Results 41 to 50 of about 70,094 (168)

非风险中心区个体风险知觉偏差的机制探索

open access: yes, 2012
近年一系列的现场研究发现,非风险中心区的个体反而比风险中心区的个体表现出更高的风险知觉水平,但目前的风险知觉研究却忽略了对非风险中心区个体风险知觉偏差的关注。这种知觉偏差引发的民众焦虑情绪与恐慌行为,有时需要政府机构花费更多的时间与经费用于应对非风险中心区民众未曾面临的风险。本项目拟综合运用认知行为实验、虚拟现实模拟与现场研究的方法和技术:(1) 考察非风险中心区个体风险知觉偏差的领域特异性;(2) 探索预期体验假说与认知失调理论在解释风险知觉偏差中的内在机制;(3 ...
郑蕊
core  

针刺大都穴治疗中风偏瘫疗效观察 [PDF]

open access: yes, 2016
目的:观察针刺大都穴对中风偏瘫下肢的影响及临床疗效。方法:将72例患者随机分成两组:治疗组37例采用基础穴位配合大都穴治疗;对照组35例采用基础穴位结合神经肌肉电刺激仪治疗,治疗1个月后比较两组的临床疗效。结果:通过下肢Fugl-Meyer量表评分比较,治疗组均优于对照组 ...
林振原, 吴文裕, 吴明霞
core  

考虑复杂山地风加速的架空线路风偏闪络故障分析 附视频

open access: yesDianci bileiqi, 2022
针对近期某省内发生的一起在复杂山地地形下的220 kV输电线路闪络放电故障,结合现场实际数据对故障的情况进行分析。首先依据现场实际地形、杆塔和气象数据,采用未考虑地形风速影响的传统设计计算方法得到线路故障段风偏位移,所得风偏后的放电间距满足导线设计安全距离要求;而后利用自主研发的Transpert输电线路专家系统中的高程数据建立现场实际复杂山地地形的三维模型,通过ANSYS有限元风场仿真得到故障点风速分布,并计算得到地形风速加速影响后的输电线路风偏角,发现考虑山地风速加速后的风偏放电间距小于安全距离 ...
doaj  

Public Preferences on the Economy–Environment Trade‐Off in France, Germany, Great Britain, and the United States

open access: yesPolitics &Policy, Volume 53, Issue 3, June 2025.
ABSTRACT Climate change is increasing pressure on policymakers and the public to face perceived trade‐offs between economic growth and environmental sustainability, but is it possible to fulfill human needs within the ecological limits of the planet? This article investigates how the public prioritizes this trade‐off. We analyze the drivers of citizens'
Soomin Oh, David Hudson, Jennifer Hudson
wiley   +1 more source

农产品市场风险的根源在于信息偏差

open access: yes, 1996
农产品市场风险的根源在于信息偏差许经勇在现实经济社会中,存着的是不完全竞争,以及与此相联系的信息的不完全性,信息的非对称性,或信息偏差,乃至由信息偏差所决定的不确定性与风险性。市场风险的根源归根结蒂在于市场信息偏差。从本质上说,价格之所以能够反映市场..
许经勇
core  

Solar effect on the relationship between tropical cyclone activity over the west of North Pacific and the stratospheric quasi-biennial oscillation(太阳活动、准两年振荡对西北太平洋热带气旋的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2005
通过分析太阳黑子、赤道平流层纬向风与西北太平洋上热带气旋的关系发现,赤道平流层纬向风的准两年振荡与西北太平洋上热带气旋确实具有很好的关系,这种关系受到太阳活动的调控.当太阳黑子为小年时,在赤道纬向风的西风年,西北太平洋上生成的热带气旋较多,强度偏弱;东风年,气旋较少,强度较强.在太阳黑子大年,与小年的情况相反,东风年时热带气旋较多,强度较弱;西风年,气旋较少,强度较强.
TIANRong-xiang(田荣湘)
doaj   +1 more source

Incremental yield of exome sequencing over standard prenatal testing in structurally normal fetuses: systematic review and meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 5, Page 552-559, May 2025.
ABSTRACT Objective To critically review the literature and synthesize evidence on the incremental yield of prenatal exome sequencing (PES) in fetuses with an apparently normal phenotype with a normal G‐banded karyotype or chromosomal microarray (CMA).
A. Sotiriadis   +5 more
wiley   +1 more source

针刺治疗中风偏瘫54例效果观察 [PDF]

open access: yes, 1999
1994年以来,我们采用平补平泻法针刺阳明经穴治疗中风偏瘫54例,收效满意。现报道如下。1材料与方法1.1临床资料本组54例均经临床检查确诊为中风。男35例,女19例。年龄最小28岁,最大84岁,平均61.3岁。病程最短4d,最长9年,平均143d。..
蔡文颖, 黄建军, 赵银龙
core  

Application of artificial intelligence to ultrasound imaging for benign gynecological disorders: systematic review

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 3, Page 295-302, March 2025.
ABSTRACT Objective Although artificial intelligence (AI) is increasingly being applied to ultrasound imaging in gynecology, efforts to synthesize the available evidence have been inadequate. The aim of this systematic review was to summarize and evaluate the literature on the role of AI applied to ultrasound imaging in benign gynecological disorders ...
F. Moro   +8 more
wiley   +1 more source

后悔倾向、后悔反应与风险偏好的关系研究

open access: yes, 2007
后悔和风险认知均是行为金融学的研究热点。本研究将后悔区分为后悔倾向和后悔反应,编制了《后悔倾向问卷》,考察了被试在人格层面上的后悔倾向与风险偏好的关系,同时探讨了被试在行为层面上后悔反应与风险偏好的关系。结果发现,后悔倾向与风险偏好呈负相关 ...
赖志刚, 时勘
core  

Home - About - Disclaimer - Privacy