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TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission Performance

Highly ordered TiO2 nanotube (TNT) arrays were successfully synthesized by the combination of soft and hard templates. In the fabrication of them, anodic aluminum oxide membranes act as the hard template while the self-assembly of polystyrene-block-poly(ethylene oxide) (PS-b-PEO) complexed with titanium-tetraisopropoxide (TTIP, the precursor of TiO2) provides the soft template to...

In-hospital free fatty acids levels predict the severity of myocardial ischemia of acute coronary syndrome

Background We aimed to assess whether the levels of FFAs (free fatty acids) in ACS (acute coronary syndrome) patients depend on the extent of myocardial ischemia during the subacute phase of ACS attack. Methods A total of 892 consecutive CAD (coronary artery disease) subjects undergoing coronary angiography were enrolled. The FFAs contents were measured based on enzymatic assay...

Polymorphisms in FADS1 and FADS2 alter plasma fatty acids and desaturase levels in type 2 diabetic patients with coronary artery disease

Background To explore whether plasma fatty acids and SNPs in the fatty acid desaturase (FADS) gene associated with type 2 diabetes (T2D) and coronary artery disease (CAD). Methods In this cross-sectional study, we utilized gas chromatography–mass spectrometric analysis and the high-resolution melting method to detect plasma fatty acids and SNPs respectively (rs174537G>T...

Long non-coding RNA TUG1 is up-regulated in hepatocellular carcinoma and promotes cell growth and apoptosis by epigenetically silencing of KLF2

Background Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related death worldwide, and the biology of this cancer remains poorly understood. Recent evidence indicates that long non-coding RNAs (lncRNAs) are found to be dysregulated in a variety of cancers, including HCC. Taurine Up-regulated Gene 1 (TUG1), a 7.1-kb lncRNA, recruiting and binding to polycomb...

Galaxy-scale outflows driven by active galactic nuclei

We present hydrodynamical simulations of major mergers of galaxies and study the effects of winds produced by active galactic nuclei (AGN) on interstellar gas in the AGN’s host galaxy. We consider winds with initial velocities ∼10 000 km s−1 and an initial momentum (energy) flux of ∼τw L/c (∼ 0.01 τw L), with . The AGN wind sweeps up and shock heats the surrounding interstellar...

Human-like collagen protein-coated magnetic nanoparticles with high magnetic hyperthermia performance and improved biocompatibility

Human-like collagen (HLC)-coated monodispersed superparamagnetic Fe3O4 nanoparticles have been successfully prepared to investigate its effect on heat induction property and cell toxicity. After coating of HLC, the sample shows a faster rate of temperature increase under an alternating magnetic field although it has a reduced saturation magnetization. This is most probably a...

The efficiency of magnetic hyperthermia and in vivo histocompatibility for human-like collagen protein-coated magnetic nanoparticles

,1 He Ping Ma,1 Qiu Ying Liu,1 Pei Ma,1 Wei Ming Xue,1 Yan E Luo,1 Hai Ming Fan1,3 1Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University

Association between serum free fatty acid levels and possible related factors in patients with type 2 diabetes mellitus and acute myocardial infarction

Zhi-Hua Lv 0 Pei Ma 0 Wan Luo Hui Xiong Lu Han Si-Wei Li Xin Zhou Jian-Cheng Tu 0 Equal contributors Department of Clinical Laboratory Medicine and Center for Gene Diagnosis, Zhongnan Hospital of

Dark matter halo growth – II. Diffuse accretion and its environmental dependence

Onsi Fakhouri 0 Chung-Pei Ma 0 0 Department of Astronomy , 601 Campbell Hall , University of California , Berkeley, CA 94720 , USA Dark matter haloes in CDM simulations grow by mergers with other

The growth of massive black holes in galaxy merger simulations with feedback by radiation pressure

We study the growth of massive black holes (BHs) in galaxies using smoothed particle hydrodynamic simulations of major galaxy mergers with new implementations of BH accretion and feedback. The effect of BH accretion on gas in its host galaxy is modelled by depositing momentum at the rate of ∼τL/c into the ambient gas, where L is the luminosity produced by accretion on to the BH...

Evaluation of the content variation of anthraquinone glycosides in rhubarb by UPLC-PDA

Background Rhubarb is an important Chinese medicinal herb with a long history of over 2000 years and has been commonly used as a laxative. It is the radix and rhizome of Rheum officinale Baill., R. palmatum L. and R. tanguticum Maxim, all of which are mainly distributed in a broad region in the Tibetan plateau. Anthraquinone glycosides are a series of major active ingredients...

Environmental dependence of dark matter halo growth – I. Halo merger rates

In an earlier paper, we quantified the mean merger rate of dark matter haloes as a function of redshift z, descendant halo mass M0, and progenitor halo mass ratio ξ using the Millennium simulation of the Λ cold dark matter cosmology. Here, we broaden that study and investigate the dependence of the merger rate of haloes on their surrounding environment. A number of local mass...

The baryonic assembly of dark matter haloes

We use a suite of cosmological hydrodynamic simulations to systematically quantify the accretion rates of baryons into dark matter haloes and the resulting baryon mass fractions, as a function of halo mass, redshift and baryon type (including cold and hot gas). We find that the net baryonic accretion rates through the virial radius are sensitive to galactic outflows and explore a...

The nearly universal merger rate of dark matter haloes in ΛCDM cosmology

Onsi Fakhouri 0 Chung-Pei Ma 0 0 Department of Astronomy , 601 Campbell Hall , University of California , Berkeley, CA 94720 , USA A B S T R A C T We construct merger trees from the largest data

Mass accretion rates and histories of dark matter haloes

We use the extensive catalogue of dark matter haloes from the Millennium Simulation to investigate the statistics of the mass accretion histories (MAHs) and accretion rates of ∼500 000 haloes from redshift z= 0 to 6. We find only about 25 per cent of the haloes to have MAHs that are well described by a 1-parameter exponential form. For the rest of the haloes, between 20 per cent...

The bias and mass function of dark matter haloes in non-Markovian extension of the excursion set theory

The excursion set theory based on spherical or ellipsoidal gravitational collapse provides an elegant analytic framework for calculating the mass function and the large-scale bias of dark matter haloes. This theory assumes that the perturbed density field evolves stochastically with the smoothing scale and exhibits Markovian random walks in the presence of a density barrier. Here...

The merger rates and mass assembly histories of dark matter haloes in the two Millennium simulations

Onsi Fakhouri 1 Chung-Pei Ma 1 0 Max-Planck Institut fu r Astrophysik , Karl-Schwarzschild-Str. 1, 85748 Garching , Germany 1 Department of Astronomy , 601 Campbell Hall , University of California

When should we treat galaxies as isolated?

Traditionally, secular evolution is defined as evolution of systems where the internal growth of structure and instabilities dominates the growth via external drivers (e.g. accretion and mergers). Most study has focused on ‘isolated’ galaxies, where seed asymmetries may represent realistic cosmological substructure, but subsequent evolution ignores galaxy growth and interactions...

De novo characterization of the root transcriptome of a traditional Chinese medicinal plant Polygonum cuspidatum

Various active components have been extracted from the root of Polygonum cuspidatum. However, the genetic basis for their activity is virtually unknown. In this study, 25600002 short reads (2.3 Gb) of P. cuspidatum root transcriptome were obtained via Illumina HiSeq 2000 sequencing. A total of 86418 unigenes were assembled de novo and annotated. Twelve, 18, 60 and 54 unigenes...

Satellite accretion on to massive galaxies with central black holes

Chung-Pei Ma 0 0 Department of Astronomy, University of California , Berkeley, CA 94720, USA 1 Department of Physics, University of California , Berkeley, CA 94720, USA A B S T R A C T Minor mergers