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Scheduling observations by coordinated fleets of Earth Observing Satellites (EOS) involves large search spaces, complex constraints and poorly understood bottlenecks; conditions where stochastic algorithms are often effective. However, there are many such algorithms and the best one to use is not obvious. Here we compare multiple variants of the genetic(More)
Noise-induced hearing loss (NIHL) continues to be one of the most prevalent occupational conditions and occurs across a wide spectrum of industries. Occupational hearing loss is preventable through a hierarchy of controls, which prioritize the use of engineering controls over administrative controls and personal protective equipment. The occupational and(More)
BACKGROUND Cervical radiation for head and neck cancer has been associated with an increased incidence of carotid arterial stenosis. Modern radiation therapy delivers higher doses with increasing long-term survival. Accordingly, the prevalence of radiation-associated carotid stenosis may be higher than previously reported. Phase I of this prospective study(More)
We report 2 cases where accidents from inline skating resulted in significant genital injury to female children. When genital trauma occurs in children, it frequently raises the concern that sexual abuse might have caused the injury. Historical information provided by the child and others must be compared with the injuries to understand whether an injury(More)
We hypothesize that evolutionary algorithms can effectively schedule coordinated fleets of Earth observing satellites. The constraints are complex and the bottlenecks are not well understood , a condition where evolutionary algorithms are often effective. This is, in part, because evolutionary algorithms require only that one can represent solutions, modify(More)
BACKGROUND A recent revision of the American Joint Committee on Cancer (AJCC) staging for gallbladder cancer (6th Edition) involved some major changes. Most notably, T2N0M0 tumors were moved from stage II to stage IB; T3N1M0 disease was moved from stage III to stage IIB; and T4NxM0 (x = any) tumors were moved from stage IVA to stage III. METHODS In order(More)
We describe work in progress concerning multi-instrument, multi-satellite scheduling. Most, although not all, Earth observing instruments currently in orbit are unique. In the relatively near future, however, we expect to see fleets of Earth observing spacecraft, many carrying nearly identical instruments. This presents a substantially new scheduling(More)
OBJECTIVE To evaluate the variability in permanent partial impairment ratings of three different clinical vignettes by physiatrists throughout the United States with regard to location in the country, years of experience, and type of practice. DESIGN Participants were asked to fill out a questionnaire requesting their state of practice, number of years in(More)
PURPOSE To explore factors sexual minority youth believe make them feel safe in a health care setting. METHODS Participants in three urban programs serving lesbian/gay/bisexual/transgendered and questioning (LGBTQ) youth engaged in a four-stage process to generate, prioritize, and explain their own ideas. In Stage III, 94 youth, aged 14 to 23 years,(More)