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Using data collected at the Pierre Auger Observatory during the past 3.7 years, we demonstrated a correlation between the arrival directions of cosmic rays with energy above 6 x 10(19) electron volts and the positions of active galactic nuclei (AGN) lying within approximately 75 megaparsecs. We rejected the hypothesis of an isotropic distribution of these(More)
The ability to discriminate between scenes under different illuminations may provide insight into how the visual system represents and perhaps discounts changes in illumination (Pearce et al. 2014). Here we examine whether there is an interaction between sensitivity to illumination changes in different chromatic directions and the chromaticity of the(More)
The neutron-rich isotopes of cadmium up to the N=82 shell closure have been investigated by high-resolution laser spectroscopy. Deep-uv excitation at 214.5 nm and radioactive-beam bunching provided the required experimental sensitivity. Long-lived isomers are observed in (127)Cd and (129)Cd for the first time. One essential feature of the spherical shell(More)
Characterizing humans' ability to discriminate changes in illumination provides information about the visual system's representation of the distal stimulus. We have previously shown that humans are able to discriminate illumination changes and that sensitivity to such changes depends on their chromatic direction. Probing illumination discrimination further(More)
Laser spectroscopy of cadmium isotopes confirms the applicability of the nuclear shell model, even for very complex structures. Atomic nuclei are finite many-body systems governed by the laws of quantum mechanics. The quest for a thorough understanding of the quantum structure of nuclei is far from finished, even after some seventy years of investigation ,(More)
17. We calculated three-dimensional backward trajecto-ries every three hours, ending 30 m and 500 m above the measurement site. 20. The principle of trajectory statistics is to attribute measured pollutant concentrations to grid cells crossed by the corresponding trajectories (i.e., by trajectories ending at the site simultaneously with the measurements).(More)
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