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"permeation" Definitions
  1. permeation (+ adv./prep.) the process of a liquid, gas, etc. spreading to every part of an object or a place
  2. the fact of affecting every part of something

214 Sentences With "permeation"

How to use permeation in a sentence? Find typical usage patterns (collocations)/phrases/context for "permeation" and check conjugation/comparative form for "permeation". Mastering all the usages of "permeation" from sentence examples published by news publications.

Screens are everywhere, and are already a huge permeation of our everyday lives.
Still, conlangs had a long way to go before reaching their current level of permeation.
Despite this (slightly goofy) permeation, the rise of semi-obsessive data monitoring wasn't a given.
If that's the case, Baby Shark still has a lot of cultural permeation to do.
Despite all of this, there is a national permeation of rhetoric that often denounces teaching as a profession.
That's not even accounting for the series' extensive cultural permeation, on a level that far transcended superficial product tie-ins.
The show's permeation into the public consciousness is so pervasive that even people who have never seen "Game of Thrones" before know what it is.
Antibiotic use in animal husbandry poses a far greater risk in the global permeation of bug killers into human and natural ecosystems, including accelerating the allergy and immune epidemic in humans.
The sport's permeation of a country of about 29 million began in the late 26s, when Spain ceded the Philippines to the United States in 28 after the Spanish-American War.
As that turn of phrase proves, the internet and the culture around it still had a ways to go for total permeation of American society, but it was certainly a turning point.
But one trend I think that is common across the globe is the rise and permeation of unreliable news sources making their way into the daily feeds of consumers around the world.
The forthcoming permeation of robots into our world of the future will cause an even more significant change in modern life and business than the Internet already has, according to a prominent roboticist.
Now researchers at the University of Manchester say they have come up with a method for controlling the permeation of graphene oxide membranes so they can act as a sieve to desalinate seawater.
But with the rise of Nazism came the permeation of repression, and by 1933, the Bauhaus School was forced to close its doors and Albers and his wife Anni fled the country for America.
Let me attest, at the outset, to the hauntingly powerful—and, now, almost twenty-five years on, probably unreplicable—cultural permeation that the songs on Alanis Morissette's third album, "Jagged Little Pill," achieved after its release, in 1995.
When I asked Levine if he sees the MA770 as being a studio speaker with as much permeation in the market among artists and studios, like the headphones that came before it, he said that was up in the air.
And while they found that permeation rates for the membranes decrease exponentially with decreasing sieve size, they also report that water transport itself is only "weakly affected" — meaning the filtered water flows through the membrane relatively quickly; an important factor if the aim is to develop affordable desalination technology.
Although their graphicness ranges from the gratuitous to the insinuated, this permeation of sexual assault is too often used as a plot device that gives female characters something to react to—a devastating raison d'etre—or, worse, a throwaway narrative to illustrate something about a male anti-hero at the story's center.
While helium has documented permeation constants (thus a calculable permeation rate) through glasses, ceramics, and synthetic materials, inert gases such as helium will not permeate most bulk metals.
DDAIP is a permeation enhancer that temporarily changes the permeation dynamics of the lipid bilayer and opens up the tight junctions between skin cells so active drug molecules can be rapidly absorbed through the skin into systemic circulation. It can also improve the solubility of compounds resulting in enhanced drug permeation.
SLC30A1 modulates zinc permeation through the L-type calcium channel. SLC30A1 downregulates not only Zn++ influx, but also Ca++ influx, thereby protecting cells from the effects of excessive cation permeation.
The further separation is then accomplished with a membrane operated either in vapor permeation or pervaporation mode. Vapor permeation uses a vapor membrane feed and pervaporation uses a liquid membrane feed.
NexACT® is a proprietary water-soluble small molecule permeation enhancer which temporarily changes the permeation dynamics of the lipid bi-layer and transiently loosens the tight junctions between the cells so that active drug molecules can be rapidly absorbed into systemic circulation. The NexACT technology is used in both Vitaros and RayVA. It can also improve the solubility of compounds resulting in enhanced drug permeation.
Rapid wetting or permeation may also leave behind undissolved gases which could cause electrode degradation.
Alternative methods utilize specific gas environments with strong magnetic and electric fields. Assessment of the achieved barrier performances achieved represents an additional challenge. The classical coated membranes gas permeation rate method continues to be the most reliable option to determine Hydrogen Permeation Barrier (HPB) efficiency.
Barrer developed the modern Barrer measurement technique, and first used scientific methods for measuring permeation rates.
The artist challenges the notions of a centred stable subjectivity, suggesting a constant permeation of self.
Helmut, D. Gel Chromatography, Gel Filtration, Gel Permeation, Molecular Sieves: A Laboratory Handbook; Springer-Verlag, 1969.
Aside from using NMR to determine a polyanhydride’s molecular weight, gel permeation chromatography (GPC), and viscosity measurements may also be used.
Instead of allowing the permeation, blocking is also necessary. Gas permeation barriers are important for almost all applications ranging from food, pharmaceutical, medical, inorganic and organic electronic devices, etc. packaging. It extends the life of the product and allows keeping the total thickness of devices small. Being atomically thin, defectless graphene is impermeable to all gases.
The term gel permeation chromatography can be traced back to J.C. Moore of the Dow Chemical Company who investigated the technique in 1964 and the proprietary column technology was licensed to Waters Corporation, who subsequently commercialized this technology in 1964.Moore, J.C. Gel permeation chromatography. I. A new method for molecular weight distribution of high polymers. J. Polym. Sci.
The process of permeation involves the diffusion of molecules, called the permeant, through a membrane or interface. Permeation works through diffusion; the permeant will move from high concentration to low concentration across the interface. A material can be semipermeable, with the presence of a semipermeable membrane. Only molecules or ions with certain properties will be able to diffuse across such a membrane.
The TRPV6 protein is constitutive with a single-channel conductance of 42-58 ps. At low Ca2+ concentrations, a single Ca2+ ion binds in the selectivity filter formed by D541 and permits Na+ permeation. At high Ca2+ concentration, Ca2+ permeation occurs by a knock-off mechanism that involves the formation of short-lived conformations involving binding of three Ca2+ ions to residue D541.
RayVA contains Prostaglandin E1 as the active ingredient and Apricus' permeation enhancer (NexACT) which facilitates the delivery of the drug into the blood stream. Femprox® is a topical cream for the treatment of female sexual interest / arousal disorder. It contains Prostaglandin E1 as the active ingredient and a permeation enhancer (NexACT) which facilitates the delivery of the drug into the blood stream.
Since membranes are sensitive to water and other impurities in biogas, gas permeation/membrane systems require efficient pre- treatment (especially H2S and water removal).
In physics and engineering, permeation (also called imbuing) is the penetration of a permeate (such as a liquid, gas, or vapor) through a solid. It is directly related to the concentration gradient of the permeate, a material's intrinsic permeability, and the materials' mass diffusivity. Permeation is modeled by equations such as Fick's laws of diffusion, and can be measured using tools such as a minipermeameter.
The result was a bulging inwards of the bladder. His notes about this experiment are the first scientific mention of permeation (later it would be called semipermeability).
Hence, their permeation enhancing effect can be maintained for a comparatively longer period of time and systemic toxic side effects of the auxiliary agent can be excluded.
This is a very important mechanism in biology where fluids inside a blood vessel need to be regulated and controlled. Permeation can occur through most materials including metals, ceramics and polymers. However, the permeability of metals is much lower than that of ceramics and polymers due to their crystal structure and porosity. Permeation is something that must be considered carefully in many polymer applications, due to their high permeability.
However, mutation of Asp112 in human Hv1 results in anion permeation, suggesting that obligatory protonation of Asp produces proton selectivity. Quantum mechanical calculations show that the Asp-Arg interaction can produce proton selective permeation. The HVCN1 protein has been shown to exist as a dimer with two functioning pores. Like other VSD channels, HVCN1 channels conduct ions about 1000-fold slower than channels formed by tetrameric S5-S6 central pores.
Cross-flow configurations are preferred in continuous operations as solids are continuously flushed from the membrane surface resulting in a thinner cake layer and lower resistance to permeation.
Dimethylmercury is extremely toxic and dangerous to handle. Absorption of doses as low as 0.1 mL can result in severe mercury poisoning. The risks are enhanced because of the high vapor pressure of the liquid. Permeation tests showed that several types of disposable latex or polyvinyl chloride gloves (typically, about 0.1 mm thick), commonly used in most laboratories and clinical settings, had high and maximal rates of permeation by dimethylmercury within 15 seconds.
Thiomers are able to reversibly open tight junctions. The responsible mechanism seems to be based on the inhibition of protein tyrosine phosphatase being involved in the closing process of tight junctions. Due to thiolation the permeation enhancing effect of polymers such as polyacrylic acid or chitosan can be up to 10-fold ımproved. In comparison to most low molecular weight permeation enhancers, thiolated polymers offer the advantage of not being absorbed from the mucosal membrane.
In particular, ultra-thin moisture permeation barrier layers based on graphene are shown to be important for organic-FETs and OLEDs. Graphene barrier applications in biological sciences are under study.
He pioneered "permeation mediated catalysis" and developed phosphoric acid fuel cells. Nicknamed the "father of catalytic combustion",Worthy, Sharon. Bio-Medicine: Connecticut chemist receives award for cleaner air technology. 23 June 2003.
"Brautigan's Wake." Vanity Fair, May 1985: 62–68, 112–116. Brautigan's writings are characterized by a remarkable and humorous imagination. The permeation of inventive metaphors lent even his prose works the feeling of poetry.
One notable exception is to measure chain branching as a function of molecular size in polyethylene using gel permeation chromatography, which is possible using chlorinated solvents that have no absorption in the area in question.
The pronounced continuity, permeation, intertwining of vibrant graphic, filled and empty surfaces, i.e. black and white, optically contributes to the kinetics of pictorial elements. He had independent and group shows in the country and abroad.
Sodium acetate is used to mitigate water damage to concrete by acting as a concrete sealant, while also being environmentally benign and cheaper than the commonly used epoxy alternative for sealing concrete against water permeation.
37-56, CRC Press, Taylor & Francis Group, Boca Raton-London-New York.Touitou, E., Godin, B. (2005) Enhanced skin permeation using ethosomes. In: Smith and Maibach (Eds) Percutaneous Penetration Enhancers, Second Edition, pp. 95-108 CRC Press, New York.
Ethosomes are mainly composed of multiple, concentric layers of flexible phospholipid bylayers, with a relative high concentration of ethanol (20-45%), glycols and water.Touitou E. Compositions for applying active substances to or through the skin; Patent number: 5540934 Granted 1996Touitou E. Composition for applying active substances to or through the skin; Patent number 5716638 Granted 1998 Their overall structure has been confirmed by 31P-NMR, EM and DSC. They have high penetration of the horny layer of the skin, which enhances the permeation of encapsulated drugs. The mechanism of permeation enhancement is attributed to the overall properties of the system.
Similar to other ion channels, MscLs are organized as symmetric oligomers with the permeation pathway formed by the packing of subunits around the axis of rotational symmetry. Unlike MscS, which is heptameric, MscL is likely pentameric; although the Sa-MscL appears to be a tetramer in a crystal structure, this may be an artifact. MscL contains two transmembrane helices that are packed in an up-down/nearest neighbor topology. The permeation pathway of the MscL is approximately funnel shaped, with larger opening facing the periplasmic surface of the membrane and the narrowest point near the cytoplasm.
It was also reported that the membranes are not permeable by "substances of lower molecular weight". Permeation of water through the membrane was attributed to swelling of graphite oxide structure which enables water penetration path between individual graphene oxide layers. The interlayer distance of dried graphite oxide was reported as 6.35 Å, but in liquid water it increased to 11.6 Å. Remarkably, the paper also cited the inter-layer distance in diluted NaOH as infinity thus reporting dispersion of graphite oxide on single-layered graphene oxide sheets in solution. The study also reported permeation rate of membranes for water 0.1 mg per minute per square cm.
Ranges for grape seed extract are from 25 PVU for low grade material to over 300 for premium grape seed extracts.Porter Assay on www.omegabiotech.com Gel permeation chromatography (GPC) analysis allows to separate monomers from larger PCO molecules. Monomers of procyanidins can be characterized by HPLC analysis.
The general structure of these copolymers in solution is not yet well established. The composition can be determined by gel permeation chromatography(GPC) and nuclear magnetic resonance (NMR). Generally the composition has a narrow polydispersity index (PDI) and the molecular weight increases with time as the polymer forms.
She has developed her own recognizable style. In her paintings, reality is difficult to separate from fiction. Hyperrealistic literality of details is not only a stylistic effort, but rather a manifestation of a certain perception of reality. Domanska’s paintings relate to the reality of uncontrolled permeation of imitation and original.
Microorganisms will adhere to the membrane surface forming a gel layer – known as biofilm. The film increases the resistance to flow, acting as an additional barrier to permeation. In spiral-wound modules, blockages formed by biofilm can lead to uneven flow distribution and thus increase the effects of concentration polarization.
Major findings include discovery of the block of NMDA receptors by extracellular Mg and their high Ca permeability; analysis of the permeation and block of Ca permeable AMPA and kainate receptors by cytoplasmic polyamines; and structural studies on ligand binding, allosteric modulation, and gating using X-ray diffraction and cryoelectron microscopy.
He studied physiology at Chelsea Polytechnic (as was) and chemistry at Birkbeck College at wartime evening classes. When the war ended, he took the BSc Physiology course at University College London. His initial research was on acetylcholine actions in nerve and muscle. His work developed to address the permeation of potassium in muscle.
In size-exclusion chromatography, such as gel permeation chromatography, the intrinsic viscosity of a polymer is directly related to the elution volume of the polymer. Therefore, by running several monodisperse samples of polymer in a gel permeation chromatograph (GPC), the values of K and a can be determined graphically using a line of best fit. Then the molecular weight and intrinsic viscosity relationship is defined. Also, the molecular weights of two different polymers in a particular solvent can be related using the Mark–Houwink equation when the polymer-solvent systems have the same intrinsic viscosity: :K_1M_1^{a_1}=K_2M_2^{a_2} Knowing the Mark–Houwink parameters and the molecular weight of one of the polymers allows one to find the molecular weight of the other polymer using a GPC.
Lodzki, M., Godin, B., Rakou, L., Mechoulam, R., Gallily, R., Touitou, E. (2003) Cannabidiol Transdermal Delivery and Anti-Inflammatory Effect in a Murine Model. J. Control. Release, 93: 379-389Godin, B., Touitou, E. (2004) Mechanism of Bacitracin Permeation Enhancement through the Skin and Cellular Membranes from an Ethosomal Carrier. J. Control. Release, 94:365-79.
It desensitizes to a small conductance in continuous light. Recovery from desensitization is accelerated by extracellular H+ and a negative membrane potential. It may be a photoreceptor for dark adapted cells. A transient increase in hydration of transmembrane α-helices with a t(1/2) = 60 μs tallies with the onset of cation permeation.
Summarizing the unresolved conflict between the personal views of Rosenberg and the pragmatism of the Nazi elite: > The ruthless pursuit of Nazi aims turned out to mean not, as Rosenberg had > hoped, the permeation of German life with the new ideology; it meant > concentration of the combined resources of party and state on total war.
To date, PAMPA models have been developed that exhibit a high degree of correlation with permeation across a variety of barriers, including Caco-2 cultures,Bermejo, M. et al. (2004). PAMPA – a drug absorption in vitro model 7. Comparing rat in situ, Caco-2, and PAMPA permeability of fluoroquinolones. Pharm. Sci., 21: 429-441.
Unlike hollow fiber membranes made from polysulfone, the aging process of the fiber is relatively quick so that air separation performance remains stable throughout the life of the membrane. PPO makes the air separation performance suitable for low temperature (35-70 °F; 2-21 °C) applications where polysulfone membranes require heated air to increase permeation.
The ball domain is electrostatically attracted to the inner channel domain. When the ion channel is activated, the inner channel domain is exposed, and within milliseconds the chain will fold and the ball will enter the channel, occluding ion permeation. The channel returns to its closed state, blocking the channel domain, and the ball leaves the pore.
Akhtar N, Varma A, Pathak K. (2016) Ethosomes as Vesicles for Effective Transdermal Delivery: From Bench to Clinical Implementation. Curr Clin Pharmacol., 11: 168-90.Paolino D, Lucania G, Mardente D, Alhaique F, Fresta M. (2005) Ethosomes for skin delivery of ammonium glycyrrhizinate: in vitro percutaneous permeation through human skin and in vivo anti-inflammatory activity on human volunteers.
Many products degrade with exposure to the atmosphere: foods, pharmaceuticals, chemicals, etc. The ability of a package to control the permeation and penetration of gasses is vital for many types of products. Tests are often conducted on the packaging materials but also on the completed packages, sometimes after being subjected to flexing, handling, vibration, or temperature.
In molecular biology, the protein domain Zeta (ζ) toxin refers to a protein domain found in prokaryotes, which acts as a UDP-N-acetylglucosamine kinase. Its function is to inhibit cell wall biosynthesis and it may act as a bactericide in nature. It is also thought that Zeta toxin induces reversible protective dormancy and permeation to propidium iodide (PI).
Since then, due to the permeation of moisture into the mansion, most of the building's contents including all of the paintings, carpets, artwork and objects d'art have been moved to warehouses or have been loaned to museums. The basic furnishing have been wrapped in plastic and stacked in their respective rooms. No renovation/restoration work has begun.
The vault is painted white. The advertising frames are in white ceramic and the name of the station is written in Parisine font on enameled plates. The seats are Akiko style, green for line 7 and orange for line 8. As part of the treatment for major permeation, the lighting canopies for line 7 is temporarily removed.
Roman amphorae were wheel-thrown terracotta containers. During the production process the body was made first and then left to dry partially. Then coils of clay were added to form the neck, the rim, and the handles. Once the amphora was complete, the maker then treated the interior with resin that would prevent permeation of stored liquids.
Gel permeation chromatography (GPC) is a type of size exclusion chromatography (SEC), that separates analytes on the basis of size, typically in organic solvents. The technique is often used for the analysis of polymers. As a technique, SEC was first developed in 1955 by Lathe and Ruthven.Lathe, G.H.; Ruthven, C.R.J. The Separation of Substance and '1956, 62, 665–674.
Both metallised PET and PP have replaced foil laminates for products such as snack foods, coffee and candy, which do not require the superior barrier of aluminium foil. Metallised nylon and polyethylene are used in the meat export market. The controlled permeation extends shelf life. Metallised films are used as a susceptor for cooking in microwave ovens.
Seams, creases, access points, and heat seals are critical to end-use performance. For example, the glass of a bottle may have an effective total barrier, but the screw cap closure and the closure liner might not. Performance verification and validation of complete containers, structures, or irregular objects is often recommended. For the special case of OLEDs, where the levels of allowed permeation are in the 10−6 g/m²/day level , "Institute of Materials Research and Engineering (IMRE) MEDIA RELEASE, 29 April 2008, Singapore research produces world’s best protection from moisture and oxygen" , , Water Vapour Transmission Rate Measurements, 1 June 2011 the methods preferred exploit an oxidation of a metal upon the exposure to water , G. Nisato, Permeation Methods, Deliverable D5b FLEXled-phr-0209-009/Public Report, September 2002, .
This effect may be due to two reasons. First, zinc oxide nanoparticles can interfere with NorA protein, which is developed for conferring resistance in bacteria and has pumping activity that mediate the effluxing of hydrophilic fluoroquinolones from a cell. Second, zinc oxide nanoparticles can interfere with Omf protein, which is responsible for the permeation of quinolone antibiotics into the cell.
Hayek et al. (2010) used settlement development scenarios for Switzerland, to find the causes of urban sprawl in order to reduce undesired future settlement developments. The results show that overall urban permeation and dispersion of settlement areas is likely to increase, in varying degrees, in all scenarios by 2030.Hayek, U. W., Jaeger, J. A., Schwick, C., Jarne, A., & Schuler, M. (2011).
"On the Beautiful Blue Danube" from the same collection appeared in 2014 Issue of Bat City Review. Wittenberg Revisited is Georgi Tenev and Ivan Dobchev’s "intelligent Stoppardian appropriation of Hamlet" premiered in 2011. The play received the National Literature Prize „Elias Canetti“ 2013. This "local spin-off" by Georgi Tenev and Ivan Dobchev "testify to Shakespeare’s permeation in Bulgarian culture".
Passive targeting uses the enhanced permeation and retention of tumor cells for the delivery of quantum dot probes. Fast-growing tumor cells typically have more permeable membranes than healthy cells, allowing the leakage of small nanoparticles into the cell body. Moreover, tumor cells lack an effective lymphatic drainage system, which leads to subsequent nanoparticle-accumulation. Quantum dot probes exhibit in vivo toxicity.
As a result of concentration polarization at the membrane surface, increased ion concentrations may exceed solubility thresholds and precipitate on the membrane surface. These inorganic salt deposits can block pores causing flux decline, membrane degradation and loss of production. The formation of scale is highly dependent on factors affecting both solubility and concentration polarization including pH, temperature, flow velocity and permeation rate.
Marxists Internet Archive. Retrieved 24 May 2010. At times and attracted to and at times repelled by the Australian Labor Party throughout his life, he supported permeation tactics following the failure of Socialists against the Labor Party candidates. Ross edited New Zealand's Maoriland Worker in Wellington from 1911 before returning to edit the socialist press in Melbourne, Victoria in April 1913.
Thanks to the revival of interest in Palladio and Inigo Jones, soon Neo-Palladian villas dotted the valley of the River Thames and English countryside. Marble Hill House in England was conceived originally as a "villa" in the 18th-century sense.Sir John Summerson, Architecture in Britain, 1530 to 1830: ch. 22 "Palladian permeation: the villa" provides a standard overview of the building type.
Rapetti-Mauss R, Picard V, Guitton C, Ghazal K, Proulle V, Badens C, Soriani O, Garçon L, Guizouarn H. Red blood cell Gardos channel (KCNN4): the essential determinant of erythrocyte dehydration in Hereditary Xerocytosis. Haematologica. 2017 Jun 15:haematol-2017.Gnanasambandam R, Gottlieb PA, Sachs F. The Kinetics and the Permeation Properties of Piezo Channels. Curr Top Membr. 2017;79:275-307.
Membrane separation processes have a very important role in the separation industry. Nevertheless, they were not considered technically important until the mid-1970s. Membrane separation processes differ based on separation mechanisms and size of the separated particles. The widely used membrane processes include microfiltration, ultrafiltration, nanofiltration, reverse osmosis, electrolysis, dialysis, electrodialysis, gas separation, vapor permeation, pervaporation, membrane distillation, and membrane contactors.
They are used as catalysts (for oxidation), permeation membranes, sensors, and electrodes in batteries and fuel cells, because they allow for rapidly transducing chemical signals and permeating chemical components. Strontium titanate (SrTiO3), titanium dioxide (TiO2), (La,Ba,Sr)(Mn,Fe,Co)O3−d, La2CuO4+d, cerium(IV) oxide (CeO2), lithium iron phosphate (LiFePO4), and LiMnPO4 are examples of mixed conductors.
PHA polymers are thermoplastic, can be processed on conventional processing equipment, and are, depending on their composition, ductile and more or less elastic. They differ in their properties according to their chemical composition (homo-or copolyester, contained hydroxy fatty acids). They are UV stable, in contrast to other bioplastics from polymers such as polylactic acid, partial ca. temperatures up to , and show a low permeation of water.
Along with other Reconstructionist tenets, it dwindled as the latter consolidated into a separate group. Kaplan's views and the permeation of Higher Criticism gradually swayed most Conservative thinkers towards a non- verbal understanding of theophany, which has become dominant in the 1970s. This was en sync with the wider trend of lowering rates of Americans who accepted the Bible as the Word of God.Dorff, pp. 107-108.
The Microbiological Service Laboratory performs the bioburden and sterility testing of medical devices. ;Chemistry Research Section The Radiation Crosslinking Laboratory practices covalent bonding with one or more polymers and imparting improved mechanical and functional properties in the result of cross-linking products. Next is the Radiation Degradation Laboratory. This facility analyzes degradation products through gel permeation chromatography and separates different molecular weight fractions by tangential flow filtration.
Stokes radii are often determined experimentally by gel-permeation or gel-filtration chromatography. They are useful in characterizing biological species due to the size-dependence of processes like enzyme-substrate interaction and membrane diffusion. The Stokes radii of sediment, soil, and aerosol particles are considered in ecological measurements and models. They likewise play a role in the study of polymer and other macromolecular systems.
Changing the surface functionality of the cellulose nanoparticle can also affect the permeability of nanocellulose films. Films constituted of negatively charged cellulose nanowhiskers could effectively reduce permeation of negatively charged ions, while leaving neutral ions virtually unaffected. Positively charged ions were found to accumulate in the membrane. Multi-Parametric Surface Plasmon Resonance is one of the methods to study barrier properties of natural, modified or coated nanocellulose.
Lockheed claimed that the filter was 500 times thinner than the best filter then on the market, one thousand times stronger and requires 1% of the pressure. The product was not expected to be released until 2020. Another study showed that graphite oxide could be engineered to allow water to pass, but retain some larger ions. Narrow capillaries allow rapid permeation by mono- or bilayer water.
Morrison began writing his novel A Child of the Jago in early 1896. The novel was published in November by Henley. It described in graphic detail living conditions in the East End, including the permeation of violence into everyday life (it was a barely fictionalised account of life in the Old Nichol Street Rookery). Morrison also published The Adventures of Martin Hewitt in 1896.
This openness combined with his heavy use of paraphrase can make it hard to distinguish his own position from those of the thinkers he is depicting, for example in his presentation of Empedocles' thought in Hellas, Volume 4.Mitchell, p. 110. Grønbech did have a fundamental belief in the importance of "harmony", which he saw as the permeation of life by religion,Mitchell, pp. 35, 107.
At the moment most of these poly(alkylene succinate)s are synthesized from petrochemical precursors. Nevertheless most of the producers are evaluating or developing bio-based succinic acid for the synthesis of these polyesters. In 2016, Showa Denko announced termination of the production and sale of Bionolle, citing delay in permeation of environmental regulations on plastic shopping bags and a fall in market prices of biodegradable plastics.
This plastic is also used to produce air separation membranes for generating nitrogen. The PPO is spun into a hollow fiber membrane with a porous support layer and a very thin outer skin. The permeation of oxygen occurs from inside to out across the thin outer skin with an extremely high flux. Due to the manufacturing process, the fiber has excellent dimensional stability and strength.
Non-scrotal testosterone patches were assessed and were found to be ineffective in raising testosterone levels in men. As a result, scrotal testosterone patches were initially marketed. Subsequently, however, non-scrotal testosterone patches with special permeation enhancers that could successfully increase testosterone levels were developed and marketed. However, non-scrotal testosterone patches nonetheless require a large skin area for application (up to 60 cm2) and must be replaced daily.
Membranes prepared from graphite oxides (recently more often named as "graphene oxide" membranes) are vacuum tight and impermeable to nitrogen and oxygen, but are permeable to water vapors. The membranes are also impermeable to "substances of lower molecular weight". Permeation of graphite and graphene oxide membranes by polar solvents is possible due to swelling of the graphite oxide structure. The membranes in swelled state are also permeable by gases, e.g. helium.
McGuire's one-time near-ubiquity in Channel Nine programming led to him being nicknamed "Eddie Everywhere"."'Eddie Everywhere' returns to hosting duties for World Cup" , Retrieved on 9 August 200921 August 2007. "Eddie Everywhere returns to the commentary box" , Retrieved on 9 August 2009 In 2004 the ABC comedy television program CNNNN featured a satirical skit about his permeation of Australian media called the "Eddie McGuire Virus".18 May 2007.
Amorphous polymers exhibit ESC because of their loose structure which makes it easier for the fluid to permeate into the polymer. Amorphous polymers are more prone to ESC at temperature higher than their glass transition temperature (Tg) due to the increased free volume. When Tg is approached, more fluid can permeate permeation into the polymer chains. ESC and polymer resistance to ESC (ESCR) have been studied for several decades.
Ethosomal systems compare favourably to alternative carriers for quantity and depth of molecule delivery.Wilson V, Siram K, Rajendran S, Sankar V. (2017) Development and evaluation of finasteride loaded ethosomes for targeting to the pilosebaceous unit. Artif Cells Nanomed Biotechnol., 1-10.Paolino D, Lucania G, Mardente D, Alhaique F, Fresta M. (2005) Ethosomes for skin delivery of ammonium glycyrrhizinate: in vitro percutaneous permeation through human skin and in vivo anti-inflammatory activity on human volunteers.
The second of these, "Transition", details the case for gradualism and permeation, asserting that "the necessity for cautious and gradual change must be obvious to everyone". In 1890 Shaw produced Tract No. 13, What Socialism Is, a revision of an earlier tract in which Charlotte Wilson had defined socialism in anarchistic terms. In Shaw's new version, readers were assured that "socialism can be brought about in a perfectly constitutional manner by democratic institutions".
Membrane-based biogas upgrading systems utilize the different permeabilities of gases through a membrane fiber. As biogas passes through a dense polymeric membrane, CO2 is prevented from through-flow and removed, while CH4 passes through. Membrane-based gas permeation systems consume only electrical power, but do not require any chemicals or water. In order to achieve higher methane contents (up to 99% methane) in the final gas, the gas passes through serial groups of membranes.
Oxygen transmission rate (OTR) is the measurement of the amount of oxygen gas that passes through a substance over a given period. It is mostly carried out on non-porous materials, where the mode of transport is diffusion, but there are a growing number of applications where the transmission rate also depends on flow through apertures of some description. It relates to the permeation of oxygen through packaging to sensitive foods and pharmaceuticals.
There are two main production techniques for synthetic wine closures: injection molding and extrusion. There are also methods claimed to combine the two techniques of injection and extrusion. A 2007 study by Victor Segalen Bordeaux 2 University showed that injection-molded synthetic corks allowed the highest levels of oxygen permeation when compared to natural cork and screw caps, offering the lowest protection against oxidation of the wine.Kramer, Matt, Wine Spectator (October 31, 2007).
Single channel data from cardiomyocytes have shown that protons can decrease the conductance of individual sodium channels. The sodium channel selectivity filter is composed of a single residue in each of the four pore-loops of the four functional domains. These four residues are known as the DEKA motif. The permeation rate of sodium through the sodium channel is determined by a four carboxylate residues, the EEDD motif, which make up the outer charged ring.
Latrunculin A and latrunculin B affect polymerization of actin. Latrunculin binds actin monomers near the nucleotide binding cleft with 1:1 stoichiometry and prevents them from polymerizing. The nucleotide monomers are prevented from dissociation from the nucleotide binding cleft, thus preventing polymerizing. Experimental evidence shows that latruculin-A is biologically active in the solvent DMSO, but not in aqueous solutions, as demonstrated in cell culture and in brain tissue probably due to cellular permeation.
Materials with the lowest bulk hydrogen solubility and diffusivity provide the optimal candidates for stable permeation barriers. Other than a few specific pure metals, like tungsten and beryllium, carbides, dense oxides, and nitrides have been investigated. Research has highlighted that coating techniques for preparing well adhered and perfect barriers are of equivalent importance to material selection. The most attractive techniques are those in which an ad-layer is formed by oxidation alone.
As a rubber additive, mica reduces gas permeation and improves resiliency. Dry-ground mica is used in the production of rolled roofing and asphalt shingles, where it serves as a surface coating to prevent sticking of adjacent surfaces. The coating is not absorbed by freshly manufactured roofing because mica's platy structure is unaffected by the acid in asphalt or by weather conditions. Mica is used in decorative coatings on wallpaper, concrete, stucco, and tile surfaces.
For the digestion the proteins fixed in the matrix of the gel have to be made accessible for the protease. The permeation of the enzyme to the gel is believed to be facilitated by the dehydration of the gel pieces by treatment with acetonitrile and subsequent swelling in the digestion buffer containing the protease. This procedure relies on the presumption that the protease permeates to the gel by the process of swelling.
The leading process for desalination in terms of installed capacity and yearly growth is reverse osmosis (RO). The RO membrane processes use semipermeable membranes and applied pressure (on the membrane feed side) to preferentially induce water permeation through the membrane while rejecting salts. Reverse osmosis plant membrane systems typically use less energy than thermal desalination processes. Energy cost in desalination processes varies considerably depending on water salinity, plant size and process type.
Voltage-gated ion channel in its closed, open, and inactivated states. The inactivated channel is still in its open state, but the ball domain blocks ion permeation. The ball and chain model, also known as N-type inactivation or hinged lid inactivation, is a gating mechanism for some voltage-gated ion channels. Voltage-gated ion channels are composed of 4 α subunits, one or more of which will have a ball domain located on its cytoplasmic N-terminus.
The committees are: Awards, Early Careers, Education, Finance, Member Services, Membership, Committee for Inclusion and Diversity, Nominating, Professional Opportunities for Women, Program, Public Affairs, Publications, and Thematic Meetings. The Biophysical Society also supports subgroups focusing on smaller areas within biophysics. The current subgroups are: Bioenergetics, Mitochondria, and Metabolism, Bioengineering, Biological Fluorescence, Biopolymers in vivo, Cell Biophysics, Cryo-EM, Exocytosis and Endocytosis, Intrinsically Disordered Proteins, Membrane Biophysics, Membrane Structure & Function, Mechanobiology, Molecular Biophysics, Motility & Cytoskeleton, Nanoscale Biophysics, and Permeation & Transport.
All academics in the UK could apply for a free account on the NES. The science and research ranged from the permeation of drugs through a membrane to the welfare of ethnic minority groups in the United Kingdom.The UK National e-Infrastructure Service, Weeks K ERCIM news July 2007 Service-Oriented Computing 2007. Other applications included modelling the coastal oceans, modelling of HIV mutations, research into cameras for imaging patients during cancer treatments and simulating galaxy formation.
At the anode, hydrogen and oxygen do not react at the iridium oxide catalyst. Thus, safety hazards due to explosive anodic mixtures hydrogen in oxygen can result. The supplied energy for the hydrogen production is lost, when hydrogen is lost due to the reaction with oxygen at the cathode and permeation from the cathode across the membrane to the anode corresponds. Hence, the ratio of the amount of lost and produced hydrogen determines the faradaic losses.
Strain-fields (bright) around ion-track cores in FeCr2O4. Ion tracks are damage-trails created by swift heavy ions penetrating through solids, which may be sufficiently-contiguous for chemical etching in a variety of crystalline, glassy, and/or polymeric solids. They are associated with cylindrical damage-regions several nanometers in diameter and can be studied by Rutherford backscattering spectrometry (RBS), transmission electron microscopy (TEM), small-angle neutron scattering (SANS), small-angle X-ray scattering (SAXS) or gas permeation.
When filtration occurs the local concentration of rejected material at the membrane surface increases and can become saturated. In UF, increased ion concentration can develop an osmotic pressure on the feed side of the membrane. This reduces the effective TMP of the system, therefore reducing permeation rate. The increase in concentrated layer at the membrane wall decreases the permeate flux, due to increase in resistance which reduces the driving force for solvent to transport through membrane surface.
Many resistances were raised, but Berlin, which had been the strongest opponent, has accepted the plan since 2000. About 73 percent of cities with a population of 100,000 or more apply a separate calculation method, which divides the cost of sewage into the rainwater cost. Usually, Germany calculates concrete, asphalt, and building roofs as impervious areas and charges an annual fee of $2.6 per m². Builders are installing rainfall storage tank and permeation facilities to receive reduction in fees.
Size-exclusion chromatography (SEC), also known as gel permeation chromatography or gel filtration chromatography, separates particles on the basis of molecular size (actually by a particle's Stokes radius). It is generally a low resolution chromatography and thus it is often reserved for the final, "polishing" step of the purification. It is also useful for determining the tertiary structure and quaternary structure of purified proteins. SEC is used primarily for the analysis of large molecules such as proteins or polymers.
Bernard Semmel described it as "the most successful socialist publication in Great Britain during the period before the war of 1914".Semmel, p. 214. By 1892 Blatchford had removed himself from the candidature in Bradford East and began siding with the Social Democratic Federation (SDF) against the Fabians' policy of "permeation." The joining of The Clarion and SDF resulted in the formation in 1892 of the Manchester Independent Labour Party, which soon devised the Manchester Fourth Clause.
Gel permeation chromatography is often used in combination with multi-angle light scattering (MALS), Low-angle laser light scattering (LALLS) and/or viscometry for an absolute determination (i.e., independent of the chromatographic separation details) of the molecular weight distribution as well as the branching ratio and degree of long chain branching of a polymer, provided a suitable solvent can be found.S. Podzimek. The use of GPC coupled with a multiangle laser light scattering photometer for the characterization of polymers.
Permeability depends on the temperature of the interaction as well as the characteristics of both the polymer and the permeant component. Through the process of sorption, molecules of the permeant can be either absorbed or desorbed at the interface. The permeation of a material can be measured through numerous methods that quantify the permeability of a substance through a specific material. Permeability due to diffusion is measured in SI units of mol/(m・s・Pa) although Barrers are also commonly used.
Moreover, in cases involving topical therapeutics, the role of MSM as an active agent, per se, versus its having a role in promoting skin permeation (in manner, akin to its solvent relative DMSO) must be characterized/controlled. The biochemical effects of supplemental methylsulfonylmethane are poorly understood. Some researchers have suggested that MSM has anti-inflammatory effects. The spectrum of biological effects of dimethyl sulfoxide (DMSO) and MSM differ, but those of DMSO may be mediated, at least in part, by MSM.
The Journal of Membrane Science is a peer-reviewed scientific journal, established by Harry Lonsdale, covering research on membrane permeation, selectivity, formation, structure, fouling, processing and application. The editor-in-chief is Jerry Y. S. Lin (Arizona State University, Tempe, Arizona, United States) and Rong Wang (Nanyang Technological University, Singapore, Singapore). According to the Journal Citation Reports, the journal has a 2019 impact factor of 7.015. Its scopus rank is 1 in Filtration and separation category and 19 in biochemistry category.
The helium that escapes through the leaks is detected by a sensitive device (helium mass spectrometer), even at the leak rates as small as 10−9 mbar·L/s (10−10 Pa·m3/s). The measurement procedure is normally automatic and is called helium integral test. A simpler procedure is to fill the tested object with helium and to manually search for leaks with a hand- held device. Helium leaks through cracks should not be confused with gas permeation through a bulk material.
Illustration of the Enhanced Permeation and Retention (EPR) effect of macromolecular structures as drug delivery systems in malignant tissue. The increased permeability of tumor-associated endothelial cells permits macromolecules to leave the blood system and directly enter the tumor interstitial space. There is also a retention effect that allows these macromolecules to stay at tumor sites due to the suppression of lymphatic infiltration. This observation has been termed the enhanced permeability and retention (EPR) effect and has been exploited for cancer nano-therapeutics.
Since they were first buried, the small sutra tubes have decayed, so instead, sutra words have been written on small flat stones. Mounds containing stones where one character has been written on each, and mounds with multiple characters on each stone, became more popular. There are places where the stones were buried and covered up and a memorial stone was placed. In recent centuries, an increase in agriculture and the permeation of a monetary economy has moved religious actions to the background.
The editing process for Schwechater lasted six months. Kubelka produced a score for the film with a complex system of overlapping structures to determine how to combine the eight film strips. One such structure specifies outlines the gradual permeation of the colour red in Schwechater. The film starts alternates between black-and-white sequences and red sequences; the black and white sequences decrease in duration from 110 frames down to 10 frames as the red sequences remain are all roughly 30 frames.
WR-1065, 2-((aminopropyl)amino)ethanethiol, the active metabolite of amifostine Amifostine is an organic thiophosphate prodrug which is hydrolysed in vivo by alkaline phosphatase to the active cytoprotective thiol metabolite, WR-1065. The selective protection of non-malignant tissues is believed to be due to higher alkaline phosphatase activity, higher pH, and vascular permeation of normal tissues. Amifostine can be administered intravenously or subcutaneously after reconstitution with normal saline. Infusions lasting less than 15 minutes decrease the risk of adverse effects.
The possible presence of water molecules in the pore lumen calls for a reassessment of the notion that Amt/Rh proteins work as plain NH3 channels. Indeed, functional experiments on plant ammonium transporters and Rh proteins suggest a variety of permeation mechanisms including the passive diffusion of NH3, the antiport of NH4+/H+, the transport of NH4+, or the cotransport of NH3/H+. Lamoureux et al. discuss these mechanisms in light of functional and simulation studies on the AmtB transporter.
With a 0.1-0.7 mm thick mucus layer, the oral cavity serves as an important route of administration for mucoadhesive dosages. Permeation sites can be separated into two groups: sublingual and buccal, in which the former is much more permeable than the latter. However, the sublingual mucosa also produces more saliva, resulting in relatively low retention rates. Thus, sublingual mucosa is preferable for rapid onset and short duration treatments, while the buccal mucosa is more appropriate for longer dosage and onset times.
Applying his gift for discerning the root of a problem, he considered plasma permeation through a picket fence magnetic system and, in 1957, was the first to theoretically determine the width of a magnetic gap for a cusp system. His approach is still used. Around the same time, Firsov also carried out two of his best-known works. In 1957, he found the exact upper and lower limits of the interaction potential between two atoms in the Thomas-Fermi approximation.
However, ZIFs tend to be expensive to synthesize. MOFs require synthesis methods with long reaction periods, high pressures, and high temperatures, which aren’t methods that are easy to scale-up. ZIFs do tend to be more affordable than commercially available non-ZIF MOFs. When combined with polymer-sorbent materials, research determined that hybrid polymer-ZIF sorbent membranes no longer following the upper bound of the Robeson plot, which is a plot of selectivity as a function of permeation for membrane gas separation.
The main objective of a reuptake inhibitor is to substantially decrease the rate by which neurotransmitters are reabsorbed into the presynaptic neuron, increasing the concentration of neurotransmitter in the synapse. This increases neurotransmitter binding to pre- and postsynaptic neurotransmitter receptors. Depending on the neuronal system in question, a reuptake inhibitor can have drastic effects on cognition and behavior. Non-competitive inhibition of the bacterial homologue LeuT by tricyclic antidepressants resulted from binding of these inhibitors in the extracellular permeation pathway.
PCTFE films have the lowest water vapor permeation compared to all other plastic films used in blister packaging and have thermoforming properties similar to plain PVC though it is also the most expensive. Despite narrow thermoforming temperatures and required cooling steps PP is increasingly popular. This popularity is due in part to it not suffering the environmental liability that PVC suffers in discharging hydrochloric acid during incineration. Unplasticised PVC has good thermoforming properties but may not provide good moisture protection for some products.
The challenging stare of the women on the left reflects hostility towards the permeation of the private space. Aside from this glance there is no depiction of the nineteenth century social customs of the harems of elite Algerian culture. Ultimately Delacroix's stolen glance into the Algerian harem provided him with little visual information to create a realistic image. With these gaps in visual information Delacroix fills the voids with his own European interpretation, resulting in a subtler version of the fantasy female.
He took in an interest in pathology as a route to becoming a surgeon and became a Fellow of the Royal College of Surgeons in 1897. He worked at the cancer research wing at the Middlesex Hospital where he researched the methods by which cancer spread. He found that the main extension of breast cancer was along the lymphatics and he coined the words Lymphatic permeation. In 1905 he became an Assistant Surgeon at the Middlesex Hospital and continued his research into cancer.
A typical GPC instrument including: A. Autosampler, B. Column, C. Pump, D. RI detector, E. UV-vis detector Inside of an autosampler for running several samples without user interaction, e.g. overnight Gel permeation chromatography is conducted almost exclusively in chromatography columns. The experimental design is not much different from other techniques of liquid chromatography. Samples are dissolved in an appropriate solvent, in the case of GPC these tend to be organic solvents and after filtering the solution it is injected onto a column.
It is estimated that the central portion of the dam crest has settled by around since the end of the construction. Settlement of the dam crest up to has been measured since the start of the detailed geodetic monitoring in 1992. The maximum horizontal (radial) deformation measured is about . The permeation grouting work was carried out by subcontractor Solétanche Bachy and the rehabilitation work for the post-tensioning of the dam crest with ground anchors by Vorspann System Losinger International (VSL).
The ferrichrome complex then binds tightly to both the β-barrel wall and the "cork". As a result, these binding triggers two key conformation changes to iron-ferrichrome complex to transfer energy to the cork. This energy transfer results in subsequent conformational changes that transport iron- ferrichrome to the periplasmic pocket which signal a ligand loaded status of the receptor. These subtle shifts disrupt the binding of iron-ferrichrome to the cork which then allows the permeation of the ferrichrome-iron to a putative channel-forming region.
The pattern of metastasis is different for gastric signet cell carcinoma than for intestinal-type gastric carcinoma. The SRCC tumor is often seen in the peritoneum and has also been known to spread to lymphatic permeation of the lungs and to the ovaries, creating Krukenberg tumors. Cases of gastric carcinomas metastasizing to the breast and forming signet-ring cells have also been reported. One study suggests that when signet-ring cells are found in a breast tumor, the presence of gastric cancer should also be considered.
However, the Procyanidolic Index is a relative value that can measure well over 100. Unfortunately, a Procyanidolic Index of 95 was erroneously taken to mean 95% PCO by some and began appearing on the labels of finished products. All current methods of analysis suggest that the actual PCO content of these products is much lower than 95%.Grape Seed Extract, White paper, The Grape Seed Method Evaluation Committee, Under the Auspices of NNFA ComPli Gel permeation chromatography (GPC) analysis allows separation of monomers from larger proanthocyanidin molecules.
In soils which lack natural clay, additional water loss to drainage and permeation is prevented by a liner. Pond liners are PVC or EPDM foils that are placed between the soil of the pond bed and the water. Liners can also be made from puddled clay, and ponds on free-draining soils can even be self-sealing with fine sediments washed into the pond. ;Seasonal ponds One can make a garden pond / koi pond that generally ranges in size from 150 gallons to around 10,000 gallons.
Methods of resistance include thickening of the cuticle of the insect to limit permeation of the insecticide, metabolic resistance via overexpression of metabolizing cytochrome P450 mono-oxygenases and glutathione-S-transferases, and the knockdown resistance (kdr) sodium channel mutations which render the action of insecticides ineffectual, even when co-administered with piperonyl butoxide. Characterization of the different forms of resistance among mosquitoes has become a top priority in groups studying tropical medicine due to the high mortality of those who reside in endemic areas.
Integrasone occurs naturally in an unidentified sterile fungus. This fungus has been given the label MF6836 by Merck researchers, and was grown on a vermiculite-based solid media, AD2. The methyl ethyl ketone extract of the fungal growth on Sephadex LH 20 (a liquid chromatography medium designed for the separation of small natural products) was then run through both gel permeation chromatography and high performance liquid chromatography to isolate integrasone, which was separated as an amorphous powder at a concentration of 1.8 g/L.
Sulfatide can also be found in the kidney. Although sulfatide is not necessary for the kidneys to maintain their function and structure, it does play an active role in different aspects of the kidney. For example, sulfatide is a ligand for L-selectin, which is a receptor that can be found in the kidneys. Specifically, L-selectin is a lymphoid receptor, and the binding between L-selectin and sulfatide in the kidney's interstitium plays a major role in monocyte permeation and infiltration into the kidney.
George Ford from the Phoenix Center commented that a reasonable target for broadband would be 95% Internet availability to Americans in five years and questioned the need for coverage across the entire country. There has been a large permeation of Internet users over the last five years. However, there are still reasons to have wired networking. As stated by Brendan Greeley, call centers and data storage facilities placed in smaller towns need the speed and capacity that a wired fiber optic network can provide.
Depths of the Baltic Sea in meters The Baltic Sea flows out through the Danish straits; however, the flow is complex. A surface layer of brackish water discharges per year into the North Sea. Due to the difference in salinity, by salinity permeation principle, a sub-surface layer of more saline water moving in the opposite direction brings in per year. It mixes very slowly with the upper waters, resulting in a salinity gradient from top to bottom, with most of the saltwater remaining below deep.
THF has been explored as a miscible co-solvent in aqueous solution to aid in the liquefaction and delignification of plant lignocellulosic biomass for production of renewable platform chemicals and sugars as potential precursors to biofuels. Aqueous THF augments the hydrolysis of glycans from biomass and dissolves the majority of biomass lignin making it a suitable solvent for biomass pretreatment. THF is often used in polymer science. For example, it can be used to dissolve polymers prior to determining their molecular mass using gel permeation chromatography.
Therefore, the tAqpZ structure has two different Arg-189 conformations which provide water permeation through the channel. Alternating between the two Arg-189 conformations disrupts continuous flow of water, thus regulating the open probability of the water pore. Further, the difference in Arg-189 displacements is correlated with a strong electron density found between the first transmembrane helices of two open channels, suggesting that the observed Arg-189 conformations are stabilized by asymmetrical subunit interactions in tAqpZ. Other resolved crystal structures for AqpZ include: , , .
Allen studied the Natural Sciences Tripos at the University of Cambridge, graduating with a Bachelor of Arts (BA) and Master of Science (MSci) degrees in 1999. She was an undergraduate student at Emmanuel College, Cambridge. She moved to America for further postgraduate study, earning another master's degree (MS) in chemistry at the University of Pennsylvania. She returned to Cambridge for her doctoral studies, earning a PhD in 2003 for research supervised by Jean-Pierre Hansen on theoretical chemistry and computational simulations of water permeation of nanopores.
The depletion of PPARG will result in embryonic lethality at E10.5, due to the vascular anomalies in placenta, with no permeation of fetal blood vessels and dilation and rupture of maternal blood sinuses. The expression PPARG can be detected in placenta as early as E8.5 and through the remainder of gestation, mainly located in the primary trophoblast cell in the human placenta. PPARG is required for epithelial differentiation of trophoblast tissue, which is critical for proper placenta vascularization. PPARG agonists inhibit extravillous cytotrophoblast invasion.
As mentioned before, connectivity is built on the principles of Web 2.0. that promote an openness, create the vision of empowerment of the user in the generation of a new content and coordination of the information flow on the Internet. These mechanisms encourage staying in touch with each other despite distances and share as much data as possible. According to Youngs, the development of the Internet has resulted in the deeper permeation of ICTs into public and private spheres of peoples' life, their relationships and spheres of identity.
The game became Alcachofa Soft's first effort entirely independently, without an publisher or external distributor. Meristation felt the game had an opportunity to captivate the national adventure market though felt it was possible for global permeation. The developers put out a special message requesting players not to pirate the game. As part of its coverage of the game, CTV published a multi-part section entitled How El Tesoro de Isla Alcachofa was made. In 2000, Alcachofa Soft distributed more than 100,000 units of both “Isla Alcachofa”and “Mortadelo y Filemón”, just within Spanish territories.
With WaTx bound in open state, TRPA1 lacks a preference for Ca2+ over Na+, which accounts for the lower calcium permeability. Consequently, both electrophilic ligands and WaTx trigger a pain response, but the calcium levels that result from WaTx are too low to initiate subsequent neuropeptide release and neurogenic inflammation. This suggests that WaTx may act only to open the ion permeation gate of TRPA1, without dilating the selectivity filter (dilation of the selectivity filter having been proposed to underlie enhanced calcium permeability of TRPA1 after activation by classical electrophilic irritants).
It was discovered by Robeson in the early 1990s that polymers with a high selectivity have a low permeability and opposite is true; materials with a low selectivity have a high permeability. This is best illustrated in a Robeson plot where the selectivity is plotted as a function of the CO2 permeation. In this plot, the upper bound of selectivity is approximately a linear function of the permeability. It was found that the solubility in polymers is mostly constant but the diffusion coefficients vary significantly and this is where the engineering of the material occurs.
The simplified figure of a nanoporous membrane shows a small portion of an example membrane structure with cavities and windows. The white portion represents the area where the molecule can move and the blue shaded areas represent the walls of the structure. In the engineering of these membranes, the size of the cavity (Lcy x Lcz) and window region (Lwy x Lwz) can be modified so that the desired permeation is achieved. It has been shown that the permeability of a membrane is the production of adsorption and diffusion.
Little is known about the biological activity and composition of marine fish venoms, due to the difficulties in obtaining, storing and extracting venom samples. The National University of Singapore performed the first purification of the stonefish venom, because stonefish stings have been responsible for a number of deaths and severe poisoning cases in the local area. The molecular weight was determined by high performance liquid chromatography at pH 7.0 using 10 mM sodium phosphate buffer with 0.2M sodium sulfate in a gel permeation column at a flow rate of 1.0 ml/min.
In this way permeation and totality of beginning and end symbolised the supreme wholeness and the universal synthesis of opposites as a 'cancellation' (i.e. solvent) or cohesion (i.e. medicine), and in such a way is similar to the philosophical "absolute" of Hegel's dialectic. Crowley further made reference in his works referring to Azoth as "the fluid", calling it the universal solvent or universal medicine of the medieval alchemical philosophers, as a unifier or unification of a certain extreme instance beholden to a contradict, unreconcilable nature if otherwise sought apart of the philosophical ideal of Azoth.
Within all eukaryotic cells, mitochondria are responsible for synthesis of ATP among other metabolite needed for cell survival. VDAC1 therefore allows for communication between the mitochondrion and the cell mediating the balance between cell metabolism and cell death. Besides metabolic permeation, VDAC1 also acts as a scaffold for proteins such as hexokinase that can in turn regulate metabolism. This protein is a voltage-dependent anion channel and shares high structural homology with the other VDAC isoforms (VDAC2 and VDAC3), which are involved in the regulation of cell metabolism, mitochondrial apoptosis, and spermatogenesis.
MT-Energie GmbH is a biogas technology company operating in the field of renewable energies. The company's headquarters are in Zeven (Germany) The UK branch office is located in Bridgnorth, Shropshire. MT-Energie develops and distributes both turnkey biogas powerplants and special bioprocess engineering components. Furthermore, it offers technical and biological services for biogas plants. The company’s subsidiary MT-Biomethan GmbH, which was founded as part of the MT Group in 2008, offers technologies for biogas upgrading based on the process of pressureless amine scrubbing and a membrane-based gas permeation.
The use of nano-PTFE in fluoroelastomers and perfluoroelastomers improves abrasion resistance, lowers friction, lowers permeation, and can act as clean filler. Using conductive carbon black or other fillers can exhibit the useful properties of conductive rubber, namely preventing electrical arcing, static sparks, and the overall build-up of charge within rubber that may cause it to behave like a capacitor (electrostatic dissipative). By dissipating these charges, these materials, which include doped carbon-black and rubber with metal filling additives, reduce the risk of ignition, which can be useful for fuel lines.
The pervaporation method uses a membrane that is more permeable to the one constituent than to another to separate the constituents of an azeotrope as it passes from liquid to vapor phase. The membrane is rigged to lie between the liquid and vapor phases. Another membrane method is vapor permeation, where the constituents pass through the membrane entirely in the vapor phase. In all membrane methods, the membrane separates the fluid passing through it into a permeate (that which passes through) and a retentate (that which is left behind).
The main application of gel-filtration chromatography is the fractionation of proteins and other water-soluble polymers, while gel permeation chromatography is used to analyze the molecular weight distribution of organic-soluble polymers. Either technique should not be confused with gel electrophoresis, where an electric field is used to "pull" or "push" molecules through the gel depending on their electrical charges. The amount of time a solute remains within a pore is dependent on the size of the pore. Larger solutes will have access to a smaller volume and vice versa.
Cooling is typically by pulling through a set of cooling rolls (calender or "chill" rolls). In sheet extrusion, these rolls not only deliver the necessary cooling but also determine sheet thickness and surface texture. Often co-extrusion is used to apply one or more layers on top of a base material to obtain specific properties such as UV-absorption, texture, oxygen permeation resistance, or energy reflection. A common post-extrusion process for plastic sheet stock is thermoforming, where the sheet is heated until soft (plastic), and formed via a mold into a new shape.
At Toyota’s Higashi-Fuji Technical Center, the Mirai has been subjected to extensive crash testing to evaluate a design specifically intended to address frontal, side and rear impacts and to provide claimed excellent protection of vehicle occupants. A high level of collision safety has also been achieved to help protect the fuel cell stack and high- pressure tanks against body deformation. The high pressure hydrogen tanks is claimed to have excellent hydrogen permeation prevention performance, strength, and durability. Hydrogen sensors provide warnings and can shut off tank main stop valves.
Vitaros® - is a rapid-onset (generally 5–15 minutes) topical cream for the treatment of erectile dysfunction. It contains Prostaglandin E1 as the active ingredient and the Company's proprietary permeation enhancer (NexACT®) which facilitates the delivery of the drug into the blood stream. The current formulation of Vitaros requires refrigeration and is delivered via a small individual dispenser. Vitaros has been approved for patient use in Canada and Europe and to date (January 24, 2015) has been launched by marketing partners in the United Kingdom (Takeda), Germany (Sandoz), Sweden (Sandoz) and Belgium (Sandoz).
By this route, drugs cross the skin by directly passing through both the phospholipids membranes and the cytoplasm of the dead keratinocytes that constitute the stratum corneum. Although this is the path of shortest distance, the drugs encounter significant resistance to permeation. This resistance is caused because the drugs must cross the lipophilic membrane of each cell, then the hydrophilic cellular contents containing keratin, and then the phospholipid bilayer of the cell one more time. This series of steps is repeated numerous times to traverse the full thickness of the stratum corneum.
Some types of bubble wrap have a lower permeation barrier film to allow longer useful life and resistance to loss of air in vacuums. The bubbles can be as small as in diameter, to as large as or more, to provide added levels of shock absorption during transit. The most common bubble size is 1 centimeter. In addition to the degree of protection available from the size of the air bubbles in the plastic, the plastic material itself can offer some forms of protection for the object in question.
The Gleichschaltung of all political and social institutions and the permeation of everyday life with the National Socialist mindset was noticeable even in Münchwald. Beginning in 1939, men were being called into the Wehrmacht to go to war; many of them fell. In memory of those who had fallen in both world wars, a monument was erected in Münchwald in 1959, financed out of private citizens’ donations. In the spring of 1945, the Nahe region was occupied by American troops, but then later transferred to the French zone of occupation.
The molecular mass of a polymer differs from typical molecules, in that polymerization reactions produce a distribution of molecular weights and shapes. The distribution of molecular masses can be summarized by the number average molecular weight, weight average molecular weight, and polydispersity. Some of the most common methods for determining these parameters are colligative property measurements, static light scattering techniques, viscometry, and size exclusion chromatography. Gel permeation chromatography, a type of size exclusion chromatography, is an especially useful technique used to directly determine the molecular weight distribution parameters based on the polymer's hydrodynamic volume.
The PDE5 inhibitors sildenafil (Viagra), vardenafil (Levitra) and tadalafil (Cialis) are prescription drugs which are taken by mouth. As of 2018, sildenafil is available in the UK without a prescription. Additionally, a cream combining alprostadil with the permeation enhancer DDAIP has been approved in Canada as a first line treatment for ED. Penile injections, on the other hand, can involve one of the following medications: papaverine, phentolamine, and prostaglandin E1, also known as alprostadil. In addition to injections, there is an alprostadil suppository that can be inserted into the urethra.
In this case, velocity of sound propagation in the fluid in the pores is non-dispersive and compared with the value of the velocity of sound in the free fluid is reduced by a ratio equal to the square root of the tortuosity. This has been used for a number of applications including the study of materials for acoustic isolation, and for oil prospection using acoustics means. In analytical chemistry applied to polymers and sometimes small molecules tortuosity is applied in Gel permeation chromatography (GPC) also known as Size Exclusion Chromatography (SEC). As with any chromatography it is used to separate mixtures.
In the case of GPC the separation is based on molecular size and it works by the use of stationary media with appropriately dimensioned pores. The separation occurs because larger molecules take a shorter, less tortuous path and elute more quickly and smaller molecules can pass into the pores and take a longer, more tortuous path and elute later. In pharmaceutical sciences, tortuosity is used in relation to diffusion-controlled release from solid dosage forms. Insoluble matrix formers, such as ethyl cellulose, certain vinyl polymers, starch acetate and others control the permeation of the drug from the preparation and into the surrounding liquid.
After binding to the outer pore region of the TRPV1, RhTx can interact with both the turret and the pore helix through electrostatic and hydrophobic interactions. RhTx binding is expected to induce conformational changes to the outer pore, which are thought to be the cause of the drop of the activation threshold for the TRPV1 channel. These changes strongly promote the opening of the TRPV1 channel at the normal body temperature of the organism, resulting in intense burning pain. It is hypothesized that RhTx binding might also interfere with ion permeation due to its interaction with the pore helix.
In nature, Staphylococcus aureus secretes alpha-hemolysin monomers that bind to the outer membrane of susceptible cells. Upon binding, the monomers oligomerize to form a water- filled transmembrane channel that facilitates uncontrolled permeation of water, ions, and small organic molecules. Rapid discharge of vital molecules such as ATP, dissipation of the membrane potential and ion gradients, and irreversible osmotic swelling leading to the cell wall rupture (lysis) can cause death of the host cell. This pore consists of seven alpha-hemolysin subunits, which represent the major cytotoxic agent that is freed by this kind of bacterium.
For example, diffusion into solid tumors is impeded by large SNALPs and, similarly, inflamed cells having enhanced permeation and retention make it difficult for large SNALPs to enter. In addition, reticuloendothelial elimination, blood-brain barrier size-selectivity and limitations of capillary fenestrae all necessitate a smaller SNALP in order to effectively deliver target-specific siRNA. In 2012, scientists in Germany developed what they termed "mono-NALPs" using a fairly simple solvent exchange method involving progressive dilution of a 50% isopropanol solution. What results is a very stable delivery system similar to traditional SNALPs, but one having only a diameter of 30 nm.
Vapor phase osmometry (VPO), also known as vapor-pressure osmometry, is an experimental technique for the determination of a polymer's number average molecular weight, Mn. It works by taking advantage of the decrease in vapor pressure that occurs when solutes are added to pure solvent. This technique can be used for polymers with a molecular weight of up to 20,000 though accuracy is best for those below 10,000. Although membrane osmometry is also based on the measurement of colligative properties, it has a lower bound of 25,000 for sample molecular weight that can be measured owing to problems with membrane permeation.
There were also attempts to fractionate synthetic high polymers; however, it was not until 1964, when J. C. Moore of the Dow Chemical Company published his work on the preparation of gel permeation chromatography (GPC) columns based on cross-linked polystyrene with controlled pore size, that a rapid increase of research activity in this field began. It was recognized almost immediately that with proper calibration, GPC was capable to provide molar mass and molar mass distribution information for synthetic polymers. Because the latter information was difficult to obtain by other methods, GPC came rapidly into extensive use.
The origins of the Germanic people's powerful ascent, leading them to displace the Celts, are not easy to discern. For example, we do not know to what degree Pomeranian culture gave way to Przeworsk culture by internal evolution, external population influx, or just permeation by the new regional cultural trends. The early Germanic Jastorf cultural sphere was in the beginning an impoverished continuation of the North German Urnfield culture and the Nordic circle cultures. It formed around 700–550 BCE in Northern Germany and Jutland under Hallstatt influence; in its early stages, its funeral customs strongly resembled those of the contemporary Pomeranian culture.
True aerosol sprays release their propellant during use. Some non-propellant alternatives include various spray bottles, squeeze bottles, and Bag on Valve (BoV) / Bag in Can (BiC) compressed gas aerosol systems. Packaging that uses a piston barrier system by CCL Industries or EarthSafe by Crown Holdings is often selected for highly viscous products such as post-foaming hair gels, thick creams and lotions, food spreads and industrial products and sealants. The main benefit of this system is that it eliminates gas permeation and assures separation of the product from the propellant, maintaining the purity and integrity of the formulation throughout its consumer lifespan.
In the STAR process for the catalytic conversion of methane from natural gas with oxygen from air, to methanol by the partial oxidation 2CH4 \+ O2 \rightarrow 2CH3OH. The partial pressure of oxygen has to be low to prevent the formation of explosive mixtures and to suppress the successive reaction to carbon monoxide, carbon dioxide and water. This is achieved by using a tubular reactor with an oxygen-selective membrane. The membrane allows the uniform distribution of oxygen as the driving force for the permeation of oxygen through the membrane is the difference in partial pressures on the air side and the methane side.
After a rally in Trafalgar Square addressed by Besant was violently broken up by the authorities on 13 November 1887 ("Bloody Sunday"), Shaw became convinced of the folly of attempting to challenge police power. Thereafter he largely accepted the principle of "permeation" as advocated by Webb: the notion whereby socialism could best be achieved by infiltration of people and ideas into existing political parties. Throughout the 1880s the Fabian Society remained small, its message of moderation frequently unheard among more strident voices. Its profile was raised in 1889 with the publication of Fabian Essays in Socialism, edited by Shaw who also provided two of the essays.
Size-exclusion chromatography (SEC) is also known as gel permeation chromatography (GPC) or gel filtration chromatography and separates molecules according to their size (or more accurately according to their hydrodynamic diameter or hydrodynamic volume). Smaller molecules are able to enter the pores of the media and, therefore, molecules are trapped and removed from the flow of the mobile phase. The average residence time in the pores depends upon the effective size of the analyte molecules. However, molecules that are larger than the average pore size of the packing are excluded and thus suffer essentially no retention; such species are the first to be eluted.
For the Self language, much development time was spent on developing, compiling, and interpreting techniques to improve the performance of prototype-based systems versus class-based systems. A common criticism made against prototype-based languages is that the community of software developers is unfamiliar with them, despite the popularity and market permeation of JavaScript. This knowledge level of prototype-based systems seems to be increasing with the proliferation of JavaScript frameworks and the complex use of JavaScript as the Web matures. ECMAScript 6 introduced classes as syntactic sugar over JavaScript's existing prototype-based inheritance, providing an alternative way to create objects and deal with inheritance.
Luhmann's reservations concerning not only Marxist, but also bourgeois theories of economic society parallel his criticisms of Aristotelian political philosophy as a theory of political society. Both theories make the understandable error of "pars pro toto", of taking the part for the whole, which in this context means identifying a social subsystem with the whole of society. The error can be traced to the dramatic nature of the emergence of each subsystem and its functional primacy (for a time) in relation to the other spheres of society. Nevertheless, the functional primacy claimed for the economy should not have led to asserting an economic permeation of all spheres of life.
Furthermore, there is the screwcap's public image, as "consumers still perceive screwcaps as being for 'cheap' wines (regardless of the price tag)". In a 2004 study of consumer opinions conducted by the wine consulting firm Wine Intelligence found that nearly 52% of American consumers and 60% of British consumers reject the idea of using screwcaps for their fine wine.APCOR, realcork.org Wine Intelligence – Closures: The US Consumer View The 2007 Victor Segalen University study in Bordeaux showed that screw caps closures allowed the lowest amount of oxygen permeation when compared to natural and synthetic corks, offering the highest level of protection against oxidation of the wine.
Provided that the oily droplets being formed in the gut are sufficiently stable towards lipases, can permeate the mucus gel layer in sufficient quantities and exhibit permeation enhancing properties the oral bioavailability of various biologics can be strongly improved SMEDDS offer numerous advantages: spontaneous formation, ease of manufacture, thermodynamic stability, and improved solubilization of bioactive materials. Improved solubility contributes to faster release rates and greater bioavailability. For many drugs taken by mouth, faster release rates improve the drug acceptance by consumers. Greater bioavailability means that less drug need be used; this may lower cost, and does lower the stomach irritation and toxicity of drugs taken by mouth.
From the 1870s a series of working-class candidates financially supported by trade unions were accepted and supported by the Liberal Party. The federation of British unions, the Trades Union Congress (TUC), formed its own electoral committee in 1886 to further advance its electoral goals. Many socialist intellectuals, particularly those influenced by Christian socialism and similar notions of the ethical need for a restructuring of society, also saw the Liberals as the most obvious means for obtaining working-class representation. Within two years of its foundation in 1884, the gradualist Fabian Society officially committed itself to a policy of permeation of the Liberal Party.
For this purpose, aspartic acid, which is present as crystalline zwitterion and practically water-insoluble, is firstly dissolved with an aqueous, volatile acid (preferably hydrochloric acid) and mixed with phosphoric acid as condensing agent. The resulting homogeneous solution is evaporated at 120 °C and the resulting glassy mass is then polycondensed at 180 °C to 200 °C for at least one hour. The phosphoric acid is washed out and the dried polysuccinimide is converted by mild alkaline hydrolysis into water-soluble polyaspartic acid; the molar mass of which can be determined by gel permeation chromatography. The process provides reproducible polysuccinimide with molar masses above 100,000 g/mol.
Although it has been thought that the mature protein aggregates themselves are toxic, recent evidence suggests that it is in fact immature protein aggregates that are most toxic. The hydrophobic patches of these aggregates can interact with other components of the cell and damage them. The hypotheses are that the toxicity of protein aggregates is related to mechanisms of the sequestration of cellular components, the generation of reactive oxygen species and the binding to specific receptors in the membrane or through the disruption of membranes. A quantitative assay has been used to determine that higher molecular weight species are responsible for the membrane permeation.
Rochelle Goldberg (born 1984 in Vancouver, Canada) is a contemporary artist who lives and works in New York City and Berlin. Goldberg is best known for her sculptural works that challenge the fixity of the art object. Composed of living, ephemeral, and synthetic materials, ranging from chia seeds, oil, to ceramic, Goldberg's works are structured by "the logic of intraction," the artist's phrase for "an unruly set of relations in which the boundary between one entity is another is continually undermined." In her practice, intraction unfolds on both levels of form and content, rendering her sculptures "ontologically unreliable" and questioning "the distinction between living form and inert matter" through contact and permeation.
The research that appeared to spark an onslaught of modified applications was a gel permeation chromatography technique of fixing poly(isopropyl acrylate) (PIPA) strands to glass beads and separating a mixture of dextrans, which was developed by Gewehr et al. They found that between the temperatures of 25–32 °C, the elution time of dextrans at different molecular weights exhibited a dependence on the temperature. Dextrans of the highest molecular weight eluted first since the PIPA chains exhibit hydrophilicity at temperatures below the LCST. As the temperature of the elution increased, when the chains behave in a more hydrophobic manner, the elution times increased for each of the analytes for the given range.
A third process, supercritical carbon dioxide extraction, combines the best aspects of the other two methods. When carbon dioxide is put under at least of pressure and at a temperature of at least (the critical point), it becomes a supercritical fluid with the permeation properties of a gas and the solvation properties of a liquid. (Under normal pressure CO2 changes directly from a solid to a gas in a process known as sublimation.) The supercritical fluid CO2 extracts the aromatics from the plant material. Like solvent extraction, the CO2 extraction takes place at a low temperature, extracts a wide range of compounds rendering an essence more faithful to the original, and leaves the aromatics unaltered by heat.
Gel permeation chromatography (GPC) has become the most widely used technique for analyzing polymer samples in order to determine their molecular weights and weight distributions. Examples of GPC chromatograms of polystyrene samples with their molecular weights and dispersities are shown on the left. GPC Separation of Anionically Synthesized Polystyrene; Mn=3,000 g/mol, Đ=1.32 GPC Separation of Free-Radical Synthesized Polystyrene; Mn=24,000 g/mol, Đ=4.96 Standardization of a size exclusion column. Benoit and co-workers proposed that the hydrodynamic volume, Vη, which is proportional to the product of [η] and M, where [η] is the intrinsic viscosity of the polymer in the SEC eluent, may be used as the universal calibration parameter.
These plans can be then assembled, through either digital fabrication like 3D printing or even sourcing low-cost materials from local communities. It has been noticed that given how easy it is to use these low-cost materials are (for example: plywood), it can help increase the permeation of these open buildings to areas or communities that lack the know-how or abilities of conventional architectural or construction firms. Ergo, it allows for a fundamentally more standardised way of constructing houses and buildings. The overarching idea behind it remains key - to allow for easy access to user-friendly layouts which anyone can use to build in a more sustainable and affordable way.
Microgreens have a short shelf life and better methods of storing and transporting microgreens are currently being studied, which at this time are mainly focusing on buckwheat. Commercial microgreens are most often stored in plastic clamshell containers, which do not provide the right balance of oxygen and carbon dioxide for any live greens to breathe. Among package materials called films, differences in permeability, (see Permeation), are referred to as the oxygen transmission rate. The ARS researchers found that buckwheat microgreens packaged in films with an oxygen transmission rate of 225 cubic centimeters per square inch per day had a fresher appearance and better cell membrane integrity than those packaged in other films tested.
A committed CDU stalwart after World War II and champion of the rights of the Germans expelled from Poland, British historian Richard Grunberger cited him as an example of the permeation or infiltration of SS attitudes and values into mainstream postwar West German society and politics.Richard Grunberger, Hitler's SS (1970), page.114. Opinion revolves around his involvement in the SS, but it is unclear whether Kraft volunteered for the SS-Ehrenführer post at his own initiative or to advance his career or whether he was pressured to do so by his immiediate superiors. Both the Minister for Agriculture, Richard Walther Darré, and the Gauleiter of Warthegau, Arthur Greiser, were senior and important SS officers and that may have influenced Kraft.
M. Lambraki-Plaka, El Greco—The Greek, 49 Comparative morphological analyses of the two painters works reveal common elements: the distortion of the human body, the reddish and unworked backgrounds, and the similarities in the rendering of space.E. Foundoulaki, From El Greco to Cézanne, 105–106 According to Brown, "Cézanne and El Greco are spiritual brothers despite the centuries which separate them".J. Brown, El Greco of Toledo, 28 Fry observed that Cézanne drew from "his great discovery of the permeation of every part of the design with a uniform and continuous plastic theme".M. Lambraki-Plaka, From El Greco to Cézanne, 15 In 1904 Picasso moved to Paris, where the work of post- impressionist painters Van Gogh, Cézanne, Seurat, Gauguin were exhibited at galleries and Salons.
Solid lipid nanoparticles (SLNs) are a new pharmaceutical delivery system or pharmaceutical formulation. The conventional approaches such as use of permeation enhancers, surface modification, prodrug synthesis, complex formation and colloidal lipid carrier based strategies have been developed for the delivery of drugs to intestinal lymphatics. In addition, polymeric nanoparticles, self-emulsifying delivery systems, liposomes, microemulsions, micellar solutions and recently solid lipid nanoparticles (SLN) have been exploited as probable possibilities as carriers for oral intestinal lymphatic delivery.Studies on binary lipid matrix based solid lipid nanoparticles of repaglinide: in vitro and in vivo evaluation. Rawat MK, Jain A and Singh S, Journal of Pharmaceutical Sciences, 2011, volume 100, issue 6, pages 2366-2378 A solid lipid nanoparticle is typically spherical with an average diameter between 10 and 1000 nanometers.
One study attempted to address this problem by comparing the qualities of collagen scaffolding from three different animal sources: pig skin, rat tail, and duck feet. Other studies also faced detachment issues due to contraction, which can problematic considering that the process of full skin differentiation can take up to several weeks. Contraction issues have been avoided by replacing collagen scaffolding with a fibrin-based dermal matrix, which did not contract. Greater differentiation and formation of cell layers was also reported in microfluidic culture when compared to traditional static culture, agreeing with earlier findings of improved cell-cell and cell-matrix interactions due to dynamic perfusion, or increased permeation through interstitial spaces due to the pressure from continuous media flow.
Size-exclusion chromatography (SEC), also known as molecular sieve chromatography, is a chromatographic method in which molecules in solution are separated by their size, and in some cases molecular weight. It is usually applied to large molecules or macromolecular complexes such as proteins and industrial polymers. Typically, when an aqueous solution is used to transport the sample through the column, the technique is known as gel-filtration chromatography, versus the name gel permeation chromatography, which is used when an organic solvent is used as a mobile phase. The chromatography column is packed with fine, porous beads which are composed of dextran polymers (Sephadex), agarose (Sepharose), or polyacrylamide (Sephacryl or BioGel P). The pore sizes of these beads are used to estimate the dimensions of macromolecules.
K+ ion permeation occurs at the upper selectivity filter region of the pore, while pH gating rises from the protonation of transmembrane helices at the end of the pore. At low pH, the M2 helix is protonated, shifting the ion channel from closed to open conformation. As ions flow through the channel, voltage gating mechanisms are thought to induce interactions between Glu71 and Asp80 in the selectivity filter, which destabilize the conductive conformation and facilitate entry into a long-lived nonconducting state that resembles the C-type–inactivation of voltage- dependent channels. In the nonconducting conformation of KcsA at pH 7, K+ is bound tightly to coordinating oxygens of the selectivity filter and the four TM2 helices converge near the cytoplasmic junction to block the passage of any potassium ions.
The Fukushima Daiichi Tracker (FDT) was proposed to make a few months of muon measurements to show the distribution of the reactor cores. In December 2014, Tepco reported that they would be using two different muon imaging techniques at Fukushima, "Muon scanning method" on Unit 1 (the most badly damaged, where the fuel may have left the reactor vessel) and "Muon scattering method" on Unit 2. The International Research Institute for Nuclear Decommissioning IRID in Japan and the High Energy Accelerator Research Organization KEK call the method they developed for Unit 1 the muon permeation method; 1,200 optical fibers for wavelength conversion light up when muons come into contact with them. After a month of data collection, it is hoped to reveal the location and amount of fuel debris still inside the reactor.
At a molecular level, Na+ ions stabilize amino acid binding at the substrate site and also hold the transporter in an outward-open conformation that allows substrate binding. The role of the Cl− ion in the symport mechanism has been proposed to be for stabilizing the charge of the symported Na+. After ion and substrate binding have taken place, some conformational change must occur. From the conformational differences between the structure of TMs 1-5 and that of TMs 6-10, and from the identification of a substrate permeation pathway between the binding site of SERT and the cytoplasm, a mechanism for conformational change was proposed in which a four-helix bundle composed of TMs 1, 2, 6 and 7 changes its orientation within the rest of the protein.
If the Mark–Houwink–Sakurada constants K and α are known (see Mark–Houwink equation), a plot of log [η]M versus elution volume (or elution time) for a particular solvent, column and instrument provides a universal calibration curve which can be used for any polymer in that solvent. By determining the retention volumes (or times) of monodisperse polymer standards (e.g. solutions of monodispersed polystyrene in THF), a calibration curve can be obtained by plotting the logarithm of the molecular weight versus the retention time or volume. Once the calibration curve is obtained, the gel permeation chromatogram of any other polymer can be obtained in the same solvent and the molecular weights (usually Mn and Mw) and the complete molecular weight distribution for the polymer can be determined.
LY-2459989 is a silent antagonist of the κ-opioid receptor (KOR) that has been developed by Eli Lilly as a radiotracer of the aforementioned receptor, labeled either with carbon-11 or fluorine-18. It possesses high affinity for the KOR (Ki = 0.18 nM) and is highly selective for it over the μ-opioid receptor (Ki = 7.68 nM) and the δ-opioid receptor (Ki = 91.3 nM) (over 43-fold selectivity for the KOR over the other opioid receptors). LY-2459989 is a fluorine-containing analogue and follow-up compound of LY-2795050, the first- ever KOR-selective antagonist radiotracer. Relative to LY-2795050, LY-2459989 displays 4-fold higher affinity for the KOR and similar selectivity and also possesses greatly improved central nervous system permeation (brain levels were found to be 6-fold higher than those of LY-2795050).
Hyujeong (, 1520-1604), also called Seosan Daesa (서산대사, 西山大師) was a Korean Seon master. As was common for monks in this time, he travelled from place to place, living in a succession of monasteries. Buddhist monks had been forced to keep a low profile since General Yi Seonggye had been forced to eject Buddhism from its state of total permeation of government in order to gain the support of Neo-Confucian scholar-officials to consolidate his position against his Buddhist political opponents when he overthrew Gongyang of Goryeo in 1392 to become King Taejo of Joseon. Before ever having tested his hand as a military commander, Hyujeong was a first-rate Seon master and the author of a number of important religious texts, the most important of which is probably his Seongagwigam (), a guide to Seon practice studied by Korean monks even today.
The stabilization problem is claimed to be solved by replacing the organic transport layer with a metal oxide layer, allowing the cell to retain 90% capacity after 60 days. Besides, the two instabilities issues can be solved by using multifunctional fluorinated photopolymer coatings that confer luminescent and easy-cleaning features on the front side of the devices, while concurrently forming a strongly hydrophobic barrier toward environmental moisture on the back contact side. The front coating can prevent the UV light of the whole incident solar spectrum from negatively interacting with the PSC stack by converting it into visible light, and the back layer can prevent water from permeation within the solar cell stack. The resulting devices demonstrated excellent stability in terms of power conversion efficiencies during a 180-day aging test in the lab and a real outdoor condition test for more than 3 months.
Chiau also participated in the deliberation process of《Special Statute for the Comprehensive Management of River Basins》, which was officially passed on January 14, 2014. This statute encompasses the key issues throughout all the national territories, with overall planning of up, mid and downstream waters. Chiau advocates and stresses that the watercourses can be controlled by both subtle and rigid means to increase permeation spaces and those of retention basins or green areas. With comprehensive watercourse controls, measures against climate change can be employed with the assistance of public participation to prepare plans and determine the optimal means for future watercourse control. In Taiwan, an island regularly suffering from either floods or drought, the focus shall not be solely on watercourse control, but rather the creation of a “water conservation oriented society” with introspective national land planning and water resource management that will not accept a single moment's delay.
He worked in different positions, by the end as Vice Director, in the fields of gas adsorption, heterogeneous catalysis and membrane permeation. In 1989 he has got the title Dr. sc. nat. with a thesis on the influence of mass transport in zeolite catalysis. After the closure of the Academy of Sciences by 31 December 1991, Caro founded the research group „Nano-Composites“. This group was the germ cell of the Department of „Functional materials“ in the newly founded Institute of Applied Chemistry (ACA). Under the directorship of Manfred Baerns, Caro was one of the deputy directors at ACA with responsibility for the research field „Reaction engineering and new materials“. In 1992 Caro made his habilitation at Leipzig University on adsorption and catalysis in nanoporous materials and got the title Dr. sc. nat. habil. In 2001 Caro became W3-Professor for Physical Chemistry at Hannover University, the later Leibniz University Hannover.
Human rights in Central Asia have received less attention from media in recent years following the outbreak of conflict with Western powers than previous decades, but that is not to say that they are completely overlooked on the international stage by international governmental organizations or non- governmental organizations. Local interest in the adoption and upholding of human rights has also been relatively minimal, with proposed international governmental organizations (IGOs) such as the Central Asian Union (CAU) choosing to focus on other issues such as security, economic development, and cultural permeation. Central Asia Central Asia has many human rights issues that plague the lives of its citizens. For example, Human Rights Watch has compiled numerous reports with aims of drawing attention to the fact that Afghanistan remains in a state of conflict, seeing citizen death tolls either stay high or slowly grow; general safety of citizens is an uncertainty in Afghanistan, with human rights violations including torture, unlawful detainment, etc.
Repair principles which do not improve the strength or performance of concrete beyond its original (undamaged) condition include: replacement and restoration of concrete after spalling and delamination; strengthening to restore structural load-bearing capacity; and increasing resistance to physical or mechanical attack. Repair principles for arresting and preventing further degradation include: control of anodic areas; cathodic protection, cathodic control; increasing resistivity; preserving or restoring passivity; increasing resistance to chemical attack; protection against ingress of adverse agents; and moisture control. Techniques for filling holes left by the removal of spalled or damaged concrete include: mortar repairs; flowing concrete repairs and sprayed concrete repairs. The filling of cracks, fissures or voids in concrete for structural purposes (restoration of strength and load-bearing capability), or non-structural reasons (flexible repairs where further movement is expected, or alternately to resist water and gas permeation) typically involves the injection of low viscosity resins or grouts based on epoxy, PU or acrylic resins, or micronised cement slurries.
The show addresses topics such as the legitimacy of online media, the state of Canadian film and television industry, Canadian culture versus American culture, advertising and its permeation of the social fabric, as well as the 2010 Toronto mayoral elections. The series featured one-one-one interviews with Colin Mochrie, Geoff Lapaire and Jarett Cale (the creators of the popular online series turned Showcase television series Pure Pwnage), mayoral candidates of Toronto's Mayor Elections 2010 George Smitherman and Joe Pantalone, Jennifer Hollett of CBC's Connect with Mark Kelley, Journalist with the Real News Network Jesse Freeston, artists and activists Posterchild and Sean Martindale, as well as then-Mayor of Toronto David Miller. Musical guests of the show included Hooded Fang and Anna Cyzon. Truth Mashup's coverage of the launch of Sun News Network and said network's right wing bias was covered by various media including The Grid Magazine (Toronto) and The Georgia Straight (Vancouver), TV-eh podcast and CIUT's Vibe Collective.
TRPA1 can be considered to be one of the most promiscuous TRP ion channels, as it seems to be activated by a large number of noxious chemicals found in many plants, food, cosmetics and pollutants. Activation of the TRPA1 ion channel by the olive oil phenolic compound oleocanthal appears to be responsible for the pungent or "peppery" sensation in the back of the throat caused by olive oil. Although several nonelectrophilic agents such as thymol and menthol have been reported as TRPA1 agonists, most of the known activators are electrophilic chemicals that have been shown to activate the TRPA1 receptor via the formation of a reversible covalent bond with cysteine residues present in the ion channel. For a broad range of electrophilic agents, chemical reactivity in combination with a lipophilicity enabling membrane permeation is crucial to TRPA1 agonistic effect. A dibenz[b,f][1,4]oxazepine derivative substituted by a carboxylic methylester at position 10 has been reported to be a potent TRPA1 agonist (EC50 = 0.13μM or pEC50 = 6.90).

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