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We have examined the role of the acidic residues Asp2 and Glu4 at the NH2 terminus of Saccharomyces cerevisiae actin through site-directed mutagenesis. In DNEQ actin, these residues have been changed to Asn2 and Gln4, whereas in delta DSE actin, the Asp2-Ser-Glu tripeptide has been deleted. Both mutant actins can replace wild type yeast actin. Peptide(More)
An investigation has begun to evaluate the behavior of small unmanned aerial vehicles (SUAVs) and micro aerial vehicles (MAVs) flying through an urban setting. This research is focused on a cooperative scenario between a SUAV and MAVs for the Air Force Research Laboratory (AFRL) Cooperative Operations in UrbaN TERrain (COUNTER) 6.2 research and flight(More)
Future access to space vehicles will be required to achieve a high level of safety and operability. In order to achieve these goals, integrated adaptive guidance and control can be used to recover a vehicle from off-nominal conditions, such as control effector failures, engine out, loss of engine gimbal, and so on. In this work, a preliminary configuration(More)
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