Mashup tools are platforms that enable end users to combine components from multiple sources and thus create, deploy, and share their own web applications. The aim of this paper is to present and discuss the findings of two empirical studies on evaluation of mashup tools by means of subjective and objective measuring instruments. In the first study, data were gathered with the employment of SUS...

Foot-ground interfaces exist in many different forms. Frequently the interface is a shoe or floor mat, and sometimes it is a carpet-like material, such as an Astroturf, providing specific biomechanical characteristics to help one perform effectively. Hence these interfaces can play an important role in improving functionality or performance, preventing injury, and reducing discomfort. Human mov...

Positive ageing and other related terms (optimal, healthy, successful, active, productive ageing) are viewed as scientific concepts, most of them operationally described by a broad set of bio-psycho-social factors, assessed through objective and subjective indicators, as well as being closely related to lay concepts reported cross-culturally by older persons. From a semantic perspective most of...