 weeks,the most common frequency was once per week,and the most common session duration was 60 ***:The measurements used in HT interventions included assessments of physical,psycho-mental,and social health;quality of life;and activity *** studies should include partially dependent groups and completely dependent groups of elderly individuals,interventions that last at least 6 months,scientifically designed activity intensity and safety-guarantee plans,and outcomeevaluation indicators such as compliance and intervention benefits.

关键词： elderly people horticultural therapy intervention nursing home scoping review

High Yield Cultivation and Pest Control Technology of Cashew

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Plant Diseases and Pests 2024年第3期15卷 21-22页

作者： li zhao Weijian HUANG Zhongrun ZHANG Haijie HUANG Tropical Biodiversity and Bioresource Utilization Laboratory Qiongtai Normal UniversityHaikou 570100China Tropical Crops Genetic Resources Institute Chinese Academy of Tropical Agricultural Sciences/National Cultivar Improvement Center of Tropical Fruit TreeHaikou 571101China

In order to enhance the yield and quality of cashew,it is essential to implement high-yield cultivation techniques effectively throughout the production ***,pest control measures should be employed to provide technica... 详细信息

关键词： Cashew High yield cultivation Pest control technology

Preparation of Flower-like Copper Foam Supported Co_(3)O_(4) Electrocatalyst and Its Hydrogen Evolution Performance

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Journal of Wuhan University of Technology(Materials Science) 2024年第2期39卷 327-331页

作者：李兆 CHENG Julong WANG Yanan WU Kunyao CAO Jing School of Materials Engineering Xi’an Aeronautical InstituteXian 710077China

Flower-like copper foam Co_(3)O_(4) catalysts(Co_(3)O_(4)/CF) were prepared by hydrothermal *** crystalline structure and microscopic morphology of the prepared samples were characterized by using X-ray diffractometer(XRD) and scanning electron microscope(SEM),and the electrochemical properties were investigated by an electrochemical *** experimental results show that the Co_(3)O_(4) catalysts are successfully prepared on the foamed copper support by hydrothermal method,and the material’s morphology is mainly flower *** the current density is 10 mA·cm^(-2),the overpotential value of the Co_(3)O_(4)/CF catalyst is 141 mV,lower than that of blank *** electrochemical impedance(EIS) spectrum shows that the R_(ct )value of the Co_(3)O_(4)/CF catalyst decreases,and the Coulomb curves of double-layer show that the electrochemically active area of the Co_(3)O_(4)/CF catalyst efficiently increases compared with that of the blank ***,the as-obtained Co_(3)O_(4)/CF catalyst exhibits a good hydrogen evolution rate,showing great applicability potential in the catalytic electrolysis of water for hydrogen production.

关键词： Co_(3)O_(4)/CF composite structure electrocatalysis hydrogen evolution reaction

Experimental and simulation study on shear stress-induced erythrocyte damage based on vortex oscillator

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Biomedical Engineering Communications 2024年第1期3卷 23-30页

作者： Xu Mei li-Pu zhao lian Hou Ying-Ying Zhong State Key Laboratory of Digital Medical Engineering School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China School of Mechanical and Electrical Engineering Silicon Lake Vocational and Technical CollegeSuzhou 215006China College of Education Central China Normal UniversityWuhan 430079China

Background:Shear stress-induced erythrocyte damage,namely hemolysis,is an important problem in the development of blood-contacting medical devices such as mechanical circulatory support *** fluid dynamics simulation combined with hemolysis prediction models have been widely used to predict *** the development of hemolysis prediction models,the new hemolysis prediction model requires more experimental data to *** addition,the difference of in vitro blood-shearing device also affect the accuracy of hemolysis ***:To address these problems,a new in vitro blood-shearing device(vortex oscillator)was used to further verify the accuracy of the hemolysis prediction models,and to guide the optimal design of blood-contacting medical devices such as mechanical circulatory support ***,the flow field information such as wall stress and velocity of the vortex oscillator under different speeds was ***,different hemolysis prediction models were used to calculate hemolysis,and the predicted data was compared with the experimental *** and Conclusion:In this study,the flow field information inside the vortex oscillator at high rotational speeds was systematically investigated,and the prediction of hemolysis was carried *** results showed that the predicted data of hemolysis was significantly different from the experimental data,which indicated that it was urgent to establish a standardized in vitro blood-shearing platform to provide a reference for accurate hemolysis prediction.

关键词： CFD Hemolysis prediction model Vortex oscillator Shear stress

PagKNAT2/6a与PagKNAT2/6b在木质部发育中存在功能保守性

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林业科学研究 2024年第2期37卷 9-15页

作者：李海阳赵立子赵岩秋鲁东大学农林工程研究院山东烟台264025 鲁东大学农学院山东烟台264025

[目的]通过比较分析PagKNAT2/6a与PagKNAT2/6b在木质部发育中的功能差异,解析KNOX基因在木材形成过程中的生物学功能。[方法]利用相关软件进行基因序列比对分析;通过对转基因植株进行GUS染色和实时荧光定量(qRT-PCR)等实验进行基因表达... 详细信息

[目的]通过比较分析PagKNAT2/6a与PagKNAT2/6b在木质部发育中的功能差异,解析KNOX基因在木材形成过程中的生物学功能。[方法]利用相关软件进行基因序列比对分析;通过对转基因植株进行GUS染色和实时荧光定量(qRT-PCR)等实验进行基因表达模式分析,随后对茎部解剖学分析,进而解析PagKNAT2/6a对木质部发育的影响;最后,对次生壁合成相关基因(如纤维素合成相关基因CESA4、CESA7A、CESA7B等;半纤维素合成相关基因GUX1a、GUX1b、PARVUS;木质素合成相关基因COMT、CAD、LAC4等)的表达分析探究PagKNAT2/6a对次生壁合成的调控机制。[结果]PagKNAT2/6a与PagKNAT2/6b序列高度相似,在‘84K’不同组织中均有表达,在杨树茎、茎尖以及幼嫩叶片中表现出较高的表达量。对PagKNAT2/6a转基因植株的茎部解剖分析表明,与野生型相比,PagKNAT2/6a过表达抑制木质部发育;同时qRT-PCR分析表明PagKNAT2/6a基因通过调控次生壁合成相关基因的表达影响木质部发育。[结论]PagKNAT2/6a与PagKNAT2/6b均负调控木质部发育,同时存在功能保守性。

关键词： PagKNAT2/6a PagKNAT2/6b 杨树木质部发育保守性

Advances in selective catalytic oxidation of ammonia (NH_(3)-SCO): A review of catalyst structure-activity relationship and design principles

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Chinese Chemical Letters 2024年第1期35卷 169-180页

作者： zhao li Chunxue Wang Junjun Qiu Yixing Ma Chi Wang Xin Sun Kai li Ping Ning Fei Wang Faculty of Environmental Science and Engineering Kunming University of Science and TechnologyKunming 650500China National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries Kunming 650500China Faculty of Chemical Engineering Kunming University of Science and TechnologyKunming 650500China

NH_(3) in ambient air directly leads to an increase in the aerosol content in the air. These substances lead to the formation of haze to various environmental problems after atmospheric circulation and diffusion. Controlling NH_(3) emissions caused by ammonia escaping from mobile and industrial sources can effectively reduce the NH_(3) content in ambient air. Among the various NH_(3) removal methods, the selective catalytic oxygen method (NH_(3)-SCO) is committed to oxidizing NH_(3) to environmentally harmless H_(2)O and N_(2);therefore, it is the most valuable and ideal ammonia removal method. In this review, the characteristics of loaded and core-shell catalysts in NH_(3)-SCO have been reviewed in the context of catalyst structure-activity relationships, and the H_(2)O resistance and SO2 resistance of the catalysts are discussed in the context of practical application conditions. Then the effects of the valence state of the active center, oxygen species on the catalyst surface, dispersion of the active center and acidic sites on the catalyst performance are discussed comprehensively. Finally, the shortcomings of the existing catalysts are summarized and the catalyst development is discussed based on the existing studies.

关键词： Ammonia Selective catalytic oxidation Active metals and supports Influence of gas composition Reaction mechanism Catalyst structure-activity relationship

Neural network equalization based on delta-sigma modulation

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Chinese Optics Letters 2024年第4期22卷 8-13页

作者：刘博任建新吴翔宇陈帅东毛雅亚赵利 Nanjing University of Information Science&Technology Nanjng 210044China Key Laboratory for Information Science of Electromagnetic Waves(MoE) Fudan UniversityShanghai 200433China

We propose a neural network equalization delta-sigma modulation(DSM)*** performing DSM on the multiorder quadrature amplitude modulation(QAM)orthogonal frequency division multiplexing(OFDM)signal at the transmitting end,neural network equalizer technology is used in the digital signal processing at receiving *** this technology to a 4.6 km W-band millimeter wave system,it is possible to achieve a 1 Gbaud 8192-QAM OFDM signal *** data rate reached 23.4 Gbit/s with the bit error rate at 3.8×10^(-2),lower than soft-decision forward-error correction threshold(4×10^(-2)).

关键词： multi-order quadrature amplitude modulation W-band delta-sigma modulation neural network equalization nonlinear compensation