English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

If the large-angular-scale anisotropy in the cosmic microwave backgroundradiation is caused by the long-wavelength cosmological perturbations ofquantum mechanical origin, they are, most likely, gravitational waves, ratherthan density perturbations or rotational perturbations.Comment: 53 pages, RevTeX, WUGRAV-94-4, (Received by Phys. Rev. D on March 17,  1994

Density perturbations of quantum-mechanical origin and anisotropy of the microwave background