Jeffrey A. Hoffman

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BACKGROUND Growth in mobile phone penetration has created new opportunities to reach and improve care to underserved, at-risk populations including those with tuberculosis (TB) or HIV/AIDS. PURPOSE This paper summarizes a proof-of-concept pilot designed to provide remote Mobile Direct Observation of Treatment (MDOT) for TB patients. The MDOT model(More)
The recent decadal survey report for planetary science (compiled by the National Research Council) has prioritized three main areas for planetary exploration: (1) the characterization of the early Solar system history, (2) the search for planetary habitats, and (3) an improved understanding about the nature of planetary processes. A growing number of ground(More)
Crowdsourcing is being researched as a technique to develop small-scale spaceflight software by issuing open calls for solutions to large crowds of people with the incentive of prizes. There is widespread investment of resources in the fields of Science, Technology, Engineering, Mathematics (STEM) education to improve STEM interests and skills. This thesis(More)
Traditionally, Mars rover missions have been conceived with a single point design approach, exploring a limited architectural trade space. The design of future missions must resolve a conflict between increasingly ambitious scientific objectives and strict technical and programmatic constraints. Therefore, there is a need for advanced mission study(More)
There is a belief that persons diagnosed with antisocial personality disorder (APD) do not respond well to treatment, but the existing research has not supported this hypothesis. This study examined the relationship of APD to therapeutic community (TC) treatment outcomes. A total of 275 men and women were randomly assigned to two TCs. It was hypothesized(More)
The purpose of the current study was to examine differences in responses of older adults (age 55 and above) and younger adults (ages 18 to 54) to the Drug Abuse Problem Assessment for Primary Care (DAPA-PC), a computerized drug and alcohol abuse screening instrument developed for primary care settings. Data were collected from a diverse population of 327(More)
The future exploration of small Solar System bodies will, in part, depend on the availability of mobility platforms capable of performing both large surface coverage and short traverses to specific locations. Weak gravitational fields, however, make the adoption of traditional mobility systems difficult. In this paper we present a planetary mobility(More)
Increasing prevalence of human–robot systems in a variety of applications raises the question of how to design these systems to best leverage the capabilities of humans and robots. In this paper, we address the relationships between reliability, productivity, and risk to humans from human–robot systems operating in a hostile environment. Objectives for(More)
The U.S. Food and Drug Administration (FDA) has enforced federal requirements related to the use of methadone since 1972; regulations essentially have not changed for nearly 30 years. With Congress' recently released federal regulations for opioid treatment programs (OTPs), however, oversight of OTPs has shifted from the FDA to the Substance Abuse and(More)