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Prasenjit Mitra, professor in the College of IST and Zhang's graduate adviser; Rui Zhang, assistant professor in the College of Engineering and Zhang's graduate co-adviser; and Yusen Zhang, doctoral student in the College of Engineering -- all from Penn State -- and Wu Guo, with the Children's Hospital Affiliated to Zhengzhou University in China, contributed to this research.

"The flexibility is enormous," says Bernardo Malaca, a doctoral student at IST and the study's primary author.

IST, not too far from its record low of 83.29 hit in October 2022.

IST after the special session.

Shortly after sunset, at about 6:55 pm IST on June 2, Coromandel Express and Howrah Superfast Express were moving on parallel tracks in opposite directions, with neither of them scheduled to stop at the station.