In spite of the acknowledged importance of professional ethics, technical students often show little enthusiasm for studying the subject. This paper considers how such engagement might be improved. Four guiding principles for promoting engagement are identified: (1) aligning teaching content with student interests; (2) taking a pragmatic rather than a philosophical approach to issue resolution;...

Railway track-bed materials are mostly in unsaturated state, and their hydro-mechanical properties depend strongly on their water contents or suctions. In France, problematic soils such as collapsible loess and swelling marl can be origin of instability problems for new lines for high speed trains, while the hydro-mechanical behaviour of interlayer soil formed mainly by interpenetration of ball...

The bill bans lead and phthalates from children's products, creates a searchable database of product complaints filed with the government for consumers to access, requires manufacturers to make it easier for consumers to learn about recalled products, increases fines and other penalties for safety violations, and increases the responsibilities and budget of the federal Consumer Product Safety C...

A debate rages over imposing liability on manufacturers or users of insecure systems. Imposing either liability or fines on the creators or users of insecure systems may work, but how are buyers to distinguish? We propose a variety of signals and analyze them. We evaluate when signals may be preferable to liability as a mechanism for enhancing security.

The new Concrete Society Publication, Cementitious Materials, CSTR74, covers the effects of cementitious materials blast furnace slag (GGBS), fly ash (FA), limestone fines and silica fume (microsilica) on the properties of concrete. This paper focuses on the effects of silica fume on all the main properties of concrete in the fresh and hardened state as defined in the publication.