This paper attempts to argue that the future for computer-assisted assessment lies in its ability to affect change in the thinking of educators in the HE environment. As an innovative practice with considerable proven success CAA has the capability of triggering much wider and informed debate in the sector that responds in real ways to issues of lifelong learning, employability and development ...

Volumetric 3D displays are frequently purported to lack the ability to reconstruct scenes with viewer-position-dependent effects such as occlusion. To counter these claims, a swept-screen 198-view horizontal-parallax-only 3D display is reported here that is capable of viewer-position-dependent effects. A digital projector illuminates a rotating vertical diffuser with a series of multiperspectiv...

The production learning of vocalizations by manipulation of the sound production organs to alter the physical structure of sound has been demonstrated in only a few mammals. In this natural experiment, we document the vocal behaviour of two juvenile killer whales, Orcinus orca, separated from their natal pods, which are the only cases of dispersal seen during the three decades of observation of...

Global vision consensus on the next generation of wireless mobile communications, broadly termed 4G, sketches a hybrid infrastructure, comprising different wireless access systems in a complementary manner and vested with reconfiguration capabilities that facilitate a flexible and dynamic adaptation of the wireless infrastructure to meet the ever-changing service requirements. We identify essen...

Today we experience the proliferation of social networking applications. However mobile devices are only scarcely involved as individual members in such networks. In this paper we investigate how mobile phones can participate in social networks. The phonebook of the mobile devices represents basically a small social network which belongs to the owner of the device. The paper introduces mobile-c...

In this paper, a channel drop ring resonator filter based on two dimensional photonic crystal is proposed which is suitable for all optical communication systems. The multilayer of silicon rods in the center of resonant ring enables one to adjust resonant wavelength of the ring and enhance power coupling efficiency between ring and waveguide. Refractive index and radius of multilayer rods insid...