Filters
total: 1201
-
Catalog
- Publications 687 available results
- Journals 4 available results
- Conferences 7 available results
- Publishing Houses 1 available results
- People 49 available results
- Inventions 54 available results
- Projects 7 available results
- Research Teams 1 available results
- e-Learning Courses 166 available results
- Events 33 available results
- Open Research Data 192 available results
displaying 1000 best results Help
Search results for: UML
-
Badania marketingowe MSU4 online - 2023
e-Learning CoursesZarządzanie (MSU4 online), studia niestacjonarne II stopnia, sem. 1. Celem przedmiotu jest nabycie przez studentów wiedzy o różnych metodach pozyskiwania i analizy informacji niezbędnych do prowadzenia działalności marketingowej.
-
Antoni Taraszkiewicz prof. dr hab. inż. arch.
People -
Comparison of hydrophilic interaction and reversed phase liquid chromatography coupled with tandem mass spectrometry for the determination of eight artificial sweeteners and common steviol glycosides in popular beverages
PublicationHydrophilic interaction liquid chromatography (HILIC) coupled with tandem mass spectrometry (MS/MS) was used to separate artificial and natural sweeteners approved for use in European Union (EU). Among three tested HILIC columns (BlueOrchid PAL-HILIC, Ascentis Express Si and Acclaim™ Trinity™ P2) the last one was selected for the development of HILIC method due to the best results obtained with it. Early eluting and coeluting compounds...
-
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...
-
Determination of high-intensity sweeteners in beverages by high-performance liquid chromatography with mass spectrometry detection.
PublicationThe objective of the present study was to measure the concentration of nine high intensity sweeteners (acesulfame-K, aspartame, alitame, cyclamate, dulcin, neohesperidin dihydrochalcon, neotame, saccharin and sucralose) in different types of beverages available on the polish market. The proposed methodology reported here consists of a extraction with buffer composed of formic acid and N,N-diisopropylethylamine (pH 4.5) followed...
-
Neurotrophic factors in human milk in early lactation and the effect of Holder and microwave pasteurization on their concentrations
PublicationObjective: The objective of this study was to determine the level of brain-derived neurotrophic factor (BDNF) and glial cell line-derived neurotrophic factor (GDNF) in human milk in the first two weeks of breastfeeding and compare of the effects of Holder pasteurization (HoP, 62.5°C, 30 minutes) and microwave pasteurization (MP) at constant temperature (62.5°C) on the concentraion of both neurotrophic factors (NFs). Methods: Concentration...
-
Comparative study on total nitrogen prediction in wastewater treatment 1 plant and effect of various feature selection methods on machine learning algorithms performance
PublicationWastewater characteristics prediction in wastewater treatment plants (WWTPs) is valuable and can reduce the number of sampling, energy, and cost. Feature Selection (FS) methods are used in the pre-processing section for enhancing the model performance. This study aims to evaluate the effect of seven different FS methods (filter, wrapper, and embedded methods) on enhancing the prediction accuracy for total nitrogen (TN) in the WWTP...
-
Novel 5-Substituted 2-(Aylmethylthio)-4-chloro-N-(5-aryl-1,2,4-triazin-3-yl)benzenesulfonamides: Synthesis, Molecular Structure, Anticancer Activity, Apoptosis-Inducing Activity and Metabolic Stability
PublicationA series of novel 5-substituted 2-(arylmethylthio)-4-chloro-N-(5-aryl-1,2,4-triazin-3-yl) benzenesulfonamide derivatives 27–60 have been synthesized by the reaction of aminoguanidines with an appropriate phenylglyoxal hydrate in glacial acetic acid. A majority of the compounds showed cytotoxic activity toward the human cancer cell lines HCT-116, HeLa and MCF-7, with IC50 values below 100 M. It was found that for the analogues 36–38...
-
Comparison of GC–MS and MEKC methods for caffeine determination in preworkout supplements
PublicationIn this study, GC–MS- and MEKC-based methods for determination of caffeine (CAF) in preworkout supplements were developed and validated. The proposed protocols utilized minimal sample preparation (simple dilution and syringe filtration). The developed methods achieved satisfactory validation parameters, i.e. good linearity (R2 0.9988 and R2 0.9985 for GC–MS- and MEKC-based method, respectively), satisfactory intraand interaccuracy...
-
Stabilities of bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, and their derivatives under controlled conditions analyzed using liquid chromatography coupled with tandem mass spectrometry
PublicationBisphenol A diglycidyl ether (BADGE), bisphenol F diglycydyl ether (BFDGE), and their related compounds are widely used as precursors in production of epoxy resins. The high reactivity of these compounds makes the development of analytical methodologies that ensure appropriate metrological accuracy crucial. Consequently, we aimed to determine whether and to what extent the composition of the solution and storage conditions affect...
-
Quality control of cheese samples for the presence of natamycin preservative – A natural deep eutectic solvent (NADES) based extraction coupled with HPLC
PublicationA new protocol for the determination of natamycin – an antifungal agent used as a food preservative - in cheese samples – is described. This new method is based on a natural deep eutectic solvent (NADES) green extraction procedure. High-performance liquid chromatography (HPLC) was used for detection and quantification. NADESs with different molar ratios were evaluated for efficient and selective extraction. NADES made of thymol...
-
Synthesis, characterization and application of cross-linked functional terpolymer through epoxy group as sorbent for extraction of cadmium from waters and foods: Multivariate optimization
PublicationThe purpose of this study was to develop a selective sorbent for cadmium ions (Cd(II)) enrichment in orbital shaker assisted solid phase microextraction (OS-SPME) from different aqueous and food samples. A maleic anhydride-styrene-glycidyl methacrylate (MA-St-GMA) terpolymer was synthesized and characterized in detail. Experimental variables of sample preparation step were optimized using a central composite design (CCD). The final...
-
Green capsule phase microextraction employing hydrophobic monolithic sol-gel octadecyl siloxane platforms for the monitoring of organophosphorus pesticides in environmental water samples
PublicationIn this study, a novel, facile and green capsule phase microextraction (CPME) method is presented for the extraction and preconcentration of organophosphorus pesticides (i.e., chlorpyrifos, disulfoton, ethoprophos, fenchlorphos, prothiofos, and parathion-methyl) from environmental water samples. Monolithic sol-gel octadecyl siloxane (sol-gel C18) sorbent encapsulated within porous polypropylene capsules was synthesized, characterized,...
-
Emerging oxidized and defective phases in low-dimensional CrCl3
PublicationTwo-dimensional (2D) magnets such as chromium trihalides CrX3 (X ¼ I, Br, Cl) represent a frontier for spintronics applications and, in particular, CrCl3 has attracted research interest due its relative stability under ambient conditions without rapid degradation, as opposed to CrI3. Herein, mechanically exfoliated CrCl3 flakes are characterized at the atomic scale and the electronic structures of pristine, oxidized, and defective...
-
Effect of Arc Strikes on High Strength Low Alloy Steels Welded by SMAW
PublicationWet welding with covered electrodes (Shielded Metal Arc Welding – SMAW) is the most commonly used method of carrying out welding repair works in a water environment. Limited visibility and the inability to move freely under water result in an increased risk of formation of welding imperfections such as lack of fusion, lack of penetration and arc strikes. The work focused on changes in the properties and structure of steel subjected...
-
Discriminating macromolecular interactions based on an impedimetric fingerprint supported by multivariate data analysis for rapid and label-free Escherichia coli recognition in human urine
PublicationThis manuscript presents a novel approach to address the challenges of electrode fouling and highly complex electrode nanoarchitecture, which are primary concerns for biosensors operating in real environments. The proposed approach utilizes multiparametric impedance discriminant analysis (MIDA) to obtain a fingerprint of the macromolecular interactions on flat glassy carbon surfaces, achieved through self-organized, drop-cast,...
-
Recykling tworzyw polimerowych (PG_00039687) - WYKŁAD / LABORATORIUM
e-Learning CoursesKierunek: Inżynieria materiałowa (Stuia II Stopnia)Specjalność: Inżynieria materiałów polimerowychRok akademicki: 2022/2023Odpowiedzialny za przedmiot: prof. dr hab. inż. Janusz Datta
-
Polimerowe materiały konstrukcyjne (PG_00039686) - WYKŁAD / LABORATORIUM
e-Learning CoursesKierunek: Inżynieria materiałowa (Studia II Stopnia)Specjalność: Inżynieria materiałów polimerowychRok akademicki: 2022/2023Odpowiedzialny za przedmiot: prof. dr hab. inż. Janusz Datta
-
Szkolenia pracownicze - ZZL 48
e-Learning CoursesZakres przedmiotu szkolenia pracownicze dotyczy trzech najważniejszych etapów realizacji procesu szkoleniowego w organizacjach: badania potrzeb szkoleniowych organizacji szkoleń pracowniczych oceny efektów szkoleń.
-
Laboratorium fizyki środowiska (FSIOZE1007)
e-Learning CoursesSpecjalność: Fizyka stosowana (WFTiMS), I stopnia - inżynierskie, stacjonarne, 2022/2023 - zimowy (obecnie sem. 4) Specjalność: Inżynieria odnawialnych źródeł energii (WFTiMS), I stopnia - inżynierskie, stacjonarne, 2022/2023 - zimowy (obecnie sem. 4)
-
UKZJK 2020-2021
e-Learning CoursesAutorzy: zawartość merytoryczna: Marta Jankowska, Agnieszka Lendzion, zawartość techniczna: Anita Dąbrowicz-Tlałka. Kurs zawiera materiały związane ze spotkaniami UKZJK w roku akademickim 2020/2021.
-
The effect of transglutaminase on the properties of salmon skin-gelatin films
PublicationCelem pracy była enzymatyczna modyfikacja folii otrzymanych z żelatyny rybnej. Źródłem żelatyny były surowe i wędzone skóry łososia. Stwierdzono, że czas żelowania roztworu żelatyny ulegał skróceniu w obecności transglutaminazy w badanym zakresie 0,1-0,2 mg/ml. Enzymatyczne modyfikacje prowadziły do obniżenia rozpuszczalności folii, jednakże w różnym stopniu zależnym od źródła białka. Obecność DTT lub cysteiny w mieszaninie reakcyjnej...
-
Analiza technologiczna i ekonomiczna wykonania stropów w budynku wpisanym do rejestru zabytków
PublicationW artykule przedstawia się analizę wybranych rozwiązań technologicznych dotyczących wymiany i wzmocnienia stropów w ramach inwestycji: Przebudowa, rozbudowa i rewaloryzacja zabytkowego budynku zlokalizowanego przy ul. Lastadia 2 w Gdańsku. Analizie poddaje się trzy alternatywne rozwiązania - wykonanie nowego stropu Kleina, nowej płyty żelbetowej oraz kompleksowe wzmocnienie istniejącego stropu. Wskazuje się zalety i wady każdego...
-
Audit of the existing surfaces /pavements of sidewalks and roads in the Gdańsk-Oliwa district, with particular emphasis on the location of the "Polanki" market and its direct neighbourhood in the contexts of pavement design of the "Polanki"market; stage from 2019 year.
Open Research DataThe document presents a valorization of paved surfaces (sidewalks and roads) in the Gdańsk-Oliwa district, prapared on the basis of an preliminary inventory work – 21 tables (one table for each street ) with a description of the street and materials used, mostly supplemented with photographic material. The valorization, after the initial inventory,...
-
Methane (CH4) calibration set of FTIR spectra
Open Research DataThe calibration spectra for CH4 concentration calibration were supplied with this dataset
-
Carbon (II) oxide (CO) calibration set of FTIR spectra
Open Research DataThe calibration spectra for CO concentration calibration were supplied with this dataset
-
The electrochemical studies of CB-PLA electrode after surface activation by proteinase K digestion
Open Research DataThe dataset contains the electrochemical studies performed to evaluate surface activation of the CB-PLA 3D printed electrodes by enzymatic hydrolysis in a solution containing proteinase K (72h digestion period). Different enzyme concentrations were evaluated: 0.2, 0.4, 0.6 and 0.8 mg/ml. The studies were performed before surface activation, during and...
-
Carbon dioxide (CO2) calibration set of FTIR spectra
Open Research DataThe calibration spectra for CO2 concentration calibration were supplied with this dataset
-
Dynamic impedance data for various carboxylic acids corrosion inhibition of aluminium in alkaline media (pH=11)
Open Research DataThis dataset contains the results of Dynamic Electrochemical Impedance Spectroscopy (DEIS) carried out in galvanostatic mode under iDC=0, carried out in order to define the corrosion inhibition effect of various studied carboxylic acids: citric acid, malic acid, maleic acid, succinic acid, tartaric acid, carballylic acid, and serine. The experiment...
-
Determination of cytotoxic activity of new bisacridines IKE18, IKE19, IKE21 and IE10 against human kidney HEK-293 (ATCC® CRL-1573™) and liver cells HEPG2 (ATCC® HB-8065™)
Open Research DataThe datasets contain the results of determining in vitro cytotoxic activity of compounds using human cell lines assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, a method that evaluates cell viability by measuring cellular oxidoreductase activity. Initially, cells were seeded in 96-well culture plates and allowed...
-
Nanotechnologia 2022/23
e-Learning CoursesNiniejszy kurs zawiera materiały z przedmiotu Nanotechnologia dla kierunków: Technologia Chemiczna (I sem., II st.) Inżynieria Biomedyczna (I sem., II st.) Chemia (I sem., II st.)
-
UKZJK 2021-2022
e-Learning CoursesAutorzy: zawartość merytoryczna: Marta Jankowska, Agnieszka Lendzion, Barbara Urbańska, zawartość techniczna: Anita Dąbrowicz-Tlałka. Kurs zawiera materiały związane ze spotkaniami UKZJK w roku akademickim 2021/2022.
-
Technologia Betonów II 2023/24
e-Learning CoursesZaawansowana technologia betonu. Betony specjalne i specjalne techniki betonowania: fibrobetony betony architektoniczne, lekkie betony kruszywowe, SCC, betonowanie podwodne.
-
Nanotechnologia 2023/24
e-Learning CoursesNiniejszy kurs zawiera materiały z przedmiotu Nanotechnologia dla kierunków: Technologia Chemiczna (I sem., II st.) Inżynieria Biomedyczna (I sem., II st.) Chemia (I sem., II st.)
-
Informatyczne zarządzanie projektem transportowym / TiL / WIMiO / II stopnia, stacjonarne 22/23(PG_00057116)
e-Learning CoursesMateriały wspierające przedmiot "Informatyczne Zarządzanie Projektem Transportowym" Transport i Logistyka, II stopnia (stacjonarne) semestr zimowy 21/22 Podstawowa lista lektur: Trocki M.: Zarządzanie projektami. Warszawa. Polskie Wydawnictwo Ekonomiczne. 2009. Pawlak M.: Zarządzanie projektami. Warszawa. Wydawnictwo naukowe PWN. 2006. Dudka A., Systemy informatyczne zarządzania Microsoft Business Solu tions Navision,...
-
Skutki przestrzenne przedsięwzięć realizowanych z udziałem środków unijnych w Gdyni
PublicationGdynia odnosi sukcesy w pozyskiwaniu środków unijnych na przedsięwzięcia rozwojowe. W artykule analizowane są: park naukowo-technologiczny, rewitalizacja ul Świętojanskiej, marina i rozwój frontu wodnego, rozwój dróg miejskich, rozwój przyjaznego środowiska transportu publicznego, budowa kolektora kanalizacyjnego dla nowego obszaru rozwojowego oraz modernizacja tradycyjnej przystani rybackiej w Gdyni Orłowie. Znaczenie tych przedsięwzięć...
-
Effect of pH and high pressure at sub-zero temperature on the viability of some bacteria
PublicationCelem badań było określenie przeżywalności Escherichia coli i Staphylococcus aureus zawieszonych w soku jabłkowym (pH 3,8) po działaniu ciśnienia 193MPa w temperaturze -20°C. Stwierdzono, że bezpośrednio po działaniu ciśnienia przeżywalność badanych szczepów bakterii nie zmieniała się znacząco. Jednakże liczba komórek zmniejszała się z czasem przechowywania ciśnieniowanych prób. Żywe komórki mikroorganizmów nie były wykrywane w...
-
Automatic tuning of a resonant circuit in wireless power supply systems for biomedical sensors
PublicationIn this paper, a tuning method of a resonant circuit suited for wireless powering of miniature endoscopic capsules is presented and discussed. The method allows for an automatic tuning of the resonant frequency and matching impedance of a full wave rectifier loading the resonant circuit. Thereby, the receiver tunes so as to obtain the highest power efficiency under given conditions of transmission. A prototype receiver for wireless...
-
Effect of transglutaminase on the solubility of chitosan-gelatin films
PublicationCelem pracy było zmniejszenie rozpuszczalności folii chitozanowo-żelatynowych w środowisku wodnym o różnym pH, poprzez usieciowanie składników przy użyciu transglutaminazy. Niemodyfikowane enzymatycznie folie rozpuszczały się w temperaturze pokojowej w 86 i 64% odpowiednio w buforze o pH 3 i 6. Ich rozpuszczalność została ograniczona do 19-23% po usieciowaniu polimerów enzymem w stężeniu 0.2mg/ml filmotwórczego roztworu. Enzymatycznie...
-
SiMiSnoRNA: Collection of siRNA, miRNA, and snoRNA database for RNA Interference
PublicationObjective:The discovery of sequence specific gene silencing which occurs due to the presence of double-stranded RNAs has considerable impact on biology, revealing an unknown level of regulation of gene expression. This process is known as RNA interference (RNAi) or RNA silencing in which RNA molecules inhibit gene expression, typically by causing the destruction of specific mRNA molecule. Two types of small RNA molecules - small...
-
Determination of trace levels of eleven bisphenol A analogues in human blood serum by high performance liquid chromatography–tandem mass spectrometry
PublicationChemicals showing structural or functional similarity to bisphenol A (BPA), commonly called BPA analogues, have recently drawn scientific attention due to their common industrial and commercial application as a substitute for BPA. In the European Union, the use of BPA has been severely restricted by law due to its endocrine disrupting properties. Unfortunately, it seems that all BPA analogues show comparable biological activity,...
-
Determination of free tyrosine in equestrian supplements by LC–MS/MS and comparison of its quantity with total free amino acids content in view of doping control
PublicationThe reports on the probable beneficial impact of tyrosine (TYR) supplementation on performance enhancement have contributed to the growth of interest in TYR in equestrian sports field and related industries, such as the manufacture of dietary and nutritional supplements. In this study, the first attempt to the assessment of horses exposure to TYR during nutritional supplementation was demonstrated by quantification of unbound TYR...
-
Nanoparticle-assisted biohydrogen production from pretreated food industry wastewater sludge: Microbial community shifts in batch and continuous processes
PublicationBiohydrogen production from industrial waste has gained a significant attention as a sustainable energy source. In this study, the enrichment of biohydrogen production from pretreated dissolved air flotation (DAF) sludge, generated from food industry wastewater treatment plants, was investigated using SiO2@Cu-Ag dendrites cor- e–shell nanostructure (NS). The effect of NS on the changes of the microbial community and biohydrogen...
-
Identification and cloning of C. albicans SC5314 genes encoding L-methionine biosynthetic pathway enzymes.
Open Research DataEnzymes of fungal L-methionine biosynthetic pathway: homoserine O-acetyltransferase (Met2p), O-acetylhomoserine sulfhydrylase (Met15p) and cystathionine-γ-synthase (Str2p) could be exploited as molecular targets for antifungal chemotherapy. The goal of the study was to identify and clone genes encoding mentioned above enzymes. MET2, MET15 and STR2 genes...
-
Programowanie w SAS 2024
e-Learning CoursesCelem przedmiotu jest: zapoznanie studenta z językiem programowania SAS 4GL zaznajomienie z zasadami makroprogramowania w SAS przedstawienie możliwości zastosowania zdobytych umiejętności w praktyce Ilustracja do kursu wygenerowana przez AI
-
Zarządzanie projektami geoinformatycznymi
e-Learning CoursesCel kursu: Zapoznanie studentów z podstawami zarządzania projektami. Zapoznanie studentów z metodyką PRINCE2 zarządzania projektami. Zapoznanie studentów zakresem projektu GIS. Zapoznanie studentów z etapami metodyki planowania GIS
-
Zespół Inżynierii Mikrofalowej i Antenowej
Research TeamsSpecjalność badawcza KIMiA wiąże się z techniką b.w.cz. i dotyczy zakresu częstotliwości od setek megaherców do kilkudziesięciu gigaherców. Przedmiotem badań teoretycznych (analiza, synteza, symulacja i modelowanie komputerowe,) oraz eksperymentalnych są elementy (prowadnice, sprzęgacze, rozgałęzienia) oraz układy pasywne (cyrkulatory, przesuwniki fazy, obciążenia, tłumiki) i aktywne (wzmacniacze, mieszacze, powielacze, modulatory),...
-
Effects of solution composition and electrophoretic deposition voltage on various properties of nanohydroxyapatite coatings on the Ti13Zr13Nb alloy
PublicationThe purpose of the research was to establish the influence of the solution composition and the electrophoretic deposition voltage on the coating homogeneity and thickness, nanohardness, adhesion, corrosion resistance and wettability. The Ti13Zr13Nb alloy was coated by the electrophoretic technique with hydroxyapatite in a solution containing 0.1, 0.2 or 0.5 g nanoHAp in 100 mL of suspension and at voltage 15, 30 or 50 V. The scanning...
-
Data on LEGO sets release dates and retail prices combined with aftermarket transaction prices between June 2018 and June 2023.
Open Research DataThe dataset contains LEGO bricks sets item count and pricing history for AI-based set pricing prediction.
-
Mikrobiologia II - 2021-22
e-Learning CoursesWykład przeznaczony dla: Specjalność: Biotechnologia molekularna (WCh), I stopnia - inżynierskie, stacjonarne, Rok: 4, semestr: 7 Prowadzący: dr hab. Beata Krawczyk, prof. uczelni (Bud. CHB, p.218); współprowadzenie mgr inż. Bartosz Ostrowski Przedmiot jest prowadzony w formie stacjonarnej (s.27; CHA), laboratoria będą prowadzone metodą tradycyjną na PG (sala 17, WCH C). kontakt z prowadzącym e-kurs: tel. 58 347-23-83; e-mail:...