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NMR Study of Ion Motions in [C(NH_{2})_{3}]_{3}GaF_{6}

100%
Kozak A., Grottel M., Pająk Z.
Acta Physica Polonica A
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1993
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vol. 83
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issue 2
219-225
EN
Proton and fluorine spin-lattice relaxation times as well as second moments were measured in guanidinium hexafluorogallate over a wide range of temperature. The analysis of all cross-relaxation effects occurring in the four unlike spin system revealed two cation motions and yielded their activation parameters. It was found that the anion size did not influence C_{3} reorientation of cation nor isotropic reorientation of anion.
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Selected aspects of endothelial dysfunction and their influence on the atherosclerosis process modeled and analyzed by Petri net based approach

100%
Formanowicz D., Kozak A., Formanowicz P.
BioTechnologia
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2011
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issue 4
3
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Structural Studies of Selected DSPC-Surfactant Model Systems of Biological Membranes

76%
Szpotkowski K., Kozak M., Kozak A., Zieliński R., Wieczorek D., Jurga S.
Acta Physica Polonica A
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2009
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vol. 115
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issue 2
561-564
EN
Fourier transform infrared spectroscopy was used to analyse the influence of a cationic surfactant from the group of morpholine derivatives on the conformational dynamics of CH_2 group in acyl chain of DSPC. The presence of the surfactant causes a decrease in the DSPC phase transition temperature. This result suggests that the surfactant interactions with phospholipid molecules disturb the lipid layers. The Fourier transform infrared measurements were supplemented with tests of the environmental toxicity of the surfactant used.
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