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Elementary portfolio theory implies that environmentalists optimally hold more shares of polluting firms than non-environmentalists, and that polluting firms attract more investment capital than otherwise identical non-polluting firms through a hedging channel. Pigouvian taxation can reverse the aggregate investment results, but environmentalists still overweight polluters. We introduce countervailing motives for environmentalists to underweight polluters, comparing the implications when environmentalists coordinate to internalize pollution, or have nonpecuniary disutility from holding polluter stock. With nonpecuniary disutility, introducing a green derivative may dramatically alter who invests most in polluters, but has no impact on aggregate pollution. [ABSTRACT FROM AUTHOR]

Compares the communications reliability of telemetry systems using Industrial, Scientific and Medical (ISM)-band two-way communications technology with conventional one-way telemetry in the United States. Percentage of wireless patient monitoring time attributable to a loss of patient signal; Institutional factors affecting ISM-band communications reliability; Frequency-hopping communication technology.

The article discusses the Service-Oriented Architecture (SOA) which researchers are increasingly at developing at. Certain types of SOA-based middleware are being applied by developers to the enterprise distributed real-time and embedded Document Rendering Engine (DRE) systems domain. SOA middleware can also complicate software life-cycle processes by switching responsibility from software development engineers to other types of software engineers and systems engineers. Surprisingly few configuration and deployment designs can satisfy an enterprise DRE system's functional and Quality of Services requirement, despite the flexibility that SOA middleware offers.