Rapid mask prototyping for microfluidics

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.     

‘It's The Catcher in the Rye… He said it was the kind of book you made your own': Finding Holden in Contemporary YA Literature

Published in 1951,The Catcher in the Rye encapsulated teenage angst. Some time ago David Belbin mused about the influence of Catcher on the proliferation and popularity of YA literature. Salinger's recent death has sparked a renewed interest in his work and more attention on Holden and his inheritors. This article discusses how five recent adolescent novels, with male protagonists, mirror Holden's adolescent paralysis. They exist in a liminal state between childhood and adulthood, attempting to understand the phonies around them. These protagonists help define the nature of the ‘lost’ adolescent in the current golden age of YA literature.     

Science Instruction for Students with Learning Disabilities: A Meta‐Analysis

Although science has received much attention as a political and educational initiative, students with learning disabilities (LD) perform significantly lower than their nondisabled peers. This meta‐analysis evaluates the effectiveness of instructional strategies in science for students with LD. Twelve studies were examined, summarized, and grouped according to the type of strategy implemented. Effect sizes (ES) were calculated for each study. Across all studies, a mean ES of .78 was obtained, indicating a moderate positive effect on students with LD science achievement. Findings also align with past reviews of inquiry‐based instruction for students with special needs, indicating that students with LD need structure within an inquiry science approach in order to be successful. Additionally, results suggest that mnemonic instruction is highly effective at increasing learning disabled students' acquisition and retention of science facts.     

Elitism and Meritocracy in UK Universities: the UK Needs Investment in its Labour Force

This article summarises previous academic research into university education, distinguishing between arguments for and against improving access. Several views are summarised, including structural‐functionalism, which claims that powerful social groups maintain their status and income, and human capital theory, which focuses on employee productivity. Almost all viewpoints discussed in this article support meritocracy. UK universities differ in their openness to people from disadvantaged backgrounds. Many universities, referred to here as ‘inclusive’, deserve credit for encouraging disadvantaged people to become students; in contrast, ‘exclusive’ universities tend to have fewer disadvantaged students than expected. There are barriers facing disadvantaged students, including unequal access to universities, which can at least partly be explained by private schools for rich pupils and financial burdens at university causing some students to take paid work (reducing time available for study). The UK spends less per student on universities than the world average and less than half as much as some European countries. The UK Government could increase university funding, concentrating on universities that are most inclusive and that tend to have the largest problems in affording sufficient staff and teaching facilities. This investment would give long‐term benefits to the UK economy.