The autism spectrum disorders (ASDs) are a group of conditions characterized by impairments
in reciprocal social interaction and communication, and the presence of restricted and …

Watersheds are complex mosaics of habitats whose conditions vary across space and time
as landscape features filter overriding climate forcing, yet the extent to which the reliability of …

Major ion compositions of primary fluid inclusions from terminal Proterozoic (ca. 544 Ma) and
Early Cambrian (ca. 515 Ma) marine halites indicate that seawater Ca 2+ concentrations …

In any assessment of potential terrorist attacks, the nuclear threat takes center stage. Although
weapons-grade nuclear materials arc heavily guarded, a plausible scenario involves …

In 2007, the Energy Independence and Security Act (Public Law 110–140) authorized the US
Geological Survey (USGS) to conduct a national assessment of potential geologic storage …

Rare copy-number variation (CNV) is an important source of risk for autism spectrum
disorders (ASDs). We analyzed 2,446 ASD-affected families and confirmed an excess of genic …

The Stardust spacecraft collected thousands of particles from comet 81P/Wild 2 and returned
them to Earth for laboratory study. The preliminary examination of these samples shows …

Although autism spectrum disorders (ASDs) have a substantial genetic basis, most of the
known genetic risk has been traced to rare variants, principally copy number variants (CNVs). …

The bulk of the comet 81P/Wild 2 (hereafter Wild 2) samples returned to Earth by the Stardust
spacecraft appear to be weakly constructed mixtures of nanometer-scale grains, with …

Systematic changes in the chemistry of evaporated seawater contained in primary fluid
inclusions in marine halites indicate that seawater chemistry has fluctuated during the …