In comparison to many artifacts of computing, the Internet has lived to an old age—it is over 35 years old. Opinions differ as to the extent that it is showing its age, and among some researchers, there is a hypothesis that the Internet of 15 years from now might be built on different principles. Whether the network of 15 years from now is a minor evolution from today’s network, or a more radic...

Network virtualization is recognized as an enabling technology for the Future Internet. Applying virtualization of network resources leads to the problem of mapping virtual resources to physical resources, known as “Virtual Network Embedding” (VNE). Several algorithms attempting to solve this problem have been discussed in the literature, so far. However, comparison of VNE algorithms is hard, a...

Economics has been defined as the science of allocation of scarce resources towards alternative ends. This definition implies that the first step in economic analysis is to determine what ends are desirable for society. Most sectors of the society would agree that sustainability is a desirable end, but there is little agreement as to what a sustainable future would look like. The University of ...

This paper investigates the logic of Ockhamism, a view according to which future contingents are either true or false. Several attempts have been made to give rigorous shape to this view by defining a suitable formal semantics, but arguably none of them is fully satisfactory. The paper draws attention to some problems that beset such attempts, and suggests that these problems are different symp...

We discuss the aspect of measurement period length in the detection of dynamic application profiles in the future Internet solutions requiring automatic network based traffic differentiation. We base the analysis on a measurement-based method to form dynamic application profiles and observe the effect of the measurement period to the quantity and quality on the dynamic application profile. We s...

Carbon membrane can be produced using a wide variety of polymer precursor materials via heat treatment process. A general concept route of precursor selection-preparation-modification-performance analysis platform for the carbon membrane has been proposed to promote the development of carbon membrane material for a wide range of application. The current review considers the recent progress of c...

We offer an initial exploration of the architectural constructs required to support selective connectivity, whereby a host can choose the degree to which it maintains a network presence, rather than today’s binary notion of “connected” or “disconnected”. The driver for our thinking is to allow hosts to go to sleep to Proposed architectural elements We can view end systems as having three basic ...

The purpose of this study was to describe student teachers’ perceptions and preferences of the type of supervision they experienced while interacting with their university supervisors and cooperating teachers. Results revealed that student teachers perceived both their cooperating teachers and university supervisors to engage in contextual and clinical supervision practices. Cooperating teacher...

In this issue... The authors provide insights into Canadians' state of retirement preparedness, not only across income groups, but also within them.