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外生性环境对农户宅基地流转意愿的影响机制研究——基于需求层次的中介效应

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农林经济管理学报 2024年第4期23卷 527-536页

作者：范胜龙孟盼盼福建农林大学公共管理学院福建福州350002

基于福建省845份实地调研数据,采用聚类分析法对农户宅基地需求层次进行界定,借助中介效应模型,探究外生性环境、需求层次对流转意愿的影响机制。结果表明:外生性环境显著影响流转意愿,交易市场的子变量流转案例对流转意愿的促进作用最... 详细信息

基于福建省845份实地调研数据,采用聚类分析法对农户宅基地需求层次进行界定,借助中介效应模型,探究外生性环境、需求层次对流转意愿的影响机制。结果表明:外生性环境显著影响流转意愿,交易市场的子变量流转案例对流转意愿的促进作用最为强烈;需求层次在政策激励、交易市场影响流转意愿中发挥中介作用,在社会环境影响流转意愿中发挥遮掩效应;外生性环境对流转意愿的影响在需求层次上具有异质性,生活类需求层次的农户流转宅基地更易受政策的激励,而情感类需求层次的农户更易受社会环境的影响。据此,建议探索侧重住宅用地属性的宅基地管理方式,落实农户资格权延期兑换制度,扩展宅基地基层治理网络,以全面推进宅基地流转工作。

关键词：农村宅基地流转意愿外生性环境需求层次中介效应

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环境监测在环保验收监测中的重要性与应用探讨

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皮革制作与环保科技 2024年第2期5卷 43-45页

作者：孟攀攀国检测试控股集团江苏京诚检测有限公司江苏徐州221300

环境保护在现代社会中的地位和重要性日益凸显,而环保验收监测作为环境保护的重要环节之一,具有不可忽视的作用和价值。随着经济的发展和工业化进程的加快,建设项目对环境的影响也日益突出,环保验收监测成为确保建设项目合法性、环境可... 详细信息

环境保护在现代社会中的地位和重要性日益凸显,而环保验收监测作为环境保护的重要环节之一,具有不可忽视的作用和价值。随着经济的发展和工业化进程的加快,建设项目对环境的影响也日益突出,环保验收监测成为确保建设项目合法性、环境可持续发展的一项重要手段。环保验收监测是对建设项目在竣工后进行的全面评估,旨在评估项目对环境的影响、危害程度,以及是否符合环保法律法规和标准的要求。而环境监测作为环保验收监测的重要组成部分,通过采集、分析和解释环境数据,可以提供科学、客观的依据,为评估建设项目的环境效应、制定环境保护策略和措施提供支持。在环保验收监测中,环境监测起着至关重要的作用,为评估环境影响、合规性评估、预警预测以及数据支持决策等提供了科学的手段和技术支持,为环境保护工作提供了可靠的数据和信息基础。只有通过全面、准确、科学的环境监测,才能更好地保护和改善环境质量,实现可持续发展的目标。

关键词：环境监测环保验收应用探讨

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5个栽培类型药菊分枝期抗旱性综合评价

中国农业科技导报 2024年第2期26卷 90-99页

作者：孟盼盼何海燕曹钰昕张丽欣吕清豪祁瑞林张红瑞河南农业大学农学院郑州450046 河南省经济作物推广总站郑州450002

为研究干旱胁迫对不同栽培类型药菊分枝期生长的影响,并评价不同药菊种质资源的抗旱性,以5个栽培类型药菊为试验材料,分别测定其农艺性状、生物积累量、生理特性等相关指标,并利用隶属函数法、主成分分析、相关分析进行抗旱性综合评价... 详细信息

为研究干旱胁迫对不同栽培类型药菊分枝期生长的影响,并评价不同药菊种质资源的抗旱性,以5个栽培类型药菊为试验材料,分别测定其农艺性状、生物积累量、生理特性等相关指标,并利用隶属函数法、主成分分析、相关分析进行抗旱性综合评价和抗旱鉴定指标筛选。结果表明,干旱胁迫下药菊分枝期的生长受到抑制,株高降低、茎粗减小、分枝数变少、生物量积累减少;渗透物质脯氨酸、可溶性糖、可溶性蛋白含量普遍增加;抗逆酶活性增强,膜脂过氧化程度加剧。抗旱性综合评价表明,各栽培类型药菊在分枝期的抗旱性强弱依次为:怀菊(‘怀白菊’)>滁菊>亳菊>皇菊>杭菊(‘大洋菊’)。研究结果为药菊种质选育、高产高效栽培奠定了基础。

关键词：菊花分枝期主成分分析隶属函数分析抗旱性综合评价

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Halogenated Thienoacene Derivatives with Improved Emission Properties

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Chemical Research in Chinese Universities 2024年第4期40卷 699-703页

作者： ZHANG Jingmei meng Zhihao ZHEN Yonggang HE Ping YU panpan HU Wenping Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029P.R.China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan430074P.R.China State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian116024P.R.China Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province China West Normal UniversityNanchong637000P.R.China Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education Jiangxi Normal UniversityNanchang330022P.R.China MOE Key Laboratory of Organic Integrated Circuits&Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of ChemistrySchool of SciencesTianjin UniversityTianjin300072P.R.China

Thienoacenes is one of most important groups of semiconducting materials due to the high stability and superior ***,there are scarce studies on the emission properties of thienoacenes to ***,we synthesized fluorinated and chlorinated dibenzo[d,d’]thieno[3,2-b;4,5-b’]dithiophenes(DBTDTs)derivatives F6-DBTDT and Cl6-DBTDT by sulfoxide cyclization,significantly lowering the energy levels relative to the parent compound *** to single crystal structure analysis,F6-DBTDT molecules adopt one-dimensional slipped stacking with closeπ-πinteractions of 3.43Å(1Å=0.1 nm),which is different from the parent compound DBTDT with herringbone stacking ***,the halogenated DBTDT derivatives exhibit enhanced emission properties both in solution and in the solid state,opening up possiblities to improve photoluminescence of thienoacences by halogenation.

关键词： Thienoacene Halogenation Photoluminescence Aggregation structure

Road map for, and technical challenges of, carbon-nanotube integrated circuit technology

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National Science Review 2024年第3期11卷 14-16页

作者： Jia Si panpan Zhang Zhiyong Zhang Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics School of Electronics Peking University State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications

The past decade has witnessed an explosion of research on carbon-nanotube(CNT) electronics due to their outstanding properties, including an ultrathin body, a high carrier mobility and a high saturation velocity.

关键词： TRANSISTORS

Layer by Layer Self-assembly Fiber-based Flexible Electrochemical Transistor

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Journal of Wuhan University of Technology(Materials Science) 2024年第4期39卷 937-944页

作者：谭艳 HAO panpan HE Yang ZHU Rufeng 王跃丹 School of Biomedical Engineering Hubei University of MedicineShiyan 442000China Key Laboratory of Textile Fiber and Products Ministry of EducationWuhan Textile UniversityWuhan 430200China

Poly(3,4-ethylenedioxyethiophene)-polystyrene sulfonic acid(PEDOT:PSS)/polyallyl dimethyl ammonium chloride modified reduced graphene oxide(PDDA-rGO)was layer by layer self-assembled on the cotton *** surface morphology and electric property was *** results confirmed the dense membrane of PEDOT:PSS and the lamellar structure of PDDA-rGO on the *** has excellent electrical conductivity and mechanical *** fiber based electrochemical transistor(FECTs)prepared by the composite conductive fiber has a maximum output current of 8.7 mA,a transconductance peak of 10 mS,an on time of 1.37 s,an off time of 1.6 s and excellent switching *** importantly,the devices by layer by layer self-assembly technology opens a path for the true integration of organic electronics with traditional textile technologies and materials,laying the foundation for their later widespread application.

关键词： layer by layer self-assembly fiber based organic electrochemical transistor reduced graphene oxide PEDOT:PSS

Zebrafish for thrombocytopoiesis-and hemostasis-related researches and disorders

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Blood Science 2020年第2期2卷 44-49页

作者： panpan meng Liangliang Wu Qing Lin Yiyue Zhang Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Guangdong Higher Education Institutes Department of Developmental BiologySchool of Basic Medical SciencesSouthern Medical UniversityGuangzhou 510515P.R.China Division of Cell Developmental and Integrative BiologySchool of MedicineSouth China University of TechnologyGuangzhou 510006P.R.China

Platelets play vital roles in hemostasis,inflammation,and vascular *** are also active participants in the immune *** vertebrates,zebrafish have a highly conserved hematopoietic system in the developmental,cellular,functional,biochemical,and genetic levels with *** in zebrafish are functional homologs of mammalian ***,we summarized thrombocyte development,function,and related research techniques in zebrafish,and reviewed available zebrafish models of platelet-associated disorders,including congenital amegakaryocytic thrombocytopenia,inherited thrombocytopenia,essential thrombocythemia,and blood coagulation disorders such as gray platelet *** elegant zebrafish models and methods are crucial for understanding the molecular and genetic mechanisms of thrombocyte development and function,and provide deep insights into related human disease pathophysiology and drug development.

关键词： Animal models Platelet-associated diseases Thrombocytopoiesis Zebrafish

J-shaped association between dietary thiamine intake and the risk of cognitive decline in cognitively healthy,older Chinese individuals

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General Psychiatry 2024年第1期37卷 44-52页

作者： Chengzhang Liu Qiguo meng Yuanxiu Wei Xinyue Su Yuanyuan Zhang panpan He Chun Zhou mengyi Liu Ziliang Ye Xianhui Qin Department of Epidemiology and Biostatistics School of Public HealthAnhui Medical UniversityHefeiAnhuiChina institute of Biomedicine Anhui Medical UniversityHefeiAnhuiChina Division of Nephrology Nanfang HospitalSouthern Medical UniversityNational Clinical Research Center for Kidney DiseaseState Key Laboratory of Organ Failure ResearchGuangdong Provincial Institute of NephrologyGuangdong Provincial Key Laboratory of Renal Failure ResearchGuangzhou Regenerative Medicine and Health Guangdong LaboratoryGuangzhouGuangdongChina

Background The prospective association of dietary thiamine intake with the risk of cognitive decline among the general older adults remains *** To investigate the association between dietary thiamine intake and cognitive decline in cognitively healthy,older Chinese *** The study included a total of 3106 participants capable of completing repeated cognitive function *** nutrient intake information was collected through 3-day dietary recalls and using a 3-day food-weighed method to assess cooking oil and condiment *** decline was defined as the 5-year decline rate in global or composite cognitive scores based on a subset of items from the Telephone Interview for Cognitive *** The median follow-up duration was 5.9 *** was a J-shaped relationship between dietary thiamine intake and the 5-year decline rate in global and composite cognitive scores,with an inflection point of 0.68 mg/day(95%confidence interval(Cl):0.56 to 0.80)and a minimal risk at 0.60-1.00 mg/day of dietary thiamine *** the inflection point,thiamine intake was not significantly associated with cognitive *** the inflection point,each unit increase in thiamine intake(mg/day)was associated with a significant decrease of 4.24(95%Cl:2.22 to 6.27)points in the global score and 0.49(95%Cl:0.23 to 0.76)standard units in the composite score within 5 years.A stronger positive association between thiamine intake and cognitive decline was observed in those with hypertension,obesity and those who were non-smokers(all p<0.05).Conclusions This study revealed a J-shaped association between dietary thiamine intake and cognitive decline in cognitively healthy,older Chinese individuals,with an inflection point at 0.68 mg/day and a minimal risk at 0.60-1.00 mg/day of dietary thiamine intake.

关键词： intake shaped cognitive

Effect of tubastatin A on NLRP3 inflammasome activation in macrophages under hypoxia/ reoxygenation conditions

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World Journal of Emergency Medicine 2024年第4期15卷 289-296页

作者： Hao Li Chang Liu Ying Cui panpan Chang Wei Chong Department of Emergency Medicine the First Hospital of China Medical UniversityShenyang 110001China Trauma Medicine Center Peking University People's HospitalBeijing 100871China Key Laboratory of Trauma and Neural Regeneration Peking UniversityBeijing 100871China National Center for Trauma Medicine of China Beijing 100871China

BACKGROUND:There are currently no effective drugs to mitigate the ischemia/reperfusion injury caused by fluid resuscitation after hemorrhagic shock(HS).The aim of this study was to explore the potential of the histone deacetylase 6(HDAC6)-specific inhibitor tubastatin A(TubA)to suppress nucleotide-binding oligomerization domain-like receptor protein 3(NLRP3)inflammasome activation in macrophages under hypoxia/reoxygenation(H/R)***:The viability of RAW264.7 cells subjected to H/R after treatment with different concentrations of TubA was assessed using a cell-counting kit-8(CCK8)***,2.5μmol/L TubA was used with RAW264.7 cells under H/R ***264.7 cells were divided into three groups,namely the control,H/R,and TubA *** levels of reactive oxygen species(ROS)in the cells were detected using fluorescence *** protein expression of HDAC6,heat shock protein 90(Hsp90),inducible nitric oxide synthase(iNOS),NLRP3,gasdermin-D(GSDMD),Caspase-1,GSDMD-N,and Caspase-1 p20 was detected by western *** levels of interleukin-1β(IL-1β)and IL-18 in the supernatants were detected using enzyme-linked immunosorbent assay(ELISA).RESULTS:HDAC6,Hsp90,and iNOS expression levels were significantly higher(P<0.01)in the H/R group than in the control group,but lower in the TubA group than in the H/R group(P<0.05).When comparing the H/R group to the control group,ROS levels were significantly higher(P<0.01),but significantly reduced in the TubA group(P<0.05).The H/R group had higher NLRP3,GSDMD,Caspase-1,GSDMD-N,and Caspase-1 p20 expression levels than the control group(P<0.05),however,the TubA group had significantly lower expression levels than the H/R group(P<0.05).IL-1βand IL-18 levels in the supernatants were significantly higher in the H/R group compared to the control group(P<0.01),but significantly lower in the TubA group compared to the H/R group(P<0.01).CONCLUSION:TubA inhibited the expression of HDAC6,Hsp90,and iNOS in macrophages

关键词： Hemorrhagic shock Hypoxia/reoxygenation Macrophage NLRP3 Tubastatin A