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Light-induced oxidation of iron atoms in a photosensitive nitrile hydratase

Honda, J. ; Teratani, Y. ; Kobayashi, Y. ; [et al.]

Amsterdam : Elsevier

FEBS Letters 301 (1992), S. 177-180

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ISSN: 0014-5793

Keywords: Magnetic susceptibility ; Mossbauer spectroscopy ; Nitrile hydratase ; Non-heme iron ; Oxidation ; Photoactivation

Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Topics: Biology , Chemistry and Pharmacology , Physics

Type of Medium: Electronic Resource

URL: http://linkinghub.elsevier.com/retrieve/pii/0014-5793(92)81242-E

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Observation of coherent X-ray production by 800-MeV electrons in a periodic triple-crystal target (1997)

Andreyashkin, M. Yu. ; Zabaev, V. N. ; Kaplin, V. V. ; [et al.]

Springer

JETP letters 65 (1997), S. 625-631

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ISSN: 1090-6487

Keywords: 41.50.+h ; 78.70.−g

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The production of coherent x radiation by 800-MeV electrons in a target consisting of three 16-µm silicon crystals is investigated at the Tomsk synchrotron. The target structure makes it possible to observe from each crystal in turn, as the target is rotated, the radiation due to the summation of parametric x radiation (PXR) and the diffracted resonance transition radiation (DRTR) produced at the surfaces of the preceding crystals. The orientational dependence obtained shows that the contribution of the DRTR increases with the number of the crystal in the series, so that the angular density of the DRTR from the third crystal is approximately 1.7 times higher than the density of the PXR.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1134/1.567391

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The multi-configuration Dirac-Fock calculation of the low-lying levels of Sm (2001)

Dilip, A. ; Endo, I. ; Fukumi, A. ; [et al.]

Springer

The European physical journal 14 (2001), S. 271-277

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ISSN: 1434-6079

Keywords: PACS. 31.15.Ar Ab initio calculations – 31.25.Jf Electron correlation calculations for atom and ions: excited states – 32.10.Fn Fine and hyperfine structure

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract: The excitation energies and hyper-fine structure constants of the low-lying levels of Sm atom are calculated using the multi-configuration Dirac-Fock (MCDF) method. The results show that the excitation energies of the ground state multiplets can be calculated accurately using a small orbital set but the higher levels need larger orbital sets. Similar inference can also be drawn from the discrepancy between the calculated values of the hyper-fine constants and the experimental data. A sequence of MCDF calculation demonstrates the effect of the MCDF potential on the orbitals. Among the rare earth atoms Sm is a promising candidate for discrete symmetry violation experiments in atoms. This makes accurate theoretical calculations necessary since parameters in particle physics can be derived by combining the experimental results with the theoretical results. And these could be a probe for the physics beyond the standard model.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s100530170193

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