Michael Hoffman

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We present a systematic study on the recognition of 3D gestures using spatially convenient input devices. Specifically, we examine the linear acceleration-sensing Nintendo Wii Remote coupled with the angular velocity-sensing Nintendo Wii MotionPlus. For the study, we created a 3D gesture database, collecting data on 25 distinct gestures totalling 8500(More)
Acute intermittent hypoxia elicits a form of spinal, brain-derived neurotrophic factor (BDNF)-dependent respiratory plasticity known as phrenic long-term facilitation. Ligands that activate G(s)-protein-coupled receptors, such as the adenosine 2a receptor, mimic the effects of neurotrophins in vitro by transactivating their high-affinity receptor tyrosine(More)
(a) (b) Affine coordinate plane Image Plane α β β α Image Plane plane coordinate Affine Figure 4. The increases error regions and the effect of the error partitioning: The measured locations of the image basis are inside the error regions around their true locations (three small squares at left and bottom of (a)) but the transformation error implies that(More)
The increasing utilization of engineered nanomaterials (ENMs) in consumer goods will inevitably result in the release of these nanomaterials into natural and engineered aquatic systems. Recent studies have shown that several ENMs exhibit toxic effects on fish, bacteria, and human cells, thus raising concerns on the impacts of the nanomaterials on the(More)
The Engine for Management of Adaptive Pedagogy (EMAP) is the Generalized Intelligent Framework for Tutoring's (GIFT) first implementation of a domain-independent pedagogical manager. It establishes a framework within GIFT that adheres to sound instructional system design, while also providing tools and methods to create highly personalized and adaptive(More)
The Generalized Intelligent Framework for Tutoring (GIFT) is an open-source, modular, service-oriented framework which provides tools, methods and services designed to augment third-party training applications for the purpose of creating intelligent and adaptive tutoring systems. In this paper we provide a high-level overview of GIFT from the technical(More)
As the number of military, security and humanitarian operations being deployed across the world increases, there is a sense of urgency to field Non-Lethal Weapon (NLW) systems that have a range of capabilities to handle various threats and crises. Commanders in the field must be able to decide with confidence that the use of a NLW will decrease rather than(More)