منابع مشابه
Receptor recharge time drastically reduces the number of captured particles
Many diverse biological systems are described by randomly moving particles that can be captured by traps in their environment. Examples include neurotransmitters diffusing in the synaptic cleft before binding to receptors and prey roaming an environment before capture by predators. In most cases, the traps cannot capture particles continuously. Rather, each trap must wait a transitory "recharge...
متن کاملOne-dimensional springflow model for time variant recharge
The linear mathematical model for springflow suggested by Bear (1979) can simulate springflow for an initial instantaneous recharge. A springflow model has been developed, using the Bear model and Duhamel's approach, which can simulate springflow for time variant recharge. The suggested model can also be used to compute the time variant recharge to the springflow domain from a given springflow ...
متن کاملDemonstrating trend reversal of groundwater quality in relation to time of recharge determined by 3H/3He.
Recent EU legislation is directed to reverse the upward trends in the concentrations of agricultural pollutants in groundwater. However, uncertainty of the groundwater travel time towards the screens of the groundwater quality monitoring networks complicates the demonstration of trend reversal. We investigated whether trend reversal can be demonstrated by relating concentrations of pollutants i...
متن کاملPrediction, time variance, and classification of hydraulic response to recharge in two karst aquifers
Many karst aquifers are rapidly filled and depleted and therefore are likely to be susceptible to changes in shortterm climate variability. Here we explore methods that could be applied to model site-specific hydraulic responses, with the intent of simulating these responses to different climate scenarios from high-resolution climate models. We compare hydraulic responses (spring flow, groundwa...
متن کاملRecharge With Pregnenolone
An Essential Hormone Testosterone, estrogen, cortisol, DHEA, and pregnenolone are members of a family of natural hormones that are essential for human survival. All of these hormones contain four carbon-ring structures attached to each other, and appear very similar.1Small differences in structure, however, produce dramatic changes in function. Testosterone, the “male” hormone, is only slightly...
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ژورنال
عنوان ژورنال: Neurology - Neuroimmunology Neuroinflammation
سال: 2020
ISSN: 2332-7812
DOI: 10.1212/nxi.0000000000000779