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total: 885
Search results for: 1904-1939
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The topography of Bi2VO5.5 ceramic measured with SEM and confocal microscope
Open Research DataThe topography of Bi2VO5.5 ceramics was measured by SEM and confocal microscope.
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Bisphenol A analogues and metabolic syndrome in women with polycystic ovary syndrome
PublicationBisphenols (BPs) have become a chemical group of special interest due to their ability to interfere with the endocrine system and their ubiquitous presence in the environment. As some of them possess mild estrogenic and anti-androgenic effects, they might be associated with the diagnosis of polycystic ovary syndrome (PCOS). Acting on multiple tissues, BPs exposure may lead to metabolic derangements characteristic for metabolic...
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Removal of indicator bacteria from treated wastewater using physical and chemical methods. Pilot plant study.
PublicationEven after highly efficient biological processes the effluents from wastewater treatment plants may contain significant number of fecal bacteria, from 104 to 106 CFU/100 mL. Since no standards are set on the bacteriological quality of treated wastewater in Poland the elimination of bacterial contaminants is not a priority in wastewater treatment policy. Thus microbiological hazards become particularly significant in the situation...
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Prediction of protein assemblies, the next frontier: The CASP14‐CAPRI experiment
PublicationWe present the results for CAPRI Round 50, the 4th joint CASP-CAPRI protein assembly prediction challenge. The Round comprised a total of 12 targets, including 6 dimers, 3 trimers, and 3 higher-order oligomers. Four of these were easy targets, for which good structural templates were available either for the full assembly, or for the main interfaces (of the higher-order oligomers). Eight were difficult targets for which only distantly...
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Research of Emergency Modes of Wind Power Plants Using Computer Simulation
PublicationThe aim of this study is to investigate changes in the wind power plant energy production parameters under the conditions of sudden wind changes and voltage drop. To achieve these goals, a simulation of operation of wind power plants was performed. Twelve wind turbines with variable rotational speed equipped with a Fuhrländer FL 2500/104 asynchronous double-fed induction generator (DFIG) were used, each with an installed capacity...
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Konstrukcja nowych układów do diagnostyki molekularnej zakażeń o etiologii Candida spp.
PublicationDrożdżaki z rodzaju Candida należą do jednych z najczęściej izolowanych czynników etiologicznych zakażeń krwi. Szybka i bezbłędna identyfikacja gatunkowa pozwala na wdrożenie odpowiedniego leczenia i zwiększa szansę na powodzenie terapii. Celem badań była konstrukcja nowych układów wykorzystujących narzędzia diagnostyki molekularnej do specyficznej identyfikacji gatunkowej i rodzajowej drożdżaków Candida. Poszukiwano również nowych...
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Neutral Dissociation of Pyridine Evoked by Irradiation of Ionized Atomic and Molecular Hydrogen Beams
PublicationThe interactions of ions with molecules and the determination of their dissociation patterns are challenging endeavors of fundamental importance for theoretical and experimental science. In particular, the investigations on bond-breaking and new bond-forming processes triggered by the ionic impact may shed light on the stellar wind interaction with interstellar media, ionic beam irradiations of the living cells, ion-track nanotechnology,...
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A Study on Emission of Airborne Wear Particles from Car Brake Friction Pairs
PublicationThe emission of airborne wear particles from friction material / cast iron pairs used in car brakes was investigated, paying special attention to the influence of temperature. Five low-metallic materials and one non-asbestos organic material were tested using a pin-on-disc machine. The machine was placed in a sealed chamber to allow airborne particle collection. The concentration and size distribution of 0.0056 to 10 μm particles...
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Sesja jubileuszowa z okazji 25-lecia TASK
EventsZ okazji jubileuszu Rada Użytkowników TASK przy wsparciu CI TASK organizuje sesję „25-lecie porozumienia TASK”.
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Dia- and paramagnetic contributions to magnetizabilities of relativistic hydrogenlike atoms in some low-lying discrete energy eigenstates
PublicationIn this paper we present tabulated data for relative diamagnetic and paramagentic contributions to the magnetizability ($\chi$) of the relativistic hydrogenlike atoms with a pointlike, motionless and spinless nucleus of charge $Ze$. Utilizing general analytical formulas for the diamagnetic ($\chi_{d}$) and paramagnetic ($\chi_{p}$) components of $\chi$, recently derived by us [P. Stefa{\'n}ska, 2020] with the aid of the Gordon...
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Maciej Matciak doktor
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Database of the illustrative simulations of the nonstandard approximation of the generalized Burgers–Huxley equation
Open Research DataThe presented dataset is a result of numerical analysis of a generalized Burgers–Huxley partial differential equation. An analyzed diffusive partial differential equation consist with nonlinear advection and reaction. The reaction term is a generalized form of the reaction law of the Hodgkin–Huxley model, while the advection is a generalized form of...
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CONTRASTING MODERNISMS - ARCHITECTURE OF HARBOUR CITIES GDYNIA AND ALTONA
PublicationThe presentation of the exhibition “Architect Gustav Oelsner – Light, Air, Colour,”, which took place in Gdynia 1.04-29.05.2011, showed the clinker architecture of Gustav Oelsner in Altona. As a contrast to the white-plastered architecture of Gdynia, it provided an interesting background for the comparison of two different faces of modernism. The most important feature of the aesthetics of modernism was its cosmopolitan character,...
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Synthesis and characterization of cycloaliphatic hydrophilic polyurethanes, modified with l-ascorbic acid, as materials for soft tissue regeneration
PublicationIn this paper we described synthesis and characteristic of obtained hydrophilic polyurethanes (PURs) modified with ascorbic acid (commonly known as vitamin C). Such materials may find an application in the biomedical field, for example in the regenerative medicine of soft tissues, according to ascorbic acid wide influence on tissue regeneration Flora (2009), Szymańska-Pasternak et al. (2011), Taikarimi and Ibrahim (2011), Myrvik...
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Nitrogen-Incorporated Boron-Doped Nanocrystalline Diamond Nanowires for Microplasma Illumination
PublicationThe origin of nitrogen-incorporated boron-doped nanocrystalline diamond (NB-NCD) nanowires as a function of substrate temperature (Ts) in H2/CH4/B2H6/N2 reactant gases is systematically addressed. Because of Ts, there is a drastic modification in the dimensional structure and microstructure and hence in the several properties of the NB-NCD films. The NB-NCD films grown at low Ts (400 °C) contain faceted diamond grains. The morphology...
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A Framework for Searching in Graphs in the Presence of Errors
PublicationWe consider a problem of searching for an unknown target vertex t in a (possibly edge-weighted) graph. Each vertex-query points to a vertex v and the response either admits that v is the target or provides any neighbor s of v that lies on a shortest path from v to t. This model has been introduced for trees by Onak and Parys [FOCS 2006] and for general graphs by Emamjomeh-Zadeh et al. [STOC 2016]. In the latter, the authors provide...
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Optimal edge-coloring with edge rate constraints
PublicationWe consider the problem of covering the edges of a graph by a sequence of matchings subject to the constraint that each edge e appears in at least a given fraction r(e) of the matchings. Although it can be determined in polynomial time whether such a sequence of matchings exists or not [Grötschel et al., Combinatorica (1981), 169–197], we show that several questions about the length of the sequence are computationally intractable....
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ZMIANY TEMPERATURY POWIETRZA NA MORZACH ARKTYKI ROSYJSKIEJ I ICH KONSEKWENCJE DLA ŻEGLUGI NA PÓŁNOCNEJ DRODZE MORSKIEJ
PublicationPraca omawia zmiany średniej miesięcznej temperatury powietrza na morzach Arktyki Rosyjskiej w latach 1988-2013. Wartości średnie wieloletnie z tego okresu porównano z danymi podawanymi w locjach rosyjskich dla okresu 1936-1987. Stwierdzono, że w badanym okresie na wszystkich badanych stacjach doszło do wzrostu temperatury powietrza. Największy wzrost miał miejsce w sezonie chłodnym (o 1,5-2 deg). W sezonie ciepłym wzrosty były...
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Estimation and modeling hydrolysis of slowly biodegradable substrate based on the batch respirometric tests in activated sludge systems
PublicationNowadays, appropriate determination of chemical oxygen demand (COD) fractionation together with degradation kinetics of organic compounds have a prime importance on the design and operation of activated sludge systems. Batch respirometric tests based on the oxygen uptake rates (OUR) and corresponding COD is accepted method to reflect the consumption of biodegradable substrates. The influence of the readily biodegradable (Ss) fraction...
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Landscape Rurality: New Challenge for The Sustainable Development of Rural Areas in Poland
PublicationThe standard of country living was a matter of Polish elites’ concern from the eighteenth century. In different historical conditions different concepts of the rural renewal were formed. Today in rural areas of Poland some spatial processes that threaten the quality of life occur. The disadvantageous changes are the result of national or local governments spatial policy and they are an inhabitants’ response to it. The political...
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Gniazda przedsiębiorczości w polskim modelu miasta krawędziowego
PublicationOstatnie dwie dekady w Polsce to okres dynamicznego rozwoju zarówno sektora małych i średnich przedsiębiorstw, jak i przeobrażeń przestrzeni wokół miast. Rozwój ten nastąpił w okresie transformacji gospodarki po 1989 roku. Przemieszczanie się ludności i podmiotów gospodarczych z miasta centralnego spowodowało, że w niektórych polskich strefach podmiejskich wytworzyły się struktury terytorialne, które określamy jako gniazda przedsiębiorczości....
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Settlement Networks in Polish Spatial Development Regional Plans
PublicationIn 1999, ten years after the great political changes in Poland, 16 self-governed regions (in Polish: voivodeship) were created. According to Polish law, voivodeship spatial development plans, or regional plans in short, determine basic elements of the settlement network. No detailed regulations indicate the specific elements of the settlement network or what features of these elements should be determined. For this reason, centres...
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The aggregation of objects representing Katowice district buildings - scale 1:25000
Open Research DataThe process of automatic generalization is one of the elements of spatial data preparation for the purpose of creating digital cartographic studies. The presented data include a part of the process of generalization of building groups obtained from the national geodesy and cartography resource from BDOT10k (10k topographic database) [1].
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The aggregation of objects representing Katowice district buildings - scale 1:10000
Open Research DataThe process of automatic generalization is one of the elements of spatial data preparation for the purpose of creating digital cartographic studies. The presented data include a part of the process of generalization of building groups obtained from the national geodesy and cartography resource from BDOT10k (10k topographic database) [1].
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The structure of 70(2Bi2O3-V2O5) - 30SrBO7 measured with X-ray diffraction and SEM methods
Open Research DataThe structure changes of 70(2Bi2O3-V2O5)-30SrB4O7 glass occurred during increase in temperature was measured by XRD and SEM.
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Koncert na Nowy Rok
EventsWstęp wolny, liczba miejsc ograniczona. Obowiązuje rejestracja na stronie: https://bilety.pg.edu.pl/
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Wernisaż wystawy
EventsWystawa poświęcona brytyjskiej działaczce charytatywnej Sue Ryder. Wystawa potrwa do 19.03.2019 r.
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Chained machine learning model for predicting load capacity and ductility of steel fiber–reinforced concrete beams
PublicationOne of the main issues associated with steel fiber–reinforced concrete (SFRC) beams is the ability to anticipate their flexural response. With a comprehensive grid search, several stacked models (i.e., chained, parallel) consisting of various machine learning (ML) algorithms and artificial neural networks (ANNs) were developed to predict the flexural response of SFRC beams. The flexural performance of SFRC beams under bending was...
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Dissimilar autogenous TIG joint of Alloy 617 and AISI 304H steel for AUSC application
PublicationTo reduce costs and improve high-temperature performance in Advanced Ultra Super Critical (AUSC) boilers, it is necessary to weld austenitic steel to Inconel alloy. In this study, the autogenous tungsten inert gas (TIG) welding process was used to join Alloy 617 and an austenitic AISI 304H steel plate of thickness 5 mm. Microstructural analysis showed that the microstructure formation was uneven along the weldments, with columnar...
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Investigation into the Effect of Spinel Pigments on the Photostability and Combustion Properties of Ethylene-Norbornene Copolymer
PublicationMulticolor ethylene-norbornene (EN) composites filled with three different spinel pigments (Cobalt Green-PG50, Zinc Iron Yellow-PY 119, Praseodym Yellow-PY159) were prepared by melt mixing and characterized in terms of their stability under destructive environmental conditions. The EN films were subjected to accelerated aging by ultraviolet (UV) photooxidation for 300 h, 600 h, or 900 h. The mechanical performance of the EN composites...
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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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Marcin Wata dr
PeopleWykształcenie 1994–1999 UMK w Toruniu, Wydział Matematyki i Informatyki, Matematyka spec. informatyka, Praca magisterska „Algorytm Adlemana i Demarraisa wyliczania logarytmów dyskretnych w ciałach skończonych” 1999–2003 UMK w Toruniu, Wydział Matematyki i Informatyki, Studia doktoranckie z matematyki, 2004 UMK w Toruniu, Dyplom Doktora Nauk Matematycznych w zakresie matematyki, spec. analiza matematyczna, Praca doktorska:...
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Gamma oscillations precede interictal epileptiform spikes in the seizure onset zone
PublicationOBJECTIVE: To investigate the generation, spectral characteristics, and potential clinical significance of brain activity preceding interictal epileptiform spike discharges (IEDs) recorded with intracranial EEG. METHODS: Seventeen adult patients with drug-resistant temporal lobe epilepsy were implanted with intracranial electrodes as part of their evaluation for epilepsy surgery. IEDs detected on clinical macro- and research microelectrodes...
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Volatile Compound Emissions from Stereolithography Three-Dimensional Printed Cured Resin Models for Biomedical Applications
PublicationStereolithography three-dimensional printing is used increasingly in biomedical applications to create components for use in healthcare and therapy. The exposure of patients to volatile organic compounds (VOCs) emitted from cured resins represents an element of concern in such applications. Here, we investigate the biocompatibility in relation to inhalation exposure of volatile emissions of three different cured commercial resins...
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2 Latin letters by Georg Pauli (b.1586-d.1650) - transcription, translation and photographs
Open Research DataThe data set contains two Latin letters by Georg Pauli (b. 1586 – d. 1650) to his brother Adrian (d. 1622) in photographs, transcriptions, and translations into Polish and English. The first letter was sent by Georg from Gdańsk (formerly Danzig) in 1604 when he was still a student at the local Academic Gymnasium. The second one, in turn, was written...
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EKSPERTYZA TECHNICZNA DOTYCZĄCA USTALENIA: CZY ILOŚĆ KONDYGNACJI PRZEWIDZIANA W PROJEKCIE BUDOWLANYM BUDYNKU MIESZKALNO - USŁUGOWEGO W BYTOWIE, DZ. NR 23, U ZBIEGU ULICY KRÓTKIEJ Z ULICĄ JANA PAWŁA II, JEST ZGODNA Z ZAPISAMI MIEJSCOWEGO PLANU ZAGOSPODAROWANIA PRZESTRZENNEGO ŚRÓDMIEŚCIA BYTOWA (UCHWAŁA RADY MIASTA BYTOWA NR XIII/116/99 Z DNIA 26. LISTOPADA 1999 ROKU, OPUBLIKOWANA W DZIENNIKU URZĘDOWYM WOJEWÓDZTWA POMORSKIEGO NR 13/2000 POZ. 49) CZY PROJEKT BUDOWLANY BUDYNKU MIESZKALNO - USŁUGOWEGO W BYTOWIE, DZ. NR 23, U ZBIEGU ULICY KRÓTKIEJ Z ULICĄ JANA PAWŁA II, ZAWIERA ANALIZĘ WYSOKOŚCI I ODLEGŁOŚCI KOMINÓW BUDYNKU PROJEKTOWANEGO W ODNIESIENIU DO BUDYNKÓW SĄSIEDNICH ORAZ CZY PRZEPISY TECHNICZNO - BUDOWLANE OBOWIĄZUJĄCE W DNIU ZATWIERDZENIA TEGOŻ PROJEKTU (24. CZERWCA 2003 R.) NAKŁADAŁY BEZWZGLĘDNY OBOWIĄZEK ZAMIESZCZANIA TAKIEJ ANALIZY W PROJEKTACH BUDOWLANYCH
Publication...
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Cross-linking of sodium caseinate-structured emulsion with transglutaminase alters postprandial metabolic and appetite responses in healthy young individuals
PublicationThe physico-chemical and interfacial properties of fat emulsions influence lipid digestion and may affect postprandial responses. The aim of the present study was to determine the effects of the modification of the interfacial layer of a fat emulsion by cross-linking on postprandial metabolic and appetite responses. A total of fifteen healthy individuals (26·5 (sem 6·9) years and BMI 21·9 (sem 2·0) kg/m2) participated in a cross-over...
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Urszula Poślada mgr
PeopleWykształcenie wyższ - tytuł magistra bibliotekoznawstwa i informacji naukowo-technicznej otrzymany w 1993 roku. w UMCS Praca zawodowa - od 1993 roku Biblioteka Główna UMCS.
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Wystawy światowe w Barcelonie: Problemy zachowania dziedzictwa kulturowego
PublicationW prezentowanej Państwu książce przedmiotem analizy są obiekty architektoniczne wystaw światowych, które - pomimo tymczasowego charakteru imprez wystawowych - pozostają jako obiekty stałe. Konstrukcja książki wykorzystuje zasadę od ogółu do szczegółu, gdzie na tle subiektywnie wyselekcjonowanych przykładów historycznych, tymczasowych obiektów wystawowych przedstawiam przypadek dwóch szczegółowo przeanalizowanych pawilonów hiszpańskich...
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Video traffic data - Interchange Zakrzewo (S11-307), Poland
Open Research DataThe data includes video traffic data registered with 8 video cameras at weaving area (weaving section type A) of the Zakrzewo interchange within S11 expressway in Poland (interchange of expressway S11 and regional road 307), located in the Poznan Agglomeration. The data covers the two days: 20.09.2017 (expressway S11) and 21.09.2017 (road 307).
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Złocieniec 2021- video data - pedestrian, bicycles, vehicles
Open Research DataZłocieniec 2021- video data - pedestrian, bicycles, vehicles
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Interakcja momentu zginającego i siły osiowej w analizie nośności wybranych, cienkościennych przekrojów
PublicationObecnie w budownictwie coraz częściej wykorzystuje się lekkie konstrukcje stalowe, które posiadają korzystny stosunek ceny do nośności. Elementy takie uzyskuje się poprzez gięcie na zimno stosunkowo cienkich arkuszy blach i formowanie przekrojów w taki sposób, aby uzyskać oczekiwane wartości nośności. Za pomocą giętarki rolkowej bądź krawędziowej profiluje się ostateczny kształt przekroju, który dzięki dodatkowym usztywnieniom...
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Wieczorowa Szkoła Inżynierska (WSI) w Gdańsku – geneza powstania i działalność
PublicationSytuacja po II wojnie światowej, zniszczenia Gdańska i Pomorza, odbudowa przemysłu, przejmowane i uruchamiane zakłady przemysłowe wymagały coraz większej liczby fachowców, kadry inżynierskiej i technicznej. Z inicjatywy pracowników naukowych Politechniki Gdańskiej oraz techników zatrudnionych w przemyśle w październiku 1948 r. powstała samodzielna wyższa uczelnia techniczna: Wieczorowa Szkoła Inżynierska w Gdańsku dla pracujących,...
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DEFORMATIONS OF INNOVATIVE COLD-FORMED GEB SECTIONS
PublicationPermanent urban growth of the world of today world implies demanding challenges for the steel construction industry. Nowadays, one of the most important issues is the cost optimization of steel structures. Since the weight of building materials is a major component of the total cost, engineers and designers try to reduce structural weight, without compromising durability and sustainability of a steel structure. Therefore, light...
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Genotyping Techniques for Determining the Diversity of Microorganisms
PublicationTyping of microbial pathogens, or identifying bacteria at the strain level, is particularly important for diagnosis, treatment, and epidemiological surveillance of bacterial infections. This is especially the case for bacteria exhibiting high levels of antibiotic resistance or virulence, and those involved in nosocomial or pandemic infections. Strain typing also has applications in studying bacterial population dynamics. The part...
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The effect of slowly biodegradable substrate on the kinetics of biochemical processes in activated sludge bioreactors
PublicationCelem niniejszej rozprawy doktorskiej było określenie wpływu substratu wolnorozkładalnego (w postaci związków koloidalnych i zawiesinowych) na kinetykę wybranych procesów biochemicznych, zachodzących w komorach osadu czynnego (tj. denitryfikacja, uwalnianie i anoksyczny/tlenowy pobór fosforanów oraz pobór tlenu), opierając się na badaniach prowadzonych w dwóch dużych komunalnych oczyszczalniach ścieków "Wschód" w Gdańsku i "Dębogórze"...
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The effect of slowly biodegradable substrate on the kinetics of biochemical processes in activated sludge bioreactors
PublicationCelem niniejszej rozprawy doktorskiej było określenie wpływu substratu wolnorozkładalnego (w postaci związków koloidalnych i zawiesinowych) na kinetykę wybranych procesów biochemicznych, zachodzących w komorach osadu czynnego (tj. denitryfikacja, uwalnianie i anoksyczny/tlenowy pobór fosforanów oraz pobór tlenu), opierając się na badaniach prowadzonych w dwóch dużych komunalnych oczyszczalniach ścieków "Wschód" w Gdańsku i "Dębogórze"...
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Systematic review examining the evidence for impact of school policies on physical activity
PublicationBackground Epidemiological evidence has demonstrated that physical activity can have substantive health benefits for children and young people. The 'Policy Evaluation Network' is a multi-disciplinary research network across 7 European countries and New Zealand aimed at building capacity and evaluating the level of impact of policy interventions for promoting healthy lifestyles. The Toronto Charter identified 'whole-of-school' programmes...
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The effect of high pressure and sub-zero temperature on total antioxidant capacity and the content of vitamin C, fatty acids and secondary products of lipid oxidation in human milk
PublicationThe objective of this study was to compare of the effects of high pressure of 193 MPa at - 20°C and Low Temperature Long Time pasteurization (LTLT or holder pasteurization, 62,5°C; 30 min) on the content and composition of fatty acids (FAs), concentrations of secondary products of lipid oxidation (TBARS), the total antioxidant capacity (TAC), total vitamin C and ascorbic acid (AsA) content in human milk. It was shown that no significant...
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Potential of nanocomposites of zero valent copper and magnetite with Eleocharis dulcis biochar for packed column and batch scale removal of Congo red dye
PublicationThe current study is the first attempt to prepare nanocomposites of Eleocharis dulcis biochar (EDB) with nano zero-valent Copper (nZVCu/EDB) and magnetite nanoparticles (MNPs/EDB) for batch and column scale sequestration of Congo Red dye (CR) from synthetic and natural water. The adsorbents were characterized with advanced analytical techniques. The impact of EDB, MNPs/EDB and nZVCu/EDB dosage (1–4 g/L), pH (4–10), initial concentration...