Amplification and predominant periods of soils in Düzce Basin were investigated by analysing the data sets last two major earthquakes aftershocks Kocaeli occurred 1999 with a magnitude Mw:7.4 Mw:7.2, respectively. Two different methods named horizontal/vertical spectral acceleration ratio (HVSAR) soil-to-rock Response Spectral Acceleration Ratio (RSAR) used to determine soil amplifications for ...

Prion sorption to soil is thought to play an important role in the transmission of scrapie and chronic wasting disease (CWD) via the environment. Sorption of PrP to soil and soil minerals is influenced by the strain and species of PrP(Sc) and by soil characteristics. However, the ability of soil-bound prions to convert PrP(c) to PrP(Sc) under these wide-ranging conditions remains poorly underst...

Contour maps of site amplification at long periods (3–10 s), estimated from recorded ambient noise in San Fernando Valley, are compared with simple indicators of the strong motion amplitudes and damage from the 1994 Northridge, CA, earthquake. The results show that there is no simple correlation between these two sets of observations. Ambient noise measurements have been successful in identifyi...

Random amplified polymorphic DNA (RAPD) analysis was used to evaluate genetic diversity among 13 soil Penicillium strains originating from widely dispersed areas. Twenty one of the 34 synthetic random primers were found to identify polymorphism in amplification products. The results show a high level of diversity of RAPD markers among the strains. All the strains could be identified by their ch...

AIMS To evaluate the suitability of a multiplex PCR-based assay for sensitive and rapid detection of Escherichia coli O157:H7 in soil and water. METHODS AND RESULTS Soil and water samples were spiked with E. coli O157:H7 and subjected to two stages of enrichment prior to multiplex PCR. Detection sensitivities were as high as 1 cfu ml(-1) drinking water and 2 cfu g(-1) soil. Starvation of E. c...

Free-living nitrogen-fixing prokaryotes (diazotrophs) are ubiquitous in soil and are phylogenetically and physiologically highly diverse. Molecular methods based on universal PCR detection of the nifH marker gene have been successfully applied to describe diazotroph populations in the environment. However, the use of highly degenerate primers and low-stringency amplification conditions render t...