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21 results on '"Seweryn, Aleksandra"'

3. The impact of the COVID-19 Pandemic on hypertension phenotypes (ESH ABPM COVID-19 study)

Author

Narkiewicz, Krzysztof, Dubiela, Andżelina, Imprialos, Konstantinos, Stavropoulos, Konstantinos, de Freminville, Jean-Baptiste, Azizi, Michel, Cunha, Pedro Guimarães, Lewandowski, Jacek, Strzelczyk, Jakub, Wuerzner, Gregoire, Gosk-Przybyłek, Maria, Szwęch, Elżbieta, Prejbisz, Aleksander, Van der Niepen, Patricia, Kahan, Thomas, Jekell, Andreas, Spaak, Jonas, Tsioufis, Konstantinos, Ehret, Georg, Doroszko, Adrian, Kubalski, Piotr, Polonia, Jorge, Styczkiewicz, Katarzyna, Styczkiewicz, Marek, Mazur, Stanisław, Veglio, Franco, Rabbia, Franco, Eula, Elisabetta, Águila, Fernando Jaen, Sarzani, Riccardo, Spannella, Francesco, Jarai, Zoltan, Papadopoulos, Dimitrios, Sublet, Marilucy Lopez –, Grassos, Charalampos, Kahrimanidis, Ioannis, Gkaliagkousi, Eugenia, Triantafyllou, Areti, Grodzicki, Tomasz, Wizner, Barbara, Seweryn, Aleksandra, Moczulska, Beata, Ntineri, Angeliki, Robles, Nicolas Roberto, Widmiski, Jiri, Zbroch, Edyta, Ostrowska, Aleksandra, Wojciechowska, Wiktoria, Rajzer, Marek, Weber, Thomas, Bursztyn, Michael, Persu, Alexandre, Stergiou, George, Kiełbasa, Grzegorz, Chrostowska, Marzena, Doumas, Michaelis, Parati, Gianfranco, Bilo, Grzegorz, Grassi, Guido, Mancia, Giuseppe, Januszewicz, Andrzej, and Kreutz, Reinhold

Published
2024
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4. Multifaceted phase ordering kinetics of an antiferromagnetic spin-1 condensate

Author

Pietraszewicz, Joanna, Seweryn, Aleksandra, and Witkowska, Emilia

Subjects
Condensed Matter - Quantum Gases
Abstract

We study phase domain coarsening in the long time limit after a quench of magnetic field in a quasi one-dimensional spin-1 antiferromagnetic condensate. We observe that the growth of correlation length obeys scaling laws predicted by the two different models of phase ordering kinetics, namely the binary mixture and vector field. We derive regimes of clear realization for both of them. We demonstrate appearance of atypical scaling laws, which emerge in intermediate regions.

Published
2019
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6. The impact of the COVID-19 Pandemic on hypertension phenotypes (ESH ABPM COVID-19 study)

Author

Ostrowska, A, Wojciechowska, W, Rajzer, M, Weber, T, Bursztyn, M, Persu, A, Stergiou, G, Kiełbasa, G, Chrostowska, M, Doumas, M, Parati, G, Bilo, G, Grassi, G, Mancia, G, Januszewicz, A, Kreutz, R, Narkiewicz, K, Dubiela, A, Imprialos, K, Stavropoulos, K, de Freminville, J, Azizi, M, Cunha, P, Lewandowski, J, Strzelczyk, J, Wuerzner, G, Gosk-Przybyłek, M, Szwęch, E, Prejbisz, A, Van der Niepen, P, Kahan, T, Jekell, A, Spaak, J, Tsioufis, K, Ehret, G, Doroszko, A, Kubalski, P, Polonia, J, Styczkiewicz, K, Styczkiewicz, M, Mazur, S, Veglio, F, Rabbia, F, Eula, E, Águila, F, Sarzani, R, Spannella, F, Jarai, Z, Papadopoulos, D, Sublet, M, Grassos, C, Kahrimanidis, I, Gkaliagkousi, E, Triantafyllou, A, Grodzicki, T, Wizner, B, Seweryn, A, Moczulska, B, Ntineri, A, Robles, N, Widmiski, J, Zbroch, E, Ostrowska, Aleksandra, Wojciechowska, Wiktoria, Rajzer, Marek, Weber, Thomas, Bursztyn, Michael, Persu, Alexandre, Stergiou, George, Kiełbasa, Grzegorz, Chrostowska, Marzena, Doumas, Michaelis, Parati, Gianfranco, Bilo, Grzegorz, Grassi, Guido, Mancia, Giuseppe, Januszewicz, Andrzej, Kreutz, Reinhold, Narkiewicz, Krzysztof, Dubiela, Andżelina, Imprialos, Konstantinos, Stavropoulos, Konstantinos, de Freminville, Jean-Baptiste, Azizi, Michel, Cunha, Pedro Guimarães, Lewandowski, Jacek, Strzelczyk, Jakub, Wuerzner, Gregoire, Gosk-Przybyłek, Maria, Szwęch, Elżbieta, Prejbisz, Aleksander, Van der Niepen, Patricia, Kahan, Thomas, Jekell, Andreas, Spaak, Jonas, Tsioufis, Konstantinos, Ehret, Georg, Doroszko, Adrian, Kubalski, Piotr, Polonia, Jorge, Styczkiewicz, Katarzyna, Styczkiewicz, Marek, Mazur, Stanisław, Veglio, Franco, Rabbia, Franco, Eula, Elisabetta, Águila, Fernando Jaen, Sarzani, Riccardo, Spannella, Francesco, Jarai, Zoltan, Papadopoulos, Dimitrios, Sublet, Marilucy Lopez –, Grassos, Charalampos, Kahrimanidis, Ioannis, Gkaliagkousi, Eugenia, Triantafyllou, Areti, Grodzicki, Tomasz, Wizner, Barbara, Seweryn, Aleksandra, Moczulska, Beata, Ntineri, Angeliki, Robles, Nicolas Roberto, Widmiski, Jiri, Zbroch, Edyta, Ostrowska, A, Wojciechowska, W, Rajzer, M, Weber, T, Bursztyn, M, Persu, A, Stergiou, G, Kiełbasa, G, Chrostowska, M, Doumas, M, Parati, G, Bilo, G, Grassi, G, Mancia, G, Januszewicz, A, Kreutz, R, Narkiewicz, K, Dubiela, A, Imprialos, K, Stavropoulos, K, de Freminville, J, Azizi, M, Cunha, P, Lewandowski, J, Strzelczyk, J, Wuerzner, G, Gosk-Przybyłek, M, Szwęch, E, Prejbisz, A, Van der Niepen, P, Kahan, T, Jekell, A, Spaak, J, Tsioufis, K, Ehret, G, Doroszko, A, Kubalski, P, Polonia, J, Styczkiewicz, K, Styczkiewicz, M, Mazur, S, Veglio, F, Rabbia, F, Eula, E, Águila, F, Sarzani, R, Spannella, F, Jarai, Z, Papadopoulos, D, Sublet, M, Grassos, C, Kahrimanidis, I, Gkaliagkousi, E, Triantafyllou, A, Grodzicki, T, Wizner, B, Seweryn, A, Moczulska, B, Ntineri, A, Robles, N, Widmiski, J, Zbroch, E, Ostrowska, Aleksandra, Wojciechowska, Wiktoria, Rajzer, Marek, Weber, Thomas, Bursztyn, Michael, Persu, Alexandre, Stergiou, George, Kiełbasa, Grzegorz, Chrostowska, Marzena, Doumas, Michaelis, Parati, Gianfranco, Bilo, Grzegorz, Grassi, Guido, Mancia, Giuseppe, Januszewicz, Andrzej, Kreutz, Reinhold, Narkiewicz, Krzysztof, Dubiela, Andżelina, Imprialos, Konstantinos, Stavropoulos, Konstantinos, de Freminville, Jean-Baptiste, Azizi, Michel, Cunha, Pedro Guimarães, Lewandowski, Jacek, Strzelczyk, Jakub, Wuerzner, Gregoire, Gosk-Przybyłek, Maria, Szwęch, Elżbieta, Prejbisz, Aleksander, Van der Niepen, Patricia, Kahan, Thomas, Jekell, Andreas, Spaak, Jonas, Tsioufis, Konstantinos, Ehret, Georg, Doroszko, Adrian, Kubalski, Piotr, Polonia, Jorge, Styczkiewicz, Katarzyna, Styczkiewicz, Marek, Mazur, Stanisław, Veglio, Franco, Rabbia, Franco, Eula, Elisabetta, Águila, Fernando Jaen, Sarzani, Riccardo, Spannella, Francesco, Jarai, Zoltan, Papadopoulos, Dimitrios, Sublet, Marilucy Lopez –, Grassos, Charalampos, Kahrimanidis, Ioannis, Gkaliagkousi, Eugenia, Triantafyllou, Areti, Grodzicki, Tomasz, Wizner, Barbara, Seweryn, Aleksandra, Moczulska, Beata, Ntineri, Angeliki, Robles, Nicolas Roberto, Widmiski, Jiri, and Zbroch, Edyta

Published
2024

11. The Optical Properties of Thin Film Alloys of ZnO, TiO 2 and ZrO 2 with Al 2 O 3 Synthesised Using Atomic Layer Deposition.

Author

Nosidlak, Natalia, Jaglarz, Janusz, Vallati, Andrea, Dulian, Piotr, Jurzecka-Szymacha, Maria, Gierałtowska, Sylwia, Seweryn, Aleksandra, Wachnicki, Łukasz, Witkowski, Bartłomiej S., and Godlewski, Marek

Subjects
ATOMIC layer deposition, ZINC oxide films, ALUMINUM oxide, THIN films, OPTICAL properties, TITANIUM dioxide
Abstract

In this work, the results of ellipsometric studies of thin films of broadband oxides (ZnO, TiO2, ZrO2) and broadband oxides doped with Al2O3 (Al2O3–ZnO, Al2O3–TiO2, Al2O3–ZrO2) are presented. All layers have been produced using the atomic layer deposition method. Ellipsometric studies were performed in the wavelength range of 193–1690 nm. Sellmeier and Cauchy models were used to describe the optical properties of the tested layers. Dispersion dependencies of refractive indices were determined for thin layers of broadband oxides on silicon substrates, and then for layers of Al2O3 admixture. The EDX investigations enabled estimation of the composition of the alloys. The Bruggeman effective medium approximation (EMA) model was used to determine the theoretical dependencies of the dispersion refractive indices of the studied alloys. The refractive index values determined using the Bruggeman EMA model are in good agreement with the values determined from the ellipsometric measurements. The doping of thin layers of ZnO, ZrO2 and TiO2 with Al2O3 enables the creation of anti-reflective layers and filters with a specific refractive index. [ABSTRACT FROM AUTHOR]

Published
2023
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13. An apparatus for applying fire-like heat flux to bench-scale samples

Author

Seweryn, Aleksandra, Lucherini, Andrea, and Franssen, Jean-Marc

Abstract

The research study presented in this paper concerns an experimental electricity-powered apparatus for applying fire-like heat flux to bench-scale samples. It consists of various elements, of which the most important are ceramic heating pads used to impose a defined heat flux on the exposed side of the sample mounted in a steel holder. The test method allows to control the heating pads’ temperature as well as to adjust the distance between the heating pads and the specimen to obtain heat fluxes up to 150 kW/m2. The thickness of the convective boundary layer at the heating pads’ surface is estimated to be around 3 cm, significantly lower than in case of gas-fired radiant panels. The performance of the apparatus was analysed in a case study on soda-lime-silica glass specimen. Experimental results were compared to numerical modelling. This analysis showed that a thermal exposure compared to the ISO 834 fire curve can be imposed on the exposed side of the specimen. There are many research possibilities for future applications of the presented experimental methodology: among others, tests with bigger specimens with heating pads surface up to 1.34 m2, and tests in controlled atmosphere.

Published
2023
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14. Studies of Electrical Parameters and Thermal Stability of HiPIMS Hafnium Oxynitride (HfO x N y) Thin Films.

Author

Puźniak, Mirosław, Gajewski, Wojciech, Seweryn, Aleksandra, Klepka, Marcin T., Witkowski, Bartłomiej S., Godlewski, Marek, and Mroczyński, Robert

Subjects
THIN films, THERMAL stability, HAFNIUM, MAGNETRON sputtering, REACTIVE sputtering, NITRIDES
Abstract

This work demonstrated the optimization of HiPIMS reactive magnetron sputtering of hafnium oxynitride (HfOxNy) thin films. During the optimization procedure, employing Taguchi orthogonal tables, the parameters of examined dielectric films were explored, utilizing optical methods (spectroscopic ellipsometry and refractometry), electrical characterization (C-V, I-V measurements of MOS structures), and structural investigation (AFM, XRD, XPS). The thermal stability of fabricated HfOxNy layers, up to 800 °C, was also investigated. The presented results demonstrated the correctness of the optimization methodology. The results also demonstrated the significant stability of hafnia-based layers at up to 800 °C. No electrical parameters or surface morphology deteriorations were demonstrated. The structural analysis revealed comparable electrical properties and significantly greater immunity to high-temperature treatment in HfOxNy layers formed using HiPIMS, as compared to those formed using the standard pulsed magnetron sputtering technique. The results presented in this study confirmed that the investigated hafnium oxynitride films, fabricated through the HiPIMS process, could potentially be used as a thermally-stable gate dielectric in self-aligned MOS structures and devices. [ABSTRACT FROM AUTHOR]

Published
2023
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18. Zirconium Oxide Thin Films Obtained by Atomic Layer Deposition Technology Abolish the Anti-Osteogenic Effect Resulting from miR-21 Inhibition in the Pre-Osteoblastic MC3T3 Cell Line

Author

Seweryn,Aleksandra, Pielok,Ariadna, Lawniczak-Jablonska,Krystyna, Pietruszka,Rafał, Marcinkowska,Klaudia, Sikora,Mateusz, Witkowski,Bartłomiej S., Godlewski,Marek, Marycz,Krzysztof, Śmieszek,Agnieszka, Seweryn,Aleksandra, Pielok,Ariadna, Lawniczak-Jablonska,Krystyna, Pietruszka,Rafał, Marcinkowska,Klaudia, Sikora,Mateusz, Witkowski,Bartłomiej S., Godlewski,Marek, Marycz,Krzysztof, and Śmieszek,Agnieszka

Abstract

Aleksandra Seweryn,1 Ariadna Pielok,2 Krystyna Lawniczak-Jablonska,1 Rafal Pietruszka,1 Klaudia Marcinkowska,2 Mateusz Sikora,2 Bartlomiej S Witkowski,1 Marek Godlewski,1 Krzysztof Marycz,2,3 Agnieszka Smieszek2 1Institute of Physics, Polish Academy of Sciences, Warsaw PL-02668, Poland; 2Wroclaw University of Environmental and Life Sciences, Department of Experimental Biology, Wroclaw PL-50375, Poland; 3Cardinal Stefan Wyszynski University, Collegium Medicum, Warsaw PL-01938, PolandCorrespondence: Aleksandra SewerynPolish Academy of Sciences, Aleja Lotnikow 32/46, Warsaw PL-02668, PolandTel +48 22 116 33 99Fax +48 22 843 09 26Email aseweryn@ifpan.edu.plAgnieszka SmieszekWroclaw University of Environmental and Life Sciences, Norwida St. 27 B, Wroclaw PL-50-375, PolandTel +48 71 320 5229Fax +48 22 843 09 26Email agnieszka.smieszek@upwr.edu.plIntroduction: The development of the field of biomaterials engineering is rapid. Various bioactive coatings are created to improve the biocompatibility of substrates used for bone regeneration, which includes formulation of thin zirconia coatings with pro-osteogenic properties. The aim of this study was to assess the biological properties of ZrO2 thin films grown by Atomic Layer Deposition (ALD) technology (ZrO2ALD).Methodology: The cytocompatibility of the obtained layers was analysed using the mice pre-osteoblastic cell line (MC3T3) characterized by decreased expression of microRNA 21-5p (miR-21-5p) in order to evaluate the potential pro-osteogenic properties of the coatings. The in vitro experiments were designed to determine the effect of ZrO2ALD coatings on cell morphology (confocal microscope), proliferative activity (cell cycle analysis) and metabolism, reflected by mitochondrial membrane potential (cytometric-based measurement). Additionally, the influence of layers on the expression of genes associated with cell survival and osteogenesis was studied using RT-qPCR. The following genes were investigated: B-cell lymphoma 2 (

Published
2020

19. Titanium Dioxide Thin Films Obtained by Atomic Layer Deposition Promotes Osteoblasts’ Viability and Differentiation Potential While Inhibiting Osteoclast Activity—Potential Application for Osteoporotic Bone Regeneration

Author

Smieszek, Agnieszka, primary, Seweryn, Aleksandra, additional, Marcinkowska, Klaudia, additional, Sikora, Mateusz, additional, Lawniczak-Jablonska, Krystyna, additional, Witkowski, Bartlomiej. S., additional, Kuzmiuk, Piotr, additional, Godlewski, Marek, additional, and Marycz, Krzysztof, additional

Published
2020
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20. Zirconium Oxide Thin Films Obtained by Atomic Layer Deposition Technology Abolish the Anti-Osteogenic Effect Resulting from miR-21 Inhibition in the Pre-Osteoblastic MC3T3 Cell Line

Author

Seweryn, Aleksandra, primary, Pielok, Ariadna, additional, Lawniczak-Jablonska, Krystyna, additional, Pietruszka, Rafał, additional, Marcinkowska, Klaudia, additional, Sikora, Mateusz, additional, Witkowski, Bartłomiej S., additional, Godlewski, Marek, additional, Marycz, Krzysztof, additional, and Śmieszek, Agnieszka, additional

Published
2020
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