Why Do Part-Time Workers Earn Less? The Role of Worker and Job Skills The wages of part-time workers are considerably lower than are those of full-time workers. Measurable worker and job characteristics, including occupational skill requirements, account for much of the part-time penalty. Longitudinal analysis indicates that much of the remaining gap reflects worker heterogeneity, evidenced by ...

The RET proto-oncogene encodes a receptor tyrosine kinase expressed in neural crest derived tissues. Germline mutations in the RET proto-oncogene are responsible for three different dominantly inherited cancer syndromes: multiple endocrine neoplasia type 2A (MEN 2A), type 2B (MEN 2B), and familial medullary thyroid carcinoma (FMTC). MTC can also occur sporadically. Molecular characterisation of...

Background: Infertility about half of the men. Some factors affecting infertility is related to genetic and environmental factors. This study examined demographic characteristics of men with infertility were referred to the Shariati Hospital Infertility Clinic. Materials and Methods: This is a cross-sectional study. 200 eligible patients were enrolled with written consent Face-to-face interview...

The RET proto-oncogene has been identified as the multiple endocrine neoplasia type 2 disease gene. An association between specific RET mutation and disease phenotype has been reported. We present the phenotype-genotype of 12 Greek families with multiple endocrine neoplasia type 2A (MEN 2A) or familial medullary thyroid carcinoma (FMTC). Seventy members were studied and DNA analysis for RET mut...

Most welfare-to-work programs designed to help single mothers leave welfare for employment focus on the challenge of finding a job. This article looks beyond the point of employment to consider the difficulty many former welfare recipients have keeping their jobs. The authors review evidence showing that many families cycle back and forth between welfare and work, losing jobs and returning to p...

Indoor pesticide exposure is a growing concern, particularly from pyrethroids, a commonly used class of pesticides. Pyrethroid concentrations may be especially high in homes of immigrant farm worker families who often live in close proximity to agricultural fields, and are faced with poor housing conditions, causing higher pest infestation and more pesticide use. We investigate exposure of farm...

The Farm Worker Family Health Program (FWFHP) is a 13-year community partnership model designed to increase delivery of health care services for migrant farm worker families. During a yearly 2-week immersion experience, 90 students and faculty members provide health care services, including physical examinations, health screenings, health education, physical therapy, and dental care for 1,000 m...

BACKGROUND Sexual habits and risky sexual behaviour strongly affect public health. Available data indicate that sexually transmitted infections are increasing in many EU countries. Changes in the epidemiology of sexually transmitted diseases across Europe are among other factors suggested to be driven by changes in sexual behaviour patterns. The purpose of our study is to assess the occurrence ...