学术搜索引擎的特点及发展趋势——基于Google Scholar、百度国学、CNKI、Scirus的比较研究

百度国学和CNKI是国内两个重要的中文学术搜索引擎,Google Scholar和Scirus是国际公认的专业学术搜索引擎,介绍了它们各自的特点及其功能,分别从数据库、检索功能、检索结果与用户界面3个方面来比较分析了它们各自的异同点,并对学术搜索引擎的发展趋势做了展望。     

论忠孝两全的辩证关系

好儿女志在四方。大凡忠臣义士,必然是志在千里,欲为国为民谋一番事业,名传千古,不可能一辈子呆在家里承欢父母膝下的。然而,很少有人说他们不孝的,因为他们忠于祖国,为了祖国的安定和富强贡献自己的一切,所以才有“小家”的安康,才有他们父母平安幸福的生活。从某种意义上说,他们尽忠的同时也尽了“孝”。     

对本校非英语专业口语现状的调查分析及教学思考

本文通过问卷调查法对本校大一、大二非英语专业198名正在学习大学英语的学生就口语水平,学习动机,学生对于当前英语课堂口语教学的态度以及英语口语学习中的困难随机进行了初步调查,并对结果进行分析思考并提出了相应的建议。     

网络检索工具——搜索引擎发展趋势之探讨

本文介绍了获取网上资源的途径是充分的利用搜索引擎，在此列举了三种搜索引擎，分析了它们在检索效果上的优点和所存在的问题。在利用搜索引擎时应根据它们的特点，结合检索的需求，有效地使用它们。并对未来的搜索引擎提出了展望。     

黑龙江省多宝山经济开发区矿产资源开发与环境保护

本文简介了多宝山经济开发区自然环境特征，论述了该区的矿产资源的种类、质量（品位）、分布特征及其开发利用现状。对矿产资源开发出现的环境地质问题及其危害进行了分析论述，并对保护环境提出了对策建议。     

提高大学生就业竞争力的几点思考

本科毕业生面临的就业压力日趋增大,要提升本科毕业生的就业竞争力需从大学生入学开始提高学生理论文化水平之外,还着重培养大学生的表达能力、交际能力、创新能力、协作能力、分析解决问题的能力,提高学生获取知识、更新知识等能力,夯实学生自身水平。     

A Review on the Role of Nutraceuticals as Simple as Se2+ to Complex Organic Molecules Such as Glycyrrhizin That Prevent as Well as Cure Diseases

Nutraceuticals are nutritional medicines which are present in edible food items. Most of them are antioxidants with various other biological properties viz, anti inflammatory, anti atherogenic, anticancer, anti viral, anti aging properties etc. They are as simple as minerals like Se²⁺ to complex organic molecules such as glycyrrhizin (Ca²⁺, K⁺ salts of glycyrrhizic acid). They can prevent as well as cure various diseases. Most of the medical people are not aware of the importance of the nutraceuticals as such matters are not part of their text books. Many still think that vitamins are the major nutritional medicines. Actually other dietary principles like terpenes, carotenes, phytosterols, polyphenols, flavanoids, di and poly sulphides, their sulfoxides and their precursor amino acids are necessary to scavenge free radicals in the body which are reactive oxygen species to protect and maintain the vitamin levels in the body. They down regulate the activities of those enzymes which are increased in diseases and they increase those that remove oxidants and detoxify carcinogens. They are immune boosters too. Recently glucosinolates, non toxic alkaloids, certain proteins and even fiber are included in the list of nutraceuticals.     

浅谈科学实验法在幼儿教学中的运用

由梳头引起摩擦生电,为了让孩子更清楚直观地理解这一物理现象,我把实验引入幼儿教学中,结果孩子们很感兴趣。因此,在以后的教学中,我立足教学目标,从幼儿兴趣点入手,家园携手,把小实验融入教学中,在实验中,既培养了孩子们的动手能力,提高了观察分析能力,又培养了他们的科学兴趣。     

开发衡阳茶皂素资源前途广阔

本文详细介绍了茶皂素资源分布、提取方法及特点、用途、市场需求预测、经济效益和社会效益。     

Why We Need Better Ethics for Emerging Technologies

Technological revolutions are dissected into three stages: the introduction stage, the permeation stage, and the power stage. The information revolution is a primary example of this tripartite model. A hypothesis about ethics is proposed, namely, ethical problems increase as technological revolutions progress toward and into the power stage. Genetic technology, nanotechnology, and neurotechnology are good candidates for impending technological revolutions. Two reasons favoring their candidacy as revolutionary are their high degree of malleability and their convergence. Assuming the emerging technologies develop into mutually enabling revolutionary technologies, we will need better ethical responses to cope with them. Some suggestions are offered about how our approach to ethics might be improved.     

非线性计算不稳定问题的进一步研究

讨论了有关非线性计算不稳定的若干问题,其主要内容有(1)考察了有代表性的三类发展方程,指出其对应的差分格式是否出现非线性计算不稳定,与原微分方程解的性质密切相关;(2)进一步讨论了带周期边条件的守恒型差分格式的非线性计算稳定性问题,总结了克服非线性不稳定的有效措施;(3)以非线性平流方程为例,着重分析了带非周期边条件的非守恒差分格式的非线性计算稳定性问题,给出了判别其计算稳定性的"综合分析判别法".     

情报学领域网络引文衰减规律研究——以三种核心期刊为例

随着互联网的普及,越来越多的学术论文将网络信息作为参考文献源,但这些网络引文相对于传统引文更加容易衰减。选取中文图书情报领域的三种核心期刊,对其1999-2008十年中发表的学术论文的网络引文进行分类处理,统计这些URL的衰减原因,计算中文图书情报领域核心期刊网络引文的半衰期,分析年际数量变化、域名和深度与其衰减规律的联系。并从URL特征、网络引文格式、网络信息来源等几个方面对缓解网络引文衰减提出6点建议。     

企业实施精益6西格玛探究

精益方法和6西格玛方法被认为是当前企业提高效益的最具竞争力的两种生产管理方法,更多研究注重从各自的角度对二者进行深度的研究,而对精益方法和6西格玛方法协同作用的研究却很少。在分析精益方法和6西格玛方法的内涵基础上,探讨二者的关系及协同作用,建立精益6西格玛方法,为企业降低成本,提高效率,减少浪费提供最佳管理方法。     

甘肃省民营企业家族制经营及与现代企业法治的契合

甘肃民营企业处于快速发展期,大多实行家族制经营,认为符合甘肃民营企业发展现状和经营机制需求,但随着企业规模的逐渐扩大,需要不断进行经营管理上的优化。改进途径是实行股权社会化、管理专业化和治理结构上的规范化,以期与现代企业制度的宗旨和内涵相契合,弥补家族制管理模式的缺陷,渐进性和选择性的调整家族制企业治理结构。     

信息与知识的关系辨析

本文梳理国内部分学者对信息与知识关系的认识,在分辨信息与知识基本概念内涵的基础上,把信息与知识的关系总结为:效用并列、内容转化、范围包含、结构分立和属性替代。     

英语语音习得实证研究

通过对我校非英语专业本科学生英语语音习得中所遇到的困难进行分析,在错误分析理论的指导下,诊断学生的发音问题及成因。通过语料比较,分析得出实验参与者英语发音的整体习得情况,通过其中的母语迁移现象来解释学生元音音段习得的问题。并把语音教学引入大学英语课堂教学。     

Little landscapes: dioramas in museum displays

The Science Museum in London has over a hundred dioramas in its holdings, prepared at various times since 1931 for a range of exhibitions and displays. These have become simultaneously more interesting as artefacts in their own right, and more threatened as display fashion changes and their original purpose is less relevant to today's audiences. Nonetheless, they are immensely powerful as devices for communication to audiences and their own histories add depth to our understanding of how museums work.     

A Rethinking on the Benefits and Drawbacks of Common Antioxidants and a Proposal to Look for the Antioxidants in Allium Products as Ideal Agents: A Review

This review article on the beneficial uses of Allium antioxidants tries to give some answers to the recent doubts raised by Singh et al. (Ind J Clin Biochem 25(3):225–243, 2010) against the claim of some researchers that Antioxidants (AOs) are miraculous molecules. Many people still believe that vitamins like A, C and E are the only true AOs that play important role in the corrections of metabolic derangements in life style diseases and hence all their faults are attributed to the failures of AOs as a class. This is quite unfair as there are many other natural AOs that do equal or even better AO action than the vitamins. Such is the case with the Allium S-alkyl sulfoxide aminoacids and their breakdown products viz, the various poly sulfides and their oxides e.g. allicin and ajoene type compounds which trap electrons mainly. It is true that antioxidant vitamins and β-carotene a precursor of Vitamin A bring about problems as prooxidant or as agents that block some metabolic pathways and gene expression. Again the argument that AOs cannot improve the level of antioxidant enzymes like SOD, catalase and glutathione Px is also not universal. Actually allium AOs can even spare the use of antioxidant vitamins in the body and enhance the action of antioxidant enzymes and supply of ATP and other nutrients to the tissues as the former are good vasodialators and promoters of membrane permeability. The use of AOs should be selective and moderate. Allium AOs satisfy the role of ideal AOs based on many of their invivo and invitro actions reported by the author and others. Their metabolits can regenerate them and recycle them for a sufficient time in the body. They have non antioxidant effects also such as antiplatelet, fibrinolytic, antiinflammatory, immunomodulatory, antiageing actions etc. Plant derived AOs may be more beneficial and better tolerated in their partially purified forms rather than in their absolutely purified forms as the accompanying principles have some protective and regulatory effects in general. This and other aspects of allium AOs are discussed in the paper.     

论艺术院校辅导员心理健康及自我调适

高校辅导员是大学生日常思想政治教育和管理工作的组织者、实施者和指导者,是开展大学生思想政治教育的骨干力量,是联系学校和学生的纽带,辅导员群体的个人素质直接关系到大学生的全面发展与健康成长。近来,由于高校辅导员特殊的工作性质和职业角色,工作职责范围的不断扩大,使得高校辅导员容易产生心理健康问题。本文以艺术院校的学生为例,通过分析艺术类高校辅导员心理健康对大学生心理健康教育的重要性,进而端正,掌握如何有效地对自我心理健康进行维护和调适。     

职校图书馆如何组织学生参与管理

职校图书馆工作人员普遍不足,使用学生馆员参与图书管理能解决人员不足的问题,也能提高学生素质。合理组织学生,能加强图书馆藏书资源建设,能全面提升图书馆服务。同时学生参与管理也存在种种缺陷。