Advanced search    

Search: authors:"Cheng Peng"

48 papers found.
Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

The supersymmetric affine Yangian

Abstract The affine Yangian of gl1 is known to be isomorphic to \( {\mathcal{W}}_{1+\infty } \), the W-algebra that characterizes the bosonic higher spin — CFT duality. In this paper we propose some of the defining relations of the Yangian that are relevant for the \( \mathcal{N}=2 \) superconformal version of \( {\mathcal{W}}_{1+\infty } \). Our construction is based on the...

Influenza viral vectors expressing two kinds of HA proteins for bivalent vaccines against clade 2.3.4.4 and clade 2.3.2.1 H5 HPAIVs

, ChinaGuangyu Hou, Jinping Li, Suchun Wang, Cheng Peng, Xiaohui Yu, Jihui Jin & Wenming JiangShanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai, ChinaYan Wang AuthorsSearch for Guangyu Hou in:Nature ... Suchun Wang in:Nature Research journals • PubMed • Google Scholar Search for Cheng Peng in:Nature Research journals • PubMed • Google Scholar Search for Xiaohui Yu in:Nature Research journals • PubMed

Correlators in the \( \mathcal{N}=2 \) supersymmetric SYK model

We study correlation functions in the one-dimensional \( \mathcal{N}=2 \) supersymmetric SYK model. The leading order 4-point correlation functions are computed by summing over ladder diagrams expanded in a suitable basis of conformal eigenfunctions. A novelty of the \( \mathcal{N}=2 \) model is that both symmetric and antisymmetric eigenfunctions are required. Although we use a...

Vector models and generalized SYK models

We consider the relation between SYK-like models and vector models by studying a toy model where a tensor field is coupled with a vector field. By integrating out the tensor field, the toy model reduces to the Gross-Neveu model in 1 dimension. On the other hand, a certain perturbation can be turned on and the toy model flows to an SYK-like model at low energy. A chaotic...

Comparative analysis of miRNA expression profiles in transgenic and non-transgenic rice using miRNA-Seq

Co., Ltd, Suzhou, 215123, ChinaCongmao Wang AuthorsSearch for Cheng Peng in:Nature Research journals • PubMed • Google Scholar Search for Xiaoyun Chen in:Nature Research journals • PubMed • Google

Transplantation of adipose-derived mesenchymal stem cells attenuates pulmonary fibrosis of silicosis via anti-inflammatory and anti-apoptosis effects in rats

BackgroundSilicosis has been topping the list of high-incidence occupational diseases in developing countries and cannot be completely cured. Recent advances in stem cell research have made possible the treatment of various diseases including lung fibrosis. The application of stem cell therapy in occupational diseases, in particular the use of adipose-derived mesenchymal stem...

Role of presurgical targeted molecular therapy in renal cell carcinoma with an inferior vena cava tumor thrombus

Role of presurgical targeted molecular therapy in renal cell carcinoma with an inferior vena cava tumor thrombus Cheng Peng,1,* Liangyou Gu,1,* Lei Wang,2 Qingbo Huang,1 Baojun Wang,1 Gang Guo,1 Yang

A supersymmetric SYK-like tensor model

Abstract We consider a supersymmetric SYK-like model without quenched disorder that is built by coupling two kinds of fermionic \( \mathcal{N}=1 \) tensor-valued superfields, “quarks” and “mesons”. We prove that the model has a well-defined large-N limit in which the (s)quark 2-point functions are dominated by mesonic “melon” diagrams. We sum these diagrams to obtain the...

Higher spins and Yangian symmetries

The relation between the bosonic higher spin \( {\mathcal{W}}_{\infty}\left[\lambda \right] \) algebra, the affine Yangian of \( \mathfrak{g}{\mathfrak{l}}_1 \), and the SHc algebra is established in detail. For generic λ we find explicit expressions for the low-lying \( {\mathcal{W}}_{\infty}\left[\lambda \right] \) modes in terms of the affine Yangian generators, and deduce...

Twisted sectors from plane partitions

Twisted sectors arise naturally in the bosonic higher spin CFTs at their free points, as well as in the associated symmetric orbifolds. We identify the coset representations of the twisted sector states using the description of \( {\mathcal{W}}_{\infty } \) representations in terms of plane partitions. We confirm these proposals by a microscopic null-vector analysis, and by...

A New Strategy for Quality Evaluation and Identification of Representative Chemical Components in Polygonum multiflorum Thunb.

and data analysis. Cheng Peng, Peng Li, and Yi-tao Wang conceived the study. Yun-xia Li and Xiao-hong Gong contributed equally to this paper. Acknowledgments The study was supported by Project cofunded ... Chinese Medicine, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu 611137, China Correspondence should be addressed to Cheng

Sustainable bioenergy production with little carbon debt in the Loess Plateau of China

Background As a key strategy for mitigating global climate change, bioenergy production by reducing CO 2 emissions plays an important role in ensuring sustainable development. However, land-use change by converting natural ecosystems into energy crop field could create a carbon debt at the beginning. Thus, the potential carbon debt calculation is necessary for determining a...

The antidepressant-like effects of pioglitazone in a chronic mild stress mouse model are associated with PPARγ-mediated alteration of microglial activation phenotypes

Background Discoveries that microglia-mediated neuroinflammation is involved in the pathological process of depression provided a new strategy for novel antidepressant therapy. Peroxisome proliferator-activated receptor γ (PPARγ) is a nuclear receptor regulating inflammation and microglial polarization and, therefore, a potential target for resolving depressive disorders. Our...

Higgsing the stringy higher spin symmetry

It has recently been argued that the symmetric orbifold theory of \( {\mathbb{T}}^4 \) is dual to string theory on AdS3 × S3 × \( {\mathbb{T}}^4 \) at the tensionless point. At this point in moduli space, the theory possesses a very large symmetry algebra that includes, in particular, a \( \mathcal{W} \) ∞ algebra capturing the gauge fields of a dual higher spin theory. Using...

Development of a qualitative real-time PCR method to detect 19 targets for identification of genetically modified organisms

As the amount of commercially available genetically modified organisms (GMOs) grows recent years, the diversity of target sequences for molecular detection techniques are eagerly needed. Considered as the gold standard for GMO analysis, the real-time PCR technology was optimized to produce a high-throughput GMO screening method. With this method we can detect 19 transgenic...

Extended supersymmetry in AdS3 higher spin theories

We determine the asymptotic symmetry algebra (for fields of low spin) of the M × M matrix extended Vasiliev theories on AdS3 and find that it agrees with the \( \mathcal{W} \)-algebra of their proposed coset duals. Previously it was noticed that for M = 2 the supersymmetry increases from \( \mathcal{N}=2 \) to \( \mathcal{N}=4 \). We study more systematically this type of...

Structural heterogeneity and functional diversity of topologically associating domains in mammalian genomes

Recent chromosome conformation capture (3C) derived techniques have revealed that topologically associating domain (TAD) is a pervasive element in chromatin three-dimensional (3D) organization. However, there is currently no parameter to quantitatively measure the structural characteristics of TADs, thus obscuring our understanding on the structural and functional differences...

The symmetry of large \( \mathcal{N} \) = 4 holography

For the proposed duality relating a family of \( \mathcal{N} \) = 4 superconformal coset models to a certain supersymmetric higher spin theory on AdS3, the asymptotic symmetry algebra of the bulk description is determined. It is shown that, depending on the choice of the boundary charges, one may obtain either the linear or the non-linear superconformal algebra on the boundary...

Micronucleus formation by single and mixed heavy metals/loids and PAH compounds in HepG2 cells

Humans and other organisms are exposed to multi-chemical mixtures including commonly found carcinogens such as polycyclic aromatic hydrocarbons (PAHs) and heavy metal/loids. The joint effects of these chemicals as beyond the binary mixtures have not been well characterised. In this study, we evaluated the combined genotoxicity of mixtures of PAHs and heavy metal/loids containing...