Improvement of rectification effects in diffuser/nozzle structures with viscoelastic fluids     

Nam-Trung Nguyen  Yee-Cheong Lam  Soon-Seng Ho    Cassandra Lee-Ngo Low 《Biomicrofluidics》2008,2(3)

This paper reports the improvement of rectification effects in diffuser∕nozzle structures with viscoelastic fluids. Since rectification in a diffuser∕nozzle structure with Newtonian fluids is caused by inertial effects, micropumps based on this concept require a relatively high Reynolds numbers and high pumping frequencies. In applications with relatively low Reynolds numbers, anisotropic behavior can be achieved with viscoelastic effects. In our investigations, a solution of dilute polyethylene oxide was used as the viscoelastic fluid. A microfluidic device was fabricated in silicon using deep reactive ion etching. The microfluidic device consists of access ports for pressure measurement, and a series of ten diffuser∕nozzle structures. Measurements were carried out for diffuser∕nozzle structures with opening angles ranging from 15° to 60°. Flow visualization, pressure drop and diodicity of de-ionized water and the viscoelastic fluid were compared and discussed. The improvement of diodicity promises a simple pumping concept at low Reynolds numbers for lab-on-a-chip applications.  相似文献   

Basic Serials Cataloging Workshop     

Les Hawkins  Hien Nguyen  Stephen Kharfen 《期刊图书馆员》2015,68(1-4):5-16

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Ly Tran,Simon Marginson,Hoang Do,Quyen Do,Truc Le,Nhai Nguyen,Thao Vu,Thach Pham and Huong Nguyen: Higher education in Vietnam: flexibility,mobility and practicality in the global knowledge economy     

Huong Thu Nguyen 《Higher Education》2015,70(5):899-901

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Development and use of an instrument to measure students’ perceptions of a business statistics learning environment in higher education     

Thuyuyen H. Nguyen  Michael Newby  Panayiotis G. Skordi 《Learning Environments Research》2015,18(3):409-424

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Linear and orthogonal models of acculturation and its relations to cultural variables: An examination of the Suinn-Lew Asian Self-Identity Acculturation Scale (SL-ASIA)     

Tam K. Dao  Andra L. TetenQuang Nguyen 《Int J Intercult Relat》2011,35(1):61-68

The Suinn-Lew Asian Self-Identity Acculturation Scale (SL-ASIA) is the most widely used measure of acculturation for Asians. The purpose of the current study was twofold: First, the study explored the consistency of the SL-ASIA in characterizing Asian American men's level of acculturation - Asian-Identified, Western-Identified, Bicultural - using the items of the scale in orthogonal versus linear approaches. Second, the study examined the association between the two scoring methods and characteristics indicative of Asian culture—family allocentrism, loss of face, and affect intensity. An orthogonal approach suggests individuals may identify both with Asian and Western cultures, whereas a linear approach indicates an individual identifies with one culture at the expense of the other (e.g., high Asian, low Western identified). We examined the classification rates of these two methods using a large sample of Asian-American collegiate men (n = 521) and then within each ethnic subgroup of Asian men (e.g., Chinese, Japanese, Korean). Results suggested the two methods of characterizing men consistently diverged. Across the Asian subgroups, the overall agreement rates using linear and orthogonal methods were approximately at chance. Furthermore, significant correlations were observed among acculturation scoring methods and variables indicative of social integrity and family attitude. The implications for these findings and potential future directions for the study of acculturation are discussed.  相似文献   

Love acts and revolutionary praxis: challenging the neoliberal university through a teaching scholars development program     

Reem Al-Mahmood  Gerardo Papalia  Sinead Barry  Minh Nguyet Nguyen  Juliane Roemhild  Terri Meehan-Andrews 《高等教育研究与发展》2020,39(1):81-98

ABSTRACT

There has been significant interest in developing academics through Teaching Scholar Development Programs across the USA, Canada, the UK, and more recently in Australia. At their core, such programs develop academics across teaching scholarship, leadership, promotion, and award opportunities, where universities reap the benefits of developing such a cadre of leaders. This paper pays witness to one such a program in an Australian university to highlight enactments of caring passionately. We use qualitative survey evaluation data, metaphor analysis and reflective practice to nuance the pleasures, passions and challenges of the lived experiences using phenomenological and metaphor lenses to describe our experiences. Metaphors provide powerful insights into the dimensions of experience as they open up how programs are perceived and experienced. Our paper disrupts traditional linear writing through rhizomatic, multivocal and multitextual encounters to challenge dominant authorial voicing. The academic identity work and emotional work required in the program is unfolded through evolving, experiencing and reflecting on the program to inform design and highlight what we have come to (re)value in our academic work when we come together to learn, share, and lead. We forge ways to be and become with and against neoliberal agendas that have choked the soul of ‘the university’ to evolve rich spaces and practices of/for reciprocity and kindness where not only learning can thrive, but where love acts – a much needed revolutionary praxis for our time.  相似文献   

To what degree does thepromotion system reward faculty research productivity?     

Flora F. Tien 《British Journal of Sociology of Education》2007,28(1):105-123

This study explores the research question: Does the promotion system in Taiwan reward faculty research productivity? By conducting event history analyses, I have demonstrated that the simple answer to the question is ‘yes.’ After controlling for the effects of demography, education, institutions and seniority, the discrete‐time logit models indicate that the number of research publications predicts the odds of promotion well. Although the promotion system is unquestionably effective in rewarding research productivity for at least some faculty, whether the system is truly universalistic or equitable remains an open question. Female and younger faculty members are clearly disadvantaged in seeking promotion. Future research is recommended to study how particularism operates in the Taiwanese academic community.  相似文献   

Educating women about HIV/AIDS: some international comparisons     

Donna Bulman  Diana Coben  Nguyen Van Anh 《Compare》2004,34(2):141-159

This paper describes current trends in the HIV/AIDS epidemic. It looks at issues and strategies involved in educating women about HIV/AIDS in the context of the global pandemic, focusing particularly on Canada and Vietnam. These strategies are essential steps in preventing the spread of HIV and in caring for those who have already developed AIDS. The strategies identified include the formulation of public policy within Canada, Vietnam, and the UK which would strive to eliminate inequality and discrimination, while at the same time positioning HIV/AIDS education within a gender‐sensitive perspective. Other educational strategies include teaching women how to practise negotiated safety while understanding the power dynamics within which safer sex must occur, being sensitive to local cultures and moving away from individualistic programmes towards programmes that focus on structural inequalities.  相似文献   

What kind of faculty are motivated to perform research by the desire for promotion?   总被引：1，自引：0，他引：1  

Flora F. Tien 《Higher Education》2008,55(1):17-32

A policy of adding a new rank to the faculty career ladder was implemented in Taiwan in 1994. It was believed that structural changes of the incentive system would change faculty research behavior. This paper explores the question: Who are motivated to perform research by the desire for promotion? A mail survey investigating Taiwanese faculty members was conducted. The results show that the answer varies by different performance measures. Those who publish for the promotion reward tend also to be motivated by other external and internal rewards. Among all rewards, the most important to many faculty is an increase in personal income. Holding one's valence score on promotion constant, faculty with better research performance tends to be those who possess doctoral degrees. The results show that faculty in public institutions perform better than their private-institution counterparts, regardless of promotion valence. Finally, alternative policies to improve faculty research performance are recommended.  相似文献   

Interpersonal Neural Synchrony During Father–Child Problem Solving: An fNIRS Hyperscanning Study     

Trinh Nguyen  Hanna Schleihauf  Melanie Kungl  Ezgi Kayhan  Stefanie Hoehl  Pascal Vrtička 《Child development》2021,92(4):e565-e580

Interpersonal neural synchrony (INS) has been previously evidenced in mother–child interactions, yet findings concerning father–child interaction are wanting. The current experiment examined whether fathers and their 5- to 6-year-old children (N = 66) synchronize their brain activity during a naturalistic interaction, and addressed paternal and child factors related to INS. Compared to individual problem solving and rest, father–child dyads showed increased INS in bilateral dorsolateral prefrontal cortex and left temporo-parietal junction during cooperative problem solving. Furthermore, the father’s attitude toward his role as a parent was positively related to INS during the cooperation condition. These results highlight the implication of the father’s attitude to parenting in INS processes for the first time.  相似文献