Chris Theisen

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The University of North Dakota is developing airspace within the state of North Dakota where unmanned aircraft systems (UASs) can be flown without an on-board sense and avoid system or temporary flight restrictions. The John D. Odegard School of Aerospace Sciences, with funding from the United States Air Force, is developing a mobile ground-based radar(More)
Die Versorgung komplexer dislozierter Frakturen des proximalen Humerus wird in den letzten Jahren – besonders bei älteren Patienten – immer kontroverser diskutiert. Die Frage nach der optimalen Behandlung dieser schweren Verletzung bleibt weiter ungeklärt. Während zwischenzeitlich ein Trend zur winkelstabilen Plattenosteosynthese bestand, bewirkten(More)
A significant obstacle to the integration of unmanned aircraft (UA) into the National Airspace System (NAS) is the requirement that they incorporate a system (or systems) that reduces the risk of midair collision to a level equivalent to, or lower than, that posed by operations of manned aircraft. As no on-board system presently exists, and the likelihood(More)
Iron overloading is a serious medical problem for blood transfusion-dependent diseases such as sickle cell disease, β-Thalassemia Major, and Myelodysplastic syndromes which require chronic blood transfusions to treat their related sequelae. Alternative treatment options to iron chelation therapy are currently lacking. The goal of this study was to identify(More)
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