Search Within
Applied Filters:
Showing 1-18 of 18 results for "


" within Papers
Synthesis and characterization of linear aliphatic poly (methylene dicarboxylate) s from caesium dicarboxylates and bromochloromethane.
Cimecioglu AL and East GC.
Makromol. Chem., 10(7), 319-324 (1989)
G W Jepson et al.
Toxicology and applied pharmacology, 144(2), 315-324 (1997-06-01)
Dermal absorption of organic chemicals from aqueous solutions are a concern in both the workplace and the home. Organic chemicals are generally not very soluble in water and the exposure may never reach steady state because the concentration of chemical
J N McDougal et al.
Toxicology and applied pharmacology, 85(2), 286-294 (1986-09-15)
Absorption of chemical vapors through the skin is a passive process that is not easily quantitated, but may be important in the assessment of health hazards in some occupational circumstances. Physiological modeling is a quantitative technique which may provide insight
G W Jepson et al.
Toxicological sciences : an official journal of the Society of Toxicology, 48(2), 180-188 (1999-06-03)
Occupational and environmental settings present opportunities for humans to come into contact with a variety of chemicals via the dermal route. The chemicals contacting the skin are likely to be diluted with a vehicle or present as a component of
J N McDougal et al.
Toxicology and applied pharmacology, 79(1), 150-158 (1985-06-15)
The dermal absorption of dibromomethane (DBM) and bromochloromethane (BCM) vapors was studied in rats placed in a specially designed chamber incorporating individual respiratory protection to avoid pulmonary uptake. Exposures (DBM: 500 to 10,000 ppm; BCM: 2500 to 40,000 ppm) lasted
W S Cuello et al.
Journal of toxicology, 2012, 629781-629781 (2012-06-22)
Bromochloromethane (BCM) is a volatile compound and a by-product of disinfection of water by chlorination. Physiologically based pharmacokinetic (PBPK) models are used in risk assessment applications. An updated PBPK model for BCM is generated and applied to hypotheses testing calibrated
Juan Li et al.
The Journal of chemical physics, 126(18), 184304-184304 (2007-05-19)
The pulsed field ionization-photoelectron (PFI-PE) spectrum of bromochloromethane (CH2BrCl) in the region of 85,320-88,200 cm-1 has been measured using vacuum ultraviolet laser. The vibrational structure resolved in the PFI-PE spectrum was assigned based on ab initio quantum chemical calculations and
M L Gargas et al.
Toxicology and applied pharmacology, 86(3), 341-352 (1986-12-01)
In vivo metabolic constants were determined in male Fischer rats for five chemicals: 1,1-dichloroethylene (1,1-DCE), diethyl ether (DE), bromochloromethane (BCM), methyl chloroform (MC), and carbon tetrachloride (CCl4). A closed recirculated exposure system was used to collect a series of uptake
R Thier et al.
Proceedings of the National Academy of Sciences of the United States of America, 90(18), 8576-8580 (1993-09-15)
Dihalomethanes can produce liver tumors in mice but not in rats, and concern exists about the risk of these compounds to humans. Glutathione (GSH) conjugation of dihalomethanes has been considered to be a critical event in the bioactivation process, and
Makoto Mitsumori et al.
The British journal of nutrition, 108(3), 482-491 (2011-11-09)
The effects of the anti-methanogenic compound, bromochloromethane (BCM), on rumen microbial fermentation and ecology were examined in vivo. Japanese goats were fed a diet of 50 % Timothy grass and 50 % concentrate and then sequentially adapted to low, mid and high
S Osterman-Golkar et al.
Chemico-biological interactions, 46(1), 121-130 (1983-08-15)
Four dihalomethanes; dichloromethane, bromochloromethane, dibromomethane and diiodomethane, have been studied with respect to their reactivities towards nucleophilic compounds of different strengths in water solution and with respect to their toxicities and mutagenic effectiveness in bacterial test systems. The correlation between
Tamas Rozgonyi et al.
The journal of physical chemistry. A, 110(34), 10251-10259 (2006-08-25)
Multiconfigurational second-order perturbation theory has been employed to calculate two-dimensional potential energy surfaces for the lowest low-lying singlet electronic states of CH2BrCl as a function of the two carbon-halogen bonds. The photochemistry of the system is controlled by a nonadiabatic
D Pankow et al.
Polish journal of occupational medicine and environmental health, 5(3), 245-250 (1992-01-01)
An oral dose of 6.2 mmoles of diachloromethane (DCM), bromochloromethane (BCM) or dibromomethane (DBM) per kg body mass yielded a maximum carboxyhemoglobin (COHb) level of about 9% (at 6 hr), 11% (at 8 hr) and 22% (at 12 hr), respectively.
Stuart E Denman et al.
FEMS microbiology ecology, 62(3), 313-322 (2007-10-24)
Methyl coenzyme-M reductase A (mcrA) clone libraries were generated from microbial DNA extracted from the rumen of cattle fed a roughage diet with and without supplementation of the antimethanogenic compound bromochloromethane. Bromochloromethane reduced total methane emissions by c. 30%, with
L Abecia et al.
Journal of dairy science, 95(4), 2027-2036 (2012-03-31)
Several technologies have been tested to reduce enteric methanogenesis, but very few have been successfully used in practical conditions for livestock. Furthermore, the consequences of reduced rumen methane production on animal performance and milk quality are poorly understood. The aim
M L Gargas et al.
Toxicology and applied pharmacology, 99(2), 344-353 (1989-06-15)
The kinetic constants of chemical metabolism are used to develop physiologically based pharmacokinetic (PB-PK) models which predict the time course distribution of volatile chemicals in mammalian systems. Gas uptake techniques have proved useful in determining kinetic constants for a variety
Gunjan Goel et al.
The British journal of nutrition, 101(10), 1484-1492 (2009-02-27)
Bromochloromethane (BCM), a halogenated methane analogue, was evaluated for its anti-methanogenic activity in both batch and continuous fermentation systems. For batch fermentation, a roughage-based substrate was incubated with mixed rumen microflora for 24 h at two concentrations of BCM (5
Leticia Abecia et al.
Frontiers in microbiology, 9, 2227-2227 (2018-10-26)
This work aimed to gain insight into the transition from milk to solid feeding at weaning combining genomics and metabolomics on rumen contents from goat kids treated with a methanogenic inhibitor (bromochloromethane, BCM). Sixteen goats giving birth to two kids
Page 1 of 1
Page 1 of 1