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Entanglement and chaos in warped conformal field theories

Abstract Various aspects of warped conformal field theories (WCFTs) are studied including entanglement entropy on excited states, the Rényi entropy after a local quench, and out-of-time-order four-point functions. Assuming a large central charge and dominance of the vacuum block in the conformal block expansion, (i) we calculate the single-interval entanglement entropy on an...

Strings on warped AdS3 via \( \mathrm{T}\overline{\mathrm{J}} \) deformations

Abstract We study a toy model of the Kerr/CFT correspondence using string theory on AdS3 × S3. We propose a single trace irrelevant deformation of the dual CFT generated by a vertex operator with spacetime dimensions (2, 1). This operator shares the same quantum numbers as the integrable \( T\overline{J} \) deformation of two-dimensional CFTs where \( \overline{J} \) is a chiral...

Factors influencing power consumption and power-saving measures in ESR process

Since the USA patent of electroslag remelting (ESR) metallurgy was held by P. K. Hopkins in 1940, the ESR technology has now entered a relatively mature stage after a 70-year history of development. At present, the annual capacity of ESR steels around the world is approximately 2 million tonnes. ESR metallurgy emerged in China in 1958. Since then, electroslag furnaces were...

Violent scene detection algorithm based on kernel extreme learning machine and three-dimensional histograms of gradient orientation

Most existing feature descriptors for video have limited representation ability. In order to improve the recognition accuracy of method for detecting the videos that include violent scenes and take advantage of the logical structure of video sequences, a novel feature constructing approach based on three dimensional histograms of gradient orientation (HOG3D), the Bag of Visual...

Bootstrapping holographic warped CFTs or: how I learned to stop worrying and tolerate negative norms

Abstract We use modular invariance to derive constraints on the spectrum of warped conformal field theories (WCFTs) — nonrelativistic quantum field theories described by a chiral Virasoro and U(1) Kac-Moody algebra. We focus on holographic WCFTs and interpret our results in the simplest holographic set up: three dimensional gravity with Compère-Song-Strominger boundary conditions...

Classifying 3D objects in LiDAR point clouds with a back-propagation neural network

. Keywords3D object recognition Back-propagation neural network Feature extraction LiDAR point cloud  Wei Song, Shuanghui Zou, Yifei Tian, Simon Fong and Kyungeun Cho contributed equally to this work

Taking advantage of motif matrix inference for rotated image indexing and retrieval

With the rapid development of information technology, the sizes of digital libraries become larger and larger. How to quickly and effectively search the desired images in huge digital libraries becomes the challenge needed to resolve with high priority. In this study, we firstly propose two motif-based matrices, i.e., the motif average matrix (MAM) and motif excessive matrix (MEM...

Hydroxyapatite extracted by animal bone image analysis in ionic liquid choline chloride-glycerol

In this paper, the dissolving process of animal bone (chicken bone) in ionic liquid (IL) choline chloride-glycerol (ChCl-GL) was researched, and the product hydroxyapatite (HAp) was extracted. The optimum conditions of extracted HAp were determined by single factor, orthogonal, and verification tests. Based on dissolving situation of observing bone power in the IL by means of...

Pulmonary high-resolution computed tomography findings in patients with synovitis, acne, pustulosis, hyperostosis and osteitis syndrome

Sui, Jian Wang, Wei Song, Wenshuai Xu. Formal analysis: Shuang Liu, Xinlun Tian, Wen Zhang. Funding acquisition: Chen Li, Kai-Feng Xu. Investigation: Chen Li, Shuang Liu, Xin Sui, Jian Wang, Wei Song ... ? review & editing: Chen Li, Shuang Liu, Xin Sui, Jian Wang, Wei Song, Wenshuai 9 / 10 Arthritis Rheum. 2009; 61(6):813?21. Epub 2009/05/30. https://doi.org/10.1002/art.24540 PMID: 19479702. 1. Chamot AM

Correlation functions of warped CFT

Abstract Warped conformal field theory (WCFT) is a two dimensional quantum field theory whose local symmetry algebra consists of a Virasoro algebra and a U(1) Kac-Moody algebra. In this paper, we study correlation functions for primary operators in WCFT. Similar to conformal symmetry, warped conformal symmetry is very constraining. The form of the two and three point functions...

Grassland ecosystem responses to climate change and human activities within the Three-River Headwaters region of China

Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, ChinaZe Han, Wei Song & Xiangzheng DengCenter for Chinese Agricultural Policy, Chinese Academy of Sciences, Beijing, 100101 ... AuthorsSearch for Ze Han in:Nature Research journals • PubMed • Google Scholar Search for Wei Song in:Nature Research journals • PubMed • Google Scholar Search for Xiangzheng Deng in:Nature Research journals

The Effect of Marital Status on Survival of Patients with Gastrointestinal Stromal Tumors: A SEER Database Analysis

. Conflicts of Interest The authors declare no conflicts of interest. Authors? Contributions Wei Song and Chuan Tian conceived and designed the study, searched the databases and collected the data, analyzed

An amine oxidase gene from mud crab, Scylla paramamosain, regulates the neurotransmitters serotonin and dopamine in vitro

Amine oxidase, which participates in the metabolic processing of biogenic amines, is widely found in organisms, including higher organisms and various microorganisms. In this study, the full-length cDNA of a novel amine oxidase gene was cloned from the mud crab, Scylla paramamosain, and termed SpAMO. The cDNA sequence was 2,599 bp in length, including an open reading frame of 1...

PD-L1 Expression and CD8

conflict of interest regarding the publication of this paper. Authors’ Contributions Yangyang Wang, Chunchao Zhu, and Wei Song share co-first authorship. Acknowledgments The authors thank all members of the

Nomogram for predicting survival in patients with pancreatic cancer

Nomogram for predicting survival in patients with pancreatic cancer  Wei Song, Dong-Liu Miao, Lei Chen Department of Intervention and Vascular Surgery, Affiliated Suzhou Hospital of Nanjing Medical

Irf6 directs glandular lineage differentiation of epidermal progenitors and promotes limited sweat gland regeneration in a mouse burn model

BackgroundDamaged or malfunctioning sweat glands (SGs) after a burn injury would cause significant hyperthermia and even death, and there is an unmet need for effective treatment. Genetically reprogrammed stem cells show their potential advantages for inducing SG repair and regeneration.MethodsThe expression of interferon regulatory factor 6 (IRF6) in skin was tested by...

Metabolomic alterations associated with Behçet’s disease

The diagnosis of Behçet’s disease (BD) remains challenging due to the lack of diagnostic biomarkers. This study aims to identify potential serum metabolites associated with BD and its disease activity. Medical records and serum samples of 24 pretreated BD patients, 12 post-treated BD patients, and age-matched healthy controls (HC) were collected for metabolomics and lipidomics...

Overexpression of modified human TRβ1 suppresses the growth of hepatocarcinoma SK-hep1 cells in vitro and in xenograft models

Association studies suggest that TRβ1 functions as a tumor suppressor. Thyroid hormone receptors (TRs) mediate transcriptional responses through a highly conserved DNA-binding domain (DBD). We previously constructed an artificially modified human TRβ1 (m-TRβ1) via the introduction of a 108-bp exon sequence into the corresponding position of the wild-type human TRβ1 (TRβ1) DBD...

Development and Evaluation of Novel Statistical Methods in Urine Biomarker-Based Hepatocellular Carcinoma Screening

Hepatocellular carcinoma is one of the fastest growing cancers in the US and has a low survival rate, partly due to difficulties in early detection. Because of HCC’s high heterogeneity, it has been suggested that multiple biomarkers would be needed to develop a sensitive HCC screening test. This study applied random forest (RF), a machine learning technique, and proposed two...