The adsorption of DNA by an andosol was much greater than that by a fluvisol or acrisol. The decrease in soil organic matter on treatment with hydrogen peroxide (H(2)O(2)) little affected DNA adsorption per weight of the particles, implying that the organic matter is not involved in the adsorption. The acid oxalate treatment of the H(2)O(2)-treated soils decreased DNA adsorption. Among soil con...

Coherent diffractive imaging using a coherent X-ray source promises to be a useful microscopic method for imaging noncrystalline objects at high spatial resolution. In this article a simple method to estimate the coherently scattered signal as a function of resolution is presented, and it is shown that the required X-ray flux or dose scales as the inverse third power of resolution for a specime...

The adsorption of DNA by an andosol was much greater than that by a fluvisol or acrisol. The decrease in soil organic matter on treatment with hydrogen peroxide (H2O2) little affected DNA adsorption per weight of the particles, implying that the organic matter is not involved in the adsorption. The acid oxalate treatment of the H2O2-treated soils decreased DNA adsorption. Among soil constituent...

When a macroscopic-sized noncrystalline sample is illuminated using coherent x-ray radiation, bifurcation of photon energy flow may occur. The coarse-grained complex refractive index the be considered to attenuate and refract incident beam, leading component transmitted beam. Spatially unresolved microstructure, associated with fine-grained components index, introduces diffuse This photon-scatt...

Processes active within buoyant hydrothermal plumes are expected to modulate the flux of elements, such as Fe, deep ocean; however, they yet be described in a comprehensive manner through observations or models. In this study, we compare observed particulate Fe (pFe) speciation with thermodynamic (equilibrium) reaction path modeling for three vent fields Eastern Lau Spreading Center (ELSC). At ...