We establish a new outer bound for the capacity region of product broadcast channels. This outer bound matches Marton’s inner bound for a variety of classes of product broadcast channels whose capacity regions were previously unknown. These classes include product of reversely semi-deterministic and product of reversely more-capable channels. A significant consequence of this new outer bound is...

High energy and high brilliance make the Advanced Photon Source (APS) an ideal tool for high pressure studies. In this paper, we describe the diamond anvil cell (DAC) facility that is being developed for the APS by the GeoSoilEnviroCARS group of the Consortium for Advanced Radiation Sources (CARS). The DAC program aims at studying properties of materials across the entire pressure-temperature s...

Stratospheric ozone depletion and the concomitant increase in irradiance of ultraviolet-B radiation (UVB) at the earth’s surface represent major threats to terrestrial and aquatic ecosystems. In costal rocky shore environments, seaweeds constitute a group of organisms of particular significance to ecosystem function. Thus, impairment of seaweed performance by UVB-exposure may result in severe c...

As far as many consumers and businessmen and women are concerned, increasingly wireline and wireless services, including those provided by terrestrial and satellite systems, are considered to be substitutes and sometimes complements, regardless of the laws and regulations applicable to them. At the same time, many writers and even government agencies (such as the FCC) have suggested that users ...

Isolated lower mesospheric echoes seen by medium frequency radar at 70 N, 19 E C. M. Hall, A. H. Manson, C. E. Meek, and S. Nozawa Tromsø Geophysical Observatory, University of Tromsø, Tromsø, Norway Institute of Space and Atmospheric Studies,University of Saskatchewan, Saskatoon, Canada The Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Japan Received: 16 June 2006 – Acce...

A public process has been in place in the United States for six years to establish an HDTV terrestrial broadcasting standard. The process, having moved through a planning phase, a competition phase, and an examination phase, has now entered a cooperation phase. Remarkable progress has been made — a testament to the process. During the next few months, the American digital HDTV terrestrial broad...

It has recently been demonstrated that light dramatically enhances the toxicity of polycyclic aromatic hydrocarbons (PAHs) to the duckweed Lemna gibba L. G-3 (L. Ren, X.-D. Huang, B.J. McConkey, D.G. Dixon, and B.M. Greenberg, 1994, Ecotoxicol. Environ. Saf. 28, 160-171). To extend this research to terrestrial plants, Brassica napus L. (oil seed rape) seeds were germinated in the presence of th...