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Association between central obesity and executive function as assessed by stroop task performance:A functional near-infrared spectroscopy study

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Journal of Innovative Optical Health Sciences 2018年第1期11卷 37-46页

作者： zhangyan deng Qin Huang Jiaai Huang Weixia Zhang Changzhu Qi Xia Xu Graduate School Wuhan Sports University Wuhan 430079P.R.China College of Health Science Wuhan Sports University Wuhan 430079P.R.China Hubei Key Laboratory of Exercise Training and Monitoring Wuhan Sports University 461 Luoyu Road Wuhan 430079P.R.China

Recent studies have suggested a link between executive function(EF)and *** oftenadopt body mass index(BM),which reflects the distribution of subcutaneous fat,as the solemarker of obesity;however,BMI is inappropriate to distinguish central obesity,which indicatesthe centralized distribution of visceral *** fat compared with subcutaneous fat repre-sents greater relative lipid turnover and may increase the risk of cognitive decline in older ***,the relationship between EF and central obesity is largely unknown,particularly inyoung ***,we used waist circumference(WC)as a marker of central obesity andinvestigated diferent sensitivities between BMI and WC in the brain function.A total of 26healthy young adults(aged 18-25 years;42%female)underwent functional near-infrared spec-troscopy *** was assessed using the Stroop task,which is a classical measurementof EF.A significant Stroop effect was observed in the behavioral and hemodynamic ***,we observed that behavioral interference on the Stroop task varied much more insubjects with higher BMI and WC than those subjects with *** BMI and WC wereassociated with a decreased hemodynamic response during the Stroop task specifically in the pre-frontal cortex(PFC).Compared to BMI,WC was more closely connected with inhibitory controland revealed right lateralized PFC *** findings suggest that WC is a reliable indicatorof brain function in young adults and propose a relationship bet ween EF and central obesity.

关键词： Executive function central obesity fNIRS young adult

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基于双加工理论的大学生篮球运动员道德判断:抽象推理还是情绪控制

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科学通报 2020年第19期65卷 2010-2020页

作者：邓章岩王栋蔡季伦姜先勇陈作松上海交通大学体育系上海200240

为了探索体育参与对个体道德判断的影响,厘清大学生运动员与非运动员之间道德判断加工机制的差异.共选取了30名在校大学生(包括15名国家一级篮球运动员)作为研究被试,采用功能性近红外光谱技术(fNIRS Devices 1100, fNIR Devices LLC,包... 详细信息

为了探索体育参与对个体道德判断的影响,厘清大学生运动员与非运动员之间道德判断加工机制的差异.共选取了30名在校大学生(包括15名国家一级篮球运动员)作为研究被试,采用功能性近红外光谱技术(fNIRS Devices 1100, fNIR Devices LLC,包括4个光源与10个探测器,共16个监测通道)监测被试完成道德两难任务时的前额叶激活情况.道德两难任务包括个人与非个人两种情境.结果表明:(1)相较于个人情境,被试总体在非个人情境中的道德判断更为功利.(2)运动员被试在进行道德判断时右背外侧前额叶相关通道(通道13、14和15)的激活水平显著高于非运动员,且出现峰值的时间较早,左背外侧前额叶相关通道(通道3)的激活水平显著低于非运动员.可见,运动员能够更好地控制两难任务中的情绪反应.

关键词：道德判断大学生篮球运动员前额叶情绪控制

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Reduction of nitrate from groundwater:powder catalysts and catalytic membrane

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Journal of Environmental Sciences 2003年第5期15卷 600-606页

作者： CHENYing-xu zhangyan LIUHong-yuan DepartmentofEnvironmentalEngineering ZhejiangUniversityHangzhou310029China DepartmentofCivilEngineering ZheiiangUniversityHangzhou310027China CollegeofCivilEngineeringandArchitecture ZhejiangUniversityofTechnologyHangzhou310014China

The reduction of nitrate contaminant in groundwater has gained renewed and intensive attention due to the environmental problems and health risks. Catalytic denetrification presents one of the most promising approaches for the removal of nitrate from water. Catalytic nitrate reduction from water by powder catalysts and catalytic membrane in a batch reactor was studied. And the effects of the initial concentration, the amounts of catalyst, and the flux H 2 on the nitrate reduction were also discussed. The results demonstrated that nitrate reduction activity and the selectivity to nitrogen gas were mainly controlled by diffusion limitations and the mass transfer of the reactants. The selectivity can improved while retaining a high catalytic activity under controlled diffusion condition or the intensification of the mass transfer, and a good reaction condition. The total nitrogen removal efficiency reached above 80%. Moreover, catalytic membrane can create a high effective gas/liquid/solid interface, and show a good selectivity to nitrogen in comparative with the powder catalyst, the selectivity to nitrogen was improved from 73 4% to 89 4%.

关键词： Pd Cu catalysts hydrogenation catalytic membrane nitrate ammonium

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THREE-DIMENSIONAL MEAN AND TURBULENCE CHARACTERISTICS OF AN IMPINGING DENSITY JET IN A CONFINED CROSSFLOW IN NEAR FIELD

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Journal of Hydrodynamics 2004年第6期16卷 737-742页

作者： FANJing-yu WANGDao-zeng zhangyan ShanghaiInstituteofAppliedMechematicsandMechanics ShanghaiUniversityShanghai200072China

The three-dimensional mean and turbulence characteristics of an impingingdensity jet in a confined cross-flow were numerically investigated using the RNG turbulence *** comparison of the subregion structures and gross features between the numerical results and theexperimental data show good agreement. The velocity, Turbulent Kinetic Energy (TKE) andconcentration distributions of the impinging jet in near field were obtained and analyzed. Theresults indicate that the flow and concentration fields of the impinging jet in the crossflowexhibit distinguished three-dimensionality in the near field. There exist upstream wail vortices anddownstream wall jet zones in the impinging region, and the TKE and concentration decays areasymmetrical in relation to the stagnation point. The lateral concentration distribution range inthe impinging region spreads considerably. The enhanced entrainment and mixing of the impinging jetin the confined crossflow are mostly associated with the impinging action and lateral expansion inthe impinging region. The presence of the bottom wall restrains the formation of the span-wiserollers in the transverse jet region and vertical entrainment and mixing in the impinging region andthe transition re-gioa

关键词： impinging jet crossflow entrainment mixing

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STRATEGIC ENVIRONMENT ASSESSMENT ON LAND-USE PLANNING-A Case Study of Changchun Economic and Technological Zone

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Chinese Geographical Science 2002年第3期12卷 262-267页

作者： zhangyan SHANGJin－cheng 等 ChangchunInstiuteofGeography theChineseAcademyofSciencesChangchun130021P.R.China DepartmentofEnvironmentSciences NortheastNormalUniversityChangchun130024P.R.China

The study centers on the necessity,t he workflowand the synthetically in tegrated methods(Principal Compo-nentAnalysis(PCA),AndyticalHierarchy Process(AHP)andFuzzy Comprerhensive Evaluatio n(FCE))ofstrategic environ-ment assessment (SEA)on land-use *** whole article includes three main parts:firstly,some attribute database,graphic-base and the spatial transform matrix,which reflect the change of regional land-use pattern,can be ob-tained by GIS technique;secondly,a dopting fitting method of trend-sur face analysis will convert environm ent monitoring data from scattered spots to regular control spots,based on which we can p erform regional environment impact assess-ment;finally,Changchun Economic a nd Technological Developmen Zone is chosen as a case study on land-use pla *** those efforts the results ma y be obtained as follows:1)according to transform matrix,the p ossibility of transforma-tion from one land-use to another can be obtained after the planning is carried out;2)environment quality would change as a result of the change of land-use p attern;3)the SEA on land-use plan is an effecti ve tool to make land-use pattern more reasonable.

关键词： land-use planning strategic environment assessment synthetically integratedmethods

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Relationship Among Reserve Ratio, Government Spending and Economic Growth

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Journal of China University of Mining and Technology 2005年第2期15卷 157-162页

作者： zhangyan ZHOUSheng-Wu SchoolofScience ChinaUniversityofMining＆TechnologyXuzhouJiangsu221008China

The relationship among reserve ration, government spending and economic growth was analyzed. A monetary endogenous growth model is well developed by taking into account the growth-enhancing effects of re- serve-augmenting seigniorage. If the government spends all the seigniorage revenue on the provision of a public input which has positive externality on the private sector’s production, some results to be utterly different from Bronx’s have been obtained: the economy has a unique saddle-balanced growth path, but it has nothing to do with reserve ratio. However, the higher reserve ratio, the faster speed of economic convergence.

关键词： economic growth government spending seigniorage revenue reserve ratio

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New construction for expert system based on innovative knowledge discovery technology

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Science in China(Series F) 2007年第1期50卷 29-40页

作者： YANG BingRu SONG Wei XU zhangyan School of Information Engineering University of Science and Technology Beijing Beijing 10083 China

Knowledge acquisition Is the bottleneck of expert system. To solve this problem, KD （D＆K）, which is a comprehensive knowledge discovery process model coopersting both database and knowledge base, and related technology are proposed. Then based on KD （D＆K） and related technology, the new construction of Expert System based on Knowledge Discovery （ESKD） Is proposed. As the key knowledge acqulsltlon component of ESKD, KD （D＆K） Is composed of KDD＊ and KDK＊. KDD＊- the new process model based on double bases cooperating mechanism; KDK＊- the new process model based on double-basis fusion mechanism are Introduced, respectively. The overall framework of ESKD Is proposed. Some sub-systems and dynamic knowledge base system are discussed. Flnelly, the effectiveness and advantages of ESKD are tested In a real-world agriculture database. We hope that ESKD may be useful for the new generation of expert systems.

关键词： knowledge discovery double bases cooperating mechanism double-basis fusion mechanism KD (D&K) expert system ESKD

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Relationship between ATPase activity and conjugated polyamines in mito-chondrial membrane from wheat seedling roots under osmotic stress

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Journal of Environmental Sciences 2004年第5期16卷 712-716页

作者： LIUHuai-pan LIUJun zhangyan-yan LIUYou-liang KeyLaboratoryofCropGrowthRegulation MinistryofAgricultureCollegeofLifeScienceNanjingAgricultureUniversityNanjing210095China

The effects of osmotic stress on the ATPase activity, the contents of —SH group and conjugated polyamines in mitochondrial membrane from wheat seedling [Triticum aestivum L. cv. Yumai No.18(drought-tolerant) and cv. Yumai No.9(drought-sensitive)] roots were investigated. The results showed that ATPase activity and —SH group content decreased with polyethylene glycol(PEG) 6000(-0.55 MPa) treatment for 7 d, in concert with the decrease of the ratio of noncovalently conjugated spermidine(NCC-Spd)/noncovalently conjugated putrescine(NCC-Put) and increase of the covalently conjugated putrescine(CC-Put). Osmotic stress injury to Yangmai No.9 seedlings was alleviated greatly with 1 mmol/L exogenous spermidine(Spd), in concert with marked increases of the ratio of NCC-Spd/NCC-Put, —SH group contents and ATPase activity in mitochondrial membrane. Under osmotic stress, the concomitant treatment of Yumai No.18 seedlings with methylglyoxyl bis(guanylhydrazone) (MGBG), an inhibitor of S-adenosyl methionine decarboxylase(SAMDC), and phenanthrolin (o-Phen), an inhibitor of transglutaminase(TGase), caused a significant decrease of the ratio of NCC-Spd / NCC-Put, CC-Put contents, respectively, in concert with the marked decreases of ATPase activity, —SH group content and its tolerance to osmotic stress. All the results above suggested that osmotic stress tolerance of wheat seedlings was associated with the ATPase activity, the contents of —SH group, NCC-Spd and CC-Put in mitochondrial membrane.

关键词： ATPase conjugated polyamines mitochondria osmotic stress wheat(Triticum aestivum L.)

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Top—Higgs ht^0 and the Process γγ→ZZ

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Communications in Theoretical Physics 2003年第6期39卷 681-684页

作者： YUEChong-Xing ZHAOXian-Lin zhangyan-Ming LIHong DepartmentofPhysics LiaoningnormaluniversityDalian116029China DepartmentofPhysics HenanEducationInstituteZhengzhou450014China CollegeofPhysicsandInformationEngineering HenannormalUniversityXinxiang453002China

In the context of topcolor-assisted technicolor(TC2) models,we calculate the s-channel contributions of the top-Higgs ht^0 to the process γγ→*** find that,for reasonable ranges of the paramters,ht^0 can give significant contributions to this process,when the top-Higgs mass approximately equals to the center-of-mass energy s and the free parameter ε=0.01,the cross section can reach 161 *** may be detected in the γγ collisions based on the future e+e- ***,the process γγ→ZZ may be used to probe the top-Higgs and further test TC2 models in γγ collisions.

关键词： TC2模型粒子物理学希格斯介子 Higgs介子横截面相互作用 QCD 量子色动力学夸克

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On Urban Heat Island of Beijng Based on Landsat TM Data

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Geo-Spatial Information Science 2006年第4期9卷 293-297页

作者： JIANG zhangyan CHEN Yunhao LI Jing College of Resources Science and Technology Beijing Normal University 19 Xinjiekouwai Street Beijing 100875 China 不详

Land surface temperature (LST) of Beijing area was retrieved from Landsat TM thermal band data utilizing a radiative transfer equation and the urban heat island (HUI) effects of Beijing and its relationship with land cover and normalized difference vegetation index (NDVI) were discussed. The result of LST showed that the urban LST was evidently higher than the suburban one. The average urban LST was found to 4.5 ℃ and 9 ℃ higher than the suburban and outer suburban temperature, respectively, which demonstrated the prominent UHI effects in Beijing. Prominent negative correlation between LST and NDVI was found in the urban area, which suggested the low percent vegetation cover in the urban area was the main cause of the urban heat island.

关键词： land surface temperature Landsat TM radiative transfer equation urban heat island

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