Hispanic workers are approximately fifty percent more likely to use contacts with friends or relatives to find work than white or black workers. It is possible that the reliance on co-ethnic job contacts constrains Hispanics' labor market opportunities by increasing employment segregation and lowering wages. Indeed, the use of contacts is correlated with lower wages and job prestige for Hispani...

Background: Depression is a significant public health problem for adolescents. The goal of this study was to evaluate the moderating role human support in an online depression prevention program on both outcomes and overall engagement with intervention. CATCH-IT Internet-based that has been shown reduce symptoms adolescents who report elevated symptom scores, compared education (HE) control gro...

The aim of this study was to assess the accuracy and utility of administrative health data in identifying persons with inflammatory bowel disease on a population basis and to determine the incidence and prevalence of this disease in the Canadian province of Manitoba. The data from Manitoba Health (the province's single insurer) were used to identify residents with physician and/or hospital cont...

We contrast Granovetter’s hypothesis (Granovetter, M. (1973). American Journal of Sociology, 78, 1360–1380; Granovetter, M. (1974). Getting a Job: A Study of Contacts and Careers. University of Chicago Press; Granovetter, M. (1995). Getting a Job: A Study of Contacts and Careers. University of Chicago Press) that social networks help individuals to find better-paid jobs with a new model, which ...

Abstract Gearboxes are usually lubricated with oil or grease to reduce friction and wear dissipate heat. However, gearbox applications that cannot be grease, for example in the space food industry, commonly solid lubricants. Especially lubricants a lamellar sliding mechanism like graphite molybdenum disulfide (MoS 2 ) diamond-like carbon (DLC) coatings can enable very low coefficients of fricti...

BACKGROUND Understanding of the effects of human immunodeficiency virus (HIV) infection and antiretroviral treatment (ART) on Mycobacterium tuberculosis transmission dynamics remains limited. We undertook a cross-sectional study among household contacts of smear-positive pulmonary tuberculosis (TB) cases to assess the effect of established ART on the infectiousness of TB. METHOD Prevalence of...