Foam pyrenes. Medical search. Frequent questions

11,1 2 In a rare gene-environment autism study, genetically susceptible mice exposed to the polycyclic aromatic hydrocarbon benzo(a)pyrene while pregnant developed offspring with behavioral deficits and with decreased expression of the MET gene, a suspected autism risk gene. (mindspec.org)
PAH's such as benzo[a]pyrene, are well known for their high carcinogenity. (com.ng)
It was found that the concentration of oil in the soil of 200 g/kg and above has a toxic effect on microorganisms: the toxicity index was 38 units, the decomposition rate of benzo [a] pyrene significantly decreases. (rudn.ru)

PAHs (Polycyclic Aromatic Hydrocarbons) that are frequently known as semi-volatile organic compounds (this contains Flourene, Pyrene, Napthalene and many more).The year 2018 might go down in history as the heyday of mattresses, an age in which hundreds of brands vied for our interest each in retailers and online. (wikidot.com)

Halogenated flame-retardant concentrations in settled dust, respirable and inhalable particulates and polyurethane foam at gymnastic training facilities and residences. (vims.edu)

Pyrene, the smallest two-dimensional mesh of aromatic rings, with various terminal thiol substitutions, has been considered as a potential molecular interconnect. (tcd.ie)

The CMC (critical micelle formation concentration) was calculated according to the pyrene method and detected by UV spectroscopy at 25°C. The very low CMC is another market advantage of the gemini surfactant. (degruyter.com)
The ability of the synthesized gemini surfactant to wet and foam and the emulsification index at different pH values were tested. (degruyter.com)
A model system for theory and experiment which is relevant to foam fractionation consists of a column of foam moving through an inverted U-tube between two pools of surfactant solution. (tcd.ie)

For develop of new rapid test-reaction used the ability of baker's yeast S. cerevisiae, as a yeast of fermentation, was used to form a foam on the surface of the fermentation liquid. (rudn.ru)
The advantages of the test reaction for suppressing the foaming activity of yeast are technical simplicity, express (a test of response is 15 min), minimal material costs, no need for special microbiological equipment, culture media, maintaining the culture in a viable condition. (rudn.ru)

Study of Biochemical Pathways and Enzymes Involved in Pyrene Degradation by Mycobacterium sp. (opsdiagnostics.com)

Foaming activity of theyeast was more sensitive to the tested toxicants in comparison with the growth function ofyeastand their survival. (rudn.ru)

It was then decided that the we would visit the Pyrene Company in England which was in the process of building the G-19 Foam Crash Tenders. (cahs.ca)

In 1905 - Alexander Laurant invented a chemical foam extinguisher. (articlesfactory.com)

More aged than unaged anthracene remained in Lima foam following introduction of earthworms (Eisenia foetida), a mixed culture containing anthracene-degrading microorganisms, or earthworms or wheat after bacterial biodegradation of the compound. (nih.gov)
The uptake of aged and unaged anthracene, fluoranthene, and pyrene by earthworms was correlated with the amounts recovered from soil by mild extraction with n-butanol, propanol, and ethyl acetate (r values in the range 0.911- 0.992). (nih.gov)

Aging of fluoranthene and pyrene decreased the amount removed by mild extraction with n-butanol, ethyl acetate, and propanol. (nih.gov)

[ 17 ] The personal air-sampling pumps operated continuously over this period, collecting vapors and particles up to 2.5 µm in aerodynamic diameter on a quartz microfiber filter and a polyurethane foam cartridge backup. (medscape.com)
Comparison of polyurethane foam and XAD-2 sampling matrices to measure airborne organophosphorus pesticides and their oxygen analogs in an agricultural community. (nih.gov)

In 1912 - Carbon tetrachloride extinguishers were invented by Pyrene. (articlesfactory.com)
In 1910, The Pyrene Manufacturing Company of Delaware filed a patent for using carbon tetrachloride to extinguish fires. (fireextinguisherservices.com.au)

Fire fighting equipment was provided by The Pyrene Company Limited. (wikipedia.org)

Influence of spatial restrictions on equilibrium reactions: a case study about the excimer formation of pyrene. (mpg.de)
Such physical constraints may include the formation of scum layers, foaming, and mixing inefficiencies due to the viscosity of the feedstock. (celignis.com)

A new experimental methodology to measure the drainage and lifetime of foams. (mpg.de)