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Search results for: ligandy p-donorowe
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Engineering Au nanoparticle arrays on SiO2 glass by pulsed UV laser irradiation
PublicationWe study semi-regular arrays of Au nanoparticles (NP) obtained via UV laser irradiation of thin Au films on glass substrate. The NP structures are prepared from films of a thickness up to 60 nm produced by discharge sputtering or pulsed laser deposition, and annealed by nanosecond laser pulses at 266 or 308 nm, respectively, at fluencies in the range of 60-410 mJ/cm2. For the rare- and close-packed NP structures, consistent description...
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Quantifying Contextuality
PublicationContextuality is central to both the foundations of quantum theory and to the novel information processing tasks. Despite some recent proposals, it still faces a fundamental problem: how to quantify its presence? In this work, we provide a universal framework for quantifying contextuality. We conduct two complementary approaches: (i) the bottom-up approach, where we introduce a communication game, which grasps the phenomenon of...
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Bound on Bell inequalities by fraction of determinism and reverse triangle inequality
PublicationIt is an established fact that entanglement is a resource. Sharing an entangled state leads to nonlocal correlations and to violations of Bell inequalities. Such nonlocal correlations illustrate the advantage of quantum resources over classical resources. In this paper, we quantitatively study Bell inequalities with 2 × n inputs. As found in Gisin et al. [Int. J. Quantum. Inform. 05, 525 (2007)], quantum mechanical correlations...
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Electron collisions with cyanoacetylene HC3N : Vibrational excitation and dissociative electron attachment
PublicationWe experimentally probe electron collisions with HC3N in the energy range from 0 to 10 eV with the focus on vibrational excitation and dissociative electron attachment. The vibrational excitation cross sections show a number of resonances which are mode specific: the two dominant π∗ resonances are visible in the excitation of all the vibrational modes; however, broad σ ∗ resonances are visible only in certain bond-stretching vibrational...
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Positron-annihilation monitoring of reduction processes in conducting glasses.
PublicationW publikacji podano wyniki badań metodą anihilacji pozytronów szkieł bizmutowo-krzemianowych, bizmutowo-germanianowych i ołowiowo-krzemianowych. Stwierdzono istnienie defektów wywołanych redukcją w atmosferze wodoru. Przeprowadzono analizę głębokości występowania defektów oraz ich rozmiarów.
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Biblioteka i biznes – dobry przykład – British Library
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Nonlinear optical birefringence in Li2SO4-MgO-P2O5 amorphous system -influence of Cu ions
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Investigations on the influence CuO doping on elastic properties of Li2SO4–MgO–P2O5 glass system by means of acoustic wave propagation
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Influence of Ni ion site occupancy on laser induced third harmonic generation (THG) studies in Li2SO4–MgO–P2O5 amorphous system
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Influence of NiO doping on elastic properties of Li2SO4-MgO-P2O5 glass system-Investigation by means of acoustic wave propagation
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Luminescence and energy-storage properties of Pr3+-doped YAlO3 crystals
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Composite thermoluminescent detectors based on the Ce3+ doped LuAG/YAG and YAG/LuAG epitaxial structures
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Preliminary evaluation of selected inflammatory cytokine gene expression in lymphocytes isolated from whole human blood infected with trans-anethole-treated Staphylococcus aureus Newman strain
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Native-oxide limited cross-plane thermal transport in suspended silicon membranes revealed by scanning thermal microscopy
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<title>Measurement and control of field in RF GUN at FLASH</title>
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Amber extract as a bio‐additive to poly(lactic acid) films: Multimethod analysis of crystallinity and stability
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Attitudes of Lazarski University Medical Students towards Disaster Medicine; Questionnaire Survey
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Triple helical collagen-like peptide interactions with selected polyphenolic compounds
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Ferro- and antiferro-magnetism in (Np, Pu)BC
PublicationTwo new transuranium metal boron carbides, NpBC and PuBC, have been synthesized. Rietveld refinements of powder XRD patterns of {Np,Pu} BC confirmed in both cases isotypism with the structure type of UBC. Temperature dependent magnetic susceptibility data reveal antiferromagnetic ordering for PuBC below T-N = 44 K, whereas ferromagnetic ordering was found for NpBC below T-C = 61 K. Heat capacity measurements prove the bulk character...
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B13 Can Dna Methylation Be A Factor In The Pathogenesis Of Huntington's Disease?
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Enhanced Sub-wavelength Focusing by Double-Sided Lens with Phase Correction in THz Range
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Podejście i metoda wyceny wartości rynkowej budynku przeznaczonego do remontu lub modernizacji
Publicationhttps://www.materialybudowlane.info.pl/pl/14591
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Composition engineering of Tb3-xGdxAl5-yGayO12:Ce single crystals and their luminescent, scintillation and photoconversion properties
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Investigation of the effect of Au2O3 dopant on elastic properties of PbO-B2O3-SeO2: Er2O3 glass ceramics by ultrasonic techniques
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Nursing students’ perception of the professional nurse's role in four European countries
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Valorization of Nutrient-Rich Urinal Wastewater by Microalgae for Biofuel Production
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Biohydrogen production from rice straw: Effect of combinative pretreatment, modelling assessment and energy balance consideration
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Carbon nanotubes chemically derivatized with rebox systems as mediators for biofuel cell applications
PublicationEnzymatyczne bioogniwa paliwowe to urządzenia wykorzystujące enzymy do przemiany energii chemicznej w elektryczną. Zyskana w ten sposób energia może służyć do zasilania wszczepialnych urządzeń (np. czujników glukozy, rozruszników serca).Przedstawiono sposób otrzymywania i właściwości bioelektrod, w których wykorzystano nanorurki węglowe modyfikowane mediatorami enzymatycznych reakcji redoks. Do nanorurek przyłączano zarówno mediatory...
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The simultaneous determination of hydrophobicity and dissociation constant by liquid chromatography–mass spectrometry
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Aging and rejuvenation effects in bismuth ferrite micro-cubes
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Food waste valorization: Biofuels and value added product recovery
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Production and recovery of polyhydroxyalkanoates (PHA) from waste streams – A review
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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...
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Carbon Nanotubes Chemically Derivatize with Redox Systems as Mediators for Biofel Cell Applicatoions
PublicationEnzymatyczne bioogniwa paliwowe to urządzenia wykorzystujące enzymy do przemiany energii chemicznej w elektryczną. Zyskana w ten sposób energia może służyć do zasilania wszczepialnych urządzeń (np. czujników glukozy, rozruszników serca).Przedstawiono sposób otrzymywania i właściwości bioelektrod, w których wykorzystano nanorurki węglowe modyfikowane mediatorami enzymatycznych reakcji redoks. Do nanorurek przyłączano zarówno mediatory...
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Chemical denudation and the role of sulfide oxidation at Werenskioldbreen, Svalbard
PublicationThis study aims to determine the rate of chemical denudation and the relationships between dominant geochemical reactions operating in the proglacial and subglacial environments of the polythermal glacier Werenskioldbreen (SW Svalbard) during an entire ablation season. Water sampling for major ion chemistry was performed at a proglacial hydrometric station and from subglacial outflows from May to September 2011. These data were...
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Formation of polyphosphorus ligands mediated by zirconium and hafnium complexes
PublicationThe reactions of R2P–P(SiMe3)Li (R = tBu, iPr, iPr2N) with [Cp2MCl2] (M = Zr, Hf), [Cp∗CpZrCl2] and [CpZrCl3] yielded polyphosphorus (mainly hexaphosphorus) compounds which can be viewed as intermediates between R2P–P(SiMe3)Li and derivatives of 1,2,3,4-tetraphosphabicyclo[1.1.0] butane. Thus R2P–P(SiMe3)Li can act as a building block for the formation of the P2 ligand and the R2P–P(P2) and R2P–P(P2)P–PR2 moieties. Solid state...
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Nowoczesne systemy bezpieczeństwa: monitoring, biometryka i Internet Rzeczy
PublicationNowoczesne technologie, takie jak systemy monitoringu, biometryka i Internet Rzeczy (IoT), odgrywają coraz większą rolę w ochronie osób i mienia. W dobie rosnących zagrożeń i dynamicznych zmian technologicznych, wdrażanie tych rozwiązań staje się kluczowe dla zapewnienia skuteczności systemów bezpieczeństwa. Monitoring pozwala na ciągłe śledzenie zdarzeń w czasie rzeczywistym, co umożliwia szybką reakcję na potencjalne...
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WSPÓŁCZESNE ZAGROŻENIA CYBERNETYCZNE METODY OSZUSTW I SKUTECZNE STRATEGIE OCHRONY
PublicationW dobie globalnej cyfryzacji i rosnącej roli technologii telekomunikacyjnych coraz więcej osób pada ofiarą oszustw związanych z fałszywymi połączeniami telefonicznymi, wiadomościami SMS oraz oszustwami internetowymi. Przestępcy posługują się zaawansowanymi metodami socjotechnicznymi, a wraz z rozwojem sztucznej inteligencji (AI) ich techniki stają się coraz bardziej wyrafinowane i trudniejsze do wykrycia. Niniejszy artykuł przedstawia...
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Phosphanylphosphaalkenes as precursors for metallaphosphaalkene complexes
PublicationWe synthesized phosphanylphosphaalkenes (biph)2C=P-P(tBu)2 (2), Ph2CvP-P(NEt2)2 (3), and (biph)2CvP-P(NEt2)2 (4). The diaminophosphanyl derivatives reversibly dimerize head-to-head and react with a ruthenium complex, leading to P–P bond activation and the formation of a bridging phospaalkene complex under mild conditions.
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CdWO/sub 4/ crystal in gamma-ray spectrometry
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Study of pure nai at room and liquid nitrogen temperatures
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Dynamical properties of ordered Fe–Pt alloys
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Enhanced sunlight photo-catalytic performances of ZnO/ZnNb2O6/Nb2O5 composites for organic pollutant degradation
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Formulation and evaluation of hydrogel containing dry extract of Tormentillae rhizoma designed for periodontal disease
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A comparison of cuticular hydrocarbons of larvae and beetles of the Tribolium destructor
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Radiation-related Changes in Serum Proteome Profiles Detected by Mass Spectrometry in Blood of Patients Treated with Radiotherapy Due to Larynx Cancer
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EP-1817: Radiotherapy-related changes in serum proteome patterns of head and neck cancer patients
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Scenarios as a tool supporting decisions in urban energy policy: The analysis using fuzzy logic, multi-criteria analysis and GIS tools
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Reactivity of Phosphanylphosphinidene Complex of Tungsten(VI) toward Phosphines: A New Method of Synthesis of catena-Polyphosphorus Ligands
PublicationThe reactivity of an anionic phosphanylphosphinidene complex of tungsten(VI), [(2,6-i-Pr2C6H3N)2(Cl)- W(η2-t-Bu2P=P)]Li·3DME toward PMe3, halogenophosphines, and iodine was investigated. Reaction of the starting complex with Me3P led to formation of a new neutral phosphanylphosphinidene complex, [( 2,6-i-Pr2C6H3N)2(Me3P)W(η2-t-Bu2P=P)]. Reactions with halogenophosphines yielded new catena-phosphorus complexes. From reaction with...
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Syntheses and Structures of Transition Metal Complexes with Phosphanylphosphinidene Chalcogenide Ligands
PublicationThe reactivity of the phosphanylphosphinidene complex [(DippN)2W(Cl)(η2-P-PtBu2)]− (1) toward chalcogens (Ch = Se, S) was studied. Reactions of stoichiometric amounts of 1 with chalcogens in DME yielded monomeric tungsten complexes with phosphanylphosphinidene chalcogenide ligands of the formula tBu2P−P−Ch (Ch = Se (in 2) and S (in 5)), which can be regarded as products of the addition of a chalcogen atom to a P=W bond in starting...