新型资本市场:中国技术产权交易所研究

目前我国经济发展很快,但高新技术产业发展所需的资金严重不足,即使设立了深圳中小企业板市场,资金问题仍是制约我国创新企业发展的一大障碍.通过技术产权交易所实现资本与科技的结合是缓解我国当前这一资金瓶颈问题的有效途径.     

浅谈"工程材料"教学方法与实践

本文针对《工程材料》的课程特点,介绍了在教学实践中采用的一些方法,如展开丰富的想象;例举新颖有特色的实例;合理运用图表;强调材料新老牌号的对比;关注新材料和新技术的发展动向和趋势;注重教学手段的合理化和多样化等.     

高校大学生人文精神培养的现状与路径探析

针对目前社会发展对高素质人才的要求及高校人文教育现状,本文作者提出培养在校大学生的人文精神应从三方面着手,即课堂教学的渗透、教师人文素养的感染以及校园文化的熏陶。     

Genomic diversity and post-admixture adaptation in the Uyghurs

Population admixture results in genome-wide combinations of genetic variants derived from different ancestral populations of distinct ancestry, thus providing a unique opportunity for understanding the genetic determinants of phenotypic variation in humans. Here, we used whole-genome sequencing of 92 individuals with high coverage (30–60×) to systematically investigate genomic diversity in the Uyghurs living in Xinjiang, China (XJU), an admixed population of both European-like and East-Asian-like ancestry. The XJU population shows greater genetic diversity, especially a higher proportion of rare variants, compared with their ancestral source populations, corresponding to greater phenotypic diversity of XJU. Admixture-induced functional variants in EDAR were associated with the diversity of facial morphology in XJU. Interestingly, the interaction of functional variants between SLC24A5 and OCA2 likely influences the diversity of skin pigmentation. Notably, selection has seemingly been relaxed or canceled in several genes with significantly biased ancestry, such as HERC2–OCA2. Moreover, signatures of post-admixture adaptation in XJU were identified, including genes related to metabolism (e.g. CYP2D6), digestion (e.g. COL11A1), olfactory perception (e.g. ANO2) and immunity (e.g. HLA). Our results demonstrated population admixture as a driving force, locally or globally, in shaping human genetic and phenotypic diversity as well as in adaptive evolution.     

数字金融对于区域创新效率的影响效应研究

运用2011-2018年我国31个省级面板数据和北京大学编制的普惠数字金融指数,实证检验了数字金融对于我国区域创新效率的影响效应.研究发现:数字金融能够显著提升我国区域创新效率;从数字金融维度上来看,数字金融的覆盖广度和使用深度对于区域创新效率的促进作用显著,但是数字金融的数字化程度对于区域创新效率的促进作用不显著;分...     

论残疾青少年父母的压力情况及亲职教育的实施

残疾青少年的父母承担着既普遍又特殊的压力,会对青少年的发展及整个家庭起到重大影响。本文介绍了残疾青少年父母的压力表现,并进一步探讨了有助于减轻父母压力的亲职教育措施。     

培训评估对于提高企业在线培训有效性的研究

文章从保障基于网络环境的企业在线培训教学质量的六要素以及构建培训评估体系等方面进行研究,以期寻找提高企业培训有效性的途径,为推进企业在线培训的发展进行探索和研究。     

信息时代高校资料室管理初探

面对全球信息化的新形势和新要求,基于目前高校资料室管理的现状,文章从图书资料和非书资料两大方面,分析了目前高校资料室管理中所存在的问题,探索了对资料进行全面管理的思路和若干措施。     

Students’ Ideas about How and Why Chemical Reactions Happen: Mapping the conceptual landscape

Research in science education has revealed that many students struggle to understand chemical reactions. Improving teaching and learning about chemical processes demands that we develop a clearer understanding of student reasoning in this area and of how this reasoning evolves with training in the domain. Thus, we have carried out a qualitative study to explore students reasoning about chemical causality and mechanism. Study participants included individuals at different educational levels, from college to graduate school. We identified diverse conceptual modes expressed by students when engaged in the analysis of different types of reactions. Main findings indicate that student reasoning about chemical reactions is influenced by the nature of the process. More advanced students tended to express conceptual modes that were more normative and had more explanatory power, but major conceptual difficulties persisted in their reasoning. The results of our study are relevant to educators interested in conceptual development, learning progressions, and assessment.     

Social factors and adult learners’ motivations in re‐entering higher education

While there is less doubt that adult learners are motivated by different reasons to re‐attend school, it is important to note that, other than psychological factors, social factors are also important in shaping the participation decision. Although researchers have attempted to include social factors in participation models, there is not a conclusive relationship between socioeconomic background and motivation for participation. This study attempts to clarify the linkage between different social factors and adult motivations in re‐entering school to acquire a university degree. By regressing motivations onto three sets of social variables, we found that family role and social position have significant impact in affecting some of the motivations for re‐entering school. These results confirm that adult motivations to learn are embedded within the social lives of adults.