Developments in computer-mediated communications are not only providing new opportunities for educators but also changing roles and competencies in learning and teaching environments. Experts agree that teaching online requires different roles and competencies. The literature includes several studies on roles and competencies for online teaching. However, as Le Boterf underlines, roles and comp...

During the past decade, a proliferation of medical studies have pointed out key roles of particulates (PM) and nitrogen oxides (NOx) emissions from vehicles powered by diesel engines. PM exposition healtheffects were associated with PM direct actions while NOx were not estimated dangerous for their direct impact, but through their potential chemical reactivity in atmosphere to form ozone with s...

epidemiological studies and clinical findings have shown an association between trauma and dissociation; dissociative experiences are also more prevalent among select populations such as substance dependent individuals and criminal offenders. in the present non-systematic review, we explored the association between trauma, dissociation, and high-risk behaviors. we aimed to find if the presence ...

The one-dimensional cutting stock problem, has so many applications in lots of industrial processes and during the past few years has attracted so many researchers’ attention all over the world. In this paper a meta-heuristic method based on ACO is presented to solve this problem. In this algorithm, based on designed probabilistic laws, artificial ants do select various cuts and then select the...

The adaptation of the BitTorrent protocol to multimedia on-demand streaming systems essentially lies on the modification of its two core algorithms, namely the piece and the peer selection policies, respectively. Much more attention has though been given to the piece selection policy. Within this context, this article proposes three novel peer selection policies for the design of BitTorrent-lik...

the one-dimensional cutting stock problem, has so many applications in lots of industrial processes and during the past few years has attracted so many researchers’ attention all over the world. in this paper a meta-heuristic method based on aco is presented to solve this problem. in this algorithm, based on designed probabilistic laws, artificial ants do select various cuts and then select the...