Results 161 to 170 of about 45,602 (183)

Short-term potentiation of ventilation after different levels of hypoxia

Journal of Applied Physiology, 1999
Short-term potentiation of ventilation (VSTP) may be observed in healthy subjects on sudden termination of an hypoxic stimulus. We hypothesized that the level of hypoxia preceding normoxia would modify the duration and magnitude of the ensuing ventilatory decay.
A A, Menendez, T J, Nuckton, J E, Torres, D, Gozal   +3 more
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Short term changes of event related potentials during concept learning

Biological Psychology, 1985
In a concept learning task, the time course of P3 amplitudes following the stimuli to be categorized was investigated. That time course did not coincide with the learning curve: it was not until the 4th to 6th trial after learning that P3 amplitudes grew larger. Some implications of this effect are discussed.
R, Verleger, T, Gasser, J, Möcks
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Cholinergic mechanisms and short-term potentiation.

Ciba Foundation symposium, 1979
Acutely prepared rabbits were used to study, electrophysiologically, tetanic and post-tetanic potentiation of the pathway from the medial septal region to hippocampal field CA1. It was found that tetanic potentiation, evoked by short stimulus trains, was maximal at 6--8 Hz.
J F, Defrance, J C, Stanley, J E, Marchand, R B, Chronister   +3 more
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Short-term potentiation at the parallel fiber–Purkinje cell synapse

Neuroscience Research, 2006
Changes in synaptic efficacy at the parallel fiber (PF)-Purkinje cell (PC) synapse are postulated to be a cellular basis for motor learning. Although long-term efficacy changes lasting more than an hour at this synapse, i.e., long-term potentiation and depression, have been extensively studied, relatively short lasting synaptic efficacy changes, namely
Jun-Ichi, Goto, Takafumi, Inoue, Akinori, Kuruma, Katsuhiko, Mikoshiba   +3 more
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Postsynaptic action potentials do not alter short-term potentiation in the dentate gyrus

Brain Research, 1997
The dendrites of neocortical neurons have been shown to support active action potentials which back-propagate from the soma after an output spike has been initiated. This observation has led to speculation that dendritic action potentials may participate in various forms of synaptic plasticity.
B, Foster, T L, Richardson
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Short term variations in atmospheric electric potential gradient

Journal of Atmospheric and Terrestrial Physics, 1969
Abstract Short term variations of electrical potential gradient (sometimes called ‘agitation’) have been studied during fair and disturbed weather and on days with and without wind. The magnitude and ‘frequency’ of the ‘agitation’ are found to depend on the mean value of the potential gradient.
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Maxillomandibular expansion: Short-term relapse potential and long-term stability

American Journal of Orthodontics and Dentofacial Orthopedics, 2006
Tooth size-arch length discrepancies (TSALD) are the most common form of malocclusion treated by orthodontists. The initial report of the Third National Health and Nutrition Examination Survey showed that approximately 30% of people in the United States between 8 and 50 years of age have clinically relevant amounts of mandibular incisor crowding.
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Hoxa6 potentiates short-term hemopoietic cell proliferation and extended self-renewal

Experimental Hematology, 2009
Hemopoietic progenitor cells express clustered homeobox (Hox) genes in a pattern characteristic of their lineage and stage of differentiation. In general, HOX expression tends to be higher in more primitive and lower in lineage-committed cells. These trends have led to the hypothesis that self-renewal of hemopoietic stem/progenitor cells is HOX ...
Dickson, Glenda, Kwasniewska, A., Mills, Ken, Lappin, Terence, Thompson, Alexander   +4 more
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An event-related brain potential correlate of visual short-term memory

NeuroReport, 1999
Event-related potentials (ERPs) were recorded as 12 subjects performed a delayed matching to sample task. We presented two bilateral abstract shapes and cued spatially which had to be memorized for a subsequent matching task: left, right or both. During memorization a posterior slow negative ERP wave developed over the hemisphere contralateral to the ...
Klaver, P., Talsma, D., Wijers, A.A., Heinze, H.J., Mulder, G.   +4 more
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Short Term Mobilisation of Biomass Potential in Critical Situations

2015
Methodology for modelling of biomass potential mobilisation is using detailed spatial data and GIS tools. GIS model serves for identification of standard and additional biomass potentials, which can be used in critical situations. Standard biomass potential reflects availability of biomass from agriculture and forest land e.g.
Vávrová, K., Weger, J., Knápek, J., KrálÍK, T.   +3 more
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