Graduate students at Purdue want to form a labor union, and a similar movement is happening around the country at private universities.
The breakthrough consists of melamine sponges, often found in cleaning pads or insulation.
The breakthrough could help scientists develop a vaccine.
Many international graduate students don't want to confront a boss they work for at the university, in fear of losing their place in a program.
Sigma Phi Epsilon was already on a four-year probation that began in 2013 related to incidents involving illegal drugs.
The group from Ball State when on what's called a "person to person tour," one of several categories of travel Americans are permitted to take.
During his visit, Obama has stressed his commitment to improve relations between the two nations.
Farmers enjoyed an economic boom from 2006-2014 because of increased demand for products. Today, farmers are struggling to just break even.
A study from Purdue University shows a huge lack of cooperation among county, state and federal agencies when it comes to reporting water usage.
There are many potential causes for bee die-off, but most scientists agree the parasitic Varroa mite is a major factor.