Abstract
The tensions between centralization and decentralization in complex enterprise web sites are addressed from the perspective of conventional information architecture, based on the “islands of information” metaphor used by Rosenfeld and Morville. The needs include the identification [...]Abstract
The authors describe how Sao Paulo State granted a 20-year concession for operating a busway, one requirement for which was that the concessionaire replace the diesel bus operation with electric traction (trolleys). This was not a"greenfield concession"but is probably the only"busway"concession [...]Abstract
The author describes a bold effort by the state government to increase private sector participation in Rio de Janeiro's urban transport sector, reduce heavy operating subsidies, and establish a foundation for making the sector sustainable. This effort was undertaken with the help [...]Abstract
The question to be addressed here is that of the agglomeration/dispersion forces that are likely to account for the location of people and jobs in rural areas and the way they explain spatial patterns in rural areas depending on urban influence. Economic geography models may provide [...]
Abstract
Network effects and spatial spillovers are intrinsic impacts of transport infrastructure. Network effects imply that an improvement in a particular link in a network generates effects in many other elements of that network, while spillover effects can be defined as those impacts occurring [...]Abstract
Electrical energy storage is often proposed as a solution for the mismatch between supply patterns of variable renewable electricity sources and electricity demand patterns. However, effectiveness and usefulness of storage may vary under different circumstances. This study provides [...]Abstract
Electrical energy storage is often proposed as a solution for the mismatch between supply patterns of variable renewable electricity sources and electricity demand patterns. However, effectiveness and usefulness of storage may vary under different circumstances. This study provides [...]Abstract
During the transition from central planning to market economies now under way in Eastern Europe, output levels first collapsed by 40 to 50 percent in most countries, then staged a modest recovery in the last two years. Longer-term revival of growth requires a resumption of investment [...]