Professor and students study how microbial life changes along the river
The mercury is pushing 100, but professor Michael Sadowsky and two assistants leave the indoor coolness for the bank of the Mississippi River as it flows by the University of Minnesota Twin Cities campus.
The three men send a bucket splashing into the current and haul back a water sample. That doesn’t affect the river much, but information locked away in bacteria from the sample may tell them a great deal about how the river’s microbial communities change along its course through Minnesota and how human activity affects them.(more…)
When Mark Bee talks to his 106-year-old grandmother alone, her two enormous hearing aids enable her to understand him well.
“But at a table at Thanksgiving, with everybody talking, the devices don’t do well,” says Bee, an associate professor of ecology, evolution and behavior at the University of Minnesota.
Her difficulty in a noisy situation is called the cocktail party problem, after the background babble that stymies many hearing-impaired people trying to pick out individual voices at a party. But in ponds all over the world, frogs handle a similar problem, and Bee hopes to learn enough about how they do it to put the principles to work helping people like his grandmother. (more…)
Global warming villain CO2 may have a surprisingly green future
The next frontier in the search for renewable energy lies less than two miles from where you are now.
Unless you’re reading this on the International Space Station.
Geothermal heat a mile or two deep in Earth’s crust is a potential source of energy that could be tapped by an unlikely carrier: carbon dioxide (CO2), the central villain in global warming. That energy, unlike solar and wind, could be easily turned on and off without the intermediate step of being stored in a battery. And it would be constant and reliable. (more…)
U alum Maria Bamford gains fame as a comic, voice actress, and quirky commercial character
Sometimes it’s good to draw the long straw on work assignments.
That’s how it feels when you start doing research (read: watch a few Youtube clips) for a story on Maria Bamford, the University of Minnesota alumna who has made her mark as a stand-up comedienne, a versatile voice-over actress, and, in recent years, as the hyper-intense Black Friday shopper in Target television commercials.
Bamford’s credits are lengthy, including multiple appearances on the late-night talk show circuit (“The Tonight Show,” “Late Night with Conan O’Brien,” “The Late Late Show with Craig Ferguson,” and “Jimmy Kimmel Live”), her own web series, and a number of comedy albums. She has guest starred on “The Sarah Silverman Program” on Comedy Central, and is the first female comic to have two half-hour “Comedy Central Presents” specials.(more…)
‘Greener’ and more engaging experiments draw students in
As a college student, Michelle Driessen had an all-too-typical experience.
“I hated general chemistry,” she says. “I thought it was terribly boring.”
She had plenty of company. Experiments were all laid out in advance, and the goal seemed to be to get to a predetermined result without blowing up the glassware.
In the old days, “very few students appreciated the point of most general chemistry labs,” adds Driessen. “With cookbook chemistry, you couldn’t have anything go wrong or deviate [from what’s supposed to happen], but I find those things to be the most interesting part of science.” (more…)
U researchers map emperor penguin colonies by satellite
Emperor penguins may be icons of the Antarctic, but they aren’t immune to disturbances in their environment.
As climatic and other changes unfold, emperors may dwindle in numbers. But how to tell, when researchers can’t access all the emperor colonies dotting the Antarctic ice shelves and count heads every year?
University of Minnesota law professor Dale Carpenter’s first book, Flagrant Conduct, took him nearly nine years of research and writing to complete. Research that included, he says, “sitting in police department parking lots at 3 a.m., trying to catch officers going on and off duty so that I could interview them.”
He characterizes the amount of time he put into the book not as a job but as a way of life. If he had been looking for a payoff in writing it, he found it. With reviews in The New Yorker, The New York Review of Books, and this past Sunday, the crème de la crème of the review world—the cover of The New York Times Book Review—it’s clearly a hit with critics. (more…)
*Loss of milkweed in Midwestern farm fields harms butterflies, a study shows*
If you’re a gardener, milkweed may not be at the top of your list.
But if you love Minnesota’s state insect—the monarch butterfly—maybe it should be.
Monarchs lay their eggs on milkweed, but the plant is disappearing from what used to be a prime reservoir: Midwestern farm fields. A new study by University of Minnesota monarch expert Karen Oberhauser and her Iowa State colleague John Pleasants ties a decade-long decline in monarch populations to the loss of milkweed from the corn and soybean fields that blanket the region.(more…)
