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271 - 280 / 2000
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Obdrži sonce na varni strani - preprečevanje in zgodnje odkrivanje kožnega melanoma : XXXII. seminar "In memoriam dr. Dušana Reje"
2024, proceedings of professional or unreviewed scientific conference contributions

Keywords: kožni rak, kožni melanom, preventiva, dejavniki tveganja, ultravijolično sevanje, kožne spremembe, zborniki
Published in DiRROS: 08.11.2024; Views: 144; Downloads: 1366
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Priročnik za aplikacijo kompleksnega modela upravljanja ekosistemov na krajinski ravni
Anže Japelj, Andreja Ferreira, Pia Höfferle, Anže Martin Pintar, Andrej Kobler, Katja Kavčič Sonnenschein, 2024, dictionary, encyclopaedia, lexicon, manual, atlas, map

Keywords: ekosistemske storitve, varstvo narave, projekt ZAGON
Published in DiRROS: 08.11.2024; Views: 162; Downloads: 82
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278.
Deciphering the two-step hydride mechanism of monoamine oxidase flavoenzymes
Martina Rajić, Alja Prah, Jernej Stare, 2024, original scientific article

Published in DiRROS: 08.11.2024; Views: 150; Downloads: 954
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279.
Effects of hydrogen dissociation during gas flooding on formation of metal hydride cluster ions in secondary ion mass spectrometry
Jernej Ekar, Sabina Markelj, Miran Mozetič, Rok Zaplotnik, Janez Kovač, 2024, original scientific article

Abstract: The application of hydrogen flooding was recently shown to be a simple and effective approach for improved layer differentiation and interface determination during secondary ion mass spectrometry (SIMS) depth profiling of thin films, as well as an approach with potential in the field of quantitative SIMS analyses. To study the effects of hydrogen further, flooding of H2 molecules was compared to reactions with atomic H on samples of pure metals and their alloys. H2 was introduced into the analytical chamber via a capillary, which was heated to approximately 2200 K to achieve dissociation. Dissociation of H2 up to 30% resulted in a significant increase in the intensity of the metal hydride cluster secondary ions originating from the metallic samples. Comparison of the time scales of possible processes provided insight into the mechanism of hydride cluster secondary ion formation. Cluster ions presumably form during the recombination of the atoms and molecules from the sample and atoms and molecules adsorbed from the gas. This process occurs on the surface or just above it during the sputtering process. These findings coincide with those of previous mechanistic and computational studies.
Keywords: hydrogen atmosphere, molecule dissociation, gas flooding, cluster ions, secondary ion mass spectrometry
Published in DiRROS: 08.11.2024; Views: 145; Downloads: 73
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