… C, an isotope common in nature, and 239 Pu, a naturally rare isotope. The Holocene segment
of the IntCal13 Δ 14 C curve, corrected for radiogenic decay (F 14 C… in the 14 C production …

Bacteria communicate with one another using chemical signal molecules. As in higher
organisms, the information supplied by these molecules is critical for synchronizing the activities …

The MAVEN spacecraft launched in November 2013, arrived at Mars in September 2014,
and completed commissioning and began its one-Earth-year primary science mission in …

Gravitational waves were discovered with the detection of binary black-hole mergers 1 and
they should also be detectable from lower-mass neutron-star mergers. These are predicted to …

The term Anthropocene, proposed and increasingly employed to denote the current interval
of anthropogenic global environmental change, may be discussed on stratigraphic grounds. …

We evaluate the boundary of the Anthropocene geological time interval as an epoch, since it
is useful to have a consistent temporal definition for this increasingly used unit, whether the …

We have demonstrated that immediate early genes can be differentially activated within the
central nervous system. We examined the effects of tetanic stimulation in the hippocampus …

Alzheimer disease (AD) is the most common dementing illness in the elderly, but there is
equivocal evidence regarding the frequency of other disorders such as Lewy body disease (…

Pan-STARRS1 has carried out a set of distinct synoptic imaging sky surveys including the $3\pi$
Steradian Survey and the Medium Deep Survey in 5 bands ($grizy_{P1}$). The mean 5…

… That was some 4 orders of magnitude more abundant than in the contaminated surface
waters above. Even the Indian Ocean seamounts, which showed the lowest abundances, were …