Hallford team named winners at Austin science/technology meet

America’s future scientists and mathematicians competed for top honors this weekend at the Siemens Westinghouse Science & Technology Competition Southwestern States regional event at The University of Texas in Austin, and Bradyite Charles Michael Hallford, along with two other teammates were among the winners. Six individuals and three teams, using visual and oral presentations, competed for college scholarships. The winners advance to the national finals, scheduled for Dec. 1-3 in Washington, D.C., where they will compete for a top prize of $100,000. The winners of this past weekend’s competition were named in an awards ceremony held at the Texas Medical Association in Austin. Debra Hsiung, a senior at Health Careers High School in San Antonio, Texas, was the individual winner of a $3,000 college scholarship for her advancements in cellular mechanisms of Paget’s disease. Hallford, Cynthia Chi, and Rebecca Williams won the team competition for their results in graph theory. They discovered new properties of an interconnection network and will divide a $3,000 scholarship. Ms. Chi is a senior at William P. Clements High School in Sugar Land, Hallford is a senior at Texas Academy of Mathematics and Science in Denton, and Ms. Williams is a senior at North Lamar High School in Paris. All regional runners-up will be awarded a $1,000 scholarship for their undergraduate or graduate education. For their project entitled: ‘The Generalization of the deBruijn Edge Sums,’ Ms. Chi, Hallford and Ms. Williams spent six weeks of the summer examining different graphs and writing proofs about the properties they deduced while attending Southwest Texas State University Honors Summer Math Camp. From researching and studying the graphs, the team found different properties of a class of graphs, called deBruijn graphs, which are used to code and decode messages. Besides its applications to cryptology, graph theory can be used to model electrical and communications networks ranging from highway systems to computers. The team’s discovery is a step toward expanding the range of graph theory applications. ‘It was very clear to us that this project was the product of outstanding team work, said Dr. Lorenzo Sadun, Associate Professor, Department of Mathematics at UT. ‘Interconnection networks play an important role in a variety of applications, and this project proved something truly new.’ Outside the lab, Hallford is involved with Junior Engineering Technical Society, Academy Ambassadors, University of North Texas Volunteer Tutoring and church activities. He would like to study logic in college and plans to become a logician. The Siemens Westinghouse Science & Technology is sponsored by the Siemens Foundation. Established in 1998 to promote and support educational activities, the Siemens Foundation recognizes America’s most promising science and mathematics students and teachers, as well as schools that strive to promote education in the core sciences. ‘Our quality of life depends on the progress of science and technology,’ said Albert Hoser, Chairman and CEO of the Foundation. ‘Without it, we would not be able to feed the number people we do today or fight diseases that could take millions of lives each year.’ The Siemens Foundation mission is based on a culture of innovation, research and educational support that is a hallmark of Siemens’ U.S. operating companies and its parent company, Siemens AG. Hallford is the son of Charles Nelson and Virginia Hallford of Brady. His father is the Pastor of the Brady Gospel Church and his mother is a teacher at Brady Elementary School. This is Hallford’s second year at Texas Academy of Mathematics and Science. After graduation he plans to attend Princeton University in Princeton, N.J.

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