In a previous paper (31) the temporary depletion of the granular substance of the dermal mast cells was reported, following the application oI benzene to the skin of mice. This reaction failed in response to alcohol, ether, and acetone. Continued studies indicate that a similar reaction on the part of the tissue mast cells can be elicited by some other aromatic hydrocarbons, and is herein descr...

In a previous paper (31) the temporary depletion of the granular substance of the dermal mast cells was reported, following the application oI benzene to the skin of mice. This reaction failed in response to alcohol, ether, and acetone. Continued studies indicate that a similar reaction on the part of the tissue mast cells can be elicited by some other aromatic hydrocarbons, and is herein descr...

OBJECTIVE To develop a strategy for water quality monitoring for the presence of genotoxins and polycyclic aromatic hydrocarbons. METHODS A study was carried out in Santos estuary, Southern Brazil, in 2002. Two sampling sites with different concentration levels were selected and evaluated in different samplings using blue rayon hanging technique, chemical analyses, and Salmonella/microsome as...

The variable Zagreb (v)M(2) index is introduced and applied to the structure-boiling point modeling of benzenoid hydrocarbons. The linear model obtained (the standard error of estimate for the fit model S(fit)=6.8 degrees C) is much better than the corresponding model based on the original Zagreb M2 index (S(fit)=16.4 degrees C). Surprisingly,the model based on the variable vertex-connectivity ...

We develop a theoretica ernant hydrocarbons. It atoms separated by two the bond dissociation en atoms in both open and dinger equation to stud

In a previous paper (31) the temporary depletion of the granular substance of the dermal mast cells was reported, following the application oI benzene to the skin of mice. This reaction failed in response to alcohol, ether, and acetone. Continued studies indicate that a similar reaction on the part of the tissue mast cells can be elicited by some other aromatic hydrocarbons, and is herein descr...

The photochemical C-H activation reactions of eta(3)-TpRh(CO)(2) (Tp = HB-Pz(3), Pz = 3,5-dimethylpyrazolyl) and CpRh(CO)(2) (Cp = C(5)H(5)) have been studied in a series of linear, cyclic, and aromatic hydrocarbon solvents on a femtosecond to microsecond time scale. These results have revealed that the structure of the hydrocarbon substrate affects the final C-H bond activation step, which is ...

New research is presented, and previous research is reviewed, on the emission and absorption of interstellar aromatic hydrocarbons. Emission from aromatic hydrocarbons dominates the mid-infrared emission of many galaxies, including our own Milky Way galaxy. Only recently have aromatic hydrocarbons been observed in absorption in the interstellar medium, along lines of sight with high column dens...