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- Ama, CSA, Endocrine, Rupress, Csh, Aacr, Gale, Highwire, Aaas, Proquest, Jstor, Ovid, and Nephrology
Predation risk affects reproductive physiology and demography of elk.
Elk (Cervus elaphus) in the Greater Yellowstone Ecosystem alter patterns of aggregation, habitat selection, vigilance, and foraging in the presence of wolves (Canis lupus). Antipredator behaviors like these can reduce predation risk but are also likely to carry costs. Data from five elk populations...
Top heart lab comes under fire.
Electro-optical frequency division and stable microwave synthesis.
We demonstrate optical frequency division and microwave generation by using a tunable electrical oscillator to create dual combs through phase modulation of two optical signals that have a stable difference frequency. Phase-locked control of the electrical oscillator by means of optical frequency di...
Human tRNA synthetase catalytic nulls with diverse functions.
We chose aminoacyl tRNA synthetases (AARSs). They are exceptional in their progressive and accretive proliferation of noncatalytic domains as the Tree of Life is ascended. Here we report discovery of a large number of natural catalytic nulls (CNs) for each human AARS. Splicing events retain noncatal...
Tell the negative committee to shut up.
End of AIDS--hype versus hope.
Imaging techniques. Ultrafast low-energy electron diffraction in transmission resolves polymer/graphene superstructure dynamics.
We have developed ultrafast low-energy electron diffraction and investigate in transmission the structural relaxation in a polymer/graphene bilayer system excited out of equilibrium. The laser-pump/electron-probe scheme resolves the ultrafast melting of a polymer superstructure consisting of folded-...
This Week's Section.
Atmospheric science. Methane on the rise--again.
Genetics. A unified process for neurological disease.