William K. Coulter

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Ten patients with rheumatoid arhritis treated with gold sodium thiomalate developed thrombocytopenia without bone marrow asplasia. There was no life-threatening blood loss, but petechiae, purpura, or echymoses were seen in eight patients. The serum gold levels monitored in one patient did not exceed levels seen in patients without thrombocytopenia. In three(More)
Sparse coding networks, which utilize unsupervised learning to maximize coding efficiency, have successfully reproduced response properties found in primary visual cortex [1]. However, conventional sparse coding models require that the coding circuit can fully sample the sensory data in a one-to-one fashion, a requirement not supported by experimental data(More)
Sparse coding networks, which utilize unsupervised learning to maximize coding efficiency, have successfully reproduced response properties found in primary visual cortex [1]. However, conventional sparse coding models require that the coding circuit can fully sample the sensory data in a one-to-one fashion, a requirement not supported by experimental data(More)
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