Nous présentons une réalisation purement fonctionnelle et paresseuse de la technique du mode inverse de différentiation algorithmique. Cette technique, qui permet de calculer de manière précise et efficace les dérivées des expressions numériques dans un programme, est devenue indispensable dans plusieurs branches de programmation scientifique. Le mode inverse ou adjoint demande souvent l’usage ...

Data warehouses collect and maintain large amounts of data from several distributed and heterogeneous data sources. Because of security reasons, operational requirements, and technical feasibility it is often impossible for data warehouses to access the data sources directly. Instead data warehouses have to replicate legacy information as detail data in order to be able to maintain their summar...

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...

The fungi strains were tested in Bioscreen automated system to select the best nutritional source. Following, shaking submserse cultures were studied in media containing sole carbon or nitrogen source. The growth of these strains improved in media containing vegetable oil, with high concentration of lipids. The high concentration of γ-linolenic acid was obtained with M. circinelloides in cultur...

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...

A range of different scientific disciplines are explored for what they might contribute to an understanding of the economic and other factors that influence mass media, and how the media in turn influence the political climate and the democratic process in modern democracies. The contributions from the different disciplines are combined into an integrated model of a causal network. This tentati...

A range of different scientific disciplines are explored for what they might contribute to an understanding of the economic and other factors that influence mass media, and how the media in turn influence the political climate and the democratic process in modern democracies. The contributions from the different disciplines are combined into an integrated model of a causal network. This tentati...

BACKGROUND Coverage of health in Nepali print media is quite a recent phenomenon despite readers' ample appetite for it. Dominated by politics, Nepal's print media has been marginally publishing news pieces, features, editorials and op-ed articles, photographs and cartoons on health, though marginally. But the media did not wake up to the issues of human resources for health until lately. MET...

BACKGROUND Selective chromogenic media allowing one-step meticillin-resistant Staphylococcus aureus (MRSA) isolation and identification are widely used. However, the changing epidemiology of MRSA means that the suitability of these chromogenic media requires investigation. AIM To evaluate the following chromogenic media - Colorex MRSA, MRSA Select II, ChromID MRSA, and MRSA Brilliance 2 - for...

A range of different scientific disciplines are explored for what they might contribute to an understanding of the economic and other factors that influence mass media, and how the media in turn influence the political climate and the democratic process in modern democracies. The contributions from the different disciplines are combined into an integrated model of a causal network. This tentati...