This paper by Peter Dungan, Tony Fang and Morley Gunderson, which was supported by grants from Metropolis and the Social Sciences and Humanities Research Council, uses the FOCUS macroeconomic model of the University of Toronto to estimate the impact of a 100,000 per year increase in immigration over a ten-year period starting in 2012. The methodology relies on microeconomic information, much of...

We propose a simple, physical model for the studying natural images, use it to derive an analytical density function for real images and compare this function to empirical results. In addition to treating the multi-dimensional case, we propose several extensions of this model.

objective: an increasing number of studies have reported on shifts in timing and length of the growing season, based on phonological, satellite and climatologically studies. changes in the timing and length of the growing season (gsl) may not only have far reaching consequences for plant and animal ecosystems, but persistent increases in gsl may lead to long-term increases in carbon storage and...

Skeem for their thoughtful comments and suggestions.

Mendelian randomisation is a form of instrumental variable analysis that estimates the causal effect of an intermediate phenotype or exposure on an outcome or disease in the presence of unobserved confounding, using a genetic variant as the instrument. A Bayesian approach allows current knowledge to be incorporated into the analysis in the form of informative prior distributions, and the unobse...

The authors of the study, "Nasal Irrigation for the Alleviation of Sinonasal Symptoms," are Diane G. Heatley MD, Glen E. Leverson PhD, Kari E. McConnell RN, and Tony L. Kille, all from the University of Wisconsin School of Medicine, Madison, WI. Their findings will be presented Monday, September 25, 2000, at the American Academy of Otolaryngology--Head and Neck Surgery Foundation Annual Meeting...