排序方式： 共有13条查询结果，搜索用时 296 毫秒
1.
Asal Aghaz Amin Hashemi Maryam S. Sharifi Atashgah 《Journal of Marketing for HIGHER EDUCATION》2015,25(1):104-126
Despite several studies having been conducted to examine organizational image from a business perspective, there has not been adequate research in the area of perceived image in nonprofit organizations such as universities. Thus, the purpose of this study was to examine the factors contributing to university image, from the postgraduate students’ point of view. In addition, the impact of the students’ perceived university image on their organizational trust was examined. The population of this study consisted of postgraduate students in 10 of the top Iranian universities. Questionnaires were used to collect the required data. The findings indicated the difference between current practices and ideal values of the factors contributing to the university image. Based on our findings, the factors contributing to university image range from internal and international reputation, university members, and academic planning, to university environment. Furthermore, we found that university image has a significant impact on students’ trust in their university. 相似文献
2.
The need for cell and particle sorting in human health care and biotechnology applications is undeniable. Inertial microfluidics has proven to be an effective cell and particle sorting technology in many of these applications. Still, only a limited understanding of the underlying physics of particle migration is currently available due to the complex inertial and impact forces arising from particle–particle and particle–wall interactions. Thus, even though it would likely enable significant advances in the field, very few studies have tried to simulate particle-laden flows in inertial microfluidic devices. To address this, this study proposes new codes (solved in OpenFOAM software) that capture all the salient inertial forces, including the four-way coupling between the conveying fluid and the suspended particles traveling a spiral microchannel. Additionally, these simulations are relatively (computationally) inexpensive since the arbitrary Lagrangian–Eulerian formulation allows the fluid elements to be much larger than the particles. In this study, simulations were conducted for two different spiral microchannel cross sections (e.g., rectangular and trapezoidal) for comparison against previously published experimental results. The results indicate good agreement with experiments in terms of (monodisperse) particle focusing positions, and the codes can readily be extended to simulate two different particle types. This new numerical approach is significant because it opens the door to rapid geometric and flow rate optimization in order to improve the efficiency and purity of cell and particle sorting in biotechnology applications. 相似文献
3.
Sepehr Ghazinoory Zahra Hashemi 《The Journal of High Technology Management Research》2021,32(1):100394
Tax incentives and direct funding are two different public support instruments used to facilitate the formation and growth of firms. Limited empirical evidence has compared the effectiveness of two different policies and their interactions for firms. In this paper, we investigate the main and interaction effects of these interventions on high-tech firms. Since large and small firms innovate in different ways, we compare the use of both incentives by Iranian high-tech SMEs and large firms through a factorial design technique. This paper presents significant differences both across instruments and across firm size. Results show that for SMEs, tax exemption has a significant effect on R&D investment, and funding has a significant effect on R&D investment, R&D employees, and new products. However, there aren't any interaction effects between instruments. For large firms, funding is an effective instrument for R&D investment. Also, there is an interaction effect between tax incentives and direct funding on new products. These findings indicate that funding is a more effective instrument than tax exemption, especially for SMEs, but suggest some changes in supporting policies of high-tech firms in Iran. 相似文献
4.
Education and Information Technologies - Score interchangeability of Computerized Fixed-Length Linear Testing (henceforth CFLT) and Paper-and-Pencil-Based Testing (henceforth PPBT) has become a... 相似文献
5.
Constantino JN Hashemi N Solis E Alon T Haley S McClure S Nordlicht N Constantino MA Elmen J Carlson VK 《Child abuse & neglect》2001,25(12):1571-1581
OBJECTIVE: Home visitation has been shown to be effective in reducing rates of child maltreatment and in enhancing psychosocial outcomes in children and their parents. Even when available, however, it is underutilized by parents in some urban settings. We tested a supplemental 10-session group intervention for its ability to increase active participation in home visitation, enhance the quality of caregiving behavior of parents, and improve social developmental outcome in children. METHOD: A randomized controlled design was utilized, involving two separate cohorts of parents of 3- to 18-month old infants, totaling 148 parent-child dyads. The intervention focused on practical experience in promoting parent-infant attachment relationships. RESULTS: At 6 months follow-up, there was a substantial increase in the proportion of intervention group parents participating in home visitation, compared to parents in the control group (Fisher's exact p = .008). Parents in the intervention group exhibited a trend for improvement in their capacity to appropriately interpret infants' emotional cues (p = .08), independent of the effects of home visitation itself. Attrition in both the treatment and control groups was inversely associated with income and level of education. CONCLUSIONS: Group meetings may constitute an effective means of engaging stressed urban families in home visitation. 相似文献
6.
Jae-Woo Choi Seyyed Mohammad Hosseini Hashemi David Erickson Demetri Psaltis 《Biomicrofluidics》2014,8(4)
We present a method to perform sample concentration within a lab-on-a-chip using a microfluidic structure which controls the liquid-gas interface through a micropillar array fabricated in polydimethylsiloxane between microfluidic channels. The microstructure confines the liquid flow and a thermal gradient is used to drive evaporation at the liquid-gas-interface. The evaporation occurs in-plane to the microfluidic device, allowing for precise control of the ambient environment. This method is demonstrated with a sample containing 1 μm, 100 nm fluorescent beads and SYTO-9 labelled Escherichia coli bacteria. Over 100 s, the fluorescent beads and bacteria are concentrated by a factor of 10. 相似文献
7.
Anthony C.K. Leung Banafsheh Hashemi Pour Dan Reynolds 《Assessment & Evaluation in Higher Education》2017,42(2):169-181
A new team learning assessment process was designed and tested in a first-year university physics laboratory class. The assessment process was designed to provide a strong incentive for students to cooperate and feel responsible for each other’s learning and fostering a sense of collaboration rather than competition. Specifically, the new assessment process involves randomly dividing students into teams of four to work on a physics experiment and, at the end of the laboratory session, randomly selecting only one team member to carry out a post-laboratory session performance task. The results indicate that learning outcomes were not compromised in the new assessment process and that peer instruction was employed to a greater extent compared to our standard process. Student responses from a post-assessment survey revealed that 76% of students considered our new assessment process to be fair, whereas 57% of students felt our standard process was fair. The new assessment process used in this study led to a 75% reduction in grading duties – an advantage for large class management. 相似文献
8.
Knowledge acquisition and bilingual terminology extraction from multilingual corpora are challenging tasks for cross-language information retrieval. In this study, we propose a novel method for mining high quality translation knowledge from our constructed Persian–English comparable corpus, University of Tehran Persian–English Comparable Corpus (UTPECC). We extract translation knowledge based on Term Association Network (TAN) constructed from term co-occurrences in same language as well as term associations in different languages. We further propose a post-processing step to do term translation validity check by detecting the mistranslated terms as outliers. Evaluation results on two different data sets show that translating queries using UTPECC and using the proposed methods significantly outperform simple dictionary-based methods. Moreover, the experimental results show that our methods are especially effective in translating Out-Of-Vocabulary terms and also expanding query words based on their associated terms. 相似文献
9.
10.
Ali Pour Moghaddas 《Higher Education》1975,4(3):369-375
Recent developments in higher education in Iran are examined against a background of social reform and industrialisation. 相似文献