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Search results for: n-alkilowanie
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The interference between electrode and poly(ethylene oxide) electrolytes
PublicationSpektroskopia impedancyjna zastosowana została do scharakteryzowania granicy faz elektroda-elektrolit poli(oksyetylenowy) zawierający sole litu. Udział rozpuszczalnika w pojemności wewnętrznej warstwy, Cs(σ), dla CH3(OCH2CH2 )nOCH3 DLA N=4,8,10 oraz dla PMEO [(CH2CH2O)mCH2O]m m=5-10 został wyznaczony z wartości pojemności warstwy sztywnej pomniejszonej o udział metalu CM. Wyznaczono wartość pojemności dipolowej Ci(dip) dla PEO...
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Video data recorded on S7 road
Open Research DataThe set consists of video data recorded employing camera LevelOne FCS-5102. The purpose of the experiment was to gather vehicle traffic recordings in real conditions – on the S7 motorway, near Dworek village (54°14'40.0"N 18°59'59.0"E).
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Emotions in polish speech recordings
Open Research DataThe data set presents emotions recorded in sound files that are expressions of Polish speech. Statements were made by people aged 21-23, young voices of 5 men. Each person said the following words / nie – no, oddaj - give back, podaj – pass, stop - stop, tak - yes, trzymaj -hold / five times representing a specific emotion - one of three - anger (a),...
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Overproduction of CaMet15p native and His-tag versions.
Open Research DataEnzyme of fungal L-methionine biosynthetic pathway: O-acetylhomoserine sulfhydrylase (Met15p) could be exploited as molecular target for antifungal chemotherapy. The goal of the study was to obtain conditions optimal for protein production with the use of prokaryotic cells. The constructed expression plasmids, designed in three different versions: encoding...
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Overproduction of homoserine O-acetyltransferase (CaMet2p) native and His-tag versions.
Open Research DataEnzyme of fungal L-methionine biosynthetic pathway: homoserine O-acetyltransferase (Met2p) could be exploited as molecular target for antifungal chemotherapy. The goal of the study was to obtain conditions optimal for protein production with the use of prokaryotic cells. The constructed expression plasmids, designed in three different versions: encoding...
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Graphene oxide thin films deposited on a PCB board - chemical analysis
Open Research DataGraphene oxides based films were measured by X-ray photoemission spectroscopy (XPS) method. TheXPS measurements were carried out with the Omicron NanoTechnology UHV equipment. The hemispherical spectrophotometer was equipped with a 128-channel collector. The XPS measurements were performed at room temperature at a pressure below 1.1 × 10−8 mBar. The...
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Silicon microcantilever with impedance sensor
Open Research DataThe issue of microelectromechanical systems (MEMS) [1] has been enjoying popularity and interest since the 90s of the 20th century. Microcells are one of the simplest devices of this type, but they can be widely used in sensors. There are reports on the possibility of using this type of sensors in the context of such important issues as diagnostics...
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One-Step Synthesis of b-Lactams with Retro-Amide Side Chain
PublicationAbstract: A one pot synthesis for preparation of 1,4-disubstituted-2-oxo-azetidine-3-carboxylic acid amides was developed. 5-(α-N-substituted-amino-α'-hydroxy)methylene Meldrum's acids act as a source of ketenes that react with aldimines in boiling toluene to give b-lactams with retro-amid side chain.
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Bromidotetrakis(1H-2-ethyl-5-methylimidazole-κN3)copper(II) bromide
PublicationAtom Cu(II) w tytułowym kompleksie jest skoordynowany przez cztery atomy N obojętnych cząsteczek imidazolu oraz jon bromkowy. Jon kompleksowy ma geometrię piramidy kwadratowej. Kationy kompleksowe w krysztale tworzą układ dipoli ułożonych ''głowa do ogona'' równolegle do osi c.
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Dicyclohexylammonium benzenethiolate. Acta Cryst. Sect. E Struct. Rep. [on-line]**2003 vol. 59 s. o765-o766, 2 rys. 2 tab. bibliogr. 11 poz. tiofenolan dicykloheksyloamoniowy.
PublicationZwiązek o wzorze C12H24N+ x C6H5S- został otrzymany poprzez reakcję tiofeno-lu z dicykloheksyloaminą. Oba fragmenty jonowe powiązane są w długie łańcu-chy poprzez wiązania N-H...S. Strukturę cząsteczkową i krystaliczną wyzna-czono posługując się rentgenowską analizą strukturalną.
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Cholesky factorization of matrices in parallel and ranking of graphs.
PublicationUporządkowane kolorowanie znajduje zastosowanie przy równoległej faktoryzacji macierzy metodą Cholesky'ego. Praca zawiera opis tego zastosowania. Podano także algorytmy optymalnego uporządkowanego kolorowania krawędzi pewnych klas grafów: grafów pełnych dwudzielnych oraz powstałych z pełnych dwudzielnych przez usunięcie O(log n) krawędzi.
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Efficiency and kinetices of coupled transport of copper Ions Through Liquid Membranes Containing Technical Hydroxyoxime Carries
PublicationBadano wpływ różnych parametrów (składu faz wodnych, stężenia przenosnika, rozpuszczalnika organicznego na kinektykę i wydajność transportu jonów miedzi. Dużą wydajność procesu mozna otrzymać uzywając około 10 x mniejszego stężenia przenosanika w n-oktanie niż w przypadku innych rozpuszczalników technicznych.
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Justyna Chanaj-Kaczmarek dr n. farm.
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Grzegorz Wyrobiec Dr n. med.
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Exploring of electronic structure of nitrogen-modified TiO2 photocatalysts through photocurrent and surface photovoltage studies
PublicationPrzeprowadzono pomiary fotonapięcia powierzchniowego i fotoprądu w obecności różnych reduktorów celem otrzymania eksperymentalnego potwierdzenia położenia pasma walencyjnego w strukturze elektronowej tlenku tytanu(IV) modyfikowanego azotem. Zaobserwowano silne sprzężenie poziomów N 2p i O 2p, którego konsekwencją jest powstanie nowego pasma walencyjnego
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Synthesis of new conjugates of MDP and nor-MDP with retro-tuftsin derivatives as potential immunomodulators
PublicationZsyntetyzowano nowe analogi muramylodipeptydu (MDP) i nor-muramylo-dipeptydu (nor-MDP) z pochodnymi retro-tuftsyny jako potencjalne immunomodulatory. Przedstawiono także syntezę odpowiednich pochodnych retro-tuftsyny. Do syntezy wykorzystano metodę mieszanych bezwodników z chloromrówczanem izobutylu i N-metylomorfoliną w bezwodnym DMF.
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The effect of temperature difference on heat transport in solar cells
PublicationW pracy omówiono wpływ wzrostu temperatury i mechanizm transportu ciepła na drodze przewodzenia w układach hybrydowych PV/T. Wyznaczono współczynniki przewodzenia krystalicznego krzemu typu n i p oraz gęstość strumienia ciepła w zakresie temperatur od 0 do 100 st. C.
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2021/41/N/HS6/01312 Longitudinal studies on prosocial tendencies during the late pandemic period: between own and others' welfare and present or future orientation
ProjectsProject realized in The Maria Grzegorzewska University according to UMO-2021/41/N/HS6/01312 agreement from 2022-01-13
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2021/41/N/ST2/00972 Developing a new direction for collider BSM searches with Machine Learning
ProjectsProject realized in University of Warsaw according to DEC-2021/41/N/ST2/00972 agreement from 2021-11-26
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Effect of exercise training on insulin sensitivity, mitochondria and computed tomography muscle attenuation in overweight women with and without polycystic ovary syndrome
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Effect of Hybrid Modulation on Performance of Wireless Battery Charger Operating in CC/CV Mode
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Chinifur, a Selective Inhibitor and "Subversive Substrate" for Trypanosoma congolense Trypanothione Reductase
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Recognition of two-phase flow patterns with the use of dynamic image analysis
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Energy shifts of K- and L-lines as spectroscopic diagnostic of Z-pinch plasmas
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Modeling of the M X-ray line structures for tungsten and L X-ray line structures for molybdenum
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Classification of Covid-19 using Differential Evolution Chaotic Whale Optimization based Convolutional Neural Network
PublicationCOVID-19, also known as the Coronavirus disease-2019, is an transferrable disease that spreads rapidly, affecting countless individuals and leading to fatalities in this worldwide pandemic. The precise and swift detection of COVID-19 plays a crucial role in managing the pandemic's dissemination. Additionally, it is necessary to recognize COVID-19 quickly and accurately by investigating chest x-ray images. This paper proposed a...
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Cascade Object Detection and Remote Sensing Object Detection Method Based on Trainable Activation Function
PublicationObject detection is an important process in surveillance system to locate objects and it is considered as major application in computer vision. The Convolution Neural Network (CNN) based models have been developed by many researchers for object detection to achieve higher performance. However, existing models have some limitations such as overfitting problem and lower efficiency in small object detection. Object detection in remote...
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Denitrification Process Enhancement and Diversity of the Denitrifying Community in the Full Scale Activated Sludge System after Adaptation to Fusel Oil
PublicationImplementation of anaerobic digestion of primary sludge in modern wastewater treatment plants (WWTPs) limits the availability of organic carbon for denitrification in conventional nitrification-denitrification (N/DN) systems. In order to ensure efficient denitrification, dosage of the external carbon source is commonly undertaken. However, application of commercial products, such us ethanol or acetate, greatly increases operational...
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Multi-agent graph searching and exploration algorithms
PublicationA team of mobile entities, which we refer to as agents or searchers interchangeably, starting from homebases needs to complete a given task in a graph.The goal is to build a strategy, which allows agents to accomplish their task. We analyze strategies for their effectiveness (e.g., the number of used agents, the total number of performed moves by the agents or the completion time).Currently, the fields of on-line (i.e., agents...
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Concrete temperature measurements of cubic specimens cured under isothermal and semi-adiabatic conditions
Open Research DataThe DataSet contains temperature measurements of concrete cubes (150 x 150 x 150 mm) cured under isothermal and semi-adiabatic conditions. The specimens were moulded from six types of concrete mixtures produced in the laboratory conditions. Mix #1: Portland cement CEM I 42.5R and gravel aggregate, mix #2: CEM I 42.5R and basalt aggregate, mix#3: Portland-composite...
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The detection of capsaicin and dihydrocapsaicin in horse serum following long-term local administration
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Expression profiles and genomic organisation of group A protein phosphatase 2C genes inBrassica oleracea
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pH-tunable equilibria in azocrown ethers with histidine moieties
PublicationEtery koronowe posiadające elektro- i fotoaktywne reszty azowe oraz ugrupowania z ruchliwymi protonami jak w grupie COOH histydyny charakteryzują się unikalnym, zależnym od pH, efektem stymulowania pozornej obecności/nieobecności ugrupowania azowego. Obserwowane różnice właściwości elektrochemicznych eterów azokoronowych z resztą N-acetylohistydyny lub resztami imidazolu uwidaczniają się przebiegiem chemicznej redukcji w silnie...
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Przydatność białka rybiego w postaci kolagenu lub żelatyny oraz polisacharydu - kapa-karagenu do wytwarzania aktywnych opakowań biodegradowalnych = Usefulness of fish collagen, gelatin and carrageenan for preparation of active biodegradable packages
PublicationSummary - The possibility of use of protein films made of fish collagen or gelatin as well as polysaccharide carrageenan films as carriers of enzymes (lysozyme or lysostaphyne), for preparation of microbiologically active packages, was investigated. It was found that crosslinking of such systems with N-[3(dimethylamino)propyl]-N'-ethylcarboimide (EDC) does not influence the activity of lysozyme immobilized in the films (Table 1)....
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Direct-Ultrasonic Assisted Microextraction Coupled with RTL-GC-FID/GC-MS as a Future Standard Procedure for Monitoring 26 potentially Allergenic Fragrances in Water Samples
PublicationThis research topic grew up as a result of awareness of constant anthropogenic and natural input to the environment constituents of personal care products (PCPs) residues. This group of emerging pollutants encompasses a wide range of chemicals, including potentially allergenic fragrance compounds. The aim of the present study was to investigate presence of 26 fragrance allergens in water samples. Simple and rapid methodology based...
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A universal method for the identification of genes encoding amatoxins and phallotoxins in poisonous mushrooms
PublicationABSTRACT Background. As the currently known diagnostic DNA targets amplified in the PCR assays for detection of poisonous mushrooms have their counterparts in edible species, there is a need to design PCR primers specific to the genes encoding amanitins and phallotoxins, which occur only in poisonous mushrooms. Objective. The aim of the study was testing of PCR-based method for detection of all genes encoding hepatotoxic cyclic...
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A facile method for Tauc exponent and corresponding electronic transitions determination in semiconductors directly from UV–Vis spectroscopy data
PublicationIn this work, a facile method allowing for estimation of the exponent in the Tauc equation directly from the UV–vis spectra is presented. It is based on the Taylor expansion of the logarithmic version of the Tauc equation. The Tauc exponent is calculated from the tangent slope of the absorption data. Knowledge of this coefficient provides information about the optical transition types and is used as an input for the calculations...
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Hydration of Simple Model Peptides in Aqueous Osmolyte Solutions
PublicationThe biology and chemistry of proteins and peptides are inextricably linked with water as the solvent. The reason for the high stability of some proteins or uncontrolled aggregation of others may be hidden in the properties of their hydration water. In this study, we investigated the effect of stabilizing osmolyte–TMAO (trimethylamine N-oxide) and destabilizing osmolyte–urea on hydration shells of two short peptides, NAGMA (N-acetyl-glycine-methylamide)...
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Fragmentation of Tetrahydrofuran Molecules by H+, C+, and O+ Collisions at the Incident Energy Range of 25–1000 eV
PublicationWe have studied fragmentation processes of the gas-phase tetrahydrofuran (THF) molecules in collisions with the H+, C+, and O+ cations. The collision energies have been varied between 25 and 1000 eV and thus covered a velocity range from 10 to 440 km/s. The following excited neutral fragments of THF have been observed: the atomic hydrogen H(n), n = 4–9, carbon atoms in the 2p3s 1P1, 2p4p 1D2, and 2p4p 3P states and vibrationally...
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Modelization of Nutrient Removal Processes at a Large WWTP Using a Modified ASM2d Model
PublicationThe biodegradation of particulate substrates starts by a hydrolytic stage. Hydrolysis is a slow reaction and usually becomes the rate limiting step of the organic substrates biodegradation. The objective of this work was to evaluate a novel hydrolysis concept based on a modification of the activated sludge model (ASM2d) and to compare it with the original ASM2d model. The hydrolysis concept was developed in order to accurately...
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Deodorization of model biogas by means of novel non-ionic deep eutectic solvent
PublicationThe paper presents new non-ionic deep eutectic solvent (DES) composed of natural and non-toxic components i.e. guaiacol, camphor and levulinic acid in 1:1:3 molar ratio as a promising absorbent for removal of selected volatile organic compounds (VOCs) including dichloromethane, toluene, hexamethyldisiloxane and propionaldehyde from model biogas. The affi nity of DES for VOCs was determined as vapour-liquid coeffi cients and the...
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Asymmetric Renyi Problem and > PATRICIA Tries
PublicationIn 1960 R´enyi asked for the number of random queries necessary to recover a hidden bijective labeling of n distinct objects. In each query one selects a random subset of labels and asks, what is the set of objects that have theselabels? Weconsider here anasymmetric version of the problem in which in every query an object is chosenwith probability p > 1/2 and we ignore “inconclusive” queries. We study the number of queries needed...
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Kinetics of the Organic Compounds and Ammonium Nitrogen Electrochemical Oxidation in Landfill Leachates at Boron-Doped Diamond Anodes
PublicationElectrochemical oxidation (EO) of organic compounds and ammonium in the complex matrix of landfill leachates (LLs) was investigated using three different boron-doped diamond electrodes produced on silicon substrate (BDD/Si)(levels of boron doping [B]/[C] = 500, 10,000, and 15,000 ppm—0.5 k; 10 k, and 15 k, respectively) during 8-h tests. The LLs were collected from an old landfill in the Pomerania region (Northern Poland) and were...
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Combined partial denitrification/anammox process for nitrogen removal in wastewater treatment
PublicationRecently, the combined partial denitrification and anammox (PD/anammox) has received special attention as a viable alternative for N removal using organic matter present in municipal wastewater. In comparison with conventional nitrification-denitrification, PD/anammox provides enormous opportunities to achieve sustainable wastewater treatment due to the lack of dissolved oxygen (DO) demand, a smaller amount of organic carbon (C)...
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Tensile and Fatigue Behavior of Additive Manufactured Polylactide
PublicationThis article presents the results of monotonic tensile and fatigue tests conducted on commercial polylactide or polylactic acid (PLA). The results of fatigue tests for this material present in the literature are limited, especially for additive manufactured elements. The specimens were manufactured using the injection molding and the fused filament fabrication (FFF) method. The FFF specimens were divided into five subgroups, depending...
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Essential Oils, Silver Nanoparticles and Propolis as Alternative Agents Against Fluconazole Resistant Candida albicans, Candida glabrata and Candida krusei Clinical Isolates
PublicationDevelopment of effective and safe therapeutic treatment of fungal infections remains one of the major challenge for modern medicine. The aim of presented investigation was to analyze the in vitro antifungal activity of selected essential oils, ethanolic extracts of propolis and silver nanoparticles dropped on TiO2 against azole-resistant C. albicans (n = 20), C. glabrata (n = 14) and C. krusei (n = 10) clinical isolates. Among...
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A note on mixed tree coloring
PublicationZaproponowano liniowy algorytm dla problemu kolorowania mieszanego w drzewach, uzyskując tym samym poprawę w stosunku do algorytmu o złożoności O(n^2) podanego w pracy [P. Hansen, J. Kuplinsky, D. de Werra, Mixed graph colorings, Math. Methods Oper. Res. 45 (1997) 145-160].
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Sharp bounds for the complexity of semi-equitable coloring of cubic and subcubic graphs
PublicationIn this paper we consider the complexity of semi-equitable k-coloring of the vertices of a cubic or subcubic graph. We show that, given n-vertex subcubic graph G, a semi-equitable k-coloring of G is NP-hard if s >= 7n/20 and polynomially solvable if s <= 7n/21, where s is the size of maximum color class of the coloring.
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Influence of surfactants on interaction forces between polyethylene surfaces in a hydrocarbon solvent.
PublicationPrzeprowadzono bezpośrednie pomiary oddziaływań międzyfazowych pomiędzy cząstkami polietylenowymi w środowisku n-tetradekanu z dodatkiem surfaktantów(kwasu larynowego i dodecyloaminy). Dodatek surfaktantów wpłynął na wzrost oddziaływań odpychających pomiędzy powierzchniami polietylenowymi, szczególnie w przypadku dodecyloaminy. Zaobserwowano obecność wzrostu sferycznych sił odpychających ze wzrostem temperatury.
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Abnormal cytological findings - Female, 37 - Cell image [4130730006612781]
Open Research DataThis is the histopathological image of CERVIX UTERI cell 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.