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We have investigated the regions of cosmic microwave background maps from the Planck experiment in the neighborhoods of radio sources from the RCR catalog. Based on the measurements of sources from the Planck catalog, we have constructed the calibration curves to determine the brightness of objects. For 34 steep-spectrum objects, for the first time we have estimated the flux densities at millimeter and submillimeter wavelengths, constructed the spectra, made identifications, and gathered information available in databases. Faint, difficult-to-clean, microwave sources make an additional contribution to the secondary anisotropy on angular scales <7′. [ABSTRACT FROM AUTHOR]

We compute the predictions for the power spectrum of scalar perturbations from a recent new proposal for the effective Hamiltonian of loop quantum cosmology. The model provides an attractive picture of the early cosmos, in which our classical Friedmann-Lemaître-Robertson-Walker universe emerges from a quantum phase where the spacetime curvature remains constant and of Planckian size. We compare the predictions for the cosmic microwave background with previous results obtained within loop quantum cosmology, and discuss the differences and similarities. The analysis provides an example of the way differences between quantization schemes can be translated to physical observables. [ABSTRACT FROM AUTHOR]