新冠肺炎疫情下专业图书馆科研新媒体服务探究——以中国科学院文献情报中心“中国科讯”为例

[目的/意义] 以中国科学院文献情报中心"中国科讯"为例，分析专业图书馆应急科学传播服务的举措及成效，为应急事件下专业图书馆科学传播服务提供借鉴。[方法/过程] 梳理新冠肺炎疫情期间"中国科讯"微信公众号推送的服务内容，从日均用户增长和阅读量分析用户对不同类型内容的关注程度，提出应急科学传播服务的思考。[结果/结论] 疫情期间，"中国科讯"日均用户增长明显，电子资源保障类内容阅读量最高，其次为新冠病毒科技攻关进展相关内容、科普类直播和信息素养教育直播观看人数达到数万人。应急事件下，专业图书馆应加强特色服务的宣传、加强信息甄选和审核机制，重大公共卫生事件下应急科学传播工作预案缺失也需引起重视。     

电大人才培养模式改革重在教育创新

教育创新是现代远程开放教育的发展动力与不竭之源。本文就深入开展“中央电大人才培养模式改革和开放教育试点”过程中如何坚持教育创新问题 ,从理论和实践上进行一些有益探索 ,供试点项目研究参考。     

科技期刊版权页信息的统计分析

对129种科技期刊的版权页信息进行了分类统计与分析。结果表明：科技期刊版权页的信息十分丰富。从总体看，编排的标准化程度比较高，但仍有部分期刊对部分信息提供不足。另外，所统计期刊的版权页上的信息量远多于国家标准的规定，这些信息不是多余的，而是很重要的。提出了适当增加版权页信息总量和统一固定的编排位置的建议。     

WT0条约群与国际条约文献的检索利用

国际条约是WTO多边贸易规则研究和实践的重要国际法资料。文章详细介绍了重要的条约文献汇编体系,提供了获取条约全文资料的检索途径和方法。     

正交分解定理在回归分析中的应用

正交分解定理是泛函分析中的一个基本定理，有着广泛的应用。应用该定理确定多元回归方程系数，建立多元回归方程，并以一元回归方程作为应用例证，可以得到满意结果。     

Acculturation orientations of competing host communities toward valued and devalued immigrants

This study explored how members of competing host communities may endorse different acculturation orientations towards valued and devalued immigrants settled in the bilingual city of Montreal. Francophone (N=422) and Anglophone (N=401) host community students from low-, medium- and high-ethnic diversity colleges completed the host community acculturation scale (HCAS) along with a questionnaire monitoring a range of social psychological correlates of acculturation orientations. Results showed that Anglophones were more integrationist and individualist and less assimilationist than Francophones. Both Francophones and Anglophones were more integrationist and individualist and less assimilationist, segregationist and exclusionist toward valued than devalued immigrants. Attending a multiethnic college had no influence on respondents’ acculturation orientations. The more welcoming acculturation orientations of Anglophones compared to Francophones was corroborated by results obtained with immigrants attending the French and the English colleges. Social psychological profiles of the respective acculturation orientations were similar across both host communities thus supporting the construct validity of the HCAS. Attitude toward co-national outgroup was a significant determinant of each acculturation orientations, suggesting that intergroup relations between rival host communities has an impact on acculturation orientations toward immigrants.     

惩罚与挫折教育对优化公安院校学生警体心理素质的思考

公安民警作为社会特殊角色,决定其必须承受更大的心理压力.公安院校的警体教育具有与其实际工作相衔接的特点,其教学指导思想应为公安实际服务,有必要实施"惩罚与挫折"教育,培养与提高公安院校学生的警体心理素质,为适应未来需要奠定坚实基础.     

用Photoshop cs2的Bridge提升影像图片效果

本文根据作者的使用体会,结合图片的操作过程和操作效果,主要对Bridge的新界面、新增工作空间、文件的显示方式、等级评分、加标签等几个常用功能进行了介绍,以期能为各位摄影师浏览作品提供使用指导。     

骨骼肌基因转移系统的建立

以EGFP为标记基因，利用重新构建的pAV-EGFP质粒，采用直接注射方法，进行了离体和在体基因转移研究。实验结果显示，经脂质体包裹后，质粒可以有效地进行细胞转移；DNA表达载体肌肉直接注射后，利用共聚焦显微镜可以在注射点周围的肌细胞观察到绿色荧光蛋白；而在对侧肢PCR和共聚焦显微镜的结果均为阴性。实验结果表明，肌肉直接注射DNA可以在肌肉得到表达，将会为治疗肌肉损伤带来新的方法。     

Investigation of Poor Academic Achievement in Children with Duchenne Muscular Dystrophy

Duchenne Muscular Dystrophy (DMD) is a neurogenetic developmental disorder that presents with progressive muscular weakness. It is caused by a mutation in a gene that results in the absence of specific products that normally localize to muscle cells and the central nervous system (CNS). The majority of affected individuals have IQs within the normal range, generally with lower verbal than performance IQ scores. Prior work has demonstrated selective deficits on tests of verbal span and immediate memory. For the current study, 26 boys with DMD (and normal intellectual function) and their unaffected siblings were evaluated. Paired comparisons demonstrated that the children with DMD had significantly poorer academic achievement scores than their siblings, even though their vocabulary levels and home and educational environments were comparable. Children with DMD also had more behavioral concerns, physical disabilities, and poorer verbal memory spans. Linear regression indicated that behavioral concerns, executive function, and physical disability did not contribute substantially to academic performance, whereas performance on verbal span did. DMD presents with a selective developmental aberration in verbal span that has wide‐ranging consequences on learning skills.