HETEROGENEITY OF RECREATIONISTS IN A PARK AND PROTECTED AREA.

Heterogeneity of recreationists in a park and protected area.

Limited information and resources have caused many parks and protected areas (PPAs) to functionally manage recreationists as a single homogeneous group, despite potential negative social and ecological consequences.We aimed to evaluate the homogeneity of recreationists at the Valentine National Wildlife Refuge (NWR) by 1) quantifying frequencies of

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Ruling out light axions: The writing is on the wall

We revisit the domain wall problem for QCD axion models with more than one quark charged under the Peccei-Quinn symmetry.Symmetry breaking during or after inflation results in the formation of a domain wall network which would cause cosmic catastrophe if it comes to dominate the Universe.The network may be made unstable by invoking a "tilt" in the

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