769 research outputs found
A Roadmap for Integrating Human Rights Into the World Bank Group
Offers a framework for linking effective international development and poverty reduction with human rights, including empowering communities to use the World Bank Group's grievance mechanisms. Outlines accomplishments, shortfalls, and recommendations
The Aftermath of Copenhagen: Does International Law have a Role to Play in a Global Response to Climate Change?
Electrowetting of liquid marbles
Electrowetting of water drops on structured superhydrophobic surfaces are known to cause an irreversible change from a slippy (Cassie-Baxter) to a sticky (Wenzel) regime. An alternative approach to using a water drop on a superhydrophobic surface to obtain a non-wetting system is to use a liquid marble on a smooth solid substrate. A liquid marble is a droplet coated in hydrophobic grains, which therefore carries its own solid surface structure as a conformal coating. Such droplets can be considered as perfect non-wetting systems having contact angles to smooth solid substrates of close to 180 degrees. In this work we report the electrowetting of liquid marbles made of water coated with hydrophobic lycopodium grains and show that the electrowetting is completely reversible. Marbles are shown to return to their initial contact angle for both ac and dc electrowetting and without requiring a threshold voltage to be exceeded. Furthermore, we provide a proof-of-principle demonstration that controlled motion of marbles on a finger electrode structure is possible
Electrowetting on superhydrophobic SU-8 patterned surfaces
Electrowetting on micro-patterned layers of SU-8 photoresist with an amorphous Teflon (R) coating has been observed. The cosine of the contact angle is shown to be proportional to the square of the applied voltage for increasing bias. However, this does not apply below 40 V and we suggest that this may be explained in terms of penetration of fluid into the pattern of the surface. Assuming that the initial application of a bias voltage converts the drop from Cassie-Baxter to Wenzel regime, we have used this as a technique to estimate the roughness factor of the surface
People with Disabilities Leading the Design of Serious Games and Virtual Worlds.
Games and virtual worlds have many potential benefits for people with intellectual disabilities (ID) and autism spectrum disorder (ASD), in terms of training, education, and rehabilitation. However, because this population presents a wide range of specific needs and abilities, it can be difficult to design games which are engaging and present optimum levels of challenge to players. By including individuals with ID and ASD in the design phase we can help meet their specific needs and preferences by personalizing an intervention through the exploration of experimental techniques, methods and assistive technologies. By embracing the Responsible Research and Innovation approach, we bring science and society closer together to shape the world for future generations. A number of approaches for achieving such inclusion have been described, such as User Sensitive Inclusive Design, Universal Design, and Design for All. Here we discuss three specific examples of the design of games and virtual worlds for people with ID/ASD and illustrate how they attempt to meet their needs. Namely 1) a blended approach of computerised program and applied behaviour analysis for reading skills 2) immersive gameplay for employment and transferable skills training and 3) virtual reality training to enhance communication skills
What next for English devolution?
English devolution has been a central plank of the “Levelling Up” agenda, enjoying bipartisan support. Ideas have been put forward – but what next in practice? Max Herbertson argues that policymakers should focus on three key areas – coverage, local growth plans and a funding overhaul – if devolution is to become a reality
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