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Dietary selenium protects against selected signs of aging and methylmercury exposure.
Acute or short-term exposure to high doses of methylmercury (MeHg) causes a well-characterized syndrome that includes sensory and motor deficits. The environmental threat from MeHg, however, comesExpand
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A comparison of economic demand and conditioned-cued reinstatement of methamphetamine-seeking or food-seeking in rats
This study examined whether continued access to methamphetamine or food reinforcement changed economic demand for both. The relationship between demand elasticity and cue-induced reinstatement wasExpand
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Within-session transitions in choice: a structural and quantitative analysis.
The present study used within-session transitions between two concurrent schedules to evaluate choice in transition. Eight female Long-Evans rats were trained to respond under concurrent schedules ofExpand
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Effects of gestational exposure to methylmercury and dietary selenium on reinforcement efficacy in adulthood.
It has recently been demonstrated that developmental exposure to methylmercury (MeHg) is associated with perseveration on operant tasks. An understanding of the behavioral mechanisms underlying thisExpand
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Response acquisition and fixed-ratio escalation based on interresponse times in rats.
The effectiveness of a fixed-ratio (FR) escalation procedure, developed by Pinkston and Branch (2004) and based on interresponse times (IRTs), was assessed during lever-press acquisition. Forty-nineExpand
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What's your diagnosis: Fin Plaques and Hair-Like Structures on Wild-Caught Bluegill Fish (Lepomis macrochirus)
What's your diagnosis: Fin Plaques and Hair-Like Structures on Wild-Caught Bluegill Fish ( Lepomis macrochirus )
Fin plaques and hair-like structures on wild-caught bluegill fish (Lepomis macrochirus). Anchor worms (Lernaea spp.).
What's your diagnosis: Fin Plaques and Hair-Like Structures on Wild-Caught Bluegill Fish ( Lepomis macrochirus )