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Your search keyword '"Kröger, S"' showing total 508 results
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508 results on '"Kröger, S"'

1. Hyperfine Structure Investigation of Singly Ionized Thulium in FT Spectra

Author

Kebapci, T. Y., Parlatan, S., Sert, S., Ozturk, I. K., Basar, G., Sahin, T., Bilir, S., Ferber, R., Tamanis, M., and Kroger, S.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Abstract

The hyperfine structure of 40 spectral lines of singly ionized thulium (Tm II) in emission spectra from a hollow cathode discharge lamp measured with a Fourier transform spectrometer in the wavelength range from 335 nm to 2345 nm has been investigated. As a result of the analysis, the magnetic dipole hyperfine structure constants $A$ for 27 fine structure levels of Tm II were determined for the first time. In addition, the values of two magnetic dipole hyperfine structure constants $A$ from the literature were declared incorrect and the corrected values were given., Comment: 15 pages, 6 figures and 3 tables, accepted for publication in ApJ

Published
2024

5. Assessing ecotoxicity of an innovative bio-based mulch film: a multi-environmental and multi-bioassay approach

Author

Barbir, J., primary, Arato, E., additional, Chen, C-Y., additional, Granberg, M., additional, Gutow, L., additional, Krång, A-S., additional, Kröger, S. D., additional, Leal Filho, W., additional, Liwarska-Bizukojc, E., additional, Miksch, L., additional, Paetz, K., additional, Prodana, M., additional, Saborowski, R., additional, Silva Rojas, R., additional, and Witt, G., additional

Published
2023
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8. An approach for the identification of exemplar sites for scaling up targeted field observations of benthic biogeochemistry in heterogeneous environments

Author

Thompson, C. E. L., Silburn, B., Williams, M. E., Hull, T., Sivyer, D., Amoudry, L. O., Widdicombe, S., Ingels, J., Carnovale, G., McNeill, C. L., Hale, R., Marchais, C. Laguionie, Hicks, N., Smith, H. E. K., Klar, J. K., Hiddink, J. G., Kowalik, J., Kitidis, V., Reynolds, S., Woodward, E. M. S., Tait, K., Homoky, W. B., Kröger, S., Bolam, S., Godbold, J. A., Aldridge, J., Mayor, D. J., Benoist, N. M. A., Bett, B. J., Morris, K. J., Parker, E. R., Ruhl, H. A., Statham, P. J., and Solan, M.

Published
2017
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14. Revised energy levels and hyperfine structure constants of Nb II.

Author

Windholz, L. and Kröger, S.

Subjects
*ENERGY levels (Quantum mechanics), *HYPERFINE structure, *GRAVITY waves, *CENTER of mass, *WAVENUMBER, *SPECTRAL lines, *MAGNETIC dipoles
Abstract

Using wave number calibrated Fourier transform spectra, ranging from the IR to the UV regions, we determined with high accuracy the energies of the levels of the first ion of Niobium. In order to increase the accuracy of the center of gravity wave numbers of the observed spectral lines, the hyperfine structure was taken into account. For this purpose, the magnetic dipole hyperfine constants A were determined for all involved levels. All but one of the previously known levels were included in the calculation. This level (at 91 493 cm−1) is considered to be non-existent. From the experimental center of gravity wave numbers of 1121 lines we deduced the energy values of 184 levels of even parity and 164 levels of odd parity in a global fit. A comparison between our results and all previously available literature values is provided. [ABSTRACT FROM AUTHOR]

Published
2024
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21. Zusammenhang von Theory of Mind und Sprachkompetenz bei Kindern mit Cochlea-Implantaten

Author

Hoffmann, V, Burger, T, Hintermair, M, Overlach, F, and Kröger, S

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Einleitung: Der Begriff Theory of Mind (ToM) beschreibt die Fähigkeit, sich selbst und anderen mentale Zustände zuzuschreiben und so Verhalten zu erklären oder vorherzusagen [ref:1]. Studien legen nahe, dass die ToM sowohl sprachassoziiert ist als auch mit anderen psychosozialen[zum vollständigen Text gelangen Sie über die oben angegebene URL], 23. Jahrestagung der Deutschen Gesellschaft für Audiologie

Published
2020
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22. Climate action requires new accounting guidance and governance frameworks to manage carbon in shelf seas

Author

Luisetti, T., Ferrini, S., Grilli, G., Jickells, T.D., Kennedy, H., Kröger, S., Lorenzoni, I., Milligan, B., van der Molen, J., Parker, R., Pryce, T., Turner, R.K., Tyllianakis, E., Luisetti, T., Ferrini, S., Grilli, G., Jickells, T.D., Kennedy, H., Kröger, S., Lorenzoni, I., Milligan, B., van der Molen, J., Parker, R., Pryce, T., Turner, R.K., and Tyllianakis, E.

Abstract

Accounting guidelines exist for the recording of carbon flows in terrestrial and coastal ecosystems. Shelf sea sediments, while considered an important carbon store, have yet to receive comparable scrutiny. Here, we explore whether effective management of carbon stocks accumulating in shelf seas could contribute towards a nation’s greenhouse gas emissions reduction targets. We review the complexities of carbon transport and fate in shelf seas, and the geopolitical challenges of carbon accounting in climate governance because of the transboundary nature of carbon flows in the marine environment. New international accounting guidance and governance frameworks are needed to prompt climate action.

Published
2020

42. The application of passive sampler (DGT) technology for improved understanding of metal behaviour at a marine disposal site

Author

Parker R., Bolam T., Kröger S., Mason C., Birchenough S., Silburn B., Sivyer D., Mayes A. G., and Fones G. R.

Subjects
Dredge material, disposal, WFD, heavy metals, profiles, sediments, DGT, Environmental sciences, GE1-350
Abstract

Metal behaviour and availability at a contaminated dredge material disposal site within UK waters has been investigated using Diffusive Gradient in Thin films (DGT) passive sampling technology. Three stations representing contrasting history and presence of maintenance dredge disposal, including a control station outside the disposal site, have been studied and depth profiles of fluxes of different metals (Fe, Mn, Pb, Cu, Cd, Cr, Ni, Zn) to the binding gel (Chelex 100) have been derived. Higher flux rates and shallower mobilisation of metals (Mn and Fe) to the binding gel were observed at the disposal stations compared to the control station. Here we describe metal mobilization at different depths, linking the remobilization of Fe2+ and Mn2+ to the sediment (re)supply of other heavy metals of interest with a focus on Cd, Ni and Pb and as they are on the Water Framework Directive (WFD) list of priority substances and OSPAR list of priority pollutants. Results showed that Cd, Pb and Ni exhibited signs of resupply at the sediment-water interface (SWI). There was a potential increased mobilisation and source to the water column of Pb and Ni at the disposal site stations, but there was no Cd source, despite higher total loadings. This information has the potential to improve our current understanding of metal cycles at disposal sites. This work can be used as an indication of likely metal bioavailability and also assist in determining whether the sites act as sources or sinks of heavy metals. This information could assist disposal site monitoring and dredge material licensing.

Published
2013
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