Oak Ridge Today

MTAS: ORPD review to be extensive, but not clear who will be interviewed

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Oak Ridge Police Department Review Protest

Protesters who want all officers to be able to speak to a consultant reviewing the Oak Ridge Police Department are pictured above outside the Oak Ridge Municipal Building before the Monday night City Council meeting.

 

Note: This story was last updated at 9:35 a.m. April 20.

The review of the Oak Ridge Police Department will be extensive, but it’s not clear yet who will be interviewed, an official said Friday.

The proposal submitted by the Municipal Technical Advisory Service and approved by the Oak Ridge City Council in March called for interviewing a randomly selected group of police department employees. It also called for interviewing other city employees and officers and possibly talking to community leaders not directly employed by the city.

But some have expressed concern that others who want to speak, including former officers and city residents, might not be able to under the limited 30-day review and random selection proposed by MTAS.

“These men deserve to be heard, all of them,” said Christen Thomas, wife of Oak Ridge Police Department Officer John Thomas.

The independent MTAS review will use Police Management Consultant Rex Barton, a former administrative captain for the Athens, Tennessee, Police Department. MTAS is part of the Institute for Public Service at the University of Tennessee. [Read more…]

ORION astronomy club meeting features UT professor on Wednesday

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The Wednesday meeting of the ORION astronomy club will feature Professor Denise Phillips, director of graduate studies in the Department of History at the University of Tennessee in Knoxville.

Her presentation, “Can Peasants Be Scientists? Debates about the Social Reach of Science in the 18th-Century Europe,” is from her current book project, which includes both lay and professional astronomers.

The meeting is at the Grove Theater at 123 Randolph Road in Oak Ridge at 7 p.m. Wednesday April 15. (See http://orionastronomy.wordpress.com, for more information.)

ORION has supported educational and astronomy activities in Oak Ridge and the surrounding region since 1974. These include the free public star gazes at the Tamke-Allan Observatory in Rockwood scheduled on the first and third Saturday of the month. (See www.roanestate.edu/TAO or contact David E. Fields at fieldsde@roanestate.edu.)

Y-12, UT scientists develop patented chemical sensor

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Y-12 UT ChIMES Team

ChIMES uses chemical recognition materials called molecular recognition phases to detect chemical and biological warfare agents, toxic industrial chemicals, waterborne and airborne pollutants, explosives, and illegal drugs, just to list a few. The tiny white cylinders are the MRPs. The magneto elastic wire that runs through the MRPs wirelessly sends data to interpreting software. (Photo by Y-12 National Security Complex)

 

A three-year collaboration of scientists from Y‑12 National Security Complex and the University of Tennessee in Knoxville resulted in the innovation of a patented chemical sensor that is unique in several aspects: it’s inexpensive, tiny, and portable; it promises virtually limitless applications; and it allows readings through barriers.

The sensor, named ChIMES (Chemical Identification by Magneto-Elastic Sensing), received one patent last fall, and scientists anticipate approval this spring of a second patent for applications outside national security.

ChIMES is based on chemical recognition materials called molecular recognition phases, or MRPs. Using strategically selected MRPs, sensors can be made that detect chemical and biological warfare agents, toxic industrial chemicals, waterborne and airborne pollutants, explosives, illegal drugs, food pathogens, and exhaled gases that indicate disease or illegal drug use, just to name a few possibilities. In fact, the list of applications for the sensor is virtually unlimited, said Y‑12’s Vincent Lamberti, who managed the project. [Read more…]

Social benefit or Frankenfood? UT scientist cites value of genetically modified crops

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Tessa Burch-Smith and Mike Laman

Tessa Burch-Smith speaks with Michael Laman, dean of health sciences at Roane State Community College. He introduced her talk on genetically modified foods. (Submitted photo)

 

In developing countries where white rice is the dominant food, a half million pregnant women and young children become blind and two million die every year because of a Vitamin A deficiency.

On a mission to use genetic engineering to benefit humankind, scientists have genetically modified one type of rice so the grain, not just its leaves, makes Vitamin A. One published study showed that the improved nutritional content of “golden rice” could save sight and lives.

Golden rice was ready to be marketed in 2002, but critics have been calling it a Frankenfood. Golden rice is still not commercially adopted, even though in 2013, Pope Francis personally blessed its use.

This is one of the examples that Tessa Burch-Smith gave in her recent talk as part of the new Roane State Community College–Oak Ridge Institute for Continued Learning Intergenerational Lecture Series. An assistant professor at the University of Tennessee at Knoxville, she teaches and conducts research in UT’s Department of Biochemistry and Cellular and Molecular Biology. [Read more…]

Secret City Wildbots ranked No. 9 in Smoky Mountain Regionals

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Smoky Mountain Regionals Team 4265

Photos by Angi Agle

 

By Angi Agle and University of Tennessee

With the first day of competition complete, the Secret City Wildbots are ranked Number 9 in the Smoky Mountain Regionals competition held at the Knoxville Convention Center. Continuing competition Saturday morning will determine final standings for the elimination rounds Saturday afternoon.

Team selection for the elimination rounds are based partly on standing (the top eight teams are automatically entered and choose two other schools for their teammates), but partly on individual capabilities and other factors.

At the end of the elimination rounds, the winning team of three robots earns the right to enter the World Championship in St. Louis, Missouri, from April 22-25. [Read more…]

Smoky Mountain Regional robot competition kicked off Thursday with practice

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Smoky Mountain Regionals Team 4265

Photos by Angi Agle

 

By Angi Agle

The Smoky Mountain Regional robotics competition kicked off Thursday with practice rounds, and qualification matches began Friday morning.

The theme of this year’s game is “Recycle Rush.” Robots are to pick up recycle bins, put foam noodles in trash cans, and stack all of them in the center of the field. Additional points are gained for the number of containers stacked.

Human players feed foam noodles into the trash cans as the robots hold them up to a hole in the plexiglas, as well as feeding gray recycle bins into the field for the robots to stack.

Team 4265, the Secret City Wildbots, experienced some technical challenges, which were expected to be resolved Friday morning. [Read more…]

ORNL-led team demonstrates desalination with graphene membrane

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Nature Nanotech Pores

Researchers created nanopores in graphene (red, and enlarged in the circle to highlight its honeycomb structure) that are stabilized with silicon atoms (yellow) and showed their porous membrane could desalinate seawater. Orange represents a non-graphene residual polymer. (Source: Oak Ridge National Laboratory, U.S. Department of Energy)

 

By Dawn Levy

Less than 1 percent of Earth’s water is drinkable. Removing salt and other minerals from our biggest available source of water—seawater—may help satisfy a growing global population thirsty for fresh water for drinking, farming, transportation, heating, cooling, and industry. But desalination is an energy-intensive process, which concerns those wanting to expand its application.

Now, a team of experimentalists led by the U.S. Department of Energy’s Oak Ridge National Laboratory has demonstrated an energy-efficient desalination technology that uses a porous membrane made of strong, slim graphene—a carbon honeycomb one atom thick. The results are published in the March 23 advance online issue of Nature Nanotechnology.

“Our work is a proof of principle that demonstrates how you can desalinate saltwater using free-standing, porous graphene,” said Shannon Mark Mahurin of ORNL’s Chemical Sciences Division, who co-led the study with Ivan Vlassiouk in ORNL’s Energy and Transportation Science Division.

“It’s a huge advance,” said Vlassiouk, pointing out a wealth of water travels through the porous graphene membrane. “The flux through the current graphene membranes was at least an order of magnitude higher than (that through) state-of-the-art reverse osmosis polymeric membranes.” [Read more…]

20th Anniversary Tennessee Valley Corridor Summit at ETSU May 27-28

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Tennessee Valley Corridor Logo

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The Tennessee Valley Corridor will hold its 20th Annual TVC National Summit in Johnson City at East Tennessee State University on May 27-28.

The Summit will be hosted by ETSU President Brian Noland, in cooperation with Congressman Phil Roe, with the theme “Education Fuels the TVC Economy.”

“From our region’s community colleges to our outstanding four-year universities, the Corridor has a strong foundation to prepare the next generation of the workforce,” Roe said. “As co-chairman of the Tennessee Valley Corridor Caucus, I look forward to sharing some of the work that is ongoing in Congress. The Summit will look at education from the business and industry perspective and discuss how to ensure the workforce has the skills they need to find quality jobs at home, and how our educational institutions can partner with businesses and organizations for better success, which is critical for us all to learn about.” [Read more…]

Materials science duo advances next wave of alloys; work conducted at ORNL, UT

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Louis Santodonato

Louis Santodonato

Peter Liaw

Peter Liaw

KNOXVILLE—High-entropy alloys—substances constructed with equivalent quantities of five or more metals—might hold the key to future manufacturing and construction, and two researchers from the University of Tennessee in Knoxville could help pave the way.

Doctoral candidate Louis Santodonato, along with his adviser Professor Peter Liaw, both in materials science, did an extensive study into this class of materials, which are considerably lighter and less prone to fracture, corrosion, and oxidation than conventional alloys.

The pair used various methods to observe and model the atomic mixing behavior of high-entropy alloys, work that was picked up by the prestigious journal Nature Communications. [Read more…]

UT: Expertise in materials science, additive manufacturing helps draw CVMR to Tenn.

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Michael Hargett and Kamran Khoza of CVMR USA

CVMR President Michael Hargett, left, and Kamran Khozan, chairman and chief executive officer, joined local, state, and federal officials on Friday, March 13, to announce they’re moving company headquarters from Toronto to Oak Ridge, investing $313 million and adding 620 jobs.

 

Tennessee Governor Bill Haslam and Economic and Community Development Commissioner Randy Boyd announced last week that CVMR Corporation is relocating its global headquarters to Oak Ridge from Toronto, Canada. CVMR provides materials for additive manufacturing and announced it will create 620 jobs.

During recruitment of CVMR, University of Tennessee officials assisted the state and hosted the company at UT Knoxville to visit with engineering and chemistry faculty and learn about graduate programs, such as the Bredesen Center for Interdisciplinary Research and Graduate Education, as well as internships and co-ops for students, a press release said. UT System officials provided information about technology transfer, the UT Research Foundation, and Cherokee Farm Innovation Campus. CVMR also learned more about the University’s role in leading the Institute for Advanced Composites Manufacturing Innovation, or IACMI, a $259 million partnership announced by President Barack Obama in January. [Read more…]

ORNL’s Kalinin awarded Royal Microscopical Society medal

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Sergei Kalinin

With scanning probe microscopy, ORNL’s Sergei Kalinin explores nanoscale phenomena in new materials for energy and data storage to accelerate their discovery, design, and deployment. (Photo courtesy ORNL) 

 

Materials scientist Sergei Kalinin of the U.S. Department of Energy’s Oak Ridge National Laboratory has been awarded the inaugural Medal for Scanning Probe Microscopy, or SPM, by the Royal Microscopical Society, or RMS.

Kalinin is director of ORNL’s Institute for Functional Imaging of Materials, which melds capabilities in imaging, high-performance computing, and materials theory to guide the design of advanced materials for energy applications. He is also a theme leader at the  Center for Nanophase Materials Sciences, a DOE Office of Science User Facility at ORNL, and an adjunct associate professor of materials science and engineering at the University of Tennessee in Knoxville. [Read more…]

Genetically modified food the topic of RSCC-ORICL lecture on March 26

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Tessa Burch-Smith

Tessa Burch-Smith

Golden rice is a genetically modified food that could save the eyesight and the lives of many young children in countries where plain rice is the dominant food.

Yet, in many nations it has been called a Frankenfood. Even so, Pope Francis has blessed golden rice. Why?

This question and other issues regarding genetically modified foods will be addressed in the second in a series of lectures sponsored by Roane State Community College, Oak Ridge Branch Campus, and the Oak Ridge Institute for Continued Learning.

The lecture, which is open to the public, will be delivered at 3 p.m. Thursday, March 26, in the Large Lecture Room (Room 107) of the Goff Health Science and Technology Building at Roane State in Oak Ridge. Refreshments will be available after the lecture. [Read more…]