AQP5
2007). "Stimulation of aquaporin-5 and transepithelial water permeability in human airway epithelium by hyperosmotic stress". ...
Aquaporin 2
"Vasopressin increases water permeability of kidney collecting duct by inducing translocation of aquaporin-CD water channels to ...
Occludin
The extracellular loops are thought to be involved in the regulation of paracellualr permeability and the second extracellular ... and increases paracellular permeability in human vascular endothelial cells". J. Cell. Physiol. 181 (2): 319-329. doi:10.1002/( ...
Permeability
... , permeable, and semipermeable may refer to: Permeability (electromagnetism), the degree of magnetization of a ... permeability of free space or magnetic constant, a physical constant, the value of magnetic permeability in a classical vacuum ... of the venting characteristics of a rammed foundry sand Hydraulic conductivity the permeability of soil for water Permeability ... a membrane which will allow certain molecules or ions to pass through it by diffusion Vascular permeability, the movement of ...
Vacuum permeability
The term "vacuum permeability" (and variations thereof, such as "permeability of free space") remains very widespread. The name ... The physical constant μ0, (pronounced "mu naught"), commonly called the vacuum permeability, permeability of free space, ... which is the value of magnetic permeability in a classical vacuum. Vacuum permeability is derived from production of a magnetic ... The magnetic permeability of a realizable vacuum (such as outer space, or ultra-high vacuum), which is measurable at least in ...
Oxygen permeability
"Oxygen permeability". lenses-contact.co.uk. Oxygen Permeability of Contact Lenses Materials Dk values (See page 4). ... Oxygen permeability (OP) is a parameter of a contact lens that expresses the ability of the lens to let oxygen reach the eye by ... The earliest models of soft contact lenses, based on hydrogel material, had a level of oxygen permeability of around 6-8 Dk/t. ... These values are more that twice the values of oxygen permeability for hydrogel materials. D being diffusivity (cm2/sec)--a ...
Relative permeability
... is the permeability of the porous medium in single-phase flow, i.e., the absolute permeability. Relative permeability must be ... It is the ratio of the effective permeability of that phase to the absolute permeability. It can be viewed as an adaptation of ... Thus the sum of relative permeabilities over all phases is less than 1. However, apparent relative permeabilities larger than 1 ... the effective permeability of phase i {\displaystyle i} ), as observed through the equation above. Relative permeability, κ r i ...
Intestinal permeability
Selective permeability is mediated via two major routes: Transepithelial or transcellular permeability. This consists of ... Paracellular permeability. It depends on transport through the spaces that exist between epithelial cells. It is regulated by ... Intestinal permeability is a term describing the control of material passing from inside the gastrointestinal tract through the ... Increased intestinal permeability is a factor in several diseases, such as Crohn's disease, celiac disease, type 1 diabetes, ...
Permeability (electromagnetism)
Permeability is the inductance per unit length. In SI units, permeability is measured in henries per metre (H·m−1 = J/(A2·m) = ... Its relation to permeability is B = μ H {\displaystyle \mathbf {B} =\mu \mathbf {H} } where the permeability, µ, is a scalar if ... Relative permeability, denoted by the symbol μ r {\displaystyle \mu _{\mathrm {r} }} , is the ratio of the permeability of a ... In a nonlinear medium, the permeability can depend on the strength of the magnetic field. Permeability as a function of ...
Permeability (nautical)
Permeability of a space in a ship is the percentage of empty volume in that space. Permeability is used in ship survivability ... Alternately, the permeability may be a coefficient from 0 to 1. The permeability of a space is the percentage of volume of the ... In this case, the permeability of a space is a percentage from 0 to 100. ...
Vascular permeability
... , often in the form of capillary permeability or microvascular permeability, characterizes the capacity of ... An example of increased vascular permeability is in the initial lesion of periodontal disease, in which the gingival plexus ... Q J Exp Physiol Cms 59, 283-309 (1974). Bates, D. O. & Harper, S. J. Regulation of vascular permeability by vascular ... There are several techniques to measure vascular permeability to certain molecules. For instance, the cannulation of a single ...
Controlled permeability formwork
Barfoot, J. Controlled Permeability Formwork. Concrete, March/April, 1991, pp. 12-13 Basheer, P.A.M. and Rankin, G.I.B. In-situ ... Wilson, D. Controlled Permeability Formwork (CPF), Concrete, March/April, 1994, pp. 20-22. Wilson, D. A review of the use of ... Sha'at, A.A, Long, A.E., Montgomery, F.R. and Basheer, P.A.M. The influence of Controlled Permeability Formwork liner on the ... Controlled Permeability Formwork, paper No.8, formwork practice in Japan. Report on an overseas Science and Technology Expert ...
Varying Permeability Model
The Varying Permeability Model, Variable Permeability Model or VPM is an algorithm that is used to calculate the decompression ... Implications of the Varying Permeability Model for Reverse Dive Profiles. In: Lang, M.A. and Lehner, C.E. (eds.). Proceedings ... Yount, D.E. (1979). "Skins of varying permeability: a stabilization mechanism for gas cavitation nuclei". J. Acoust. Soc. Am. ...
Permeability (earth sciences)
The terms intrinsic permeability and absolute permeability states that the permeability value in question is an intensive ... High permeability will allow fluids to move rapidly through rocks. Permeability is affected by the pressure in a rock. The unit ... To model permeability in anisotropic media, a permeability tensor is needed. Pressure can be applied in three directions, and ... The SI unit for permeability is m2. A practical unit for permeability is the darcy (d), or more commonly the millidarcy (md) (1 ...
Permeability (foundry sand)
... user may have to use an attachment to the permeability meter called a core permeability tube. The absolute permeability number ... permeability can be checked with use of a mould permeability attachment to permeability meter, readings such obtained are of ... from a rammed specimen placed on a permeability meter is correlated with a Permeability number. The Permeability number so ... relative permeability, and not absolute permeability. The relative permeability reading on a mould surface is only used to ...
Mitochondrial permeability transition pore
Induction of the permeability transition pore, mitochondrial membrane permeability transition (mPT or MPT), can lead to ... Mitochondrial permeability transition pore: an enigmatic gatekeeper (2012) NHS&T, Vol 1(3):47-51 Mitochondrial Permeability ... The mitochondrial permeability transition pore (mPTP or MPTP; also referred to as PTP, mTP or MTP) is a protein that is formed ... While the permeability transition is evident in mitochondria from these sources, its sensitivity to its classic modulators may ...
Bactericidal/permeability-increasing protein
... (BPI) is a 456-residue (~50kDa) protein that is part of the innate immune system. ... bactericidal permeability increasing protein at the US National Library of Medicine Medical Subject Headings (MeSH). ... Elsbach, Peter (July 1, 1998). "The bactericidal/permeability-increasing protein (BPI) in antibacterial host defense" (pdf). ... permeability-increasing protein (BPI) in human mucosal epithelia". PNAS. USA: National Academy of Sciences. 99 (6): 3902-3907. ...
Air permeability specific surface
The air permeability specific surface of a powder material is a single-parameter measurement of the fineness of the powder. The ... value of the air permeability surface area. The apparatus is maintained at a constant temperature, and dry air is used so that ...
Permeability (spatial and transport planning)
The over-provision of poorly used permeability is a crime hazard. The second reservation concerns the effects of permeability ... Melia (2012) proposed the terms "unfiltered permeability" and "filtered permeability" to distinguish between the two approaches ... As for permeability, it suggests that residential areas should be permeable enough to allow movement in all directions but no ... Permeability or connectivity describes the extent to which urban forms permit (or restrict) movement of people or vehicles in ...
Enhanced permeability and retention effect
The enhanced permeability and retention (EPR) effect is a controversial concept by which molecules of certain sizes (typically ... This phenomenon is referred to as the "enhanced permeability and retention (EPR) effect" of macromolecules and lipids in solid ... Duncan, R.; Sat Y.-N. (1998). "Tumour targeting by enhanced permeability and retention (EPR) effect". Ann. Oncol. 9 (Suppl.2): ... For instance, bradykinin, nitric oxide / peroxynitrite, prostaglandins, vascular permeability factor (also known as vascular ...
Parallel artificial membrane permeability assay
ISBN 0-471-42365-3. The measurement of in-vitro permeability using PAMPA The performance of PAMPA permeability studies ... In medicinal chemistry, parallel artificial membrane permeability assay (PAMPA) is a method which determines the permeability ... "Parallel Artificial Membrane Permeability Assay: A New Membrane for the Fast Prediction of Passive Human Skin Permeability". ... 2005). Caco-2 permeability of weakly basic drugs predicted with the Double-Sink PAMPA pKaflux method. Pharm. Sci., 24: 333-349 ...
Factors affecting permeability of soils
In permeability tests, the sample of soil used should be fully saturated to avoid errors. Permeability Darcy's Law Soil Soil ... permeability]] of coarse grained soil is very large as compared to that of fine grained soil. The permeability of coarse sand ... The coefficient of permeability varies with the void ratio as e/sup>/(1+e). For a given soil, the greater the void ratio, the ... The permeability is reduced due to the presence of air which causes a blockage to the passage of water. Consequently, the ...
Geotechnical engineering
Void ratio is mathematically related to the porosity by e = n 1 − n {\displaystyle e={\frac {n}{1-n}}} Permeability A measure ... Compaction is the process by which the density of soil is increased and permeability of soil is decreased. Fill placement work ... "Permeability". NPTEL. Retrieved 24 August 2015. "Shear strength". NPTEL. Retrieved 24 August 2015. Coduto, Donald; et al. (2011 ... Usually, the properties modified are shear strength, stiffness and permeability. Ground improvement has developed into a ...
Lime (material)
... vapour permeability etc." Poor lime is also known as lean or meager lime. Poor lime sets and cures very slowly and has weak ... vapor permeability; flexibility; and resistance to sulfates. These qualities are affected by many factors during each step of ...
List of The Big Bang Theory characters
"The Financial Permeability". The Big Bang Theory. Season 2. Episode 14. February 2, 2009. "The Panty Piñata Polarization". The ...