The Construction of Compton Tensors in Scalar QED
Not Available
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗
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Combination of Mesenchymal Stromal Cells and Cardiac Stem Cells in a Multilayer Cell Construct Promotes Activation of Notch Signaling and Initiation of Endothelial Differentiation
We showed the possibility of generating combined tissue-engineered cell consisting of layers of rat cardiac stem cells and mesenchymal stromal cells from the adipose tissue. Cell—cell interaction within the cell sheet promoted proliferation of cardiac stem cells, expression of endothelial differentiation marker ETS1, and Notch signaling activation. The obtained results provide new insights into possible mechanisms of stimulation of endogenous regeneration processes after myocardial damage and demonstrate potential of cell-based cardiomyoplasty with the use of these combined cell sheets.
60 APPLIED LIFE SCIENCES↗
Effect of Non-Thermal Plasma on Proliferative Activity and Adhesion of Multipotent Stromal Cells to Scaffolds Developed for Tissue-Engineered Constructs
We studied the effect of non-thermal argon plasma on proliferative activity of bone marrow multipotent stromal cells in vitro. Treatment of stromal cell suspension with pure argon did not affect their proliferation. The cells treated with non-thermal argon plasma and explanted in the treatment medium demonstrated growth inhibition by 30-40% in comparison with the control. Multipotent stromal cells treated with plasma and after centrifugation explanted in normal medium within 12 min demonstrated accelerated growth. The total cell growth from the pellet and supernatant significantly exceeded the control values. We also analyzed adhesion and proliferative activity of multipotent stromal cells treated with non-thermal plasma on bioresorbable carriers. The cells adhered and proliferated on all types of studied samples. Adhesion properties of scaffolds differed. Caprolactone was found to be the most suitable material for adhesion and proliferation of multipotent stromal cells.
60 APPLIED LIFE SCIENCES↗
Triphenylamine-Based Bis(β-Diketones) for Construction of Supramolecular Copper(II) Complexes
Not provided.
Crystallography↗
Simulation, Design, Construction of Duoplasmatron and Diagnostic Neutral Beam System for Alborz Tokamak
Diagnostic Neutral Beam (DNB) has been used for measuring plasma parameters of tokamaks such as ion and electron temperature, safety factor, impurity concentration and etc. Ion source and electrical power supply specification are the main part of DNB. Arc discharge current value is affected by filament current and anode voltage. Beam current changes with arc current signal in our experiment that agree with theoretical relations. Sixty milli-ampere (60 mA) pulse beam current is because of arc current of about 40 A and extraction voltage of about 20 kV. The increase of beam current with arc current has been reported experimentally and effect of arc current on beam current has been investigated for several high extraction voltages. Optimum condition, which means having a telescopic beam (minimum divergence) for specific parameters of duoplasmatron, has been simulated and verified with experimental test. The best extraction voltage for these parameters has been found to be about 16-kV. The ratio of the perpendicular velocity to parallel velocity has been calculated to be about 0.012. It has been shown experimentally with optical emission spectroscopy that increase in arc current and magnetic current increase proton content of beam.
70 PLASMA PHYSICS AND FUSION TECHNOLOGY↗
First-Principle Construction of U(1) Symmetric Matrix Product States
The algorithm to calculate the sets of symmetry sectors for virtual indices of U(1) symmetric matrix product states (MPS) is described. The principal differences between open (OBC) and periodic (PBC) boundary conditions are stressed, and the extension of PBC MPS algorithm to projected entangled pair states is outlined.
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗
A General Strategy to Achieve Colossal Permittivity and Low Dielectric Loss Through Constructing Insulator/Semiconductor/Insulator Multilayer Structures
In this work, we propose a route to realize high-performance colossal permittivity (CP) by creating multilayer structures of insulator/semiconductor/insulator. To prove the new concept, we made heavily reduced rutile TiO{sub 2} via annealing route in Ar/H{sub 2} atmosphere. Dielectric studies show that the maximum dielectric permittivity (~ 3.0 × 10{sup 4}) of our prepared samples is about 100 times higher than that (~ 300) of conventional TiO{sub 2}. The minimum dielectric loss is 0.03 (at 10{sup 4}–10{sup 5} Hz). Furthermore, CP is almost independent of the frequency (100–10{sup 6} Hz) and the temperature (20–350 K). We suggest that the colossal permittivity is attributed to the high carrier concentration of the inner TiO{sub 2} semiconductor, while the low dielectric loss is due to the presentation of the insulator layer on the surface of TiO{sub 2}. The method proposed here can be expanded to other material systems, such as semiconductor Si sandwiched by top and bottom insulator layers of Ga{sub 2}O{sub 3}.
36 MATERIALS SCIENCE↗
Tetranuclear heteroleptic mercury(II) complexes of the composition [Hg{sub 4}(S{sub 2}CNPr{sub 2}){sub 6}(NO{sub 3}){sub 2}] and [Hg{sub 4}(S{sub 2}CNPr{sub 2}){sub 4}Cl{sub 4}]: structural organization, principles of construction of supramolecular polymeric chains, and thermal behavior
New heteroleptic mercury(II) complexes [Hg{sub 4}(S{sub 2}CNPr{sub 2}){sub 6}(NO{sub 3}){sub 2}] (1) and [Hg{sub 4}(S{sub 2}CNPr{sub 2}){sub 4}Cl{sub 4}] (2) were synthesized and characterized by single-crystal X-ray dif raction and {sup 13}C and {sup 15}N MAS NMR spectroscopy. In these complexes, the metal atoms are linked in pairs by bridging dipropyldithiocarbamate ligands (Pr{sub 2}Dtc) to form tetranuclear cations and molecules. The further structural organization of compound 1 to the polymeric chains [Hg{sub 4}(S{sub 2}CNPr{sub 2}){sub 6}(NO{sub 3}){sub 2}]{sub n} occurs due to the linking of [Hg{sub 4}(S{sub 2}CNPr{sub 2}){sub 6}]{sup 2+} cations by pairs of bridging nitrate groups. The formation of the supramolecular polymeric structure of 2 is determined by pairwise secondary Hg⋯Cl bonds between the cyclic [Hg{sub 4}(S{sub 2}CNPr{sub 2}){sub 4}Cl{sub 4}] molecules, in which the central eight-membered metallocycle [Hg{sub 4}S{sub 4}] adopts a distorted chair conformation. The thermal behavior of compounds 1 and 2 was studied by simultaneous thermal analysis.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Metal-sulfide dynamics in a constructed wetland in the Southeastern United States
Not provided.
Environmental Sciences & Ecology↗
Application of Printed Circuit Board Technology to FT-ICR MS Analyzer Cell Construction and Prototyping
Although Fourier transform ion cyclotron resonance mass spectrometry (FT-ICRMS) remains themass spectrometry platform that provides the highest levels of performance for mass accuracy and resolving power, there is room for improvement in analyzer cell design as the ideal quadrupolar trapping potential has yet to be generated for a broadband MS experiment. To this end, analyzer cell designs have improved since the field’s inception, yet few research groups participate in this area because of the high cost of instrumentation efforts. As a step towards reducing this barrier to participation and allowing for more designs to be physically tested, we introduce a method of FT-ICR analyzer cell prototyping utilizing printed circuit boards at modest vacuum conditions. This method allows for inexpensive devices to be readily fabricated and tested over short intervals and should open the field to laboratories lacking or unable to access high performance machine shop facilities because of the required financial investment.
Analyzer Cell↗
Mitigating climate change through managing constructed-microbial communities in agriculture
The importance of increasing crop production while reducing resource inputs and land-use change cannot be overstated especially in light of climate change and a human population growth projected to reach nine billion this century. Here, mutualistic plant microbe interactions offer a novel approach to enhance agricultural productivity while reducing environmental costs. In concert with other novel agronomic technologies and management, plant-microbial mutualisms could help increase crop production and reduce yield losses by improving resistance and/or resilience to edaphic, biologic, and climatic variability from both bottom-up and top-down perspectives.
54 ENVIRONMENTAL SCIENCES↗
An improved ARG7-based selection cassette with highly efficient transformation rates and a small size suitable for complex expression constructs
Not Available
Nour-Eldin, Hussam Hassan↗
Machine learning-assisted surrogate construction for full-core fuel performance analysis
Not provided.
Nuclear Science & Technology↗
Construction of the conserved ζ via the effective action for perfect fluids
Not Available
Wang, Junpu↗