The carcinogenic potentials of 40 National Toxicology Program chemicals previously predicted by Computer Optimised Molecular Parametric Analysis for Chemical Toxicity (COMPACT), based on the identification of potential substrates of cytochromes P4501A and 2E (CYP1A and CYP2E), have been compared with new rodent carcinogenicity results. The COMPACT predictions have also been compared with publis...

Reproducibility of reading "N-Multistix" dipsticks by a semi-automated urinalysis instrument (Ames' "Clini-Tek") has been described for artifically prepared samples. Glucose, ketone, urobilinogen, and nitrite showed high reproducibility (greater than 90%) for reading multiple samples at predetermined analyte concentrations. Determination of proteinuria showed the lowest proportion of false posi...

Municipal wastewaters may contain a variety of genotoxic compounds, including drugs or their metabolites, PAHs, etc. Bacterial genotoxicity assays use DNA impairment as end point while micronucleus tests, conducted on eucaryotes, assess chromosome aberrations. As relatively few comparative studies exist, in this study results of the micronucleus test using the painter’s mussel (Unio pictorum) a...

Sister-chromatid exchange (SCE) and chromosome aberrations (CA) in bone marrow cells were analyzed after in vivo exposure in mice to 4 aliphatic epoxides, namely 1-naphthyl glycidyl ether (NGE), 1-naphthyl propylene oxide (NPO), 4-nitrophenyl glycidyl ether (NPGE) and trichloropropylene oxide (TCPO). These compounds were selected as being among the most mutagenic aliphatic epoxides in our previ...

En la presente aportación se presentan los principales resultados y conclusiones del Mapa sociolingüístico escolar de Ames, elaborado por el Seminario Sociolingüística Real Academia Galega. Los primeros enmarcan en situación sociolingüística general Galicia, las segundas evolución política lingüística gobiernos autónomos gallegos y, más concreto, lo relativo a presencia gallego educación. estud...

a Ocean Sciences Department, 1156 High Street, University of California Santa Cruz, Santa Cruz, CA, USA b ORAU/NASA Ames Research Center, M.S. 245-4, Bldg. 245, Rm. 120, PO Box 1, Moffett Field, CA 94035, USA c Department of Atmospheric, Ocean, and Space Sciences, University of Michigan, USA d Applied Math and Computer Science, Emory University, Atlanta, GA, USA e Earth Science Division, NASA A...

1 Leading Researcher, MCT, Inc., NASA Ames Research Center, Moffett Field, CA, 94035, USA. 2 Associate Scientist, Intelligent Systems Division, NASA Ames Research Center, Moffett Field, CA 94035, USA. AIAA Member. 3 Associate Professor, Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, NJ, 07102, USA. 4 Professor, Physics Department, South Dakota School of Mines a...

An idealized model for turbulent ames is introduced It consists of a scalar advection reaction di usion equation that describes the inter action of a thin ame with a turbulent like ow eld acting on two separate scales Rigorous asymptotic results as well as a ordable and reliable direct numerical simulations are available to describe the e ec tive large scale behavior of the idealized front a st...