圆锥曲线中的平分面积性质

本文介绍圆锥曲线中平分弓形面积的一个性质.     

跨文化交际中的言语与习俗禁忌

跨文化交际中存在着言语和习俗禁忌问题，言语禁忌中有人名、不吉利词汇、宗教禁忌语问题，习俗禁忌中有社交和饮食方面的禁忌问题。对中西文化在这几个问题的比较分析，可以引起人们在跨文化交际中对文化差异的重视。     

网络交往与大学生的全面发展

通过分析网络交往与一般交往的关系,阐述了网络交往最大的优势是使信息交流变得快速和便捷,更能体现人的社会交往的信息交流特征,同时分析了网络交往对促进大学生的全面发展的作用。     

交情老更亲——杜甫高适关系谈

杜甫、高适同为活跃于盛唐诗坛上的诗人,相互间有数次同游,并在交往中结下了深厚的情谊。其情之深,意之切,感人至深。本文通过对李杜交游中若干问题的考察,以期对两位诗人有一个更好的认识,对二人间的关系再作诠释,并对有关观点提出疑问。     

新时期中外语言接触特点述评

本文对改革开放以来的新时期中外语言接触特点进行了探讨,对它们对汉语的影响进行了分析,为汉语的纯洁与健康发展提供了诸多有益的建议。     

Study on properties of residue-residue contacts in protein

Residue-residue contacts are very important in forming protein structure. In this work, we calculated theaverage probability of residue-residue contacts in 470 globular proteins and analyzed the distribution of contacts in thedifferent interval of residues using Contacts of Structural Units (CSU) and Structural Classification (SCOP) software. Itwas found that the relationship between the average probability -PL and the residue distance L for four structural classes ofproteins could be expressed as lgPL=a b×L, where a and b are coefficients. We also discussed the connection between twoaspects of proteins which have equal array residue number and found that the distribution probability was stable (or un-stable) if the proteins had the same (or different) compact (for example synthase) in the same structural class.     

Why do children not play in nearby nature? Results from a Norwegian survey

Based on a nationwide Norwegian survey among 3160 parents of children aged 6–12 years, this article identifies and discusses barriers for children’s engagement with nearby nature. A set of social factors related to time pressure are evaluated as more significant barriers than environmental factors such as accessibility, safety and landscape quality. Children’s free play in nearby nature does not seem to be an alternative to a target-orientated and time-scheduled everyday life. Instead, parents give themselves, other adults and public institutions more responsibility to stimulate increased nature contact. Despite strong traditions in outdoor life and good accessibility to nearby nature, social and cultural trends seem to influence children’s engagement with nature in the same way in ‘Green Norway’ as it does in many other European countries. Implications of the findings are discussed in terms of policy and promotion according to nature management and adults’ roles.     

浅谈音乐与文学的联系

音乐与文学从表面上看似乎是两种不同的艺术形式，各有不同的艺术领域。音乐是通过声音的组合来表达创作主体的思想，而文学是通过文字的组合以语言为手段来表现目的。但是，语言与音响在表现形态上又有一致性，即他们都是用声音来展示内容，即使文学落实到文字上，也是可以通过声音来朗读的。从另一个角度上说，音乐与文学是不可分割的。文学可以为音乐提供创作素材，而音乐可以利用比语言的表现力更丰富的声音的多种结合方式来表达其思想内容。文学需要音乐的更好的体现，音乐中又有文学因素。所以说音乐与文学是互相制约互相联系的。     

空气与水直接接触热质交换国内外研究进展

对国内外对空气与水直接接触时热质交换的研究现状及进展进行了综述,主要包括热质交换数学模型和热质交换实验研究,并对今后的研究方向作了初步探讨,为对该问题进行深入研究提供了参考.