Oak Ridge Today

UT professor offers tips to help avoid, deal with flu season

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Paul Campbell Erwin

Paul Campbell Erwin

Forty states—including Tennessee—are already experiencing widespread and increasing influenza infections this season, according to a recent report from the Centers for Disease Control and Prevention.

Paul Erwin, head of the Department of Public Health at the University of Tennessee in Knoxville, offers three simple tips that can go a long way in protecting you from getting or spreading the flu:

  • Get vaccinated.

Erwin noted that flu vaccines are still available and effective. [Read more…]

Death by Chocolate event at Roane State to feature tasty treats, lecture by Bill Bass

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Bill Bass

Bill Bass

Enjoy an evening of delectable desserts from local chefs and a fascinating lecture by Body Farm founder Bill Bass at the Roane State Foundation’s Death by Chocolate fundraiser on Feb. 13.

The event will be held from 6-8 p.m. on Thursday, Feb. 13, in the O’Brien Theatre at Roane State’s Roane County campus in Harriman. The chocolate tasting, featuring dozens of samples from area businesses, begins at 6 p.m. The lecture by Bass will start at 7 p.m. Proceeds from ticket sales will be used for student scholarships.

Bass founded the University of Tennessee’s Anthropological Research Facility, an outdoor laboratory dedicated to the study of human decomposition. The facility, often referred to as the “Body Farm,” was featured prominently in the novel “The Body Farm” by best-selling author Patricia Cornwell. [Read more…]

ORNL-UT researchers invent ‘sideways’ approach to 2-D hybrid materials

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heterostructure-anping

ORNL and UT researchers have invented a method to merge different 2-dimensional materials into a seamless layer. This colorized scanning tunneling microscope image shows a single-atom sheet composed of graphene (seen in blue) combined with hexagonal boron nitride (seen in yellow).

Researchers at Oak Ridge National Laboratory and the University of Tennessee in Knoxville have pioneered a new technique for forming a two-dimensional, single-atom sheet of two different materials with a seamless boundary.

The study, published in the journal Science, could enable the use of new types of 2-D hybrid materials in technological applications and fundamental research.

By rethinking a traditional method of growing materials, the researchers combined two compounds—graphene and boron nitride—into a single layer only one atom thick. Graphene, which consists of carbon atoms arranged in hexagonal, honeycomb-like rings, has attracted waves of attention because of its high strength and electronic properties. [Read more…]

ORNL researchers, UT-ORNL Governor’s Chair elected APS fellows

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ORNL APS Fellows

From left, Oak Ridge National Laboratory researchers Michael S. Smith and Viatcheslav V. Danilov and University of Tennessee-ORNL Governor’s Chair Steven Zinkle have been elected fellows of the American Physical Society. (Submitted photo)

Two researchers from Oak Ridge National Laboratory and a University of Tennessee-ORNL Governor’s Chair professor have been elected fellows of the American Physical Society.

The ORNL researchers are Viatcheslav V. Danilov of the Research Accelerator Division and Michael Scott Smith of the Physics Division. Steven J. Zinkle, formerly of ORNL and now a UT-ORNL Governor’s Chair, was recognized for his work during a 28-year career at the national laboratory.

Danilov was recognized by his APS peers “for fundamental and creative solutions to a wide range of accelerator physics issues, including laser stripping ring injection, integrable beam dynamics, space charge and instabilities.” [Read more…]

Tuesday presentation by UT professor to focus on science, ethics, war

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Jeffrey Kovac

Jeffrey Kovac

A University of Tennessee professor will discuss science and war-related research during a Tuesday presentation in Oak Ridge. (Note: This presentation was canceled due to the weather and could be rescheduled later.)

Jeffrey Kovac, a UT chemistry professor and director of undergraduate studies, will be the guest speaker at Lunch with the League at noon Tuesday.

“Science and the military have had a long and often mutually beneficial relationship, a relationship that is seldom questioned,” a press release said. “But because scientists are simultaneously professionals, citizens of a particular country, and human beings, sometimes with strong religious convictions, they are subject to conflicting moral and practical demands. In this presentation, Dr. Kovac will examine the question of whether scientists should engage in war-related research and, if so, under what circumstances.” [Read more…]

Supercomputers help ORNL researchers identify molecular switch that controls cell behavior

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E. coli Chemoreceptor Switch

Red and blue molecules represent a conformational switch essential to the signaling mechanism of an E. coli chemoreceptor that researchers discovered using computational molecular dynamics simulations. (Image credit: Davi Ortega)

If scientists can control cellular functions such as movement and development, they can cripple cells and pathogens that are causing disease in the body.

Supported by National Institutes of Health grants, researchers at Oak Ridge National Laboratory, the University of Tennessee, and the UT-ORNL Joint Institute for Computational Sciences discovered a molecular “switch” in a receptor that controls cell behavior using detailed molecular dynamics simulations on a computer called Anton built by D.E. Shaw Research in New York City. To study an even larger signaling complex surrounding the switch, the team is expanding these simulations on Titan—the nation’s most powerful supercomputer, managed by the Oak Ridge Leadership Computing Facility at ORNL.

Researchers identified the molecular switch on Anton (which was designed to perform speedy molecular dynamics simulations) by simulating 140,000 atoms that make up the signaling part of the Tsr chemoreceptor that controls motility in E. coli. Like other receptors, Tsr spans the cell membrane, communicating to proteins inside the cell in order to respond to threats or opportunities in the environment. [Read more…]

Family identifies woman who died after falling into Civic Center fountain

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Oak Ridge Civic Center Fountain

Family members have identified an Oak Ridge woman who fell into the fountain at the Civic Center in June and died in the hospital 13 days later.

Family members have identified an Oak Ridge woman who fell into the fountain at the Civic Center in June and died in the hospital 13 days later.

Sarah Christine McAdams, 26, was found floating face down in the murky brown water, which is about 14” inches deep, on June 3. Two people reported the incident to the Civic Center staff, while a third tried to pull McAdams out of the water, city officials said.

Rescuers tried to resuscitate her immediately, and McAdams, who lived on Manhattan Avenue in the Woodland neighborhood, was rushed to Methodist Medical Center, city officials said at the time, without identifying the woman.

She died June 16, according to records provided by her mother, Lori Holt, of Murrell’s Inlet, S.C., which is south of Myrtle Beach. [Read more…]

Bioluminescence technology from UT a top innovation, researchers have ORNL connection

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University of Tennessee Bioluminescence and Microtiter Plate

Pictured above is a micro titer plate showing light signals in cells, illustrating bioluminescence technology. (Photo courtesy University of Tennessee)

KNOXVILLE—Technology that lights up cells to enable study of the effects of drugs and monitor disease is among The Scientist magazine’s Top 10 innovations of 2013. It’s also a University of Tennessee technology and licensed by a Knoxville-based startup company.

Technology using humanized bacterial luciferase developed by UT researchers and licensed by 490 BioTech, founded by two UT Knoxville faculty members and two then-graduate assistants, is ranked sixth on the magazine’s list. For more about the innovation list, visit here.

“The development of this technology originated more than 10 years ago, and with hard work by past graduate students and key financial support from the National Institutes of Health, the National Science Foundation, and University of Tennessee Research Foundation, it evolved into a marketable product that can be used to make pharmaceutical drugs safer, better, and cheaper,” said Steven Ripp, co-founder and chief operating officer of 490 BioTech and research associate professor at UT Knoxville. “Being recognized as a Top 10 technology is a significant milestone for our company, and it will greatly assist in mainstreaming our product toward better disease management and improved health care.” [Read more…]

UT economics professor to discuss virtues, limits of free markets

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Marianne Wanamaker

Marianne Wanamaker

An assistant economics professor at the University of Tennessee will discuss the virtues and limits of free markets during a noon lecture Tuesday.

Marianne Wanamaker will be the guest speaker at Lunch with the League at lunchtime Tuesday at the Oak Ridge Unitarian Universalist Church. Her presentation is sponsored by the League of Women Voters of Oak Ridge.

Wanamaker is an assistant professor in the Department of Economics in the University Of Tennessee’s College of Business Administration. [Read more…]

Family, friends remember Cub Scout who wanted to be a police officer

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Treí-Roan Vann and Football Trophy

Treí-Roan Vann is pictured above with a second-place football trophy in the Boys Club VFC Conference on Oct. 26. (Photo courtesy Crist Vann)

Like his older brother David, Treí-Roan Vann wanted to be a police officer when he grew up. He also wanted to play soccer this year. He never got the chance to do either.

Treí, a third-grade student at Linden Elementary School, was found unresponsive on his school bus at about 4:10 p.m. Tuesday near his home on Wilberforce Avenue. He was taken by ambulance to Methodist Medical Center, where he was pronounced dead.

His father Crist Vann said Treí, as he was called, was a very good eight-year-old.

“He didn’t get into too many problems,” Vann said Wednesday night. “He was always concerned about people. He was always willing to lend a helping hand. He was always the life of the room.”

It’s not clear what happened to Treí on Tuesday.

“He went to school,” Crist Vann said. “Everybody at school said he was fine. On the way home, he was unresponsive. They thought he was asleep. They couldn’t bring him back.” [Read more…]

ORNL’s Keller, Babu, Hazen elected AAAS fellows

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ORNL Martin Keller, Sudarsanam Suresh Babu, and Terry Clyde Hazen

Martin Keller, associate director for energy and environmental sciences at Oak Ridge National Laboratory, and UT-ORNL Governor’s Chairs Suresh Babu and Terry Hazen have been elected fellows of the American Association for the Advancement of Science. (Photos courtesy ORNL)

The associate laboratory director for Energy and Environmental Sciences at Oak Ridge National Laboratory and two University of Tennessee-ORNL Governor’s Chair researchers are among the newly elected fellows of the American Association for the Advancement of Science.

EES Associate Laboratory Director Martin Keller and Governor’s Chairs Sudarsanam Suresh Babu and Terry Clyde Hazen will receive the highest honor bestowed by members of the AAAS on their peers. AAAS is the world’s largest general scientific society and publisher of the journal Science.

Keller came to ORNL in 2006 from Diversa Corporation, where he held a series of research management positions. He was cited by his AAAS peers for “distinguished contributions to bioenergy science, and for dynamic and inspiring leadership of innovative partnerships to advance the development and deployment of clean energy technologies.” [Read more…]

Fisher to run for Anderson County chancellor in 2014

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Brandon FIsher

Brandon FIsher

He’s been the juvenile court judge for close to four years, and now Brandon Fisher is running for Anderson County chancellor in the 2014 election.

Fisher was appointed Anderson County juvenile court judge in January 2010, replacing April Meldrum after she resigned, and he was elected in August 2010.

Fisher will seek to fill the seat now held by Chancellor William Lantrip, who has announced he will retire at the end of this eight-year term. [Read more…]