3D computer simulations and experiments are employed to study random packings of
compressible spherical grains under external confining stress. In the rigid ball limit, we find a …

Experiments on isotropic compression of a granular assembly of spheres show that the shear
and bulk moduli vary with the confining pressure faster than the 1∕ 3 power law predicted …

Experimentally it is known that the bulk modulus K and shear modulus μ of a granular
assembly of elastic spheres increase with pressure p faster than the p 1/3 law predicted by …

The cortico–basal ganglia–thalamo–cortical loop is one of the fundamental network motifs
in the brain. Revealing its structural and functional organization is critical to understanding …

A spectrophotometric method is presented for the determination of arsenite, arsenate, and
phosphate in fresh and salt waters. By the use of an oxidizing and a reducing reagent, these …

On a community basis, urban soil contains a potentially large reservoir of accumulated lead.
This study was undertaken to explore the temporal relationship between pediatric blood …

The critical nanoaggregate concentration (CNAC) of asphaltenes in toluene has been studied
by a variety of methods recently. Here, we explore low-frequency electrical impedance …

The accumulation of substances associated with PM 2.5 [polycyclic aromatic hydrocarbons (PAHs)
and metals] on leaves of Pyrus calleryana (pear) and Tilia×euchlora (linden) along …

Inadvertent soil ingestion, especially by young children, can be an important route of exposure
for many environmental contaminants. The introduction of exterior soil into the interior …

BACKGROUND: The potential risks associated with “toilet plume” aerosols produced by flush
toilets is a subject of continuing study. This review examines the evidence regarding toilet …