With the development of economic, the traffic requirement rapidly increases in Shanghai. Besides building more new infrastructures, the administrators put forward to many countermeasures to increase the vehicle traffic capacity previously and to meet the traffic requirement in China. At the same time, the urban traffic facilities are set up by different departments of government during differen...

MCKELVEY, R. M. BOUSFIELD, A. REED, V. V. BARANYUK, AND R. CANNIFF. 1989. Preliminary results of the Lesser Snow Goose collaring program on the Alaksen National Wildlife Refuge. CWS Progress Notes No. 183. MINEEV, g. 1. 1946. Wrangel Island. Glavsevmorput Publications, Moscow. NEI, M. 1977. F-statistic and analysis of gene diversity in subdivided populations. Annals of Human Genetics 41:225-233.

During the last couple of years much attention has been given to an important ecological problem, namely forest wilddre 1]. In a recent report 5] it has been shown that, starting with very simple assumptions, a Voronoi diagram structure 4], 3] naturally emerges as the landscape geometry generated by the spread out of forest wilddre. In this paper, we provide a tool that may help people locate r...

Patients with peripheral field loss complain of colliding with other pedestrians in open-space environments such as shopping malls. Field expansion devices (e.g., prisms) can create artificial peripheral islands of vision. We investigated the visual angle at which these islands can be most effective for avoiding pedestrian collisions, by modeling the collision risk density as a function of bear...

UNLABELLED Although much work on the biochemistry of the key enzymes of bacterial perchlorate reduction, chlorite dismutase, and perchlorate reductase has been published, understanding of the molecular mechanisms of this metabolism has been somewhat hampered by the lack of a clear model system amenable to genetic manipulation. Using transposon mutagenesis and clean deletions, genes important fo...

Protection Island National Wildlife Refuge, WA, is home to the majority of breeding seabirds and harbor seals found in the Puget Sound/San Juan Island area. The island consists of a high central plateau flanked by bluffs on the north and south and by low points on the southwest and east. We analyzed the physical and vegetational changes in Protection Island from the 1860s to 1999, an interval s...

This paper investigates the refuge potential of (1) upwelling areas, (2) coral areas at medium depth, and (3) offshore bank and island reefs in a scenario of increased global warming, and thus increased sea surface temperature (SST) and increased solar UV radiation. (1) Observations on coral health and water temperature in the subtropical Atlantic (Eleuthera and Cat Island, Bahamas) and Indian ...