*The U’s active learning biology courses garner attention*
What if you could remove lead from a person’s blood with a bacterial protein that snags the toxic metal?
Or treat spinal cord injury by shutting off a gene that prevents nerve regrowth?
Ideas like these used to be the exclusive province of practicing biologists. But they are among 14 ideas conceived and presented recently by students in the University of Minnesota’s introductory biology course. (more…)
*University of Minnesota Research Finds Sex Ratios Influence Financial Decisions*
MINNEAPOLIS / ST. PAUL — The perception that women are scarce leads men to become impulsive, save less, and increase borrowing, according to new research from the University of Minnesota’s Carlson School of Management.
“What we see in other animals is that when females are scarce, males become more competitive. They compete more for access to mates,” says Vladas Griskevicius, an assistant professor of marketing at the Carlson School and lead author of the study. “How do humans compete for access to mates? What you find across cultures is that men often do it through money, through status and through products.” (more…)
*Human rights trials for ex-dictators speed healing*
If dictators who torture, kill, or otherwise abuse their citizens’ human rights are overthrown, should they be brought to trial?
On one hand, convicting and punishing an ex-dictator and his minions would strike a welcome blow for justice in countries where it has been denied. (more…)
MINNEAPOLIS / ST. PAUL — Minnesota’s Iron Range is pocked with ponds – abandoned open pit mines – that could help energy providers more efficiently use intermittent renewable energy sources, such as wind, to meet state renewable energy mandates. A study released Friday by the University of Minnesota Duluth’s Natural Resources Research Institute shows that the water-laden pits have the potential to store wind energy using a process developed in Europe in the late 1800s.
The pumped-hydro storage process would use excess late-night wind energy to pump water uphill from the pits to a higher-elevation holding pond. Then, when electricity demand goes up during the day, the process reverses the flow and captures the energy in hydro turbines. For every 100 megawatts used to pump the water upward, the plant generates nearly 80 megawatts through the turbines. (more…)
*University-Vikings partnership helps children lead healthier lives*
Even if you’re not a football fan, you’ve probably noticed the Minnesota Vikings in the news a lot, whether it’s in regard to the 2011 season or their push for a new stadium.
What often goes unnoticed is the team’s record of community engagement and financial benevolence. Over the years the Vikings have given millions to the local community. (more…)
A U physicist will help determine if neutrinos can outrace light
Back in 2007, a physics experiment clocked elusive subatomic particles called neutrinos going faster than light.
That wasn’t supposed to happen. If the speed of light in a vacuum—denoted “c” by physicists—isn’t the universal speed limit, it would mean that Einstein put the wrong number in his famous E=mc2 equation.
University of Minnesota physicist Marvin Marshak was part of the experiment, called MINOS. It clocked beams of neutrinos shot from Fermilab, a national physics lab near Chicago, to a detector 457 miles away in the Soudan Underground Laboratory in northern Minnesota. (more…)
*University of Minnesota research suggests that wastewater treated with standard technologies contains far greater quantities*
MINNEAPOLIS / ST. PAUL — A new University of Minnesota study reveals that the release of treated municipal wastewater – even wastewater treated by the highest-quality treatment technology – can have a significant effect on the quantities of antibiotic-resistant bacteria, often referred to as “superbacteria,” in surface waters.
The study also suggests that wastewater treated using standard technologies probably contains far greater quantities of antibiotic-resistant genes, but this likely goes unnoticed because background levels of bacteria are normally much higher than in the water studied in this research. (more…)
*Increasing yield in poorer countries could decrease adverse environmental effects*
Global food demand could double by 2050, according to a new projection reported this week in the journal Proceedings of the National Academy of Sciences (PNAS).
The analysis also shows that the world faces major environmental challenges unless agricultural practices change.
Scientists David Tilman and Jason Hill of the University of Minnesota (UMN) and colleagues found that producing the amount of food needed could significantly increase levels of carbon dioxide and nitrogen in the environment, and may cause the extinction of numerous species. (more…)
