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Dual infections harm tissues

Amanda Jamieson, newly hired assistant professor of biology, is the lead author of a paper in Science Express April 25 that traces the reason why dual infection of first a virus and then bacteria can be so deadly. In a series of experiments, she and colleagues at Yale and her current institution, the University of Vienna, used a mouse model of flu and then Legionella pneumophila to investigate what makes the combination so troublesome. The team ruled out possibilities including impaired resistance to the pathogens or an overzealous immune response.

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Double cropping fuels Brazil
Double cropping in a decade:

New research finds that double cropping — planting two crops in a field in the same year — is associated with positive signs of economic development for rural Brazilians. The research focused the state of Mato Grosso, the epicenter of an agricultural revolution that has made Brazil one of the world’s top producers of soybeans, corn, cotton, and other staple crops. That Brazil has become an agricultural powerhouse over the last decade or so is clear.

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Avoid a Cinnamon Challenge

Who would have guessed that the Internet-aided teen video craze of trying to swallow a tablespoon of cinnamon could lead to significant respiratory harm? Brown University sophomore Amelia Grant-Alfieri, that’s who. As a teen herself working with co-authors at the University of Miami, Grant-Alfieri wrote a paper published this week in the journal Pediatrics that reports: “Cinnamon inhalation can cause pulmonary inflammation, predisposing airways to epithelial lesions and scarring.

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Six selected for Mellon Mays

The Dean of the College office is pleased to announce the 21st cohort of Brown Mellon Mays Undergraduate scholars. Edward Cleofe, Patricia Ekpo, G. Maris Jones, G. Emilio Leanza, Keil Oberlander, and Ana Ramirez will conduct research under the guidance of faculty mentors, and receive stipends during their junior and senior years to support their research and preparation for graduate school.

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21% of U.S. elderly take high-risk medicines
Perilous pills:

A study of more than 6 million seniors in Medicare Advantage plans in 2009 found that 21 percent received a prescription for at least one potentially harmful “high-risk medication.” Nearly 5 percent received at least two. Questionable prescriptions are more common in the South and among people who live in poor areas.

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New Royce Fellows

A select cohort of undergraduates was inducted into the Society of Royce Fellows at Brown University President Christina H. Paxson's home on April 10, 2013. These research fellowships, given through the generosity of Charles (Chuck) Royce ’61, P’92, P’94, P’08, enable students to carry out independent research projects of their own design, regularly engage with their peers, and share their new-found knowledge with the wider world.

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How some leaves got fat: It’s the veins
Ring of veins:

A garden variety leaf is a broad, flat structure, but if the garden happens to be somewhere arid, it probably includes succulent plants with plump leaves full of precious water. Fat leaves did not emerge in the plant world easily. A new Brown University study published in Current Biology reports that to sustain efficient photosynthesis, they required a fundamental remodeling of leaf vein structure: the addition of a third dimension

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Carbon’s role in atmosphere formation
Greenhouse effect on the Red Planet?:

A new study in Proceedings of the National Academy of Sciences suggests that the way carbon moves from within a planet to the surface plays a big role in the evolution of a planet's atmosphere. If Mars released much of its carbon as methane, for example, it might have been warm enough to support liquid water.

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Kim wins NEH Summer Stipend

Associate professor Daniel Young-Hoon Kim was awarded an NEH Summer Stipend for his research on The Korean War in Color: Race, Nation and the Intimacies of Conflict. Stipends are awarded annually individuals to pursue scholarly work in the humanities during the summer.

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Sandstede named SIAM fellow

Björn Sandstede, professor and chair of applied mathematics, has been named a fellow of the Society for Industrial and Applied Mathematics. He was recognized for “contributions to applied dynamical systems involving the computational and analytical study of pattern formation in physical and biological systems.” He joins 32 other mathematicians in this year’s class of fellows. Sandstede has been at Brown since 2008, and serves as associate director of ICERM, Brown’s NSF-funded math institute.

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Brown launches TRI-Lab community initiative

Brown University announced the launch of a new initiative that will bring together students, faculty and community organizations to tackle pressing social issues. TRI-Lab — Teaching, Research and Impact — will be piloted beginning in the fall of the 2013-14 academic year with a focus on healthy early childhood development. The inaugural lab will be co-chaired by Stephen Buka, professor and chair of the Department of Epidemiology, and Elizabeth Burke Bryant, executive director of Rhode Island KIDS COUNT.

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Invasive crabs help Cape Cod marshes
Conquering hero:

Ecologists are wary of non-native species, but along the shores of Cape Cod where grass-eating crabs have been running amok and destroying the marsh, an invasion of a predatory green crabs has helped turn back the tide in favor of the grass. The counter-intuitive conclusions appear in a new paper in the journal Ecology.

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Pre-existing mineralogy may survive lunar impacts
Survivor:

Large impacts on the Moon can form wide craters and turn surface rock liquid. Geophysicists once assumed that liquid rock would be homogenous when it cooled. Now researchers have found evidence that pre-existing mineralogy can survive impact melt. 

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Brown to launch community impact initiative

Brown will celebrate the launch of TRI-Lab: Teaching, Research, and Impact, a new initiative that will bring together students, faculty and community organizations to tackle pressing social issues. The launch is scheduled for 10:30 a.m. Wednesday, April 3, 2013, at the Perry and Marty Granoff Center for the Creative Arts, 154 Angell St. Lt. Gov. Elizabeth Roberts, Brown President Christina Paxson, and others will make brief remarks. 

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