Thirty-eight of 58 patients with skeletal tuberculosis (TB) reviewed were immigrants and 20 were of British indigenous origin. Spinal involvement i 28 cases was less common than involvement of peripheral joints, bones, or tendon sheaths (30 cases). Predisposing factors, including previous TB, were present in 70% of British patients and 31% of immigrants. Follow-up study of 23 cases showed that ...

Self-Employed Immigrants in Denmark and Sweden: A Way to Economic Self-Reliance? Immigrants have a weak position in the labour market in most European countries. Many have difficulties in establishing themselves in the labour market, the employment rate is low and the hourly wages are generally lower than what could be expected from characteristics (age, gender, education). Many have to rely on...

Using 1990 Census microdata, we explore ethnic, racial, and immigrant differences in private school attendance. We find high rates of private school attendance among white natives, white immigrants, and Asian natives. In contrast, we find low private school rates among black and Hispanic natives and immigrants. Asian immigrants, and other natives. Variations in income per capita and especially ...

Analyses based on census data, vital statistics, and data from the Health and Activity Limitation Surveys show that immigrants, especially those from non-European countries, had a longer life expectancy and more years of life free of disability and dependency than did the Canadian-born. But while immigrants were less likely than the Canadian-born to be disabled, they were only slightly less lik...

INTRODUCTION To understand the lack of a gradient in mortality by neighbourhood income in a previous study, we used individual-level data from the 1991-2001 Canadian census mortality follow-up study to examine income-related disparities in life expectancy and probability of survival to age 75 years in the City of Toronto and Region of Peel. METHODS We calculated period life tables for each se...

This paper studies the effects of English proficiency on employment of U.S. foreign-born immigrants, using data from the 2001 American Community Survey (ACS). It shows that English proficiency plays an important role in immigrants’ employment and its effects on employment patterns across genders are different. Probit regressions show that immigrants with a higher level of English proficiency ar...

This paper is concerned with why immigrants appear to have consistently lower partial effects of schooling on earnings than the native born, both across destinations and in different time periods within countries. It uses the Over-Required-Under education approach to occupations, a new decomposition technique developed especially for this approach, and data from the 2000 Census of Population of...

Ant colony optimization (ACO) algorithms have proved to be able to adapt to dynamic optimization problems (DOPs) when they are enhanced to maintain diversity and transfer knowledge. Several approaches have been integrated with ACO to improve its performance for DOPs. Among these integrations, the ACO algorithm with immigrants schemes has shown good results on the dynamic travelling salesman pro...