Beyond the privacy paradox: The moderating effect of online privacy concerns on online service use behavior

In the digital information era, dealing with privacy issues is problematic in related research since online activities have become an inevitable trend. Following the privacy paradox, which occurs when online services are increasingly accepted or used despite raising the level of privacy concerns of individuals, there is no need to alleviate individual privacy concerns regarding online services. Accordingly, this study aims to empirically analyze the effect of online privacy concerns, when interacting with individual innovativeness, on individual online service use behavior. For the empirical analysis, a Heckman two-step analysis is performed using South Korean data from the 2019 Korea Media Panel Survey conducted by the Korea Information Society Development Institute. The results provide evidence in contradiction of the privacy paradox. Specifically, the main findings of this study are as follows. First, use of online services and privacy concerns are not a contradictory phenomenon both in principle and behavior but can act as a negative influence or constraint. Second, individuals with high levels of innovativeness actively use online services owing to differences in their acceptance and use of innovation. Third, as online activities become more common, privacy concerns are likely to affect the level of online service use by interacting with other personality traits. As a result, privacy concerns are more likely to act as an influencing variable that moderates the degree or intensity of an individual's use of an online service rather than an independent variable for the use of an online service. The impact of privacy concerns of individuals on the use of online services identified in this study suggests there is a need for an adequate governing mechanism for privacy protection to realize service provision through e-government.     

Ⅱ-Ⅵ族三元合金薄膜生长与掺杂工艺研究现状

相对于Ⅱ-Ⅵ族二元化合物,三元合金在调节带隙宽度和晶格常数上的灵活性使其应用前景更加广阔,并有希望解决Ⅱ-Ⅵ族材料普遍存在的单极性掺杂难题而成为未来新型光电器件发展的一个重要方向.文章着重介绍了分子束外延(MBE)技术生长ZnSeTe、CdZnTe、CdSeTe等Ⅱ-Ⅵ族三元合金单晶薄膜的研究现状,分析了MBE生长三元合金时需要考虑的问题,介绍了Ⅱ-Ⅵ族半导体材料n/p型掺杂的常用元素和掺杂方式,讨论了限制Ⅱ-Ⅵ族材料有效掺杂的物理机制和三元合金在掺杂方面的研究动态,并对三元合金薄膜的发展前景进行了展望.     

专利法第33条在专利申请及审查中的重要性

专利审查部门与实务界针对《专利法》第33条规定的“修改不得超范围”原则一直存在较多分歧与争论,并且上述分歧及矛盾在某种程度上并未得到有效解决.从专利审查员的审查意见及申请人的意见陈述两个层面出发,对若干实际案例做出具体分析,目的在于表明上述分歧及矛盾并非不可调和,双方可通过在审查意见及意见陈述中合理运用专利法第33条以使申请人的利益得到切实维护.     

Trolling asymmetry toward Republicans and Democrats and the shift from foreign to domestic trolling

Online trolling toward politicians is noticeable now more than ever before. The increase in online political discourse in recent years on one hand and the increased efforts to curb the spread of trolling and disinformation on the other hand may affect trolling in opposing direction. We examine how four trolling tactics toward politicians evolved between the 2016 and 2020 US presidential election cycles. We also examine the variations in trolling toward Democrat and Republican politicians in light of the asymmetric nature of American politics. Based on thematic content analysis of 9,461 comments on tweets posted by candidates from both parties, we found differences in the extent and style of trolling tactics between the two election cycles, with a significant increase in insulting. We also found trolling asymmetry in the extent and style of trolling comments toward Republicans and Democrats. Informed by theories of online disinhibition and ideological asymmetry, we discuss the trolling asymmetry, and we explain the change in the degree of trolling tactics over time in light of the shift from the Russian trolls to domestic trolling.     

基于Moodle软件的《三维机械产品设计》课程项目化教学系统构建

针对《三维机械产品设计》课程教学中存在的问题,本文提出模块化的系统设计思想,运用Moodle软件对课程进行系统构建,并对系统构建的功能等进行详细阐述,以此结合现代教育理念提升学生对课程知识的实际运用能力。     

光催化活性TiO2薄膜的研究进展

讨论了影响TiO2薄膜光催化性能的主要因素,如TiO2薄膜的晶体结构、晶粒尺度以及薄膜表面积和厚度等。介绍了提高TiO2薄膜光催化活性的三种主要途径,包括表面预处理、复合半导体以及金属沉积。对TiO2薄膜几种重要的制备方法和应用事例进行了叙述,并展望了此功能薄膜的应用前景。     

电子焊料的工艺性能及影响因素

通过分析焊料在钎焊过程中的行为,提出了电子焊料的工艺性能主要包括熔化/固化温度、抗氧化性、润湿性和漫流性。给出了各工艺性能的定义。分析表明:相关的影响因素主要包括合金的组成、纯度和化学均匀性;母材的成分、性质和表面的洁净度;液态焊料的表面张力;钎焊温度、气氛、助焊剂的活性;液态焊料表面膜的组成、结构和性能等。     

“虚实结合”的EDA课程设计实验教学案例

为提高学生的工程实践能力,我校EDA课程设计结合自研在线教学平台,采用案例式教学方式,锻炼和培养学生对EDA开发工具综合运用的能力和动手实践能力。EDA课程案例包括Matlab设计仿真、Modelsim仿真及D/A电路设计调试等EDA完整工程设计流程,线上实验平台提供远程硬件调试功能,学生可以随时随地通过线上实验平台对设计进行验证并与教师进行在线交流。该案例的成功实施有助于虚实结合的实践教学方法探索。     

石墨烯纳米间隙电极对的制备研究进展

石墨烯的高晶体质量、高电导率、单层结构以及与有机半导体的良好兼容性使其成为纳米器件和分子器件的理想电极材料,纳米间隙电极对是构筑纳米器件的基础,发展了两种制备石墨烯纳米间隙电极对的方法——纳米线和金丝交替掩膜法以及原子力针尖裁剪法,其过程简单,制备的石墨烯间隙为100～200 nm.石墨烯纳米间隙电极对是制备纳米器件、...     

BST薄膜铁电移相器研究进展

钛酸锶钡(BST)薄膜因其具有高的介电调谐量,相对低的损耗tgδ和快的开关速度,在微波移相器的应用中显示出巨大优势。介绍了改善BST薄膜的介电性能的有效方法,衬底材料的选择,以及BST薄膜铁电移相器的结构类型和研究进展。