试论社会考试公信力建设

本文以开展社会考试公信力建设必要性与可行性的论述为基础,详细阐述了开展社会考试公信力建设的主要内容与具体途径,对社会考试公信力建设具有一定的前瞻性和指导价值。     

温室气体及其排放的研究

本文对主要的温室气体及其源、汇、环境效应、减排措施进行了研究。温室气体主要指CH4、CO2、N2O、CFCs等,其中CH4、N2O和CFCs不仅是温室气体,而且在平流层中会玻坏臭氧层。自工业革命以来,大气中温室气体排放源的增加及汇的降低导致了全球气候变暖,严重地威胁着人类赖以生存的环境——地球。     

多普勒效应的统一数学方法

给出了多普勒效应的统一推导方法,得出了多普勒效应的一般公式,多普勒效应的四种情况都是该公式的特例,并推广到电磁现象。     

Inside the source selection process: Selection criteria for human information sources

Co-workers are an important source of information in organizations. Consequently, information managers seek to facilitate the use of such human information sources. Although various studies about what influences the use of human information sources in organizations exist, it is difficult for information managers to utilize insights from this research body. The studies have provided contradictory results regarding the role of accessibility and quality and suffer from various weaknesses. To address these weaknesses, several studies are employing other research methods. This study aims to contribute to the methodological development of this emerging new line of research by exploring the value of a think aloud approach to such studies. In addition, it aims to provide more insight into the role of accessibility and quality in the selection of human information sources in organizations. Fifty-six employees from four governmental organizations were asked to think aloud while selecting human information sources. The findings of this study corroborate those of studies taking a similar approach: source quality is the most dominant factor in the selection of human information sources. The think aloud approach seems a valuable contribution to available research methods to assess the role of accessibility and quality in human source selection in organizations.     

一曲匡正人性的悲歌——解读陈昌平中篇小说《肾源》中的人性探索

时人性的探索是文学创作中的永恒话题.陈昌平的中篇小说<肾源>中展示的性善与性恶的斗争.深刻、感人,为探讨新时期人性的创作提供了又一成功的范例.     

开源软件对数字图书馆建设的有关问题与对策

本文从开源软件特性及应用于数字图书馆建设方面入手,分析使用开源软件存在的问题,最后对我国图书馆使用开源软件提出了建议。     

全运会兴奋剂事件对我国体育公信力的影响

全运会是我国第一大体育赛事,在商品经济的刺激下,全运会蓬勃发展,但就是在商业利益的驱动下,全运会却在某些方面逐渐背离了当初的发展准则,摒弃了＂公正、和谐、公平＂的体育道德原则,巨大的诱惑让某些运动员丧失了理智走向歧途。＂兴奋剂＂使神圣的运动会陷入危机。从深层来看,全运会的兴奋剂事件实际上是我国体育公信力的一次信任危机。     

试论图书馆使用开源软件的益处及注意事项

开源软件以“信息共享、源代码共享”为宗旨。在图书馆建设中应用开源软件有利于图书馆员掌握软件开发的核心技术,并促进软件的逐步成熟,同时能降低相关费用,加强图书馆之间的合作。在图书馆推广开源软件应注意对开源软件许可证的比较研究、遵守许可使用规则、强调标准化以及化解法律风险等问题。     

When do details matter? News source evaluation summaries and details against misinformation on social media

News source evaluations based on fact-checking can help curb the consumption and spread of fake news on social media. Prior research has primarily considered source evaluations with intuitive icons that indicate whether or not news sources are reputable. But can we increase the power of these icons by adding more detailed information about the evaluation that explains the reasons for the icon? What additional benefit would such evaluation details bring? Would they have the same effect for both positive and negative evaluations? We conducted two online experiments to understand the effects of a source evaluation icon (a positive or negative summary of the evaluation) and more detailed evaluation information explaining the reasons for the icon. Our results show an asymmetric effect of positive and negative icons and details. Negative icons reduced the believability of the articles, but adding evaluation details supporting the icon had no additional effect. In contrast, positive icons had no significant effects, but adding evaluation details significantly increased believability. We also found that users were more likely to view the evaluation details when the content of the article aligned with their pre-existing opinions, but the valence of the icon (positive or negative) did not affect this decision.     

Source extension based on ε-entropy

It is known by entropy theory that image is a source correlated with a certain characteristic of probability. The entropy rate of the source and ? entropy (rate-distortion function theory) are the information content to identify the characteristics of video images, and hence are essentially related with video image compression. They are fundamental theories of great significance to image compression, though impossible to be directly turned into a compression method. Based on the entropy theory and the image compression theory, by the application of the rate-distortion feature mathematical model and Lagrange multipliers to some theoretical problems in the H.264 standard, this paper presents a new the algorithm model of coding rate-distortion. This model is introduced into complete test on the capability of the test model of JM61e (JUT Test Model). The result shows that the speed of coding increases without significant reduction of the rate-distortion performance of the coder.