学术期刊盈利指数与合理版面费的确定     

王凌峰 《哈尔滨学院学报》2013,34(3):142-144

近年来国内相当部分学术期刊滥收版面费现象引起各方关注,引出如何区分合理的版面费与盈利为目标的不合理版面费之问题,文章计算了国内哲学社会科学学术期刊的合理版面费数量,并进一步提出学术期刊盈利指数,为学术界、新闻出版总署、教育部等界定牟利学术期刊提供一个简便有效的客观方法。  相似文献   

LibGuides and Web-Based Library Guides in Comparison: Is There a Pedagogical Advantage?     

《Journal of Web Librarianship》2013,7(2):147-171

This study investigates whether the platform used to deliver a tutorial matters in online information literacy instruction and assesses the overall quality of an information literacy tutorial assignment given to an undergraduate survey class. The study asks whether there is any pedagogical advantage between information literacy tutorials created in the LibGuides library guide creation software and tutorials created as Web pages. This research question is relevant to current studies of online information literacy tutorials, particularly given the increasingly dominant but under-researched position of LibGuides in the academic library world for delivering guides and tutorials. Two separate groups of students completed LibGuides and Web page versions of the same information literacy tutorial assignment in a university undergraduate communication course. Survey results of these 89 students indicated that both the LibGuides and Web page platforms deliver online instruction content effectively and achieve learning objectives almost equally well. Results also indicated content areas within the assignment that could be strengthened.  相似文献   

A Use of Space: The Unintended Messages of Academic Library Web Sites     

《Journal of Web Librarianship》2013,7(3):220-248

Academic library home pages are not only access points to the resources and services of a library, they are virtual representations of the library itself. The content placed on the page, where it is placed, and the amount of space allotted are all choices that send a message about the character of the library, the resources a user should start with, and the library's attitude toward its users. This study explores the messages being sent by the content selection and design of the home pages of 49 of the 50 largest academic libraries in the United States. By looking at the area allocated to different content types and the number and location of different content types, the researchers discovered that design elements and promotion/public relations receive a large amount of page space. The researchers also identified the prominently positioned multi-search box as the apparent de facto standard access point to library resources. Many sites are clearly designed to direct users to specific, presumably important resources. Other sites are more obscure in their site structure and design, increasing the options and visual clutter for users without providing much guidance.  相似文献   

Academic Library Websites     

《Journal of Web Librarianship》2013,7(2):57-69

Abstract

This article considers two components identified as essential to effective academic library Websites-satisfaction of user needs and adherence to university Website guidelines-and how they sometimes contradict one another. A literature review is provided, followed by results of a survey the author created and distributed that measures a librarian's perception of his/her school's Web-administration scenario. The author concludes with suggestions for balancing university Web guidelines and user satisfaction.  相似文献   

Effective Internet Research     

Janine Lim 《Clearing house (Menasha, Wis.)》2013,86(1):35-36

For many reasons, students with disabilities are not as thoroughly represented in science careers as are their nondisabled peers. In this case study, the authors explore the effects an informal education program focused on environmental science and delivered to college-bound students with disabilities had on comfort level with science and interest in science careers. Results indicate that the informal nature of the program was well-received and increased individuals' confidence in their science ability. The authors present suggestions for translating this experience into a traditional classroom setting.  相似文献   

城市主干道交通拥挤收费额度的经济学计算     

黎明 《科技创业月刊》2009,(7):89-90

交通拥挤收费额度应是各城市交通拥挤社会时间效益的损失值和用户开车上路的额外消费收益值之和.从经济学原理求得社会经济的时间效益和额外消费收益计算公式,并据此公式及长沙市的社会经济水平和交通状况的具体计算可得出:在14:00-22:00对市中心区的十一条主干道进入市中心方向收费额度为6元/次为宜.  相似文献   

基于网页内容评价和Web图的启发式垂直搜索策略的设计     

李广丽 《情报理论与实践》2009,32(9)

针对传统的基于Web图的垂直搜索策略Authorities and Hubs,提出了一种融合了网页内容评价和Web图的启发式垂直搜索策略,此外,引入向量空间模型进行针对网页内容的主题相关度判断,进一步提高主题网页下载的准确率.实验表明,文中算法有效地提高了主题网页的聚合程度,且随着网页下载数量的增加,垂直搜索引擎的准确率逐渐递增,并在下载网页达到一定数量后,准确率趋于稳定,算法具有较好的鲁棒性,可以应用到相关垂直搜索引擎系统中.  相似文献   

垃圾收费制度在我国垃圾处置中的适用特征分析     

谭灵芝  鲁明中 《软科学》2008,22(1):67-70

从垃圾收费制度的内涵和作用出发,分析垃圾收费标准的评判方式,提出了确定垃圾处理费的计算办法。从我国的现状出发,明确我国现阶段应该完善定额收费制度,进一步促进我国居民环境意识的改变和垃圾处置产业化发展。  相似文献   

桐庐县分水江流域面源污染评价及防治对策   总被引：4，自引：0，他引：4  

王亦宁  毛明海 《科技通报》2008,24(5)

介绍了桐庐县分水江流域农业面源污染基本状况.从面源污染对水环境影响的角度人手,在考察桐庐县分水江流域土地类型的基础上,通过SCS径流曲线方程计算各种土地类型的产流能力和产流情况,进而计算各土地类型所产生的面源污染物量和污染负荷,分析了各行政区的面源污染状况.并与调查资料作了实证对比分析,结果较为吻合.最后以污染负荷为依据进行面源污染的整体评价,得出了各行政区的面源污染等级.提出若干污染治理对策.  相似文献   

物理学中的守恒定律及其地位     

杨昌权 《黄冈师范学院学报》2000,20(3):64-65

从时间的均匀性可推得机械能守恒定律,从空间的均匀性和空间的各向同性可分别推出动量守恒定律和角动量守恒定律。如果没有时间对称性、就根本谈不上物理学。因此,守恒定律是物理学的基石,它与基本定 律和各种物理现象一层层地构成了整个物理大厦。  相似文献