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The effects of prolonged sitting behavior on resting-state brain functional connectivity in college students post-COVID-19 rehabilitation:A study based on fNIRS technology

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Sports Medicine and Health Science 2024年第3期6卷 287-294页

作者： Xiaocong Yan ying Qin Haifeng Yu Zhenghao Xue Desheng jiang Limin Huang Graduate School Harbin Sport UniversityHarbin150008China College of Sports and Human Sciences Harbin Sport UniversityHarbin150008China

Functional near-infrared spectroscopy(fNIRS)was used to explore the effects of sedentary behavior on the brain functional connectivity characteristics of college students in the resting state after recovering from Corona Virus Disease 2019(COVID-19).Twenty-two college students with sedentary behavior and 22 college students with sedentary behavior and maintenance of exercise habits were included in the analysis;moreover,8 min fNIRS resting-state data were *** on the concentrations of oxyhemoglobin(HbO2)and deoxyhemoglobin(HbR)in the time series,the resting-state functional connection strength of the two groups of subjects,including the prefrontal cortex(PFC)and the lower limb supplementary motor area(LS),as well as the functional activity and functional connections of the primary motor cortex(M1)were *** following findings were demonstrated.(1)Functional connection analysis based on HbO2 demonstrated that in the comparison of the mean functional connection strength of homologous regions of interest(ROIs)between the sedentary group and the exercise group,there was no significant difference in the mean functional strength of the ROIs between the two groups(p>0:05).In the comparison of the mean functional connection strengths of the two groups of heterologous ROIs,the functional connection strengths of the right PFC and the right LS(p?0:0097),the left LS(p?0:0127),and the right M1(p?0:0305)in the sedentary group were significantly *** functional connection strength between the left PFC and the right LS(p?0:0312)and the left LS(p?0:0370)was significantly ***,the functional connection strength between the right LS and the right M1(p?0:0370)and the left LS(p?0:0438)was significantly greater.(2)Functional connection analysis based on HbR demonstrated that there was no significant difference in functional connection strength between the sedentary group and the exercise group(p>0:05)or between the sedentary group and the exerci

关键词： fNIRS COVID-19 Sedentary behavior Resting state College students Functional connectivity

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Effects of transient flow conditions on colloid-facilitated release of decabromodiphenyl ether:Implications for contaminant mobility at e-waste recycling sites

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Eco-Environment & Health 2024年第3期3卷 317-324页

作者： Yueyue Li Zebin Huo Yuqin ying Lin Duan Chuanjia jiang Wei Chen College of Environmental Science and Engineering Ministry of Education Key Laboratory of Pollution Processes and Environmental CriteriaTianjin Key Laboratory of Environmental Remediation and Pollution ControlNankai UniversityTianjin 300350China

Polybrominated diphenyl ethers(PBDEs)are ubiquitous contaminants,especially in the soil and groundwater of contaminated sites and ***,2,20,3,30,4,40,5,50,6,60-decabromodiphenyl ether(BDE-209),one of the most frequently and abundantly detected PBDE congeners in the environment,has recently been designated as a new pollutant subject to rigorous control in ***-facilitated transport is a key mechanism for the release of PBDEs from surface soils and their migration in the aquifer,but the effects of hydrodynamic conditions,particularly transient flow,on colloid-facilitated release of PBDEs are not well ***,we examined the effects of typical transient flow conditions on the release characteristics of colloids and BDE-209 from surface soil collected from an e-waste recycling site by undisturbed soil core leaching tests involving multiple dry–wet cycles(with different drying durations)and freeze–thaw *** observed significant positive correlations between BDE-209 and colloid concentrations in the leachate in both the dry–wet and freeze–thaw leaching experiments,highlighting the critical role of colloids in facilitating BDE-209 ***,colloids mobilized during the dry–wet cycles contained higher contents of BDE-209 than those in the freeze–thaw cycle tests,and the difference was primarily due to the more intensive disintegration of soil aggregates and elution of newly formed inorganic colloidal particles(mainly primary silicate minerals such as quartz and albite)with low BDE-209 content during the freeze–thaw *** findings underscore the necessity of considering transient flow conditions when assessing the fate and risks of PBDEs at contaminated sites.

关键词： Hydrophobic organic contaminants Colloid-facilitated transport Dry-wet cycle Freeze-thaw cycle Undisturbed soil core

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Nitrogen accumulation in a big lake affected by groundwater discharge in Central Yangtze River Basin

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Journal of Earth Science 2024年

作者： Liansong Tang Rui Ma Lin Jingjing ying Liang Xue jiang Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science， School of Environmental Studies and State Key Laboratory of Biogeology and Environmental Geology， China University of Geosciences Changjiang Basin Ecology and Environment Monitoring and Scientific Research Center，Changjiang Basin Ecology and Environment Administration， Ministry of Ecology and Environment

Nitrogen pollution is a major cause of lake eutrophication， garnering global concern for its detrimental impact on lake-water quality. However， the intricate interplay between lakes and groundwater in the accumulation and release of nitrogen remains largely overlooked. Using Honghu Lake as a case study， a large lake in the Yangtze River basin long plagued by nitrogen pollution， this study analyzed the temporal shifts in its water area from 1990 to 2021 using remote-sensing image classification algorithms. From 1990 to 2005， the natural water area of Hong Lake decreased by 72%. The transformation of much of this area into aquaculture zones and agricultural lands has led to a substantial influx of pollutants， culminating in the degradation of the water quality. Despite efforts to restore the natura water area post ban on aquaculture activities， the water quality of the lake remains compromised， indicating other pollution sources menacing the ecosystem of the lake. Field investigations conducted in 2011 and 2019 unveiled substantially higher concentrations of NH4-N and NO3-N in groundwater compared to lake water， with a discernible upward trajectory in pollutant levels over time. The18O mass-balance model was employed to assess groundwater flow dynamics， revealing an estimated lacustrine groundwater discharge of 0.71×106m3/d， underscoring the substantial annual influx of pollutants into the lake via groundwater pathways. Through a comprehensive analysis of surface water and groundwater quality trends within the study area， this research provides novel evidence implicating groundwater as a formidable contributor to the persistent nitrogen pollution afflicting Honghu Lake.

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Enhancing energy storage efficiency in lead-free dielectric ceramics through relaxor and lattice strain engineering

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Journal of Materiomics 2024年第6期10卷 1196-1205页

作者： Xuetian Gong Chao Zhang Dong Su Wenrong Xiao Fangjie Cen ying Yang Shenglin jiang Jing Wang Kanghua Li Guangzu Zhang School of Integrated Circuits Engineering Research Center for Functional Ceramics MOE and Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhanHubei430074China College of Chemnistry and Materials Science Hebei UniversityBaodingHebei071002China Key Lab of Functional Materials for Electronic Information(B) Ministry of EducationWuhanHubei430074China

Dielectric capacitors with high power density and fast charge-discharge speed play an essential role in the development of pulsed power *** increased demands for miniaturization and practicality of pulsed power equipment also necessitate the development of dielectric materials that possess high energy density while maintaining ultrahigh efficiency(η).In particular,ultrahigh efficiency signifies minimal energy loss,which is essential for practical applications but challenging to effectively ***,we demonstrate a strategy of incorporating heterovalent elements into Ba(Zr_(0.1)Ti_(0.9))O_(3),which contributes to achieving relaxor ferroelectric ceramics and reducing lattice strain,thereby improving the comprehensive energy storage ***,optimal energy storage performance is attained in 0.85Ba(Zr_(0.1)Ti_(0.9))O_(3)-0.15Bi(Zn_(2/3)Ta_(1/3))O_(3)(BZT-0.15BiZnTa),with an ultrahighηof 97.37%at 440 kV/cm(an advanced level in the lead-free ceramics)and an excellent recoverable energy storage density(Wrec)of 3.74 J/cm^(3).Notably,the BZT-0.15BiZnTa ceramics also exhibit exceptional temperature stability,maintaining fluctuations in Wrec within∼10%andηconsistently exceeding 90% across the wide temperature range of−55℃ to 160℃,and under a high electric field of 250 kV/*** these features demonstrate that the relaxor and lattice strain engineering strategies have been successful in achieving high-performance lead-free ceramics,paving the way for designing high-efficiency dielectric capacitors with a wide temperature range.

关键词： Energy storage Relaxor ferroelectrics Lead-free ceramics Lattice strain engineering

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基于模板匹配和SVM的草图符号自适应识别方法

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计算机学报 2009年第2期32卷 252-260页

作者：姜映映田丰王绪刚戴国忠中国科学院软件研究所人机交互技术与智能信息处理实验室北京100190 中国科学院软件研究所计算机科学国家重点实验室北京100190

在草图符号的自适应学习中,不同用户的训练样本数量可能不同,保持在不同样本数量下良好的学习效果成为需要解决的一个重要问题.提出一种自适应的草图符号识别方法,该方法采用与训练样本个数相关的分类器组合策略将模板匹配方法和SVM统... 详细信息

在草图符号的自适应学习中,不同用户的训练样本数量可能不同,保持在不同样本数量下良好的学习效果成为需要解决的一个重要问题.提出一种自适应的草图符号识别方法,该方法采用与训练样本个数相关的分类器组合策略将模板匹配方法和SVM统计分类方法进行了高效组合.它通过利用支持小样本学习的模板匹配方法和支持大量样本学习的SVM方法,并同时利用草图符号中的在线信息和离线信息,实现了不同样本个数下自适应的符号学习和识别.基于该方法,文中设计并实现了支持自适应识别的草图符号组件.最后,利用扩展的PIBG Toolkit开发出原型系统Idea Note.评估表明,该方法可以在24类草图符号分别使用1到20个训练样本时具有较高的识别正确率和较好的时间性能.

关键词：符号识别自适应学习模板匹配 SVM 分类器组合组件

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Three-Component Transformation of CO_(2),Propargyl Alcohols and Secondary Amines intoβ-Oxopropylcarbamates Promoted by a Noble Metal-Free Metal–Organic Framework Catalyst

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CCS Chemistry 2024年第9期6卷 2333-2345页

作者： Xiao-Lei jiang Fang-Yu Ren ying Shi Yao Xie Sheng-Li Hou Bin Zhao Department of Chemistry Key Laboratory of Advanced Energy Material Chemistry(Ministry of Education)MOERenewable Energy Conversion and Storage Center(RECAST)Nankai UniversityTianjin 300071 College of Chemistry and Chemical Engineering Yantai UniversityYantai 264010

The three-component reaction of CO_(2),propargyl alcohols,and secondary amines frequently applies noble metal or homogeneous catalysts,therefore it is necessary and important to seek a recyclable catalyst without noble metals for this reaction,despite the multitude of ***,a unique framework{[Ce3(Cu4I4)2(CNA)8(DMF)8](NO3)}n(CuCe-CNA)with two kinds of metal cluster nodes[Ce3]and[Cu4I4]was synthesized,displaying high thermal and chemical ***-CNA-300 was obtained by removing the coordinated DMF molecules with[Ce3]cluster at 300°C,in which more metal sites are exposed and the pores are enlarged,but the three-dimensional framework still remains ***-CNA-300 can effectively catalyze the three-component reaction of 2-methyl-3-butyn-2-alcohol,CO_(2),and pyrrolidine toβ-oxopropylcarbamates with a yield of 98%under mild conditions,and the catalytic activity is higher than those of noble metal ***,CuCe-CNA-300 exhibits high catalytic efficiency for various kinds of propargyl alcohols and secondary amines,and also shows good *** studies suggest that theα-alkylidene cyclic carbonates derived from the cycloaddition of propargyl alcohols and CO_(2) are the intermediates,which further react with secondary amines through ammonolysis reaction to generateβ-***,this work may open a new avenue for the one-pot transformation of CO_(2) with two or more components into value-added chemicals activated by noble metal-free metal–organic frameworks catalysts.

关键词： three-component reaction CO_(2)conversion metal-organic frameworks noble metal-free catalyst synergistic catalysis

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Post-transcriptional regulation of grain weight and shape by the RBP-A-J-K complex in rice

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Journal of Integrative Plant Biology 2024年第1期66卷 66-85页

作者： Ding Ren Hui Liu Xuejun Sun Fan Zhang Ling jiang ying Wang Ning jiang Peiwen Yan Jinhao Cui Jinshui Yang Zhikang Li Pingli Lu Xiaojin Luo State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology School of Life SciencesFudan UniversityShanghai 200438China State Key Laboratory of Crop Stress Adaptation and Improvement School of Life SciencesHenan UniversityKaifeng 475004China MOE Key Laboratory of Crop Physiology Ecology and Genetic Breeding College of AgronomyJiangxi Agricultural UniversityNanchang 330045China State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural Sciences(CAAS)Beijing 100081China College of Agronomy Anhui Agricultural UniversityHefei 230036China

RNA-binding proteins(RBPs)are components of the post-transcriptional regulatory system,but their regulatory effects on complex traits remain *** an integrated strategy involving map-based cloning,functional characterizations,and transcriptomic and population genomic analyses,we revealed that RBP-K(LOC_Os08g23120),RBP-A(LOC_Os11g41890),and RBP-J(LOC_Os10g33230)encode proteins that form an RBP-A-J-K complex that negatively regulates rice yield-related *** of the RBP-A-J-K complex indicated RBP-K functions as a relatively non-specific RBP chaperone that enables RBP-A and RBP-J to function ***,RBP-J most likely affects GA pathways,resulting in considerable increases in grain and panicle lengths,but decreases in grain width and *** contrast,RBP-A negatively regulates the expression of genes most likely involved in auxin-regulated pathways controlling cell wall elongation and carbohydrate transport,with substantial effects on the rice grain filling process as well as grain length and ***,RBP-K is relatively ancient and highly conserved,whereas RBP-J and RBP-A are more ***,the RBP-A-J-K complex may represent a typical functional model for many RBPs and protein complexes that function at transcriptional and post-transcriptional levels in plants and animals for increased functional consistency,efficiency,and versatility,as well as increased evolutionary *** results clearly demonstrate the importance of RBP-mediated post-transcriptional regulation for the diversity of complex ***,rice grain yield and quality may be enhanced by introducing various complete or partial loss-of-function mutations to specific RBP genes using clustered regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated protein 9 technology and by exploiting desirable natural tri-genic allelic combinations at the loci encoding the components of the RBP-A-J-K complex through marker-assisted select

关键词： GL11 grain weight and shape post-transcriptional regulation RNA-binding proteins

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Study and application of PS-wave pre-stack migration in HTI media and an anisotropic correction method

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Applied Geophysics 2018年第1期15卷 57-68,148页

作者： YanLi-Li Cheng Bing-Jie Xu Tian-Ji jiang ying-ying Ma Zhao-Jun and Tang Jian-Ming State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Chengdu 610059 China College of Earth Science Chengdu University of Technology Chengdu 610059 China College of Geophysics Chengdu University of Technology Chengdu 610059 China Exploration＆ Production Institute Southwest Oil ＆ Gas Company SINOPEC Chengdu 610041 China Key Lab of Multiple Wave Seismic Technology SINOPEC Chengdu 610041 China Southwest oil and gas Branch Company. SINOPEC Chengdu 610041 China

Anisotropy correction is necessary during the processing of converted PS- wave seismic data to achieve accurate structural imaging, reservoir prediction, and fracture detection. To effectively eliminate the adverse effects of S-wave splitting and to improve PS- wave imaging quality, we tested methods for pre-stack migration imaging and anisotropic correction of PS-wave data. We based this on the propagation rules of seismic waves in a horizontal transverse isotropy medium, which is a fractured medium model that reflects likely subsurface conditions in the field. We used the radial （R） and transverse （T） components of PS-wave data to separate the fast and slow S-wave components, after which their propagation moveout was effectively extracted. Meanwhile, corrections for the energies and propagation moveouts of the R and T components were implemented using mathematical rotation. The PS-wave imaging quality was distinctly improved, and we demonstrated the reliability of our methods through numerical simulations. Applying our methods to three-dimensional and three-component seismic field data from the Xinchang-Hexingchang region of the Western Sichuan Depression in China, we obtained high-quality seismic imaging with continuous reflection wave groups, distinct structural features, and specific stratigraphic contact relationships. This study provides an effective and reliable approach for data processing that will improve the exploration of complex, hidden lithologic gas reservoirs.

关键词： HTI media PS-wave pre-stack time migration anisotropic correction Xinchang-Hexingchang region the Western Sichuan Depression

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内侧隔核胆碱能神经元参与SNI神经病理性疼痛大鼠模式分离障碍

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中国疼痛医学杂志 2019年第9期25卷 648-654页

作者：江颖颖郑杰伊鸣首都医科大学北京市神经外科研究所北京100070 北京大学神经科学研究所北京大学基础医学院神经生物学系教育部/国家卫生健康委员会神经科学重点实验室北京100191

目的:研究部分神经损伤(spared nerve injury,SNI)神经病理性疼痛大鼠导致模式分离(pattern separation)障碍的机制。方法:实验分为两部分,第一部分实验大鼠分为两组:假手术(sham SNI)组、SNI组;第二部分实验大鼠分为两组:假损毁、SAP... 详细信息

目的:研究部分神经损伤(spared nerve injury,SNI)神经病理性疼痛大鼠导致模式分离(pattern separation)障碍的机制。方法:实验分为两部分,第一部分实验大鼠分为两组:假手术(sham SNI)组、SNI组;第二部分实验大鼠分为两组:假损毁、SAP损毁。首先制作SNI神经病理性疼痛模型,之后用八臂迷宫进行模式分离实验来比较sham SNI和SNI实验组大鼠的空间认知水平。此外用SAP(192 IgG-saporin)的方式损毁内侧隔核(medial septum,MS)内的胆碱能神经元,用八臂迷宫来比较损毁组和对照组大鼠的模式分离变化。结果:SNI组大鼠在八臂迷宫中的正确率明显低于sham SNI组,并且SNI导致内侧隔核内的胆碱能神经元数目降低,而损毁MS内胆碱能神经元后大鼠八臂迷宫的正确率明显低于假损毁组。结论:SNI神经病理性疼痛导致模式分离障碍可能与内侧隔核中的胆碱能神经元有关。

关键词：神经病理性疼痛模式分离空间认知内侧隔核胆碱能神经元

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Al-doped ZnO/WO_(3) heterostructure films prepared by magnetron sputtering for isopropanol sensors

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Rare Metals 2024年第1期43卷 247-256页

作者： Wei-Xiang Gao Xue-Ting Chang Xiao-Jie Zhu Jun-Feng Li ying-Chang jiang Dong-Sheng Wang Chuan-Xiao Yang Shi-Bin Sun College of Logistics Engineering Shanghai Maritime UniversityShanghai 201306China College of Ocean Science and Engineering Shanghai Maritime UniversityShanghai 201306China Institute of Logistics Science and Engineering Shanghai Maritime UniversityShanghai 201306China

Metal oxide semiconductors(MOSs) are ideal sensing materials for detecting volatile organic compounds due to their low cost, diversity, high stability, and ease of production. However, it remains a grand challenge to develop the MOSs-based gas sensors for sensing isopropanol with desired performance via a simple, effective,and controllable method. Herein, we reported the preparation of the Al-doped Zn O(AZO)/WO_(3) heterostructure films by directly depositing the AZO coating onto the WO_(3) coating using a strategy of magnetron sputtering. The AZO/WO_(3) heterostructure films were constructed by numbers of irregular nanoparticles that were interconnected with each other. The AZO/WO_(3) heterostructure films-based gas sensors exhibited excellent isopropanolsensing performance with high response, promising selectivity, low detection limit, fast response rate, wide detection range, and ideal reproducibility. The promising isopropanol-sensing performance of the AZO/WO_(3) heterostructure films arises mainly from their high uniformity, unique microstructures with high surface roughness,and the construction of the heterostructure between the AZO and WO_(3) coatings. This work provides a versatile approach to prepare the MOSs-based heterostructure films for assembling the gas sensors.

关键词： Metal oxide semiconductors Gas sensors Aldoped ZnO/WO_(3) Heterostructure films Isopropanol Magnetron sputtering

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