Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 60 for “"Nerve Fibers"”.
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A model for firing patterns of auditory nerve fibers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1963.
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Discharge characteristics of auditory nerve fibers for pulsatile electrical stimuli
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1996.
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A Study of Ionic Permeability Changes Underlying Excitation in Myelinated Nerve Fibers of the Frog
… potential and related phenomena typical of nerve excitation. Constraint of the membrane potential (the voltage clamp) provided direct measurement of the current carried by the movement of ions through the membrane. By applying operational procedures analogous to those used by Hodgkin and …
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Methods of frequency selectivity and synchronization measurement in single auditory nerve fibers : application to the alligator lizard
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1985.
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The response of single auditory-nerve fibers in the cat to single tones: synchrony and average discharge rate.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1974. Ph.D.
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Modellering av nervmönster med spatiala punktprocesser
… can sometimes develop diabetic neuropathy, a nerve disease which can infuse numbness and pain. It has been observed that the end points of nerve fibers in the epidermis, which is the outermost living layer of the skin, appear more clustered on patients with diabetic neuropathy [7]. Attempts to …
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Connexin-32 and Connexin-43 Immunoreactivity in Rodent Taste Buds
… connexin–32–LIR co–localizes with P2X2–LIR in nerve fibers and in a small subset of NCAM–LIR cells. Connexin–32–LIR does not co–localize with α–gustducin–LIR or PLCβ2–LIR. We observed that connexin–43–LIR is present in a subset of PLCβ2–LIR cells and in a subset of α–gustducin–LIR cells. …
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Nerve Fiber Diameter Measurements Using Hematoxylin and Eosin Staining and Brightfield Microscopy to Assess the Novel Method of Characterizing Peripheral Nerve Fiber Distributions by Group Delay
… are known to selectively impact various size nerve fibers, which often makes it difficult to diagnose which peripheral neuropathy a patient might have. The nerve conduction velocity diagnostic test provides clinically useful information in the diagnosis of some peripheral neuropathies. This …
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Refining Our Understanding of the Hematopoietic Stem Cell Niche
… is that HSCs, periarteriolar stromal cells, and nerve fibers are closely associated in rare periateriolar niches. Using a novel marker to identify HSCs in three-dimensional confocal images, -catulin-GFP, we measured the distances from thousands of HSCs to various landmarks in the bone marrow. We …
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Concerning the Innervation of the Upper Dentition in Man
… 1) the pathway of the superior alveolar nerves and their relation to the maxillary molar tooth buds in the fetal and neonatal specimens and in the child, and 2) whether nerve fibers entered any microscopically-observed tooth buds.</p>
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Morphological and Physiological Examination of a Demyelinating and Remyelinating Lesion
… sclerosis causes demyelination of central nerve fibers, and it is this pathology which results in most of the symptoms of the disease. The repair of the fibers by remyelination has been advanced as a potential symptomatic therapy, but at present the conduction properties of remyelinated …
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Phase anomalies and plateaus in auditory nerve fiber responses to high-frequency tones
… have not been found in responses of auditory-nerve fibers (ANF) from the base of the cochlea, primarily because these ANFs do not have synchronized responses to high-frequency tones. We sought counterparts to the BM responses in auditory nerve fibers (ANF) by using a new method that extracts …
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Gross and Microscopic Observations on the Lingual Structure of the West Indian Manatee (Trichechus manatus latirostris)
… epidermis. Blood vessels, lymph channels, and nerve fibers were freely distributed throughout the intermuscular stroma. Nerve fibers reacted positively with neuron specific enolase antibody throughout the lingual structure, including nerve bundles, muscle bundles, glands, and taste buds. …
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The Effects of Vasoactive Intestinal Peptide on Adrenal Steroid Hormone Secretion
… intestinal peptide (VIP)-immunoreactive nerve fibers have been demonstrated in the rat adrenal cortex in close association with zona glomerulosa cells (Holzwarth, 1984). We have studied the effects of VIP on steroid hormone secretion from the outer zones of the normal rat adrenal cortex. …
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System identification and modeling of primary electrosensory afferent response dynamics in the weakly electric fish Apteronotus leptorhynchus
… trains of action potentials in primary afferent nerve fibers. Using amplitude modulations (AMs) of the electric organ discharge (EOD), we systematically studied the stimulus coding properties of probability coding (P-type) electrosensory afferents in the weakly electric fish Apteronotus …
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Χορήγηση φαινυτοΐνης για την προφύλαξη του εγκεφάλου από υποξία
… of the intercellular space between the nerve fibers and cytoplasmic rarefraction of the extensions of the glial cells. In phenytoin groups it was observed in a clearly lesser degree, dilatation of the rough endoplasmic reticulum cisternae and very seldomly light edema between the nerve …
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A Fiber Count and Caliber Spectral Study of the Cat Ulnar Nerve and Some of Its Branches
… sheath, others with the latter covering only. Nerve fibers possessing both coverings are spoken of as myelinated. Fibers of the peripheral nervous system surrounded by only the neurolemma sheath are called unmyelinated. It has been reported by Duncan (’34), after observations of the dorsal and …
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Speech filtering for improving intelligibility in noisy transients
… to regain some hearing by stimulating auditory nerve fibers with implanted electrodes, in response to sound picked up by an external microphone. The signal processing chain from microphone input to stimulation output is an important factor in the overall speech intelligibility of the implant …
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Comparative evolution of mipafox-induced delayed neuropathy in the rat and hen
… delayed degeneration of the longest and largest nerve fibers, including those of the ascending and descending tracts of the spinal cord, a condition termed organophosphorus ester-induced delayed neuropathy (OPIDN). Recorded incidents of such an effect in humans have led to research regarding this …
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Dynamical mechanisms of neural firing irregularity and modulation sensitivity with applications to cochlear implants
… patterns of electrically stimulated auditory-nerve fibers depends upon the stimulation rate. Whereas fibers fire regularly at low stimulation rates, the same fibers fire irregularly at high rates. The irregularity observed at high stimulation rates has been attributed to noise caused by the …
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