David Haas

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Rodent studies suggest that prefrontal dopamine neurotransmission plays an important role in the neural processing of psychosocial stress. Human studies investigating stress-induced changes in dopamine levels, however, have focused solely on striatal dopamine transmission. The aim of this study was to investigate in vivo dopamine release in the human(More)
OBJECTIVE Patients diagnosed with a psychotic disorder and their first-degree relatives display increased reactivity to stress. Theory predicts that experience of psychosocial stress is associated both with ventromedial prefrontal and mesolimbic dopamine neurotransmission. However, while there is evidence of aberrant striatal dopamine processing in(More)
Elementary school science focuses on the early phases of science inquiry: observation, description, data collection, reflection, and reporting. Technologies afford opportunities to scaffold and extend the domains of inquiry, but successful adoption depends on their integration with classroom organization and practice. In elementary schools, small group and(More)
An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether he has approved the standard or(More)
Objective: Patients diagnosed with a psychotic disorder and their first-degree relatives display increased reactivity to stress. Theory predicts that experience of psychosocial stress is associated both with ventromedial prefrontal and mesolimbic dopamine neurotransmission. However, while there is evidence of aberrant striatal dopamine processing in(More)
Third- and sixth-grade students used a graphical simulation of the honeybee dance presented on a plasma panel deployed for several weeks in the corner of their classrooms. Among third graders, acceptance was hindered by discrepancies between the representation of phenomena in the simulation and students' prior knowledge of those phenomena. Sixth graders(More)
To obtain a better estimate of course offerings required to run a four year curriculum in Computer Science, ten years of student flow was simulated. The simulation was based on the Computer Science curriculum at Southeastern and its student's progression as of Fall, 1984. Mentioned topics will include (1) model construction (2) model validation (3)(More)
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