Stephen R. Shaw

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Women with current posttraumatic stress disorder (PTSD) comprise 30-59% of substance abuse treatment samples and experience a more severe course than women with either disorder alone. As yet, no effective treatment for this population has been identified. This paper reports outcome results on 17 women who completed a new manual-based 24-session cognitive(More)
Many insects jump by storing and releasing energy in elastic structures within their bodies. This allows them to release large amounts of energy in a very short time to jump at very high speeds. The fastest of the insect jumpers, the froghopper, uses a catapult-like elastic mechanism to achieve their jumping prowess in which energy, generated by the slow(More)
1. There are problems associated with the notion that slow potentials alone are used to transmit information in the early stages of some visual systems. This idea and alternatives have been tested on the barnacle lateral ocellus, a simple eye with only three photoreceptors, each with its own axon about 1 cm long.2. All of the receptors have very similar(More)
Research has documented a high incidence of comorbid post-traumatic stress disorder (PTSD) and substance abuse. Women substance abusers, in particular, show high rates of this dual diagnosis (30% to 59%), most commonly deriving from a history of repetitive childhood physical and/or sexual assault. Rates for men are two to three times lower and typically(More)
OBJECTIVE The purpose of this study was to assess the validity of self-reports of substance use among outpatients dually diagnosed with substance use disorder and either bipolar disorder or posttraumatic stress disorder. METHOD Self-reports of substance use were compared with supervised urine samples collected on the same day for 55 subjects. RESULTS(More)
The cellular mechanisms by which nervous systems evolve to match evolutionary changes occurring in the rest of the body remain largely unexplored. In a distal visual neuropil of a previously unexamined ancient dipteran family, Stratiomyidae, homologues of all of the periodic neurons known already from more recent Diptera can be recognized, occupying the(More)