OPEN Repository

Welcome to OPEN - the Repository of Open Scientific Publications, run by the Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw, previously operating as the CeON Repository. The Repository enables Polish researchers from all fields to openly share their articles, books, conference materials, reports, doctoral theses, and other scientific texts.

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Kapitał zagraniczny w bezpłatnej prasie regionalnej i lokalnej
(Wydawnictwo Uniwersytetu Rzeszowskiego, 2025) Flasiński, Krzysztof; Olechowska, Paulina; Uniwersytet Szczeciński
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Forecasting SARS-CoV-2 epidemic dynamic in Poland with the pDyn agent-based model
(Elsevier B.V, 2024) Niedzielewski, Karol; Bartczuk, Rafał P.; Bielczyk, Natalia; Bogucki, Dominik; Dreger, Filip; Dudziuk, Grzegorz; Górski, Łukasz; Gruziel-Słomka, Magdalena; Haman, Jerzy; Kaczorek, Artur; Kisielewski, Jan; Krupa, Bartosz; Moszyński, Antoni; Nowosielski, Jędrzej M.; Radwan, Maciej; Semeniuk, Marcin; Tymoszuk, Urszula; Zieliński, Jakub; Rakowski, Franciszek; Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw, Warsaw, Poland; Scientific Research Division, Children’s Memorial Health Institute, Warsaw, Poland; Ontology of Value, Nijmegen, Netherlands; Faculty of Physics, University of Bialystok, Białystok, Poland; Division of Psychiatry, University College London, London, United Kingdom
We employ pDyn (derived from “pandemics dynamics”), an agent-based epidemiological model, to forecast the fourth wave of the SARS-CoV-2 epidemic, primarily driven by the Delta variant, in Polish society. The model captures spatiotemporal dynamics of the epidemic spread, predicting disease-related states based on pathogen properties and behavioral factors. We assess pDyn’s validity, encompassing pathogen variant succession, immunization level, and the proportion of vaccinated among confirmed cases. We evaluate its predictive capacity for pandemic dynamics, including wave peak timing, magnitude, and duration for confirmed cases, hospitalizations, ICU admissions, and deaths, nationally and regionally in Poland. Validation involves comparing pDyn’s estimates with real-world data (excluding data used for calibration) to evaluate whether pDyn accurately reproduced the epidemic dynamics up to the simulation time. To assess the accuracy of pDyn’s predictions, we compared simulation results with real-world data acquired after the simulation date. The findings affirm pDyn’s accuracy in forecasting and enhancing our understanding of epidemic mechanisms
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Przekształcenia krajobrazu pod wpływem globalizacji turystyki – przykład wyspy Fuerteventura na Wyspach Kanaryjskich
(Komisja Krajobrazu Kulturowego PTG, 2024) Szymiczek, Małgorzata; University of Silesia in Katowice, Faculty of Natural Sciences, Poland
Celem artykułu jest ukazanie przemian przestrzennych wybranych osad rybackich oraz terenów wcześniej niezagospodarowanych na wyspie Fuerteventura pod wpływem procesu globalizacji turystyki. Jest to popularny cel podróży w regionie Wysp Kanaryjskich będących jedną ze wspólnot autonomicznych Hiszpanii. Artykuł ukazuje czynniki globalizacyjne na przykładzie dostępności transportu lotniczego, ekspansji globalnych sieci hotelowych oraz komercjalizacji przestrzeni, które wpłynęły na krajobraz wyspy Fuerteventura. Przekształcenia krajobrazu są przedstawione na przykładzie wybranych miejscowości: Corralejo, Morro Jable, Costa Calma, Caleta de Fuste, Puerto del Rosario. Badania przeprowadzono metodami kameralnymi, obejmującymi analizę archiwalnych wydawnictw oraz dokumentacji fotograficznej z własnych wyjazdów terenowych. Wyniki wskazują, że krajobraz Fuerteventury uległ znaczącym zmianom w wyniku intensywnego rozwoju turystyki, prowadząc do urbanizacji dawnych osad rybackich i przekształceń terenów niezagospodarowanych zlokalizowanych w pasie nadbrzeżnym.
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Study on Electromagnetic Properties of Graphite/Graphene/ Silver-Coated Copper Powder Monolayer Coated Composites
(Sciendo, 2023-04-19) Liu, Yuanjun; Han, Xiaohui; Bao, Wenli; Ding, Xiongwei; Zhao, Xiaoming; Engineering research Center of Technical Textile, Ministry of Education, Donghua University, Shanghai 201620, China; School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
With the rapid development of electronic technology and military techniques, electromagnetic protection materials are becoming more and more significant to people. Harmful electromagnetic radiation not only affects the normal operation of electronic equipments and military security, but also has a serious impact on human health. At present, using absorbing and shielding materials are effective means to reduce the harm of electromagnetic waves. In this project, graphite, graphene and silver-coated copper powder coated composites were prepared using PU-2540 polyurethane and adopting a coating process for the substrate on plain polyester/cotton fabric. The controlled variable method was used to prepare and study the electromagnetic properties of single-layer coating composites with different functional particle contents. The result showed that within the frequency range of 0.01GHz~1.0GHz, when the total mass of functional particles was 48% relative to that of the polyurethane, the value of the real part of the dielectric constant of the sample remained the largest and its polarization ability was the strongest. Within the frequency range of 0.08GHz~1.0GHz, when the content of functional particles was 24% relative to that of the polyurethane, the value of the imaginary part of the dielectric constant and the loss of the tangent value of the sample kept the maximum, and the loss and attenuation ability with respect to electromagnetic waves were both the strongest. Within the frequency range of 1.3GHz~2.0GHz, when the content of functional particles was 36% relative to that of the polyurethane, the value of the reflection loss of the sample was -26.93dB, and the minimum value of the reflection loss was obtained at a frequency of 1.6GHz, at the moment of which, the absorbing property of the sample was the best.
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The longitudinal relationship between acculturation and alcohol use among immigrant adolescents in Europe
(Sage Publications, 2025) Czaderny, Krzysztof; Uniwersytet Ekonomiczny w Krakowie
This study examines the relationship between alcohol use among immigrant adolescents living in Europe and their sense of national belonging as well as the ethnic composition of their friendship networks, contributing to the broader discussion on the healthy immigrant effect. To date, the majority of longitudinal studies examining the relationship between acculturation and alcohol use have been conducted in the United States. This study employs a random-intercept cross-lagged panel model, analyzing data from the Children of Immigrants Longitudinal Survey in Four European Countries. The sample includes 5,235 adolescents with an immigrant background living in England, Germany, the Netherlands, and Sweden. The findings of this study indicate that identification as a foreigner was negatively related to alcohol use over time, whereas identification with the host country was positively associated with alcohol use longitudinally. In line with the immigrant acculturation hypothesis, the proportion of friends from the ethnic background of the host country was longitudinally positively associated with alcohol use. A similar pattern of relationships was observed for alcohol misuse. As demonstrated in the two-part analysis, identification as a foreigner, identification with the host country, and ethnic composition of friendship networks were primarily associated with the initiation of alcohol use rather than the frequency of alcohol use among immigrant adolescents. In conclusion, the promotion of selective acculturation among this group is recommended, especially in view of the increased health risks associated with alcohol use due to immigrants’ lower propensity to utilize preventive healthcare.

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