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From Intention–Behaviour Gap to Dietary Affordances: An Active Inference Account of Sustainable Eating
Abigail McIntosh
,Amy Griffiths
,Anthony Brennan
,Hayley Anne Young
Posted: 30 December 2025
An Unexpected Inverse Relationship Between Biofilm Formation and Antibiotic Resistance in Stenotrophomonas maltophilia
Pompilio Arianna
,Di Bonaventura Giovanni
Background/Objectives: Stenotrophomonas maltophilia is an emerging opportunistic pathogen associated with severe infections, particularly in patients with cystic fibrosis (CF). Its intrinsic multidrug resistance and ability to form biofilms significantly complicate treatment. While biofilm growth is widely linked to antimicrobial tolerance, the relationship between biofilm-forming capacity and planktonic antibiotic resistance in S. maltophilia remains unclear. This study aimed to investigate the association between antibiotic resistance profiles and biofilm formation in clinical isolates from CF and non-CF patients. Methods: A total of 86 clinical S. maltophilia isolates (40 from CF airways and 46 from non-CF patients) were analyzed. Antibiotic susceptibility to seven agents was assessed by disk diffusion, with results interpreted according to EUCAST and CLSI criteria. Multidrug resistance phenotypes were defined using standard criteria. Biofilm formation was quantified after 24 h using a crystal violet microtiter plate assay and categorized into five levels of production. Statistical analyses were performed to compare biofilm formation across resistance profiles and clinical origins and to assess correlations between biofilm biomass and multidrug resistance. Results: Overall, high resistance rates were observed, particularly to meropenem (87.2%), ciprofloxacin (80.2%), and rifampicin (72.1%). CF isolates showed significantly higher resistance to piperacillin/tazobactam and a higher prevalence of multidrug resistance. Biofilm production was detected in 94.2% of isolates, with strong and powerful biofilm producers predominating. However, isolates from CF patients formed significantly less biofilm than those from non-CF patients. Notably, resistance to piperacillin/tazobactam and meropenem was associated with significantly reduced biofilm formation, as reflected in both median biomass and the proportion of high biofilm producers. Across the entire collection, the number of antibiotic resistances displayed by an isolate was negatively correlated with biofilm biomass. These trends were maintained after stratification by clinical origin, although some comparisons did not reach statistical significance. Conclusions: These findings demonstrate an unexpected inverse relationship between planktonic antibiotic resistance and biofilm-forming efficiency in S. maltophilia. Enhanced biofilm production may represent an alternative persistence strategy in more antibiotic-susceptible strains, with important implications for infection management and therapeutic failure.
Background/Objectives: Stenotrophomonas maltophilia is an emerging opportunistic pathogen associated with severe infections, particularly in patients with cystic fibrosis (CF). Its intrinsic multidrug resistance and ability to form biofilms significantly complicate treatment. While biofilm growth is widely linked to antimicrobial tolerance, the relationship between biofilm-forming capacity and planktonic antibiotic resistance in S. maltophilia remains unclear. This study aimed to investigate the association between antibiotic resistance profiles and biofilm formation in clinical isolates from CF and non-CF patients. Methods: A total of 86 clinical S. maltophilia isolates (40 from CF airways and 46 from non-CF patients) were analyzed. Antibiotic susceptibility to seven agents was assessed by disk diffusion, with results interpreted according to EUCAST and CLSI criteria. Multidrug resistance phenotypes were defined using standard criteria. Biofilm formation was quantified after 24 h using a crystal violet microtiter plate assay and categorized into five levels of production. Statistical analyses were performed to compare biofilm formation across resistance profiles and clinical origins and to assess correlations between biofilm biomass and multidrug resistance. Results: Overall, high resistance rates were observed, particularly to meropenem (87.2%), ciprofloxacin (80.2%), and rifampicin (72.1%). CF isolates showed significantly higher resistance to piperacillin/tazobactam and a higher prevalence of multidrug resistance. Biofilm production was detected in 94.2% of isolates, with strong and powerful biofilm producers predominating. However, isolates from CF patients formed significantly less biofilm than those from non-CF patients. Notably, resistance to piperacillin/tazobactam and meropenem was associated with significantly reduced biofilm formation, as reflected in both median biomass and the proportion of high biofilm producers. Across the entire collection, the number of antibiotic resistances displayed by an isolate was negatively correlated with biofilm biomass. These trends were maintained after stratification by clinical origin, although some comparisons did not reach statistical significance. Conclusions: These findings demonstrate an unexpected inverse relationship between planktonic antibiotic resistance and biofilm-forming efficiency in S. maltophilia. Enhanced biofilm production may represent an alternative persistence strategy in more antibiotic-susceptible strains, with important implications for infection management and therapeutic failure.
Posted: 30 December 2025
Central Sensitisation After Orthopaedic Trauma: An Overlooked Contributor to Chronic Pain and Functional Disability—A Scoping Review
Arfaz Shaik
,Arjun Chakrapani
,Aaron Alexander
,Abdullah Naseer
,Umar Hayat
Posted: 30 December 2025
Hazard -Risk Geospatial-Based Assessment of Groundwater Depletion and Land Subsidence for Water Conservation
Ni Made Pertiwi Jaya
,Masahiko Nagai
Posted: 30 December 2025
Artificial Tissue Models for Microneedle Testing and Analysis
Elham Lori Zoudani
,Navid Kashaninejad
Posted: 30 December 2025
Bibliometric and Visualization Analysis of Path Planning and Trajectory Tracking Research for Autonomous Vehicles from 2000 to 2025
Bo Niu
,Roman Y. Dobretsov
Posted: 30 December 2025
Autoformer-Based Sales and Inventory Forecasting for Cross-Border E-Commerce: A Time Series Deep Learning Approach
Tianran Li
,Xinyu Li
,Yuanliang Qu
Posted: 30 December 2025
Progress in Clinical Magnetocardiography: The Contactless Breakthrough for Non-Invasive Clinical Detection of Cardiac Ischemia Now Needs Worldwide Standardization
Riccardo Fenici
,Marco Picerni
,Peter Fenici
,Donatella Brisinda
Posted: 30 December 2025
Clinical Validation of the SuraSole® Smart Insole as a Portable Alternative to Laboratory-Based Gait Analysis
Thanaphum Laddachayaporn
,Dipak Kumar Agrawal
,Timporn Vitoonpong
,Pattarapol Yotnuengnit
,Supalak Luadlai
,Watcharin Jongpinit
Posted: 30 December 2025
A DEMATEL–ANP-Based Evaluation of AI-Assisted Learning in Higher Education
Galina Ilieva
,Tania Yankova
,Margarita Ruseva
,Stanislava Klisarova-Belcheva
Posted: 30 December 2025
Primary Culture and Identification of a Crucian Carp (Carassius auratus) Osteoblast Cell Line (COBCs) and the Effects of Hypoxia on Its Differentiation
Zaozao Guo
,Jiamin Liu
,Songlin Chen
,Guodong Zheng
,Shuming Zou
A reliable and reproducible method for the isolation, culture, and identification of an osteoblast cell line from crucian carp (Carassius auratus) was established in this study using vertebral bone tissue from Chongming crucian carp, a locally important aquaculture strain from the lower Yangtze River region. Osteoblast cells were isolated using a tissue explant culture method, and optimal in vitro culture conditions were systematically evaluated. The established osteoblast cell line, designated Chongming Carassius auratus osteoblast cells (COBC), was characterized through chromosomal karyotype analysis, osteocalcin enzyme-linked immunosorbent assay (ELISA), and osteogenesis-related gene expression analysis. Additionally, cellular responses to environmental stress were assessed. The results showed that COBC exhibited optimal proliferation in L-15 medium supplemented with 20% fetal bovine serum at 28 ℃ under 5% CO2. Alkaline phosphatase staining, Alizarin Red staining, and von Kossa staining all yielded positive results, thereby confirming that the isolated cells possessed typical and stable osteoblastic properties, with the osteocalcin content of 36,884 ng/L. Quantitative PCR analysis revealed that osteogenic marker genes, including runx2a and runx2b, were expressed at significantly higher levels in COBCs than in muscle tissue. Under hypoxia-reoxygenation stress, COBC exhibited enhanced apoptotic responses, marked alterations in related gene expression, and modulation of antioxidant enzyme activities, suggesting a certain degree of adaptive capacity to oxygen fluctuations. This study provides the first systematic description of the establishment and biological characterization of COBC, as well as its responses to hypoxic stress. These findings offer a valuable in vitro cell model and technical support for studies on fish bone tissue biology and the assessment of environmental stress effects.
A reliable and reproducible method for the isolation, culture, and identification of an osteoblast cell line from crucian carp (Carassius auratus) was established in this study using vertebral bone tissue from Chongming crucian carp, a locally important aquaculture strain from the lower Yangtze River region. Osteoblast cells were isolated using a tissue explant culture method, and optimal in vitro culture conditions were systematically evaluated. The established osteoblast cell line, designated Chongming Carassius auratus osteoblast cells (COBC), was characterized through chromosomal karyotype analysis, osteocalcin enzyme-linked immunosorbent assay (ELISA), and osteogenesis-related gene expression analysis. Additionally, cellular responses to environmental stress were assessed. The results showed that COBC exhibited optimal proliferation in L-15 medium supplemented with 20% fetal bovine serum at 28 ℃ under 5% CO2. Alkaline phosphatase staining, Alizarin Red staining, and von Kossa staining all yielded positive results, thereby confirming that the isolated cells possessed typical and stable osteoblastic properties, with the osteocalcin content of 36,884 ng/L. Quantitative PCR analysis revealed that osteogenic marker genes, including runx2a and runx2b, were expressed at significantly higher levels in COBCs than in muscle tissue. Under hypoxia-reoxygenation stress, COBC exhibited enhanced apoptotic responses, marked alterations in related gene expression, and modulation of antioxidant enzyme activities, suggesting a certain degree of adaptive capacity to oxygen fluctuations. This study provides the first systematic description of the establishment and biological characterization of COBC, as well as its responses to hypoxic stress. These findings offer a valuable in vitro cell model and technical support for studies on fish bone tissue biology and the assessment of environmental stress effects.
Posted: 30 December 2025
Does Localisation of BPIFB4 Support Its Proposed Function in Extending Healthy Longevity?
Colin Bingle
,Leon Maudgil
,Oluwatimilehin Babajide
Posted: 30 December 2025
DK-PRACTICE: An Intelligent Platform for Knowledge Tracing and Educational Content Recommendation. A Case Study in Higher Education
Marina Delianidi
,Konstantinos Diamantaras
,Georgios Kokkonis
,Antonis Sidiropoulos
,Georgios Evangelidis
,Dimitrios Karapiperis
Posted: 30 December 2025
Is Weniger's Transformation Capable to Simulate Stieltjes Function Branch Cut?
Riccardo Borghi
Posted: 30 December 2025
Ionospheric Response to the Geomagnetic Storm of November 12-14, 2025, Based on Multiparameter Analysis of Data from the LAERT Topside Sounder
Sergey Pulinets
,Nadezhda Kotonaeva
,Victor Depuev
,Konstantin Tsybulya
Posted: 30 December 2025
Engineered Microbes Transforming Immune Modulation Across Cancer, Autoimmunity, and Infection
Ola A Al-Ewaidat
,Moawiah M Naffaa
Posted: 30 December 2025
Raman Spectroscopy of Protein-Polysaccharide Conjugates: A Comparative Study of Tree-Based Ensemble Models
Oksana A. Mayorova
,Mariia S. Saveleva
,Ekaterina S. Prikhozhdenko
Posted: 30 December 2025
Periosteal Sutures Versus Titanium Tacks for Guided Bone Regeneration in the Aesthetic Zone: A Pilot Randomized Controlled Trial
Patricio Neira
,Franz Josef Strauss
,Ximena Moreno
,Franco Miquio
,Yakov Caric
,Franco Cavalla
Posted: 30 December 2025
Investigating the Role of IoT in Improving Supply Chain Resilience, Risk Management, and Operational Efficiency
Harry Johnson
Posted: 30 December 2025
Numerical Study of the Dynamic Loads Observed in the Drive Units of Scraper Conveyors Featuring an Innovative Clutch
Mariusz Kuczaj
,Eryk Remiorz
,Krzysztof Filipowicz
,Andrzej Norbert Wieczorek
,Rafał Burdzik
,Arkadiusz Pawlikowski
For many years, the hard coal mining industry has been searching for engineering solutions ensuring greater reliability of the machines operating in difficult underground conditions. The foregoing applies in particular to the scraper conveyors used in longwall systems, started up very frequently and exposed to variable dynamic loads, leading to accelerated wear of powertrain components. The authors of this study have developed a longwall scraper conveyor equipped with a torsionally flexible metal clutch of novel design. The article provides a description of a mathematical model of a conveyor featuring two centrally arranged chains along with a main (discharge) and auxiliary (return) drive, as well as results of the computer simulations performed for two variants of the drive system setup analysed: one with a typical flexible clutch and the other with the innovative torsionally flexible clutch. Analysis of these results has revealed that the solution proposed significantly reduces the amplitude of dynamic loads, which contributes to increased durability and reliability of conveyors under mining conditions.
For many years, the hard coal mining industry has been searching for engineering solutions ensuring greater reliability of the machines operating in difficult underground conditions. The foregoing applies in particular to the scraper conveyors used in longwall systems, started up very frequently and exposed to variable dynamic loads, leading to accelerated wear of powertrain components. The authors of this study have developed a longwall scraper conveyor equipped with a torsionally flexible metal clutch of novel design. The article provides a description of a mathematical model of a conveyor featuring two centrally arranged chains along with a main (discharge) and auxiliary (return) drive, as well as results of the computer simulations performed for two variants of the drive system setup analysed: one with a typical flexible clutch and the other with the innovative torsionally flexible clutch. Analysis of these results has revealed that the solution proposed significantly reduces the amplitude of dynamic loads, which contributes to increased durability and reliability of conveyors under mining conditions.
Posted: 30 December 2025
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