263 Result(s)
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Open AccessDual-polarity plasmonic metalens for visible light
Surface topography and refractive index profile dictate the deterministic functionality of a lens. The polarity of most lenses reported so far, that is, either positive (convex) or negative (concave), depends ...
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Open AccessThe genome of Mesobuthus martensii reveals a unique adaptation model of arthropods
Representing a basal branch of arachnids, scorpions are known as ‘living fossils’ that maintain an ancient anatomy and are adapted to have survived extreme climate changes. Here we report the genome sequence of M...
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Open AccessThree-dimensional optical holography using a plasmonic metasurface
Benefitting from the flexibility in engineering their optical response, metamaterials have been used to achieve control over the propagation of light to an unprecedented level, leading to highly unconventional...
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Open AccessmGlu5 receptors and cellular prion protein mediate amyloid-β-facilitated synaptic long-term depression in vivo
NMDA-type glutamate receptors (NMDARs) are currently regarded as paramount in the potent and selective disruption of synaptic plasticity by Alzheimer’s disease amyloid β-protein (Aβ). Non-NMDAR mechanisms rema...
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Open AccessUnpinning of rotating spiral waves in cardiac tissues by circularly polarized electric fields
Spiral waves anchored to obstacles in cardiac tissues may cause lethal arrhythmia. To unpin these anchored spirals, comparing to high-voltage side-effect traditional therapies, wave emission from heterogeneiti...
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Open AccessLayer-dependent Band Alignment and Work Function of Few-Layer Phosphorene
Using first-principles calculations, we study the electronic properties of few-layer phosphorene focusing on layer-dependent behavior of band gap, work function band alignment and carrier effective mass. It is...
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Open AccessEffect of supersaturation on hillock of directional Growth of KDP crystals
KDP single crystals were grown in aqueous solution by using “point seeds” with a defined crystallographic direction of 59° to the Z axis. When hillock slopes on the (100) face of KDP crystals were measured wit...
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Open AccessAssociation Between MTHFR Polymorphisms and Congenital Heart Disease: A Meta-analysis based on 9,329 cases and 15,076 controls
The aim of our study was to evaluate the association between polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) gene and the risk for congenital heart disease (CHD). Electronic literature databases ...
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Open AccessAn ignored variable: solution preparation temperature in protein crystallization
Protein crystallization is affected by many parameters, among which certain parameters have not been well controlled. The temperature at which the protein and precipitant solutions are mixed (i.e., the ambient...
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Open AccessUnusual ferromagnetic critical behavior owing to short-range antiferromagnetic correlations in antiperovskite Cu1-xNMn3+x (0.1 ≤ x ≤ 0.4)
For ferromagnets, varying from simple metals to strongly correlated oxides,the critical behaviors near the Curie temperature (TC) can be grouped into several universal classes. In this paper, we report an unusual...
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Open AccessGenetic polymorphism analyses of 30 InDels in Chinese **be ethnic group and its population genetic differentiations with other groups
In the present study, we obtained population genetic data and forensic parameters of 30 InDel loci in Chinese **be ethnic group from northwestern China and studied the genetic relationships between the studied...
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Open AccessA Lower pH Value Benefits Regeneration of Trichosanthes kirilowii by Somatic Embryogenesis, Involving Rhizoid Tubers (RTBs), a Novel Structure
A new approach was established for the regeneration of Trichosanthes kirilowii from root, stem and leaf explants by somatic embryogenesis (SE), involving a previously unreported SE structure, rhizoid tubers (RTBs...
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Open AccessGenetic Variability and Phylogenetic Analysis of Han Population from Guanzhong Region of China based on 21 non-CODIS STR Loci
In the present study, we presented the population genetic data and their forensic parameters of 21 non-CODIS autosomal STR loci in Chinese Guanzhong Han population. A total of 166 alleles were observed with co...
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Open AccessDecreased LKB1 predicts poor prognosis in Pancreatic Ductal Adenocarcinoma
Liver kinase B1 (LKB1) has been identified as a critical modulator involved in cell proliferation and polarity. The purpose of the current study was to characterize the expression pattern of LKB1 and assess th...
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Open AccessL-citrulline for protection of endothelial function from ADMA–induced injury in porcine coronary artery
Endogenous nitric oxide synthase (eNOS) inhibitor asymmetric dimethylarginine (ADMA) is a cardiovascular risk factor. We tested the hypothesis that L-citrulline may ameliorate the endothelial function altered ...
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Open AccessForward genetic screen for auxin-deficient mutants by cytokinin
Identification of mutants with impairments in auxin biosynthesis and dynamics by forward genetic screening is hindered by the complexity, redundancy and necessity of the pathways involved. Furthermore, althoug...
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Open AccessDetermination of band alignment in the single-layer MoS2/WSe2 heterojunction
The emergence of two-dimensional electronic materials has stimulated proposals of novel electronic and photonic devices based on the heterostructures of transition metal dichalcogenides. Here we report the det...
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Open AccessTwo-dimensional van der Waals C60 molecular crystal
Two-dimensional (2D) atomic crystals, such as graphene and transition metal dichalcogenides et al. have drawn extraordinary attention recently. For these 2D materials, atoms within their monolayer are covalently ...
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Open AccessMolecular mobility on graphene nanoroads
We study molecular mobility on a graphene nanoroad (GNRD), a pristine graphene strip embedded in between two hydrogenated graphene domains serving as a nanoscale pathway for transporting admolecules. Our molec...
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Open AccessCoumarin derivatives from Ainsliaea fragrans and their anticoagulant activity
Coumarin derivatives are an important class of C6–C3 plant metabolites that show a variety of bioactivities. Currently, most clinical anticoagulant agents are coumarins, such as warfarin, dicoumarol and acenocoum...
