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- Publikacje 567 wyników po odfiltrowaniu
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- Osoby 28 wyników po odfiltrowaniu
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Wyniki wyszukiwania dla: GAMMA NAIL
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Neuroendocrine tumor, grade 2 - Female, 61 - Tissue image [6300730028259891]
Dane BadawczeThis is the histopathological image of PANCREAS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Neuroendocrine tumor, grade 2 - Female, 61 - Tissue image [6300730028255761]
Dane BadawczeThis is the histopathological image of PANCREAS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Serous cystadenoma, NOS - Male, 74 - Tissue image [11020630022695691]
Dane BadawczeThis is the histopathological image of PANCREAS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Neuroendocrine tumor, grade 2 - Female, 61 - Tissue image [630073002825321]
Dane BadawczeThis is the histopathological image of PANCREAS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Michał Bernard Pietrzak dr hab.
OsobyMichał Bernard Pietrzak jest kierownikiem Katedry Statystyki i Ekonometrii na Wydziale Ekonomii i Zarządzania Politechniki Gdańskiej oraz zastępcą redaktora naczelnego ds. oceny pod względem poprawności statystycznej czasopism: Oeconomia Copernicana i Equilibrium. Quarterly Journal of Economics and Economic Policy. Do października 2021 pracował na stanowisku profesora nadzwyczajnego na Wydziale Nauk Ekonomicznych i Zarządzania,...
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Unusual odd-chain and trans-octadecenoic fatty acids in tissues of feral European beaver (Castor fiber), Eurasian badger (Meles meles) and raccoon dog (Nyctereutes procyonoides).
PublikacjaW lipidach wyizolowanych z różnych partii ciała bobrów, borsuków i jenotów stwierdzono obecność znaczących ilości niezwykłych jak na zwierzęta jednożołądkowe kwasów tłuszczowych - nieparzystowęglowych nasyconych i jednonienasyconych KT (15:0, 17:0, 15:1 i 17:1) oraz (w lipidach tkanek bobra i jenota) oktadecenowych KT konfiguracji trans, w tym kwasu wakcenowego - KT charakterystycznych dla tkanek i mleka przeżuwaczy. Obecność tych...
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Visualizing spatially decomposed intermolecular correlations in the infrared spectra of aprotic liquids
PublikacjaInfrared (IR) spectroscopy is commonly used to study intermolecular interactions in the liquid phase, including solvation phenomena. On the other hand, ab initio molecular dynamics (AIMD) simulations offer the possibility to obtain IR spectra from first principles. Surpassing the experiment, AIMD simulations can deliver additional information on the spatial intermolecular correlations underlying the IR spectrum of the liquid. Although...
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Application of ANN and PCA to two-phase flow evaluation using radioisotopes
PublikacjaIn the two-phase flow measurements a method involving the absorption of gamma radiation can be applied among others. Analysis of the signals from the scintillation probes can be used to determine the number of flow parameters and to recognize flow structure. Three types of flow regimes as plug, bubble, and transitional plug – bubble flows were considered in this work. The article shows how features of the signals in the time and...
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Investigation of use of hydrophilic/hydrophobic NADESs for selective extraction of As(III) and Sb(III) ions in vegetable samples: Air assisted liquid phase microextraction and chemometric optimization
PublikacjaIn this paper, a green, cost-effective sample preparation method based on air assisted liquid phase microextraction (AA-LPME) was developed for the simultaneous extraction of As(III) and Sb(III) ions from vegetable samples using hydrophilic/hydrophobic natural deep eutectic solvents (NADESs). Central composite design was used for the optimization of extraction factors including NADES volume, extraction cycle, pH, and curcumin concentration....
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Development of an orbital shaker-assisted fatty acid-based switchable solvent microextraction procedure for rapid and green extraction of amoxicillin from complex matrices: Central composite design
PublikacjaIn this study, a cheap, fast and simple orbital shaker-assisted fatty acid-based switchable solvent microextraction (OS-FASS-ME) procedure was developed for the extraction of amoxicillin (AMOX) in dairy products, pharmaceutical samples and wastewater prior to its spectrophotometric analysis. Fatty acid-based switchable solvents were investigated for extracting AMOX. The key factors of the OS-FASS-ME procedure were optimized using...
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Magnetic hydrophobic deep eutectic solvents for orbital shaker-assisted dispersive liquid-liquid microextraction (MAGDES-OS-DLLME) - determination of nickel and copper in food and water samples by FAAS
PublikacjaIn this work, a cheap and widely applicable dispersive liquid-liquid microextraction (DLLME) method was developed for the extraction of Ni(II) and Cu(II) from water and food samples and analysis using flame atomic absorption spectrometry. DLLME was assisted by orbital shaker, while ferrofluid as an extractant was based on deep eutectic solvent (DES). This ferrofluid was made of hydrophobic DES (hDES), composed of lauric acid and...
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Melanoma, metastatic - Male, 48 - Tissue image [612073003183831]
Dane BadawczeThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.
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Melanoma, metastatic - Male, 48 - Tissue image [6120730031838031]
Dane BadawczeThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.
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Melanoma, metastatic - Male, 48 - Tissue image [6120730031832641]
Dane BadawczeThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.
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Melanoma, metastatic - Male, 48 - Tissue image [6120730031838471]
Dane BadawczeThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.
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Melanoma, metastatic - Male, 48 - Tissue image [6120730031831681]
Dane BadawczeThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.
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Melanoma, metastatic - Male, 48 - Tissue image [612073003183651]
Dane BadawczeThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.
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Melanoma, metastatic - Male, 48 - Tissue image [6120730031835241]
Dane BadawczeThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 1000 slide scanner (20x magnification) and saved to DICOM format.
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Wyznaczanie współczynnika dyspersji metodą kondultometryczną
PublikacjaW artykule przedstawiono konduktometryczną metodę wyznaczania współczynnika dyspersji w przypadku jednowymiarowym statystyczną metodą Fischera. Obliczenia wykonano na podstawie pomiarów przewodności nierozkładalnego trasera w postaci roztworu solanki (NaCl). Do tego celu wykonane zostało stanowisko pomiarowe złożone z prostego odcinka rurociągu wykonanego z polipropylenu o średnicy D=15 mm i długości L=44,05 m. Na wlocie i wylocie...
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Role of size scale of ZnO nanoparticles and microparticles on toxicity toward bacteria and osteoblast cancer cells
PublikacjaThe specific role of size scale, surface capping, and aspect ratio of zinc oxide (ZnO) particles on toxicity toward prokaryotic and eukaryotic cells was investigated. ZnO nano and microparticles of controlled size and mor- phology were synthesized by wet chemical methods. Cytotoxicity toward mammalian cells was studied using a human osteoblast cancer cell line and antibacterial activity using Gram-negative bacteria (Escherichia...
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Comparison of anti-plane surface waves in strain-gradient materials and materials with surface stresses
PublikacjaHere we discuss the similarities and differences in anti-plane surface wave propagation in an elastic half-space within the framework of the theories of Gurtin–Murdoch surface elasticity and Toupin–Mindlin strain-gradient elasticity. The qualitative behaviour of the dispersion curves and the decay of the obtained solutions are quite similar. On the other hand, we show that the solutions relating to the surface elasticity model...
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Compressive Strength and Leaching Behavior of Mortars with Biomass Ash
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Transverse surface waves on a cylindrical surface with coating
PublikacjaWe discuss the propagation of transverse surface waves that are so-called whispering-gallery waves along a surface of an elastic cylinder with coating. The coating is modelled in the framework of linearized Gurtin–Murdoch surface elasticity. Other interpretations of the surface shear modulus are given and relations to so-called stiff interface and stiff skin model are discussed. The dispersion relations are obtained and analyzed.
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Design of metamaterials: Preface
PublikacjaThis special issue “Design of metamaterials” collects several papers that have presented theoretical, numerical, and experimental studies of metamaterials.
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On effective surface elastic moduli for microstructured strongly anisotropic coatings
PublikacjaThe determination of surface elastic moduli is discussed in the context of a recently proposed strongly anisotropic surface elasticity model. The aim of the model was to describe deformations of solids with thin elastic coatings associated with so-called hyperbolic metasurfaces. These metasurfaces can exhibit a quite unusual behaviour and concurrently a very promising wave propagation behaviour. In the model of strongly anisotropic...
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Electrochemical cell impedance spectra at Eoc+100mV
Dane BadawczeThe dataset presents impedance spectrum of electrochemical cell filled with 3% NaCl solution presented in the figure below. This cell was used measured using Atlas-Sollich 0531 impedance analyser with built-in potentiostat. When changing the DC polarisation of the cell the non-linear phenomena could be observed. The impedance spectrum frequency range...
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Electrochemical cell impedance spectra at Eoc+200mV
Dane BadawczeThe dataset presents impedance spectrum of electrochemical cell filled with 3% NaCl solution presented in the figure below. This cell was used measured using Atlas-Sollich 0531 impedance analyser with built-in potentiostat. When changing the DC polarisation of the cell the non-linear phenomena could be observed. The impedance spectrum frequency range...
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Electrochemical cell impedance spectra at Eoc-100mV
Dane BadawczeThe dataset presents impedance spectrum of electrochemical cell filled with 3% NaCl solution presented in the figure below. This cell was used measured using Atlas-Sollich 0531 impedance analyser with built-in potentiostat. When changing the DC polarisation of the cell the non-linear phenomena could be observed. The impedance spectrum frequency range...
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Electrochemical cell impedance spectra at Eoc
Dane BadawczeThe dataset presents impedance spectrum of electrochemical cell filled with 3% NaCl solution presented in the figure below. This cell was used measured using Atlas-Sollich 0531 impedance analyser with built-in potentiostat. When changing the DC polarisation of the cell the non-linear phenomena could be observed. The impedance spectrum frequency range...
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Electrochemical cell impedance spectra at Eoc-200mV
Dane BadawczeThe dataset presents impedance spectrum of electrochemical cell filled with 3% NaCl solution presented in the figure below. This cell was used measured using Atlas-Sollich 0531 impedance analyser with built-in potentiostat. When changing the DC polarisation of the cell the non-linear phenomena could be observed. The impedance spectrum frequency range...
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Modelowanie perfuzji mózgu w badaniach MRI.
PublikacjaPraca dotyczy dynamicznego badania mózgu z wykorzystaniem techniki MRI (badanie perfuzji). W rezultacie pomiarów, tj. czasowej sekwencji skanów MRI w odpowiedzi na podanie znacznika zmieniajšcego właciwoci magnetyczne tkanek, wyznaczony zostaje model procesu perfuzji. Dla badanego procesu perfuzji opracowano model nieparametryczny (odpowied aproksymowana niezupełnš funkcjš gamma o 3 parametrach) oraz dwukompartmentowy model...
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Badania NMR oligo(alkileno-estro-etero)dioli monomerów do syntezy elastomerów uretanowych.
PublikacjaPrzedstawiono wyniki badań NMR uzyskane dla oligo(alkileno-estro-etero)dioli otrzymanych w wyniku polikondensacji kwasu adypinowego z mieszaniną glikolu etylenowego i alfa- i gama-dihydroksy-oligooksypropylenu o Mn=450g/ml.
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Functional Bi2O3/Gd2O3 Silica-Coated Structures for Improvement of Early Age and Radiation Shielding Performance of Cement Pastes
PublikacjaThis study presents a new approach towards the production of sol-gel silica-coated Bi2O3/Gd2O3 cement additives towards the improvement of early mechanical performance and radiation attenuation. Two types of silica coatings, which varied in synthesis method and morphology, were used to coat Bi2O3/Gd2O3 structures and evaluated...
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Nowa metoda diagnostyki stanu technicznego nakładek stykowych
PublikacjaThe current collection system, which consists of the overhead contact line and a current collector, is particularly important in electric rail vehicles, where their reliability is concerned. Faultless current collection is conditioned not only by suitable construction of these elements but also by their proper maintenance. Retaining permanent electrical contact is essential in DC systems, where current demand is relatively high. In...
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Obróbka graficzna obrazu w nowoczesnych systemach diagnostyki sieci trakcyjnej jezdnej
PublikacjaW artykule autorzy przedstawiają założenia nowej metody bezkontaktowego pomiaru położenia przewodów jezdnych sieci trakcyjnej, a także pokazują jakie znaczenie w tej metodzie ma komputerowa analiza obrazu pozyskiwanego z kamery. Problemem technik wizyjnych jest zmienność parametrów obrazu wejściowego (jasność, kontrast, zakres widma, krzywa gamma i in.), które są zależne od zmieniających się warunków oświetlenia zewnętrznego związanych...
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Quantum security and theory of decoherence
PublikacjaWe sketch a relation between two crucial, yet independent, fields in quantum information research, viz. quantum decoherence and quantum cryptography. We investigate here how the standard cryptographic assumption of shielded laboratory, stating that data generated by a secure quantum device remain private unless explicitly published, is disturbed by the einselection mechanism of quantum Darwinism explaining the measurement process...
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Parametric versus nonparametric modelling of dynamic susceptibility contrast enhanced MRI based data
PublikacjaDynamic tracking of a bolus of a paramagnetic agent (dynamic susceptibility contract - DSC) in MRI (magnetic resonance imaging) measurements is successfully used for assessment of the tissue perfusion and the other features and functions of the brain (i.e. cerebral blood flow - CBF, cerebral blood volume - CBV, mean transit time - MTT). The parametric and nonparametric approaches to the identification of MRI models are presented...
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Bilateral multi-issue negotiation of execution contexts by proactive document agents
PublikacjaA proactive document can react to its actual environment by autonomously selecting and performing actions integrated into its body and interact with its user. When migrating over a network of execution devices it may encounter diverse execution contexts, each one set up according to temporal characteristics of a receiving device and preferences of its owner. A concept to augment proactive documents with negotiation capability is...
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Ultrasound assisted dispersive solid phase microextraction using polystyrene-polyoleic acid graft copolymer for determination of Sb(III) in various bottled beverages by HGAAS
PublikacjaA new polyoleic acid-polystyrene (PoleS) block/graft copolymer was synthesized and applied as adsorbent for ultrasound assisted dispersive solid phase microextraction (UA-DSPME) of Sb(III) in different bottled beverages and analysis using hydride generation atomic absorption spectrometry (HGAAS). Adsorption capacity of the PoleS was 150 mg g−1. Several sample preparation parameters such as sorbent amount, solvent type, pH, sample...
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An air-assisted dispersive liquid phase microextraction method based on a hydrophobic magnetic deep eutectic solvent for the extraction and preconcentration of melamine from milk and milk-based products
PublikacjaIn the current research, a fast and sustainable air-assisted hydrophobic magnetic deep eutectic solvent-based dispersive liquid phase microextraction followed by UV–Vis spectrophotometry measurements was optimized for the extraction and determination of melamine in milk and milk-based products. The central composite design was applied for the optimization of factors affecting the recovery of melamine. Quantitative extraction of...
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Acral melanoma - Male, 69 - Tissue image [9200729571537901]
Dane BadawczeThis is the histopathological image of SKIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Acral melanoma - Male, 69 - Tissue image [9200729571538691]
Dane BadawczeThis is the histopathological image of SKIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Acral melanoma - Male, 69 - Tissue image [9200729571531811]
Dane BadawczeThis is the histopathological image of SKIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Acral melanoma - Male, 69 - Tissue image [9200729571533481]
Dane BadawczeThis is the histopathological image of SKIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Acral melanoma - Male, 69 - Tissue image [9200729571539741]
Dane BadawczeThis is the histopathological image of SKIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Microstructural aspects of corrosion of the SUPERSTON alloy after laser treatment
PublikacjaW artykule przedstawiono rezultaty obróbki laserowej stopu SUPERSTON w warunkach kriogenicznych i jej wpływ na mikrostrukturę i odporność korozyjną. Badania korozyjne zostały zrealizowane metodą potencjostatyczną w 3% NaCl, odporność korozyjna stopu zmieniała się wraz ze zmianą parametrów nadtapiania laserowego.
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Electrostatic interface recombination in the system of disordered materials characterized by different permittivities
PublikacjaWe report on the analysis of an electrostatic interface recombination in a system consisting of disordered organic materials. This process is a consequence of the polarization effect which takes place at the interface of two phases characterized by different permittivities. In this paper, the impact of tail and deep localized states on the recombination order is demonstrated. We also discuss the influence of temperature on this...
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Paweł Możejko dr hab.
Osoby -
Naprężeniowe pękanie korozyjne złączy spawanych nowego stopu Al-Mg ALUSTAR
PublikacjaWykonano pomiary wytrzymałości na rozciąganie, wydłużenia, czasu do zniszczenia, przewężenia i energii zniszczenia stopu rozciąganego z małą szybkością w powietrzu i 3,5 roztworze NaCl. Oceniono podatność złączy spawanych na korozję naprężeniową oraz możliwość zastosowania stopu ALUSTAR w budowie jednostek pływających.
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Charakterystyka korozyjna stopów miedzi stosowanych na śruby okrętowe po obróbce laserowej w warunkach kriogenicznych
PublikacjaW artykule przedstwiono wpływ nadtapiania laserowego w warunkach kriogenicznych na właściwości korozyjne stopów MM55 i SUPERSTON, stosowanych na śruby okrętowe. Uzyskane wyniki potwierdzają możliwość rozdrobnienia mikrostruktury w warstwie nadtopionej oraz znaczącego podwyższenia właściwości korozyjnych badanych stopów w środowisku 3%NaCl.