Filters
total: 3167
filtered: 2341
-
Catalog
- Publications 2341 available results
- Journals 11 available results
- People 99 available results
- Inventions 1 available results
- Projects 12 available results
- Laboratories 1 available results
- Research Equipment 4 available results
- e-Learning Courses 52 available results
- Events 49 available results
- Open Research Data 597 available results
Chosen catalog filters
displaying 1000 best results Help
Search results for: NMR-RELAXATION
-
Air temperature and location of isobaric surfaces in relation to atmospheric circulation, based on radiosonde data from Legionowo, Poland
Publication -
Who cares for the environment? Pro-environmental and political opinions in relation to basic psychological needs. A person-centered approach
Publication -
Functioning and legal regulations of perpetual usufruct right in Poland in relation to similar rights in other countries of the European Union
Publication1 May 2004, Poland became part of the European Union, which main aim is the political, economic and social integration of democratic European countries as well as the construction of a common market ensuring of persons, goods, services and capital move freely. The Accession Treaty provides some transitional periods for the adjustment of the right of Member States to the EU regulations. Next year, 12 years after joining the EU,...
-
Influence of Ultrasound on the Characteristics of CaP Coatings Generated Via the Micro-arc Oxidation Process in Relation to Biomedical Engineering
PublicationOver the past decade, bone tissue engineering has been at the core of attention because of an increasing number of implant surgeries. The purpose of this study was to obtain coatings on titanium (Ti) implants with improved properties in terms of biomedical applications and to investigate the effect of ultrasound (US) on these properties during the micro-arc oxidation (MAO) process. The influence of various process parameters, such...
-
The (over)touristification of European historic cities: a relation between urban heritage and short-term rental market demand
PublicationIn this chapter, I wish to highlight the critical relationship between heritage management issues and building environment transformation. I argue that such a relationship is directly expressed through the tourism phenomenon, and it should be measured through the economic dimension of the short-term rental market, which introduces this rule of thumb: if there is a lack of demand, the brand of the city is weak; if there is too much...
-
Nutrient loss from three small-size watersheds in the southern Baltic Sea in relation to agricultural practices and policy
PublicationAgriculture is the major contributor of waterborne nutrient fluxes into the Baltic Sea, one of the world’s most eutrophication-sensitive areas. Poland, as a large, densely populated state ohf the Baltic Region, with dominating agricultural land use, largely contributes to riverborne loads of N and P. The aim of our study was to examine the input of nutrients from three small first-order agricultural watersheds (Bladzikowski Stream,...
-
Antipsychotic drug prescription sequence analysis in relation to death occurrence and cardiometabolic drug usage: A retrospective longitudinal study
PublicationThe potential role of antipsychotics in increasing cardiovascular risk of mortality is still debated. The aim of this study was to assess the death risk associated with sequences of first-generation antipsychotic (FGA) and second-generation antipsychotic (SGA) prescriptions, including clozapine and lithium, and drugs for cardiometabolic diseases. We conducted a retrospective longitudinal analysis involving 84,881 patients who received...
-
Conformational Studies of [11è12(CN4)]ScyII and [15è16(CN4)]ScyII? Two Scyliorhinin II Analogues by means of 2D NMR Spectroscopy and Theoretical Methods
Publication -
π-Indenyl substituted zirconium compounds containing terminal bonded phosphanylphosphido ligands [Ind2Zr(Cl){(Me3Si)P–PR2-κP1}]. Synthesis, X-ray analysis and NMR studies
Publication -
Zastosowanie techniki NIR w analizie jakościowej surowców kosmetycznych i farmaceutycznych
PublicationW ramach współpracy pomiedzy Katedrą Technologii Leków i Biochemii Wydziału Chemicznego PG, a zakładem produkcji kosmetyków i farmaceutyków Ziaja Ltd. podjęto prace badawcze nad opracowaniem nowych metod analitycznych stosując spektroskopię w bliskiej podczerwieni (NIR). Metoda ta wykorzystuje absorpcję promieniowania elektromagnetycznego w zakresie 12 000 - 4 000 cm-1 (780-2500 nm). Absorpcja w zakresie NIR pochodzi głównie nod...
-
Identyfikacja różnych źródeł zmienności widm w spektroskopii bliskiej podczerwieni (NIR)
PublicationSpektroskopia bliskiej podczerwieni (NIR) odgrywa coraz większą rolę w analizie ilościowej i jakościowej. Na intensywność oraz kształt widm ma jednak wpływ wiele czynników nieswoistych takich jak temperatura, wilgotność, grubość i własności optyczne próbki. Celem pracy jest wykazanie wpływu czynników poza strukturalnych na jakość widm.
-
Tissue Doppler indexes of left ventricular systolic function in relation to the pulsatile and steady components of blood pressure in a general population
Publication -
User Orientation Detection in Relation to Antenna Geometry in Ultra-Wideband Wireless Body Area Networks Using Deep Learning
PublicationIn this paper, the issue of detecting a user’s position in relation to the antenna geometry in ultra-wideband (UWB) off-body wireless body area network (WBAN) communication using deep learning methods is presented. To measure the impulse response of the channel, a measurement stand consisting of EVB1000 devices and DW1000 radio modules was developed and indoor static measurement scenarios were performed. It was proven that for...
-
Water Needs of the Ash-Leaved Maple (Acer negundo L.) at the Period Over Three Years after Reclamation in Different Regions of Poland
Publication -
C-1311 (Symadex), a potential anti-cancer drug, intercalates into DNA between A and G moieties. NMR-derived and MD-refined stereostructure of the d(GAGGCCTC) 2 :C-1311 complex
PublicationImidazoacridinone C-1311 (Symadex®) is an antitumor agent which has been recommended for Phase II clinical trials a few years ago. Previously, it was shown experimentally that during the initial stage of its action C-1311 forms stable intercalation complexes with DNA duplexes. Herein, a NMR-derived stereostructure of d(GAGGCCTC)2:C-1311 complex was reported. The ligand was found locating itself between A and G moieties, forming...
-
Isotope shift study in two visible lines: 500.6 nm and 520.3 nm of Pb I
Publication -
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.
-
Acid–Base Equilibrium and Self-Association in Relation to High Antitumor Activity of Selected Unsymmetrical Bisacridines Established by Extensive Chemometric Analysis
Publication -
Personality traits in relation to anxiety and depressive symptoms in people who have undergone short-term psychodynamic psychotherapy in daycare conditions
Publication -
Enhanced expression of the proline synthesis gene P5CSA in relation to seed osmopriming improvement of Brassica napus germination under salinity stress
Publication -
Assessment of potentially cutting GHG emissions from shipping in relation to energy consumption trends using Fuzzy Analytic Hierarchy Process
Publication -
Operating conditions-induced changes in product yield and characteristics during thermal-conversion of peanut shell to biochar in relation to economic analysis
Publication -
Relation of the polymorphism of cyp51A sequence and the susceptibility of Aspergillus fumigatus isolates to triazoles determined by commercial gradient test (Etest) and by reference methods
PublicationThe aim of this study was to evaluate the accuracy of commercial gradient test (Etest) in the detection of triazole resistant Aspergillus fumigatus isolates using reference microdilution methods and the analysis of sequences of the cyp 51A gene. The study was performed on twenty clinical isolates which were identified as Aspergillus fumigatus based on the DNA sequences of the ITS1-2 fragment of ribosomal DNA and the β-tubulin gene,...
-
A Dirac delta-type orthogonality relation for the on-the-cut generalized associated Legendre functions of the first kind with imaginary second upper indices
PublicationThe orthogonality relation for the on-the-cut generalized associated Legendre functions of the first kind with imaginary second upper indices is evaluated in a closed form. It is found to be proportional to a sum of two terms, both depending on the second upper indices and containing the Dirac delta distribution.
-
Acid–Base Equilibrium and Self-Association in Relation to High Antitumor Activity of Selected Unsymmetrical Bisacridines Established by Extensive Chemometric Analysis
PublicationUnsymmetrical bisacridines (UAs) represent a novel class of anticancer agents previously synthesized by our group. Our recent studies have demonstrated their high antitumor potential against multiple cancer cell lines and human tumor xenografts in nude mice. At the cellular level, these compounds affected 3D cancer spheroid growth and their cellular uptake was selectively modulated by quantum dots. UAs were shown to undergo metabolic...
-
Synthesis and antiproliferative activity of conjugates of adenosine with muramyl dipeptide and nor-muramyl dipeptide derivatives
PublicationWe synthesized a series of MDP(D,D) and nor-MDP(D,D) derivatives conjugated with adenosine through a spacer as potential immunosuppressants. New conjugates were evaluated on two leukemia cell lines (Jurkat and L1210) and PBMC from healthy donors.
-
Synthesis of conjugates of muramyl dipeptide and nor-muramyl dipeptide derivatives with adenosine as potential immunosuppressant
PublicationZaprezentowano syntezę koniugatów adenozyny z pochodnymi muramylo- i nor-muramylodipeptydów zawierających w części peptydowej D-aminokwasy (D-Ala, D-Val, D-Ser, D-Pro, D-2-ABA). Jako substrat zastosowano rybozyd 6-chloropuryny, który łączono poprzez 1,2-diaminoetan z odpowiednimi pochodnymi MDP lub nor-MDP w obecności EDCI i HOBt. Struktury otrzymanych związków zostały potwierdzone widmami 1H i 13C NMR (500 MHz), widmami MS oraz...
-
Profil kwasów tłuszczowych mleka pochodzącego od krów żywionych w systemie TMR
PublicationW pracy analizowano profil kwasów tłuszczowych (KT) mleka pochodzącego od krów żywionych w systemie TMR (Total Mixed Ratio) w cyklu rocznym, uwzględniając skład lipidów paszy. Pasze objętościowe(kiszonka z kukurydzy i sianokiszonka) były znaczącym źródłem PUFA, zwłaszcza pochodzące z roku 2009, a ich skarmianie rozpoczęto w okresie jesiennym. W składzie KT mleka z tego okresu stwierdzono znacznie większą zawartość: MUFA, CLA i...
-
Aqueous solutions of NMA, Na2HPO4 , and NaH2PO4 as models for interaction studies in phosphate–protein systems
PublicationPhosphate buffers are essential for many areas of studies. However, their influence on buffered systems is often ignored. The phosphate salts can interact with biologically important macromolecules (e.g. proteins) and stabilize or destabilize them. With our research, we want to answer question what kind of interactions, if any, occur between phosphate ions and a protein backbone model — N-methylacetamide (NMA). ATR-FTIR spectroscopy...
-
Interactions in Ternary Aqueous Solutions of NMA and Osmolytes—PARAFAC Decomposition of FTIR Spectra Series
PublicationIntermolecular interactions in aqueous solutions are crucial for virtually all processes in living cells. ATR-FTIR spectroscopy is a technique that allows changes caused by many types of such interactions to be registered; however, binary solutions are sometimes difficult to solve in these terms, while ternary solutions are even more difficult. Here, we present a method of data pretreatment that facilitates the use of the Parallel...
-
Estrogen Receptor Type 1 and Type 2 Presence in Paravertebral Skeletal Muscles: Expression Level and Relation to Phenotype in Children with Idiopathic Scoliosis
Publication -
Regional and sectoral assessment on climate-change in Pakistan: Social norms and indigenous perceptions on climate-change adaptation and mitigation in relation to global context
Publication -
Effects of biochar on uptake, acquisition and translocation of silver nanoparticles in rice (Oryza sativa L.) in relation to growth, photosynthetic traits and nutrients displacement
Publication -
OVERLAP BETWEEN PERSONAL AND GROUP IDENTITY AND ITS RELATION WITH RADICAL PRO-GROUP ATTITUDES: DATA FROM A CENTRAL EUROPEAN CULTURAL CONTEXT
Publication -
PM10 concentration and microbiological assessment of air in relation to the number of acute cases of type 1 diabetes mellitus in the Lubelskie Voivodeship. Preliminary report
Publication -
Evaluation of structural change during fast transformation process of cross-linked NR into liquid NR by light pyrolysis
PublicationThe presence of cross-linked networks in rubber creates a tremendous problem for recycling and reusing of waste rubber. Fast transformation of cross-linked natural rubber (NR) into liquid natural rubber was carried out by light pyrolysis in temperature range from 240 to 300 °C in variable time (in range: 1–30 min). The transformation efficiency was evaluated by measuring the sol fraction and the cross-link density of the gel fraction....
-
Zastosowanie spektrofotometrii w bliskiej podczerwieni NIR w kontroli i technologii produkcji leków
PublicationMetody wykorzystywane w badaniach trwałości mają na celu w prosty i stosunkowoszybki sposób ilościowo ocenić zmiany zachodzące w związkach chemicznych będącychsubstancjami czynnymi leków. Właściwy dobór metody analitycznej jest więc niezwyklewaŜnym aspektem pracy. Badaniom fotochemicznego rozkładu poddano chlorowodorekranitydyny oraz leki zawierające tę substancję. Zmiany w substancjach poddanych ekspozycji
-
Porównanie spektroskopii IR oraz NIR w analizie tożsamościowej surowców kosmetycznych i farmaceutycznych
PublicationTechniki wykorzystujące spektroskopię podczerwieni (IR) i bliskiej podczerwieni (NIR) znalazły szerokie zastosowanie w wielu gałęziach przemysłu takich jak: przemysł spożywczy, farmaceutyczny, petrochemiczny, kosmetyczny, rolniczy. Spektroskopia podczerwieni wykorzystywana jest zarówno w analizie jakościowej jak i ilościowej surowców, produktów końcowych czy też podczas monitorowania procesów produkcyjnych. Dzięki połączeniu spektroskopii...
-
GTR/NBR/Silica Composites Performance Properties as a Function of Curing System: Sulfur versus Peroxides
PublicationIn this work, conventional sulfur and two types of organic peroxides (dicumyl peroxide (DCP) and di-(2-tert-butyl-peroxyisopropyl)-benzene (BIB)) curing systems were used to investigate the possibility for tailoring of the performance properties of GTR/NBR blends reinforced with a variable content of highly dispersive silica (0–30 phr). The curing characteristics, static mechanical and acoustical properties, swelling behavior,...
-
In vitro enzyme kinetics and NMR-based product elucidation for glutathione S-conjugation of the anticancer unsymmetrical bisacridine C-2028 in liver microsomes and cytosol: major role of glutathione S-transferase M1-1 isoenzyme
PublicationThis work is the next step in studying the interplay between C-2028 (anticancer-active unsymmetrical bisacridine developed in our group) and the glutathione S-transferase/glutathione (GST/GSH) system. Here, we analyzed the concentration- and pH-dependent GSH conjugation of C-2028 in rat liver microsomes and cytosol. We also applied three recombinant human GST isoenzymes, which altered expression was found in various tumors. The...
-
A CONCEPT OF DETERMINING THE RELATION BETWEEN LOAD AND WEAR OF TRIBOLOGICAL SYSTEMS OF SHIP MAIN SELF-IGNITION ENGINES BY USING PROBABILISTIC APPROACH PROBABILISTIC APPROACH
PublicationThis paper presents a proposal of simultaneous consideration of load and wear associated with it , of tribological systems of ship main engines (intended for ship propulsion) . Based on results of investigations it was assumed that both the load Q (i.e. a cause of wear ) and the wear Z (i.e. an effect of load occurrence) considered in a given time t(0 ≤ t ≤ t) are random variables Qt and Zt, respectively. There was characterized...
-
Ekspertyza toru Nr 1 w km 0,828-0,980 linii Nr 202 Gdańsk Główny - Stargard Szczeciński
PublicationEkspertyza toru Nr 1 w km 0,828-0,980 linii Nr 202 Gdańsk Główny - Stargard Szczeciński. Zakład Linii Kolejowych PLK S.A. w Gdyni.
-
Techniki elektroimpedancyjne w medycynie.Monografie nr 43.
PublicationPierwsze aplikacje techniki elektroimpedancyjnej w warunkach klinicznych mają miejsce w latach pięćdziesiątych poprzedniego wieku. Były one związane z próbami oceny przepływu kończynowego za pomocą pletyzmografii impedancyjnej.Od tego czasu technika elektroimpedancyjna, z różnym powodzeniem, była wprowadzana do różnych działów medycyny, np. kardiologii, kardiochirurgii, czy intensywnej opieki medycznej. W znakomitej większości...
-
Insights into the Effects of Cancer Associated Mutations at the UPF2 and ATP-Binding Sites of NMD Master Regulator: UPF1
Publication -
Automatic Adjustment of Integration Time in the NIR Camera for Calibrated Temperature Measurement during Inductive Heating Processes
Publication -
The Co-Culture of Staphylococcal Biofilm and Fibroblast Cell Line: The Correlation of Biological Phenomena with Metabolic NMR1 Footprint
Publication -
Synthesis and biological activity of tuftsin, its analogues and conjugates containing muramyl dipeptides of nor-muramyl dipeptides
PublicationOpisano syntezę koniugatów MDP oraz nor-MDP modyfikowanych w części peptydowej tuftsyną oraz pochodną tuftsyny zawierającą grupę nitrową. Zsyntetyzowane związki zostały przebadane in vitro na ludzkich monocytach i limfocytach w Akademii Medycznej w Gdańsku. Niektóre z nich wykazały szybsze i skuteczniejsze działanie w porównaniu z tuftsyną.
-
Crystallization kinetics study of dynamically vulcanized PA6/NBR/HNTs nanocomposites by nonisothermal differential scanning calorimetry
PublicationInvestigation of crystallization behavior and kinetics of thermoplastic elastomer nanocomposites was the subject of limited works because of complexities associated with semiexperimental modeling of such phenomenon in a system containing components having completely different behavior in the molten state. Nonisothermal crystallization kinetics of dynamically vulcanized PA6/NBR/HNTs thermoplastic elastomer nanocomposites was mathematically...
-
Contrasting effects of biochar, compost and farm manure on alleviation of nickel toxicity in maize (Zea mays L.) in relation to plant growth, photosynthesis and metal uptake
Publication -
Features of Nonlinear Sound Propagation in Vibrationally Excited Gases
PublicationWeakly nonlinear sound propagation in a gas where molecular vibrational relaxation takes place is studied. New equations which govern the sound in media where the irreversible relaxation may take place are derived and discussed. Their form depends on the regime of excitation of oscillatory degrees of freedom, equilibrium (reversible) or non-equilibrium (irreversible), and on the comparative frequency of the sound in relation to...