Tag Archives: university of minnesota

Black phosphorus is new ‘wonder material’ for improving optical communication

Phosphorus, a highly reactive element commonly found in match heads, tracer bullets, and fertilizers, can be turned into a stable crystalline form known as black phosphorus. In a new study, researchers from the University of Minnesota used an ultrathin black phosphorus film—only 20 layers of atoms—to demonstrate high-speed data communication on nanoscale optical circuits. (more…)

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Research Uncovers Connection between Craigslist Personals, HIV Trends

Entry of site in a community tied to 16% increase in HIV   

Craigslist’s entry into a market results in a 15.9 percent increase in reported HIV cases, according to research from the University of Minnesota published in the December issue of MIS Quarterly.  When mapped at the national level, more than 6,000 HIV cases annually and treatment costs estimated between $62 million and $65.3 million can be linked to the popular website. (more…)

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Live longer? Save the planet? Better diet could nail both

New study shows healthier food choices could dramatically decrease environmental costs of agriculture

As cities and incomes increase around the world, so does consumption of refined sugars, refined fats, oils and resource- and land-intense agricultural products such as beef. A new study led by University of Minnesota ecologist David Tilman shows how a shift away from this trajectory and toward healthier traditional Mediterranean, pescatarian or vegetarian diets could not only boost human lifespan and quality of life, but also slash greenhouse gas emissions and save habitat for endangered species. (more…)

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Trials help alleviate tribulations

For those of us who have spent our lives in the United States, it’s difficult to imagine the reality of citizens living in countries that have been torn apart by leaders ruling with intimidation and repression—and without regard for human rights.

At the University of Minnesota, research led by Kathryn Sikkink has helped to quantify the efforts of “transitional countries”—those moving toward democracy—to improve those human rights. (more…)

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Time capsule of the Big Bang

Using one of the world’s premier telescopes, University of Minnesota astrophysicists Evan Skillman and Kristen McQuinn have discovered a priceless relic of the Big Bang in the Milky Way’s back yard.

They are part of an international team that found Leo P, a tiny galaxy in the constellation Leo that contains relatively few stars, but has large clouds of hydrogen and helium. The ratio of elements in those clouds is of great interest because it is believed to mirror conditions in the first few minutes after the Big Bang. (more…)

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The Death of the Death Penalty?

Texas leads the nation in executions. Minnesota has no death penalty. So two researchers—one from the University of Minnesota and one from the University of Texas at Austin (UT Austin)—teamed up to find out something no one had ever looked at before: what the death penalty does for the murder victims’ families. They compared family survivors’ experiences in Texas with Minnesota, the latter one of 18 states with life without the possibility of parole (LWOP) as its “Ultimate Penal Sanction.”

The study used in-person interviews with victims’ families to examine the death penalty process and its long-term impact on the families. (more…)

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