جستجوی مقالات مرتبط با کلیدواژه "ساینس دایرکت" در نشریات گروه "کتابداری و مدیریت اطلاعات"

This research is trying to explain the strength and weakness of Science Direct and Emerald charging database and DOAJ free database.
It is a quantitative study and the research samples are all available database in Tehran universities. Among these databases, DOAJ, Emerald and Science Direct are selected because of their frequency of usage and similarities of searching tools and organization. Assessment of these databases are done according to two research made checklist that examines their organizations and searching tools. For analyze finding of this research with descriptive method such as frequency and mean and inferential study such as t- test and u Mann Whitney.
Findings: Research findings show that mean frequency of organization in Science Direct, Emerald and Doaj are 73%, 56%, 41% respectively. Mean frequency of searching tools are 68%, 57% and 38% respectively.
Analysis of the data shows that charging data bases such as Science Direct and Emerald are performing better than free data bases in organization and searching.

This research studies the extent to which graduate students at Shiraz University use the mentioned databases and the problems that they have in this regard. Methodology/Approach: The research population consists of higher education students of Shiraz University among which a sample of 360 students were selected through random sampling. The data collection tool was a questionnaire. Its validity and reliability (α=0. 902) have been verified. The higher education students of Shiraz University frequently use online full text databases. Students mostly use ScienceDirect and Elsevier databases. Students mostly use online databases for doing their thesis and coursework and for writing and translating books and papers. Since the most important reason for not using the mentioned databases by students is that they are not familiar with them، ongoing educational programs must be planned for this matter. On the other hand، information and communication infrastructures must be developed for providing services related to the databases outside the university.

The present research investigates the perspective of higher education students in Shiraz University, as one of the greatest educational and research centers of Iran, regarding fulltext databases such as Ebsco, Elsevier, ScienceDirect, and ProQuest. Results of the current study reveal that, students’ perspective towards accessing information through the two databases ScienceDirect and Elsevier is positive, while they have negative view regarding the two databases Ebsco and ProQuest. Furthermore, the achieved results indicate that the possibility of information storage on computers, access to most updated articles and journals, and the possibility of end-user searching have been the most significant satisfaction factors regarding the databases. Additionally, the problems of no possibility to access the databases at work place or at place of students’ residence, and no possibility of connection to these databases due to traffic of connection lines and high number of visitors, are among the most important problems the students encounter when using the databases.