Filters
total: 2114
filtered: 1699
-
Catalog
- Publications 1699 available results
- Journals 106 available results
- Conferences 3 available results
- People 65 available results
- Inventions 3 available results
- Projects 10 available results
- Laboratories 2 available results
- Research Equipment 3 available results
- e-Learning Courses 65 available results
- Events 9 available results
- Open Research Data 149 available results
Chosen catalog filters
displaying 1000 best results Help
Search results for: moment kwadrupolowy
-
Serum bisphenol A concentrations correlate with serum testosterone levels in women with polycystic ovary syndrome
PublicationThe aim of this study was to determine serum bisphenol A (BPA) concentrations using high performance liquid chromatography with tandem mass spectrometry (HPLC–MS/MS) in women with polycystic ovary syndrome (PCOS) (n=106, age range 18–40 yrs) and to evaluate its potential impact on their hormonal and metabolic profile. The control group consisted of age- and BMI-matched 80 eumenorrheic women with no clinical or biochemical hyperandrogenism....
-
Women's Entrepreneurship in Poland- Opportunities and Barriers According to Young Women Entering the Labour Market
PublicationWomen entrepreneurship is an important issue for both economic and social reasons. However cultural factors have an additional impact. In Poland women represent more than 50% of the population, nonetheless only 35% of people who run their own business are women. Main research questions in the current study were: What are the determinants of the above mentioned imparity? Do young women evaluate themselves as entrepreneurial? Do...
-
Calculation of Resonance in Planar and Cylindrical Microstrip Structures Using a Hybrid Technique
PublicationA hybrid technique was employed for the analysis of the resonance frequency of thin planar and cylindrical microstrip structures with the patches of arbitrary geometry. The proposed technique utilizes a combination of Galerkin’s moment method and a finite-element method (FEM). In this approach, an FEM is adopted to calculate the patch surface current densities, and a method of moments is utilized to calculate the resonance frequencies...
-
Resonance microstrip structure with patch of arbitrary convex geometry with the use of field matching technique
PublicationAn analysis of the resonance frequency problem of planar microstrip structure with patch of arbitrary convex geometry is presented. A full-wave analysis is employed utilizing a combination of Galerkin’s moment method and field matching technique. In this approach, a field matching technique is adopted to calculate the patch surface current densities, and next the method of moments is utilized to calculate resonance frequencies...
-
Sterowanie silnikiem indukcyjnym w szerokim zakresie prędkości kątowej wału z wykorzystaniem modelu multiskalarnego
PublicationW artykule przedstawiono strategię sterowania silnikiem indukcyjnym przy osłabionym strumieniu magnetycznym. Pozwala to na znaczące rozszerzenie zakresu regulacji prędkości kątowej wału. Do syntezy bezczujnikowego układu regulacji wykorzystano model multiskalarny. Największą korzyścią z zastosowania modelu multiskalarnego jest uzyskanie pełnego odsprzężenie torów regulacji strumienia magnetycznego i momentu elektromagnetycznego....
-
Sterowanie silnikiem indukcyjnym w szerokim zakresie prędkości kątowej wału z wykorzystaniem modelu multiskalarnego.
PublicationW artykule przedstawiono strategię sterowania silnikiem indukcyjnym przy osłabionym strumieniu magnetycznym. Pozwala to na znaczące rozszerzenie zakresu regulacji prędkości kątowej wału. Do syntezy bezczujnikowego układu regulacji wykorzystano model multiskalarny. Najwiekszą korzyścią z zastosowania modelu multiskalarnego jest uzyskanie pełnego odsprzężenia torów regulacji strumienia magnetycznego i i momentu elektromagnetycznego.Zostały...
-
Noise Analysis of Continuous GPS Time Series of Selected EPN Stations to Investigate Variations in Stability of Monument Types
PublicationThe type of monument that a GPS antenna is placed on plays a significant role in noise estimation for each permanent GPS station. In this research 18 Polish permanent GPS stations that belong to the EPN (EUREF Permanent Network) were analyzed using Maximum Likelihood Estimation (MLE). The antennae of Polish EPN stations are placed on roofs of buildings or on concrete pillars. The analyzed data covers a period of 5 years from 2008...
-
Induction of G2/M phase arrest and apoptosis of human leukemia cells by potent antitumor triazoloacridinone C-1305
PublicationWykazaliśmy, że pochodna triazoloakrydonu C-1305 w stężeniach biologicznie istotnych indukuje blok cyklu komórkowego w fazie G2/M i apoptozę w komórkach białaczek ludzkich MOLT4 i HL60. Zjawisko apoptozy zostało określone na podstawie charakterystycznych zmian morfologicznych jak i biochemicznych tj. fragmentacji DNA, aktywacji kaspazy 3, cięcia PARP, spadku potencjału mitochondrialnego i ATP oraz eksternalizacji fosfatydyloseryny.
-
Potent antitumor 4-methyl-1-nitroacridine C-1748 induces apoptosis only in part of colon cells
PublicationZbadaliśmy zdolność pochodnej 4-metylo-1-nitroakrydyny C-1748 do indukcji apoptozy w ludzkich komórkach nowotworów jelita grubego HCT-8 i HT29 w stężeniach biologicznie istotnych. Zjawisko apoptozy określiliśmy na podstawie zmian morfologicznych jak i biochemicznych tj. fragmentacji DNA, aktywacji kaspazy-3, spadku potencjału mitochondrialnego, eksternalizacji fosfatydyloseryny i pojawiania się frakcji sub-G1. Wykazaliśmy, że pochodna...
-
The Leaderless Bacteriocin Enterocin K1 Is Highly Potent against Enterococcus faecium: A Study on Structure, Target Spectrum and Receptor
Publication -
Vascular endothelial growth factor (VEGF)-C - a potent risk factor in children diagnosed with stadium 4 neuroblastoma.
Publication -
Vascular endothelial growth factor C—a potent risk factor in childhood acute lymphoblastic leukaemia: an immunocytochemical approach
Publication -
Ultrasonic Evaluation of Cement-Based Building Materials Modified Using Marble Powder Sourced from Industrial Wastes
Publication -
Highly Potent Antidiuretic Antagonists: Conformational Studies of Vasopressin Analogues Modified with 1-Naphthylalanine Enantiomers at Position 2
Publication -
Potent antitumor 4-methyl-1-nitroacridine C-1748 induces apoptosis only in part of colon cells
PublicationCelem przedstawionej pracy było zbadanie zdolności pochodnej 1-nitroakrydyny C-1748 do indukcji apoptozy komórek raka jelita grubego HCT8 i HT29 pochodzenia ludzkiego. Śmierć komórek była badana przez określony czas inkubacji komórek ze związkiem w stężeniach odpowiadających wartościom EC90 lub ich wielokrotnościom przez czas od 3 do 72 godzin. Uzyskane wyniki wskazują, że C-1748 indukuje apoptozę zależną od czasu tylko w części...
-
Functional Bi2O3/Gd2O3 Silica-Coated Structures for Improvement of Early Age and Radiation Shielding Performance of Cement Pastes
PublicationThis 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...
-
Antimicrobial Activity of Al2O3, CuO, Fe3O4, and ZnO Nanoparticles in Scope of Their Further Application in Cement-Based Building Materials
Publication -
Reply to Comment on ‘Nanodiamond incorporated human liver mimicking phantoms: prospective calibration medium of magnetic resonance imaging’
PublicationDependence of the spin–lattice (T1) relaxation times on the nanodiamond concentration in human liver phantoms is discussed. Factors affecting stability and and reproducibility of these phantoms are presented. The need for comparative measurements on multiple MRI scanners for better understanding of potential variations in the obtained imaging data is emphasised.
-
Approximation of the non-linear roll damping
PublicationArtykuł omawia, jak otrzymać oszacowanie nieliniowego momentu tłumiącehgo kołysania boczne okretu za pomocą zapisu przebiegu kołysań swobodnych modelu okrętu. Udowadnia, że 1) moment tłumiący w kategoriach aproksymacji jest nieanalityczną funkcją nieparzystą prędkosci kołysań, 2) standardowa metoda, oparta na stosunku dwóch kolejnych amplitud, ma ograniczone zastosowanie, do niezbyt dużych amplitud kołysań. Zaproponowano nową metodą...
-
Determining the optimal course alteration maneouvre in a multi-target encounter situation for a given ship domain model
PublicationW artykulee przedstawiono nową deterministyczną metodę wyznaczania niezbędnego manewru kursem dla sytuacji spotkania z wieloma obiektami obcymi i dla dowolnej zadanej domeny. Jej prostota i niska złożoność obliczeniowa czynią ją dobrą alternatywą dla obecnie stosowanych metod. Główny algorytm został przedstawiony wprost, tak aby mógł być bezpośrednio zastosowany w pokładowych systemach antykolizyjnych lub w systemach VTS.
-
Analysis of power output and bar velocity during various techniques of the bench press among women
Publication -
Nutritional behaviors of women and men in Poland during confinement related to the SARS-CoV-2 epidemic
Publication -
Nutritional Behaviors of Women and Men in Poland During Confinement Related to the SARS-CoV-2 Epidemic
Publication -
The Attitudes of Polish Women towards Breastfeeding Based on the Iowa Infant Feeding Attitude Scale (IIFAS)
Publication -
Genetic and lifestyle variables associated with homocysteine concentrations and the distribution of folate derivatives in healthy premenopausal women
Publication -
Ambulatory blood pressure in mild hypertensive women taking oral contraceptives a case-control study
Publication -
Exposure to Bisphenol A Analogs and the Thyroid Function and Volume in Women of Reproductive Age—Cross-Sectional Study
PublicationBisphenols (BPs) are commonly known plastifiers that are widely used in industry. The knowledge about the impact of BPs on thyroid function is scarce. Proper thyroid functioning is especially important for women of reproductive age, as hypothyroidism affects fertility, pregnancy outcomes and the offspring. There are no studies analyzing the influence of BPs on thyroid function and volume in non-pregnant young women. The aim of...
-
Temperament and ovarian reproductive hormones in women: Evidence from a study during the entire menstrual cycle
Publication -
Apolipoprotein E ( ApoE ) polymorphism is related to differences in potential fertility in women: a case of antagonistic pleiotropy?
Publication -
Psychological Functioning of Women Diagnosed with Lichen Planus and Other Diseases of the Oral Cavity—Explorative Study
Publication -
Comment on “Entanglement of two interacting bosons in a two-dimensional isotropic harmonic trap” [Phys. Lett. A 373 (2009) 3833]
Publication -
Durability and mechanical properties of seashell partially-replaced cement, Journal of Building Engineering 2020-09-03 | Journal article |
Publication -
Novel Potent Muscarinic Receptor Antagonists: Investigation on the Nature of Lipophilic Substituents in the 5- and/or 6-Positions of the 1,4-Dioxane Nucleus
Publication -
Predicting Compressive Strength of Cement-Stabilized Rammed Earth Based on SEM Images Using Computer Vision and Deep Learning
Publication -
Potent antidiuretic agonists, deamino-vasopressin and desmopressin, and theirinversoanalogs: NMR structure and interactions with micellar and liposomic models of cell membrane
Publication -
Antitumor triazoloacridinone C-1305 as a potent FLT3 tyrosine kinase inhibitor in human acute myeloid leukemia (AML) cells.
PublicationJednym z defektów molekularnych u pacjentów z ostrą białaczką szpikową (AML) jest konstytutywna aktywacja receptoroweej kinazy tyrozynowj FLT3.Najczęstszą mutacją genu kodującego FLT3 jest wewnętrzna tandemowa duplikacja ITD we fragmencie okołobłonowym receptora. W pracy zbadano, czy przeciwnowotworowy triazoloakrydon C-1305 może być inhibitorem kinazy tyrozynowej FLT3. Badania przeprowadzono na dwóch liniach komórkowych białaczek...
-
Structure-based design and in vivo anti-arthritic activity evaluation of a potent dipeptidyl cyclopropyl nitrile inhibitor of cathepsin C
Publication -
Nanosilver-loaded PMMA bone cement doped with different bioactive glasses – evaluation of cytocompatibility, antibacterial activity, and mechanical properties
PublicationNanosilver-loaded PMMA bone cement (BC-AgNp) is a novel cement developed as a replacement for conventional cements. Despite favorable properties and antibacterial activity, BC-AgNp still lacks biodegradability and bioactivity. Hence, we investigated the doping with bioactive glasses (BGs) to create a new bioactive BC characterized by time-varying porosity and gradual release of nanosilver. The BC Cemex was used as the base material...
-
Boosting Portland cement-free composite performance via alkali-activation and reinforcement with pre-treated functionalised wheat straw
Publication -
Quantitative determination of processed waste expanded perlite performance as a supplementary cementitious material in low emission blended cement composites
Publication -
New and potent production platform of the acetylcholinesterase inhibitor huperzine A by gamma-irradiated Alternaria brassicae under solid-state fermentation
Publication -
Modeling flatness deviation in face milling considering angular movement of the machine tool system components and tool flank wear
Publication -
The Effect of Surface Modification of Ti13Zr13Nb Alloy on Adhesion of Antibiotic and Nanosilver-Loaded Bone Cement Coatings Dedicated for Application as Spacers
PublicationSpacers, in terms of instruments used in revision surgery for the local treatment of postoperative infection, are usually made of metal rod covered by antibiotic-loaded bone cement. One of the main limitations of this temporary implant is the debonding effect of metal–bone cement interface, leading to aseptic loosening. Material selection, as well as surface treatment, should be evaluated in order to minimize the risk of fraction...
-
Dry bearing sliding layer transverse flexibility effects on real sliding distance for reciprocating microoscillatory movement of flatcontact surface.
PublicationW referacie omówiono wpływ właściwości mechanicznych i kształtu warstwy ślizgowej z bezsmarowego materiału łożyskowego. Wcześniej omówione i publikowane wyniki badań doświadczalnych i analizy numerycznej wyjaśniły i potwierdziły, dlaczego rzeczywista droga tarcia jest znacznie mniejsza od nominalnej w warunkach mikrooscylacji. Wyniki przeprowadzonej analizy numerycznej pozwoliły możliwie najlepiej ukształtować powierzchnię ślizgania...
-
How Integration of a Brain-Machine Interface and Obstacle Detection System Can Improve Wheelchair Control via Movement Image
PublicationThis study presents a human-computer interaction combined with a brain-machine interface (BMI) and obstacle detection system for remote control of a wheeled robot through movement imagery, providing a potential solution for individuals facing challenges with conventional vehicle operation. The primary focus of this work is the classification of surface EEG signals related to mental activity when envisioning movement and deep relaxation...
-
Numerical modeling of PFAS movement through the vadose zone: Influence of plant water uptake and soil organic carbon distribution
PublicationIn this study, we investigated the effects of soil organic carbon (SOC) distribution and water uptake by plant roots on PFAS movement in the vadose zone with a deep groundwater table under temperate, humid climate conditions. Two series of numerical simulations were performed with the HYDRUS computer code, representing the leaching of historical PFOS contamination and the infiltration of water contaminated with PFOA, respectively. We...
-
Damage detection in a bolted lap joint using guided waves
PublicationThe paper presents the experimental investigation of guided waves application to the condition assessment of prestressed bolted connections and a concept of new quantitative indicator. The main goal of the research was the analysis of the influence of the contact conditions changes to the characteristics of a propagating disturbance. The experimental tests were carried out for a single bolted lap joint. The excitation and acquisition...
-
237Np Mössbauer effect study on NpFeAsO
PublicationWe report 237Np Mössbauer measurements on NpFeAsO. The Np atoms were found to occupy only one crystallographic site. The value of the isomer shift (δ ∼ 9.1 mm s−1 versus NpAl2) indicates a 5f4 electronic configuration (Np3+ ions). The magnetic ordering of the Np sublattice below 60 K is established and the saturated ordered magnetic moment is determined to be 1.73μB at 3.6 K. The unique set of hyperfine parameters exclude a modulated...
-
Manganese(III) Promoted Cyclization of N-alkenyl-N-(2-hydroxyethyl) amides to Iso-Oxacepham Potent β-Lactamase Inhibitors
PublicationBackground: β-Lactams are still a subject of interest of organic chemists. The main reason for this interest is due to their application as a chemotherapeutic. β-Lactam antibiotics are still the most commonly used drugs in bacterial infections. Method: Methods using 4-exo-trig radical cyclization leading to β-lactams are an alternative to classical Staudinger`s β-Lactams formation. We prepared N-alkenyl-N-(2-hydroxyethyl)amides...
-
Glucosylceramide Mimics: Highly Potent GCase Inhibitors and Selective Pharmacological Chaperones for Mutations Associated with Types 1 and 2 Gaucher Disease
Publication