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The secondary stars in cataclysmic variables have not yet been properly obtained. This is due to the fact that their spectrum is heavily veiled by a strong blue continuum arising from the accretion disc. However the advent of new digital detectors and high resolution spectrographs now make possible a more complete investigation. We have observed AE Aqr, an 11th magnitude cataclysmic variable, with the UCL echelle spectrograph (UCLES) at the Anglo Australian Telescope.
Creek County April is Sexual Assault Awareness Month and this year's theme is 'Together We Act, United We Change' This year's campaign focuses on enhancing the public's understanding of sexual violence and encouraging everyone to work together to promote the safety and well-being of others.
Abstract This article systematically reviews recent empirical research on the factors shaping academics' knowledge about, and motivations to publish work in, so‐called ‘predatory’ journals. Growing scholarly evidence suggests that the concept of ‘predatory’ publishing’ – used to describe deceptive journals exploiting vulnerable researchers – is inadequate for understanding the complex range of institutional and contextual factors that shape the publication decisions of individual academics.
Report S. Safarian1,*, A. Hahn2,*, D. J. Mills2, M. Radloff1, M. L. Eisinger1, A. Nikolaev3, J. Meier-Credo1, F. Melin3, H. Miyoshi4, R. B. Gennis5, J. Sakamoto6, J. D. Langer1, P. Hellwig3,7, W. Kühlbrandt2,†, H. Michel1,† 1Department of Molecular Membrane Biology, Max Planck Institute of Biophysics, D-60438 Frankfurt/Main, Germany. 2Department of Structural Biology, Max Planck Institute of Biophysics, D-60438 Frankfurt/Main, Germany.
In bacteria, the transcription of DNA into mRNA by RNA polymerase is coupled to the translation of that mRNA into protein by the ribosome. How this coupling is achieved has been unclear. Kohler et al. show that RNA polymerase and the ribosome from Escherichia coli can form a so-called expressome complex. Electron microscopy structural analysis, together with functional experiments, revealed details of the coupled complex.
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