This paper proposes the use of the VRML language for teaching Technical Drawing projections. 3-D Models and exercises are left to students over the Internet substituting the old wood models in the classroom. An introduction to the VRML language is presented. A detailed description on how models are created and an exercise is shown.

Drawing on a complexity thinking perspective on learning, the conditions of emergence for complex systems were used as an analytic framework to characterize social media learning behaviours for their potential to promote connectedness. The authors' analysis identifies trends in secondary and tertiary physics students' social media use from focus group interview data and characterizes the nature...

High-speed software development uses a number of techniques to move software quickly into production. Examples of these techniques include prototyping for fast requirement definition, releaseoriented project management for scope control, and parallel development for rapid product completion and quality control. These techniques are spreading rapidly among software developers worldwide. Using th...

A wide variety of drawing packages is available for architectural design. However, most of these systems are oriented to the production of final technical drawings, and only few support the early phase of design. In this paper, we present a new approach for a design system to support the early design phase. The method is based on a framework from architecture on the meaning of 2D drawings in ar...

Individuals and corporate users are persistently considering cloud adoption due to its significant benefits compared to traditional computing environments. The data and applications in the cloud are stored in an environment that is separated, managed and maintained externally to the organisation. Therefore, it is essential for cloud providers to demonstrate and implement adequate security pract...

In the last decade, non-integer order controllers have received great attention, due to their capacity of achieving robustness of the controlled loops with respect to gain and parameter variations of the plant. However, despite the general interest, technical literature offers few widely accepted and easy tuning techniques for these new controllers. To overcome the lack of simple tuning rules, ...

New U.S. evidence from NIPA contradicts some of the well-known Kaldor stylized facts, and call for a reformulation of the modern theory of economic growth. Among these new facts, two must be stressed: A permanent decline in the relative price of durable goods, and a permanent increase in the real equipment to real GDP ratio. To be consistent with these new facts, growth models must include at l...

Recently, a number of strategies to quantify 'awareness' have been brought to the attention of the CSCW community. An awareness value may be calculated based on the context of users to mediate interactions. This value may be used to manage, for example, (1) communication parameters and floor control in virtual 3D world teleconferencing [Benford], (2) filtration of events describing peer activit...

Organic chemists must be adept at translating between various structural diagrams that represent the spatial configurations of molecules from different orthogonal perspectives. In three studies, participants translated between three structural diagrams showing side-view (Dash-Wedge), end-on (Newman), and top-down (Fischer) perspectives. Analyses showed strong directional biases in the drawn dia...

This technical appendix is a companion of main article. In Section 2 we show how to rewrite the Bellman equations in steady state in terms of de-trended variables. In Section 3 we detail the computational algorithm to solve for the policy functions of the problem faced by employed and unemployed workers, for given equilibrium quantities. Then, in subsections 3.2 and 3.1 we discuss how we solve ...