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Rok 2025
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Calculations of Cross-Sections for Positron Scattering on Benzene
PublikacjaIn this work, we present a theoretical study on positron scattering by benzene molecules over a broad energy range (1–1000 eV). The aim of this work is to provide missing data from partial cross-sections for specific processes. In particular, calculations of cross-sections for direct ionization and electronic excitation were carried out for benzene molecules in the gas phase. An estimate for the cross-section for positronium formation...
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Case study - klucz do efektywnej edukacji
PublikacjaCelem artykułu jest omówienie stu dium przypadku jako narzędzia dydak tycznego oraz przedstawienie procesu jego tworzenia na przykładzie materia łów dydaktycznych pod tytułem Prak tyczne wyzwania edukacji menadżerskiej: zbiór casów dydaktycznych, opubliko wanych przez Wydawnictwo Politech niki Gdańskiej1. Są one efektem pracy z grupą studentów Wydziału Zarządza nia i Ekonomii PG w ramach projektu 102 „Akademia Studium Przypadku”....
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CeO2/La2O3/MWCNTs as an efficient nano-electrocatalyst for use in the anode of alcohol fuel cells
PublikacjaOne of the most important challenges in commercializing Direct Alcohol Fuel Cells (DAFCs) is the significant expense of advanced catalysts used in their anodes and cathodes and the CO poisoning of these catalysts with alcohol oxidation by-products. Alcohols oxidation reaction occurred in the anode of DAFCs. Within this study, a tripartite catalyst, comprising cerium oxide (CeO2) and lanthanum oxide (La2O3) integrated with multi-walled...
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Cervical spine injuries during car collisions with three types of roadside barriers
PublikacjaTraditional methods for assessing vehicle passenger safety in crash tests involving roadside barriers rely on safety indices derived from vehicle kinematic responses. However, this approach may not accurately capture the complex biomechanical stresses exerted on the human body during a collision, raising concerns about the validity and reliability of these indices in accurately evaluating passenger safety. This study investigates...
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Challenges and Current Trends in Preventing Antimicrobial Resistance in EU Water Law Context
PublikacjaThe increasing consumption of pharmaceuticals, including antibiotics, and their improper disposal have resulted in both pharmaceuticals and their metabolites being released into the environment, where they pose a risk to both ecosystems and human health. One of the most serious threats to public health associated with the presence of antibiotics in the environment is antimicrobial resistance (AMR). In order to combat AMR, the legal...
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Changes in Enterprise Markets in Poland and Ukraine during the COVID-19 Pandemic
PublikacjaThis chapter also evaluates the effectiveness of government assistance provided in 2020 and 2021 to business owners and employees. Our study was conducted to determine how many companies failed, what industries these companies operated in, and where business growth occurred.
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Changes in the Concentration Profile of Selected Micro- and Macro-Elements in the Yellow Ligament Obtained from Patients with Degenerative Stenosis of the Lumbo-Sacral Spine
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Changes in the Expression Profile of Growth-Associated Protein 43 in Degenerative Lumbosacral Stenosis
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Characteristics Mode Analysis and Excitation of Orthogonal Modes on a Single Substrate for Wideband IoT Applications in the Millimeter Wave Band
PublikacjaThis paper presents the design of a circularly polarized millimeter-wave (mm-wave) metasurface (MTS) antenna. The Characteristics Modes Analysis (CMA) is employed to examine various modes within the unit-cell design of the proposed metasurface. Based on a thorough analysis, two orthogonal TM modes with a broadside radiation pattern were identified. These modes were then simultaneously excited on a single substrate using simple...
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Characteristics of AISI 420 And AISI 301 Stainless Steels Coatings Obtained by Thermal Spraying
PublikacjaIn this study, AISI 301 and AISI 420 stainless steels were deposited on an AISI 4135 substrate using the wire arc spray process (WASP). X-ray spectrum analysis revealed the presence of a body centred cubic (bcc) structure in both coatings. In particular, the AISI 301 coating showed the additional identification of chromium carbide Cr7C3. Conversely, the AISI 420 coating manifested the presence of a body centred cubic (Fe, Cr) structure,...
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Charging points in underground garages of multi-family buildings in Poland current status, challenges and development prospects
Publikacjahe article describes key aspects of the development of electric vehicle charging points in underground garages of multi-family buildings in Poland. It presents an analysis of current legal regulations. In legal matters, in addition to presenting the necessary steps, we recommend contacting a lawyer. We also present the results of load measurements of EV charging points
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Chemical composition and techno-functional properties of high-purity water-soluble keratein and its enzymatic hydrolysates
PublikacjaThis study compared the effectiveness of urea-containing and urea-free L-cysteine solutions in extracting high-quality feather keratin and evaluated commercial proteases for producing keratin-derived bioactive peptides. The urea-assisted extraction was crucial for achieving high structural integrity and yield of soluble keratin. The keratin isolate exhibited oil-holding capacity of 9.37 g/g, foaming capacity of up to 127 %, and...
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Chemical insight into pros and cons of coffees from different regions
PublikacjaThe main aim of this work was to study the chemical composition of eighteen ground coffees from different countries and continents with regard to the content of hazardous substances as radioactive elements (40K, 226Ra, 228Ra, 234U, 238U and 137Cs), metals, including heavy metals, aluminum and some microelements (V, Cr, Mn, Fe, Co, Ni, Cu, Zn) as well as substances that have a positive effect on human health and well-being (polyphenols,...
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Chemical Origins of Optically Addressable Spin States in Eu2(P2S6) and Eu2(P2Se6)
PublikacjaLanthanide materials with a 4f7 electron configuration (8S7/2) offer an exciting system for realizing multiple addressable spin states for qubit design. While the 8S7/2 ground state of 4f7 free ions displays an isotropic character, breaking degeneracy of this ground state and excited states can be achieved through local symmetry of the lanthanide and the choice of ligands. This makes Eu2+ attractive as it mirrors Gd3+ in exhibiting...
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Chitosan-coated coconut shell composite: A solution for treatment of Cr(III)-contaminated tannery wastewater
PublikacjaTannery industry generates a large amount of Cr(III)-contaminated wastewater daily. Unless properly treated, not only this effluent contaminates the water body, but also damages the environment and threatens public health. This batch study investigates the feasibility of chitosan-coated coconut shells as a low-cost material for removing Cr(III) from tannery wastewater. Both chitosan and coconut shell (CS) waste are abundantly available...
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Chitosan-Nanogold and Chitosan-Nanozinc Electrodeposited Coatings for Biomedical Applications
PublikacjaBacterial infections represent a significant challenge to the success rate of both short- and long-term titanium implants.Consequently, there is a persistent need for effective strategies to prevent such infections. In this study, chitosan-based coatingsmodified with gold or zinc nanoparticles, recognized for their antibacterial properties, were electrophoretically deposited (EPD)onto the Ti13Zr13Nb alloy and thoroughly characterized....
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Circular economy dynamics and country clusters: evidence for European countries
PublikacjaThis study examines trends in circular economy (CE) adoption across 27 European nations from 2012 to 2021. Two key objectives are explored: the evolution of cross-country disparities in CE practices and the identification of clusters with similar CE adoption patterns. Our analysis reveals a gradual convergence in CE adoption, which did not always lead to positive outcomes. Some countries improved recycling rates but saw increased...
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Circular economy in Poland: Good practices and recommendations – case study
PublikacjaThis review paper explores circular economy (CE) initiatives and Green Public Procurement (GPP) practices in Poland, focusing on practical implementation and regulatory frameworks. The concept of CE is explored in depth, focusing on its potential to mitigate climate change and resource depletion by extending product lifecycles and reducing waste generation. Transitioning to a CE model offers numerous environmental and economic...
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Cluster Glass Behavior and Magnetocaloric Effect in the Hexagonal Polymorph of Disordered Ce2PdGe3
PublikacjaIn this work, the hexagonal variant of the Ce2PdGe3 system is studied, which crystallizes in the AlB2-type structure (space group P6/mmm, hP3) and exhibits cluster spin-glass type behavior. The physical properties are studied by magnetization, heat capacity and electric resistivity, which showed that AlB2-type Ce2PdGe3 (h-Ce2PdGe3) can be classified as a cluster glass material with the freezing temperature Tf = 3.44 K in contrast...
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c-Myc inhibition and p21 modulation contribute to unsymmetrical bisacridines-induced apoptosis and senescence in pancreatic cancer cells
PublikacjaBackground Pancreatic cancer (PC) is one of the most aggressive cancers and is the seventh leading cause of cancer-related death worldwide. PC is characterized by rapid progression and resistance to conventional treatments. Mutations in KRAS, CDKN2A, TP53, SMAD4/DPC4, and MYC are major genetic alterations associated with poor treatment outcomes in patients with PC. Therefore, optimizing PC therapy is a tremendous challenge. Unsymmetrical...
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CO2 capture through Direct-Contact Condensation in a spray ejector condenser aided by a cyclone or T-junction separators
PublikacjaThis dissertation explores the vital task of separating and purifying CO2 in post-combustion sections of gas power plants. It focuses on integrating spray or steam ejector condenser with cyclone or T-junction separators to enhance CO2 capture through direct-contact condensation (DCC). The study employs experimental, analytical, and numerical techniques to understand DCC mechanisms within SEC and optimize separator performance....
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Co‐Creation in Automated Public Space Lighting Design: Enhancing Safety and Reducing Light Pollution
PublikacjaPublic space lighting in urban areas is a crucial issue linked to climate change in developed environments. It significantly influences aesthetics, functionality, and the sense of safety while also contributing to the problem of light pollution. However, addressing these challenges requires a balance between technical optimization and environmental considerations, which this study explores through an experimental approach. This...
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Coexistence of charge density wave and field-tuned magnetic states in TmNiC2
PublikacjaExploring the relations between coexisting, cooperative, or competing types of ordering is a key to identify and harness the mechanisms governing the mutual interactions between them and to utilize their combined properties. We have experimentally explored the response of the charge density wave (CDW) to various antiferromagnetic, metamagnetic, and field-aligned ferromagnetic states that constitute the magnetic phase diagram of...
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Collaborative Learning as a Service – a Blueprint for a Cloud Based Rural IoTs Deployment Facility.
PublikacjaVast spaces with inadequate telecommunications infrastructure pose a challenge to deploy IoT systems. A tech stack is proposed and implemented on TASKcloud at Gdansk Tech, based on widely available open-source technology components, making it possible to deploy various machine learning models developed on the cloud to constrained end devices, to make them capable of intelligently cleaning measurement data and optimizing their volume...
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Comammox Nitrospira dominates the nitrifying bacterial community in the external canister biofilter in the tank fish farm
PublikacjaPortable canister filters are often used in aquaria or smaller recirculating aquaculture systems (RAS). However, the microbiome of these canister filters, especially the presence of comammox bacteria, has not been extensively studied. The aim of this study was to explain the mechanisms of nitrogen transformation, with a focus on the comammox process, in a portable filter under varying organic compound availability. Biomass samples...
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Comment on "Study of perovskite JDCl3 (J = Fr, and D = Ca, Sr, Ge, Sn) materials for smart window and optoelectronic applications: A computational predictions” J. Phys. Chem. Solids 205 (2025) 112771
PublikacjaIn their recent article Shoukat Hussain et al. 1 report the results of their density functional theory (DFT) calculations on a series of four Francium-bearing cubic perovskite materials FrDCl3 (D = Ca, Sr, Ge, Sn), discussing their possible applications for smart windows and optoelectronics. In this comment, I highlight the issue of Fr instability that completely undermines the applicability of any Fr-based materials.
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Communication of luxury brands: an analysis of Ralph Lauren, Loro Piana and Louis Vuitton - case study
PublikacjaThe article presents an introduction to the concept of communication that focuses on the luxury brands such as Ralph Lauren, Loro Piana and Louis Vuitton, based on the available literature on the subject. The article describes comprehensive communication that can be used in the luxury brands. The publication begins with an indication of the communication concept in the light of current literature...
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Communication of luxury brands based on Vogue, Harper's Bazaar and L'Officiel - case study
PublikacjaThe article presents an introduction to the concept of luxury brands and the way they communicate in a fashion and design magazines based on the available literature of the subject. The article describes comprehensive communication and marketing tools that can be used in practice. The publication begins with an indication of fashion industry in the light of current literature on the subject, an explanation...
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Communication strategies on the example of luxury brands as Armani, Dior and Yves Saint Laurent - case study
PublikacjaThe article presents an introduction to the concept of communication that focuses on the luxury brands such as Armani, Dior and Yves Saint Laurent, based on the available literature on the subject. The article describes comprehensive communication that can be used in the luxury brands. The publication begins with an indication of the communication concept in the light of current literature on the...
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Compact Self-Diplexing MIMO Antenna with Improved Isolation for IoT Connectivity
PublikacjaThis paper proposes a cavity-backed substrate integrated-waveguide dual-feed self-diplexing MIMO antenna for Internet of Things (IoT) applications. To implement a selfdiplexing operation, the half-mode SIW cavity is loaded with a rectangular slot carved on the top metal cladding. This causes the cavity to be divided into two unequal apertures, resulting in the development of a quarter-mode SIW. The patch has orthogonally positioned...
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Company culture matters! Knowledge-driven companies' way to innovations and sustainability
PublikacjaCompanies today aim to adapt to rapidly changing business environments by acquiring knowledge, developing dynamic capabilities, fostering market innovations, and ensuring sustainability. Achieving these goals requires a supportive company culture aligned with its structure and strategy. This study proves the critical role of company culture in sustainability based on a sample of 496 Polish knowledge workers, using structural equation...
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Comparative Analysis of Entrepreneurial Intention Among Students: A Cross-Country Study
PublikacjaEntrepreneurial intention (EI) is a predictor of entrepreneurial behavior. In past years, it received significant attention due to the numerous advantages of entrepreneurial activities. The formation of EI within diverse international settings has been studied by researchers; however, the results of these studies are still inconclusive. Building on the Theory of Planned Behavior (TPB), this study aims to shed light on how EI is...
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Comparative assessment of entire bending-torsion fracture surface for 10HNAP steel using different optical measurement techniques
PublikacjaThis research aims to compare two microscopic measurement techniques: Confocal and Focus Variation, for the assessment of the entire fracture surface method. The measurements were conducted using the Sensofar S Neox 3D and Alicona InfiniteFocus G4 optical profilometers. Surface parameters were assessed for the entire fracture regions of the 10HNAP structural steel ring V-notched specimen. Fatigue test were performed under combination...
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Comparative study of bisphenols in e-cigarette liquids: evaluating fabric phase sorptive extraction, ultrasound-assisted membrane extraction, and solid phase extraction techniques
PublikacjaTo address the under-researched risk of bisphenols (BPs) in e-cigarette liquids, comprehensive studies have been conducted to propose optimum sample preparation and analysis methods. To determine twelve BPs in refill liquids for e-cigarettes, three sample preparation methods based on distinct operational and working principles were employed. These included fabric phase sorptive extraction (FPSE), ultrasound-assisted solvent extraction...
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Comparing Indian and Western media reports on the “BRICS Summit 2024 and India's Participation”
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Comparing Learning Outcomes in Traditional and Gamified Lecture Formats
PublikacjaThis paper presents a comparative study of student learning outcomes achieved through two distinct approaches to lecture-based education in a technical university setting. The first group of students participated in traditional lectures and completed a final written test as their primary method of assessment. The second group experienced a gamified lecture format, which incorporated elements of educational gamification and required...
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Comparison and analysis of software and hardware energy measurement methods for a CPU+GPU system and selected parallel applications
PublikacjaIn this paper authors extend upon their previous research on power-capped optimization of performance-energy metrics of deep neural networks training workloads. A professional power meter Yokogawa WT-310E is used, as well as Intel RAPL and Nvidia NVML interfaces, to examine power consumption of a much more comprehensive set of multi-GPU and multi-CPU workloads, including: selected kernels from NAS Parallel Benchmarks for CPUs and...
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Comparison of battery technologies, size, and charging strategies for inter-city in–motion-charging buses
PublikacjaThe growth of suburbs is a challenge for public transport, and new tools are needed to electrify suburban and intercity bus lines sustainably. In-motion-charging (IMC) buses combine the advantages of both trolleybuses and electric buses. This paper analyses a case of using IMC buses on a 17-km-long intercity route service between Arnhem and Wageningen in the Netherlands. The analysis covers different traction battery technologies,...
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Comparison of methods for diagnosing marine IC engines based on working medium parameters including exhaust gas specific enthalpy
PublikacjaArticle points out methods currently used to diagnose marine engines in operation. The development of tools and programs for implementing these methods was pointed out. The problem of unsatisfactory measurement susceptibility of marine engines was highlighted. Three methods of parametric diagnosis are presented: measurement of in-cylinder parameters and in exhaust gas duct, numerical simulation due to computer software and calculations...
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Competing charge density wave phases in YNiC2
PublikacjaCharge density wave (CDW) orders in YNiC2 are studied by means of combined experimental and computational techniques. On the experimental side, single crystals grown by the floating-zone method were examined by means of x-ray diffraction, as well as transport and thermal techniques. Density functional theory (DFT) calculations founded on the experimentally determined parent and CDW-modified crystal structures provide details of...
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Compressive and tensile properties of polyurethane foam mimicking trabecular tissue in artificial femoral head bones
PublikacjaThe presented study aimed to examine the compressive and tensile behavior of the polyurethane foams mimicking trabecular tissue in the artificial human femurs and assess their potential to replicate osteoporotic type of human bone tissue. Two types of Synbone femur models: one of the normal density (model 2350) and one of the lower density (model LD2350), and three types of Sawbones femur models (model 1130-21-8, 1130-21-3, 1130-192)...
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Computational model of the formation of novel nitronorbornene analogs via Diels–Alder process
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Concept and Implementation of Innovative Scalable Wind Turbine Emulator with Doubly Fed Asynchronous Machine
PublikacjaThis paper presents the design of an innovative scalable wind turbine emulator. The system’s hardware and software components are described in detail including test results, demonstrating the research potential of the proposed design. The uniqueness of the proposed solution lies in its scalability, achieved despite the use of physical devices with fixed parameters. This scalability allows for the flexible shaping of the system’s...
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CONDITIONS AND CONSEQUENCES OF QUALITY DEVELOPMENT – FROM QUALITY 4.0 TO 5.0
PublikacjaPurpose: To present the essence, advantages and threats of Quality 4.0 and Quality 5.0 and to indicate further development directions of quality management concepts. Design/methodology/approach: The research methods used are a thematic review of literature on research on Quality 4.0 and 5.0 and surveys conducted among companies with certified quality management systems in the region of southeastern Poland. Findings: The challenges...
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Conductive Hydrogels: Bioelectronics and Environmental Applications
PublikacjaFlexible multimodal sensors have garnered continued attention due to their tunable structural performance and sensitivity to electric signals, adaptability to various environments, and outstanding mechanical properties. However, the limited self-healing capabilities, degradation, and reversible self-adhesion of sensors made from rubbers, elastomers, and other polymers have hindered their widespread application. Flexible sensors...
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Cone calorimetry ranking of unsaturated polyester thermoset resins using Flame Retardancy Index (FRI)
PublikacjaUnsaturated polyester resins (UPRs) are versatile thermosetting materials available in a wide range from general-purpose (e.g., construction) to advanced (e.g., aerospace) materials. UPRs are best known for their promising mechanical and solvent-resistive properties, but they are highly flammable necessitating reinforcing with flame retardants (FRs). In this paper, composites of UPRs are ranked as of Poor, Good or Excellent, based...
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Conflicting Demands of Sustainable Digital Transformation
PublikacjaChapter Nine goes into the paradoxes of digital transformation, aiming to explain the complexities of implementing digital transformation. In the context of exploring paradoxes, this chapter unveils the contradictory nature of sustainable digital transformation, analyzing how the balance between innovation and sustainability generates unique threats and opportunities. The novelty of undertaking this chapter relates to determining...
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Control structures of Doubly-Fed Induction Generator connected to Current Source Converter
PublikacjaThe control of Doubly-Fed Induction Generator can be achieved through various techniques. At present, many works published in the literature show the application of Voltage Source Converter in conjunction with Doubly-Fed Induction Generator. Recently published articles rarely involve the operational characteristics and technical aspects of the Doubly-Fed Induction Generator - Current Source Converter systems. The dissertation presents...
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Converging Paths? Co-creation practices in public services in Poland and Ukraine
PublikacjaThis study investigates how co-creation is being institutionalized in public service delivery in Poland and Ukraine, focusing on six domains of citizen involvement: legislative frameworks, digital platforms, public consultations, civic monitoring, local initiatives, and civic education. These neighboring countries, connected through shared regional initiatives but shaped by differing...
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Coordination of planning regulations at the edge of water and land. Conflicts within planning policy for urban blue space in small and medium-sized Polish port cities and possible directions of change
PublikacjaLand-sea integration is crucial for effective marine spatial planning and coastal zone management. Coordination of marine and land planning should ensure ecological sustainability of the coastal area, enable cross-coast investments and promote well-being of the society. A critical element for achieving sustainable development of marine and coastal area is the integration of marine and land planning on the verge of sea waters and...