Rapid mask prototyping for microfluidics     

B. G. C. Maisonneuve  T. Honegger  J. Cordeiro  O. Lecarme  T. Thiry  D. Fuard  K. Berton  E. Picard  M. Zelsmann  D. Peyrade 《Biomicrofluidics》2016,10(2)

With the rise of microfluidics for the past decade, there has come an ever more pressing need for a low-cost and rapid prototyping technology, especially for research and education purposes. In this article, we report a rapid prototyping process of chromed masks for various microfluidic applications. The process takes place out of a clean room, uses a commercially available video-projector, and can be completed in less than half an hour. We quantify the ranges of fields of view and of resolutions accessible through this video-projection system and report the fabrication of critical microfluidic components (junctions, straight channels, and curved channels). To exemplify the process, three common devices are produced using this method: a droplet generation device, a gradient generation device, and a neuro-engineering oriented device. The neuro-engineering oriented device is a compartmentalized microfluidic chip, and therefore, required the production and the precise alignment of two different masks.  相似文献   

College Costs and Credit Cards: How Student Credit Card Use Influences College Degree Attainment     

Andrews  Benjamin D. 《Research in higher education》2021,62(6):885-913

Research in Higher Education - Since the turn of the twenty-first century, going to college has become increasingly financially difficult in the United States. Tuition prices continued to rise,...  相似文献   

Cosmopolitanism as Education: A Philosophy for Educators in Our Time     

David T. Hansen 《Religious education (Chicago, Ill.)》2017,112(3):207-216

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Conditioned context aversion learning in the laboratory mouse     

Sezen Kislal  David A. Blizard 《Learning & behavior》2016,44(4):309-319

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Continuity and Change: 20 Years of About Campus     

George D. Kuh 《About Campus》2015,20(5):4-13

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Handbook of test development – review of section 1, (foundations) edited by Suzanne Lane,Mark R. Raymond,and Thomas M. Haladyna     

Stuart D. Shaw 《Assessment in Education: Principles, Policy & Practice》2017,24(4):515-519

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Abandoning Either/Ors in Analyzing Shifts in Humanitarian Reporting     

David Nolan  Stephanie Brookes  Michelle Imison 《Journalism Practice》2020,14(1):17-33

ABSTRACT

The shifting constitution of journalists as humanitarian actors has profound implications for changing forms of journalism practice, as well as for the normative models through which journalists understand and reflect on that practice. In an effort to develop a more empirically-grounded engagement with change, this article explores the interview testimonies of Australian journalists who cover international and humanitarian issues. It argues that frameworks reliant on stark oppositions (between past and present, optimism and pessimism, or moral agency and material structure) are both empirically and practically problematic, and seeks to move beyond these. Engagement with data from semi-structured interviews offers insight into how journalists’ perceptions of and responses to change are shaped by the historical and shifting institutional relations in which they are implicated.  相似文献   

A Campus-Wide Investigation of Clicker Implementation: The Status of Peer Discussion in STEM Classes     

Justin D. Lewin  Erin L. Vinson  MacKenzie R. Stetzer  Michelle K. Smith 《CBE life sciences education》2016,15(1)

At the University of Maine, middle and high school teachers observed more than 250 university science, technology, engineering, and mathematics classes and collected information on the nature of instruction, including how clickers were being used. Comparisons of classes taught with (n = 80) and without (n = 184) clickers show that, while instructional behaviors differ, the use of clickers alone does not significantly impact the time instructors spend lecturing. One possible explanation stems from the observation of three distinct modes of clicker use: peer discussion, in which students had the opportunity to talk with one another during clicker questions; individual thinking, in which no peer discussion was observed; and alternative collaboration, in which students had time for discussion, but it was not paired with clicker questions. Investigation of these modes revealed differences in the range of behaviors, the amount of time instructors lecture, and how challenging the clicker questions were to answer. Because instructors can vary their instructional style from one clicker question to the next, we also explored differences in how individual instructors incorporated peer discussion during clicker questions. These findings provide new insights into the range of clicker implementation at a campus-wide level and how such findings can be used to inform targeted professional development for faculty.  相似文献   

<Emphasis Type="Bold">October’s</Emphasis><Emphasis Type="BoldItalic">Sumerki</Emphasis>     

David Randall 《Academic Questions》2017,30(3):365-370

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Introduction from Your New Editors     

Philip Rosenbaum  Ryan D. Weatherford 《Journal of College Student Psychotherapy》2016,30(2):77-78

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