In the inbred C57BL/6N mouse, aryl hydrocarbon hydroxylase induction by polycyclic hydrocarbons increases rapidly in the neonatal period; this response to these pharmacological, exogenous compounds does not appear in the DBA/2N, NZW/BLN, or NZB/BLN strains. The development of the constitutive hydroxylase activity in the neonatal period is the same in all four strains. Small differences in pH op...

An experimental and numerical investigation of prevaporized n-heptane nitrogen-diluted nonpremixed flames is reported. The major objective is to provide well-resolved experimental data regarding the structure and emission characteristics of these flames, including profiles of major species (N2, O2, C7H16, CO2, CO, H2), hydrocarbon intermediates (CH4, C2H4, C2H2, C3Hx), and soot precursors (C6H6...

The metabolic interaction of aromatic hydrocarbons with cellular constituents leads to the formation of hydrocarbon-protein conjugates. Such binding has been implicated in carcinogenesis by polycyclic aromatic hydrocarbons (1). Previous evidence (2-4) has indicated that the hydrocarbon-protein conjugate can be a donor of the substituted cysteine moiety for mercapturic acid formation. S-ilrylcys...

Aliphatic and polycyclic aromatic hydrocarbon and stable and radiocarbon isotope distributions are compared for dated cores from the 1970s and 2000 for a 25-year retrospective in Lake Washington, Seattle, WA (USA). Contamination of Lake Washington sediments by petrogenic aliphatic hydrocarbons and pyrolytic polycyclic aromatic hydrocarbons via atmospheric deposition and stormwater runoff peaked...

Aryl hydrocarbon hydroxylase (AHH) activity and inducibility were examined in mitogen-stimulated cultured lymphocytes from children with acute leukemia in remission, with nonleukemic malignancies, and with no family or personal history of malignant disease. Neither morphological differences nor differences in mitogen responsiveness were observed among the three sources of cells studied. Levels ...

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the waste tyres represent a source of energy and valuable hydrocarbon products. waste tyres were pyrolysed catalytically in a batch reactor under atmospheric pressure. the effects of basic catalysts (mgo and caco3) were studied on the pyrolysis products. the distribution ratio of gas, liquid and char with mgo and caco3 were 24.4:39.8:35.8 wt % and 32.5:32.2:35.2 wt % respectively at 350°c for 2...

Marinomonas sp. strain D104 was isolated from a polycyclic aromatic hydrocarbon-degrading consortium enriched from deep-sea sediment from the Arctic Ocean. The draft genome sequence of D104 (approximately 3.83 Mbp) contains 62 contigs and 3,576 protein-encoding genes, with a G+C content of 44.8%.

The traditional methodology includes a carbon-chain shortening strategy to produce bio-jet fuel from lipids via a two-stage process with hydrogen. Here, we propose a new solution using a carbon-chain filling strategy to convert C10 terpene and lipids to jet fuel ranged hydrocarbons with aromatic hydrocarbon ingredients in the absence of hydrogen.

Novel polycyclic aromatic hydrocarbon dioxygenase gene variants were present in abundances similar to or higher than those of phnA1 from Cycloclasticus spp. at a chronically polluted subantarctic coastal marine environment in Patagonia. These novel gene variants were detected over a 6-year time span and were also present in sediments from temperate Patagonian sites.