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A nicotine-degrading bacterium, strain HF-1, was isolated from tobacco waste-contaminated soil and identified as a member of Pseudomonas sp. based on morphology, physiological tests, Vitek system (GN+), Biolog GN, 16S rDNA sequence and phylogenetic characteristics. The thermal denaturation test indicated that the G+C content of the DNA of HF-1 was 62.7(More)
A combination of pharmacological and genetic approaches was used to determine the role of type 4 cAMP-specific cyclic nucleotide phosphodiesterase 4 (PDE4) in reversing alpha(2)-adrenoceptor-mediated anesthesia, a behavioral correlate of emesis in non-vomiting species. Among the family-specific PDE inhibitors, PDE4 inhibitors reduced the duration of(More)
We report carbon mass balance and kinetic data for the total oxidation of cells, spores, and biomolecules deposited on illuminated titanium dioxide surfaces in contact with air. Carbon dioxide formation by photocatalytic oxidation of methanol, glucose, Escherichia coli, Micrococcus luteus, Bacillus subtilis (cells and spores), Aspergillus niger spores,(More)
MicroRNAs (miRNAs) are small, noncoding RNAs that regulate gene expression posttranscriptionally. We investigated the hypothesis that bone morphogenetic protein (Bmp) signaling regulates miRNAs in cardiac progenitor cells. Bmp2 and Bmp4 regulate OFT myocardial differentiation via regulation of the miRNA-17-92 cluster. In Bmp mutant embryos, myocardial(More)
A survey, in the form of a questionnaire, of energy consumption patterns in rural residential households in the rural fringe of the Xian city was undertaken during the winter of 2003/2004. More than 200 households were sampled during the survey. Fuel consumption state, including biomass fuels for cooking and space heating, is investigated. The types of(More)
Type 4 cyclic nucleotide phosphodiesterases (PDE4s) are metallo-hydrolases which specifically hydrolyze cAMP to AMP in various cells types. The catalytic core is a bimetallic ion center composed of a tightly bound Zn(2+) and a loosely bound Mg(2+), which plays a dictating role in eliciting cAMP binding and catalysis activation. An invariant glutamine(More)
When exposed to near-UV light, titanium dioxide (TiO2) exhibits a strong bactericidal activity. However, the killing mechanism(s) underlying the TiO2 photocatalytic reaction is not yet well understood. The aim of the present study is to investigate the cellular damage sites and their contribution to cell death. A sensitive approach using o-nitrophenol(More)
.......................................................................................................................... 2 Introduction .................................................................................................................... 2(More)