What does it mean to trust blockchain technology?

This paper argues that the widespread belief that interactions between blockchains and their users are trust-free is inaccurate and misleading, since this belief not only overlooks the vital role played by trust in the lack of knowledge and control but also conceals the moral and normative relevance of relying on blockchain applications. The paper reaches this argument by providing a close philosophical examination of the concept referred to as trust in blockchain technology, clarifying the trustor group, the structure, and the normatively loaded nature of this trust relation. The paper ends by critically reflecting on two of the most promising values (decentralization and transparency) that can invite users’ trust in blockchain technology, arguing that there is a tension between the pressing values that are intended to be achieved by developers and the predicament situations caused by current blockchain implementations.     

The Language of Thought and The Embodied Nature of Language Use

Philosophical Studies -     

Different Effects of Paternal and Maternal Attachment on Psychological Health Among Chinese Secondary School Students

Many studies have demonstrated the beneficial effects of parental attachment on adolescent development. However, few studies have specifically investigated the different effects of paternal attachment and maternal attachment on adolescent development. The current study examined the different effects of paternal attachment and maternal attachment on adolescent psychological health (e.g., self-esteem, depression, life-satisfaction), and the moderating roles of gender, age, and one-child status. Participants were 1506 secondary school students (50.2 % male, grades 7–12) from six regions of China. Results suggested that paternal attachment had stronger effects on adolescents’ depressive symptoms than did maternal attachment after controlling for all covariates (e.g., family setting, gender, grade, one-child status, father’s and mother’s education levels). Moreover, multi-group analysis indicated that the stronger impact of paternal attachment on depressive symptoms in comparison to maternal attachment was only evident in high school boys and only children. This study demonstrated the important role of father–adolescent attachment in adolescent psychological health. Future research, clinical implications, and limitations of the present study are discussed.     

When Anxiety Symptoms Masquerade as Medical Symptoms: What Medical Specialists Know about Panic Disorder and Available Psychological Treatments

Under-recognition of somatic symptoms associated with panic in primary care settings results in unnecessary and costly diagnostic procedures and inappropriate referrals to cardiologists, gastroenterologists, and neurologists. In the current study specialists’ knowledge regarding the nature and treatment of panic were examined. One-hundred and fourteen specialists completed a questionnaire assessing their knowledge about panic attacks, including their perceptions of psychologists’ role in treating panic. Respondents answered 51% of knowledge items correctly. Although most knew the definition of a panic attack, they knew less about clinical features of panic and its treatment. Specifically, whereas 97.4% believed medication effectively relieves panic symptoms, only 32.5% knew that cognitive-behavioral therapy (CBT) is a first-line treatment. Only 6% reported knowing how to implement CBT, and only 56.1% recognized that psychologists could effectively treat panic. These findings demonstrate significant gaps in specialists’ knowledge about panic and the need to enhance physician knowledge about panic attacks and their treatment.     

高二理科生物理问题创造性解决的表象特征研究

物理问题创造性解决是一个发散思维和聚合思维交替运行的过程,而表象对问题的创造性解决具有重要作用。本研究通过自编的物理问题对天津市某中学109名高二理科学生进行物理问题创造性解决测验,探讨高中理科学生物理问题创造性解决中的表象特征。验证了表象与物理问题创造性解决中的发散思维具有显著的正相关,与聚合思维无显著相关。对109名高二理科学生K聚类分析发现：物理问题解决过程中,高创造性和中等程度创造性的学生人数较少,而低创造性的学生人数较多;表象丰富性很高和较高的学生较少,表象丰富性较低的学生较多。     

西方诚信度测验研究述评

诚信度测验是指在招聘和选拔过程中用于评价应聘者的诚实、诚信、可依靠性,从而预测他们的偷盗、违反纪律、反工作行为以及今后工作业绩的以纸笔测验为主的测验工具。文章对西方诚信度测验的发展和应用现状做出了综述,指出诚信度测验具有较好的信度和效度。大五人格模型中的责任感、宜人性和情绪稳定性是诚信度测验潜在的测量内容,但诚信度测验与大五人格模型以外的其它人格维度也存在较高的相关性。诚信度测验对反工作行为和整体工作绩效具有良好的预测效度。文章在总结诚信度测验存在的一些争议和问题的基础上,提出了它在中国企业员工招聘和选拔中应用的若干建议     

PAPP-A水平及IVS6+95多态性在预测PCI术后再狭窄的价值

对超敏C反应蛋白(hs-CRP)、妊娠相关蛋白A(PAPP-A)及IVS6+ 95 (C/G)基因多态性预测不稳定型心绞痛(UAP)患者经皮冠状动脉成形术(PCI)术后再狭窄的意义进行探讨.UAP患者行PCI术(TIMI血流达到3级),3个月～9个月复查冠脉造影,选取血管腔内径狭窄≥75％者(再狭窄组)86例、无再狭窄组(对照组)152例,测定术前术后24 hPAPP-A、hs-CRP水平.采用基因测序法分析IVS6+ 95多态性.再狭窄组术后血清PAPP-A、hs-CRP水平较本组术前明显增高(P＜0.001).对照组术后血清PAPP-A、hs-CRP水平较本组术前明显下降(P＜0.001).再狭窄组IVS6+ 95中CC基因频率明显高于未发生组(P＜0.05),而等位基因C频率无明显差异.PCI术后PAPP-A、hs-CRP血清水平可作为预测冠脉再狭窄的指标,IVS6+95(C/G)多态性可能与术后再狭窄有关,其中基因型CC是致病的基础.     

Grand Theft Auto IV comes to Singapore: effects of repeated exposure to violent video games on aggression

Given the increasingly dominant role of video games in the mainstream entertainment industry, it is no surprise that the scholarly debate about their impact has been lively and well attended. Although >100 studies have been conducted to examine the impact of violent video games on aggression, no clear consensus has been reached, particularly in terms of their long-term impact on violent behavior and aggressive cognitions. This study employs a first-ever longitudinal laboratory-based experiment to examine longer-term effects of playing a violent video game. One hundred thirty-five participants were assigned either to the treatment condition where they played a violent video game in a controlled laboratory setting for a total of 12 hours or to the control group where they did not play a game. Participants in the treatment group played Grand Theft Auto IV over a period of 3 weeks and were compared with a control group on the posttest measures of trait aggression, attitudes toward violence, and empathy. The findings do not support the assertion that playing a violent video game for a period of 3 weeks increases aggression or reduces empathy, but they suggest a small increase in proviolence attitudes. The implications of the findings are discussed.