Search Results (119)

Sustainable protein consumption is a key element in the transition toward more environmentally responsible food systems. Poultry, due to its relatively low carbon footprint and favorable health profile, holds significant potential to become an important component of the so-called “protein transition.” The aim of this article is to identify cognitive factors influencing consumer purchasing decisions regarding poultry and to formulate recommendations for marketing communication strategies that position poultry as a choice aligned with sustainability goals. This study is based on an exploratory factor analysis (EFA) conducted on a nationally representative sample of Polish consumers (AgriFood 2024). The results revealed three dominant decision-making determinants—taste, health, and convenience—collectively forming the original THC (Taste–Health–Convenience) model. This model provides a novel interpretive framework, showing how sustainability issues can be communicated through immediate, personally relevant consumer benefits, and subsequently expanded to include environmental and ethical aspects. The findings indicate that effective communication should emphasize tangible, everyday consumer benefits while also leveraging poultry’s lower climate impact compared to red meat. This article makes an original contribution to the debate on sustainable diets by presenting the THC model both as a tool for explaining the mechanisms of the attitude–behavior gap and as a practical instrument for designing campaigns that support the implementation of SDG 3 and SDG 12. Full article

This study quantitatively analyses how light sources, polishing methods, and backgrounds affect the color of “Tang yu”. Twenty-four samples were tested with three different light sources (D50, A, D65), two polishing methods, and nine Munsell neutral gray backgrounds. Testing 24 samples revealed that main coloring elements exhibit low concentrations with no linear relationship to color intensity. Light sources selectively alter chromaticity: D65 maintains color balance (recommended for grading), while A enhances red tones. Polishing methods significantly impact color perception, with glassy polishing markedly increasing Lightness (L*↑11.41%) and Chroma (C*↑42.11%) while shifting hues toward red-yellow. Background luminance (γ_b) critically influences color results: Lightness L* and Chroma C* increase via distinct power functions as γ_b rises, though Hue angle (h°) remains stable. Sample color can be predicted through γ_b based equations, with Munsell N9 background proving optimal for grading. Cluster and discriminant analyses effectively classified colors into three distinct groups, establishing a foundation for a reliable grading system. Full article

The high glycemic index (GI) of polished white rice (WR) presents challenges for blood glucose control in diabetes. This study investigated the in vitro digestibility of a whole grain blend (WGB, composed of black, red, and brown rice) and its effects on the gut microbiota in elderly diabetic individuals. WGB exhibited lower starch digestibility (69.76 ± 5.71% vs. 73.02 ± 6.16%) and a reduced estimated glycemic index (eGI, 73.43 ± 4.49 vs. 77.55 ± 2.64) than WR, likely due to its higher amylose content. WGB fermentation increased Bifidobacterium and Lactobacillaceae, reduced pro-inflammatory Bacteroides fragilis and Enterocloster bolteae, and released more arabinose and xylose. Additionally, WGB yielded higher isobutyrate, while WR contained more glucose and fructose in its structure, leading to increased acetate production and a more acidic environment. Functional analysis revealed that WGB upregulated pathways related to fatty acid elongation and fiber fermentation. These findings suggest WGB as a viable staple food alternative for diabetic patients, offering dual benefits in glycemic control and gut microbiota. Full article

The intergenic SNP (single-nucleotide polymorphism) rs80860411A>C was identified as a major QTL for drip loss measured on semimembranosus muscle (SM) in pigs. The SNP is located near the GALNT15. The purpose of this study was to analyze the association between rs80860411A>C and fattening, slaughter, and quality traits of Polish pigs. This study was conducted on 235 individuals belonging to two breeds, Polish Large White (n = 187) and Pulawska (n = 48). The rs80860411 genotypes were determined using the PCR-RFLP method. Association analysis was performed for each breed separately. It was shown that rs80860411A>C had a significant effect on fattening performance traits, on several slaughter performance traits, including width of the loin eye and carcass meat content (p ≤ 0.01, p ≤ 0.05), as well as on meat color—redness (a*) (p ≤ 0,05) in Pulawska breed. The obtained results indicate that the studied SNP has the potential to be a QTN and could be included in pig selection programs, especially in Pulawska pigs. Full article

Tree species classification provides invaluable information across various sectors, from forest management to conservation. This task is most commonly performed using remote sensing; however, this method is prone to classification errors, which modern computational approaches aim to minimize. Convolutional neural networks (CNNs) used to model tabular data have recently gained popularity as a highly efficient classification tool. In the present study, a variation of this method is used to classify satellite multispectral data from the Sentinel-2 mission to distinguish between 18 common Polish tree species. The novel model is trained and tested on data from species-homogeneous forest stands. The data form a multi-seasonal time series and cover five years of observations. The model achieved an overall accuracy of 80% and Cohen Kappa of 0.80 of the raw output and increased to 93% with post-processing procedures. Considering the large number of species classified, this is a promising and encouraging result. The presented results indicate the importance of early vegetation season reflectance data in model training. The spectral bands representing the infrared, red-edge and green wavelengths had the greatest impact on the model. Full article

The aim of this study was to investigate the preferences of young adults in the Polish apple market in response to the declining consumption of these fruits. To address the research questions, a study was conducted among young adults using a custom-designed online questionnaire. The research sample consisted of 729 participants. The data were analyzed using ANOVA, and due to the nature of the data, Wilcoxon tests were also employed to examine differences. The most frequently purchased fruits among young adults were bananas and apples; however, strawberries and raspberries were the most favored. The most preferred apple cultivars were bicolored (e.g., Jonagored) and red (e.g., Gala Royal), while yellow cultivars (e.g., Golden Delicious) were perceived as the least attractive. Young consumers favored apples that were juicy, firm, and moderately sweet. This study demonstrated that the skin color of an apple was associated with expectations regarding its firmness and sweetness. Apples with intense coloration (dark red and green) received the highest valuations, particularly when organically grown. In contrast, apples from conventional production systems were valued below their market price by young consumers, indicating the need for strategies aimed at enhancing their perceived value. Full article

Background/Objectives: Cutaneous manifestations can signal underlying systemic inflammation, potentially exacerbated by chronic stress and diminished well-being. While links between psychosocial factors and skin health are recognized, comprehensive data across diverse populations remain limited. This study aimed to quantify associations between self-reported stress management capabilities, sociodemographic factors (gender, age, education, urbanization, professional status), lifestyle factors indicative of well-being, and the prevalence of six common dermatological manifestations (pruritus, burning sensations, redness, rash, desquamation, sunburn) within a large Polish cohort. Methods: This cross-sectional study analyzed data from 27,000 adult participants (22,043 women, 4887 men) collected during the National Healthy Skin Test (2023) via an online questionnaire. Participants reported the frequency of dermatological symptoms, stress management practices related to skin health, and relevant lifestyle factors (indicators of well-being). Logistic regression analyses identified significant predictors for each skin manifestation. Results: Effective stress coping ability was significantly associated with a lower prevalence of all six investigated dermatological manifestations (p < 0.001 for all). Significant gender differences emerged: women reported more frequent redness and burning sensations (p < 0.001), while men reported more frequent rash, sunburn, and desquamation (p < 0.001). Younger age (18–24 years) was associated with increased rash, desquamation, and redness compared to older adults (>65 years), who reported fewer burning sensations and less pruritus. Higher education and residence in large urban centers (≥500,000 inhabitants) were associated with increased reports of specific symptoms like sunburn and redness. Conclusions: This large-scale study demonstrates a significant association between psychosocial factors, particularly self-reported stress management, and the prevalence of six common, self-reported dermatological manifestations across various sociodemographic groups in Poland. The findings underscore the potential importance of considering a biopsychosocial approach in relation to these common skin symptoms. Further research is warranted, but these results suggest that for such common, self-reported skin issues, integrating stress reduction strategies and considering sociodemographic contexts and well-being may be valuable considerations for potentially enhancing personalized patient care and warrant further clinical investigation. Full article

Purpose: The aim of this study was to evaluate the color stability of 3D printed resin disks using spectral reflectance data obtained at different time periods after immersion in various staining solutions. The color stability of 3D-printed temporary crowns is clinically important, as it directly affects the esthetic outcome and patient satisfaction during the provisional phase of treatment. Materials and methods: Forty identical round disk specimens measuring 10 mm in diameter and 2 mm in thickness were fabricated using CAD/CAM 3D printing resin (shade B1). Half of the specimens (n = 20) were polished using an acrylic bur and medium pumice. The remaining specimens were unpolished (n = 20). Each group of disks was then immersed in one of the following immersion solutions: artificial saliva, black tea, carrot juice, and red wine. Color difference ΔE was evaluated using the spectrophotometer, a spectral reflectance instrument, at baseline, day 1, week 1, week 2 and week 3, against a white background. Comparisons between polished and unpolished disks at each time point were conducted using Mann–Whitney tests. Differences among the staining solutions at each time point for both polished and unpolished disks were analyzed using a one-way ANOVA with Tukey’s post hoc test. Results: Color difference ΔE was measured using the CIELAB formula. The mean ΔE values of each group were calculated. The greatest difference in color was observed in the unpolished and polished disks immersed in red wine. Polished disks showed less color difference when compared to unpolished disks. Significant differences in ΔE were detected between polished and unpolished disks immersed in red wine at week 1 (p = 0.0159), week 2 (p = 0.0079) and week 3 (p = 0.0079) and in carrot juice at week 3 (p = 0.0317). Conclusions: Immersion of 3D printed disks in different staining solutions caused detectable color difference in the tested materials, which was relative to the immersion duration and the staining solution used. The color of the 3D printed resins is influenced by the surface finishing, which may result in visually perceptible color differences. The color stability of 3D printied materials should be improved to provide long-term esthetics. Full article

Micro-size light-emitting diodes (μLEDs) are high-brightness, low-power optoelectronic devices with significant potential in display technology, lighting, and biomedical applications. AlGaInP-based red LEDs experience severe size-dependent effects when scaled to the micron level, and addressing the fabrication challenges of GaN-based red μLED arrays is crucial for achieving homogeneous integration. This study investigates the employment of KOH wet treatments to alleviate efficiency degradation caused by sidewall leakage currents. GaN-based red μLED arrays with pixel sizes ranging from 5 × 5 µm² to 20 × 20 µm² were grown using metal-organic chemical vapor deposition (MOCVD), and then fabricated via rapid thermal annealing, mesa etching, sidewall wet treatment, electrode deposition, sidewall passivation, chemical-mechanical polishing, and via processes. The arrays, with pixel densities ranging from 668 PPI (Pixel Per Inch) to 1336 PPI, consist of 10,000 to 40,000 emitting pixels, and their optoelectronic properties were systematically evaluated. The arrays with varying pixel sizes fabricated in this study were subjected to three distinct processing conditions: without KOH treatment, 3 min of KOH treatment, and 5 min of KOH treatment. Electrical characterization reveals that the 5-min KOH treatment significantly reduces leakage current, enhancing the electrical performance, as compared to the samples without KOH treatment or 3-min treatment. In terms of optical properties, while the arrays without any KOH treatment failed to emit light, the ones with 3- and 5-min KOH treatment exhibit excellent optical uniformity and negligible blue shift. Most arrays treated for 5 min demonstrate superior light output power (LOP) and optoelectronic efficiency, with the 5 µm pixel arrays exhibiting unexpectedly high performance. The results suggest that extending the KOH wet treatment time effectively mitigates sidewall defects, reduces non-radiative recombination, and enhances surface roughness, thereby minimizing optical losses. These findings provide valuable insights for optimizing the fabrication of high-performance GaN-based red μLEDs and contribute to the development of stable, high-quality small-pixel μLEDs for advanced display and lighting applications. Full article

Background/Objectives: Diabetes mellitus is one of the most common chronic diseases worldwide. In addition to short-term and long-term complications, diabetes has a detrimental effect on the patients’ mood. The main psychiatric disorder occurring among diabetic patients is depression. The rates of depression in the developed and developing countries are 15% and 11%, respectively. This study aimed to determine the prevalence of depressive symptoms among patients with type 1 and type 2 diabetes and prediabetes in Poland using the example of the Podlaskie Province and taking into account selected sociodemographic variables. Methods: A total of 874 patients participated in the study, including 448 women (55.8%) and 386 men (44.2%). The study was conducted from July 2022 to July 2023 among the participants of the “Zatrzymaj cukrzycę! Polski Rejestr Diabetologiczny PolRed” (“Stop Diabetes! Polish Diabetes Registry (PolRed)”) project or those hospitalised in the Department of Endocrinology, Diabetology and Internal Medicine at the University Clinical Hospital in Bialystok. The study used a diagnostic survey method using a survey questionnaire developed by the authors and the Beck Depression Inventory (BDI). Results: The highest severity of depressive symptoms according to the Beck Depression Inventory was found in patients with type 2 diabetes (M = 12.18; SD ± 9.48) and the lowest in those with type 1 diabetes (M = 8.11; SD ± 7.55). The assessment of the differences in the severity of depressive symptoms according to the Beck Depression Inventory showed that participants with type 1 diabetes differed statistically significantly (p < 0.001) from those with type 2 diabetes and from those in a prediabetic state. In the group of type 2 diabetes (r = 0.336; p < 0.001) patients and prediabetic state patients (r = 0.231; p < 0.01), there were positive correlations of age with the severity of depressive symptoms. In the group of participants with type 2 diabetes, a statistically significant relationship (p < 0.001) was observed between age and the severity of depressive symptoms. Conclusions: The prevalence of mood disorders in patients with type 1 and type 2 diabetes and diagnosed prediabetes from the Podlaskie Province depends on the type of hyperglycaemic disorder. The prevalence of depressive symptoms among patients with type 1 and type 2 diabetes and prediabetes is determined by specific socio-demographic factors, including, above all, age and gender. The highest severity of a disturbed emotional state according to the Beck Depression Inventory is found in individuals with type 2 diabetes and the lowest in those with type 1 diabetes. Full article

Background: Diabetes mellitus is one of the greatest public health challenges worldwide and one of the major conditions contributing to a poorer quality of life. The main factors that may deteriorate quality of life among patients with diabetes include age, financial status, educational background, quality of healthcare services and presence of disease complications. This study aimed to assess the quality of life among patients with type 1 and type 2 diabetes and prediabetes in Poland using the example of the Podlaskie Province, taking into account selected sociodemographic variables. Methods: A total of 874 patients participated in the study, including 448 women (55.8%) and 386 men (44.2%). The study was conducted from July 2022 to July 2023 among participants of the “Zatrzymaj cukrzycę! Polski Rejestr Diabetologiczny PolReD” (“Stop Diabetes! Polish Diabetes Registry (PolRed)”) project or those hospitalised in the Department of Endocrinology, Diabetology and Internal Medicine at the University Clinical Hospital in Bialystok. The study used a diagnostic survey method using a survey questionnaire developed by the authors and the 36-Item Short Form Survey (SF-36). Results: The overall study group had the highest level of quality of life assessment in the domains of social functioning (M = 69.48; SD ± 28.07), physical functioning (M = 64.54; SD ± 31.57) and role limitations due to emotional problems (M = 62.40; SD ± 45.21), and the lowest level of quality of life in the domain of general health perceptions (M = 42.21; SD ± 12.77). Age was found to be negatively correlated in all quality of life domains analysed (r = −0.438; p < 0.001)—quality of life decreased with age in all investigated domains. Men had a statistically significantly (p < 0.05) higher quality of life in each analysed domain (M = 43.52–74.08; SD ± 12.68–44.09) compared to women (M = 41.18–65.88; SD ± 12.76–46.08). Place of residence also exhibited a statistically significant (p < 0.05) differentiated quality of life in terms of physical functioning. Conclusions: The assessment of quality of life among patients with type 1 and type 2 diabetes and those diagnosed with prediabetes from the Podlaskie Province depends on the type of hyperglycaemic disorder. The assessment of quality of life among patients with type 1 and type 2 diabetes and prediabetes is determined by specific socio-demographic factors, including, above all, age and gender. Respondents with type 1 diabetes have a higher quality of life in terms of role limitations due to physical health, role limitations due to emotional problems, pain (bodily pain) and general health compared to respondents with type 2 diabetes. Full article

In view of the threat to local breeds resulting from intensive animal production, many studies are conducted in search of arguments confirming their importance in food production. In the case of milk production, not only is its quantity important, but its quality is as well, including its chemical composition. Particular focus has recently been placed on the casein proteins beta-casein (CSN2) and kappa-casein (CSN3), due to their potential impact on human health or on the suitability of milk for cheese production. The present study analysed the polymorphism of these proteins in 1777 cows belonging to two local cattle breeds, Polish Red and Polish White-Backed, using Illumina Infinium XT SNP technology on a EuroGenomics MD chip. The results indicate that the Polish White-Backed breed is predisposed to produce ‘A2 milk’, as the frequency of the CSN2 A2 allele in the population was 61.2%. The Polish Red breed was characterised by a higher frequency of the CNS3 B allele (35%), which according to extensive scientific literature is associated with better coagulation properties, and increased whey expulsion. The highest yield of milk and its constituents, confirmed at p ≤ 0.01, was obtained for Polish White-Backed cows with the A2A2 genotype in CSN2 and cows with the AA genotype in CSN3. In the Polish Red breed, no statistically significant differences were obtained between means for milk production traits. Full article

Background/Objectives: Meat is an important source of nutrients, but the excessive consumption of red and processed meat raises concerns related to its association with chronic diseases. This study aimed to analyze the consumption of red and processed meat in Poland, compare it to dietary recommendations and examine sociodemographic factors affecting consumption patterns. Methods: Data from two representative studies conducted in 2017–2020, including 4000 adult inhabitants of Poland, were analyzed using a repeated 24-h recall to estimate the intake of red meat (RM), processed meat (PM), and combined red and processed meat (CRPM). CRPM intake was compared to national recommendations. Statistical analyses were performed using weighting to improve result generalization and adjust for demographic distribution errors. Results: The mean daily intake of CRPM was 139.0 g, including 64.0 g of RM and 75.3 g of PM. PM accounted for 59.4% of CRPM intake. Men consumed significantly more CRPM than women (171 g/day vs. 106 g/day, p < 0.001). Significant differences were found between age groups in RM consumption (p < 0.001) with younger individuals consuming more RM. PM intake was highest among middle-aged respondents (35–54 years, p < 0.001). Consumer profiles most closely aligned with the recommended ≤70 g/day intake included women (OR = 0.36, p < 0.001), older individuals (OR = 1.01, p = 0.002), and those with higher education (OR = 1.38, p = 0.010). Conclusions: The results indicate a significant exceedance of recommended meat intake, particularly processed meat, posing a health risk. Targeted public health interventions are needed, especially for younger men and middle-aged groups, to reduce processed meat consumption and promote healthier alternatives. Full article

One of the priorities in European policy is the greater use of wood. In this context, it is important to know the total amount of CO₂ absorbed by the tree and accumulated in the wood. In the timber industry, butt logs are mainly processed. The aim of this study is to analyze diameter at breast height (DBH), wood density (WD), and the amount of CO₂ in grand fir (GF), Douglas fir (DF), northern red oak (NRO), and black locust (BL) wood. The DBH and bark thickness were measured, and cores were taken to study WD and calculate the amount of CO₂. Analyses were conducted in three age classes of trees. It was found that in the youngest age class, DF had a significantly larger DBH compared to NRO and BL, and GF had a significantly larger DBH compared to NRO. The wood density of coniferous species was significantly lower compared to broadleaved species. DF absorbed the most CO₂. In Class III, DF had significantly larger DBH and significantly lower wood density compared to NRO and BL. DF absorbed significantly more CO₂ compared to NRO. In Classes IV and V, DF had larger DBH compared to NRO and lower wood density. The amount of CO₂ absorbed by both species was similar. Taking into account the amount of absorbed CO₂, the durability of the wood, and aspects related to sustainable forest management of the four studied non-native tree species, Douglas fir seems to be the best choice for cultivation in Polish forests. Full article

Poland suffered an epidemic of louse-borne typhus from 1916–1923, with 400,000 cases and more than 130,000 deaths. The causative factors were depressed economic conditions and a refugee crisis that engulfed Poland after World War I. The recognition of the epidemic in 1919 stimulated the creation of the League of Red Cross Societies (LRCS). However, the LCRS had limited resources, and the Poles requested help from other governments and the League of Nations (LoN). The United States sent the American–Polish Relief Expedition to conduct delousing. However, the Polish–Soviet War of 1920 disrupted typhus control and exacerbated the refugee situation. The LoN belatedly organized an underfunded Epidemic Commission. The LCRS sent a research team that did groundbreaking work on the pathology of typhus. Into 1921, the epidemic continued, driven by refugees from typhus-stricken Russia. By 1924, typhus cases were finally approaching pre-World War I levels. Multiple factors lead to the amelioration of the epidemic. The repatriation of prisoners of war and displaced civilians had concluded by 1923. Also, there had been a steady influx of sanitary, food, economic, and medical aid from various organizations into Poland since 1919. Administratively, within Poland, the anti-typhus campaign was also conducted more effectively by the Extraordinary Epidemic Commissariat. Full article