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140 Result(s)
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Article
High-pressure and high-temperature synthesis of MgB2 and its superconductivity
The single-phase sample of MgB2 was prepared successfully at the temperature of 900°C and under the pressure of 3 GPa. The structure of the sample was investigated using powder X-ray diffraction and Rietveld anal...
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Article
Structural stability of infinite-layer CaCuCO2 under high pressure
In situ high-pressure energy dispersive X-ray diffraction measurements on polycrystalline powder CaCuO2 with an infinite layer structure (IL CaCuO2) have been performed by using diamond anvil cell (DAC) instrumen...
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Article
Structure properties for the superconductor MgCNi3 under high pressure with synchrotron radiation
In situ high pressure energy dispersive X-ray diffraction measurements on cubic-perovskite superconductor MgCNi3 under pressure up to 22 GPa have been performed by using diamond anvil cell with s...
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Article
Structural phase transition of edge-sharing copper oxide Ca0.85CuO2 under high pressure
The perovskite-like structure compound Ca0.85-CuO2 has interesting structural properties: it has infinite one-dimensional edge-sharing copper-oxygen chains as well as partial occupancy of the Ca sites resulting i...
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Lgl, Pins and aPKC regulate neuroblast self-renewal versus differentiation
The adult mammalian brain has a remarkable regenerative capacity, a fact that sustains hopes that neuronal replacement stem-cell therapy could become a reality. How new nerve cells integrate into existing brai...
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High pressure effects on the crystal structure and electric conductivity of perovskite like (Ca/Sr)2CuO2Cl2 compounds
The crystal structure stability as well as electric conductance of (Sr/Ca)2CuO2Cl2 compound with K2NiF4 structure was investigated up to 31 GPa using diamond anvil technique. It seems that (Sr/Ca)2CuO2Cl2 is quit...
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Article
An improved approach for the application of Trombe wall system to building construction with selective thermo-insulation façades
An improved Trombe wall is proposed to adapt to building construction with selective thermo-insulation façades (internal and cavity wall insulation, but not external wall insulation system). The case study is ...
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TRIM24 links a non-canonical histone signature to breast cancer
Recognition of modified histone species by distinct structural domains within ‘reader’ proteins plays a critical role in the regulation of gene expression. Readers that simultaneously recognize histones with m...
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Article
Open AccessHighly Efficient Light-Trap** Structure Design Inspired By Natural Evolution
Recent advances in nanophotonic light trap** open up the new gateway to enhance the absorption of solar energy beyond the so called Yablonovitch Limit. It addresses the urgent needs in develo** low cost th...
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Article
Open AccessExcitation-dependent visible fluorescence in decameric nanoparticles with monoacylglycerol cluster chromophores
Organic fluorescent nanoparticles, excitation-dependent photoluminescence, hydrogen-bonded clusters and lysobisphosphatidic acid are four interesting individual topics in materials and biological sciences. The...
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Open AccessDirect Observation of Multiferroic Vortex Domains in YMnO3
Topological vortices with swirling ferroelectric, magnetic and structural anti-phase relationship in hexagonal RMnO3 (R = Ho to Lu, Y and Sc) have attracted much attention because of their intriguing behaviors. H...
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Article
Open AccessIn situ TEM Observation of Resistance Switching in Titanate Based Device
After decades of efforts, the research on resistance switching (RS) behavior in transition metal oxides has shifted to the stage of verifying the proposed models by direct experimental evidences. In this paper...
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Article
Starch grain evidence reveals early pottery function cooking plant foods in North China
Early pottery sherds excavated in northern China date back to more than 11,000 cal a BP, and are presumed to have been used as cooking vessels. There has been, however, no direct evidence to demonstrate this f...
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Article
Vegetation and climate change during Marine Isotope Stage 3 in China
Fossil pollen records from 45 sites across China were evaluated and synthesized to document vegetation and climate change during Marine Isotope Stage 3 (MIS 3) at 60–27 ka and to understand the large-scale co...
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Article
Open AccessGenetic variants in the Hippo pathway predict biochemical recurrence after radical prostatectomy for localized prostate cancer
While localized prostate cancer is potentially curative, many patients still show biochemical recurrence (BCR) after curative treatments such as radical prostatectomy (RP). The Hippo pathway has recently been ...
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Article
Open AccessMagnetic patterning: local manipulation of the intergranular exchange coupling via grain boundary engineering
Magnetic patterning, with designed spatial profile of the desired magnetic properties, has been a rising challenge for develo** magnetic devices at nanoscale. Most existing methods rely on locally modifying ...
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Article
Open AccessGenetic diversity and evolutionary dynamics of Ebola virus in Sierra Leone
The genome sequences of 175 Ebola virus from five districts in Sierra Leone, collected during September–November 2014, show that the rate of virus evolution seems to be similar to that observed during previous...
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Open AccessGenetic variants of the autophagy pathway as prognostic indicators for prostate cancer
Autophagy is a complex process of autodigestion in conditions of cellular stress and it might play an important role in the pathophysiology during carcinogenesis. We hypothesize that genetic variants of the au...
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Open AccessAblation of hippocampal neurogenesis in mice impairs the response to stress during the dark cycle
The functional role of adult neurogenesis in the hippocampus remains the subject of intense speculation. One recent hypothesis is that adult-born neurons contribute to the endocrine and behavioural outputs of ...
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Article
Erratum: Genetic diversity and evolutionary dynamics of Ebola virus in Sierra Leone
Nature 524, 93–96 (2015); doi:10.1038/nature14490 This Letter should have contained an associated Creative Commons statement in the Author Information section. In addition, the Fig. 3c legend should have state...