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PFAProgressive Fast Analysis (Exxon Mobil Corp.)
PFAPresbyterian Fellowship of Australia (religious group)
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PFAPedorthic Footwear Assosciation (est. 1958; Washington, DC)
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PFAProject Finance Advisory
PFAPerfection Fresh Australia (est. 1978)
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PFAPerforming and Fine Arts (various locations)
References in periodicals archive ?
The disadvantage of paraformaldehyde is that patients suffer bouts of pain during application.
Efficacy was measured on a log scale and 6-log spore reduction in spores was observed after one hour at 55[degrees]C and after 12 hours at room temperature, making MeI a viable alternative to current fumigation techniques such as chlorine dioxide, vaporous hydrogen peroxide, paraformaldehyde, and MeBr.
The CAMs and their newly formed vascular networks were fixed in 10% paraformaldehyde solution and later embedded in paraffin.
After about 10 minutes, paraformaldehyde was loaded, and then part of the sodium hydroxide and some more water to make the solid content in the system around 50 percent were loaded.
Bis(3-phenyl-3,4-dihydro-2H-1,3-benzoxazinyl)isopropane (BA-a) or Bisphenol-a as a standard benzoxazine monomer, paraformaldehyde (99%), Tetrahydrofuran (THF), aniline (99%) and 3aminopropyltrimethoxysilane (98%) were supplied from Sigma Aldrich Co.
In this stage, 4-t-butyl-2-(N-piperdinomethyl)cyclohexanone was produced from 4- t-butyl-cyclohexanone, piperidine and paraformaldehyde according to reference one.
Generally, cells are fixed with paraformaldehyde, which stabilizes the membrane and increases its permeability, and the cells are further permeabilized with another agent (11).
For this purpose, hydroxyl-containing benzoxazine monomer was first prepared by conventional ring-forming reaction of phenol with paraformaldehyde in the presence of 6-amino-l-hexanol.
We removed the brains and postfixed them in 4 percent paraformaldehyde for 24 h, followed by incubation in cryoprotectant.
Medium was removed and cells were washed with phosphate buffered saline (PBS) and then fixed with 4% paraformaldehyde in PBS for 15 minutes.
The resin reacts with methylene donors such as formaldehyde, paraformaldehyde, hexamethylene-tetramine, hexamethoxymethylmelamine and 2-nitro-2-methyl-l-propanol to become a thermoset.