共查询到19条相似文献，搜索用时 109 毫秒
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依恋不仅会在儿童时期发生作用,同样的,它也会影响成人之间的人际交往模型,影响个体在人际交往中的情绪情感。本研究选取在校大学生为研究对象,采用高兴面孔表情、悲伤面孔表情和愤怒面孔表情来探讨依恋取向对面孔表情的影响,试图揭示依恋取向在意识和无意识层面中对面孔表情识别的作用。 相似文献
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[研究目的]阅读隐私政策是个体使用互联网应用前需要面对的事项,也是触发隐私保护意愿的重要原因。[研究方法]以保护动机理论和资源保存理论为基础,探讨隐私政策文本特征(篇幅/提示)对个体隐私保护意愿的影响机制。研究设计2(高/低隐私保护自我效能)×2(长/短隐私政策文本篇幅)×2(有/无隐私政策提示线索)组间实验,展开研究。[研究结果]分析发现：隐私政策本文特征对个体隐私保护意愿的作用存在双刃剑效应。一方面,文本特征能激发个体隐私关注,促进其产生隐私保护意愿;另一方面,文本特征也能诱发个体情绪耗竭,降低对隐私保护的意愿。同样的文本篇幅,有提示线索要比无提示线索更能促进被试的隐私关注、隐私保护意愿并抑制情绪耗竭发生。在控制了提示线索后,短篇幅要比长篇幅更能促进被试的隐私关注、隐私保护意愿并抑制情绪耗竭的发生。 相似文献
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在对面孔进行识别时，大脑会在170ms左右产生一个负波即N170。N170是否具有面孔特异性，反映的是结构编码还是特征编码，一直都存在争论。文章对这两个争论进行了阐述，并提出将N170作为异族效应指标的设想，期望探讨N170在情绪面孔识别中的神经机制。 相似文献
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为探不同离心力(转速)对抗体效价检测结果的影响,文章中以检测鸡新城疫抗体效价为验证试验,用100份鸡血液经不同离心力分离血清开展检测,结果表明抗体效价检测结果和离心力(转速)相关性不大,不同离心力分离动物血清对抗体效价检测结果影响不显著。 相似文献
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本研究采用去除面孔外部特征的不同性别中性情绪陌生面孔刺激作为实验材料,通过"学习-再认"范式,对67名大学生进行测试,旨在探讨陌生面孔识别中的性别差异。结果发现:(1)女性与男性对陌生面孔识别的能力无差异;(2)男性对陌生男性面孔识别表现出偏向;(3)女性对陌生男性面孔识别表现出偏向。 相似文献
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[目的/意义]本研究旨在从信息觅食理论出发,分析点评类软件消费者在线评论搜索行为的内在机理。[方法/过程]以信息觅食理论为基础,围绕信息线索、斑块模型和菜单模型构建了消费者在线评论搜索行为模型。采用问卷调查法收集352份有效样本数据,并利用结构方程模型对理论模型进行分析与检验。[结果/结论]评论内容质量、评论丰富性、评论效价以及评论者资信度4类信息线索均会正向显著影响消费者斑块收益感知,进而正向影响消费者在线评论搜索行为。此外,评论效价也会直接正向显著影响消费者在线评论搜索行为。本研究在理论层面深入揭示了消费者在线评论搜索行为的内在机理,延伸了信息觅食理论的研究情境与边界;在实践层面为点评类软件的功能优化及引导消费者有效搜索在线评论提供了相关建议。 相似文献
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在网络切换和数据通信中,会产生一种伪随机时频跳变网络谐振信号,需要对这种谐振信号进行信号抑制,提高网络的安全性和稳定性,对网络谐振信号的信息容量估计是实现谐振信号抑制的基础。提出一种基于人工免疫的伪随机时频跳变网络谐振信号的信息容量估计算法,首先进行伪随机时频跳变网络系统的总体设计,计算网络跳变信号在人工免疫进化过程中免疫节点的位置和尺度参数,引入自适应转发控制策略,构建数据信息链优先链路选择准则,预测信号的下一个跳变点,得到多路复用波束域约束指向形成信号容量的输出结果,通过对信号容量的准确估计,可以避免网络出现启动滞后、服务器负载、消息消耗以及颤抖等现象。实验结果表明,该算法对伪随机时频跳变网络谐振信号的信息容量估计精度高,抑制性能和检测性能较好,确保了网络系统的稳定。 相似文献
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Renting a property via a peer-to-peer platform involves a variety of risks. Humans inherently, subconsciously use facial cues as important shortcuts in making assessments about other persons. On property sharing platforms, such as Airbnb, facial cues can be used in a similar fashion alongside reputational information. According to Dangerous Decisions Theory (DDT), intuitive evaluations of trustworthiness based on faces can bias subsequent assessment of an individual, requiring further information sources to make a more balanced assessment. In this study we apply DDT to demonstrate that evaluations based on perceived facial trustworthiness are overvalued; when combined with reputational measures, such as ‘super host’ status, such assessments are diminished. The study is based on deep learning to classify host faces for a large data set of online accommodation (n = 78,386). The research demonstrates that facial trust cues in online platforms should be treated with caution and must be combined with more objective measures of reputation in order to reduce the effects of overvaluation. The paper concludes with implications for practice and future research. 相似文献
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组织际关系治理不同影响因素下策略选择的实证研究 总被引：1，自引：0，他引：1
组织际关系治理是以企业间的竞争合作为基点,以提高组织间关系的治理绩效、保护专用性投入、增强企业核心技术为目的,是企业获得竞争优势的重要来源.而寻找影响组织际关系治理的关键因素,是提高治理绩效的关键所在,是选择治理策略的重要依据.在相关文献基础上,从多视角出发系统总结了影响组织际关系治理的几年关键因素.实践中可行的治理策略有关系治理,正式治理,以及关系治理下的事前联合计划和事后联合解决问题,正式治理下的股权契约治理手段,提出了一种不同影响因素下的治理策略选择模型,通过因子分析验证问卷设计的信度和效度,通过结构方程和二元逻辑回归得出不同影响因素的治理策略选择. 相似文献
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Xiao Wang Shuanghao Zheng Feng Zhou Jieqiong Qin Xiaoyu Shi Sen Wang Chenglin Sun Xinhe Bao Zhong-Shuai Wu 《国家科学评论(英文版)》2020,7(1):64
The rapid development of printed and microscale electronics imminently requires compatible micro-batteries (MBs) with high performance, applicable scalability, and exceptional safety, but faces great challenges from the ever-reported stacked geometry. Herein the first printed planar prototype of aqueous-based, high-safety Zn//MnO2 MBs, with outstanding performance, aesthetic diversity, flexibility and modularization, is demonstrated, based on interdigital patterns of Zn ink as anode and MnO2 ink as cathode, with high-conducting graphene ink as a metal-free current collector, fabricated by an industrially scalable screen-printing technique. The planar separator-free Zn//MnO2 MBs, tested in neutral aqueous electrolyte, deliver a high volumetric capacity of 19.3 mAh/cm3 (corresponding to 393 mAh/g) at 7.5 mA/cm3, and notable volumetric energy density of 17.3 mWh/cm3, outperforming lithium thin-film batteries (≤10 mWh/cm3). Furthermore, our Zn//MnO2 MBs present long-term cyclability having a high capacity retention of 83.9% after 1300 cycles at 5 C, which is superior to stacked Zn//MnO2 batteries previously reported. Also, Zn//MnO2 planar MBs exhibit exceptional flexibility without observable capacity decay under serious deformation, and remarkably serial and parallel integration of constructing bipolar cells with high voltage and capacity output. Therefore, low-cost, environmentally benign Zn//MnO2 MBs with in-plane geometry possess huge potential as high-energy, safe, scalable and flexible microscale power sources for direction integration with printed electronics. 相似文献
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This paper addresses the question of how firms accomplish the strategic task of adapting their entire set of IORs (interorganizational relationships) to changing environmental conditions. To study this, we move beyond the focus on collaboration with individual partners (the dyadic perspective) that has been the dominant emphasis in the literature until now. Instead, we view the firms’ portfolios through the lens of the different modes of IOR engaged in (licensing agreements, non-equity alliances, venture capital investments, minority investments, joint ventures, and mergers & and acquisitions). We study the role of environmental change within the high-tech setting of the bio-pharmaceutical industry and distinguish between industry technological change and firm-specific technological change. In doing so, we rely on prospect theory to theorize how firms’ perceptions of environmental change in terms of a looming loss or a potential gain affect their risk-bearing, how this leads them to adjust their IOR portfolio diversity, and how these adjustments get implemented at the mode level. Whereas most of our hypotheses were confirmed by the study, a key unexpected finding was that firms respond to both types of technological change through stronger forms of adaptation than theoretically anticipated. Firms adapt to industry technological change through an increase in the diversity of their portfolio of IORs and by churning it up, which leads to a loosening of control at the individual mode level but greater adaptivity at the portfolio level. When facing firm-specific change instead, they adapt by reducing portfolio diversity, while cutting back on collaboration across five out of the six modes. Our findings both contribute to the literature on organizational adaptation, interfirm collaboration, and IOR portfolios and provide a greater behavioral understanding of network change. 相似文献
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在社会化媒体时代,如何在创新社区的海量数据环境中识别出领先用户,是企业从创新社区中获取价值的关键问题。本文从语言风格的视角出发,首先通过内容分析法探索了创新社区中领先用户表达的典型语言风格特征,即成就需求、未来导向、积极情绪和集体主义。其次,收集了355名创新社区用户所发表的47310篇帖子,利用自动文本分析方法对其中包含的积极情绪、集体主义和未来导向语言风格进行了测量,并验证了这四种语言风格与用户领先性的关系。研究结果表明,创新社区用户生成内容中所表现的语言风格起到了“信号”的作用：除了集体主义之外,成就需求、未来导向和积极情绪的语言风格都与用户领先性有显著的正向关系,可以作为识别领先用户的有效指标。最后,讨论了基于语言风格的领先用户识别机制的理论意义和实践价值。 相似文献
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张耕 《科学学与科学技术管理》2006,27(2):140-143
组织际关系是一种建立在多个经济实体合作基础之上的、跨越组织边界的混合式组织形式,对维护长期持续的合作关系至关重要.主要探讨了组织际关系产生的起因、分类、影响因素以及潜在的风险,并且指出,根据影响因素采取相应的控制手段,是保证组织际关系成功的关键. 相似文献
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情绪的ERP研究新进展 总被引：3，自引：0，他引：3
ERP技术是研究情绪问题的有效手段 ,实验对象包括正常被试以及心境障碍的病人 .可从视觉或 和听觉通道给予情绪刺激材料 ,观察P1、N1和P30 0等ERP成分的变化 .研究发现 ,情绪可增强被试对情绪事件的注意强度 ,尤其是新异的情绪内容较易得到识别 .在正常被试中 ,情绪词相较中性词能引起较大的新旧效应 ,抑郁症患者的新旧效应与正常人有所不同 ,但其再认成绩也能被情绪内容提高 .在研究情绪对决策行为的影响时 ,观察到内侧额叶负波 (MFN) .ERP研究表明 ,情绪活动也存在大脑功能的偏侧化效应 . 相似文献
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Recent research in concrete analysis and design has revealed that the shear capacity contributed by concrete correlates well with the neutral axis depth. While nonlinear analysis calculation of the neutral axis depth is trivial for reinforced concrete beams, it is iterative for prestressed concrete beams and does not lend itself to straightforward hand calculations. In this study, a program is developed to simulate the response of prestressed concrete rectangular sections subjected to monotonic bending taking into account cracking, yielding and ultimate states. This program is used to benchmark a simplified analytical procedure devised to perform the same task by hand. Accordingly, critical observations made to a large pool of experimental and analytical results reveal that the moment-curvature and moment-extreme fiber strain can be accurately modeled as trilinear relationships. The four key points that define the trilinear functions (initial, cracking, yielding and ultimate) may be computed analytically from simple equations derived based on consistent assumptions with the true behavior. Once the simplified analysis is performed, the computation of the neutral axis depth becomes a simple hand calculation. A parametric study was performed to further simplify the analytical procedure by computing the four key points that define the trilinear functions through linear relationships that were derived based on regression analysis of a large number of beam solutions. The neutral axis depth was calculated using the analytical and the simplified procedures for three beams with different ratios of prestressing steel and concrete strength. The results compared well with the iterative numerical procedure. 相似文献
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This study examined: (1) whether a peripheral cue and subject knowledge influenced the credibility judgments in the context of Wikipedia; and (2) whether certain factors affected heuristic processing in the context of Wikipedia. The theory of bounded rationality and the heuristic-systematic model serve as the basis of this study. Data were collected employing a quasi-experiment and a web survey at a large public university in the Midwestern United States in the fall of 2011. The study participants consisted of undergraduate students from nine courses whose instructors agreed to their participation. A total of 142 students participated in the study, of which a total of 138 surveys were useable. The major findings of this study include the following: a peripheral cue and knowledge influenced the credibility judgments of college students concerning Wikipedia. The effect of a peripheral cue on credibility judgments was not different between those with high versus low knowledge. Finally, perceived credibility was positively related to heuristic processing, but knowledge, cognitive workload or involvement in a topic was not. This study suggests that educators and librarians need to integrate heuristic approaches into their literacy programs, guiding students to effectively use and not blindly accept cues. Wikipedia needs to offer noticeable cues that can help Wikipedia readers assess the credibility of information. The role of perceptions in heuristic processing needs further investigation. Further, this study demonstrates the strength of a peripheral cue on credibility judgments, suggesting that further research is needed when cues lead to effective credibility judgments and when cues lead to biased credibility judgments. Finally, this study provides the suggestion of an integrated model of the theory of bounded rationality and the heuristic-systematic model that can enhance our understanding of heuristics in relation to credibility judgments. 相似文献