Materials Literature
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In this paper, we investigate interesting subordination properties for certain subclasses of meromorphic analytic and univalent functions in the puncture unit disc which are defined here by means of new linear operator. Further, few interesting special cases and examples are obtained for an appropriate choices of the…
In order to find the right support to form assemblies of superatoms with useful magnetic properties, adsorption of the magnetic superatom ${\mathrm{FeCa}}_{8}$ on different types of substrates is studied using first-principles electronic structure methods. ${\mathrm{FeCa}}_{8}$ interacts strongly with oxide and metal…
The Paton Welding Journal, 2015, №01. International Scientific-Technical and Production Journal «The Paton Welding Journal» «The Paton Welding Journal» has been published monthly since 2000 in English, ISSN 0957-798X. «The Paton Welding Journal» is a cover-to-cover English translation of the «Avtomaticheskaya Svarka»…
Oxyfluoride glassceramics containing CaF2 nanocrystals doped with Y 3+ ions were prepared by onestep crystallization of SiO2Al2O3CaOCaF2 glasses at different temperatures. X-ray diffraction (XRD) results have revealed that CaF2 was the only precipitated crystalline phase in glassceramic samples. According to the XRD r…
The poly-3-hydroxylkanoate (PHA)-overproducing mutant Pseudomonas putida U ΔfadBA (PpΔfadBA) lacks the genes encoding the main β-oxidation pathway (FadBA). This strain accumulates enormous amounts of bioplastics when cultured in chemically defined media containing PHA precursors (different n-alkanoic or n-aryl-alkanoi…
Density functional theory and density matrix theory are employed to investigate the time-dependent optical and electronic properties of an Au14 nanocluster protected by six cyclic thiolate ligands, Au4(SCH3)4. The Au14[Au4(SCH3)4]6 nanocluster, i.e. Au38(SCH3)24, is equivalent to a truncated-octahedral face-centred cu…
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
Leishmaniasis is a wide spread tropical disease caused by protozoan parasite Leishmania which belongs to order kinetoplastida and family trypanosomatidae. Ornithine decarboxylase is key enzyme in polyamine biosynthesis in Leishmania donovani. Here, we report biochemical characterization of ornithine decarboxylase from…
We studied three-dimensional honeycomb-structure boron nitride (BN) allotrope using first-principles calculations and the tight-binding method. Interconnected by sp(3)-bonding at the vertices, hexagonal BN nanoribbons construct highly-porous, covalently-bonded hexagonal BN nanoribbons (CBBNs). We investigated the stru…
In this study, AC characterisation of DNA molecular wires, effects of frequency, temperature and UV irradiation on their conductivity is presented. λ-DNA molecular wires suspended between high aspect-ratio electrodes exhibit highly frequency-dependent conductivity that approaches metal-like behaviour at high frequenci…
Isolation of cellulosic materials from agricultural wastes such as skin of various fruits have been carried out. Isolated cellulosic materials have been converted into their acetate and carboxymethyl cellulose derivatives. The derivatives have been characterized by titrimetric method, pH- titration and FT-IR spectrosc…
Both FeSe and cuprate superconductors are quasi 2D materials with high transition temperatures and local fermion pairs. Motivated by such systems, we investigate real space pairing of fermions in an anisotropic lattice model with intersite attraction, V, and strong local Coulomb repulsion, U, leading to a determinatio…
Plant bitters, traditionally used against loss of appetite and fever, owe their therapeutic efficacy to the content of iridoids such as swertiamarin. The aim of the study was to develop a simple, precise, rapid, and reliable high-performance thin-layer chromatography (HPTLC) method for the estimation of swertiamarin i…
Both FeSe and cuprate superconductors are quasi 2D materials with high transition temperatures and local fermion pairs. Motivated by such systems, we investigate real space pairing of fermions in an anisotropic lattice model with intersite attraction, V, and strong local Coulomb repulsion, U, leading to a determinatio…
Single crystals of Gd3Ga3Al2O12:Ce with Ca, B and Ba codopants were successfully grown using the Czochralski technique. The samples of each composition were irradiated to 10 kGy and 100 kGy gamma dose to determine the radiation induced absorption. The Ca co-doped crystal was found to have maximum induced absorption, w…
The paper presents the effects of differentiation of initial matrix (silica gel Si-50 or Aerosil A-200) and the addition of Ni2+ ions (in the form of Ni(NO3)2·6H2O) on structural and thermal properties of carbosils prepared by mechanochemical deposition of carbon matter (potato starch). Porous structure of the initial…
57 Fe Mössbauer spectroscopy in an applied magnetic field has been conducted on single crystals of CuFeO2 and CuFe 0.965Ga0.035O2 in order to investigate magnetic-field-induced ferroelectric states. The Mössbauer spectra observed under a magnetic field change significantly, corresponding to magnetic- field-induced pha…
The electrical, physical, mechanical and thermal properties of fluorine-containing alicyclic polyimides have been investigated. It was shown that the minimum value of the dielectric constant 1.91 at room temperature and 1 kHz frequency was achieved for polymers containing only one fluorine atom in the structure. The d…
We grew epitaxial layers on 4H-SiC C-face substrates with a 1° off-angle, and discussed important factors related to stacking fault (SF) density reduction by investigating the causes of SFs. Three types of SFs were generated, namely 3C inclusions, 8H-SFs and -SFs. The 3C inclusions were caused by 3C-SiC particles, whi…
This past few years have heralded remarkable times for intermediate filaments with new revelations of their structural properties that has included the first crystallographic-based model of vimentin to build on the experimental data of intra-filament interactions determined by chemical cross-linking. Now with these an…