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Search results for: ANTIBIOTIC RESISTANCE GENES, ANTIBIOTIC RESISTANT BACTERIA, URBAN RESISTOME, WASTEWATER TREATMENT PLANTS
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Seasonal contributions of nutrients from small urban and agricultural watersheds in northern Poland
PublicationDiffuse sources of pollution like agricultural or urban runoff are important factors in determining the quality of surface waters, although they are more difficult to monitor thanpointsources.Theobjectiveofourstudywastoverifyassumptionsthattheinflow from agricultural nutrient sources is higher than from urbanized ones. It has been done by comparing the nutrients and organic matter concentrations and loads for three small streams...
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Pathways of Nitrogen Removal in Hybrid Treatment Wetlands
PublicationHybrid Treatment Wetlands (HTWs) are composed of two or more filters with different modes of flow, allowing the benefits of both types of bed to be combined, resulting in better effluent quality (nitrogen and organic compounds removal). Such a heterogeneous environment creates possibilities for different mechanisms of nitrogen removal. The objective of the present study was to investigate the removal of nitrogen versus a range...
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The antimicrobial resistance of the Enterobacteriaceae family bacteria isolated from harbour water sediments in the Northern Poland = Lekooporność bakterii z rodziny Enterobacteriaceae wyizolowanych z portowych osadów dennych w Polsce Północnej
PublicationPraca dotyczy oceny lekooporności bakterii z rodziny Enterobacteriaceae wyizolowanych z dennych osadów portowych pobranych w dwóch polskich morskich portach w Gdańsku i w Gdyni.
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Manufacturing of resistant joints by rolling for light tubular structures
PublicationKoncepcja łączenia aluminiowych elementów rurowych z zastosowaniem nagniatania plastycznego jest alternatywą do istniejących metod łączenia przez spawanie i skręcanie. W artykule prezentowane są oryginalne wyniki badań wpływu parametrów nagniatania wewnętrznego i zewnętrznego oraz różnych postaci powierzchni łączonych na wytrzymałość złącza (aluminium-aluminium) pod wpływem rozciągających sił osiowych.Badania przeprowadzono na...
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Renal Denervation in Resistant Hypertension and Obstructive Sleep Apnea
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Investigations of welded joints of dissimilar heat resistant steels.
PublicationPrzeprowadzono badania metalograficzne połączeń spawanych różnorodnych stali żarowytrzymałych rur o przekroju 31,8x7,1 mm ze stali 10H2M z blachą ze stali 20H23N18. Badania makro- i mikrostruktury złączy spawanych wykazały, że istotnym czynnikiem wpływającym na właściwości mechaniczne złącza jest obecność wad takich jak pory lub wtrącenia żużla. Te nieciągłości w materiale powodują koncentrację naprężeń i powstawanie mikropęknięć.
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Determination of Heavy Metals Concentration in Water and Soil at Various Locations in Lahore and their Harmful Impacts on Human and Plants life
PublicationHeavy metals poisoning of soil and water has resulted from industrial expansion in Lahore, Pakistan, creating a significant environmental hazard. As a result, monitoring the contamination of soil and water around industrial sites is critical. The fact that higher concentrations of heavy metals have a negative influence on both plants and human life and this cannot be ignored. Higher heavy metal concentrations have a direct impact...
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Urban-rural Partnership
PublicationOmówiono koncepcję partnerstwa ''miasto-wieś'', opartą na idei zrównoważonego rozwoju regionalnego i policentrycznego modelu systemu miejskiego. Koncepcja ta, realizowana w krajach Unii Europejskiej, tworzy mechanizm redystrybucji zysków i korzyści uzyskiwanych w strefach dynamicznego rozwoju ośrodków miejskich na ich zaplecze wiejskie, ograniczania ujemnych skutków tej polaryzacji rozwoju i wzmacniania inicjatyw lokalnych na obszarach...
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Exploring the Institutional and Bottom-Up Actions for Urban Air Quality Improvement: Case Studies in Antwerp and Gdańsk
PublicationThe article presents the results of qualitative studies concerning the presence of air quality management in the process of urban planning and in the public discourse in Antwerp, Belgium, and Gdańsk, Poland. We focused on the way urban planners, environmental experts, and stakeholders perceive the problem of air pollution, especially with respect to urban development policy, and whether they consider it one of the major factors...
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Influence of the particle size of carbonate-siliceous rock on the efficiency of phosphorous removal from domestic wastewater
PublicationtThe aim of the study was to determine the influence of the particle size of carbonate–silica rock (opoka)used in rock filters on the efficiency of phosphorus removal from domestic wastewater. The investigationswere carried out in a laboratory using a model consisting of three vertical flow filters with carbonate–silicarock of different particle sizes (G1= 1–2 mm; G2= 2–5 mm; G3= 5–10 mm). The tested rock was subjectedto decarbonising...
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Student competitions as a socio-spatial tool for planning urban structures
PublicationThe aim of the article is to show the interdependencies between theory and practice based on the example of the student competitions at the Faculty of Architecture at the Gdańsk University of Technology. These competitions, on the one hand, broaden the spectrum of issues related to design and, on the other hand, contribute to the better recognition of problems related to tasks to be solved. Both the teaching and applicational aspects...
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FACES OF MODERNISM - URBAN PLANNING OF SOCIAL HOUSING ESTATES IN GDANSK AND HAMBURG-ALTONA
PublicationThe paper aims to compare the modernistic social housing estates built during the interwar period in the Free City of Gdansk and in Altona, the small neighbour of Hamburg. The comparison is based on the analysis of the factors, which significantly affected the decisions regarding spatial transformations and the development of both cities in that time. These factors include primarily: poor living conditions, resulting from the explosive...
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Simultaneous opto-electrochemical monitoring of carbamazepine and its electro-oxidation by-products in wastewater
PublicationThe growing human impact on aquatic environments, due to the extensive use of pharmaceuticals and the release of persistent pollutants, makes it necessary to implement new widespread methods for the characterisation and quantification of such contaminants and relative degradation products. Carbamazepine, 5H-dibenzo[b,f]azepine-5-carboxamide, (CBZ) is a widely used anti-epileptic drug, characterised by its limited removal by conventional...
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Biological and mechanical properties of bone cement with nanoarticles - in vitro and in vivo research
PublicationDespite antibiotic preventive treatment both before and after implant implementation, the risks of infection are real. These infections develop at the implant surface a few months after inserting them into the body. To prevent the development of bacteria and reduce the risk of infection, implants coated with nanoparticles are used. The Mechanical Department of the Technical University of Gdansk carries out research into using bone...
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Effect of psoriasis activity and topical treatment on serum lipocalin-2 levels
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Serum adiponectin and leptin levels in psoriatic patients according to topical treatment
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Thermodynamic Cycle Concepts for High-Efficiency Power Plants. Part B: Prosumer and Distributed Power Industry
PublicationAn analysis was carried out for different thermodynamic cycles of power plants with air turbines. A new modification of a gas turbine cycle with the combustion chamber at the turbine outlet has been described in the paper. A special air by-pass system of the combustor was applied, and in this way, the efficiency of the turbine cycle was increased by a few points. The proposed cycle equipped with an effective heat exchanger could...
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FLOOD MANAGEMENT IN URBAN BASINS OF THE CITY OF GDAŃSK
PublicationOver the last years, the City of Gdańsk suffers twice from flash floods. Both events were caused by intense storms which produced significant surface runoff and caused inundation private and cities properties. The first case of July 2001 flood [3], [9] was the turning point for the city authorities, who decide to look close on the flood management in small urban catchments. The aim of research projects was to establish technical...
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The Impact of Weather on Traffic Speed in Urban Area
PublicationThe issue of the impact of weather conditions on trip speed of vehicles has been studied for a long time and it is still the subject of many scientific researches. The impact of atmospheric conditions on the speed with which drivers drive their vehicles seems to be obvious. Good weather conditions, sunny weather with good visibility surely provokes higher speed while rainfall, wind...
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Influence of bitumen type on cracking resistance of asphalt mixtures used in pavement overlays
PublicationCracking is one of the predominant distresses occurring in flexible pavements, especially in old pavements that were rehabilitated with an asphalt overlay. In such cases asphalt mixtures should be designed to ensure high resistance to reflective cracking because new asphalt layers are exposed to existing cracks of the old pavement. The nature of these cracks can be various (transverse, longitudinal as well as crazy cracking). One...
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Psychological and physical components in forming preferences on urban greenery management – The case of trees
PublicationPublic opinion is increasingly important in managing urban greenery. In this regard, this study demonstrates the importance of sociological (environmental worldviews), psychological (place attachment, perceived benefits of trees), and physical factors (type of building people live in, and urban greenery) in forming residents’ opinions on whether the municipality or landowners should decide about tree removal on private land. Logistic...
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Transmission Losses Spatial Analysis of the Supply System of Electrified Urban Transport Network
PublicationThe paper presents mathematical model TOPSIS which was applied for MCDA benchmark of trolleybus supply system. Moreover, paper presents the novel method of transmission losses analysis in electrified urban transport system. Research work was based on measurements realized in Gdynia trolleybus network.
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Optimal conditions of naphthoquinones separation from carnivorous plants extracts using thin-layer chromatography and high performance liquid chromatography
PublicationDroseraceae plants are owned by the family of carnivorous plants, which in an unusual way adapt to environments poor in nutrients. Droseraceae obtain essential nutrients catching insects and other small invertebrantes. Plumbagin, chloroplumbagin, ramentaceon and droseron are naphthoquinones, which could be found in leaves and shoots of plants from Droseraceae family. In the literature there are a lot of information about the pharmacological...
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Cancer Research and Treatment
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CANCER TREATMENT REVIEWS
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Education & Treatment of Children
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Alcoholism Treatment Quarterly
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AIDS Research and Treatment
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Addictive Disorders & Their Treatment
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HEAT TREATMENT OF METALS
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Oncology Research and Treatment
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Neuropsychiatric Disease and Treatment
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Depression Research and Treatment
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Epilepsy Research and Treatment
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Hepatitis Research and Treatment
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Stroke Research and Treatment
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Virology: Research and Treatment
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Influenza Research and Treatment
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Malaria Research and Treatment
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Advances in Psychiatric Treatment
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Pain Research and Treatment
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Cancer Treatment and Research
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Virus Adaptation and Treatment
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Schizophrenia Research and Treatment
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Multi-objective weather routing of sailboats considering wave resistance
PublicationThe article presents a method to determine the route of a sailing vessel with the aid of deterministic algorithms. The method assumes that the area in which the route is to be determined is limited and the basic input data comprise the wind vector and the speed characteristic of the vessel. Compared to previous works of the authors, the present article additionally takes into account the effect of sea waves with the resultant resistance...
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The influence of inflation pressure and ambient temperature on the value of the truck tires rolling resistance
PublicationThe articlediscusses the effect of inflation pressure and the ambient temperature on the value of the rolling resistance of truck tires which directly translates into fuel consumption. For this purpose, a series of measurements was made at two ambient temperatures (at 25°C and -15°C), using different pumping pressures.
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MXene-based materials for removal of antibiotics and heavy metals from wastewater– a review
PublicationAs a novel family of 2D materials, MXenes provide an extensive variety of applications in water and effluent treatment due to their distinctive properties and attractive applicability, including superior electrical conductivity, higher thermal stability, hydrophilicity, and high sorption-reduction capacity. Their excellent sorption selectivity makes them perfect for removing hazardous contaminants. Currently, MXene-based materials...
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Heavy Metals in a High Arctic Fiord and Their Introduction with the Wastewater: A Case Study of Adventfjorden-Longyearbyen System, Svalbard
PublicationLongyearbyen is the largest settlement on Svalbard archipelago, with 2400 permanent residents and approximately 150,000 tourists visiting every year. The city annually releases approximately 285,000 m3 of untreated wastewater to the nearby Adventfjorden. To date, the environmental impact of this continuous input has been studied mainly regarding the sediments and benthic fauna in the fiord. Here, we present results from a study...
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An Influence of Factors of Flow Condition, Particle and Material Properties on Slurry Erosion Resistance
PublicationThe degradation of materials due to slurry erosion is the serious problem which occurs in the power industries. The paper presents actual knowledge about an influence of individual factors connected with flow conditions, particles and material properties on the slurry erosion resistance. Among the factors connected with operating conditions, an influence of impact angle, and velocity of impact, particle concertation and liquid...
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A new method of fault loop resistance measurement in low voltage systems with residual current devices
PublicationThis paper presents a new method of fault loop resistance measurement in low voltage systems with residual current devices. The method enables measuring fault loop resistance without nuisance tripping of residual current devices, by application an unconventional waveform of measurement current. It is important for proper verification of the effectiveness of protection against electric shock.