《中图法》(第五版)艺术类类目修订分析及问题探讨

从增删类目、修改类名、增改注释、增加参见类目、增加复分标记五个方面分析了《中图法》(第五版)艺术类类目的修订状况,对修订后的分类法中存在的各种问题进行探讨,并提出了详尽的修改意见。     

OA式科学传播系统的结构与运行机制透视——以“科学公共图书馆”为例

为支持和倡导开放获取（OA）运动而诞生的科学公共图书馆（PLoS）,既是OA科学期刊的出版者,又是传播科学信息的数字图书馆,同时还可被视为一种社会一技术互动系统。文章以STIN模型为工具,透视了PLoS科学传播系统的结构。然后从科学信息的合法传播、科学信息的长期有效传播、资金运作模式、科学信息的质量认证等方面对PLoS科学传播系统的运行机制进行剖释。     

论钱学森的科学学思想

 我国卓越的人民科学家钱学森,是中国科学学的首倡者和主要奠基人,他的科学学思想是其整个科学思想财富的一部分。2011年是钱学森诞辰100周年,深入研究钱学森的科学学思想,对于中国科学学事业发展具有重大意义。钱学森的科学学思想源于他的技术科学理论与实践,正是他把握住技术科学的中介学科地位,演绎成现代科学技术体系,从而阐发了科学学产生的必然性。从率先在中国倡议“科学的科学”研究,到首先发表完整的科学学论文,表明钱学森是中国倡导和创建科学学的第一人。科学学属于社会科学,是科研系统工程的理论基础,在社会科学体系中居于技术科学中介层次,它以全部人类科学知识为研究对象,包含科学技术体系学、科学能力学和政治科学学三个分支学科,坚持马克思主义的指导作用,构成钱学森科学学思想的基本内容、知识体系和鲜明特征。     

在新课标下如何培养学生学习数学的兴趣

中学生的数学学习兴趣对其学习数学十分重要,是学好这门功课的重要前提.在课改新形势下,我们数学教师应当注意运用多种手段和方法,通过多种渠道,培养和激发学生学习兴趣,最大限度地调动学生的学习积极性和主动性.这样才能大面积提高数学教学质量.     

襄麦冬粗提物抗菌活性初步研究

以蒸馏水、甲醇、乙酸乙酯为溶剂,提取襄麦冬活性物质,并分别测定提取物对以下5种病原真菌：立枯丝核菌Rhizoctonia solani,灰葡萄孢菌Botrytis cinerea,齐整小核菌Sclerotium rolfsii,终极腐霉Pythium ultimum,尖镰孢菌黄瓜转化型Fusarium oxysporum f.sp cucumber菌丝生长和孢子萌发的抑制作用.结果表明襄麦冬的三种溶剂提取物对灰葡萄孢菌、终极腐霉、立枯丝核菌的菌丝生长均具有较强的抑制作用,而上述相同浓度的提取物对齐整小核菌、尖镰孢菌黄瓜转化型的生长未表现出明显的抑制效果.同时,三种溶剂提取物对立枯丝核菌、灰葡萄孢菌、齐整小核菌、终极腐霉、尖镰孢菌黄瓜转化型的孢子萌发均表现出一定的抑制作用.其中,襄麦冬乙酸乙酯提取物较蒸馏水和甲醇提取物对病原真菌的生长和孢子萌发的抑制效果明显.乙酸乙酯提取物相对于蒸馏水、甲醇提取物有较好的抑菌效果.襄麦冬提取物对灰葡萄孢菌、终极腐霉、立枯丝核菌的菌丝生长和立枯丝核菌、灰葡萄孢菌、齐整小核菌、终极腐霉、尖镰孢菌黄瓜转化型的孢子萌发有良好的抑制作用.     

Preschool teachers and classroom aides: Same context,similar perceptions of children's behaviors?

This study explored the correspondence and differences between school staff perceptions of preschool children's social skills and behavior problems. One hundred preschoolers were assessed by 14 pairs of teachers and classroom aides with the Preschool and Kindergarten Behavior Scales – 2^nd Edition (PKBS‐2 Portuguese version). Indexes of agreement and disagreement were calculated. Risk levels and item analyses of PKBS‐2 scores according to both informants' ratings were compared. A higher level of agreement was obtained for social skills scores than for behavior problems (mean correlation of .62). No statistically significant differences between informants were obtained for the risk levels, and item analyses revealed a similar pattern of behaviors that were most and least rated by both informants. Results indicate that the classroom aides' perspective on preschool assessment represents a reliable input, which justifies that they network with teachers in addressing preschoolers' social‐emotional and behavioral challenges.     

The relationship between teachers’ emotional intelligence and classroom discipline management

One of the fundamental problems of educational systems in many countries is related to classroom discipline. This reflects one of the worst problems faced by teachers. Classroom discipline management strategies play an effective role in creating positive teacher‐student relationships. One of the factors that influence behavior management in a classroom is emotional intelligence. Therefore, this study analyzing how teachers emotional intelligence influences the management of discipline in a classroom and the relationship between gender, academic formation, and service time of teachers with their emotional intelligence. Its sample comprises 559 basic and secondary school teachers. An Emotional Competence Questionnaire, a Scale of Teacher Efficacy in Classroom Management, and a personal and professional data inquiry have been used as instruments. Results show that teachers who have more capacity to deal with emotion demonstrate a greater management of discipline in the classroom. Most of the relationships in the model are statistically significant.     

Do universal social and emotional learning programs for secondary school students enhance the competencies they address? A systematic review

While universal school‐based social and emotional learning (SEL) programs claim to target various SEL competencies, earlier reviews have not provided a clear overview of the competencies in question. We therefore wished to identify the competencies targeted in SEL programs for secondary school students. We also aimed to examine the effects of these programs on SEL competencies and psychosocial health. The specific SEL competencies directly addressed in the programs' primary learning targets were identified based on the Collaborative for Academic, Social and Emotional Learning (CASEL) framework for SEL. Five bibliographic databases (PubMed, PsychINFO, Education Resources Information Center (ERIC), Applied Science Premier (ASP), and Web of Science) were searched for relevant research papers published between 2014 and 2018. We included 40 studies that investigated 32 programs focusing on two or more SEL competencies. While most programs targeted four or five of the SEL competencies, many of the included studies did not measure the programs' effects on all the competencies targeted. Our results showed that the SEL programs had substantial effects on the SEL competencies they addressed and on psychosocial health. Although the programs focused predominantly on self‐management skills and relationship skills, the largest summary effects were found for self‐awareness and social awareness.     

从胡适散文识“学术小品”

胡适的“学术小品”中始终有一个鲜亮、活脱的“自我”。他以一贯的举重若轻的风度、“大众语”式的“言说方式”和不摆谱、不扯闲、不端任何架子的平和及一丝甜甜的幽默 ,成就了他独有风采的学术小品世界     

基于灰色神经网络组合模型的电力消费量预测——以河北省为例

在分析灰色预测模型GM(1,1)以及BP神经网络预测模型2种单一模型在电力消费量预测方面不足的基础上,提出灰色神经网络组合预测模型。以河北省电力消费量为基础,分别用3种模型进行预测,并加以比较分析。结果表明,灰色神经网络组合模型提高了关于河北省中长期电力消费量的预测精度,对河北省未来电力系统及能源需求规划具有一定参考价值。