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Lifestyle behaviors,serum metabolites and high myopia:Mendelian randomization and mediation analysis
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作者 Nian-En Liu Xiao-Tong Xu Xiao-Bing Yu 《International Journal of Ophthalmology(English edition)》 2026年第1期140-148,共9页
AIM:To explore the causal relationship between several possible behavioral factors and high myopia(HM)using multivariable Mendelian randomization(MVMR)approach and to find the mediators among them with mediation analy... AIM:To explore the causal relationship between several possible behavioral factors and high myopia(HM)using multivariable Mendelian randomization(MVMR)approach and to find the mediators among them with mediation analysis.METHODS:The causal effects of several behavioral factors,including screen time,education time,time spent outdoors,and physical activity,on the risk of HM using univariable Mendelian randomization(MR)and MVMR analyses were first assessed.Genome-wide association study summary statistics of serum metabolites were also used in mediation analysis to determine the extent to which serum metabolites mediate the effects of behavioral factors on HM.RESULTS:MR analyses indicated that both increased time spent outdoors and a higher frequency of moderate physical activity significantly reduced the risk of HM.Further MVMR analysis confirmed that moderate physical activity independently contributed to a lower risk of HM.Additionally,MR analyses identified 13 serum metabolites significantly associated with HM,of which 12 were lipids and one was an amino acid derivative.Mediation analysis revealed that six lipid metabolites mediated the protective effects of moderate physical activity on HM,with the highest mediation proportion observed for 1-(1-enyl-palmitoyl)-GPC(p-16:0;30.83%).CONCLUSION:This study suggests that in addition to outdoor time,moderate physical activity habits may have an independent protective effect against HM and pointed to lipid metabolites as priority targets for the prevention due to low physical activity.These results emphasize the importance of physical activity and metabolic health in HM and underscore the need for further study of these complex associations. 展开更多
关键词 high myopia physical activity serum metabolites multivariable Mendelian randomization mediation analysis
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Association between asthma and myopia:the NHANES database and Mendelian randomization analysis
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作者 Ya-Jing Zheng Ji-Fa Kuang +1 位作者 Fei-Lan Chen Wen-Bin Huang 《International Journal of Ophthalmology(English edition)》 2026年第1期132-139,共8页
AIM:To comprehensively assess the relationship between asthma and myopia based on the National Health and Nutrition Examination Survey(NHANES)database combined with Mendelian randomization(MR).METHODS:Initially,20497 ... AIM:To comprehensively assess the relationship between asthma and myopia based on the National Health and Nutrition Examination Survey(NHANES)database combined with Mendelian randomization(MR).METHODS:Initially,20497 subjects from the complete questionnaire cycle in the NHANES database from 2005 to 2008 were included.By exclusion criteria,8460 subjects were screened with 1676 myopia samples and 6784 control samples.Subsequently,baseline characteristics,association analyses,risk stratification analyses,and receive operating characteristic curve(ROC)were used to investigate the associations between covariates and myopia.Then,the causal relationship was explored in depth by MR analysis,and was estimated the reliability by sensitivity analyses and directionality tests.RESULTS:Baseline characteristics illustrated a significant difference between myopia and controls for both asthma and covariates(excluding gender;P<0.05).The results in all three models indicated that asthma was strongly associated with myopia and the effect on myopia was not significantly confounded by other covariates[model 3:odd ratio(OR)=1.31;95%CI=1.07-1.62;P=0.0133].The risk stratification analysis again verified that asthma remained strongly associated with myopia and was a risk factor for myopia(P<0.05,OR>1).ROC proved that the model was accurate in its prediction[area under curve(AUC)=0.7].Subsequently,the causal relationship between them was statistically significant(P<0.05)according to the inverse variance weighted(IVW)method in MR.Scatterplot showed that asthma and myopia had significant positive causality and were not affected by confounders.Forest plot displayed an increasing risk of myopia on asthma(OR>1).The funnel plot demonstrated compliance with Mendel’s second law.Sensitivity analysis and directional analysis further confirmed the confidence of the MR analysis results and a unidirectional causal relationship between them.CONCLUSION:A significant association and causality between asthma and myopia is found through the NHANES database and MR analysis,which is important implications for public health policy development and clinical practice. 展开更多
关键词 ASTHMA MYOPIA National Health and Nutrition Examination Survey Mendelian randomization
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融合RANSAC的改进DBSCAN算法提取钢拱桥拱肋线形
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作者 潘国兵 赵雪妍 +2 位作者 吴畏 金晓东 虞洪兵 《科学技术与工程》 北大核心 2025年第21期9148-9157,共10页
钢拱桥的线形监测是桥梁健康监测系统的重要组成部分。运用三维激光扫描技术,融合随机抽样一致(random sample consensus,RANSAC)算法对传统的具有噪声的基于密度的聚类方法(density-based spatial clustering of applications with noi... 钢拱桥的线形监测是桥梁健康监测系统的重要组成部分。运用三维激光扫描技术,融合随机抽样一致(random sample consensus,RANSAC)算法对传统的具有噪声的基于密度的聚类方法(density-based spatial clustering of applications with noise,DBSCAN)算法进行改进,对钢拱桥拱肋线形进行提取。三维激光点云数据具有全面性和细节体现的优势,能够完整地呈现桥梁结构的形状和变形信息,融合RANSAC的改进DBSCAN算法根据钢拱桥结构特征对聚类结果进行约束,能够很好地实现删除离散点及桥面、横撑、横联和腹杆部分的点云这一目的。根据融合RANSAC的改进DBSCAN算法提取出的点云进行关键点拟合,与人工提取结果进行对比,拱肋关键点提取误差均在毫米级,最大误差为9.2 mm,最小误差为0.1 mm,此提取方法能够更加准确有效地完成钢拱桥线形提取,使线形提取精度达到毫米级,大大降低了人力成本和时间成本,对钢拱桥的复杂结构有更好的鲁棒性,能很好地适应实际生产需求。 展开更多
关键词 三维激光 线形监测 ransac算法 改进DBSCAN算法
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基于DBSCAN的改进RANSAC点云平面拟合算法 被引量:4
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作者 叶锦华 林旭敏 吴海彬 《湖南大学学报(自然科学版)》 北大核心 2025年第2期76-87,共12页
针对随机采样一致性(random sample consensus,RANSAC)算法对含有噪声的点云数据进行平面拟合时效果不佳和容易产生误识别的问题,对算法进行改进.通过基于密度的噪声应用空间聚类(density-based spatial clustering of applications wit... 针对随机采样一致性(random sample consensus,RANSAC)算法对含有噪声的点云数据进行平面拟合时效果不佳和容易产生误识别的问题,对算法进行改进.通过基于密度的噪声应用空间聚类(density-based spatial clustering of applications with noise,DBSCAN)算法改变RANSAC算法初始点集合的选择策略,并使用主成分分析法(principal component analysis,PCA)计算点云各点法向量,以点到平面距离以及点的法向量与平面法向量夹角两个约束条件同时作为RANSAC算法平面拟合模型内点判定的准则.采用无噪声与分别含有300个噪声点和500个噪声点的点云仿真数据进行测试,本文算法拟合结果均接近理论值且内点距离标准差分别为1.007×10-8、0.003、0.007,优于RANSAC算法.采用实际工件点云数据在两种工况场景下进行测试,本文算法拟合平面内点比率相对于传统RANSAC算法分别提高24.7%和24.6%,平面提取完整度及准确率同样优于RANSAC算法.仿真模拟及实例分析证明了本文算法的有效性. 展开更多
关键词 点云平面拟合 随机采样一致性 噪声 密度聚类 主成分分析
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基于RANSAC改进算法的连接器位姿检测
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作者 张硕 史玲玲 +2 位作者 王威威 金鑫 李忠新 《电子测量技术》 北大核心 2025年第12期137-145,共9页
连接器的多针对接装配过程中,如果不能准确获得零件的位置和姿态,将很可能导致连接器对接任务失败,甚至造成插针弯曲或零件结构损坏。然而受图像噪声、孔内加工痕迹、孔深导致失焦以及孔壁阴影等因素的干扰,在进行孔的检测工作时难以精... 连接器的多针对接装配过程中,如果不能准确获得零件的位置和姿态,将很可能导致连接器对接任务失败,甚至造成插针弯曲或零件结构损坏。然而受图像噪声、孔内加工痕迹、孔深导致失焦以及孔壁阴影等因素的干扰,在进行孔的检测工作时难以精准地获取完整精确的圆形轮廓,从而对连接器位姿检测精度产生较为显著的负面影响。针对上述问题,本文提出了一种基于RANSAC的圆拟合改进算法。首先,通过霍夫梯度法进行粗定位,然后通过RANSAC算法获得待拟合圆的内点集;最后,提出了依据邻域内点相对数量确定权重的WLS,重新对内点集进行圆拟合,进而计算得到连接器精确位姿。本文还进行了精度测试实验,测得姿态平均误差为0.051°,位置平均误差为0.567 pixel,并与其他常见算法进行对比,最终验证本文算法具有较高的精确度与稳定性,检测效果优于其他算法。 展开更多
关键词 连接器 圆拟合 随机抽样一致性 最小二乘法
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面向点云配准的RANSAC假设评估度量方法研究
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作者 余四豪 盖绍彦 达飞鹏 《中国光学(中英文)》 北大核心 2025年第3期487-498,共12页
本文提出了一种创新的假设度量方法,将通过三角形投票方法获得的点对置信分数与基于点对的度量相结合。该方法核心观点是:一个好的假设应能将高置信分数的对应点精确对齐,从而产生更高的得分贡献。此外,本文还对现有基于内点的度量有效... 本文提出了一种创新的假设度量方法,将通过三角形投票方法获得的点对置信分数与基于点对的度量相结合。该方法核心观点是:一个好的假设应能将高置信分数的对应点精确对齐,从而产生更高的得分贡献。此外,本文还对现有基于内点的度量有效性方法加以改进,提出2种改进方法:忽略具有较小变换误差的内点距离,以及抑制由大量低置信度对应点引起的错误高分贡献。在3个数据集上的对比实验表明,所提出的度量方法能够提升所有已知的基于点对的度量准确性,并在默认参数设置下有1%~16.95%不同程度的配准性能提升和1.67%~10.79%的时间节约,在时间消耗、鲁棒性和配准性能之间实现了更好的平衡。特别地,改进的内点计数度量具有更加鲁棒和精确的配准性能。因此,本文所提出的度量能够在RANSAC的假设评估阶段识别出更正确的假设,从而实现精确的点云配准。 展开更多
关键词 计算机视觉 点云配准 ransac 假设评估
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基于RANSAC-DBSCAN的风速功率曲线异常数据清洗方法 被引量:2
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作者 罗朗川 李汝辉 +1 位作者 曾东 邹明衡 《太阳能学报》 北大核心 2025年第4期445-453,共9页
针对海上风电机组在运行中不可避免地产生大量噪声、故障、弃风限电等异常数据,导致运行数据可用性差的问题。梳理和分析风功率曲线中异常数据的分布特征,提出基于随机采样一致(RANSAC)回归与含噪声的基于密度的空间聚类(DBSCAN)融合算... 针对海上风电机组在运行中不可避免地产生大量噪声、故障、弃风限电等异常数据,导致运行数据可用性差的问题。梳理和分析风功率曲线中异常数据的分布特征,提出基于随机采样一致(RANSAC)回归与含噪声的基于密度的空间聚类(DBSCAN)融合算法的风功率曲线异常数据清洗,并从算法的清洗效果、清洗效率以及数据删除合理性进行对比验证。结果表明,所提方法能够快速、简便、合理地识别异常数据范围,具有工程应用价值。 展开更多
关键词 海上风电 数据分析 异常诊断 随机采样一致 基于密度的空间聚类
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Psychological effects of virtual reality intervention on breast cancer patients with different personalities: A randomized controlled trial 被引量:5
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作者 Shanshan Wu Guodu Liu +9 位作者 Jie Yang Xinxin Xie Mei-E Wu Lili Wang Yanhui Zhang Jinmei Chen Xiaowei Wang Wanjiao Li Yihong Qiu Jie Chen 《International Journal of Nursing Sciences》 2025年第2期107-114,共8页
Objectives:To explore the efficacy and safety of virtual reality(VR)in relieving negative emotions in patients with breast cancer with different personalities.Methods:A randomized controlled trial was conducted.Betwee... Objectives:To explore the efficacy and safety of virtual reality(VR)in relieving negative emotions in patients with breast cancer with different personalities.Methods:A randomized controlled trial was conducted.Between April 2023 and October 2023,we enrolled patients with breast cancer treated in the Department of Breast Cancer and Oncology at Sun Yat-Sen Memorial Hospital,Sun Yat-Sen University,Guangdong Province.The patients were randomly divided into an intervention group(n=118)and a control group(n=119)using block randomization.The intervention group received the VR intervention 3-5 times over 5±2 weeks using natural landscapes with music or relaxation guidance,and the duration of each VR intervention was 15±3 min.The control group received routine nursing care,including disease education and psychological counseling.Patients were assessed using the Type D Scale,Positive and Negative Affect Scale,and Distress Thermometer,and adverse events during the intervention were recorded.Results:Overall,85 patients completed the study(44 in the intervention group and 41 in the control group).Patients with Type D personalities showed more negative emotions[25.0(21.5,27.5)vs.19.0(16.0,24.0),P=0.001]and distressed attitudes[4.0(2.0,5.0)vs.3.0(1.0,4.0),P=0.020]with fewer positive emotions(27.2±5.6 vs.31.0±5.9,P=0.014)than those with non-Type D personalities.Total population analysis revealed no significant differences between the groups.However,in the subgroup analysis,patients with Type D personalities in the intervention group showed greater relief from negative emotions than those in the control group[median difference,-5.0(-9.0,-2.5)vs.-2.0(-4.0,2.0),P=0.046].No significant differences were found between groups of patients with non-Type D personality traits.The proportion of adverse events was not significantly different between groups(P=0.110).Conclusions:Breast cancer patients with Type D personalities suffer more severe negative emotions and distress,and more attention should be paid to them.VR intervention significantly and safely reduced negative emotions in patients with Type D personalities. 展开更多
关键词 Breast neoplasms Rehabilitation research randomized controlled trial Type D personality Virtual reality
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基于改进RANSAC的单光子激光雷达目标轨迹提取算法研究
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作者 盛明圳 白同正 +2 位作者 郑小兵 翟文超 夏茂鹏 《量子电子学报》 北大核心 2025年第6期759-769,共11页
随着无人机等“低慢小”目标在众多低空领域的广泛应用,“低慢小”目标逐渐成为威胁低空安全的重要因素。本文针对低空空域对目标识别的实时性和准确性需求,提出了基于单光子激光雷达的低慢小目标轨迹提取算法。单光子激光雷达具有光子... 随着无人机等“低慢小”目标在众多低空领域的广泛应用,“低慢小”目标逐渐成为威胁低空安全的重要因素。本文针对低空空域对目标识别的实时性和准确性需求,提出了基于单光子激光雷达的低慢小目标轨迹提取算法。单光子激光雷达具有光子量级的探测灵敏度,被广泛应用于目标测距等领域。本文所提算法利用激光雷达所测得的目标距离信息,将轨迹提取问题转换为基于随机抽样一致性(RANSAC)算法的直线拟合问题,再通过对RANSAC算法进行适应性优化以实现从大量回波点云中提取目标轨迹。试验结果表明,当目标运动速度变化范围为45~75 m/s、背景噪声强度变化范围为500~3500 counts/s时,算法具有较好的适应性,误差始终控制在7 m以内,运行时间控制在75 ms以内。该方法为实时准确提取基于单光子激光雷达的低慢小目标轨迹提供了一种可行的技术方案。 展开更多
关键词 激光技术 单光子激光雷达 低慢小目标 ransac算法 轨迹提取
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Adaptor signature based on randomized EdDSA in blockchain 被引量:1
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作者 Yixing Zhu Huilin Li +1 位作者 Mengze Li Yong Yu 《Digital Communications and Networks》 2025年第3期689-699,共11页
Adaptor signature,a new primitive that alleviates the scalability issue of blockchain to some extent,has been widely adopted in the off-chain payment channel and atomic swap.As an extension of standard digital signatu... Adaptor signature,a new primitive that alleviates the scalability issue of blockchain to some extent,has been widely adopted in the off-chain payment channel and atomic swap.As an extension of standard digital signature,adaptor signature can bind the release of a complete digital signature with the exchange of a secret value.Existing constructions of adaptor signatures are mainly based on Schnorr or ECDSA signature algorithms,which suffer low signing efficiency and long signature length.In this paper,to address these issues,we propose a new construction of adaptor signature using randomized EdDSA,which has Schnorr-like structure with higher signing efficiency and shorter signature length.We prove the required security properties,including unforgeability,witness extractability and pre-signature adaptability,of the new adaptor signature scheme in the random oracle model.We conduct a comparative analysis with an ECDSA-based adaptor signature scheme to demonstrate the effectiveness and feasibility of our new proposal. 展开更多
关键词 Blockchain Adaptor signature randomized EdDSA Payment channel
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Advancements and challenges of acupuncture randomized controlled trials 被引量:1
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作者 Wei Song Seetoh Rachel Qin Rui Lim +3 位作者 Run-bing Xu Ming-xun Sun Peng Zhang Mi-na Wang 《Journal of Integrative Medicine》 2025年第4期333-343,共11页
Acupuncture is an ancient treatment method used in traditional Chinese medicine and has been popularized worldwide.Over the past decade,there has been an increase in the amount of acupuncture research,mostly comprised... Acupuncture is an ancient treatment method used in traditional Chinese medicine and has been popularized worldwide.Over the past decade,there has been an increase in the amount of acupuncture research,mostly comprised of randomized controlled trials(RCTs)that aimed to answer the question on the efficacy of acupuncture.However,poor methodology and low replicability in these acupuncture RCTs have resulted in uncertainty about the efficacy of acupuncture.In this review,current advancements and challenges in acupuncture RCTs,regarding the methodological aspects of randomization,blinding,sham acupuncture and quality of reporting,were discussed.While there have been advancements in various aspects,current acupuncture RCTs still face pressing issues such as inadequate randomization and blinding,unviable sham acupuncture controls,and poor reporting quality.Given these limitations,this review seeks to identify the methodological problems that are responsible for these problems and to suggest solutions that could help to overcome them so as to improve the quality of future studies evaluating the efficacy of acupuncture. 展开更多
关键词 ACUPUNCTURE randomized controlled trials METHODOLOGY Chinese medicine
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Plasma L-aspartic acid predicts the risk of gastric cancer and modifies the primary prevention effect:a multistage metabolomic profiling and Mendelian randomization study 被引量:1
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作者 Mengyuan Wang Zhouyi Yin +8 位作者 Hengmin Xu Zongchao Liu Sha Huang Wenhui Wu Yang Zhang Tong Zhou Weicheng You Kaifeng Pan Wenqing Li 《Cancer Biology & Medicine》 2025年第5期525-538,共14页
Objective:Based on multistage metabolomic profiling and Mendelian randomization analyses,the current study identified plasma metabolites that predicted the risk of developing gastric cancer(GC)and determined whether k... Objective:Based on multistage metabolomic profiling and Mendelian randomization analyses,the current study identified plasma metabolites that predicted the risk of developing gastric cancer(GC)and determined whether key metabolite levels modified the GC primary prevention effects.Methods:Plasma metabolites associated with GC risk were identified through a case-control study.Bi-directional two-sample Mendelian randomization analyses were performed to determine potential causal relationships utilizing the Shandong Intervention Trial(SIT),a nested case-control study of the Mass Intervention Trial in Linqu,Shandong province(MITS),China,the UK Biobank,and the Finn Gen project.Results:A higher genetic risk score for plasma L-aspartic acid was significantly associated with an increased GC risk in the northern Chinese population(SIT:HR=1.26 per 1 SD change,95%CI:1.07±1.49;MITS:HR=1.07,95%CI:1.00±1.14)and an increased gastric adenocarcinoma risk in Finn Gen(OR=1.68,95%CI:1.16±2.45).Genetically predicted plasma L-aspartic acid levels also modified the GC primary prevention effects with the beneficial effect of Helicobacter pylori eradication notably observed among individuals within the top quartile of L-aspartic acid level(P-interaction=0.098)and the beneficial effect of garlic supplementation only for those within the lowest quartile of L-aspartic acid level(P-interaction=0.02).Conclusions:Elevated plasma L-aspartic acid levels significantly increased the risk of developing GC and modified the effects of GC primary prevention.Further studies from other populations are warranted to validate the modification effect of plasma L-aspartic acid levels on GC prevention and to elucidate the underlying mechanisms. 展开更多
关键词 Gastric cancer plasma metabolites Mendelian randomization L-aspartic acid
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Electroacupuncture versus conventional acupuncture of scalp motor area for post-stroke wrist dyskinesia and its effect on muscle function: a randomized, controlled clinical trial 被引量:1
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作者 ZHENG Ruwen DONG Xu +7 位作者 WANG Tianyi FENG Liyuan ZHANG Hongyan HUO Hong ZHANG Ying ZHANG Qianshi ZHU Xingyan WANG Dongyan 《Journal of Traditional Chinese Medicine》 2025年第4期852-859,共8页
OBJECTIVE:To evaluate the efficacy of electroacupuncture(EA)at scalp motor area for treating post-stroke wrist dyskinesia and its influence on the function of wrist movement-related agonistic muscles.METHODS:A randomi... OBJECTIVE:To evaluate the efficacy of electroacupuncture(EA)at scalp motor area for treating post-stroke wrist dyskinesia and its influence on the function of wrist movement-related agonistic muscles.METHODS:A randomized,single-blind,controlled clinical trial was conducted.Sixty-six patients undergoing post-stroke wrist dyskinesia were enrolled and randomized 1:1 to EA or control group.Patients in the control group received manual acupuncture in the scalp motor area(MS 6)on the lesion side.The same acupoint was selected to accept EA stimulation in the EA group.All patients were treated six times a week for three weeks.The primary outcome was the Chinese Stroke Scale(CSS)score.The secondary outcomes included upper limb-related Barthel Index(BI)score,active range of motion(AROM)of the wrist joint,and root mean square(RMS)of the four agonistic muscles associated with wrist motion on the hemiplegic side of patients,i.e.,the extensor carpi radialis longus(ECRL),extensor digitorum(ED),flexor carpi radialis(FCR)and flexor carpi ulnaris(FCU).The above indicators were measured before and after three weeks of treatment.RESULTS:After 3-week treatment,the CSS score and AROM of wrist dorsiflexion of the EA group were better than those in the control group(P=0.038,P=0.047).The differences between the two groups of BI scores and AROM of wrist flexion were not significant(P>0.05).All RMS of the EA group were higher than those in the control group(ECRL:P=0.047,ED:P=0.048,FCR:P=0.049,FCU:P=0.047).The total effective rate in the EA group was 87.50%(28/32),which was higher than that in the control group(77.42%,24/31,P=0.048).CONCLUSION:EA stimulation of the scalp motor area can promote the recovery of the strength and function of the agonistic muscles related to wrist movement and effectively improve post-stroke wrist dyskinesia. 展开更多
关键词 stroke wrist joint movement disorders ELECTROACUPUNCTURE ELECTROMYOGRAPHY randomized controlled trial
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Association of Loneliness and Social Isolation with Ischemic Heart Disease: A Bidirectional and Network Mendelian Randomization Study 被引量:1
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作者 Shuyao Su Wanyue Wang +3 位作者 Chenxi Yuan Zhennan Lin Xiangfeng Lu Fangchao Liu 《Biomedical and Environmental Sciences》 2025年第3期351-364,共14页
Objective Observational studies have shown inconsistent associations of loneliness or social isolation(SI)with ischemic heart disease(IHD),with unknown mediators.Methods Using data from genome-wide association studies... Objective Observational studies have shown inconsistent associations of loneliness or social isolation(SI)with ischemic heart disease(IHD),with unknown mediators.Methods Using data from genome-wide association studies of predominantly European ancestry,we performed a bidirectional two-sample Mendelian Randomization(MR)study to estimate causal effects of loneliness(N=487,647)and SI traits on IHD(N=184,305).SI traits included whether individuals lived alone,participated in various types of social activities,and how often they had contact with friends or family(N=459,830 to 461,369).A network MR study was conducted to evaluate the mediating roles of 20 candidate mediators,including metabolic,behavioral and psychological factors.Results Loneliness increased IHD risk(OR=2.129;95%confidence interval[CI]:1.380 to 3.285),mediated by body fat percentage,waist-hip ratio,total cholesterol,and low-density lipoprotein cholesterol.For SI traits,only fewer social activities increased IHD risk(OR=1.815;95%CI:1.189 to 2.772),mediated by hypertension,high-density lipoprotein cholesterol,triglycerides,fasting insulin,and smoking cessation.No reverse causality of IHD with loneliness and SI was found.Conclusion These findings suggested more attention should be paid to individuals who feel lonely and have fewer social activities to prevent IHD,with several mediators as prioritized targets for intervention. 展开更多
关键词 Mendelian randomization LONELINESS Social isolation Ischemic heart disease Mediation analyses
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Causal Links Between Gut Microbiota and Vitamin Deficiencies:Evidence from Mendelian Randomization Analysis 被引量:1
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作者 Zi-xuan Hou Wen-jing Li +4 位作者 Rong Pi Han-wen-xi Wang Meng-na Dai Yan Ouyang Su-yun Li 《Current Medical Science》 2025年第2期321-330,共10页
Objective Vitamin deficiencies,particularly in vitamins A,B12,and D,are prevalent across populations and contribute significantly to a range of health issues.While these deficiencies are well documented,the underlying... Objective Vitamin deficiencies,particularly in vitamins A,B12,and D,are prevalent across populations and contribute significantly to a range of health issues.While these deficiencies are well documented,the underlying etiology remains complex.Recent studies suggest a close link between the gut microbiota and the synthesis,absorption,and metabolism of these vitamins.However,the specific causal relationships between the gut microbiota composition and vitamin deficiencies remain poorly understood.Identifying key bacterial species and understanding their role in vitamin metabolism could provide critical insights for targeted interventions.Methods We conducted a two-sample Mendelian randomization(MR)study to assess the causal relationship between the gut microbiota and vitamin deficiencies(A,B12,D).The genome-wide association study data for vitamin deficiencies were sourced from the FinnGen biobank,and the gut microbiota data were from the MiBioGen consortium.MR analyses included inverse variance-weighted(IVW),MR‒Egger,weighted median,and weighted mode approaches.Sensitivity analyses and reverse causality assessments were performed to ensure robustness and validate the findings.Results After FDR adjustment,vitamin B12 deficiency was associated with the class Verrucomicrobiae,order Verrucomicrobiales,family Verrucomicrobiaceae,and genus Akkermansia.Vitamin A deficiency was associated with the phylum Firmicutes and the genera Fusicatenibacter and Ruminiclostridium 6.Additional associations for vitamin B12 deficiency included the Enterobacteriaceae and Rhodospirillaceae and the genera Coprococcus 2,Lactococcus,and Ruminococcaceae UCG002.Vitamin D deficiency was associated with the genera Allisonella,Eubacterium,and Tyzzerella 3.Lachnospiraceae and Lactococcus were common risk factors for both B12 and D deficiency.Sensitivity analyses confirmed the robustness of the findings against heterogeneity and horizontal pleiotropy,and reverse MR tests indicated no evidence of reverse causality.Conclusions Our findings reveal a possible causal relationship between specific gut microbiota characteristics and vitamin A,B12 and D deficiencies,providing a theoretical basis for addressing these nutritional deficiencies through the modulation of the gut microbiota in the future and laying the groundwork for related interventions. 展开更多
关键词 Gut microbiota Vitamin deficiencies Mendelian randomization Causal relationship-Genome-wide association study
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Effects of acupuncture combined with bone-setting therapy to treat tourette syndrome:a three-arm randomized controlled trial 被引量:1
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作者 LANG Jiawang JIN Lingqing +1 位作者 LUO Jianchang LANG Boxu 《Journal of Traditional Chinese Medicine》 2025年第1期176-183,共8页
OBJECTIVE:To explore the efficacy and safety of acupuncture combined with atlantoaxial joint bone-setting therapy for the treatment of Tourette syndrome.METHODS:We randomly divided 600 patients at a ratio of 1∶1∶1 i... OBJECTIVE:To explore the efficacy and safety of acupuncture combined with atlantoaxial joint bone-setting therapy for the treatment of Tourette syndrome.METHODS:We randomly divided 600 patients at a ratio of 1∶1∶1 into three groups:group A(acupuncture combined with atlantoaxial joint bone setting therapy group),group B(acupuncture group),and group C(tiapride group).After two months of treatment,the Yale global tic severity scale(YGTSS)score reduction,improvement in social function impairment,clinical efficacy,and long-term efficacy in the three groups were compared.RESULTS:After treatment,in the analysis of YGTSS score reduction,social function impairment improvement,the clinical control rate,and long-term efficacy,the results were all Group A>Group B>Group C,with a statistically significant difference(P<0.05).However,the total clinical efficacy of treatment in group A(94.9%)was not significantly different from that in group B(91.8%).Adverse reactions did not occur in groups A and B,and several adverse reactions occurred in 29%(n=58)of the group C patients.CONCLUSION:Compared with traditional drug therapy,acupuncture combined with atlantoaxial joint bone setting therapy has better clinical and long-term efficacy.This treatment strategy can improve the social function of children and prevent adverse reactions to drugs. 展开更多
关键词 Tourette syndrome ACUPUNCTURE atlanto-axial joint tiapride hydrochloride bone setting randomized controlled trial
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基于改进RANSAC算法的船舶靠泊姿态测量
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作者 周亮 王启明 +3 位作者 朱瑞虎 王清涵 邹逸瑾 胡悦 《船舶工程》 北大核心 2025年第6期83-91,159,共10页
[目的]实时且精确地获取靠泊姿态信息对于有效应对突发事件和保障码头安全运营至关重要,然而现有方法存在实时性和精确性不能兼得等问题。[方法]基于激光雷达点云实时数据,充分考虑点云误差和船形状的特殊性,提出适用于船舶形态的优化... [目的]实时且精确地获取靠泊姿态信息对于有效应对突发事件和保障码头安全运营至关重要,然而现有方法存在实时性和精确性不能兼得等问题。[方法]基于激光雷达点云实时数据,充分考虑点云误差和船形状的特殊性,提出适用于船舶形态的优化随机抽样一致算法(OH-RANSAC)。该方法对点云体素滤波下采样和统计滤波去噪,以提升识别速度和精度;并在RANSAC算法的基础上,加入点的曲率,构建新的能量函数,实现对复杂船体表面的最优拟合平面选择;同时,通过船身平面的自适应法向量实现船舶姿态的精确识别,进一步在数值模拟试验和实验室水池试验中进行了验证,[结果]结果表明OH-RANSAC算法在模拟和水池试验中的均方根误差和平均绝对误差均小于传统RANSAC算法,均方根误差和平均绝对误差有了显著提升。[结论]该方法充分考虑船体的形状特征,并引入了可调节的参数以适应不同船型的需求,可为精确、实时识别船舶姿态提供新方法,为船舶安全靠泊提供新手段。 展开更多
关键词 激光雷达 点云数据 船舶姿态 优化随机抽样一致性
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Unmasking Social Robots’Camouflage:A GNN-Random Forest Framework for Enhanced Detection
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作者 Weijian Fan Chunhua Wang +1 位作者 Xiao Han Chichen Lin 《Computers, Materials & Continua》 SCIE EI 2025年第1期467-483,共17页
The proliferation of robot accounts on social media platforms has posed a significant negative impact,necessitating robust measures to counter network anomalies and safeguard content integrity.Social robot detection h... The proliferation of robot accounts on social media platforms has posed a significant negative impact,necessitating robust measures to counter network anomalies and safeguard content integrity.Social robot detection has emerged as a pivotal yet intricate task,aimed at mitigating the dissemination of misleading information.While graphbased approaches have attained remarkable performance in this realm,they grapple with a fundamental limitation:the homogeneity assumption in graph convolution allows social robots to stealthily evade detection by mingling with genuine human profiles.To unravel this challenge and thwart the camouflage tactics,this work proposed an innovative social robot detection framework based on enhanced HOmogeneity and Random Forest(HORFBot).At the core of HORFBot lies a homogeneous graph enhancement strategy,intricately woven with edge-removal techniques,tometiculously dissect the graph intomultiple revealing subgraphs.Subsequently,leveraging the power of contrastive learning,the proposed methodology meticulously trains multiple graph convolutional networks,each honed to discern nuances within these tailored subgraphs.The culminating stage involves the fusion of these feature-rich base classifiers,harmoniously aggregating their insights to produce a comprehensive detection outcome.Extensive experiments on three social robot detection datasets have shown that this method effectively improves the accuracy of social robot detection and outperforms comparative methods. 展开更多
关键词 Social robot detection graph neural networks random forest HOMOPHILY heterophily
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Effect of Compound Danshen Dripping Pills on cardiac function after acute anterior ST-segment elevation myocardial infarction:A randomized trial 被引量:1
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作者 Bo Deng Sibo Wang +14 位作者 Yujie Wu Qiming Wang Rui Qiao Xiwen Zhang Yuan Lu Li Wang Shunzhong Gu Yuqing Zhang Kaiqiao Li Zongliang Yu Lixing Wu Shengbiao Zhao Shuanglin Zhou Yang Yang Liansheng Wang 《Journal of Biomedical Research》 2025年第4期407-416,I0018,共11页
The current study aimed to evaluate the efficacy and safety of Compound Danshen Dripping Pills(CDDP)in improving cardiac function in patients with acute anterior ST-segment elevation myocardial infarction(AAMI).Betwee... The current study aimed to evaluate the efficacy and safety of Compound Danshen Dripping Pills(CDDP)in improving cardiac function in patients with acute anterior ST-segment elevation myocardial infarction(AAMI).Between February 2021 and February 2023,247 eligible patients with AAMI after primary percutaneous coronary intervention were enrolled and randomly assigned(1∶1)to receive CDDP(n=126)or placebo(n=121),with a follow-up of 48 weeks.Compared with the placebo group,the CDDP group demonstrated a significant increase in left ventricular ejection fraction values after 24 weeks of treatment(least squares mean:3.31;95%confidence interval[CI]:1.72–4.90;P<0.001)and at the 48-week follow-up(least squares mean:4.35;95%CI:2.76–5.94;P<0.001).Significant reductions in N-terminal pro-B-type natriuretic peptide levels were observed in both groups at the 24-and 48-week visits with no significant difference between the two groups(P>0.1 for all).The incidence of major adverse cardiovascular and cerebrovascular events was 6.35%in the CDDP group and 5.79%in the placebo group(P=0.822).Notably,no serious adverse events were attributed to CDDP.These findings suggest that CDDP may be well tolerated and could improve left ventricular ejection fraction in patients with AAMI at 24 and 48 weeks. 展开更多
关键词 Compound Danshen Dripping Pills cardiac function acute anterior myocardial infarction randomized controlled trial
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Effectiveness of combining Qingyanyin formulated granules(轻燕饮配方颗粒) with press needles in treating abdominal obesity:a multicenter randomized controlled trial 被引量:1
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作者 YE Wujie YANG Yawei +6 位作者 ZHANG Da TANG Ling CUI Minying FU Bin ZHANG Meng HU Xingang ZHAO Yan 《Journal of Traditional Chinese Medicine》 2025年第1期107-114,共8页
OBJECTIVE:To assess the efficacy and safety of the Qingyanyin formulated granules(轻燕饮配方颗粒,QYY),press needles(PN),and their combined application in addressing abdominal obesity(AO).This trial aims to offer a mor... OBJECTIVE:To assess the efficacy and safety of the Qingyanyin formulated granules(轻燕饮配方颗粒,QYY),press needles(PN),and their combined application in addressing abdominal obesity(AO).This trial aims to offer a more scientifically grounded therapeutic regimen for clinical interventions.METHODS:From March 2021 to July 2021,a multicenter,triple-blind,randomized 2×2 factorial design clinical trial was conducted across 7 centers in 4 major cities within China's mainland.The trial participants were patients diagnosed with AO.The trial followed a 1∶1∶1∶1 random allocation ratio,assigning participants to one of four groups:QYY placebo plus simulated press needles(SPN)(placebo+SPN),QYY plus SPN(QYY+SPN),QYY placebo plus PN(placebo+PN),and QYY plus PN(QYY+PN).The trial participants received treatment for 12 weeks.Observe the changes in waist circumference,body weight,body mass index(BMI),Beck Depression Inventory(BDI),Beck Anxiety Inventory(BAI)scores,and Pittsburgh Sleep Quality Index(PSQI)before and after treatment.RESULTS:The QYY+PN group exhibited significant improvements in waist circumference compared to placebo+PN[Difference=-1.59,95%CI(-3.03,-0.16)]and placebo+SPN groups[Difference=-2.01,95%CI(-3.46,-0.57)].QYY+PN demonstrated a significant advantage over placebo+SPN[Difference=-2.01,95%CI(-3.46,-0.57)],and no statistically significant interaction was observed between the two interventions(P>0.05).In terms of weight and BMI improvements,the QYY+PN,QYY+SPN,and the PN+placebo groups all experienced trending greater reductions in weight compared to the placebo group.In terms of the total scores of PSQI,BAI,and BDI,all four groups exhibited improvements compared to the baseline.Specifically,concerning the change in total PSQI scores,the QYY+PN group exhibited a greater reduction;Regarding the change in total BAI scores,the PN+placebo group demonstrated a greater decrease;As for the change in total BDI scores,the QYY+SPN group displayed a greater reduction.CONCLUSION:This study confirmed that QYY+PN can effectively reduce the waist circumference of patients with AO.Furthermore,the combined approach offers greater benefits than either treatment alone,all without any reported serious adverse events. 展开更多
关键词 obesity abdominal body mass index press needle randomized controlled trial Qingyanyin formulated granules
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