410 Result(s)
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Article
Activating transcription factor 5 regulates lipid metabolism in adipocytes
Activating transcription factor 5 (ATF5) is a member of the activating transcription factor/cAMP response element binding protein (ATF/CREB) family, and is highly expressed in liver and adipose tissue. Previou...
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Article
Recombination function and recombination kinetics of Escherichia coli single-stranded DNA-binding protein
It is unknown whether the ssDNA-binding-protein (SSB) possesses the ability to catalyze DNA recombination. We investigated the recombination function of SSB and the recombination kinetics of Escherichia coli usin...
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Nodeless pairing in superconducting copper-oxide monolayer films on Bi2Sr2CaCu2O8+δ
The pairing mechanism of high-temperature superconductivity in cuprates remains the biggest unresolved mystery in condensed matter physics. To solve the problem, one of the most effective approaches is to inv...
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Article
The effect of neighbor distance of magnetic nanoparticle clusters on magnetic resonance relaxation properties
Superparamagnetic iron oxide (SPIO) nanoparticle clusters are one unique form which can enhance magnetic relaxivity and improve the magnetic resonance imaging contrast at the same iron concentration, comparing...
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Article
Nanocarbon-based TEMPO as stable heterogeneous catalysts for partial oxidation of alcohols
Polymerized fullerene hollow spheres bonded with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) have been successfully synthesized via amination of C60 with 4-amino-TEMPO in the presence of H2O2, and then cross-lin...
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Article
Decadal changes of the wintertime tropical tropospheric temperature and their influences on the extratropical climate
A decadal change of the tropical tropospheric temperature (TT) was identified to occur in the winter of 1997. Compared with that in the former period (1979–1996), the wintertime TT was significantly high over ...
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Article
The effect of nitrogen annealing on lithium ion intercalation in nickel-doped lithium trivanadate
The communication reports an exploratory experimental study on the effects of nitrogen annealing on lithium ion intercalation in nickel-doped lithium trivanadate cathodic electrodes for lithium ion batteries. ...
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A label-free colorimetric assay for detection of c-Myc mRNA based on peptide nucleic acid and silver nanoparticles
A label-free colorimetric protocol based on peptide nucleic acid/silver nanoparticles (PNA/AgNPs) has been initially proposed for specific recognition of mRNA. Making use of the controlled silver nanoparticles...
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Iron-based composite nanostructure catalysts used to produce CO x -free hydrogen from ammonia
Iron-based composite nanostructures with ceria or titania as shell coating on naked iron spheres were successfully synthesized and used to catalyze ammonia decomposition. The structure and texture of fresh an...
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Article
2D materials via liquid exfoliation: a review on fabrication and applications
Since graphene was discovered, the study of two-dimensional (2D) materials with atomic thickness has become a hot spot. To prepare different 2D materials, different methods have been groped, such as mechanica...
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Article
Reprogramming mature terminally differentiated adipocytes to induced pluripotent stem cells
Mature adipocytes are terminally differentiated somatic cells. Here, we report the successful generation of induced pluripotent stem (iPS) cells from mouse mature adipocytes by forced expression of six transc...
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Divergence of tree-ring-based drought reconstruction between the individual sampling site and the Monsoon Asia Drought Atlas: an example from Guancen Mountain
To evaluate the applicability of the Standardized Precipitation-Evapotranspiration Index (SPEI) and the self-calibrated Palmer Drought Severity Index (scPDSI) to paleoclimate reconstructions in the east Asian...
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Article
Exotic origin of the Chinese continental shelf
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Article
Gold carbene chemistry from diazo compounds
Diazo compounds are generally used as carbene precursors. Traditionally, dirhodium, copper and iron catalysts were used to decompose diazo compounds to form the key metal carbene intermediates. Recently, the g...
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Multifunctional dextran micelles as drug delivery carriers and magnetic resonance imaging probes
Multifunctional nanoparticles combining diagnostic and therapeutic agents into a single platform make cancer theranostics possible and have attracted wide interests in the field. In this study, a multifunctio...
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Onset of the Meissner effect at 65 K in FeSe thin film grown on Nb-doped SrTiO3 substrate
We report the Meissner effect studies on an FeSe thin film grown on Nb-doped SrTiO3 substrate by molecular beam epitaxy. Two-coil mutual inductance measurement clearly demonstrates the onset of diamagnetic screen...
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Article
Shifts in water-level variation of Namco in the central Tibetan Plateau from ICESat and CryoSat-2 altimetry and station observations
The dynamics of high-altitude inland lakes in the Tibetan Plateau are sensitive indicators of climate change. Due to the remoteness and hard access, satellite altimetry becomes an effective approach to obtaini...
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Article
Specially shaped Bessel-like self-accelerating beams along predesigned trajectories
Over the past several years, spatially shaped self-accelerating beams along different trajectories have been studied extensively. Due to their useful properties such as resistance to diffraction, self-healing,...
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Fabrication of superstable gold nanorod–carbon nanocapsule as a molecule loading material
In this work, we fabricated a monodisperse nanocomposite by coating gold nanorods (AuNRs) with a layer of biocompatible, stable carbon, obtaining AuNR@Carbon core–shell nanocapsules, which without any function...
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Article
Hierarchical SnO2 nanoflowers assembled by atomic thickness nanosheets as anode material for lithium ion battery
Hierarchical SnO2 nanoflowers assembled by atomic thickness nanosheets were prepared by facile one-pot solvothermal method with acetone/water mixture as solvent. The crystal structure, morphology and the microstr...