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Gdańsk University of Technology

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Publications from the year 2019

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  • Analytical procedures for short chain chlorinated paraffins determination - How to make them greener?
    • Kaja Kalinowska
    • Paweł Lenartowicz
    • Jacek Namieśnik
    • Mariusz Marć
    2019 Full text SCIENCE OF THE TOTAL ENVIRONMENT

    The aim of the following paper was to gather current scientific information about the analytical protocols dedicated to measuring the content level of short-chain chlorinated paraffins (SCCPs) in various types of environmental samples. Moreover, the data about the basic validation parameters of applied procedures for SCCPs determination are listed. The main issue which is highlighted in the paper is the possibility of the application of green analytical chemistry (GAC) principals in the SCCPs measuring process to reduce the environmental impact of the applied methodology. Analytical methods dedicated to SCCPs determination contain a significant number of steps and require advanced analytical equipment during the quantitative and qualitative analysis. In addition, there is a substantial issue associated with the reliability of the obtained results, especially in the case of the quantification of individual SCCPs in the studied samples. Due to this fact, the paper attempts to discuss the various stages of the analytical procedure, in which appropriate changes in the formula or equipment solutions might be introduced to ensure a better quality of the analytical results, as well as to meet the requirements of the philosophy of green analytical chemistry. The most important case which concerns this subject is finding an optimal consensus between the economic and logistic aspects and the quality and “greenness” of the analytical procedure employed in SCCPs determination process.

  • Anisotropic mechanical behavior and auxeticity of penta-graphene: Molecular statics/molecular dynamics studies
    • Szymon Winczewski
    • Jarosław Rybicki
    2019 Full text CARBON

    We investigate the mechanical properties of penta-graphene (PG), a recently proposed two-dimensional carbon allotrope using atomistic simulation techniques combined with the empirical description of interatomic interactions. We report on the dependence of its three in-plane mechanical moduli (i.e. Young's modulus, Poisson's ratio and shear modulus) on the deformation direction, strain and temperature. We show that PG displays a strongly manifested mechanical anisotropy, being characterized by Poisson's ratio and the shear modulus which both depend strongly on the deformation direction. By analyzing bond energies we study the influence of different carbon-carbon bonds on the mechanical response of PG and based on that we explain the origins of the observed anisotropy. We show that it is mostly a consequence of the characteristics of the sp3 -hybridizied bonds, which form the diamond-like tetrahedral blocks. We investigate the auxeticity of PG in detail and show that it displays complete auxetic behavior, having negative Poisson's ratio for all the deformation directions. We show that the auxeticity of PG is similar to that of defective graphene containing 5-8-5 double vacancies, as it also originates from the so-called de-wrinkling mechanism. We study the influence of temperature and show that it only slightly affects the mechanical moduli of PG.

  • Antecedents to Achieve Kanban Optimum Benefits in Software Companies
    • Muhammad Ahmad
    • Anna Rohunen
    • Päivi Raulamo-jurvanen
    2019

    In 2004, Kanban successfully entered into the Agile and Lean realm. Since then software companies have been increasingly using it in software development teams. The goal of this study is to perform an empirical investigation on antecedents considered as important for achieving optimum benefits of Kanban use and to discuss the practical implications of the findings. We conducted an online survey with software professionals from the Lean Software Development LinkedIn community to investigate the importance of antecedents of using Kanban for achieving optimum benefits. Our study reveals that subjective norm, organizational support, ease of use, Kanban use experience and training are the antecedents for achieving expected benefits of Kanban. The potential benefits of Kanban use can only be realized when the key antecedents are not only identified, but also infused across an organization. When managing the transition to or using Kanban, practitioners need to adapt their strategies on the extent of various antecedents, a few identified in this study.

  • Anthra[1,2-d][1,2,3]triazine-4,7,12(3H)-triones as a New Class of Antistaphylococcal Agents: Synthesis and Biological Evaluation
    • Viktor Zvarych
    • Maryna Stasevych
    • Volodymyr Novikov
    • Eduard Rusanov
    • Mykhailo Vovk
    • Piotr Szweda
    • Katarzyna Grecka
    • Slawomir Milewski
    2019 Full text MOLECULES

    The development and spread of resistance of human pathogenic bacteria to the action of commonly used antibacterial drugs is one of the key problems in modern medicine. One of the especially dangerous and easily developing antibiotic resistant bacterial species is Staphylococcus aureus. Anthra[1,2-d][1,2,3]triazine-4,7,12(3H)-triones 22–38 have been developed as novel effective antistaphylococcal agents. These compounds have been obtained by sequential conversion of 1-amino-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid (1) and 1-amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid (2) into the corresponding amides 5–21, followed by subsequent endo-cyclization under the influence of sodium nitrite in acetic acid. Evaluation of the antimicrobial activity of the synthesized compounds against selected species of Gram-positive and Gram-negative bacteria as well as pathogenic yeasts of the Candida genus has been carried out by the serial dilution method. It has been established that anthra[1,2-d][1,2,3]triazine-4,7,12(3H)-triones exhibit selective antibacterial activity against Gram-positive bacteria. Eight, six and seven, out of seventeen compounds tested, effectively inhibited the growth of S. aureus ATCC 25923, S. aureus ATCC 29213 and S. epidermidis ATCC12228, respectively, at a concentration equal to 1 µg/mL or lower. The high antistaphylococcal potential of the most active compounds has been also confirmed against clinical isolates of S. aureus, including the MRSA strains. However, bacteria of the Staphylococcus genus have demonstrated apparent resistance to the novel compounds when grown as a biofilm. None of the four selected compounds 3234 and 36 at a concentration of 64 µg/mL (128 or 256 × MIC—against planktonic cells) has caused any decrease in the metabolic activity of the staphylococcal cells forming the biofilm. The kinetic time–kill assay revealed some important differences in the activity of these substances. Compound 33 is bacteriostatic, while other demonstrate bactericidal activity.

  • Antibacterial Activity and Cytocompatibility of Bone Cement Enriched with Antibiotic, Nanosilver, and Nanocopper for Bone Regeneration
    • Marcin Wekwejt
    • Anna Michno
    • Karolina Truchan
    • Anna Pałubicka
    • Beata Świeczko-Żurek
    • Anna Maria Osyczka
    • Andrzej Zieliński
    2019 Full text Nanomaterials

    Bacterial infections due to bone replacement surgeries require modifications of bone cement with antibacterial components. This study aimed to investigate whether the incorporation of gentamicin or nanometals into bone cement may reduce and to what extent bacterial growth without the loss of overall cytocompatibility and adverse effects in vitro. The bone cement Cemex was used as the base material, modified either with gentamicin sulfate or nanometals: Silver or copper. The inhibition of bacterial adhesion and growth was examined against five different bacterial strains along with integrity of erythrocytes, viability of blood platelets, and dental pulp stem cells. Bone cement modified with nanoAg or nanoCu revealed greater bactericidal effects and prevented the biofilm formation better compared to antibiotic-loaded bone cement. The cement containing nanoAg displayed good cytocompatibility without noticeable hemolysis of erythrocytes or blood platelet disfunction and good viability of dental pulp stem cells (DPSC). On the contrary, the nanoCu cement enhanced hemolysis of erythrocytes, reduced the platelets aggregation, and decreased DPSC viability. Based on these studies, we suggest the modification of bone cement with nanoAg may be a good strategy to provide improved implant fixative for bone regeneration purposes.

  • Antibiotic-Based Conjugates Containing Antimicrobial HLopt2 Peptide: Design, Synthesis, Antimicrobial and Cytotoxic Activities
    • Natalia Ptaszyńska
    • Katarzyna Gucwa
    • Katarzyna Olkiewicz
    • Anna Łȩgowska
    • Joanna Okońska
    • Jarosław Ruczyński
    • Agata Gitlin-Domagalska
    • Dawid Dȩbowski
    • Sławomir Milewski
    • Krzysztof Rolka
    2019 ACS Chemical Biology

    Recent studies have shown that modified human lactoferrin 20−31 fragment, named HLopt2, possesses antibacterial and antifungal activity. Thus, we decided to synthesize and evaluate the biological activity of a series of conjugates based on this peptide and one of the antimicrobials with proven antibacterial (ciprofloxacin, CIP, and levofloxacin, LVX) or antifungal (fluconazole, FLC) activity. The drugs were covalently connected to the peptide via amide, methylenecarbonyl moieties, or a disulfide bridge. The antibacterial and antifungal activities were evaluated under Clinical and Laboratory Standard Institute (CLSI) recommended conditions or in a low-salt brain−heart infusion diluted medium (BHI1/100). Results showed that conjugation of the peptide with the drug increased its antimicrobial activity up to 4-fold. Under CLSI-recommended conditions, all the compounds revealed rather low efficiency. Among conjugates, the highest antibacterial activity was recorded for the CIP-Cys-S-S-HLopt2-NH2 (III). In BHI1/100, which had lower differentiating properties, all of the conjugates revealed low MIC and MMC (minimum inhibitory and microbicidal concentrations) values. The disulfide bridge used as a linker in the most active conjugate (III) upon incubation with S. aureus cells is reduced, releasing constituent peptide and CIP-Cys. In addition, we showed that its fluorescently labeled analogue and constituent peptide are able to be internalized into both C. albicans and S. aureus cells. Moreover, the invaluable advantage of the presented conjugates was their low toxicity to mammalian cells and very low hemolytic activity. The current research can form a solid basis for further in vivo studies and drug development.

  • Anticancer and antimicrobial properties of novel η6-p-cymene ruthenium(ii) complexes containing a N,S-type ligand, their structural and theoretical characterization
    • Ewelina Namiecińska
    • Beata Sadowska
    • Marzena Więckowska-Szakiel
    • Anna Dołęga
    • Beata Pasternak
    • Magdalena Grazul
    • Elzbieta Budzisz
    2019 Full text RSC Advances

    Ruthenium(II) complexes are lately of great scientific interest due to their chemotherapeutic potential asanticancer and antimicrobial agents. Here we present the synthesis of new pyrazole carbothioamidederivatives and their four arene–ruthenium complexes. The title compounds were characterized with theapplication of IR, NMR, mass spectrometry, elemental analysis and X-ray diffraction. Additionally, for newcomplexes DFT calculations were done. Their antimicrobial activity (MIC, MBC/MFC) was examinedinvitroagainstStaphylococcus aureus,Staphylococcus epidermidis,Enterococcus faecalis,Pseudomonasaeruginosa,Proteus vulgarisandCandida albicans. Their cytotoxic effects, using the MTT assay, againstthree cancer cell lines: HL-60, NALM-6, WM-115 and normal human foreskinfibroblasts (HFF-1) werealso investigated. The influence of the new arene–ruthenium(II) complexes on the DNA structure wasalso tested. From our results, compound2dshowed higher cytotoxicity against melanoma cell line WM-115 than cisplatin. Strong biostatic and biocidal activity of the tested complexes against Gram-positivebacteria, includingS. aureus,S. epidermidisandE. faecaliswas demonstrated. The new arene–ruthenium(II) compounds could not only inhibit proliferation of cancer cells, but also protect patientsagainst malignant wound infections.

  • ANTIOXIDANT POWER SERIES (APS) AS A TOOL FOR RATIONAL DESIGN AND ASSESSMENT OF HEALTH PROMOTING PROPERTIES OF FUNCTONAL FOODS BASED ON ANTIOXIDANT PHYTOCHEMICALS
    • Agnieszka Bartoszek-Pączkowska
    • Monika Baranowska
    • Klaudia Suliborska
    • Wojciech Chrzanowski
    • Barbara Kusznierewicz
    • Agata Kot-Wasik
    2019

    Over past decades, plantborne antioxidants dominated so called "translational research" in the area of food, nutrition, and disease prevention. Among consumers and producers, such phytochemicals are synonyms of nutriceuticals. Popularity and commercial success of antioxidants stems from mechanistic studies suggesting the involvement of reactive oxygen species in etiology of chronic diseases. However, epidemiology failed to provide unequivocal confirmation of protective role of plantborne antioxidants in people exposed to oxidative stress. This ambiguity results from still insufficient understanding of relationships between chemical nature, redox potential in particular, and biological or physiological activity of antioxidants in the reducing environment of respectively cell or whole organism. To fill in this gap, we elaborate Antioxidant Power Series (APS) for antioxidants produced endogenously and found in edible or medicinal plants. APS is supposed to resemble the electrochemical series, which enables chemists to predict behavior of redox pairs in different systems. Similarly as hydrogen constitutes the point "zero" in electrochemical series, in the case of APS as such a reference point glutathione (GSH), the main physiological antioxidant, is proposed. The current version of APS for over 30 antioxidants and its relation to biological activities associated with redox homeostasis exhibited by these compounds will be presented and predictive value discussed.

  • Anti-plane surface waves in media with surface structure: Discrete vs. continuum model
    • Victor Eremeev
    • Basant Lal Sharma
    2019 Full text INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE

    We present a comparison of the dispersion relations derived for anti-plane surface waves using the two distinct approaches of the surface elasticity vis-a-vis the lattice dynamics. We consider an elastic half-space with surface stresses described within the Gurtin–Murdoch model, and present a formulation of its discrete counterpart that is a square lattice half-plane with surface row of particles having mass and elastic bonds different from the ones in the bulk. As both models possess anti-plane surface waves we discuss similarities between the continuum and discrete viewpoint. In particular, in the context of the behaviour of phase velocity, we discuss the possible characterization of the surface shear modulus through the parameters involved in lattice formulation.

  • Antybiotyki aminoglikozydowe - problemy i wyzwania współczesnej analityki
    • Marta Glinka
    • Andrzej Wasik
    2019 Analityka: Nauka i Praktyka

    Zwiększające się zużycie produktów farmaceutycznych i ich przedostawanie się do środowiska naturalnego, jest jednym z istotnych problemów współczesnego świata. Legislacja dotycząca zawartości antybiotyków w środowisku naturalnym, żywności pochodzenia zwierzęcego, jak również w przypadku kontroli składu produktów farmaceutycznych ulega ciągłym zaostrzeniom. Stawia to przed analitykami coraz to nowe wyzwania polegające na opracowaniu możliwie czułych oraz selektywnych metod ich oznaczania. Jednak czy w każdym przypadku jest to możliwe i łatwe do osiągnięcia? Z punktu widzenia analityka, szczególnie trudne do oznaczenia są farmaceutyki charakteryzujące się wysoką polarnością oraz zdolnością do tworzenia kompleksów ze składnikami matrycy. Doskonałym przykładem tego typu substancji są antybiotyki aminoglikozydowe.

  • ANTYGENY REKOMBINANTOWE W DIAGNOSTYCE SEROLOGICZNEJ BORELIOZY
    • Weronika Grąźlewska
    • Lucyna Holec-Gąsior
    2019 Full text Postępy Mikrobiologii

    Borelioza jest najczęstszą chorobą odkleszczową dotykającą mieszkańców półkuli północnej. Chorobę tę wywołują bakterie zakwalifikowane do grupy Borrelia burgdorferi sensu lato. Współcześnie podstawą diagnostyki laboratoryjnej boreliozy jest dwustopniowe badanie serologiczne. Pierwszym etapem jest test immunoenzymatyczny (ELISA), jeżeli wynik badania jest dodatni lub wątpliwy jako test potwierdzający stosuje się technikę Western blot. W obu metodach jako główne źródło antygenów wykorzystuje się całkowite lizaty komórkowe B. burgdorferi s.l. Jednak ogromna różnorodność gatunków w obrębie B. burgdorferi s.l. oraz niski stopień zakonserwowania sekwencji ich białek sprawia, że wykorzystanie lizatów komórkowych jednego z genogatunków nie jest wystarczające do prawidłowego rozpoznania boreliozy. Liczne doniesienia literaturowe wykazują, że wykorzystanie antygenów rekombinantowych lub chimerycznych B. burgdorferi s.l. może być potencjalnym rozwiązaniem problemów występujących w immunodiagnostyce boreliozy. Jednak, aby testy diagnostyczne oparte na białkach rekombinantowych miały jak największą skuteczność należy wykorzystać w nich starannie wyselekcjonowane antygeny lub ich fragmenty. Dzięki takiemu podejściu można opracować test, którego czułość pozostanie niezależna od genogatunku B. burgdorferi s.l., który wywołał chorobę. Dodatkowo wykorzystanie jedynie fragmentów białek może zdecydowanie ograniczyć częstość występowania reakcji krzyżowych.

  • Aplikacja na system operacyjny Android sterująca kontrolerem sieci SDN
    • Radosław Gackowski
    • Sylwester Kaczmarek
    • Jacek Andrzej Litka
    2019 Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

    W artykule omówiono koncepcję, realizację i testy przeprowadzone przy tworzeniu aplikacji na system Android przeznaczonej do sterowania kontrolerem sieci SDN. Przedstawione zostały schemat blokowy, sieć działań aplikacji oraz struktura sieci wykorzystanej do testów aplikacji. Przeprowadzone testy zakończyły się sukcesem i aplikacja spełnia wszystkie założenia.

  • APPLICABILITY OF INLET AIR FOGGING TO MARINE GAS TURBINE
    • Zygfryd Domachowski
    • Marek Dzida
    2019 Full text Polish Maritime Research

    The dependency of marine gas turbine on the ambient temperature leads to a decrease of the gas turbine power output in arid areas. Very often gas turbine power output demand is high and the power margins originally designed into the driver , has been exhausted. In such circumstances the inlet air fogging is an effective compensation of gas turbine power. In this paper an analysis of inlet air fogging applicability to marine gas turbine has been conducted. Different areas of ship’s voyage have been taken into account. The use of inlet air fogging in marine gas turbine must be evaluated on the basis of turbine characteristics, climate profile of ship’s voyage, and expectations of gas turbine power augmentation. The authors expect that the considerations provide useful guidance for users of marine gas turbines to decide the feasibility of installing an inlet air fogging system.

  • Application and evaluation of M-EPDG for performance analysis of Polish typical flexible and rigid pavements
    • Dawid Ryś
    • Piotr Jaskuła
    • Mariusz Jaczewski
    • Marek Pszczoła
    2019 Full text Roads and Bridges - Drogi i Mosty

    The main goal of the paper is to implement and evaluate the M-EPDG and the software AASHTOware to analyse the performance of new flexible and rigid pavements designed according to the Polish catalogues, which are comparable with analogous catalogues used in other European countries. For this purpose the site-specific inputs for Poland were determined and described in the paper as well as compared to the default input data used in the USA. Performance parameters delivered from M-EPDG were compared to limits of pavement distresses given in the Polish Pavement Condition Diagnostics system and confirmed good or acceptable level of distresses at the end of design period. Analysis indicated that several climatic zones for Poland should be considered for performance analysis both of flexible and rigid structures. The presented analysis can be the first stage on the way towards calibration of the M-EPDG models for Polish conditions and their adjustment to planning of maintenance treatments.

  • Application of autoencoder to traffic noise analysis
    • Andrzej Czyżewski
    • Adam Kurowski
    • Szymon Zaporowski
    2019 Full text Journal of the Acoustical Society of America

    The aim of an autoencoder neural network is to transform the input data into a lower-dimensional code and then to reconstruct the output from this code representation. Applications of autoencoders to classifying sound events in the road traffic have not been found in the literature. The presented research aims to determine whether such an unsupervised learning method may be used for deploying classification algorithms applied to the automatic annotation of road traffic-related events based on noise analysis. Two-dimensional representation of traffic sounds based on Mel Frequency Cepstral Coefficients (MFCC) was fed the autoencoder neural network, and after that classified with k-nearest neighbors algorithm, Support Vector Machines, and random forests. Obtained results show that sound recordings can help determine the number of vehicles passing on the road. However, instead of being treated as independent, this method output should be combined with another source of data, e.g., video processing results or microwave radar data readings. Comparative results of vehicle counting obtained with the use of autoencoder and different classifiers are shown in the paper. [The Polish National Centre finances the project for Research and Development (NCBR) from the European Regional Development Fund No. POIR.04.01.04-00-0089/16 entitled: "INZNAK: Intelligent Road Signs with V2X Interface for Adaptive Traffic Controlling."]

  • Application of Barycentric Coordinates in Space Vector PWM Computations
    • Paweł Szczepankowski
    • Janusz Nieznański
    2019 Full text IEEE Access

    This paper proposes the use of barycentric coordinates in the development and implementationof space-vector pulse-width modulation (SVPWM) methods, especially for inverters with deformed space-vector diagrams. The proposed approach is capable of explicit calculation of vector duty cycles, independentof whether they assume ideal positions or are displaced due to the DC-link voltage imbalance. The use ofbarycentric coordinates also permits a well-defined and universal approach to the problem of identifyingthe region in which the reference vector is located. It completely avoids the use of angles, trigonometricfunctions, and inverse trigonometric functions and is chiefly based on matrix operations which are well suitedfor digital signal processor implementation. The proposed approach is exposed and validated for the specialcase of three-level neutral-point clamped (NPC) inverter controlled by a discontinuous space-vector PWM.

  • Application of cyanated asphaltenes in gas-phase adsorption processes for removal of volatile organic compounds
    • Maksymilian Plata-Gryl
    • Malwina Momotko
    • Sławomir Makowiec
    • Grzegorz Boczkaj
    2019 Full text CHEMICAL PAPERS

    The paper presents an innovative, chemically modified (methylcyanated) asphaltene-based adsorbent that can be an inter-esting low-cost alternative for traditional adsorbents. Adsorption properties of adsorbents were examined by inverse gas chromatography technique, adsorption isotherms, and breakthrough curves. A significant increase in retention volume for pyridine, 2-pentanone, nitropropane, toluene, and 1-butanol was observed. Rohrschneider–McReynolds constants revealed an increase in strength of interactions as a result of the modification, especially in strong proton–acceptor interaction (by a factor of 4.6). The surface-free energy of asphaltene adsorbents increased from 136.71 to 169.95 mJ m−2 after modifica-tion. It is similar to the surface-free energy of silica or alumina. Moreover, modified adsorbent shows very high adsorption potential for pyridine. Adsorption isotherms revealed that monolayer adsorption capacity for pyridine increased 1.5 times after modification. Breakthrough curves of pyridine indicate that chemical modification increased the adsorption capacity, removal efficiency, and throughput. Scale-up calculations revealed that adsorption column packed with modified asphaltene adsorbent would be almost two times smaller compared to a column packed with unmodified one.

  • Application of Game Theory to Conflict Management in a Construction Contract
    • Beata Grzyl
    • Magdalena Apollo
    • Adam Kristowski
    2019 Full text Sustainability

    Interest has recently grown in the application of game theory (GT) to solve a number of diverse problems in the field of construction. The use of GT by a general contractor (GC) of construction works to indicate the best strategy leading to winning court proceedings in a situation of conflict with investor (IN), has not been investigated until now. Thus the aim of this paper is to indicate the optimal strategy from the GC viewpoint in a conflict situation with the IN. The article presents a list of the most common causes of conflict between parties of a construction work contract, defines the background of the problem and the cause of the dispute, and subsequently the authors generate a theoretical model of the game. Based on the analyzed game model, the expected payoffs for players were calculated and the probability boundary value determined in making the GC apply the indicated strategy. The study results show that while the probability of issuing a judgment favorable for the GC is at least equal to 0.69 it is justified to use an aggressive strategy. The analysis also confirms that from the financial perspective, litigation in most cases of conflicts in the area of construction should be the ultimate choice.

  • Application of GC-MS/MS technique for the determination of benzodiazepines in blood samples
    • Laura Banaszkiewicz
    • Mateusz Woźniak
    • Agata Kot-Wasik
    2019 Full text

    Abstract Benzodiazepines (BZD) are widely used as pharmaceuticals in medicine. However, due to psychostimulatory effect of BZD, in the last decade, they are more and more often used as drugs of abuse. These compounds produce similar effects to classical illicit drugs and are sold as “legal” alternatives to them as new psychoactive substances (NPS). Currently new BZD, named designer benzodiazepines (DBZD), are synthesized each year by a simple modification of registered drug structure or their metabolites. The misuse and abuse of benzodiazepines has become an increasing problem in many countries. Due to this phenomenon there is a strong need to develop new analytical methods for the determination of a whole range of substances in biological specimens for forensic toxicology. A rapid, sensitive and robust GC-MS/MS-based method with a simple liquid-liquid extraction for the determination of 10 benzodiazepines in whole blood samples was developed. The assay achieved satisfactory validation parameters, such as: inter-day accuracy (91.8–118.6 %), and precision (2.8–14.9%). The limit of detection (LOD) and limit of quantification (LOQ) were in the range of 0.02-0.53ng/mL and 1-2 ng/mL, respectively. The developed procedure can be widely applicable for rapid screening of new drugs of abuse in forensic or clinical cases.

  • Application of Intuitionistic Fuzzy Sets to the assessment of technical university students
    • Tacjana Niksa-Rynkiewicz
    2019 Full text Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej

    The article proposes application of artificial intelligence methods to assess students of technical universities. The level of achieved educational goals can be assessed using measurements based on the idea of Fuzzy Intuitionistic Sets (IFS). A classification algorithm was developed and an exemplary distribution of the criteria values using IFS was presented. The application of the proposed approach in online education can enrich the student evaluation process with additional information related to the uncertainty or lack of data.