428 Result(s)
within
Yingying **e
Science, Humanities and Social Sciences, multidisciplinary
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Article
New synthesis of amphiphilic copolymers PE-g-PEO via esterfication
A new series of high molecular weight amphiphilic graft copolymers PE-g-PEO has been prepared. The esterifications between PE-p-MS-g-MA and PEO with OH group at the chain end are carried out under different condi...
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Novel approach to synthesizing poly(propylene)-graft-poly(styrene) (PP-g-PS)
A novel synthetic route used for preparing PP-g-PS was designed. With this synthetic route, a series of graft copolymers with different contents of PS chain were synthesized successfully, and characterized by13C-...
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Self-adjusted elastic action and its CBM pool-forming effect of the high rank coal reservoir
The coal reservoir is a kind of geologic body with considerable elasticity, and its response to stress is more sensitive than the routine ones. In the pool-forming process of the coalbed methane, (CBM) the act...
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Article
Voltage-sensor activation with a tarantula toxin as cargo
The opening and closing of voltage-activated Na+, Ca2+ and K+ (Kv) channels underlies electrical and chemical signalling throughout biology, yet the structural basis of voltage sensing is unknown. Hanatoxin is a ...
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Article
SIV infection in wild gorillas
HIV 1 group M, the AIDS pandemic virus, was traced to a single cross-over of simian immunodeficiency virus from chimpanzees in west central Africa. Cross-over from the same reservoir led to the infection of a ...
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Increased mortality and AIDS-like immunopathology in wild chimpanzees infected with SIVcpz
There are more than 40 different types of simian immunodeficiency virus (SIV) infecting African primates, two of which crossed the species barrier to produce the AIDS viruses HIV-1 and HIV-2 in humans. Now a c...
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Origin of the human malaria parasite Plasmodium falciparum in gorillas
Plasmodium falciparum is the most prevalent and lethal of the malaria parasites infecting humans, yet the origin and evolutionary history of this important pathogen remain controversial. Here we develop a single-...
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Mixed-Type Reverse-Order Laws for the Generalized Inverses of an Operator Product
In this paper, we study mixed-type reverse-order laws for the Moore–Penrose inverse of an operator product AB, and obtain necessary and sufficient conditions for these mixed-type reverse-order laws. Results relat...
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Open AccessThermodynamic determination of fragility in La-based glass-forming liquid
Differences in the thermodynamic functions between the liquid and crystalline states of La-based bulk metallic glasses alloys were calculated with the specific heat capacity C p and the fu...
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Electronic origin of high-temperature superconductivity in single-layer FeSe superconductor
The recent discovery of high-temperature superconductivity in iron-based compounds has attracted much attention. How to further increase the superconducting transition temperature (Tc) and how to understand the s...
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Open AccessSynthesis of chiral TiO2 nanofibre with electron transition-based optical activity
The optical chirality induced at the absorption bands due to electronic exciton coupling of the transition dipole moments between chromophores in close proximity is ubiquitous in helical organic materials. How...
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Association study of a common variant near IRS1 with type 2 diabetes mellitus in Chinese Han population
The insulin receptor substrate-1 (IRS1) plays an important role in insulin signaling. A recent genome-wide association study identified rs2943641C>T as a susceptibility locus for type 2 diabetes mellitus (T2DM) i...
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Article
Optical visualization of individual ultralong carbon nanotubes by chemical vapour deposition of titanium dioxide nanoparticles
Direct visualization and manipulation of individual carbon nanotubes in ambient conditions is of great significance for their characterizations and applications. However, the observation of individual carbon n...
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Open AccessHigh-performance flexible electrochromic device based on facile semiconductor-to-metal transition realized by WO3·2H2O ultrathin nanosheets
Ultrathin nanosheets are considered as one kind of the most promising candidates for the fabrication of flexible electrochromic devices (ECDs) due to their permeable channels, high specific surface areas and g...
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Open AccessTunable Dirac Fermion Dynamics in Topological Insulators
Three-dimensional topological insulators are characterized by insulating bulk state and metallic surface state involving relativistic Dirac fermions which are responsible for exotic quantum phenomena and poten...
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Open AccessConstruction of Streptomyces lydicus A01 transformant with the chit33 gene from Trichoderma harzianum CECT2413 and its biocontrol effect on Fusaria
Streptomyces lydicus A01 resists many plant pathogens (including Fusarium spp.) by producing the antifungal agent natamycin, which binds to the ergosterol of fungal cell membranes and inhibits th...
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Disappearance of nodal gap across the insulator–superconductor transition in a copper-oxide superconductor
The parent compound of the copper-oxide high-temperature superconductors is a Mott insulator. Superconductivity is realized by do** an appropriate amount of charge carriers. How a Mott insulator transforms i...
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Open AccessInvestigation of the consistency of atmospheric CO2 retrievals from different space-based sensors: Intercomparison and spatiotemporal analysis
In recent years, global warming caused by emission of CO2 has attracted considerable attention from the public. Although the measurements from AIRS, GOSAT, SCIAMACHY and IASI have been frequently used to derive a...
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Open AccessTSP1-producing B cells show immune regulatory property and suppress allergy-related mucosal inflammation
Specific immunotherapy (SIT) is the only specific remedy for the treatment of allergic diseases currently. B cells are important immune cells in the immunity. The role of B cells in immune regulatory activitie...
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Structural basis for hijacking CBF-β and CUL5 E3 ligase complex by HIV-1 Vif
This study provides a crystal structure of the Vif–CBF-β–CUL5–ELOB–ELOC complex, which shows that Vif mimics the action of SOCS2 to interact with CUL5 and ELOC.
