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79 papers found.
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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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Dietary intake and risk of rheumatoid arthritis—a cross section multicenter study

Environmental factors play an important role in the development of rheumatoid arthritis (RA). Among these factors, smoking is generally considered to be an established risk factor for RA. Data regarding the impact of diet on risk of RA development is limited. This study assessed the impact of dietary patterns on RA susceptibility in Chinese populations. This was a large scale, ...

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 ...

BRCC3 acts as a prognostic marker in nasopharyngeal carcinoma patients treated with radiotherapy and mediates radiation resistance in vitro

Background BRCC3 has been found to be aberrantly expressed in breast tumors and involved in DNA damage response. The contribution of BRCC3 to nasopharyngeal carcinoma prognosis and radiosensitivity is still unclear. Methods Immunohistochemical analysis of BRCC3 was carried out in 100 nasopharyngeal carcinoma tissues, and the protein level was correlated to patient survival. BRCC3 ...

Increased expression of miR-93 is associated with poor prognosis in head and neck squamous cell carcinoma

Guo Li Shuling Ren Zhongwu Su Chao Liu Tengbo Deng Donghai Huang Yongquan Tian Yuanzheng Qiu Yong Liu 0 ) Otolaryngology Major Disease Research Key Laboratory of Hunan Province , Changsha 410008

A critical role for STIM1 in filopodial calcium entry and axon guidance

Background Stromal interaction molecule 1 (STIM1), a Ca2+ sensor in the endoplasmic reticulum, regulates store-operated Ca2+ entry (SOCE) that is essential for Ca2+ homeostasis in many types of cells. However, if and how STIM1 and SOCE function in nerve growth cones during axon guidance remains to be elucidated. Results We report that STIM1 and transient receptor potential channel ...

Partial cardiac autotransplantation with a concomitant mitral valve, aortic valve replacement and tricuspid plasty

We describe a case with left atrial volume reduction of a giant left atrium, treated successfully by partial cardiac autotransplantation, concomitant mitral and aortic valve replacement, and tricuspid valve plasty. We obtained good results at the 1-year follow-up.

Effects of midazolam, pentobarbital and ketamine on the mRNA expression of ion channels in a model organism Daphnia pulex

Background Over the last few decades intensive studies have been carried out on the molecular targets mediating general anesthesia as well as the effects of general anesthetics. The γ-aminobutyric acid type A receptor (GABAAR) has been indicated as the primary target of general anaesthetics such as propofol, etomidate and isoflurane, and sedating drugs including benzodiazepines and ...