Tag Archives: university of utah

A Revealing Hand

What did you have for lunch yesterday? How many times a month do you eat nuts? How about your kids — how many servings of vegetables did they consume today?

It’s no secret that it is hard to recall the details of our meals, and that frustrating fact lies at the heart of nutrition research, complicating the task of linking foods to health outcomes like diabetes and heart disease. Some researchers look instead for telltale substances, or biomarkers, in the body that give information about how much of a certain type of food a person has eaten recently. But that solution isn’t ideal, as measuring biomarkers often requires blood, urine or even skin samples. The process can be costly, painful and cumbersome. (more…)

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Beauty And Horror

Environmental author Terry Tempest Williams finds beauty in the midst of devastation

From the devastation of disasters such as last year’s Japanese earthquake and tsunami or accidents such as the Gulf oil spill or human brutality such as the Rwandan genocide, beauty can emerge, environmental author and activist Terry Tempest Williams told an audience of about 250 at Mitchell Hall last week.

Williams spoke on campus as part of the DENIN Dialogue Lecture Series, hosted by the Delaware Environmental Institute. She was interviewed on stage by McKay Jenkins, Cornelius Tilghman Professor of English and co-director of the College of Arts and Sciences’ Environmental Humanities Initiative. (more…)

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Why Bad Immunity Genes Survive

*Study implicates “arms race” between genes and germs*

Biologists have found new evidence of why mice, people and other vertebrate animals carry thousands of varieties of genes to make immune-system proteins named MHCs–even though some of those genes make vertebrate animals susceptible to infections and to autoimmune diseases.

“Major histocompatibility complex” (MHC) proteins are found on the surfaces of most cells in vertebrate animals. They distinguish proteins like themselves from foreign proteins, and trigger an immune response against these foreign invaders. (more…)

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Six Million Years of African Savanna

*Open, grassy environments accompanied human evolution*

Scientists using chemical isotopes in ancient soil to measure prehistoric tree cover–in effect, shade–have found that grassy, tree-dotted savannas prevailed at most East African sites where human ancestors and their ape relatives evolved during the past six million years.

“We’ve been able to quantify how much shade was available in the geological past,” says University of Utah geochemist Thure Cerling, lead author of a paper titled “Woody cover and hominin environments in the past 6 million years” on the results in this week’s issue of the journal Nature. (more…)

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