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51.
分析了装甲装备保障专业士兵职业技能鉴定平台在使用过程中存在的组卷质量问题,对鉴定考核的组卷过程进行了阐述并建模,提出了改进的遗传算法作为组卷算法,实现了快速、高质量组卷的目的。 相似文献
52.
Paul S.N. Lee Clement Y.K. So Francis Lee Louis Leung Michael Chan 《Telematics and Informatics》2018,35(7):1949-1957
Social media, as a subaltern public sphere (Fraser, 1990), have a democratic function in providing an alternative platform for minorities and marginalized to defy mainstream discourses in the public sphere. However, social media have been found to have an echo chamber effect, which may be detrimental to democracy. They may help to accelerate the ascendancy of a “post-truth” era in which objective facts are less influential in shaping public opinion than appeals to emotion and personal belief. A study on political polarization, however, showed that selective exposure and avoidance in social media are weak indicators of polarization (Johnson et al., 2017). This study examines the role of social media in democracy and partisan politics. The authors considered that despite the echo chamber effect, social media have a limited part to play in the formation of polarized stances compared with other factors, such as demographics, political orientation, and mass media use. The study tested two main hypotheses: H1: Social media use is associated with political stance that is marginalized in the mainstream media; H2: Political orientation has a stronger relationship than social media use with the stance toward political values and social issues.The results supported both hypotheses. Social media are associated with political stance that is marginalized in the mainstream media. However, when compared with other factors, the relationship between social media and stance becomes less obvious. Although the echo chamber effect may reinforce the original stance, social media do not exhibit a strong relationship with the stance toward political values and social issues. Partisan orientation and use of partisan mass media are found to have stronger links with variations in stance. Social media, however, provide a subaltern public sphere for those excluded from the dominant public sphere, thus extending the public sphere to accommodate multiple opinions and perspectives. 相似文献
53.
In 1945 Frederick Thorne, editor of the Journal of Clinical Psychology, proposed to limit the acceptance of Jewish applicants to clinical psychology graduate schools. A public scandal erupted over this proposed limit, which was modeled on Jewish quotas in medical education. Criticized by the mass media and most psychologists, Thorne’s proposal was repudiated by the Eastern Psychological Association and the Society for the Psychological Study of Social Issues. Using private correspondence, oral histories, and published articles, this mostly forgotten episode in the history of clinical psychology is recreated. It is argued that the 1945 campaign against Jewish quotas prepared activists for the 1950s campaign against racial segregation and the Brown v. Board of Education Supreme Court case. Because the participants in 1945 came from all specialties in psychology, it is suggested that this story is of significance to the field as a whole, rather than just to historians of social issues. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
54.
介绍了我国职业技能鉴定的制度管理体系及考试模式,对电力行业职业技能鉴定中存在问题进行了分析,提出了解决办法和措施。 相似文献
55.
介绍了蒸压加气混凝土砌块的材料特性及作用机理,并详细阐述了蒸压加气混凝土砌块干法施工的工艺流程和操作要点,结合具体工程实例,得出蒸压加气混凝土砌块性能优越,干法施工成套技术先进,有着广阔的发展应用前景。 相似文献
56.
57.
田育丰 《成都电子机械高等专科学校学报》2009,12(1):34-37
在当前教育改革的进程中,职业教育不仅要注重培养和提高学生的实践操作技能。更要培养和提高学生的智力技能,培养学生作为全面发展的人所需要的素质。 相似文献
58.
本文阐述了社会性软件的概念及其主要研究情况,结合社会性软件的特点及其与复杂网络的联系,介绍了复杂网络的相关概念和特性,讨论了一个基于复杂网络而构建的学习网络模型. 相似文献
59.
Unannounced evacuation experiments in a cinema theatre were analysed. The analysis focused on investigating if people are influenced by others during the initial phase of a fire evacuation. This type of influence is called social influence. Three separate behaviour types were identified and studied and the recognition and pre-movement time was measured. The results suggest that social influence is an important factor and that it becomes more important when the fire cue, e.g., the alarm, is unclear or uninformative. Results also indicate that social influence increases with decreasing distance between visitors. This result implies that individuals are influenced more by people who are close than by people who are further away. 相似文献
60.
朱学宁 《广东水利电力职业技术学院学报》2015,(2):41-44
在课程开设同质化背景下,实训教学的质量制约着高职英语专业学生的技能水平的高低,同时决定了办学特色,而实训教学质量的高低又取决于实训教学是否成体系、是否得到优化。研究以可雇用性为出发点,基于小样本分析,考察高职英语专业技能培养的着力点,探讨构建"一个核心,两个基点,三象维度,四种能力"立体网络化实训体系的必要性和可能性,以及构建的原则、思路和途径。 相似文献