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Typing of Candida isolates from patients with invasive infection and concomitant colonization
PublicationWe investigated the relationship between colonizing and invasive isolates from patients with candidaemia. Molecular typing was performed using random amplification of polymorphic DNA (RAPD) and multilocus sequence typing (MLST). We found MLST to be sufficient for typing Candida isolates, and that surveillance cultures are helpful in predicting concomitant invasive isolates, but not necessarily the pathogen involved in subsequent...
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Mechanisms of azole resistance among clinical isolates of Candida glabrata in Poland
PublicationCandida glabrata is currently ranked as the second most frequently isolated aetiological agent of human fungal infections, next only to Candida albicans. In comparison with C. albicans, C. glabrata shows lower susceptibility to azoles, the most common agents used in treatment of fungal infections. Interestingly, the mechanisms of resistance to azole agents in C. albicans have been much better investigated than those in C. glabrata....
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Krzysztof Wilde prof. dr hab. inż.
PeopleKrzysztof Wilde (born January 11th, 1966 in Gdańsk) – expert in bridge structures, structural mechanics and diagnostics of civil structures. He conducted research on vibration reduction systems for bridges exposed to dynamic loads from winds and earthquakes. At present he is interested in the field of nondestructive testing of materials and structural health monitoring systems. Hi is author or coauthor of over 200 publications...
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Characteristics of selected Anabaena isolates from CCNP Collection
Open Research DataEN: This dataset includes information about Anabaena strains (cyanobacteria) deposited in the Culture Collection of Northern Poland (CCNP), at the Division of Marine Biotechnology, Institute of Oceanography, University of Gdańsk, Poland. Presented data concern Anabaena strains their (1) isolation and culture conditions, (2) taxonomic position, (3) morphology...
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Isolator using a ferrite-coupled-lines gyrator
PublicationPrzedstawiono koncepcję nowego typu gyratora wykonywanego poprzez zwarcie lub rozwarcie ferrytowych linii sprzężonych (FCL). Redukując w taki sposób macierz rozproszenia (S) sekcji FCL określono macierz S gyratora oraz procedurę jego projektowania. Poprzez odpowiednie wprowadzenie warstwy rezystywnej do układu gyratora zaprojektowano nowy układ isolatora typu FCL oraz podano metodykę jego projektowania. Koncepcje proponowanych...
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Molecular hydrogen solvated in water – A computational study
PublicationThe aqueous hydrogen molecule is studied with molecular dynamics simulations at ambient temperature and pressure conditions, using a newly developed flexible and polarizable H2 molecule model. The design and implementation of this model, compatible with an existing flexible and polarizable force field for water, is presented in detail. The structure of the hydration layer suggests that first-shell water molecules accommodate the...
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Fixed point indices of iterates of a low-dimensional diffeomorphism at a fixed point which is an isolated invariant set
PublicationLet f be an R^n-diffeomorphism, where n = 2, 3, for which {0} is an isolated invariant set. We determine all possible forms of the sequences of fixed point indices of iterates of f at 0, {ind(f n, 0)}_n, confirming in R3 the conjecture of Ruiz del Portal and Salazar (J Differ Equ 249, 989–1013, 2010).
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Antimicrobial Resistance and Virulence Characterization of Listeria monocytogenes Strains Isolated from Food and Food Processing Environments
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Genotyping and characterization of virulence factors in Escherichia coli strains isolated from patients from Polish hospital
PublicationZakażenia układu moczowego (UTIs - ang. urinary track infections) są jedną z najczęstszy infekcji, za które w 85% przypadków odpowiedzialne są bakterie Escherichia coli. Infekcje układu moczowego mogą prowadzić do groźnych powikłań m. in. odmiedniczkowego zapalenia nerek. Śmiertelność wśród tej grupy pacjentów wynosi 1-3%. Zakażenia układu moczowego występują również u ok. 7% kobiet ciężarnych. W pracy przebadano 82 szczepy E....
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The Antimicrobial Activity of Omiganan Alone and In Combination against Candida Isolated from Vulvovaginal Candidiasis and Bloodstream Infections
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A comparative pathogenicity analysis of two adenovirus strains, 1/A and 8a/E, isolated from poultry in Poland
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The effect of anatase and rutile crystallites isolated from titania P25 photocatalyst on growth of selected mould fungi
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Numerical evaluation of dynamic response of an experimentally tested base-isolated and fixed-base steel structure model
PublicationSeismic isolation is recognized as one of the most popular and effective methods of protecting structures during earthquake. The present paper is focused on the comparison be-tween the dynamic responses of buildings with fixed and isolated bases exposed to seismic exci-tations. The aim of the study is to investigate the effectiveness of a simplified base isolation numerical modelling technique using the linear springs. One-storey...
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PROCEEDINGS OF THE INSTITIUTION OF CIVIL ENGINEERS - BRIDGE ENGINEERING
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Bridge: Trends and Traditions in Translation and Interpreting Studies
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Activity of isavuconazole and other triazole derivatives against clinical isolates of Aspergillus fumigatus
PublicationAspergillus fumigatus is the most frequent pathogen of the genus Asperillus, which is highly susceptible to triazole derivatives, especially to isavuconazole and voriconazole. Many countries face a growing problem of infections due to A. fumigatus showing acquired resistance to one or several triazoles. In medical centres, monitoring the susceptibility of isolated Aspergillus spp. is recommended. The aim of this study was to collect...
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Molecular typing of clinical isolates of Escherichia coli by a new PCR MP method
PublicationTypowanie epidemiologiczne bakterii jest rutynową procedurą stosowaną w badaniach zakażeń szpitalnych i wymaga stosowania odpowiednich metod o wysokim potencjale różnicującym. Przedstawiliśmy możliwości nowej techniki PCR MP w różnicowaniu szczepów E. coli. Rezultaty zostały porównane z wynikami uzyskanymi metodą PFGE.
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Molecular typing of clinical isolates of Escherichia coli by a new PCR MP method
PublicationTypowanie epidemiologiczne bakterii jest rutynową procedurą stosowaną w badaniach zakażeń szpitalnych i wymaga stosowania odpowiednich metod o wysokim potencjale różnicującym. Przedstawiliśmy możliwości nowej techniki PCR MP w różnicowaniu szczepów E. coli. Rezultaty zostały porównane z wynikami uzyskanymi metodą PFGE.
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Low frequency of itraconazole resistance found among avian Aspergillus fumigatus isolates
PublicationAspergillus fumigatus is the most frequent etiological factor of invasive aspergillosis in human as well as animals, including birds. Aspergillosis caused by drug-resistant strains poses a significant therapeutic issue, especially if resistance pattern includes insensitivity to triazoles, i.e. drugs recommended for the primary therapy purposes. Majority of resistant isolates hold the TR34/L98H...
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Probiotic potential of Bacillus Isolates from Polish Bee Pollen and Bee Bread
PublicationThe main goal of this study was the evaluation of the probiotic potential of 10 Bacillus spp. strains isolated from 5 bee bread and 3 bee pollen samples. The antagonistic interaction with Staphylococcus aureus and Escherichia coli was a primary criterion for the preliminary selection of the isolates. Three out of ten strains—PY2.3 (isolated from pollen), BP20.15 and BB10.1 (both isolated from bee bread)—were found to be possible...
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Historical crane on the redesigned original trestle bridge as a memorial of Gdansk Shipyard
PublicationThe paper includes selected aspects of the study, whose goal is to hold the historical crane 642-24 in its current location after the modification of trestle bridge static scheme. The scope of the paper includes the assessment of current technical condition of the object, a presentation of FEM analyses, a description of the assumed load cases, results of the static calculations, checking the effort of construction elements, global...
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Displacements of Cable-Stayed Bridge Measured With The Use of Traditional And Modern Techniques
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Deltorphin analogs restricted via a urea bridge: structure and opioid activity
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Deltorphin analogs restricted via a urea bridge: structure and opioid activity
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"FEM Parametric Study on Ultimate Bearing Capacity of CFST Arch Bridge
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A concept of an application to plan the time lines of building selected bridge structures
PublicationW rozdziale został przedstawiony przykład autorskiego programu komputerowego przeznaczonego do planowania czasu pracy i kosztów w budownictwie mostowym. Zaletą programu jest możliwość przedstawienia wyników w formie graficznej w sposób deterministyczny i niedeterministyczny. Ma to ogromne znaczenie jeżeli poszukujemy optymalnych rozwiązań dotyczących zagadnień ryzyka i ekonomiki budownictwa.
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Retrofit analysis of florida beam-and-post reinforced concreta bridge barriers
PublicationTematem pracy jest analiza przebiegu kolizji drogowych w przypadku najechania rozpędzonego pojazdu na betonową barierę mostową typu "Florida beam-and-post". Przedstawiono podstawy konstruowania modelu obliczeniowego do komputerowej symulacji zderzenia przy wykorzystaniu systemu LS-Dyna. Na podstawie otrzymanych wyników sformułowano zalecenia ewentualnych modyfikacji istniejących barier w celu poprawienia ich własności.
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Theoretical analysis of the cable-stayed bridge over brda river in Bydgoszcz
PublicationThe topic of this article is the numerical analysis carried out for the cable-stayed tram (road) bridge over Brda river in Bydgoszcz. The goal of numerical studies was the verification of project assumptions and construction solutions elaborated by the autonomous team. The bridge calculations were conducted on three independent FEM models The internal forces and the elements effort under different loading schemes were examined....
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Numerical Simulation of two dimensional flow past a bridge cross section
PublicationThis work presents some numerical results concerning application of CFD in civil engineering problems. Selected theoretical aspects of fluid mechanics are elucidated. In the second part of the paper a cross section of upper footbridge of the Bella Sky Hotel in Copenhagen is analysed numerically in the field of wind action.
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Reference FEM model for SHM system of cable-stayed bridge in Rzeszów
PublicationThe paper presents the references model for structural health monitoring system (SHM) of cable-stayed bridge recently constructed in Rzeszów over Wisłok River. The SHM system is design to provide on-line information on the structure state and facilitate its maintenance procedures. The main feature of the SHM system is permanent observation of the dynamic behavior of the bridge with focus on cable vibrations. The paper discusses...
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Pylon foundation of a cable stayed bridge at the motorway ring road of Wrocław
PublicationThe largest bridge of the motorway ring road of Wroclaw is a cable stayed bridge over the Odra river near Rędzin. Due to hydrogeological conditions of the ground it was not convenient to use standard bored piles of high length. Instead shorter piles were applied with additional improvement by cement injections at the pile toes. This decision was possible by extending ground investigation program and application of numerical modeling...
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Probabilistic analysis of settlements under a pile foundation of a road bridge pylon
PublicationThe paper addresses the reliability change of a road bridge pile foundation due to the unpredictable increase of settlements in time. The analysis is based on the Rędziński Bridge in Wrocław, Poland, its design assumptions, and monitoring results. The bridge foundation rests on a multi-layered subsoil assumed random. The Finite Element model of the subgrade is generated in ZSoil® software. To simplify the probabilistic approach,...
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Influence of Actual Curing Conditions on Mechanical Properties of Concrete in Bridge Superstructures
PublicationThis article presents the research on the mechanical characteristics of concrete in the construction of three concrete bridges. A system of recording the internal temperature of concrete and automatic control of laboratory ovens was used for specimen curing. This allowed the specimens to be cured under conditions similar to those occurring in the structure. Before the construction, reference blocks were used to define similar curing...
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Pounding mitigation of a short-span cable-stayed bridge using a new hybrid passive control system
PublicationThis paper investigates the effectiveness of a new hybrid passive control system on the seismic response of an existing steel cable-stayed bridge considering the pounding effect. The proposed hybrid passive control system comprises a seismic isolator and a metallic damper. The bridge is located in a high seismic zone and has suffered several damages including the earthquake-induced pounding damage during the 1988 earthquake....
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Light pollution from illuminated bridges as a potential barrier for migrating fish–Linking measurements with a proposal for a conceptual model
PublicationIlluminated bridges have become important assets to navigable aquatic systems. However, if artificial light at night (ALAN) from illuminated bridges reaches aquatic habitats, such as rivers, it can threaten the river's natural heterogeneity and alter the behavioural responses of migratory fish. Here, via a pilot study, we quantified levels of ALAN at illuminated bridges that cross a river and, propose a conceptual model to estimate...
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Characteristics of selected Nodularia spumigena isolates from CCNP Collection
Open Research DataEN: This dataset includes information about Nodularia spumigena strains (Cyanobacteria) deposited in the Culture Collection of Northern Poland (CCNP), at the Division of Marine Biotechnology, Institute of Oceanography, University of Gdańsk, Poland. Presented data concern Nodularia spumigena strains, their (1) isolation and culture conditions, (2) taxonomic...
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Cyanido-Bridged Clusters with Remote N-Oxide Groups for Branched Multimetallic Systems
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The Antimicrobial Potential of Bacteria Isolated from Honey Samples Produced in the Apiaries Located in Pomeranian Voivodeship in Northern Poland
PublicationThe principal objective of this study was to determine whether the honeys produced in apiaries located in Pomeranian Voivodeship (Northern Poland) contain bacteria producing metabolites with growth inhibition potential against important human and animal pathogens. The pathogens included Staphylococcus aurues, Staphyloccocus epidermidis, Escherichia coli, Listeria monocytogenes, Pseudomonas aeruginosa, and Candida albicans. From...
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Processing and characterization of reinforced polyethylene composites made with lignocellulosic fibres isolated from waste plant biomass such as hemp
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Identification and characterization of tetracycline resistance in Lactococcus lactis isolated from Polish raw milk and fermented artisanal products
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Do bacteria isolated from ICU patients ‘ESKAPE’ antibiotic treatment? In vitro susceptibility of the Enterobacteriaceae family to tigecycline
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Chemical Composition and Antimicrobial Activity of Selected Essential Oils against Staphylococcus spp. Isolated from Human Semen
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Deep analysis of Loop L1 HVRs1-4 region of the hexon gene of adenovirus field strains isolated in Poland
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Molecular characterisation of fowl adenovirus type 7 isolated from poultry associated with inclusion body hepatitis in Poland
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Characterisation of adenovirus strains represented species B and E isolated from broiler chicken flocks in eastern Poland
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Occurrence of antibiotic resistance among Enterobacterales isolated from raw and ready-to-eat food – phenotypic and genotypic characteristics
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Helicobacter muridarum sp. nov., a Microaerophilic Helical Bacterium with a Novel Ultrastructure Isolated from the Intestinal Mucosa of Rodents
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Assessment of antibiotic resistance and biofilm formation of Enterococcus species isolated from different pig farm environments in Poland
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In Silico Safety Assessment of Bacillus Isolated from Polish Bee Pollen and Bee Bread as Novel Probiotic Candidates
PublicationBacillus species isolated from Polish bee pollen (BP) and bee bread (BB) were characterized for in silico probiotic and safety attributes. A probiogenomics approach was used, and in-depth genomic analysis was performed using a wide array of bioinformatics tools to investigate the presence of virulence and antibiotic resistance properties, mobile genetic elements, and secondary metabolites. Functional annotation and Carbohydrate-Active...
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Bacterial consortium an axenic cultures isolated from activated sewage sludge for biodegradation of imidazolium-based ionic liquid
PublicationExtensive research and increasing number of potential industrial applications made ionic liquids (ILs) important materials in design of new, cleaner technologies. Together with the technological applicability, the environmental fate of these chemicals is considered and significant efforts are being made in designing strategies to mitigate their potential negative impacts. Many ILs are proven to be poorly biodegradable and relatively...