Rok 2023

• 3D Metamaterial Ultra-Wideband Absorber for curved surface

  Publikacja

  • M. Norouzi
  • S. Jarchi
  • M. Miab
  • M. Esfandiari
  • A. Lalbakhsh
  • S. Kozieł
  • S. Reisenfeld
  • G. Moloudian

  - Scientific Reports - Rok 2023

  This paper proposes a three-dimensional metamaterial absorber based on a resistive film patch array to develop a low-cost, lightweight absorber for curved surfaces. An excellent absorption over a large frequency band is achieved through two different yet controllable mechanisms; In the first mechanism, a considerable attenuation in the wave power is achieved via graphite resistive films. The absorption is then intensified through...

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• Antibiotic-sterol interactions provide insight into the selectivity of natural aromatic analogues of amphotericin B and their photoisomers

  Publikacja

  • J. Borzyszkowska-Bukowska
  • J. Czub
  • P. Szczeblewski
  • T. Laskowski

  - Scientific Reports - Rok 2023

  Aromatic heptaene macrolides (AHMs) belong to the group of polyene macrolide antifungal antibiotics. Members of this group were the first to be used in the treatment of systemic fungal infections. Amphotericin B (AmB), a non-aromatic representative of heptaene macrolides, is of significant clinical importance in the treatment of internal mycoses. It includes the all-trans heptaene chromophore, whereas the native AHMs contain two...

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• Arsenic causing gallbladder cancer disease in Bihar

  Publikacja

  • A. Kumar
  • M. Ali
  • V. Raj
  • A. Kumari
  • M. Rachamalla
  • S. Niyogi
  • D. Kumar
  • A. Sharma
  • A. Saxena
  • G. Panjawani... i 12 innych

  - Scientific Reports - Rok 2023

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• Buckling and shape control of prestressable trusses using optimum number of actuators

  Publikacja

  • A. Manguri
  • N. Saeed
  • M. Szczepański
  • R. Jankowski

  - Scientific Reports - Rok 2023

  This paper describes a method to control the nodal displacement of prestressable truss structures within the desired domains. At the same time, the stress in all members is unleashed to take any value between the allowable tensile stress and critical buckling stress. The shape and stresses are controlled by actuating the most active members. The technique considers the members’ initial crookedness, residual stresses, and slenderness...

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• Buried Object Characterization by Data-Driven Surrogates and Regression-Enabled Hyperbolic Signature Extraction

  Publikacja

  • R. Yurt
  • H. Torpi
  • A. Kizilay
  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • P. Mahouti

  - Scientific Reports - Rok 2023

  This work addresses artificial-intelligence-based buried object characterization using FDTD-based electromagnetic simulation toolbox of a Ground Penetrating Radar (GPR) to generate B-scan data. In data collection, FDTD-based simulation tool, gprMax is used. The task is to estimate geophysical parameters of a cylindrical shape object of various radii, buried at different positions in the dry soil medium simultaneously and independently...

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• Comparison of various flow maldistribution quantification methods in mini heat exchangers

  Publikacja

  • P. Dąbrowski

  - Scientific Reports - Rok 2023

  The aim of study is to compare various flow maldistribution quantification methods, using velocity, mass flow rate, pressure, and temperature. An experimentally validated numerical study has been prepared and a heat exchanger with 34 semi-circular channels with a diameter of 3.1 mm has been tested. The minichannels were heated from the bottom with a heat flux of 50, 60, 70, and 80 kW/m2. The cases for various inlet velocities of...

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• Computationally-Efficient Statistical Design and Yield Optimization of Resonator-Based Notch Filters Using Feature-Based Surrogates

  Publikacja

  • S. Kozieł
  • T. Haq Ul

  - Scientific Reports - Rok 2023

  Modern microwave devices are designed to fulfill stringent requirements pertaining to electrical performance, which requires, among others, a meticulous tuning of their geometry parameters. When moving up in frequency, physical dimensions of passive microwave circuits become smaller, making the system performance increasingly susceptible to manufacturing tolerances. In particular, inherent inaccuracy of fabrication processes affect...

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• Cylindrical orifice testing in laminar flow with the orifice diameter ratio β = 0.5

  Publikacja

  • A. Golijanek-Jędrzejczyk
  • A. Mrowiec

  - Scientific Reports - Rok 2023

  The paper presents the results of an experimental study of a cylindrical orifice with the orifice diameter ratio β = 0.5 and the flow opening length‑to‑diameter ratio L/d = 1, with hydraulic oil flowing in the DN50 measuring channel. The measurements of the values characterising the oil flow were made in the laminar flow regime, for the Reynolds numbers ranging between Re = 100 to 950. Based on the experimental tests, standard...

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• Deep-Learning-Based Precise Characterization of Microwave Transistors Using Fully-Automated Regression Surrogates

  Publikacja

  • N. Calik
  • F. Gunes
  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • M. Belen
  • P. Mahouti

  - Scientific Reports - Rok 2023

  Accurate models of scattering and noise parameters of transistors are instrumental in facilitating design procedures of microwave devices such as low-noise amplifiers. Yet, data-driven modeling of transistors is a challenging endeavor due to complex relationships between transistor characteristics and its designable parameters, biasing conditions, and frequency. Artificial neural network (ANN)-based methods, including deep learning...

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• Effectiveness of various types of coating materials applied in reinforced concrete exposed to freeze–thaw cycles and chlorides

  Publikacja

  • G. Millan Ramirez
  • M. Niedostatkiewicz
  • H. Byliński

  - Scientific Reports - Rok 2023

  This study assesses the durability of coated and uncoated concrete surfaces protected with four Different coating materials: water-soluble (BW), solvent-based (BR), mineral (MI), and epoxy (EP). The durability assessment includes evaluating the absorption rate of water, pull-of adhesion strength, and coating material thickness. Concrete samples were subjected to immersion in regular water and a 7% urea solution, followed by cyclic...

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• Effects of whole-body vibration warm-up on subsequent jumping and running performance

  Publikacja

  • P. Ewertowska
  • K. Świtała
  • W. Grzyb
  • R. Urbański
  • P. Aschenbrenner
  • M. Krzysztofik

  - Scientific Reports - Rok 2023

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• Evaluation of long‑term immunity and protection against T. gondii after immunization with multivalent recombinant chimeric T. gondii proteins

  Publikacja

  • M. Chyb
  • B. Dziadek
  • K. Dzitko
  • B. T. Ferra
  • M. Kawka
  • L. Holec-Gąsior
  • J. Gatkowska

  - Scientific Reports - Rok 2023

  Toxoplasmosis caused by the opportunistic, cosmopolitan protozoan Toxoplasma gondii is one of the most common parasitoses in the world. Although it may prove dangerous or even fatal for immunocompromised individuals, immunoprophylaxis for humans is still nonexistent. Thus, the aim of the current work was to assess the ability of two immunogenic recombinant chimeric T. gondii proteins, SAG2-GRA1-ROP1 (SGR) and SAG1-MIC1-MAG1-GRA2...

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• Evaluation of the yield, chemical composition and biological properties of essential oil from bioreactor-grown cultures of Salvia apiana microshoots

  Publikacja

  • A. Krol
  • A. Kokotkiewicz
  • M. Gorniak
  • A. M. Naczk
  • B. Zabiegała
  • J. Gebalski
  • F. Graczyk
  • D. Zaluski
  • A. Bucinski
  • M. Luczkiewicz

  - Scientific Reports - Rok 2023

  Microshoot cultures of the North American endemic Salvia apiana were established for the first time and evaluated for essential oil production. Stationary cultures, grown on Schenk-Hildebrandt (SH) medium, supplemented with 0.22 mg/L thidiazuron (TDZ), 2.0 mg/L 6-benzylaminopurine and 3.0% (w/v) sucrose, accumulated 1.27% (v/m dry weight) essential oil, consisting mostly of 1,8-cineole, β-pinene, α-pinene, β-myrcene and camphor....

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• Exploring the influence of personal factors on physiological responses to mental imagery in sport

  Publikacja

  • D. Budnik-Przybylska
  • P. Syty
  • M. Kaźmierczak
  • M. Łabuda
  • Ł. Doliński
  • A. Kastrau
  • P. Jasik
  • J. Przybylski
  • S. di Fronso
  • M. Bertollo

  - Scientific Reports - Rok 2023

  Imagery is a well-known technique in mental training which improves performance efficiency and influences physiological arousal. One of the biomarkers indicating the amount of physiological arousal is skin conductance level (SCL). The aim of our study is to understand how individual differences in personality (e.g. neuroticism), general imagery and situational sport anxiety are linked to arousal measuring with SCL in situational...

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• GIS-based hydrodynamic modeling for urban flood mitigation in fast-growing regions: a case study of Erbil, Kurdistan Region of Iraq

  Publikacja

  • A. M. Mustafa (dawniej: A. Mustafa)
  • M. Szydłowski
  • M. Veysipanah
  • H. M. Hameed

  - Scientific Reports - Rok 2023

  Floods threaten urban infrastructure, especially in residential neighborhoods and fast-growing regions. Flood hydrodynamic modeling helps identify flood-prone locations and improve mitigation plans' resilience. Urban floods pose special issues due to changing land cover and a lack of raw data. Using a GIS-based modeling interface, input files for the hydrodynamic model were developed. The physical basin's properties were identified...

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• Influence of proton irradiation on the magnetic properties of two-dimensional Ni(II) molecular magnet

  Publikacja

  • M. Perzanowski
  • D. Czernia
  • P. Konieczny
  • E. Juszyńska-Gałązka
  • J. Lekki

  - Scientific Reports - Rok 2023

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• Knowledge-Based Expedited Parameter Tuning of Microwave Passives by Means of Design Requirement Management and Variable-Resolution EM Simulations

  Publikacja

  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • A. Raef

  - Scientific Reports - Rok 2023

  The importance of numerical optimization techniques has been continually growing in the design of microwave components over the recent years. Although reasonable initial designs can be obtained using circuit theory tools, precise parameter tuning is still necessary to account for effects such as electromagnetic (EM) cross coupling or radiation losses. EM-driven design closure is most often realized using gradient-based procedures,...

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• Low-volume label-free SARS-CoV-2 detection with the microcavity-based optical fiber sensor

  Publikacja

  • M. Janik
  • T. Gabler
  • M. Koba
  • M. Panasiuk
  • Y. Dashkevich
  • T. Łęga
  • A. Dąbrowska
  • A. Naskalska
  • S. Żołędowska
  • D. Nidzworski... i 3 innych

  - Scientific Reports - Rok 2023

  Accurate and fast detection of viruses is crucial for controlling outbreaks of many diseases; therefore, to date, numerous sensing systems for their detection have been studied. On top of the performance of these sensing systems, the availability of biorecognition elements specific to especially the new etiological agents is an additional fundamental challenge. Therefore, besides high sensitivity and selectivity, such advantages...

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• Magnetic signature reproduction of ferromagnetic ships at arbitrary geographical position, direction and depth using a multi-dipole model

  Publikacja

  • M. Wołoszyn
  • J. Tarnawski

  - Scientific Reports - Rok 2023

  The reproduction of magnetic signatures is an important issue concerning the safety of ship traffic, as well as the identification and classification of vessels. Moreover, military applications of magnetic signatures and their reproduction refer to the activation or protection against activation of magnetic naval mines. Previous works on this subject focused on recording and replicating the signatures under the same conditions...

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• Micro‑ and nano‑ bentonite to improve the strength of clayey sand as a nano soil‑improvement technique

  Publikacja

  • M. Cheraghalikhani
  • H. Niroumand,
  • L. Bałachowski

  - Scientific Reports - Rok 2023

  Nano-additives results in the formation of nano-cementation (NC). This process is recently used to improve the durability of various building materials. NC used to improve the strength of untreated soil materials, also known as nano soil-improvement (NSI). In few years, the role of nano-additives in various types of soils were developed. In this research, the role of micro- and nano- size of bentonite as soil stabilizer was evaluated...

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• Nano soil improvement technique using cement

  Publikacja

  • H. Niroumand,
  • L. Bałachowski
  • R. Parviz

  - Scientific Reports - Rok 2023

  Nano soil-improvement is an innovative idea in geotechnical engineering. Nanomaterials are among the newest additives that improve soil properties. Herein, laboratory tests, such as unconfined compressive strength, direct shear test, and initial tests, were conducted to investigate the geotechnical properties of Kelachay clay with micro- and nanosized cement to evaluate its particles in untreated soil and observe changes in the...

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• New, fast and cheap prediction tests for BRCA1 gene mutations identification in clinical samples.

  Publikacja

  • A. Gajda-Walczak
  • A. Potęga
  • A. Kowalczyk
  • S. Sęk
  • S. Zięba
  • A. Kowalik
  • A. Kudelski
  • A. M. Nowicka

  - Scientific Reports - Rok 2023

  Despite significant progress in cancer therapy, cancer is still the second cause of mortality in the world. The necessity to make quick therapeutic decisions forces the development of procedures allowing to obtain a reliable result in a quick and unambiguous manner. Currently, detecting predictive mutations, including BRCA1, is the basis for effectively treating advanced breast cancer. Here, we present new insight on gene mutation...

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• New light on the photocatalytic performance of NH4V4O10 and its composite with rGO

  Publikacja

  • M. Nadolska-Dawidowska
  • M. Szkoda
  • K. Trzciński
  • J. Ryl
  • A. Lewkowicz
  • K. Sadowska
  • J. Smalc-Koziorowska
  • M. Prześniak-Welenc

  - Scientific Reports - Rok 2023

  Solar-driven photocatalysis has shown great potential as a sustainable wastewater treatment technology that utilizes clean solar energy for pollutant degradation. Consequently, much attention is being paid to the development of new, efficient and low-cost photocatalyst materials. In this study, we report the photocatalytic activity of NH4V4O10 (NVO) and its composite with rGO (NVO/rGO). Samples were synthesized via a facile one-pot...

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• Novel Versatile Topologies and Design Optimization of Wide-Bandstop Frequency Selective Surfaces for X-Band, Ku-Band and Millimeter-Wave Applications

  Publikacja

  • R. Aziz
  • S. Kozieł
  • L. Leifsson
  • S. Szczepański

  - Scientific Reports - Rok 2023

  Novel designs of frequency selective surface (FSS) are presented for wideband applications in X, Ku and mmWave (millimeter Wave) bands. Two identical metallic layers of FSS are imprinted on both sides of the RO4003 substrate. The geometry parameters are optimized to maximize the bandstop at the specified in-band maximum transmission level of –10 dB; satisfaction of the latter condition is enforced through appropriate formulation...

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• Numerical analysis of the ostiomeatal complex aeration using the CFD method

  Publikacja

  • D. Tretiakow
  • K. Tesch
  • K. Markiet
  • T. Przewoźny
  • A. Kusiak
  • D. Cichońska
  • A. Skorek

  - Scientific Reports - Rok 2023

  We aimed to analyse ostiomeatal complex (OMC) aeration using the computational fluid dynamics (CFD) method of simulation based on human craniofacial computed tomography (CT) scans. The analysis was based on CT images of 2 patients: one with normal nose anatomy and one with nasal septal deviation (NSD). The Reynolds-Average Simulation approach and turbulence model based on linear eddy viscosity supplemented with the two-equation...

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• On Nature-Inspired Design Optimization of Antenna Structures Using Variable-Resolution EM Models

  Publikacja

  • S. Kozieł
  • A. Pietrenko-Dąbrowska

  - Scientific Reports - Rok 2023

  Numerical optimization has been ubiquitous in antenna design for over a decade or so. It is indispensable in handling of multiple geometry/material parameters, performance goals, and constraints. It is also challenging as it incurs significant CPU expenses, especially when the underlying computational model involves full-wave electromagnetic (EM) analysis. In most practical cases, the latter is imperative to ensure evaluation reliability....

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• Optimal Design of Transmitarray Antennas via Low-Cost Surrogate Modelling

  Publikacja

  • M. Belen
  • A. Caliskan
  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • P. Mahouti

  - Scientific Reports - Rok 2023

  Over the recent years, reflectarrays and transmitarrays have been drawing a considerable attention due to their attractive features, including a possibility of realizing high gain and pencil-like radiation patterns without the employment of complex feeding networks. Among the two, transmitarrays seem to be superior over reflectarrays in terms of achieving high radiation efficiency without the feed blockage. Notwithstanding, the...

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• Psychometric properties of the Bern illegitimate tasks scale using classical test and item response theories

  Publikacja

  • B. Basińska
  • A. M. Daderman

  - Scientific Reports - Rok 2023

  Combining a classical test theory and an item response theory (IRT), this study aimed to investigate the psychometric properties of the Bern Illegitimate Tasks Scale (BITS) by measuring two conceptually separate dimensions capturing unnecessary tasks (perceived by employees as pointless) and unreasonable tasks (perceived as unfairly or inappropriately assigned). Data collected among Polish employees in two samples (N= 965 and N=...

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• Rapid and Reliable Re-Design of Miniaturized Microwave Passives by Means of Concurrent Parameter Scaling and Intermittent Local Tuning

  Publikacja

  • S. Kozieł
  • A. Pietrenko-Dąbrowska

  - Scientific Reports - Rok 2023

  Re-design of microwave passive components for the assumed operating frequencies or substrate parameters is an important yet a tedious process. It requires simultaneous tuning of relevant circuit variables, often over broad ranges thereof, to ensure satisfactory performance of the system. If the operating conditions at the available design are distant from the intended ones, local optimization is typically insufficient, whereas...

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• Rapid multi-criterial design of microwave components with robustness analysis by means of knowledge-based surrogates

  Publikacja

  • S. Kozieł
  • A. Pietrenko-Dąbrowska

  - Scientific Reports - Rok 2023

  Manufacturing tolerances and uncertainties concerning material parameters, e.g., operating conditions or substrate permittivity are detrimental to characteristics of microwave components. The knowledge of relations between acceptable parameter deviations (not leading to violation of design specifications) and the nominal performance (not considering uncertainties), and is therefore indispensable. This paper proposes a multi-objective...

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• Release systems based on self-assembling RADA16-I hydrogels with a signal sequence which improves wound healing processes

  Publikacja

  • M. Dzierżyńska
  • J. Sawicka
  • M. Deptula
  • P. Sosnowski
  • P. Sass
  • B. Peplińska
  • Z. Pietralik-Molińska
  • M. Fularczyk
  • F. Kasprzykowski
  • J. Zieliński... i 4 innych

  - Scientific Reports - Rok 2023

  Self-assembling peptides can be used for the regeneration of severely damaged skin. They can act as scaffolds for skin cells and as a reservoir of active compounds, to accelerate scarless wound healing. To overcome repeated administration of peptides which accelerate healing, we report development of three new peptide biomaterials based on the RADA16-I hydrogel functionalized with a sequence (AAPV) cleaved by human neutrophil elastase...

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• Road traffic can be predicted by machine learning equally effectively as by complex microscopic model

  Publikacja

  • A. Sroczyński
  • A. Czyżewski

  - Scientific Reports - Rok 2023

  Since high-quality real data acquired from selected road sections are not always available, a traffic control solution can use data from software traffic simulators working offline. The results show that in contrast to microscopic traffic simulation, the algorithms employing neural networks can work in real-time, so they can be used, among others, to determine the speed displayed on variable message road signs. This paper describes...

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• Sources of contamination in sediments of retention tanks and the influence of precipitation type on the size of pollution load

  Publikacja

  • K. Matej-Łukowicz
  • E. Wojciechowska
  • T. Kolerski
  • N. Nawrot
  • K. Kuliński
  • A. Winogradow

  - Scientific Reports - Rok 2023

  Densification of cities and urban population contributes to increased runoff and suspended solids and alteration of the urban water cycle. Nowadays, Blue-Green Infrastructure is promoted to increase a city’s resilience to floods; however, stormwater drainage systems, supported with retention tanks are still important in protecting urban areas against floods. Sediment accumulation in stormwater infrastructure relates to an issue...

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• The characterization of collagen‑based scaffolds modified with phenolic acids for tissue engineering application

  Publikacja

  • B. Kaczmarek-Szczepańska
  • I. Polkowska
  • M. Małek
  • J. Kluczyński
  • K. Paździor-Czapula
  • M. Wekwejt
  • M. Anna
  • A. Ronowska
  • A. Pałubicka
  • B. Nowicka
  • I. Otrocka-Domagała

  - Scientific Reports - Rok 2023

  The aim of the experiment was to study the morphology of collagen-based scaffolds modified by caffeic acid, ferulic acid, and gallic acid, their swelling, and degradation rate, as well as the biological properties of scaffolds, such as antioxidant activity, hemo- and cytocompatibility, histological observation, and antibacterial properties. Scaffolds based on collagen with phenolic acid showed higher swelling rate and enzymatic...

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• The interactions of monomeric acridines and unsymmetrical bisacridines (UAs) with DNA duplexes: an insight provided by NMR and MD studies

  Publikacja

  • T. Laskowski
  • M. Kosno
  • W. Andrałojć
  • J. Frąckowiak
  • J. Borzyszkowska-Bukowska
  • P. Szczeblewski
  • N. Radoń
  • M. Świerżewska
  • A. Woźny
  • E. Paluszkiewicz
  • Z. Mazerska

  - Scientific Reports - Rok 2023

  Members of a novel class of anticancer compounds, exhibiting high antitumor activity, i.e. the unsymmetrical bisacridines (UAs), consist of two heteroaromatic ring systems. One of the ring systems is an imidazoacridinone moiety, with the skeleton identical to the structural base of Symadex. The second one is a 1-nitroacridine moiety, hence it may be regarded as Nitracrine’s structural basis. These monoacridine units are connected...

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• Transformation of bimetallic Ag–Cu thin films into plasmonically active composite nanostructures

  Publikacja

  • M. S. Łapiński (dawniej: M. Łapiński)
  • R. Kozioł
  • W. Skubida
  • P. Winiarz
  • R. Mahjoub Yahia Elhassan
  • W. Sadowski
  • B. Kościelska

  - Scientific Reports - Rok 2023

  Formation of plasmonically active silver, copper and composite silver-copper nanostructures were studied in this paper. Metallic nanostructures were fabricated by thermal disintegration, so called dewetting, of the thin films in an argon atmosphere. The formation process of the nanostructures was in-situ observed by a novel method, based on resistance measurements. The influence of the material and thickness of the initial thin...

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• Virulence analysis and antibiotic resistance of Klebsiella pneumoniae isolates from hospitalised patients in Poland

  Publikacja

  • B. Kot
  • M. Piechota
  • P. Szweda
  • J. Mitrus
  • J. Wicha
  • A. Grużewska
  • M. Witeska

  - Scientific Reports - Rok 2023

  Klebsiella pneumoniae (KP) is a nosocomial pathogen causing difficult-to-treat infections. The presence of virulence genes and antibiotic resistance of 109 KP isolates from hospitalized patients were investigated. Among them, 68.8% were multi-drug resistant (MDR) and 59.6% produced extended-spectrum beta-lactamases (ESBLs). Metallo-β-lactamases (MBLs) were produced by 22% of isolates (mainly from anus), including 16.5% of isolates...

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• Xanthone synthetic derivatives with high anticandidal activity and positive mycostatic selectivity index values

  Publikacja

  • K. Rząd
  • R. Ioannidi
  • P. Marakos
  • N. Pouli
  • M. Olszewski
  • I. K. Kostakis
  • I. Gabriel

  - Scientific Reports - Rok 2023

  With the current massive increases in drug-resistant microbial infection as well as the significant role of fungal infections in the death toll of COVID-19, discovering new antifungals is extremely important. Natural and synthetic xanthones are promising derivatives, although only few reports have demonstrated their antifungal mechanism of action in detail. Newly synthetized by us xanthone derivative 44 exhibited strong antifungal...

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Rok 2022

• Algoritmically improved microwave radar monitors breathing more acurrate than sensorized belt

  Publikacja

  • A. Czyżewski
  • B. Kostek
  • A. Kurowski
  • K. Narkiewicz
  • B. Graff
  • P. Odya
  • T. Śmiałkowski
  • A. Sroczyński

  - Scientific Reports - Rok 2022

  This paper describes a novel way to measure, process, analyze, and compare respiratory signals acquired by two types of devices: a wearable sensorized belt and a microwave radar-based sensor. Both devices provide breathing rate readouts. First, the background research is presented. Then, the underlying principles and working parameters of the microwave radar-based sensor, a contactless device for monitoring breathing, are described....

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• An analytical four-layer horizontal electric current dipole model for analysing underwater electric potential in shallow seawater

  Publikacja

  • M. Wołoszyn
  • K. Buszman
  • T. A. Rutkowski (dawniej: T. Rutkowski)
  • J. Tarnawski
  • J. F. Rodrigo Saura

  - Scientific Reports - Rok 2022

  The paper presents a new analytical four‑layer (air–water–bottom–non‑conductive layer) horizontal electric dipole model which allows an accurate approximation of ship’s Underwater Electric Potential (UEP) from a sufficient depth in shallow coastal marine waters. The numerical methods, usually Finite Element Method (FEM) or Boundary Elements Method (BEM), are typically used to estimate the electric field and the distribution of...

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• An Innovative Antenna Array with High Inter Element Isolation for Sub-6 GHz 5G MIMO Communication Systems

  Publikacja

  • M. Alibakhshikenari
  • B. S. Virdee
  • H. Benetatos
  • E. M. Ali
  • M. Soruri
  • M. Dalarsson
  • M. Naser-Moghadasi
  • C. H. See
  • A. Pietrenko-Dąbrowska
  • S. Kozieł (dawniej: M. Kozieł)... i 2 innych

  - Scientific Reports - Rok 2022

  A novel technique is shown to improve the isolation between radiators in antenna arrays. The proposed technique suppresses the surface-wave propagation and reduces substrate loss thereby enhancing the overall performance of the array. This is achieved without affecting the antenna’s footprint. The proposed approach is demonstrated on a four-element array for 5G MIMO applications. Each radiating element in the array is constituted...

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• An observability and detectability analysis for non-linear uncertain CSTR model of biochemical processes

  Publikacja

  • M. Czyżniewski
  • R. Łangowski

  - Scientific Reports - Rok 2022

  The problem of proving observability/detectability properties for selected non-linear uncertain model of biochemical processes has been addressed in this paper. In particular, the analysis of observability/detectability in the face of parametric and unstructured uncertainty in system dynamics transformed into unknown inputs, and unknown initial conditions has been performed. Various sets of system measured outputs were taken into...

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• Application of the 2-deoxyglucose scaffold as a new chiral probe for elucidation of the absolute configuration of secondary alcohols

  Publikacja

  • A. Trocka
  • S. Makowiec
  • K. Szwarc-Karabyka
  • T. Laskowski

  - Scientific Reports - Rok 2022

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• Application of the 2-deoxyglucose scaffold as a new chiral probe for elucidation of the absolute configuration of secondary alcohols

  Publikacja

  • A. Trocka
  • K. Szwarc-Karabyka
  • S. Makowiec
  • T. Laskowski

  - Scientific Reports - Rok 2022

  Herein, we present the application of 2-deoxy-D-glucose derivatives as chiral probes for elucidation of the absolute configuration of chiral secondary alcohols. The probes are attached to the studied molecules via glycosylation reaction and the resulting products are examined by a set of standard 2D NMR experiments. The absolute configuration of an oxymethine carbon atom binding the probe is established on a basis of a set of diagnostic...

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• Cattaneo–Christov heat flow model for copper–water nanofluid heat transfer under Marangoni convection and slip conditions

  Publikacja

  • K. A. K. M. Alharbi
  • N. M. Alshahrani
  • N. Ullah
  • M. N. Khan
  • M. Krawczuk
  • A. A. Mousa
  • S. Ali

  - Scientific Reports - Rok 2022

  This report is devoted to the study of the flow of MHD nanofluids through a vertical porous plate with a temperature-dependent surface tension using the Cattaneo–Christov heat flow model. The energy equation was formulated using the Cattaneo–Christov heat flux model instead of Fourier’s law of heat conduction. The Tiwari–Das model was used to take into account the concentration of nanoparticles when constructing the momentum equation....

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• Clinical studies of detecting COVID-19 from exhaled breath with electronic nose

  Publikacja

  • A. Kwiatkowski
  • S. Borys
  • K. Sikorska
  • K. Drozdowska
  • J. Smulko

  - Scientific Reports - Rok 2022

  The COVID‑19 pandemic has attracted numerous research studies because of its impact on society and the economy. The pandemic has led to progress in the development of diagnostic methods, utilizing the polymerase chain reaction (PCR) as the gold standard for coronavirus SARS‑CoV‑2 detection. Numerous tests can be used at home within 15 min or so but of with lower accuracy than PCR. There is still a need for point‑of‑care tests available...

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• COVID-19 infections in infants

  Publikacja

  • M. Sobolewska-Pilarczyk
  • M. Pokorska-Śpiewak
  • A. Stachowiak
  • M. Marczyńska
  • E. Talarek
  • A. Ołdakowska
  • I. Kucharek
  • A. Sybilski
  • A. Mania
  • M. Figlerowicz... i 18 innych

  - Scientific Reports - Rok 2022

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• Design specification management with automated decision-making for reliable optimization of miniaturized microwave components

  Publikacja

  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • P. Płotka

  - Scientific Reports - Rok 2022

  The employment of numerical optimization techniques for parameter tuning of microwave components has nowadays become a commonplace. In pursuit of reliability, it is most often carried out at the level of full-wave electromagnetic (EM) simulation models, incurring considerable computational expenses. In the case of miniaturized microstrip circuits, densely arranged layouts with strong cross-coupling effects make EM-driven tuning...

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• Design, synthesis, and biological evaluation of tetrahydroquinolinones and tetrahydroquinolines with anticancer activity

  Publikacja

  • M. Ryczkowska
  • N. Maciejewska
  • M. Olszewski
  • M. Witkowska
  • S. Makowiec

  - Scientific Reports - Rok 2022

  Colorectal cancer (CRC) is the most commonly diagnosed cancer in Europe and the United States and the second leading cause of cancer related mortality. A therapeutic strategy used for the treatment of CRC involves targeting the intracellular levels of reactive oxygen species (ROS). In this study, we synthesized a series of novel tetrahydroquinolinones and assessed their ability to inhibit CRC growth and proliferation by evoking...

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• Development of Safirinium dyes for new applications: fluorescent staining of bacteria, human kidney cells, and the horny layer of the epidermis

  Publikacja

  • J. Fedorowicz
  • D. Bazar
  • W. Brankiewicz
  • H. Kapica
  • K. Ciura
  • B. Zalewska-Piątek
  • R. Piątek
  • K. Cal
  • K. Mojsiewicz-Pieńkowska
  • J. Sączewski

  - Scientific Reports - Rok 2022

  Low-molecular synthetic fluorophores are convenient tools in bioimaging applications. Several derivatives of Safirinium dyes as well as their reactive N-hydroxysuccinimide (NHS) esters bearing diverse substituents were synthesized and evaluated experimentally in terms of their lipophilicity by means of reverse-phase and immobilized artificial membrane high-performance liquid chromatography. Subsequently, the selected compounds...

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