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Spin-Polarized Scanning Tunnelling Microscopy of Ultrathin Films

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Kukunin A., Prokop J., Elmers H.
Acta Physica Polonica A
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2006
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vol. 109
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issue 3
371-375
EN
Using low temperature spin-polarized scanning tunneling microscopy we have studied the morphology and magnetic properties of ultrathin Fe(0.5 ML)Au(0.5 ML) nanowires prepared on a Mo(110) single crystal. The Fe nanostripes grown by step flow on a Mo(110) at 700 K were covered by Au at RT, and subsequently annealed at 700 K. Differences in the morphology of Au on Fe(110)/Mo(110) and clean Mo(110) surfaces are observed and discussed. After annealing, the Mo is covered by a homogeneous FeAu ML alloy with several iron enriched islands which reveal an out-of-plane magnetic contrast. Direct lateral exchange coupling has been observed for these islands.
2

Genetic background of cutaneous forms of lupus erythematosus: update on current evidence

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Osmola A., Namysl J., Jagodzinski P. P., Prokop J.
Journal of Applied Genetics
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2004
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vol. 45
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issue 1
77-86
EN
This article reviews and updates current information on the possible genetic basis for cutaneous lupus erythematosus. The aetiology of this condition remains unknown and is believed to be multifactorial, involving genetic, environmental and retroviral factors. A genetic predisposition is probably the greatest risk factor for this condition. Individual susceptibility to lupus erythematosus may be determined by a combination of specific polymorphisms of genes encoding multiple cytokines, adhesion molecules, and cellular proteins. This condition may lead to an abnormal expression of immunoregulatory molecules and finally results in the development or exacerbation of the disease. Recently also the role of endogenous retroviral sequences in the pathogenesis of autoimmunity has been discussed.
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