A discussion of t h e general requirements of condit ions necessary t o generate high gain i n expansion cooled recombination l a s e r s w i l l be given. Numerical modelling allows s c a l i n g laws f o r t h e condit ions of optimum gain t o be derived, and hence matched t o plasma generated from l a s e r heated carbon f i b r e s . Comparison between experiment and theory i s good. These ...

Abstract L‐ascorbic acid (AA) is an essential nutrient that plays a vital role in our day‐to‐day body function, and maintaining health, for example, by serving as antioxidant. AA oxidation generates various products, some of which have not been identified. In this investigation, we show the room temperature reaction with copper sulfate (CuSO 4 ) product exhibits blue fluorescence. We studied ho...

Recent developments in a new method of holographic computer-aided imaging are reviewed. The proposed hologram is computed from angular viewpoints of the observed three-dimensional scene. The recorded data are processed to yield a two-dimensional computer-generated hologram. When this hologram is illuminated properly, a threedimensional image of the scene is reconstructed.

This paper considers learner misconceptions information which is presented to the learner in an open learner model. We suggest that specific information about misconceptions may be of benefit to the learner, to help them reflect on their knowledge and understanding. We investigate acceptance of their misconceptions presented as animations and step-by-step text descriptions by two groups of user...

Technological advances increasingly provide marketers with the opportunity to empower consumers. Consumer empowerment is a positive subjective state evoked by consumer perceptions of increasing control. As a positive state, increasing consumer empowerment should be associated with increasing consumer satisfaction. If such a relationship exists, it may be influenced by a number of contextual var...

The quality of user-generated content in Web 2.0 dramatically varies from professional to abusive. Quality assessment is therefore a critical problem in producing, managing and retrieving information in Web 2.0. In this paper, we develop a multi-dimensional model for assessing the quality of answers in social Q&A (Question & Answer) sites.

Increasingly, news breaks on social media, where ordinary citizens post images and videos and their own commentary in the form of text. This user-generated content (UGC) is newsworthy information and invaluable for newsrooms. In order to incorporate this data into a news story, the journalist needs to process, compile and verify information on the social web within a very short timespan. This i...

In this paper we outline how computer-generated diagrams and other types of graphical devices might be used to help communicate patient-tailored information in clinical genetics.

One Facebook group has repeatedly caught the media‟s attention. The group was called "Israel" is not a country! ... Delist it from Facebook as a country! Despite the opinions of experts who highlighted the racist nature of the group, Facebook refused to take action. After unsuccessfully lobbying Facebook for intervention, an organization known as the Jewish Internet Defense Force (JIDF) took co...