Vehicular ad hoc network is a multihop mobile wireless communication network that can realize many vehicle-related applications through multitop communication. In the open wireless communication environment, security and privacy protection are important contents of VANET research. The most basic method of VANET privacy protection is anonymous authentication. Even through, there are many existing schemes to provide anonymous authentication for VANETs. Many existing schemes suffer from high computational cost by using bilinear pairing operation or need the assistance of the trust authorities (...) during the authentication process or rely on an ideal tamper-proof device, which requires very strong security assumption. In this study, an anonymous authentication and key negotiation scheme by using private key and group key is proposed, which is based on pseudonym using the nonsingular elliptic curve. In this scheme, there is no third party trust center to participate in the authentication, there is no need to query the database, and there is no need of the local database to save the identity information of many vehicles, which reduce the storage space and the authentication time compared with other schemes. The proposed scheme only needs realistic TPDs. In the proposed scheme, TPDs do not need to preinstall the system key as many other schemes do; hence, the failure of a single TPD does not affect the security of the entire system. The security of the scheme is proved under the random oracle model. Compared with the related schemes using bilinear pairings, the computational cost and communication cost of the proposed scheme are reduced by 82% and 50%, respectively. (shrink)

Reinforcement learning relies on the reward prediction error (RPE) signals conveyed by the midbrain dopamine system. Previous studies showed that dopamine plays an important role in both positive and negative reinforcement. However, whether various reinforcement processes will induce distinct learning signals is still unclear. In a probabilistic learning task, we examined RPE signals in different reinforcement types using an electrophysiology index, namely, the feedback-related negativity (FRN). Ninety-four participants were randomly assigned into four groups: base (no money incentive), positive reinforcement (presentation (...) of money rewards), negative reinforcement (removal of money losses), and combined reinforcement (money rewards and removal of money losses) groups. In addition, in order to evaluate the engagement of emotional activity in the different reinforcement processes, Positive and Negative Affect Schedule-Expanded Form (PANAS-X) scales were applied before and after the experiment to detect the emotional changes. The results showed that there was no difference between groups in the dopamine-related learning bias. However, compared to the other three groups, negative reinforcement elicited smaller FRN (the difference-wave measure) during the learning, stronger positive affect and joviality, and less fatigue after the learning, in which the difference between the negative and positive reinforcement groups was smaller. The results indicated that pure avoidance motivation may induce distinct emotional fluctuations, which influence the feedback processing. (shrink)

In a sample of 522 police officers and staff in an English police force, we investigated the role of authoritarian leadership in reducing the levels of employee ethical voice. Drawing upon uncertainty management theory, we found that authoritarian leadership was negatively related to employee ethical voice through increased levels of felt uncertainty, when the effects of a motivational-based mechanism suggested by previous studies were controlled. In addition, we found that the negative relationship between authoritarian leadership and employee ethical voice via (...) felt uncertainty is mitigated by higher levels of benevolent leadership. That is, when authoritarian leaders simultaneously exhibit benevolence, they are less likely to cause feelings of uncertainty in their followers who are then more likely to speak up about unethical issues. We discuss theoretical and practical implications of the findings. (shrink)

为展示中国当代文艺学理论的总体实力和水平，集中体现当代中国文艺理论家的理论观点，供读者学习、研究，我社策划出版一套丛书，内容为中国当代文艺学大家的代表性理论思想及研究文章，以期对文艺学思想的创造性成果 进行总结，对文艺学的理论价值进行建构。本丛书共十册，拟于2019年整套推出。选定人员也是在这方面有突出成就的专家、学者，有钱谷融、童庆炳、徐中玉、钱中文、王元骧、陆贵山、李衍柱、孙绍振、刘再复和陈伯海 10人。.

Cross-sector relationship building is an important strategy in corporate social responsibility initiatives, and communicating cross-sector relationships on social media can help raise the visibility of collaborative relationships. A noticeable gap in the literature is how social media enables and constrains the formation patterns of cross-sector connections. To understand how businesses communicate their relationships with government agencies and nonprofits about social issues on social media, we propose a theoretical framework that centers public attention as a critical resource and considers different sectors' (...) interests in the COVID-19 issue. We tested this framework with a nationally representative sample of 1,980 organizations on Twitter. The analysis reveals that the increase in public attention to the COVID-19 issue was accompanied by a greater likelihood of cross-sector ties. Specifically, firms severely affected by COVID-19 were more likely to build ties with government agencies, and the increase in public attention also drove firms to build more ties with nonprofits, especially advocacy nonprofits. Our findings suggest managers of social media communication should observe the volatile public attention and design communicative strategies accordingly. (shrink)

I propose and argue for an account of humility in Zhuangzi, which I call perspectival humility. In the opening of the article, I will present a view of humility found in pre-Qin Confucian texts; then, I will explain the idea of Zhuangist humility, which provides a contrast to Confucian humility. Zhuang Zhou does not think that any ideas of right and wrong can be absolutely correct. People must see that their beliefs may not be absolutely correct, and should always consider (...) alternative perspectives. Those who recognise the limitations of their perspective are led to perspectival humility. Moreover, perspectival humility encourages people to learn extensively and to harmonise the differences between other perspectives. The Zhuangist approach takes various perspectives into account and is an inclusive notion of humility that prompts people to appreciate different ways of life, engages in harmonious social relationships, and preserves cultural diversity. (shrink)

As one of the basic elements in acoustic events, timbre influences the brain collectively with other factors such as pitch and loudness. Research on timbre perception involve interdisciplinary fields, including physical acoustics, auditory psychology, neurocognitive science and music theory, etc. From the perspectives of psychology and physiology, this article summarizes the features and functions of timbre perception as well as their correlation, among which the multi-dimensional scaling modeling methods to define timbre are the focus; the neurocognition and perception of timbre (...) are outlined; related experiment findings on the deeper level of timbre perception in terms of neural cognition are summarized. In the meantime, potential problems in the process of experiments on timbre perception and future possibilities are also discussed. Thought sorting out the existing research contents, methods and findings of timbre perception, this article aims to provide heuristic guidance for researchers in related fields of timbre perception psychology, physiology and neural mechanism. It is believed that the study of timbre perception will be essential in various fields in the future, including neuroaesthetics, psychological intervention, artistic creation, rehabilitation, etc. (shrink)

Ben shu de zhu yao nei rong shi chan shu zhe xue de te shu de li lun xing zhi he du te de huo dong fang shi,Bing tong guo ju ti lun zheng zhe xue dui gou cheng si xiang de ji ben xin nian,Ji ben luo ji,Ji ben fang shi,Ji ben guan nian,Zhe xue li nian de qian ti pi pan,Zhan xian zhe xue fa zhan de zi wo pi pan de huo li he yong bu ku jie (...) de li lun kong jian. (shrink)

During the past four decades, China has gone through rapid urbanization and modernization. As people adapt to dramatic sociodemographic shifts from rural communities to urban centers and as economic level rises, individualistic cultural values in China have increased. Meanwhile, parent and child behavior in early childhood has also evolved accordingly to match a more individualistic society. This mixed-method study investigated how social change in China may have impacted parenting goals and child development in middle childhood, as seen through the eyes (...) of the current generation of mothers. Thirty mothers of fifth-grade elementary school students from Shenzhen, China were recruited and took part in semi-structured interviews. Participants answered questions and provided examples about their children’s life, their own childhood, and the perceived differences between the two generations. Participating mothers were also asked to rate which generation, themselves or their parents, cared more about the childrearing goals of academic competitiveness and socioemotional well-being. Using both qualitative and quantitative analysis, we expected and found an intergenerational increase in the perceived value mothers placed on individualistic traits: current mothers care more about their children’s academic competitiveness, personal happiness, and social adjustment, compared to their experience of their own mothers’ attitudes during their childhood a generation earlier. They also experience conflict between their children’s academic competitiveness and socioemotional well-being. As a function of both urbanization and increased economic means, children’s collectivistic family responsibilities for essential household chores have declined as the importance of schoolwork has increased. (shrink)

本书在对中西交汇尤其是在对近代德国理性主义哲学反思的比较视野中,努力呈现唐君毅的道德人格思想,考察他在对传统儒家伦理道德思想的继承,发展和现代性新生转进中的努力.

This chapter contains sections titled: Political or Ethical? Opposition to Hobbes: You Shall Not Commit Murder Opposition to John Locke: Restoration of Paternality Opposition to Hume: Morality Presides over the Work of Truth Freedom and the Priority of Responsibility Justice and the Third Party Pluralism and Peace Endnotes.

A case study of multimodal systems and a new interpretation of Charles S. Peirce's theory of reasoning and signs based on an analysis of his system of ...

本书内容涵盖执政党的政策与法律的关系,法的阶级性与社会性的关系,马克思主义关于法的概念和本质的基本原理,法是“理”与“力”的结合,法的作用与价值,民主与法制的关系,依法治国的治国方略以及对有关法学思潮 的评析等。.

v.1. zhe xue de mu guang -- v.2. shu ren de shi jie -- v.3. tan suo zhen shan mei -- v.4. chong gao de wei zhi -- v.5. zhe xue guan yan jiu -- v.6-7. bian zheng fa yan jiu -- v.8-9. zhe xue tong lun.

PurposeDespite the number of studies on abusive supervision and voice, there is still limited knowledge on why individuals refrain themselves from information sharing. Moreover, very little is known on when individuals become cynical and when they do not under abusive supervision. Hence, to address the existing gaps in the literature this study aims to investigate the moderating role of positive reappraisal on the link between abusive supervision and cynicism; the associations between cynicism and two forms of voice, promotive and prohibitive; (...) and the mediating effect of cynicism on the relationship between abusive supervision and voice.Design/methodology/approachWe conducted a survey among 685 highly skilled employees and their immediate supervisors in manufacturing companies. Among the 685 responses, we excluded 258 incomplete questionnaires and thus analyzed a total of 427 responses. Hierarchical regression analysis and structural equation modeling were utilized to assess the validity of the hypotheses.FindingsThe findings indicate that positive reappraisal moderates the link between abusive supervision and cynicism; furthermore, cynicism is negatively related to promotive voice and mediates the relationship between abusive supervision and promotive voice. Moreover, the results reveal that the association between cynicism and prohibitive voice is nonsignificant and that cynicism does not mediate the link between abusive supervision and prohibitive voice.Originality/valueThis study is the first to provide empirical evidence on the moderating role of positive reappraisal on the relationship between abusive supervision and cynicism, the association between cynicism and promotive voice and the mediating role of cynicism on the link between abusive supervision and promotive voice.Future research directionsWe recommend that future research consider other forms of voice, such as acquiescent and prosocial voice, in investigating the links between cynicism and employee voice. (shrink)

Ben shu wei wo she chong dian tu shu hua xia wen ku ru xue shu xi zhong di yi ben. Gai shu yi jian ming de wen zi gou le le Gu Yanwu, Wang Fuzhi, Huang Zongxi san wei Ming mo da ru sheng huo de shi dai bei jing, hong ru de sheng ping jing li, ta men de xue shu zao yi (zhu yao zhi ta men zai ru xue fang mian de cheng jiu), cheng yu jiao (...) you yi ji san wei zai li shi shang de di wei he gong xian, ta men ren sheng de kan ke du lai ling ren bu sheng xi. (shrink)

BackgroundDue to causing inability of self-regulation and executive functions such as directed attention and visual searching for relevant information, mental fatigue impairs skilled performance in various sports. On the other hand, natural scenes could improve directed attention, which may considerably benefit visual searching ability and self-regulation. However, nature exposure as a potential intervention to improve skilled performance among mentally fatigued athletes has not been discussed thoroughly.PurposeTo propose the potential intervention for the impairment of skilled performance among mentally fatigued athletes and (...) generate a framework for future studies.MethodsA narrative review was applied to search broadly across disciplines, retrieving literature from several databases.ResultsThirty-three works of literature including 39 experiments were obtained. Finally, a conceptual framework was built regarding the effect of nature exposure intervention on skilled performance in athletes for future studies.ConclusionThree theories could be potentially integrated to be a conceptual framework and explain the mechanism of preventing prior mental exertion. Future studies could examine more on the duration of the intervention. (shrink)