Learn More
We examined the effect of augmenting the activation of N-methyl-D-aspartate receptors during tetanic stimulation of the corpus callosum. Excitatory postsynaptic potentials were recorded from striatal neurons in an in vitro brain slice bathed in either normal or Mg(2+)-free artificial cerebrospinal fluid. Post-tetanic potentiation was followed by a(More)
Sinusoidally amplitude-modulated (SAM) noise was monaurally presented to the neotropical frog, Eleutherodactylus coqui, while recording intracellularly from auditory-nerve fibers. Neuronal phase locking was measured to the SAM noise envelope in the form of a period histogram. The modulation depth was changed (in 10% steps) until the threshold modulation(More)
Inferential sensors, or soft sensors, refer to a modeling approach to estimating hard-to-measure process variables from other easy-to-measure, on-line sensors. Since many sensors are used as input variables to estimate the output, the probability of one of the sensors fails increases signiicantly. In this paper, we propose a self-validating inferential(More)
1. Synapse formation and synapse elimination were studied in the pectoral muscle of Xenopus laevis. 2. Histology showed that fibres were not added during postmetamorphic growth. Most fibres were innervated at two widely separated junctions and this number did not change as frogs grew. 3. Intracellular recording revealed that fibres with two junctions could(More)
1. The influence of age on striatal neuron Ca2+ physiology was studied through an analysis of intracellularly recorded Ca(2+)-mediated plateau potentials. In vitro brain slices from young and aged rats were treated with the K+ channel blocker tetraethylammonium (30 mM) to facilitate the expression of plateau potentials. A sample of neurons was also filled(More)
— Input and output time delays in continuous-time state-space systems are treated separately as their effects are encountered before and after the state dynamics. Existing discretization techniques for such systems usually consider the delays to be integer multiples of the sampling time. This work develops a discretization procedure for multi-variable(More)
In this paper, a unified approach for control systems education will be presented. This approach is a friendly software and hardware platform that provides students with the necessary tools for gathering data for system identification, designing controllers, simulating the closed-loop system, and implementing the controller on real-time hardware. The(More)