In January of that year George D Lundberg, Editor of the Journal of the American Medical Association [JAMA], was sacked by the American Medical Association (Anderson 1999). Some five months later, Jerome P Kassirer, Editor of the New England Journal of Medicine, left the Journal when his contract with the Massachusetts Medical Society, the journal’s owners, was not renewed (Smith 1999). At the ...

The rainfall and runoff relationship becomes an intriguing issue as urbanization continues to evolve worldwide. In this paper, we developed a simulation model based on the soil conservation service curve number (SCS-CN) method to analyze the rainfall-runoff relationship in Guangzhou, a rapid growing metropolitan area in southern China. The SCS-CN method was initially developed by the Natural Re...

BACKGROUND AND PURPOSE Cholesterol is emerging as a risk factor for stroke; however, few data are available regarding the relation of cholesterol and stroke mortality in women and ethnic minorities. METHODS We evaluated the risk of death caused by total stroke, nonhemorrhagic stroke, and hemorrhagic stroke by race, age, and cholesterol quintile in 24 343 women with no previous cardiovascular ...

Building upon our previous work on two-dimensional stringy black holes and its extension to spherically-symmetric four-dimensional stringy black holes, we show how the latter retain information. A key rôle is played by an infinite-dimensional W∞ symmetry that preserves the area of an isolated black-hole horizon and hence its entropy. The exactly-marginal conformal worldsheet operator representi...

This paper considers two properties of graphs, one geometrical and one topolog-ical, and shows that they are strongly related. Let G be a graph with four distinguished and distinct vertices, w 1 ; w 2 ; b 1 ; b 2. Consider the two properties, T RI + (G) and M ON O(G), deened as follows. T RI + (G): There is a planar drawing of G such that: all 3-cycles of G are faces; all faces of G are triangl...

In the present study, 3 replanted black pepper orchards with continuously cropping histories for 10, 21, and 55 years in tropical China, were selected for investigating the effect of monoculture on soil physiochemical properties, enzyme activities, bacterial abundance, and bacterial community structures. Results showed long-term continuous cropping led to a significant decline in soil pH, organ...