中国二元经济结构转换与宏观经济政策调整

通过观察本文所构造的＂综合二元对比系数＂的指标变化趋势可以发现,1978年改革开放以来,我国二元经济结构的强度不但没有下降,反而出现了总体上升态势。究其根源,兼具城市偏向性和非连续性的宏观经济政策导向应该是重要原因。因此,在化解城乡矛盾、消除二元经济特征的过程中,变城市偏向性和非连续性的宏观经济政策导向为均衡性和连续性导向,应该成为宏观经济政策调整的基本指向。     

高校青年教师心理问题及调控对策

随着高等教育的不断改革与发展,学生的心理与行为直接或间接受高校教师心理健康状况所影响,青年教师心理问题已引起高等教育管理者的广泛关注。在阐述高校教师心理健康的重要性基础上,分析了新形势下高校青年教师的心理现状。缓解高校青年教师心理问题,要改变认知,正视压力;建立和谐的人际关系,主动寻求社会支持。     

一种射频大功率放大器电源偏置电路设计方法（英文）

设计射频大功率放大器时,为了传输大的电源电流而加宽的λ/4电源偏置微带线往往不能很好的对偏置电路和信号电路进行隔离,从而影响放大器的性能。本文对一种采用加厚微带线设计λ/4电源偏置电路的方法进行了分析,并根据一种卫星数传发射机的功率放大器设计要求,分别采用本文介绍的方法和传统方法设计了两个功率放大器,给出了分析和试验结果,结果表明加厚λ/4偏置微带线可以比传统方法令功率放大器获得更高的性能,具有较大参考意义。     

Considerations for development and use of AI in response to COVID-19

Artificial intelligence (AI) is playing a key supporting role in the fight against COVID-19 and perhaps will contribute to solutions quicker than we would otherwise achieve in many fields and applications. Since the outbreak of the pandemic, there has been an upsurge in the exploration and use of AI, and other data analytic tools, in a multitude of areas. This paper addresses some of the many considerations for managing the development and deployment of AI applications, including planning; unpredictable, unexpected, or biased results; repurposing; the importance of data; and diversity in AI team membership. We provide implications for research and for practice, according to each of the considerations. Finally we conclude that we need to plan and carefully consider the issues associated with the development and use of AI as we look for quick solutions.     

Effect of publication month on citation impact

A standard procedure in citation analysis is that all papers published in one year are assessed at the same later point in time, implicitly treating all publications as if they were published at the exact same date. This leads to systematic bias in favor of early-months publications and against late-months publications. This contribution analyses the size of this distortion on a large body of publications from all disciplines over citation windows of up to 15 years. It is found that early-month publications enjoy a substantial citation advantage, which arises from citations received in the first three years after publication. While the advantage is stronger for author self-citations as opposed to citations from others, it cannot be eliminated by excluding self-citations. The bias decreases only slowly over longer citation windows due to the continuing influence of the earlier years’ citations. Because of the substantial extent and long persistence of the distortions, it would be useful to remove or control for this bias in research and evaluation studies which use citation data. It is demonstrated that this can be achieved by using the newly introduced concept of month-based citation windows.     

Facial Similarity Mitigates the Persuasive Effects of Source Bias: An Evolutionary Explanation for Kinship and Susceptibility to Influence

This research examined how the interaction between a source's facial similarity to message targets and communicated bias affects audience persuadability. We used an evolutionary explanation to hypothesize that biased sources would elicit less favorable attitudes than unbiased sources for dissimilar sources, but that this difference would be absent for similar sources. Predictions were supported by results from a 2 (facial similarity) × 2 (source bias) experiment, in which an unrecognizable percentage of participants' photographs (n = 94) was digitally morphed with a source's face to act as a kinship cue. Further, structural equation modeling demonstrated a direct effect of facial similarity on attitude independent of mediation by source liking and appraisals, providing further evidence that susceptibility to influence from facially similar sources may have evolutionary origins.     

数据过滤算法的一种改进

本文深入地分析了Xuri Yin等人提出的一种数据过滤算法，指出其中欠缺之处，并对该算法作了改进和理论分析。     

Deciding How to Deceive: Differences in Communication and Detection Between Good and Bad Liars

To study deception, participants were randomly assigned the role of allocator or recipient in an ultimatum negotiation game. Allocators “earned” 7 dollars and divided the money between themselves and recipient and communicated the decision either face-to-face or through text chat. Recipients were unaware the amount the allocator had, and therefore, allocators could deceive. Most allocators used deception. We hypothesized that participants who self-identified as good liars would communicate more face-to-face than through text chat when deceiving, and this was supported for deceptive omission but not fabrications. Good liars were more likely to have their truths correctly detected than bad liars.