Social anxiety (SA) is a prevalent mental health issue among adolescents, and vulnerable narcissism (VN) can exacerbate thiscondition. This study aims to investigate the impact of vulnerable narcissism on social anxie...Social anxiety (SA) is a prevalent mental health issue among adolescents, and vulnerable narcissism (VN) can exacerbate thiscondition. This study aims to investigate the impact of vulnerable narcissism on social anxiety in adolescents, specificallyfocusing on the mediating effects of self-concept clarity (SCC) and self-esteem (SE) in the relationship between vulnerablenarcissism and social anxiety. Through cluster sampling, a questionnaire survey was conducted among 982 students from threesecondary schools in two provinces. The data was analyzed using structural equation modeling (SEM). The results revealedthat there was a significant negative correlation between vulnerable narcissism and both self-concept clarity and self-esteem,while there was a significant positive correlation between vulnerable narcissism and social anxiety. Additionally, self-conceptclarity showed a significant positive correlation with self-esteem but had a negative correlation with social anxiety. Both selfconceptclarity and self-esteem played an intermediary role in the chain linking vulnerable narcissism to social anxiety. Thisstudy confirms the mediating role of both self-concept clarity and self-esteem in explaining how vulnerable narcissisminfluences social anxiety, providing valuable insights into its underlying mechanism.展开更多
动脉粥样硬化血栓栓塞所导致的疾病是世界上最大的致命性杀手.由赛诺菲-安万特集团出资,在全球开展了两项研究CLARITY-TIMI 28(CLopidogrel as Adjunctive ReperfusIon Therapy-Thrombolysis In Myocardial Infarction Study 28)和COMMI...动脉粥样硬化血栓栓塞所导致的疾病是世界上最大的致命性杀手.由赛诺菲-安万特集团出资,在全球开展了两项研究CLARITY-TIMI 28(CLopidogrel as Adjunctive ReperfusIon Therapy-Thrombolysis In Myocardial Infarction Study 28)和COMMIT/CCS-2(C1Opidogrel and Metoprolol in Myocardial Infarction Trial),这项两项重要临床研究结果在2005年3月第54届美国心脏病学会(ACC)年会上公布.应法国赛诺菲-安万特集团中国公司的邀请,著名心血管专家胡大一教授和Braunwald博士2005年3月25日在北京对有关媒体通报ACC年会上发表的CLARITY-TIMI28和COMMIT/CCS-2重要临床研究结果进行通报,结果显示:抗血小板药物氯吡格雷(75mg每日1次)联合标准治疗对于急性心肌梗死(AMI)[(ST段抬高AMI(STE-AMI)]的患者显著有益.两项重大临床研究共包括了近50000名患者.展开更多
针对当前逆半色调方法恢复的图像存在细节不清晰甚至丢失的问题,提出了一种基于注意力编解码器及多残差网络(Encoder-decoder with attention and multi-residual network,EDAMRNet)的逆半色调方法。首先,设计融合注意力机制的编解码器...针对当前逆半色调方法恢复的图像存在细节不清晰甚至丢失的问题,提出了一种基于注意力编解码器及多残差网络(Encoder-decoder with attention and multi-residual network,EDAMRNet)的逆半色调方法。首先,设计融合注意力机制的编解码器结构,在其跳跃连接处添加非对称特征融合模块,以有效提取图像上下文信息;然后,构造多残差网络,捕获并保留图像空间细节信息;最后,应用监督注意力模块对图像上下文信息进行加强,再传递到多残差网络,以恢复出高质量的连续色调图像。实验结果表明:该方法与现有最优方法相比,在Urban100和Manga109数据集下的峰值信噪比平均值均提高了0.1 dB,结构相似性平均值分别提高了0.0010和0.0005。该方法能够在提取图像上下文信息的同时保留图像空间细节信息,可更好地恢复图像纹理信息,提高图像清晰度,为图像逆半色调方法研究提供了一种新的方案。展开更多
To explore the relationship between social influence,social comparison,clarity of self-concept,and psychological anxiety among young women during their usage of social networking sites,our study selected 338 young wom...To explore the relationship between social influence,social comparison,clarity of self-concept,and psychological anxiety among young women during their usage of social networking sites,our study selected 338 young women aged 14-34 from the social site platforms of Little Red Book and Weibo for questionnaire surveys.The Passive Social Network Utilization Scale,Social Comparison Scale(SCS),Social Influence Questionnaire,Self-Concept Clarity Scale(SCCS),and Generalized Anxiety Disorder Scale(GAD-7)were employed to measure the subjects.Our results show that the frequency of passive social media use is positively related to the level of psychological anxiety.Social comparison,social influence,and unclear self-concepts under social media use are negatively predictive of psychological anxiety.The chain mediation effects indicate that social comparison and social influence under social media use negatively predict the clarity of self-concept,thus having a negative impact on the psychological health of young women.Therefore,young women should strengthen their self-concepts,control their frequency of social media usage,avoid addiction,and pay special attention to their frequency of passive use,in order to protect their psychological health.Our study provides some practical implications and insights regarding the relationship between young women’s social media use and psychological health.展开更多
基金the National Natural Science Foundation of China(31960181,32360213 and 82260364).
文摘Social anxiety (SA) is a prevalent mental health issue among adolescents, and vulnerable narcissism (VN) can exacerbate thiscondition. This study aims to investigate the impact of vulnerable narcissism on social anxiety in adolescents, specificallyfocusing on the mediating effects of self-concept clarity (SCC) and self-esteem (SE) in the relationship between vulnerablenarcissism and social anxiety. Through cluster sampling, a questionnaire survey was conducted among 982 students from threesecondary schools in two provinces. The data was analyzed using structural equation modeling (SEM). The results revealedthat there was a significant negative correlation between vulnerable narcissism and both self-concept clarity and self-esteem,while there was a significant positive correlation between vulnerable narcissism and social anxiety. Additionally, self-conceptclarity showed a significant positive correlation with self-esteem but had a negative correlation with social anxiety. Both selfconceptclarity and self-esteem played an intermediary role in the chain linking vulnerable narcissism to social anxiety. Thisstudy confirms the mediating role of both self-concept clarity and self-esteem in explaining how vulnerable narcissisminfluences social anxiety, providing valuable insights into its underlying mechanism.
文摘针对黑白电影的上色过程中,自动上色模型只生成一种结果导致上色结果单一、基于参考示例上色方法需要用户指定参考图像、参考图像的高要求会耗费大量人力的问题,提出了一种多阶段的黑白影像智能色彩修复算法(A Multi-Stage Intelligent Color Restoration Algorithm for Black-and-White Movies,MSICRA)。首先,使用VGG19网络将电影分割为多个场景片段;其次,将每个场景片段逐帧切割,将每帧图像的边缘强度和灰度差作为图像清晰度评判指标,筛选出每个场景中清晰度位于[0.95,1]区间的图像;然后,选择筛选出的图像中的第一张,使用不同的渲染因子值进行上色,利用饱和度进行上色效果的评估,选择合适的渲染因子值对筛选出的图像上色;最后,利用上色前和上色后图像之间的均方误差选择上色质量较好的图像作为该场景片段上色的参考图像。实验结果表明,所提算法在黑白电影《雷锋》和《永不消逝的电波》的PSNR上分别提高了1.32%和2.15%,SSIM分别提高了1.84%和1.04%。该算法不仅可以实现全自动上色,而且颜色真实,符合人们的认知。
文摘动脉粥样硬化血栓栓塞所导致的疾病是世界上最大的致命性杀手.由赛诺菲-安万特集团出资,在全球开展了两项研究CLARITY-TIMI 28(CLopidogrel as Adjunctive ReperfusIon Therapy-Thrombolysis In Myocardial Infarction Study 28)和COMMIT/CCS-2(C1Opidogrel and Metoprolol in Myocardial Infarction Trial),这项两项重要临床研究结果在2005年3月第54届美国心脏病学会(ACC)年会上公布.应法国赛诺菲-安万特集团中国公司的邀请,著名心血管专家胡大一教授和Braunwald博士2005年3月25日在北京对有关媒体通报ACC年会上发表的CLARITY-TIMI28和COMMIT/CCS-2重要临床研究结果进行通报,结果显示:抗血小板药物氯吡格雷(75mg每日1次)联合标准治疗对于急性心肌梗死(AMI)[(ST段抬高AMI(STE-AMI)]的患者显著有益.两项重大临床研究共包括了近50000名患者.
文摘针对当前逆半色调方法恢复的图像存在细节不清晰甚至丢失的问题,提出了一种基于注意力编解码器及多残差网络(Encoder-decoder with attention and multi-residual network,EDAMRNet)的逆半色调方法。首先,设计融合注意力机制的编解码器结构,在其跳跃连接处添加非对称特征融合模块,以有效提取图像上下文信息;然后,构造多残差网络,捕获并保留图像空间细节信息;最后,应用监督注意力模块对图像上下文信息进行加强,再传递到多残差网络,以恢复出高质量的连续色调图像。实验结果表明:该方法与现有最优方法相比,在Urban100和Manga109数据集下的峰值信噪比平均值均提高了0.1 dB,结构相似性平均值分别提高了0.0010和0.0005。该方法能够在提取图像上下文信息的同时保留图像空间细节信息,可更好地恢复图像纹理信息,提高图像清晰度,为图像逆半色调方法研究提供了一种新的方案。
基金funded by Zhejiang Xi Jinping Research Center for Socialist Thought with Chinese Characteristics in the New Era Project(Grant No.23CCG39).
文摘To explore the relationship between social influence,social comparison,clarity of self-concept,and psychological anxiety among young women during their usage of social networking sites,our study selected 338 young women aged 14-34 from the social site platforms of Little Red Book and Weibo for questionnaire surveys.The Passive Social Network Utilization Scale,Social Comparison Scale(SCS),Social Influence Questionnaire,Self-Concept Clarity Scale(SCCS),and Generalized Anxiety Disorder Scale(GAD-7)were employed to measure the subjects.Our results show that the frequency of passive social media use is positively related to the level of psychological anxiety.Social comparison,social influence,and unclear self-concepts under social media use are negatively predictive of psychological anxiety.The chain mediation effects indicate that social comparison and social influence under social media use negatively predict the clarity of self-concept,thus having a negative impact on the psychological health of young women.Therefore,young women should strengthen their self-concepts,control their frequency of social media usage,avoid addiction,and pay special attention to their frequency of passive use,in order to protect their psychological health.Our study provides some practical implications and insights regarding the relationship between young women’s social media use and psychological health.
