Filters
total: 3539
filtered: 2531
-
Catalog
- Publications 2531 available results
- Journals 34 available results
- Conferences 9 available results
- Publishing Houses 6 available results
- People 100 available results
- Inventions 3 available results
- Projects 9 available results
- Laboratories 1 available results
- Research Teams 4 available results
- e-Learning Courses 93 available results
- Events 13 available results
- Open Research Data 736 available results
Chosen catalog filters
displaying 1000 best results Help
Search results for: NITRO GROUP
-
In Vitro Dissolution of Na-Ca-P-Oxynitrides
Publication: Sodium-calcium-phosphate based oxynitride glasses and glass-ceramics doped with Mg, Si, and Nb were studied in vitro in simulated body fluid (SBF) under static conditions. The release of ions and pH changes up to 7 days of immersion were investigated. The nitrogen incorporation into phosphate glass matrix was found to notably influence in vitro dissolution only of homogenous glasses. Increasing the nitrogen content in the samples...
-
Comparative in vitro research of the Human Aortic Bioprosthesis
PublicationE valuate of the usefulness and reliability of structures based on the analysis of recorded parameters determining the flow through the Human Aortic Bioprosthesis (HAB) have been dealt with. By flow parameters changes determining the performance environment of prosthesis analyzed change of the motion dynamics of the valve leaflets as a function of pressure, thereby determining the degree of alignment of the prosthesis to the performance...
-
Degradation of implantable materials – in vivo and in vitro research
PublicationThe article concerns the biological and electrochemical degradation of metallic implants in vivo and in vitro studies. The in vivo research dealt with degradation of plates used to join bones, as well as endoprostheses. The most common damages were: metalosis, breaking in the microstructure changes, breaking in area of holes, as well as plastic deformation throughout the length of an implant. The material used for the research...
-
(R,R)-1-Acetyl-1'-(2,4,6-trinitrophenyl)-2,2'-bipyrrolidine
Publication(R,R)-1-Acetyl-1'-(2,4,6-trinitrophenyl)-2,2'-bipyrrolidine has been synthesized and its rentgenostructure has been determined. The structure of the title molecule, C16H19N5O7, is mainly determined by the steric effect of a bulky 2,4,6-trinitrophenyl group attached to the N atom of a pyrrolidine ring. Both pyrrolidine rings adopt an envelope conformation, with one of the methylene C atoms as the flap in each case, and the N-C-C-N...
-
Modified polycarbonate urethane: synthesis, properties and biological investigation in vitro
PublicationNowy poliweglano uretan (PCU-I) otrzymano z alifatycznych monomerów: poliwęglanu heksanodiolu, 4,4'diizocyjanianu dicykloheksanometanu, mieszaniny małocząsteczkowych dioli i oleju rycynowego (zawierającego głównie trigliceryd kwasu 12-hydroksyoleinowego). PCU-II otrzymano analogicznie ale bez udziału oleju rycynowego. Obydwa PCU charakteryzowały się dobrą wytrzymałością na rozciąganie. PCU-I miał niższą temperaturę zeszklenia a...
-
Influence of substituents in vinyl groups on reactivity of parylene during polymerization process
PublicationPraca zawiera wyniki obliczeń kwantowych wielokonfiguracyjnych i DFT mechanizmów reakcji parylenu i cząsteczek z wiązaniami podwójnymi w fazie gazowej. Zbadany został i zanalizowany wpływ podstawników w strukturach alkenów na reaktywność parylenu i alkenów.
-
The Effect of Aromatic Diimide Side Groups on the π-Conjugated Polymer Properties
Publication -
Stable anions formed by organic molecules substituted with superhalogen functional groups
Publication -
Novel investigation of pyrolysis mechanisms and kinetics for functional groups in biomass matrix
Publication -
Position and Orientation Estimation in Radio Network With Groups of Locally Synchronized Nodes
PublicationThis article presents a positioning system with groups of locally synchronized nodes. A mobile object is equipped with a group of several synchronized receivers that are able to measure the difference in the time of arrival of signals from reference transmitters. The reference transmitters are synchronized only in local groups, with no global synchronization between groups. It is assumed that the synchronous operation of transmitters...
-
Determination of Hydroxy Groups in the Modified Epoxy Oligomers Using IR-Spectroscopy
PublicationThe use of IR-spectroscopy has been proposed to determine the content of hydroxy groups in the modified functional oligomers based on bisphenol A diglycidyl ether. Apart from hydroxy groups the investigated oligomers contain epoxy or peroxy, carboxy or acrylic groups.
-
Guided ultrasonic waves for detection of debonding in bars partially embedded in grout
PublicationThis paper deals with theoretical, numerical and experimental investigations of guided wave propagation in multilayered cylindrical bars with pre-existing debonding. The research focuses on a complex description of the nature of the wave phenomena occurring in a debonded specimen with a special emphasis on the influence of the location of damage on the wave conversion and diffraction. Experimental non-destructive and destructive...
-
Research on the Relationship between CO2 Emissions, Road Transport, Economic Growth and Energy Consumption on the Example of the Visegrad Group Countries
Publication -
Epidemiology, diagnosis, and prevention of tick-borne encephalitis in Poland and selected european countries – a position statement of the polish group of experts
Publication -
Cations of amino acid alkyl esters conjugated with an anion from the group of NSAIDs – As tunable pharmaceutical active ionic liquids
Publication -
Separation and determination of the group-type composition of modern base and lubricating oils with a wide range of polarity, especially emitted to the environment
PublicationLubricating oils are composed of base oils (>85% v/v) and enriching additives (<15% v/v). Three types of base oils may be distinguished: 1) traditional bases (obtained by low-volatile fractions from crude oil distillation refining), 2) synthetic bases (mainly poly-alpha-olefins, sometimes esters, especially succinic acid esters), 3) bases of natural origin (especially obtained from refined plant oils). The bases of natural origin...
-
Dispersive Delay Structures With Asymmetric Arbitrary Group-Delay Response Using Coupled-Resonator Networks With Frequency-Variant Couplings
PublicationThis article reports the design of coupled-resonatorbased microwave dispersive delay structures (DDSs) with arbitrary asymmetric-type group delay response. The design process exploits a coupling matrix representation of the DDS circuit as a network of resonators with frequency-variant couplings (FVCs). The group delay response is shaped using complex transmission zeros (TZs) created by dispersive cross-couplings. We also present an...
-
Molecular structures and supramolecular architectures of two chromogenic 13-membered azobenzocrown ethers with a peripheral hydroxyl group in the benzene ring.
PublicationOkreślono strukturę krystaliczną dwóch pochodnych 13-członowego eteru azobenzokoronowego z peryferyjną grupą hydroksylową, metodą analizy rentgenostrukturalnej monokryształów. W stanie stałym 13-członowy eter azobenzokoronowy zawierający grupę OH jako podstawnik w pierścieniu aromatycznym w pozycji para do grupy azowej występuje w formie chinono-hydrazonu. Forma ta stabilizowana jest przez silne wewnątrzcząsteczkowe wiązanie wodorowe....
-
Carbon-encapsulated iron nanoparticles with deposited Pd: A high-performance catalyst for hydrogenation of nitro compounds
Publication -
Synthesis and biological activity of novel mycophenolic acid conjugates containing nitro-acridine/acridone derivatives
PublicationOpracowano warunki reakcji kwasu mykofenolowego z aminowymi pochodnymi akrydyn i akrydonów. Tak otrzymane koniugaty zostały scharakteryzowane, a następnie przebadane in vitro pod względem aktywności przeciwbiałaczkowej oraz immunosupresyjnej.
-
Możliwości współpracy zawodowej pracowników z różnych grup wiekowych
PublicationW artykule podjęto problematykę możliwości i uwarunkowań współpracy osób młodych z pracownikami w wieku 55+ i transferu wiedzy w zespołach zróżnicowanych wiekowo. Autorzy posłużyli się wynikami badań zrealizowanych na grupie 117 studentów Wydziału Zarządzania i Ekonomii Politechniki Gdańskiej.
-
Osiadanie dużych grup palowych, obliczenia i pomiary terenowe.
PublicationPrzedstawiono charakterystykę nowoczesnej metody obliczania osiadań grup palowych. Wyniki obliczeń porównano z wynikami pomiarów geodezyjnych osiadań dla 4 obiektów, odpowiednio dla 50, 83, 264 oraz 437 sztuk pali
-
In Vitro Measurement of Conformational Stability of Fibrinogen Adsorbed on Siloxane
Publication -
In-vitro controlled release of doxorubicin from silica xerogels
Publication -
Impact of isoflavone genistein on psoriasis in in vivo and in vitro investigations
Publication -
Potential applications of plant in vitro cultures in phytoremediation studies
Publication -
The effectiveness of chemotherapy and electrochemotherapy on ovarian cell lines in vitro
Publication -
In Vitro Biological Evaluation of Aprepitant Based 177Lu-Radioconjugates
Publication -
In vitro anticariogenic effects of polyphenolics from Potentilla recta
Publication -
INFOGEST static in vitro simulation of gastrointestinal food digestion
PublicationDeveloping a mechanistic understanding of the impact of food structure and composition on human health has increasingly involved simulating digestion in the upper gastrointestinal tract. These simulations have used a wide range of different conditions that often have very little physiological relevance, and this impedes the meaningful comparison of results. The standardized protocol presented here is based on an international consensus...
-
Application of human bile salts for in vitro digestion models
PublicationIn this study, experimental in vitro models simulating the environment of the human gastrointestinal tract were used to assess the impact of physiological surfactants, such as bile salts, on the kinetics of digestion. Bile salts are biosurfactants synthesised in the liver and secreted together with bile into the small intestine. There are many reports on the role of bile salts in lipolysis, but the knowledge of their influence...
-
Bile conjugation and its effect on in vitro lipolysis of emulsions
PublicationBile Salts (BS) are responsible for stimulating lipid digestion in our organism. Gut microbiota are responsible for the deconjugation process of primary conjugated to secondary unconjugated BS. We use two structurally distinct BS and characterize the rate of lipolysis as a compound parameter. A static in-vitro digestion model as well as meta-analysis of literature data has been performed to determine the most influential factors...
-
Nanocrystallization as a tool for controlling in vitro dissolution of borophosphate glass
PublicationThe controlled nanocrystallization of sodium-calcium-borophosphate glass (Na16.6Ca5.1B10.5Al0.8P10.5 O56.5 in at %) was conducted to investigate its influence on in vitro dissolution. Three temperatures (570 ◦C, 590 ◦C, and 610 ◦C) were selected based on thermal analysis and investigation of the morphology, structure, and in vitro dissolution of glass and glass-ceramics was conducted. The results of X-ray diffraction confirmed...
-
In vitro evaluation of novel lipopeptides with potential therapeutic application
PublicationThe synthesis of derivatives of Gly-His-Lys was elaborated followed by their antimicrobial activity investigation.
-
Antibacterial activity of the secondary metabolites from in vitro cultures of Drosera aliciae
PublicationRośliny owadożerne (D. aliciae) metabolity wtórne farmakologicznie czynne substancje. Na wzrost akumulacji tychże substancji w tkankach roślin owadożernych ma wpływ dodatek elicytora. Końcowego oznaczenia zawartości metabolitów w ekstraktach roślinnych dokonano techniką chromatografii cieczowej.
-
Approach to a child with Multisystem Inflammatory Syndrome associated with COVID19. Recommendations by the Polish Paediatric Society Expert Group. Update – February 2021
Publication -
Minun seikkailuni Turun Kiikurit Laulu- ja Tanssiyhtyeen kanssa… [My adventure with the folk group of song and dance Turun Kiikurit…]
Publication -
European Society of Hypertension Working Group on Obesity Obesity-induced hypertension and target organ damage: current knowledge and future directions
Publication -
Single nucleotide polymorphisms in A4GALT spur extra products of the human Gb3/CD77 synthase and underlie the P1PK blood group system
Publication -
Tackling Air Pollution in Cities with Modelling and Simulation: Remote Group Model Building as an Educational Tool Supporting System Dynamics Modelling
Publication -
Moving out of CF3‐Land: Synthesis, Receptor Affinity, and in silico Studies of NK1 Receptor Ligands Containing a Pentafluorosulfanyl (SF5) Group
Publication -
Partycypacja obywatelska młodzieży w opinii gmin polskich na przykładzie projektu South Baltic Youth Core Group Network
PublicationCelem badań było ukazanie partycypacji obywatelskiej młodzieży w opinii gmin polskich na przykładzie projektu South Baltic Youth Core Group Network
-
Effect of admixtures on fresh grout and two-srtage (pre-placed aggregate) concrete
PublicationPrzedstawiono rezultaty badań doświadczalnych przeprowadzonych dla betonu uzyskanego metodą dwuetapową. Główną przeszkodą szerokiego zastosowania metody betonowania dwuetapowego Polcrete była niska wydajność urządzenia wytwarzającego mikrozaprawę - ultramiksera (UM). Celem przeprowadzonych badań laboratoryjnych było dobranie odpowiednich dodatków i domieszek, które umożliwią wytworzenie mikrozaprawy o takich samych parametrach...
-
Cyanido-Bridged Clusters with Remote N-Oxide Groups for Branched Multimetallic Systems
Publication -
Hybrid materials comprising trimethylglycinamide groups: immobilization consequences for anion binding affinities
Publication -
Consumer Perceptions of Peanuts and Peanut Allergy: The EuroPrevall Results of Focus Groups in Poland
Publication -
X-ray and NMR structural studies of the series of porphyrazines with peripheral pyrrolyl groups
Publication -
Synthesis and characterization of periphery-functionalized porphyrazines containing mixed pyrrolyl and pyridylmethylamino groups
Publication -
Synthesis, characterization, photochemical properties and cytotoxicity of the novel porphyrazine functionalized with nitroimidazolylbutylsulfanyl groups
Publication -
The Comparison Between the Calculated and HPLC-Predicted Lipophilicity Parameters for Selected Groups of Drugs
Publication