Occupational segregation or "horizontal segregation" refers to inequality in pay associated with occupational earnings. The faculty incorporates health and safety programs under the School of Occupational and Public Health. Professionals advise on a broad range of occupational health matters. It specialises in degrees in nursing, physiotherapy, midwifery, occupational therapy and radiography. According to the Dictionary of Occupational Titles occupations in mathematics include the following. It assesses carcinogenicity as part of a wider assessment of the occupational hazards of chemicals. Social security ensures employee protection against unemployment, disease, old age and occupational accidents. Industry experts increasingly recognize isolation, stress, and fatigue as occupational hazards. Impairment is defined as being unable to complete routine tasks whether occupational, academic or social. Evidence regarding a possible relation with occupational risk factors is debated. Leather gloves provide protection from occupational hazards. People with high IQs are found at all levels of education and occupational categories. Quigley also voted for increases in government spending on physical and occupational therapy. The recruits graduate and receive their Military Occupational Specialty assignments. One form of occupational sexism is wage discrimination.