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Recent theoretical and experimental findings suggest that biological olfactory systems utilize relative latencies or time-to-first spikes for fast odor recognition. These time-domain encoding methods exhibit reduced computational requirements and improved classification robustness. In this paper, we introduce a microcontroller-based electronic nose system(More)
The effects of naloxone hydrochloride and morphine sulfate on the proestrous surge of PRL and gonadotropins (LH and FSH) were investigated in normal cycling Sprague-Dawley rats. Blood samples (0.45-0.50 ml) were withdrawn without anesthesia every 20 min from 1400-2000 h through an atrial cannula implanted the same morning. RIA revealed that a single iv(More)
Changes in hypothalamic concentration and turnover index (TI) of norepinephrine (NE), dopamine (DA), and serotonin (5HT) were studied during the first estrous cycle at the onset of puberty. Rats were killed when 40% of the population showed open vaginas. They were classified according to the state of their reproductive tract and serum LH values, as in(More)
The effects of morphine (M) and naloxone (N) on serum levels of luteinizing hormone (LH) and prolactin (PRL) in prepubertal male and female rats were investigated. N raised serum LH concentrations in female rats at 10, 15, 20, 25 and 30 days of age, but increased serum LH levels in male prepubertal rats only at 30 days of age. M significantly depressed(More)
  • H T Chen
  • 1988
In the present study both the reverse hemolytic plaque assay for detecting luteinizing hormone (LH) secretion from single cells and LH immunocytochemistry (ICC) were applied to conduct quantitative studies on sexual differences in the gonadotrope population during postnatal development. Pituitary glands from both sexes at different ages were monodispersed(More)
This article has been accepted for publication in a future issue of this journal, but has not been fully edited. Content may change prior to final publication. Abstract: This paper demonstrates that organic light-emitting diodes (OLEDs) of different structures can be characterized and modeled using a combination of the photo-electro-thermal (PET) theory and(More)