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Dr. Hassan A. Tetteh, MD, is the Health Mission Chief, at the Department of Defense (DoD) Joint Artificial Intelligence Center, serving to advance the objectives of the DoD AI Strategy, and improve war fighter healthcare and readiness with artificial intelligence implementations.

Dr. Tetteh is also an Associate Professor of Surgery at the Uniformed Services University of the Health Sciences, adjunct faculty at Howard University College of Medicine, a Thoracic Staff Surgeon for MedStar Health and Walter Reed National Military Medical Center, and leads a Specialized Thoracic Adapted Recovery (STAR) Team, in Washington, DC, where his research in thoracic transplantation aims to expand heart and lung recovery and save lives.

In the past, Dr. Tetteh has served as Chief Medical Informatics Officer, United States Navy, and Division Lead for Futures and Innovation at Navy Medicine’s Headquarters, a Command Surgeon for the National Defense University, and as a Robert Wood Johnson Health Policy Fellow, assigned to the U.S. Congress, Congressional Budget Office, (CBO).

Dr. Tetteh served as Ship’s Surgeon and Director of Surgical Services for the USS Carl Vinson battle group in support of Operation Iraqi Freedom, deployed as a trauma surgeon to Afghanistan’s Helmand and Nimroz provinces in support of Operation Enduring Freedom, and has supported special joint forces missions to South America, the Middle East, the South Pacific, Australia, and Africa. He earned both the Surface Warfare Medical Department Officer and Fleet Marine Force Qualified Officer designations, and his military honors include two Meritorious Service Medals and the Joint Service Commendation Medal.

Dr. Tetteh is also an accomplished author, including the novel “Gifts of the Heart”, “Star Patrol” (co-authored with his son Edmund Tetteh), as well as “The Art of Human Care” and “The Art of Human Care for COVID-19″ (illustrated by his daughter Ella Bleue), and has published numerous articles on surgical innovation, health information technology, ethics, wounded warriors, and process improvement. He also serves on the board of directors for the Brooklyn, New York based Arthur Ashe Institute for Urban Health, Fayetteville, Arkansas based Champions for Kids, and Miriam’s Kitchen, a Washington, D.C. based nonprofit that works to end chronic homelessness.

Dr. Tetteh received his B.S. from State University of New York (SUNY), his M.D. from SUNY Downstate Medical Center, his M.P.A. from Harvard’s Kennedy School of Government, M.B.A. from Johns Hopkins University Carey Business School, and M.S. in National Security Strategy with a concentration in Artificial Intelligence from the National War College. He completed his thoracic surgery fellowship at the University of Minnesota and advanced cardiac surgery fellowship at Harvard Medical School’s Brigham and Women’s Hospital. Dr. Tetteh is a Certified Professional in Healthcare Information and Management, board certified in thoracic surgery, general surgery, clinical informatics, and healthcare management, and is a Fellow of the American College of Surgeons and Fellow of the American College of Healthcare Executives.

The six-wheeled robot’s latest data since touching down yesterday include a series of images captured as the rover’s “jet pack” lowered it to the ground.

Less than a day after NASA ’s Mars 2020 Perseverance rover successfully landed on the surface of Mars, engineers and scientists at the agency’s Jet Propulsion Laboratory in Southern California were hard at work, awaiting the next transmissions from Perseverance. As data gradually came in, relayed by several spacecraft orbiting the Red Planet, the Perseverance team were relieved to see the rover’s health reports, which showed everything appeared to be working as expected.

Two’s company, but three’s a crowd – unless you’re trying to make graphene superconduct at higher temperatures. That is the finding of researchers at Harvard University in the US, who discovered that the superconducting state in three stacked and twisted layers of graphene is more robust to temperature increase than the equivalent state in two-layer graphene. The researchers also found evidence that superconductivity in the trilayer system comes from strong interactions between electrons, rather than weak ones as in most conventional superconductors – corroborating a result reported a few days earlier by a separate team at the Massachusetts Institute of Technology (MIT).

A sheet of graphene consists of a simple repetition of carbon atoms arranged in a two-dimensional hexagonal lattice. When two sheets of graphene are placed atop each other and slightly misaligned, they form a moiré pattern, or “stretched” superlattice that dramatically changes the electronic interactions in the material compared to its pristine counterpart. The misalignment angle is critical: in 2018, the MIT group, led by Pablo Jarillo-Herrero, discovered a so-called “magic” angle of 1.1° where the material switches from an insulator to a superconductor. This means the twisted graphene can carry electrical current with no resistance below a superconducting transition temperature, Tc, of 1.7 K.

Researchers from the German Kiel University have developed novel 3D printed ‘spiky-joints’ that provide wrist injury patients with a more flexible form of arm support.

Inspired by the natural wing micro-joints of the dragonfly, the spiky-joint features a novel interlocking mechanism that’s designed to cushion the wrist without impairing free movement. When set to its maximum rigidity, the scientists believe their device could be ideal for treating everyday strains and sprains, and preventing common hyperextension injuries in athletes.