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In vitro shoot regeneration from sunflower cotyledonary explants can be obtained in the presence of kinetin and indole-3-acetic acid. In contrast, callus proliferation is obtained in the presence of 2,4-dichlorophenoxyacetic acid on culture medium. The purpose of this study was to investigate changes in protein profiles during callus and shoot development(More)
RATIONALE AND OBJECTIVES To demonstrate that gadodiamide injection is a safe and efficient contrast agent for MRI in infants younger than 6 months of age. METHODS The authors designed a phase III multicenter nonrandomized study using a control group. Gadodiamide injection at a dosage of 0.1 mmol/kg body weight was administered to 39 children; 20 received(More)
The proper functions of cortical circuits are dependent upon both appropriate neuronal subtype specification and their maturation to receive appropriate signaling. These events establish a balanced circuit that is important for learning, memory, emotion, and complex motor behaviors. Recent research points to mRNA metabolism as a key regulator of this(More)
Failures of self-regulation in problem and pathological gambling (PPG) are thought to emerge from failures of top-down control, reflected neurophysiologically in a reduced capacity of prefrontal cortex to influence activity within subcortical structures. In patients with addictions, these impairments have been argued to alter evaluation of reward within(More)
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