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85 papers found.
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Mechanism to remove oxide inclusions from molten aluminum by solid fluxes refining method

* Jian-guo Li Male, born in 1962, Associate Professor. His research interests mainly focus on the physical metallurgy of light metals. molten fluxes come into contact with oxide inclusions, they absorb the

Study of the excited \(1^-\) charm and charm–strange mesons

We give a systematical study on the recently reported excited charm and charm–strange mesons with potential \(1^-\) spin–parity, including the \(D^*_{s1}(2700)^+\), \(D^*_{s1}(2860)^+\), \(D^*(2600)^0\), \(D^*(2650)^0\), \(D^*_1(2680)^0\) and \(D^*_1(2760)^0\). The main strong decay properties are obtained in the framework of Bethe–Salpeter (BS) methods. Our results reveal that the ...

Decays of B, \(B_s\) and \(B_c\) to D-wave heavy–light mesons

We study the weak decays of \(\bar{B}_{(s)}\) and \(B_c\) into D-wave heavy–light mesons, including \(J^P=2^-\) (\(D_{(s)2},D'_{(s)2},B_{(s)2}, B'_{(s)2}\)) and \(3^-\) (\(D^*_{(s)3}, B^*_{(s)3}\)) states. The weak decay hadronic matrix elements are obtained based on the instantaneous Bethe–Salpeter method. The branching ratios for the \(\bar{B}\) decays are \(\mathcal ...

Strong decays of \(D_{3}^{*}(2760)\) , \(D_{s3}^{*}(2860)\) , \(B_{3}^{*}\) , and \(B_{s3}^{*}\)

In this paper, we study the OZI-allowed two-body strong decays of \(3^-\) heavy–light mesons. Experimentally the charmed \(D_{3}^{*}(2760)\) and the charm–strange \(D_{s3}^{*}(2860)\) states with these quantum numbers have been discovered. For the bottomed B(5970) state, which was found by the CDF Collaboration recently, its quantum number has not been decided yet and we assume it ...

The strong decays of X(3940) and X(4160)

The new mesons X(3940) and X(4160) have been found by Belle Collaboration in the processes \(e^+e^-\rightarrow J/\psi D^{(*)}{\bar{D}}^{(*)}\). Considering X(3940) and X(4160) as \(\eta _c(3S)\) and \(\eta _c(4S)\) states, the two-body open charm OZI-allowed strong decay of \(\eta _c(3S)\) and \(\eta _c(4S)\) are studied by the improved Bethe–Salpeter method combined with the ...

Downregulation of FBP1 Promotes Tumor Metastasis and Indicates Poor Prognosis in Gastric Cancer via Regulating Epithelial-Mesenchymal Transition

Background Recent studies indicated that some glycolytic enzymes are complicated, multifaceted proteins rather than simple components of the glycolytic pathway. FBP1 plays a vital role in glucose metabolism, but its role in gastric cancer tumorigenesis and metastasis has not been fully understood. Methods The prognostic value of FBP1 was first studied in The Cancer Genome Atlas ...

miR-324-3p suppresses migration and invasion by targeting WNT2B in nasopharyngeal carcinoma

Background Nasopharyngeal carcinoma (NPC) is a malignant epithelial carcinoma of the head and neck with strong ability of invasion and metastasis. Our previous study indicated that miR-324-3p, as a tumor-suppressive factor, could regulate radioresistance of NPC cells by targeting WNT2B. The purpose of this study is to investigate the role of miR-324-3p on migration and invasion in ...

D-wave charmonia \(\eta _{c2}(1^1\!D_2)\) , \(\psi _2(1^3\!D_2)\) , and \(\psi _3(1^3\!D_3)\) in \(B_c\) decays

We study the semileptonic and nonleptonic decays of \(B_c\) meson to D-wave charmonia, namely, \(\eta _{c2}(1^1\!D_2)\), \(\psi _2(1^3\!D_2)\), and \(\psi _3(1^3\!D_3)\). In our calculations, the instantaneous Bethe–Salpeter method is applied to obtain the hadronic matrix elements. This method includes relativistic corrections which are important especially for the higher orbital ...

Thermodynamic simulation on mineralogical composition of CaO–SiO2–Al2O3–MgO quaternary slag system

It is necessary to elucidate the crystallization thermodynamic of mineralogical phases during the cooling process of the molten BFS with different chemical composition, because the high-melting point mineral phase maybe crystallized during the fiber forming and thereafter cooling process. Thermodynamic calculation software FactSage6.4 and the hot remelting experiments were ...

Genome-wide analyses of long noncoding RNA expression profiles correlated with radioresistance in nasopharyngeal carcinoma via next-generation deep sequencing

Background Radioresistance is one of the major factors limiting the therapeutic efficacy and prognosis of patients with nasopharyngeal carcinoma (NPC). Accumulating evidence has suggested that aberrant expression of long noncoding RNAs (lncRNAs) contributes to cancer progression. Therefore, here we identified lncRNAs associated with radioresistance in NPC. Methods The differential ...

The electromagnetic decays of B c ± (2S)

We calculate the electromagnetic (EM) decay widths of the B c ± (2S) meson, which is observed recently by the ATLAS Collaboration. The main EM decay channels of this particle are 13 S 1 γ and 1Pγ, which, in literature, are estimated to have the branching ratio of about 1/10. In this work, we get the partial decay widths: Γ(21 S 0 → 13 S 1 γ) = 0.192 keV, Γ(21 S 0 → 1P 1 γ) = 2.24 ...

The Effects of Disturbance on Hypothalamus-Pituitary-Thyroid (HPT) Axis in Zebrafish Larvae after Exposure to DEHP

Di-(2-ethylhexyl) phthalate (DEHP) has the potential to disrupt the thyroid endocrine system, but the underlying mechanism is unknown. In this study, zebrafish (Danio rerio) embryos were exposed to different concentrations of DEHP (0, 40, 100, 200, 400 μg/L) from 2 to 168 hours post fertilization (hpf). Thyroid hormones (THs) levels and transcriptional profiling of key genes ...

Metabolic Risk Factors of Type 2 Diabetes Mellitus and Correlated Glycemic Control/Complications: A Cross-Sectional Study between Rural and Urban Uygur Residents in Xinjiang Uygur Autonomous Region

Background Diabetes is a major global public health problem driven by a high prevalence of metabolic risk factors. Objective To describe the differences of metabolic risk factors of type 2 diabetes, as well as glycemic control and complicated diabetic complications between rural and urban Uygur residents in Xinjiang Uygur Autonomous Region of China. Methods This comparative ...

The rare semi-leptonic B c decays involving orbitally excited final mesons

The rare processes \( {B}_c\to {D_{(s)}^{\left(*\right)}}_J\mu \overline{\mu} \), where D (s) (*) J stands for the final meson D s0 * (2317), D s1(2460, 2536), D s2 * (2573), D 0 * (2400), D 1(2420, 2430) or D 2 * (2460), are studied within the Standard Model. The hadronic matrix elements are evaluated in the Bethe-Salpeter approach and furthermore a discussion on the ...

The phase transformation of CuInS2 from chalcopyrite to wurtzite

In the present work, CuInS2 nanoparticles have been successfully synthesized by water-bath method with deionized water as solvent and thioglycolic acid as complexing agent at 80°C. The phase transition of CuInS2 from chalcopyrite to wurtzite was realized by adjusting the pH value of reaction solution. The emergence of Cu2S in the condition of higher pH value of reaction solution ...

Zileuton Improves Memory Deficits, Amyloid and Tau Pathology in a Mouse Model of Alzheimer’s Disease with Plaques and Tangles

The 5-lipoxygenase (5LO) enzyme is widely distributed within the central nervous system. Previous works showed that this protein is up-regulated in Alzheimer’s disease (AD), and plays an active role in the development of brain amyloidosis in the APP transgenic mice. In the present paper, we studied the effect of its pharmacological inhibition on the entire AD-like phenotype of a ...

Complete genome sequence of Salmonella enterica subspecies arizonae str. RKS2983

Salmonella arizonae (also called Salmonella subgroup IIIa) is a Gram-negative, non-spore-forming, motile, rod-shaped, facultatively anaerobic bacterium. S. arizonae strain RKS2983 was isolated from a human in California, USA. S. arizonae lies somewhere between Salmonella subgroups I (human pathogens) and V (also called S. bongori; usually non-pathogenic to humans) and so is an ...

Genetic Divergence between Camellia sinensis and Its Wild Relatives Revealed via Genome-Wide SNPs from RAD Sequencing

Tea is one of the most popular beverages across the world and is made exclusively from cultivars of Camellia sinensis. Many wild relatives of the genus Camellia that are closely related to C. sinensis are native to Southwest China. In this study, we first identified the distinct genetic divergence between C. sinensis and its wild relatives and provided a glimpse into the artificial ...

Molecular signatures associated with ZIKV exposure in human cortical neural progenitors

Zika virus (ZIKV) infection causes microcephaly and has been linked to other brain abnormalities. How ZIKV impairs brain development and function is unclear. Here we systematically profiled transcriptomes of human neural progenitor cells exposed to Asian ZIKVC, African ZIKVM, and dengue virus (DENV). In contrast to the robust global transcriptome changes induced by DENV, ZIKV has a ...

A septo-temporal molecular gradient of sfrp3 in the dentate gyrus differentially regulates quiescent adult hippocampal neural stem cell activation

Background A converging body of evidence indicates that levels of adult hippocampal neurogenesis vary along the septo-temporal axis of the dentate gyrus, but the molecular mechanisms underlying this regional heterogeneity are not known. We previously identified a niche mechanism regulating proliferation and neuronal development in the adult mouse dentate gyrus resulting from the ...