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31.
探讨了聚合物材料的缺口效应,并以聚丙烯腈-丁二烯-苯乙烯(ABS)材料为例,进行了拉伸速率跨越3个数量级的拉伸实验研究,考查并分析了应变率与几何参数对材料切口强度的综合影响. 相似文献
32.
Undocumented students, many of Hispanic origin, face among the strictest cost barriers to higher education in the United States. Lack of legal status excludes them from most state and all federal financial aid programs. Furthermore, most states require them to pay out-of-state tuition rates at publicly supported institutions. In a new direction, boards of trustees at universities in several states have bypassed the legislative process to lower the cost barrier. This policy article evaluates one such university-level innovation. 相似文献
33.
A tracer study of Lebanese upper secondary school students 总被引：1，自引：0，他引：1
Barend Vlaardingerbroek Kamel Dallal George Rizkallah Jihan Rabah 《International Journal of Educational Development》2007
This paper presents data arising from a tracer study of 90 terminating Beirut upper secondary school students. Nearly all the students intended to transit to university, about half of them to science and technology programmes, and subsequently did so. Median anticipated earnings upon graduation were realistic, but a lack of information or guidance about higher education and career options was noted by a considerable proportion. The results of the study are discussed with reference to the as yet poorly elucidated dynamics of schooling with regard to attrition and transition to higher education and employment in Lebanon. 相似文献
34.
A reexamination of the effect of big-time football and basketball success on graduation rates and alumni giving rates 总被引：1，自引：0，他引：1
To determine the impact on the academic mission, the models in this study test whether there is statistical evidence that student graduation rates or alumni giving rates are influenced by pigskin or hoop success for major universities after adjustment for key academic variables. Using a sample of big-time sports universities and models comparable to other research, the evidence presented in this article indicates that having a highly successful football team has a positive impact on both the overall graduation rate and the alumni giving rate. In contrast, a successful basketball team has no significant effect on either of these key measures of academic success. 相似文献
35.
利率变动通过影响虚拟经济改变了主流经济学中利率变动的收入效应与替代效应,在虚拟经济下:(1)利率上升通过虚拟经济的财富效应,在短期中使储蓄增加,在长期中使储蓄减少;(2)利率上升通过虚拟经济的替代效应,在短期中使储蓄减少,在长期中使储蓄增加。通过中国2000-2007年数据实证表明:利率变动对居民储蓄都产生负向作用;利率变动通过股市对居民储蓄产生的替代效应大于财富效应;利率变动通过影响投资从而作用于居民收入、居民储蓄的机制不存在。 相似文献
36.
《昭通师范高等专科学校学报》传播趋势分析 总被引：1，自引：1，他引：0
通过我校学报在中国知网个刊影响力统计分析数据库中的下载量、浏览量来看,我校学报的传播速度正快速提升,影响力正在逐步扩大。但海外影响力却仅是起步,各学科专题发文水平差距明显等问题仍然存在。学报应努力做到巩固优势栏目,提高弱势栏目,开拓新兴栏目,全面提高我学学报的学术质量,进一步扩大学校及学报的知名度。 相似文献
37.
Jacques du Toit Andre Kraak Judy Favish Lizelle Fletcher 《Assessment & Evaluation in Higher Education》2014,39(7):853-864
Current literature proposes several strategies for improving response rates to student evaluation surveys. Graduate destination surveys pose the difficulty of tracing graduates years later when their contact details may have changed. This article discusses the methodology of one such a survey to maximise response rates. Compiling a sample frame with reliable contact details was most important, but may require using additional sources of information other than university records. In hindsight, graduates should have been contacted prior to the survey to introduce it and stress its importance, while email and postal reminders appeared to have a limited effect on non-respondents. Due to varying response rates between participating universities, online responses were augmented with a call centre administering the survey telephonically to non-respondents. Although overall differences between online and telephonic responses appeared to be small, certain question items may need to be treated with caution when conducting telephonic surveys. 相似文献
38.
以中国社会科学引文索引(CSSCI)2008年至2012年信息生态的被引文献为研究对象,从被引频次角度进行统计和分析,得出被引年代、语种、类型分布规律及期刊、作者、机构、论文的学术竞争力排名及主题热点,以期对后续研究有所帮助。 相似文献
39.
Response rates, response time, and costs of mail and electronic surveys were compared. The survey sample consisted of college faculty in the southeastern United States. Mail surveys yielded a higher response rate and a lower rate of unde-liverable surveys. However, receipt of responses was significantly quicker for those delivered electronically, with over 80% of initial responses arriving before receipt of the 1st returned mail survey. The costs associated with distribution of surveys and preparation of data for analysis were much lower with the electronically delivered surveys. 相似文献
40.