The distribution of an arbuscular mycorrhizal (AM) fungus between soil and roots, and between mycelial and storage structures, was studied by use of the fatty acid signature 16:1(omega)5. Increasing the soil phosphorus level resulted in a decrease in the level of the fatty acid 16:1(omega)5 in the soil and roots. A similar decrease was detected by microscopic measurements of root colonization a...

As the global human population and associated anthropogenic activities rapidly increase, so does areal extent of disturbed soils. Regulatory frameworks must incorporate reclamation criteria management options for these soils, requiring consistent descriptions interpretations. Many human-altered soils cannot be classified using current Canadian System Soil Classification (CSSC), thus an Anthropo...

BACKGROUND Latent class analysis (LCA) is increasingly being used in health research, but optimal approaches to handling complex clinical data are unclear. One issue is that commonly used questionnaires are multidimensional, but expressed as summary scores. Using the example of low back pain (LBP), the aim of this study was to explore and descriptively compare the application of LCA when using ...

Subgroups H1 and H2 of a group G are said to be locally conjugate if there is a bijection f : H1 → H2 such that h and f(h) are conjugate in G. We study local conjugacy among subgroups of GL2(Z/pZ), where p is an odd prime, building on Andrew Sutherland’s categorizations of subgroups of GL2(Z/pZ) and local conjugacy among them. We obtain a classification of locally conjugate subgroups of GL2(Z/p...

Bench-scale laboratory experiments were conducted to evaluate the effectiveness of air stripping for in situ remediation of benzene-contaminated soils. Several parametric studies were performed to evaluate the effect of soil grain size, air injection flow rate, and air inlet temperature on the benzene recovery efficiency. An increase in soil grain size produced a significant increase in benzene...

fying landscape attributes which are believed to contain similar soils (Hudson, 1992). “Landscape position” can The key Soil Taxonomy is based upon the idea that certain properbe considered to be a geographic approach to classificaties can be used to define populations of soils from the soil continuum. tion, in which combinations of surficial and stratigraphic The soil mapping paradigm is that ...

As salt-affected soils (SAS) are widespread in Hungary, several classification schemes have been proposed for them during the last centuries. These soils are inherently related to soil salinity/sodicity/alkalinity and the consequential hydrophysical properties of the soil; therefore, they present severe abiotic stress for plants and animals. Based on the approach of the assessment of the soil, ...

Data concerning serological classification of spiroplasmas are in good agreement, but slightly different numerical designations have been given to existing groups. It is proposed that a standardized system be adopted based on information developed mainly by the IRPCM working team on spiroplasmas. The type species (Spiroplasma citri) should be redefined to include only the agent of citrus stubbo...

Microbial breakthrough curves of 12 soils, generated by the application of dairy shed effluent followed by continuous artificial rainfall for one pore volume at 5 mm h(-1) onto large undisturbed soil cores, have been ranked as high, medium, or low potential for microbial bypass flow. The ranking is based on the position of the peak in the breakthrough curve. Knowledge of soil properties that af...