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CHY formulae in 4d

helicity. If the 4d jacobian Jn;k0 is also positive at the positive region, it strongly supports that the YM amplitude is also positive in some regions. Acknowledgments Yong Zhang thanks S. He and F. Teng

Labelled tree graphs, Feynman diagrams and disk integrals

In this note, we introduce and study a new class of “half integrands” in Cachazo-He-Yuan (CHY) formula, which naturally generalize the so-called Parke-Taylor factors; these are dubbed Cayley functions as each of them corresponds to a labelled tree graph. The CHY formula with a Cayley function squared gives a sum of Feynman diagrams, and we represent it by a combinatoric polytope ...

Science and technology in high-entropy alloys

Weiran Zhang Peter K. Liaw Yong Zhang As human improve their ability to fabricate materials, alloys have evolved from simple to complex compositions, accordingly improving functions and performances ... , edited more than 30 books. Yong Zhang has been a full professor of the USTB & State Key Laboratory for Advanced Metals and Materials since 2004. He attained his Bachelor degree at Yanshan University in

Identification and expression analyses of WRKY genes reveal their involvement in growth and abiotic stress response in watermelon (Citrullus lanatus)

Yang, Yongqi Wang. Funding acquisition: Yong Zhang, Jianxiang Ma, Chunhua Wei, Xian Zhang. Investigation: Yongqi Wang, Yanling Mo. Methodology: Xiaozhen Yang, Hao Li. Project administration: Chunhua ... Wei, Xian Zhang. Resources: Yong Zhang, Jianxiang Ma, Xian Zhang. Software: Xiaozhen Yang, Chunhua Wei. Supervision: Hao Li, Chunhua Wei. Validation: Yong Zhang, Jianxiang Ma, Xian Zhang

Einstein-Gauss-Bonnet black strings at large D

We study the black string solutions in the Einstein-Gauss-Bonnet(EGB) theory at large D. By using the 1/D expansion in the near horizon region we derive the effective equations that describe the dynamics of the EGB black strings. The uniform and non-uniform black strings are obtained as the static solutions of the effective equations. From the perturbation analysis of the effective ...

The impact of rainfall on the temporal and spatial distribution of taxi passengers

from that conference and from the journal PLOS ONE for their help in improving this paper. Author Contributions Formal analysis: Liangpeng Gao. Methodology: Yong Zhang. Project administration: Yong ... Zhang. Software: Nana Geng, Xuefeng Li. Visualization: Liangpeng Gao. Writing ± original draft: Dandan Chen. Writing ± review & editing: Dandan Chen. 14 / 16 15 / 16 1. Singhal A , Kamga C , Yazici

Connected formulas for amplitudes in standard model

Witten’s twistor string theory has led to new representations of S-matrix in massless QFT as a single object, including Cachazo-He-Yuan formulas in general and connected formulas in four dimensions. As a first step towards more realistic processes of the standard model, we extend the construction to QCD tree amplitudes with massless quarks and those with a Higgs boson. For both ...

Correction to: A push–pull strategy to control aphids combines intercropping with semiochemical releases

The author name was published wrongly in the original publication of the article. The correct author name is “Qingxuan Xu”. The author apologized for this error.

Correction to: Facile synthesis and capacitance properties of N-doped porous carbon/iron oxide composites through the single-step pyrolysis of coal-based polyaniline

The original version of this article unfortunately contained the below equations in “Capacitance properties of NPC/FexOy composites” section which was not described, but was displayed in the article. The author wants to remove these equations.

New formulas for amplitudes from higher-dimensional operators

In this paper we study tree-level amplitudes from higher-dimensional operators, including F 3 operator of gauge theory, and R 2, R 3 operators of gravity, in the Cachazo-He-Yuan formulation. As a generalization of the reduced Pfaffian in Yang-Mills theory, we find a new, gauge-invariant object that leads to gluon amplitudes with a single insertion of F 3, and gravity amplitudes by ...

Limit properties for ratios of order statistics from exponentials

In this paper, we study the limit properties of the ratio for order statistics based on samples from an exponential distribution and obtain the expression of the density functions, the existence of the moments, the strong law of large numbers for R n i j with 1 ≤ i < j < m n = m . We also discuss other limit theorems such as the central limit theorem, the law of iterated logarithm, ...

A data-driven quantitative assessment model for taxi industry: the scope of business ecosystem’s health

Introduction The taxi industry has boomed over the years, both in street-hail and dispatch market. However, few studies focus on comprehensive perspectives, which make decisions such as implementing regulative or incentive policies difficult. As an economic community working in the value-oriented process, the taxi industry requires a holistic performance evaluation to determine how ...

Dr.seq2: A quality control and analysis pipeline for parallel single cell transcriptome and epigenome data

An increasing number of single cell transcriptome and epigenome technologies, including single cell ATAC-seq (scATAC-seq), have been recently developed as powerful tools to analyze the features of many individual cells simultaneously. However, the methods and software were designed for one certain data type and only for single cell transcriptome data. A systematic approach for ...

The influence of cell membrane and SNAP25 linker loop on the dynamics and unzipping of SNARE complex

The soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) complex is composed of three neuronal proteins VAMP2, Syntaxin and SNAP25, which plays a core role during the process of membrane fusion. The zipping assembly of the SNARE complex releases energies and drives the vesicle and cell membrane into close proximity. In this study, we use all-atom molecular ...

Silencing of miR-193a-5p increases the chemosensitivity of prostate cancer cells to docetaxel

Docetaxel-based chemotherapy failure in advanced prostate carcinoma has partly been attributed to the resistance of prostate cancer (PC) cells to docetaxel-induced apoptosis. Hence, there is an urgent need to identify mechanisms of docetaxel chemoresistance and to develop new combination therapies. miR-193a-5p level was evaluated by qPCR in prostate tissues and cell lines, and its ...

CAM: A quality control pipeline for MNase-seq data

Conceptualization: Yong Zhang. Formal analysis: Sheng'en Hu, Xiaolan Chen. Funding acquisition: Yong Zhang. Investigation: Sheng'en Hu, Xiaolan Chen, Ji Liao, Yiqing Chen, Chengchen Zhao, Yong Zhang. Methodology ... : Sheng'en Hu, Xiaolan Chen, Yong Zhang. Project administration: Yong Zhang. Software: Sheng'en Hu. Supervision: Yong Zhang. Visualization: Sheng'en Hu. Writing ± original draft: Sheng'en Hu. Writing

Forecasting electric vehicles sales with univariate and multivariate time series models: The case of China

The market demand for electric vehicles (EVs) has increased in recent years. Suitable models are necessary to understand and forecast EV sales. This study presents a singular spectrum analysis (SSA) as a univariate time-series model and vector autoregressive model (VAR) as a multivariate model. Empirical results suggest that SSA satisfactorily indicates the evolving trend and ...

Short-term apparent brain tissue changes are contributed by cerebral blood flow alterations

. Because arterial blood has larger T1 than brain tissues[ 20 ], substantial perfusion alterations would subsequently change tissue T1 author, Dr. Yong Zhang is an employee of GE Healthcare Beijing. But ... each author are clearly described in the ªauthor contributionsº section. Competing interests: One author, Dr. Yong Zhang is an employee of GE Healthcare Beijing. But except the salary support to Dr

Experimental investigation on the surface and subsurface damages characteristics and formation mechanisms in ultra-precision grinding of SiC

Surface and subsurface damages appear inevitably in the grinding process, which will influence the performance and lifetime of the machined components. In this paper, ultra-precision grinding experiments were performed on reaction-bonded silicon carbide (RB-SiC) ceramics to investigate surface and subsurface damages characteristics and formation mechanisms in atomic scale. The ...

Devosia nitraria sp. nov., a novel species isolated from the roots of Nitraria sibirica in China

An aerobic, Gram-stain negative, short rod-shaped and motile strain, 36-5-1T, was isolated from the roots of Nitraria sibirica in Zhangye city, Gansu province, north-west of China. Phylogenetic analysis based on the 16S rRNA gene sequence and two housekeeping genes (glnA and atpD) indicated that the strain represents a novel species closely related to the Devosia, Rhizobium and ...