Filtry
wszystkich: 9523
wybranych: 4534
-
Katalog
- Publikacje 4534 wyników po odfiltrowaniu
- Czasopisma 304 wyników po odfiltrowaniu
- Konferencje 2 wyników po odfiltrowaniu
- Wydawnictwa 1 wyników po odfiltrowaniu
- Osoby 104 wyników po odfiltrowaniu
- Projekty 8 wyników po odfiltrowaniu
- Kursy Online 46 wyników po odfiltrowaniu
- Wydarzenia 3 wyników po odfiltrowaniu
- Dane Badawcze 4521 wyników po odfiltrowaniu
Filtry wybranego katalogu
wyświetlamy 1000 najlepszych wyników Pomoc
Wyniki wyszukiwania dla: THIACROWN ETHERS
-
Influence of attenuation on self-organized second-harmonic generation in a germanium-doped microstructured silica fiber
Publikacja -
A General Synthesis of Diaryl Cyclic Diamidines
PublikacjaA convenient and general method has been developed for directly converting bis-nitriles, e.g., I, to cyclic diamidines, e.g., II, using reagents derived from diaminoalkanes, e.g., H2NCH2CH2NH2, satd. with hydrogen sulfide. A 1:1 mixt. of a diaminoalkane and Et alc. (or without) was effective in most cases (72-88%). The synthetic utility of this methodol. in the prepn. of tetrakis(cyclic amidino)pyrenes III (R = H, Me) from 1,3,6,8-tetracyanopyrene...
-
Both activating and inhibitory Fc gamma receptors mediate rituximab-induced trogocytosis of CD20 in mice
Publikacja -
Towards the industry 4.0: Have ICT services improved the position of Central and Eastern Europe in global production linkages?
Publikacja -
Influence of Technological Parameters on the Isomerization of Geraniol Using Sepiolite
Publikacja -
Novel anion receptors: hybrid materials based on quaternary ammonium salts for selective extraction of dichromate ions
Publikacja -
Carbonaceous catalysts from orange pulp for limonene oxidation
Publikacja -
Callus of American ginseng (Panax quinquefolius) as a source of ginsenosides – medicinal secondary metabolites
Publikacja -
The antioxidant and antimicrobial properties of phenol-rich extracts of Dracocephalum forrestii W. W. Smith shoot cultures grown in the nutrient sprinkle bioreactor
Publikacja -
A new type of B-podand catalysts for solid–liquid phase transfer reactions
Publikacja -
Silicon polypodands: powerful metal cation complexing agents and solid–liquid phase-transfer catalysts of new generation
Publikacja -
Direct stimulation of macrophages by IL-12 and IL-18 — a bridge too far?
Publikacja -
Inner-Tube Chirality Determination for Double-Walled Carbon Nanotubes by Scanning Tunneling Microscopy
Publikacja -
Facile synthesis and properties of iron oxide spheres coated with carbon
Publikacja -
Influence of the Extraction Conditions on the Antifungal Properties of Walnut Green Husk Isolates
Publikacja -
Substrate profiling of Zika virus NS2B‐NS3 protease
Publikacja -
Effective kernel‐principal component analysis based approach for wisconsin breast cancer diagnosis
Publikacja -
Microarray analysis of differentially expressed genes in cells resistant to HIV-1
Publikacja -
Rotationally invariant bipartite states and bound entanglement
PublikacjaW pracy rozważano stany kwantowe niezmiennicze na działanie grupy SO(3). Pokazano, że w przypadku, gdy pierwszy podukład ma parzysty wymiar większy lub równy cztery oraz drugi podukład ma wymiar dowolny, większy niż pierwszy to pośród takich stanów zawsze istnieje splątanie związane.
-
Novel Catalysts, Room Temperature, and the Importance of Oxygen for the Synthesis of Single-Walled Carbon Nanotubes
Publikacja -
Targeting of p53 and its homolog p73 by protoporphyrin IX
Publikacja -
Aberration of the enzymatic activity of Fhit tumor suppressor protein enhances cancer cell death upon photodynamic therapy similarly to that driven by wild-type Fhit
Publikacja -
Room-Temperature Ferromagnetism in InSb-Mn Nanowires
Publikacja -
Contribution of small heat shock proteins to muscle development and function
Publikacja -
Lower Temperature Dehydrogenation of Methylcyclohexane by Membrane-assisted Equilibrium Shift
Publikacja -
Evidence for sex steroid receptors in feline brainstem
Publikacja -
Fabrication of diet supplements components applied in order to reduce body mass
Publikacja -
Composites of polylactide and nano-hydroxyapatite created by cryomilling and warm isostatic pressing for bone implants applications
Publikacja -
Calibration in Metrological Approach
Publikacja -
Propargylamines in Pd/Cu-catalyzed tandem coupling-cyclization-N-deprotection in a single pot: Construction of N-unsubstituted vs N-sulfonyl indole ring
Publikacja -
Quantitative structure activity relationships for the conversion of nitrobenzimidazolones and nitrobenzimidazoles by DT-diaphorase: implications for the kinetic mechanism
Publikacja -
Inhibition of phthalocyanine-sensitized photohemolysis of human erythrocytes by polyphenolic antioxidants: description of quantitative structure–activity relationships
Publikacja -
Quantitative structure activity relationships for the electron transfer reactions ofAnabaenaPCC 7119 ferredoxin-NADP+oxidoreductase with nitrobenzene and nitrobenzimidazolone derivatives: mechanistic implications
Publikacja -
DT-diaphorase catalyzes N-denitration and redox cycling of tetryl
Publikacja -
Thermal properties of dense polymer-derived SiCN(O) glasses
Publikacja -
Enantiopure C1-Cyclotriveratrylene with a Reversed Spatial Arrangement of the Substituents
Publikacja -
Giving Moral Competence High Priority in Medical Education. New MCT-based Research Findings from the Polish Context
Publikacja -
Mapping Mechanostable Pulling Geometries of a Therapeutic Anticalin/CTLA-4 Protein Complex
Publikacja -
Photocatalytic Removal of Phenol Under UV Irradiation on WO x –TiO2 Prepared by Sol–Gel Method
Publikacja -
TiO2 Nanoparticles with High Photocatalytic Activity Under Visible Light
Publikacja -
An efficient and convenient synthesis of unsymmetrical disulfides from thioacetates
PublikacjaWe have developed convenient methods for the synthesis of functionalized unsymmetrical dialkyl disulfides under mild conditions in very good yields. The designed method is based on the reaction of (5,5-dimethyl-2-thioxo-1,3,2-dioxaphosphorinan-2-yl)-disulfanyl derivatives 1 with functionalized alkyl thiolate anions, generated in situ from thioacetates2and sodium methoxide or butylamine. The developed method allows the preparation...
-
Production of tropane alkaloids in Hyoscyamus niger (black henbane) hairy roots grown in bubble-column and spray bioreactors
PublikacjaHairy root cultures of Hyoscyamus niger were cultivated in shake-flasks, a bubble-column bioreactor and a hybrid bubble-column/spray bioreactor and evaluated for alkaloid production.
-
Comparison of High Performance Liquid Chromatography Methods with Different Detectors for Determination of Steroid Hormones in Aqueous Matrices
PublikacjaThis paper presents the development and comparison of procedures for the qualitative and quantitative determination of five estrogenic compounds (17-a-ethynylestradiol, estrone, estradiol, estriol, and progesterone) in drinking water and wastewater samples. Five extraction columns and two disks were tested for their efficiency. The C18 columns were superior on the basis of cost for solid phase extraction of drinking water or sewage....
-
Microstructure and residual stresses in surface coatings with PTFE reservoirs
PublikacjaThe paper presents the results of experimental study into the microstructure and changes in residual stresses resulting from sliding and rolling/sliding loaded interaction between metallic surface coatings with embedded PTFE reservoirs and various counter faces. It was found that before testing surface coatings had compressive residual stresses. Molybdenum coating with all types of PTFE reservoirs displayed, as a result of testing,...
-
Discrete Green's function approach to disjoint domain simulations in 3D FDTD method
PublikacjaA discrete Green’s function (DGF) approach to couple 3D FDTD subdomains is developed. The total-field/scattered-field subdomains are simulated using the explicit FDTD method whilst interaction between them is computed as a convolution of the DGF with equivalent current sources measured over Huygens surfaces. In the developed method, the DGF waveforms are truncated using the Hann’s window. The error varies in the range -65 to -40...
-
On the Possibilities of Decreasing Power Loss in Large Tilting Pad Thrust Bearings
PublikacjaJournal Menu About this Journal Abstracting and Indexing Aims and Scope Article Processing Charges Articles in Press Author Guidelines Bibliographic Information Citations to this Journal Contact Information Editorial Board Editorial Workflow Free eTOC Alerts Publication Ethics Submit a Manuscript Table of Contents Abstract Full-Text PDF Full-Text HTML...
-
Performance of lubricated sliding contact in magnetic field
PublikacjaResults of experimental studies concerning theinfluence of permanent magnetic field on wear of lubricatedsliding contact operating at short stroke and highfrequency are presented. It was found that horizontalmagnetic is affecting performance of the contact. Thejagged delamination regions produced in the presence of amagnetic field can be regarded as easily undergoing oxidisationbecause oxygen is readily adsorbed there. Magneticfield...
-
Tautomerism, structure and properties of 1,1',1''-(2,4,6-trihydroxybenzene-1,3,5-triyl)triethanone
PublikacjaWedług teoretycznych przewidywań 1,3,5-triacetylo-2,4,6-trihydroksybenzen może występować w 5 formach tautomerycznych, z których dwie powinny wyróżniać się wysoką stabilnością. Teoretyczne przewidywania zostały skonfrontowane z rezultatami pomiarów spektralnych.
-
Helicity Discrimination in Diaryl Dichalcogenides Generateded by Inclusion Complexation with Chiral Hosts
PublikacjaNiektóre z molekuł pozbawione centrum stereogenicznego mogą przyjmować chiralną konformację na skutek wewnętrznej rotacji wzdłuż odpowiedniego wiązania. Do grupy tej należą badane przez nas diarylodichalogenki; diarylodisiarczki, diarylodiselenki i diaryloditellurki. Niska bariera rotacji wokół wiązania chalogen-chalogen skutkuje szybką racemizacją molekuł tych związków w roztworze i uniemożliwia badanie czynności optycznej. Wykazaliśmy,...
-
Tribological performance of PTFE-metal binary coatings in rolling/sliding contact
PublikacjaTribological performance of surface coatings with embedded PTFE reservoirs in rolling/sliding contact is reported. Using two different coating materials and two shapes and patterns of PTFE reservoirs test samples in the form of discs were prepared and tested in a four-ball contact configuration under loads corresponding to nominal contact pressure of 0.5 and 1.0 GPa. It was found that one coating, namely aluminium-bronze with embedded...