NOTE ON THE INCLUSION OF SITE CLASSIFICATION INFORMATION IN EQUATIONS TO ESTIMATE STRONG GROUND MOTIONS

Two main regression methods have been proposed for using site category information within ground motion prediction equations, these are: (a) joint estimation of the site category coefficients and the magnitude and distance coefficients; or (b) estimation of site category coefficients by using the residuals from the equation derived without considering soil conditions. Method (a) requires each record be assigned a site category whereas for method (b), because it relies on residuals, site information can be missing for some records. This short note finds that if the mean of the transformed distances within each site category is the same then the two methods give the same site coefficients. If, however, these means are significantly different then method (b) can yield incorrect site coefficients.     

FLEXIBLE TECHNOLOGY IN THE CLOTHING INDUSTRY: SOME EVIDENCE FROM VANCOUVER

This paper provides some preliminary evidence on the impact of flexible equipment on the clothing industry in Vancouver. It is argued that the implementation of these machines is limited to certain sectors of the industry and to specific sections of the labour process in clothing factories. In spite of the limited impact of these machines in Vancouver, the implications of flexible equipment in this manufacturing sector are far-reaching.
Get article fournit des évidences préliminaires sur l'effet de l'outillage maniable sur la confection à Vancouver. L'on dit que la réalisation de ces machines est restreinte à certains secteurs de l'industrie et aux parties précises du processus du travail dans les usines de confection. Malgré l'effet restreintde ces machines à Vancouver, l'implication de l'outillage maniable dans la confection est d'une portée considérable.     

A NOTE ON THE LOCATION OF MEDICAL FACILITIES

In this note, I present a method to estimate the desired distance between medical facilities. The survival rate of patients improves when the facility is larger, however larger facilities result in a longer driving distance to the facility which decreases the survival rate. I identify the desired distance between facilities for which the survival rate is maximized.