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Students, graduates and lecturers at non-public universities in 1997-2011
Open Research DataAt the beginning of the 2010/2011 academic year, there were 328 private universities educating 580.1 thousand students (i.e. 31.5% of all students). Compared to the previous year, there was a slight decrease in the number of non-public universities, moreover, the number of young people studying there decreased by 8.4%.
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Effect of culinary treatment on chnages in the contents of selected nutrients and non-nutrients in curly kale (Brassica oleracea var. acephala)
PublicationKale has a great nutritive value, very high antioxidant activity and pro-healthypotential. The level of phytochemicals and related bioactive compounds arestrongly dependent on pre and postharvest stages of production chain (domestic orindustrial). The study investigated changes in the levels of vitamin C, b-carotene,total polyphenols, antioxidant activity, degradation products of glucosinolates aswell as nitrates and nitrites in...
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Paired domination subdivision and multisubdivision numbers of graphs
PublicationThe paired domination subdivision number sdpr(G) of a graph G is the minimum number of edges that must be subdivided (where an edge can be subdivided at most once) in order to increase the paired domination number of G. We prove that the decision problem of the paired domination subdivision number is NP-complete even for bipartite graphs. For this reason we define the paired domination muttisubdivision number of a nonempty graph...
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Ireneusz Kreja dr hab. inż.
PeopleGraduated from the mathematical class at the Nicolaus Copernicus High School in Gdańsk (1974). Master of Sciences in Civil Engineering after studies at Gdansk University of Technology (GUT), Poland (1974-1979). Since 1979 became an employee of the GUT. In 1989 earned a Ph.D. degree in Civil Engineering (with grade "Summa cum Laude") from the GUT. In 2008 obtained a D. Sc. (Habilitation) degree in Civil Engineering (with grade...
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Daphnia magna model in the toxicity assessment of pharmaceuticals: A review
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Urinary mercury in adults in Poland living near a chloralkali plant
PublicationW pracy przedstawiono wyniki badań prowadzonych w ramach projektu Unii Europejskiej nt European Mercury Emission from Chloralkali Informacja o zawartości rtęci w moczu została opracowana i przedyskutowana na podstawie chemicznej analizy próbek świeżego moczu pobranych od 75 osób zamieszkałych w rejonie zakładu i 100 osób z rejonu referencyjnego oraz odpowiedzi na pytania w specjalnie przygotowanym kwestionariuszu. Stwierdzono,...
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Towards a global historical emission inventory for selected PCB congeners - a mass balance approach. 3. An update
PublicationPoprzednie prace autorów zawierały bardzo istotne informacje do oceny stężeń związków polychlorobifenylowych (PCB) w rejonach oddalonych od dużych źródeł emisji tych związków jak i w środowisku globalnym. Okazało się, że niezbędna jest modyfikacja emisji PCB po roku 2000. Przedstawiono nowe dane o produkcji PCB w Polsce oraz nowe dane nt. składu chemicznego różnych produktów technicznych opartych na PCB. Ulepszono też metody oceny...
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Determination of pharmaceutical residues in drinking water in Poland using a new SPE-GC-MS(SIM) method based on Speedisk extraction disks and DIMETRIS derivatization
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Heavy-metal tolerance of photobiont in pioneer lichens inhabiting heavily polluted sites
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Simultaneous analysis of non-steroidal anti-inflammatory drugs and estrogenic hormones in water and wastewater samples using gas chromatography–mass spectrometry and gas chromatography with electron capture detection
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Effects of environmentally relevant concentrations of diclofenac in Mytilus trossulus
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Uptake, accumulation, and translocation of Zn, Cu, Pb, Cd, Ni, and Cr by P. australis seedlings in an urban dredged sediment mesocosm: Impact of seedling origin and initial trace metal content
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Beta-blockers in the environment: Part II. Ecotoxicity study
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Effects of five sulphonamides on duckweed (Lemna minor) after prolonged exposure time and their dependency on photoradiation
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Simultaneous determination of non-steroidal anti-inflammatory drugs and oestrogenic hormones in environmental solid samples
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Anti-inflammatory drugs in the Vistula River following the failure of the Warsaw sewage collection system in 2019
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Beta-blockers in the environment: Part I. Mobility and hydrolysis study
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Deep sea habitats in the chemical warfare dumping areas of the Baltic Sea
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Elemental and organic carbon in aerosols over urbanized coastal region (southern Baltic Sea, Gdynia)
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Sea-dumped ammunition as a possible source of mercury to the Baltic Sea sediments
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TiO2 nanotube arrays-based reactor for photocatalytic oxidation of parabens mixtures in ultrapure water: Effects of photocatalyst properties, operational parameters and light source
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Phototransformation of sulfamethoxazole under simulated sunlight: Transformation products and their antibacterial activity toward Vibrio fischeri
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Study of the influence of the matrix characteristics over the photocatalytic ozonation of parabens using Ag-TiO2
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Photocatalytic ozonation using doped TiO2 catalysts for the removal of parabens in water
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A geophysical, geochemical and microbiological study of a newly discovered pockmark with active gas seepage and submarine groundwater discharge (MET1-BH, central Gulf of Gdańsk, southern Baltic Sea)
PublicationHigh-resolution bathymetric data were collected with a multi-beam echosounder in the southern part of the Baltic Sea (region MET1, Gulf of Gdańsk) revealing the presence of a 10 m deep and 50 m in diameter pockmark (MET1-BH) on the sea bottom (78.7 m). To date, no such structures have been observed to reach this size in the Baltic Sea. The salinity of the near-bottom water in the pockmark was about 2 PSU (about 31.22 mmol/l...
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Weather aging effects on modified asphalt with rubber-polyethylene composites
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Co-etching effect to convert waste polyethylene terephthalate into hierarchical porous carbon toward excellent capacitive energy storage
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Chemical modification of tannins from Acacia mearnsii to produce formaldehyde free flocculant
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Morphochemical investigation on the enrichment and transformation of hazardous elements in ash from waste incineration plants
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Interactive assessment of lignite and bamboo-biochar for geochemical speciation, modulation and uptake of Cu and other heavy metals in the copper mine tailing
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Recent trends in advanced oxidation process-based degradation of erythromycin: Pollution status, eco-toxicity and degradation mechanism in aquatic ecosystems
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A comprehensive review of biogeochemical distribution and fractionation of lead isotopes for source tracing in distinct interactive environmental compartments
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Environmental emission, fate and transformation of microplastics in biotic and abiotic compartments: Global status, recent advances and future perspectives
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The impact of potential leakage from the sub-seabed CO2 storage site on the phosphorus transformation in marine sediments – An experimental study
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Impact of methane occurrence on iron speciation in the sediments of the Gdansk Basin (Southern Baltic Sea)
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Biogeochemical and mineralogical effects of Fe-P-S dynamics in sediments of continental shelf sea: Impact of salinity, oxygen conditions, and catchment area characteristics
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Long-term exposure to urban air pollution and the relationship with life expectancy in cohort of 3.5 million people in Silesia
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Preliminary study of possible relationships between exposure to PCDD/Fs and dl-PCBs in ambient air and the length of life of people
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Potential negative effect of long-term exposure to nitrofurans on bacteria isolated from wastewater
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Phytochemical parasite-host relations and interactions: A Cistanche armena case study
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Terrestrial animal livers as a source of PCDD/Fs, PCBs and PBDEs in the diet
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Framework for the use of odour wheels to manage odours throughout wastewater biosolids processing
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Mercury emission to the atmosphere from anthropogenic sources in Europe in 2000 and their scenarios until 2020
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Impact of forecasted changes in Polish economy (2015 and 2020) on nutrient emission into the river basins
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Household and community systems for groundwater remediation in Bihar, India: Arsenic and inorganic contaminant removal, controls and implications for remediation selection
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Impact of pollution derived from ship wrecks on the marine environment on the basis of s/s ''Stuttgart'' (Polish coast, Europe)
PublicationW 1943 roku niemiecki statek szpitalny, s/s Stuttgart (Lazaretschiff ''C'') został zatopiony w pobliżu portu w Gdyni. Doprowadziło to do zanieczyszczenia dna morskiego paliwem. Podczas badań przeprowadzonych w 2009 r. pobranych zostało 11 próbek osadów powierzchniowych i wody morskiej oraz 4 rdzenie. Próbki poddano analizie na zawartość zanieczyszczeń priorytetowych należących do grupy wielopierścieniowych węglowodorów aromatycznych...
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Evaluation the environmental fate of pharmaceuticals using a level III model based on poly-parameter linear free energy relationships
PublicationOpisano możliwości zastosowania modelu ''Level III Model'' do opisu losu środowiskowego pozostałości farmaceutyków w środowisku. Zastosowany model umożliwia oszacowanie trwałości, stężeń oraz transportu poszczególnych zanieczyszczeń pomiędzy poszczególnymi elementami składowymi środowiska (powietrze, woda, gleba i osady denne).
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Relationship between seawater pollution and qualitative changes in the extracted proteins from mussels Mytilus galloprovincialis
PublicationCelem badań było znalezienie wiarygodnego bioznacznika dla oceny poziomu zanieczyszczenia wody morskiej. W tym celu porównano:-zawartość żelaza (Fe) oraz miedzi (Cu)-białek-poziomu aktywności przeciwutleniającejmałży (Mytilus galloprovincialis)zebranych z rejonów zanieczyszczonych i niezanieczyszczonych bułgarskiej strefy ekonomicznej Morza Czarnego.W badanich wykorzystano takie techniki analityczne jak: -spektroskopia w podczerwieni...
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Mercury emission to the atmosphere from anthropogenic sources in Europe in 2000 and their scenarios until 2020
PublicationPrzedstawiono obecny stan wiedzy na temat emisji rtęci ze źródeł antropogenicznych na terenie Europy w roku 2000. Zebrane dane stanowiły bazę wyjściową do opracowania scenariuszy emisji do roku 2020. Ponad połowa całkowitej emisji, szacowanej na 239 tony, pochodzi z energetyki przemysłowej oraz gospodarstw domowych i jest związana ze spalaniem stałych nośnikow energii. Istotnym źródłem emisji jest również produkcja cementu (ok....
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The exposure to UV filters: Prevalence, effects, possible molecular mechanisms of action and interactions within mixtures
PublicationSubstances that can absorb sunlight and harmful UV radiation such as organic UV filters are widely used in cosmetics and other personal care products. Since humans use a wide variety of chemicals for multiple purposes it is common for UV filters to co-occur with other substances either in human originating specimens or in the environment. There is increasing interest in understanding such co-occurrence in form of potential synergy, antagonist,...