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Permeability information


Permeability, permeable, and semipermeable may refer to:

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Permeability

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Drug permeability Semipermeable membrane, a membrane which will allow certain molecules or ions to pass through it by diffusion Vascular permeability, the...

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Vacuum permeability

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magnetic permeability (variously vacuum permeability, permeability of free space, permeability of vacuum, magnetic constant) is the magnetic permeability in...

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Semipermeable membrane

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either side, as well as the permeability of the membrane to each solute. Depending on the membrane and the solute, permeability may depend on solute size...

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Vascular permeability

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Vascular permeability, often in the form of capillary permeability or microvascular permeability, characterizes the capacity of a blood vessel wall to...

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Relative permeability

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relative permeability of a phase is a dimensionless measure of the effective permeability of that phase. It is the ratio of the effective permeability of that...

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Drug permeability

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its bioavailability. When drug permeability is empirically measured in vitro, it is generally called apparent permeability (Papp) as its absolute value...

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Permeability of soils

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Laboratory experiments: Constant Head Permeability Test, Low-level permeability test, Horizontal permeability test. Field experiments: Free aquifer,...

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Oxygen permeability

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of gas permeability of membranes and contact lenses Oxygen transmission rate "Oxygen permeability". lenses-contact.co.uk. Oxygen Permeability of Contact...

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Intestinal permeability

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intestinal lumen. Selective permeability is mediated via two major routes: Transepithelial or transcellular permeability. This consists of specific transport...

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Permeable paving

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cellular grid reduces compaction of the soil to maintain permeability, while the roots improve permeability due to their root channels. In new suburban growth...

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Mitochondrial permeability transition pore

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in the permeability of the mitochondrial membranes to molecules of less than 1500 daltons in molecular weight. Induction of the permeability transition...

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Hydraulic conductivity

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the permeability of soil with minimum disturbances. In laboratory methods, the degree of disturbances affect the reliability of value of permeability of...

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Permeable Press

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Permeable Press was a San Francisco-based literary publishing company founded in 1990 by Brian Charles Clark. A "micropress" operating on less than U...

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Solenoid

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permeability of the magnetic path is the same as permeability of free space, μ0. If the solenoid is immersed in a material with relative permeability...

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Biopharmaceutics Classification System

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their solubility and permeability. This system restricts the prediction using the parameters solubility and intestinal permeability. The solubility classification...

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Enhanced permeability and retention effect

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The enhanced permeability and retention (EPR) effect is a controversial concept by which molecules of certain sizes (typically liposomes, nanoparticles...

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Cell membrane

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secondary structures. It was not until later studies with osmosis and permeability that cell membranes gained more recognition. In 1895, Ernest Overton...

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Units of textile measurement

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contained to form a loop. Air permeability is a measure of the ability of air to pass through a fabric. Air permeability is defined as "the volume of air...

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Controlled permeability formwork

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Controlled Permeability Formwork. Concrete Quarterly, British Cement Association, Summer 1990, pp. 6–7. Harrison, T.A. Introducing Controlled Permeability Formwork...

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Fault zone hydrogeology

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can vary the permeability of a fault zone. Some processes affect the permeability temporarily. These processes enhance the permeability for a certain...

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Human skin

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the only way to increase its permeability. Recently, simpler and more effective methods for increasing skin permeability have been developed. Ultraviolet...

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Cell theory

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Troshin published a book, The Problems of Cell Permeability, in Russian, in which he showed that permeability was of secondary importance in determining the...

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