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  • Miniatura
    Item type: Pozycja ,
    Appearance Comparison Is the Strongest Independent Correlate of Eating Disorder Risk among Adolescents
    (MDPI, 2026-08-03) Polak-Szczybyło, Ewelina
    Background: Previous studies have demonstrated associations between social media use, body image, and the risk of eating disorders. However, it remains unclear whether these associations are attributable to social media use itself or to processes related to how users perceive and respond to the content encountered on these platforms. Methods: This cross-sectional study included 750 secondary school students aged 17–18 years. Participants completed an author-developed questionnaire assessing social media use, the perceived influence of social media content on body image, and com-parisons of their own body shape with those presented on social media, as well as the Eating Attitudes Test (EAT-26). Results: TikTok was the most frequently used social media platform. An elevated risk of eating disorders (EAT-26 ≥ 20) was identified in 9.7% of participants. Greater perceived influence of social media content on body im-age and more frequent body shape comparisons were independently associated with higher EAT-26 scores and a greater likelihood of scoring ≥20 on the EAT-26. Conclu-sions: Body image-related processes, particularly comparisons of one’s own body shape with those presented on social media, may be more relevant to eating disorder risk than the amount of time spent using social media itself. These findings highlight the importance of preventive interventions focused on media literacy and reducing maladaptive appearance comparisons.
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    Item type: Pozycja ,
    GIS data related to the study of the grass fire effect on oak regeneration
    (2026-08) Bobiec, Andrzej
    GIS data related to the study of the grass fire effect on oak regeneration with map
  • Miniatura
    Item type: Pozycja ,
    Oak post-fire regeneration dynamics - field data
    (2026-07-29) Bobiec, Andrzej
    Approximately one hectare large lot of the post-agricultural area was subjected to grass burning in March 2026. All young oaks taller than 0.5 were identified and measured in the fire aftermath. For other woody species a simplified assessment was applied. Separate spreadsheets dedicated to oak and other species. Database contains geographic coordinats of trees. Detailed instruction in text boxes.
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    Item type: Pozycja ,
    Generation of Hydrogen Peroxide in Beer and Selected Strong Alcoholic Beverages
    (MDPI, 2025-01-20) Rak, Małgorzata; Mendys, Dawid; Płatek, Aleksandra; Sitarz, Oskar; Stefaniuk, Ireneusz; Bartosz, Grzegorz; Sadowska-Bartosz, Izabela
    The generation of hydrogen peroxide has been documented in various plant-based beverages, such as coffee, tea, herbal infusions and wine, as well in energy drinks containing ascorbate and in plant-based food. There are no data in the literature on the presence and generation of hydrogen peroxide in beer and strong alcoholic beverages containing plant material. This study aimed to examine whether beer and selected strong alcoholic beverages (brandy, whisky and fruit liqueurs) contain hydrogen peroxide. The presence of hydrogen peroxide was found in freshly opened brandy, whisky, liqueurs and most diluted beers; subsequent incubation in an air atmosphere led to the generation of hydrogen peroxide. The presence of the electron paramagnetic resonance (EPR) signal of the semiquinone radical and the generation of the superoxide radical demonstrated in selected alcoholic beverages by the superoxide dismutase-inhibitable reduction of Nitrotetrazolium Blue and oxidation of dihydroethidium are in agreement with the two-step mechanism of generation of hydrogen peroxide by the autoxidation of phenolics. These results broaden the list of beverages containing and producing hydrogen peroxide.
  • Miniatura
    Item type: Pozycja ,
    Dataset used in research paper entitled “Fabrication of Electrospun PCL/PEO Microfibers with Fe3O4 Nanoparticles for Magnetic Hyperthermia: Immunocompatibility Assessment Using CD14+ Monocytes, CD4+ and CD8+ T Cells, and CD56+ NK Cells In Vitro”
    (ACS Publications, 2026-04-15) Radoń, Adrian; Deręgowska, Anna; Ciuraszkiewicz, Agnieszka; Hawełek, Łukasz; Spałek, Hanna; Warski, Tymon; Hudecki, Andrzej; Łukowiec, Dariusz; Piotrowski, Piotr; Krogul-Sobczak, Agnieszka; Rost-Roszkowska, Magdalena; Chajec, Łukasz; Pieszko, Weronika; Bukała, Julia; Rzeszutek, Julia; Wnuk, Maciej; Lewińska, Anna
    Magnetite nanoparticles (Fe3O4 NPs), due to their unique physicochemical properties, are considered as promising nanomaterials for multiple biomedical applications. However, the development of novel strategies for surface modification and coating of Fe3O4 NPs is needed to fabricate Fe3O4 NPs with improved biocompatibility. In the present study, two polymers, namely, poly(ε-caprolactone) (PCL) and poly(ethylene oxide) (PEO), were applied to produce PCL/PEO microfibers containing Fe3O4 NPs (PCL/PEO/Fe3O4 MFs) using the electrospinning method. Their physicochemical properties, especially magnetically induced hyperthermia effects, were compared to Fe3O4 NPs. The biocompatibility and immunocompatibility of PCL/PEO/Fe3O4 MFs were then tested using four types of human immune cells, namely, CD14+ monocytes, CD4+ helper, CD8+ cytotoxic T cells, and CD56+ NK cells. Monocytes were the most sensitive to PCL/PEO/Fe3O4 MFs as judged by the induction of cell death (apoptosis and necrosis) and micronuclei production, whereas other immune cells were less or not affected by the stimulation with PCL/PEO/Fe3O4 MFs. PCL/PEO/Fe3O4 MFs also did not lower the viability of normal human fibroblasts. Furthermore, a mild immunogenic response was revealed in PCL/PEO/Fe3O4 MF-treated helper T cells based on the analysis of transcriptional activity of 92 genes involved in the NFκB pathway. Observed elevated mRNA levels of NFKB2, TNF, TNFAIP3, TRAF1, and TBK1 may have context-dependent immunomodulatory effects in PCL/PEO/Fe3O4 MF-stimulated helper T cells that should be taken into account while designing novel drug-delivery systems based on PCL/PEO and Fe3O4 NPs.