Having a bad, short-term or poorly paid job can harm your mental health as much as having no job, according to a new study.

Researchers analyzed data from more than 7,000 people of working age in Australia and were not surprised to find that those who were unemployed had poorer mental health overall than those with jobs.

The U.S. Department of Labor's Occupational Safety and Health Administration cited Imperial Aluminum's Scottsboro smelting plant for 20 safety violations following an October 2010 inspection. Proposed penalties total $76,500.

OSHA cited 17 serious safety violations, including failing to use lockout/tagout procedures of energy sources, guard open-sided floors and platforms, provide standard railings for fixed stairways, mark doorways or passages along an exit route, ensure fire extinguishers were readily available, provide machine guarding, remove a front end loader from service when repairs were needed, perform periodic inspections of crane hoists, keep aisles clear and free from debris, protect electrical conductors from abrasions, ensure unused openings in electrical panels were effectively closed and provide covers for junction boxes.

Guilt might be a common side effect of texting while you're in class, but that doesn't stop students from doing it, researchers have found.

In a survey of 1,043 college students at the University of New Hampshire, almost half said they feel guilty about texting during class when it's not allowed. Even so, texting is quite common: 65 percent said they send at least one text message during a typical class.