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Interplay of phytohormones and epigenetic regulation:A recipe for plant development and plasticity

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Journal of Integrative Plant Biology 2023年第2期65卷 381-398页

作者： kai jiang Hongwei Guo Jixian Zhai Institute of Plant and Food Science Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education InstitutesDepartment of BiologySchool of Life SciencesSouthern University of Science and Technology(SUSTech)Shenzhen 518055China

Both phytohormone signaling and epigenetic mechanisms have long been known to play crucial roles in plant development and plasticity in response to ambient ***,diverse signaling pathways mediated by phytohormones and epigenetic processes integrate multiple upstream signals to regulate various plant *** evidence indicates that phytohormones and epigenetic processes interact at multiple *** this review,we summarize the current knowledge of the interplay between phytohormones and epigenetic processes from the perspective of phytohormone *** also review chemical regulators used in epigenetic studies and propose strategies for developing novel regulators using multidisciplinary approaches.

关键词： chemical genetics epigenetics phytohormone plant growth and development plant growth regulator plasticity

Copper-Initiated Radical Dearomative 2,5-Alkylarylation of Furans via Trihalomethylation/Spirocyclization Cascade

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Chinese Journal of Chemistry 2022年第24期40卷 2893-2899页

作者： Wenkun Luo kai jiang Biaolin Yin Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhouGuangdong510640 China Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation School of Chemistry and EngineeringChangsha University of Science and TechnologyChangshaHunan410114 China

Here is an operable and rare strategy for copper-initiated radical dearomative 2,5-alkylarylation of furan. By means of this strategy, we realized the dearomatization of furans to construct spirooxindoles with good yi... 详细信息

关键词： Copper Radical reactions Dearomatization Trihalomethylation Spiro compounds

A Robust Framework for Multimodal Sentiment Analysis with Noisy Labels Generated from Distributed Data Annotation

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Computer Modeling in Engineering & Sciences 2024年第6期139卷 2965-2984页

作者： kai jiang Bin Cao Jing Fan School of Computer Science and Technology Zhejiang University of TechnologyHangzhou310023China

Multimodal sentiment analysis utilizes multimodal data such as text,facial expressions and voice to detect people’s *** the advent of distributed data collection and annotation,we can easily obtain and share such multimodal ***,due to professional discrepancies among annotators and lax quality control,noisy labels might be *** research suggests that deep neural networks(DNNs)will overfit noisy labels,leading to the poor performance of the *** address this challenging problem,we present a Multimodal Robust Meta Learning framework(MRML)for multimodal sentiment analysis to resist noisy labels and correlate distinct modalities ***,we propose a two-layer fusion net to deeply fuse different modalities and improve the quality of the multimodal data features for label correction and network ***,a multiple meta-learner(label corrector)strategy is proposed to enhance the label correction approach and prevent models from overfitting to noisy *** conducted experiments on three popular multimodal datasets to verify the superiority of ourmethod by comparing it with four baselines.

关键词： Distributed data collection multimodal sentiment analysis meta learning learn with noisy labels

A novel technique for probing phase transitions in ferroelectric functional materials: Condensed matter spectroscopy

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Science China(Technological Sciences) 2016年第10期59卷 1537-1548页

作者： ZHANG JinZhong jiang kai HU ZhiGao CHU JunHao Department of Electronic Engineering East China Normal University

As relaxor ferroelectric functional materials, their crystal structures depend on temperature, component, electric filed, pressure, and so on, which are important for the applications of sensors, transducers, and actuators. For the case of PbTiO3-based ferroelectrics Pb（Zn2/3Nb2/3）O3-PbTiO3, Pb（Mg1/3Nb2/3）O3-PbTiO3, Pb（In1/2Nb1/2）O3-Pb（Mgu3Nb2/3）O3-PbTiO3 and some other crystals, they have been extensively investigated due to the excellent electromechanical and piezoelectric properties. Generally, ferroelectric crystal structure and corresponding phase diagram are detected by temperature-dependent high resolution X-ray diffraction, low frequency dielectric permittivity, and domain structures. In this review, we focus on the novel condensed matter spectroscopy （i.e., spectroscopic ellipsometry, transmittance, photoluminescence spectra as well as Raman spectra）, which is nondestructive, noncontact, and sensitive optical techniques for probing symmetries, phase transitions and phase diagrams of ferroelectric crystals. Besides, it can supply some other physical and chemical information for ferroelectric and semiconductor functional materials such as optical band gap, electronic transitions, dielectric functions, optical conductivity, absorption, pho- non modes, lattice dynamics as functions of temperature and PT composition.

关键词： ferroelectrics phase diagram Raman scattering ellipsometric spectroscopy transmittance photoluminescence

Deep learning-based LPI radar signals analysis and identification using a Nyquist Folding Receiver architecture

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Defence Technology（防务技术） 2023年第1期19卷 196-209页

作者： Tao Wan kai-li jiang Hao Ji Bin Tang School of Information and Communication Engineering University of Electronic Science and Technology of ChinaChengdu611731China

Nyquist Folding Receiver(NYFR)is a perceptron structure that realizes a low probability of intercept(LPI)signal analog to *** at the problem of LPI radar signal receiving,the time domain,frequency domain,and time-frequency domain problems of signals intercepted by NYFR structure are *** with the time-frequency analysis(TFA)method,a radar recognition scheme based on deep learning(DL)is introduced,which can reliably classify common LPI radar ***,the structure of NYFR and its characteristics in the time domain,frequency domain,and time and frequency domain are ***,the received signal is then converted into a time-frequency image(TFI).Finally,four kinds of DL algorithms are used to classify LPI radar *** results demonstrate the correctness of the NYFR structure,and the effectiveness of the proposed recognition method is verified by comparison experiments.

关键词： Nyquist folding receiver Ultra-wideband Deep learning Time-frequency analysis Identification Classification

Smoothened regulation in response to Hedgehog stimulation

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Frontiers in Biology 2015年第6期10卷 475-486页

作者： kai jiang Jianhang Jia Markey Cancer Center Department of Molecular and Cellular Biochemistry University of Kentucky College of Medicine Lexington KY40536 USA

The Hedgehog （Hh） signaling pathway play critical roles in embryonic development and adult tissue homeostasis. A critical step in Hh signal transduction is how Hh receptor Patched （Ptc） inhibits the atypical G protein- coupled receptor Smoothened （Smo） in the absence of Hh and how this inhibition is release by Hh stimulation. It is unlikely that Ptc inhibits Smo by direct interaction. Here we discuss how Hh regulates the phosphorylation and ubiquitination of Smo, leading to cell surface and ciliary accumulation of Smo in Drosophila and vertebrate cells, respectively. In addition, we discuss how PI（4）P phospholipid acts in between Ptc and Smo to regulate Smo phosphorylation and activation in response to Hh stimulation.

关键词： Hh signaling phospholipid phosphorylation Smo ubiquitination signal transduction

Economic uncertainty,central bank digital currency,and negative interest rate policy

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Journal of Management Science and Engineering 2023年第4期8卷 430-452页

作者： Baogui Xin kai jiang College of Economics and Management Shandong University of Science and TechnologyQingdao266590China

The covID-19 outbreak has brought unprecedented social attention to economic uncertainty and negative interest rate policy(NIRP).How does uncertainty affect economic activity,and how effective is a NIRP based on central bank digital currency(CBDC)?To answer the two questions,we constructed a dynamic stochastic general equilibrium(DSGE)model that accommodates sticky prices and *** results indicated:(i)Economic uncertainty has substantially reduced investment,output,wage,and loans,which increases unemployment *** the short term,it has triggered impulsive consumption by households,while consumption has fallen into a slump in the long run.(ii)After suffering an uncertainty shock,the economy entered short-term stagflation and long-term *** short-term stagflation was mainly caused by resident wage adjustment,and the long-term deflation was due to the decline in effective demand caused by unemployment risk.(ii)CBDC could eliminate the zero lower bound(ZLB)constraint,thereby improving the effectiveness of *** with traditional currency,CBDCbased NIRP could more effectively smooth macroeconomic fluctuations and alleviate the negative impact of an uncertainty shock,which is more conducive to restoring market confidence and promoting economic recovery.

关键词： Economic uncertainty Zero lower bound(ZLB) Central bank digital currency(CBDC) Negative interest rate policy(NIRP)

Influence of the heat irrigating effect of radiofrequency ablation on regional liver tissue in Bama miniature pigs

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World Journal of Gastrointestinal Oncology 2021年第2期13卷 109-118页

作者： Jian Feng Song Wang kai jiang Department of Hepatobiliary Surgery Chinese PLA General HospitalBeijing 100853China Department of General Surgery Taizhou Central Hospital(Taizhou University Hospital)Taizhou 318000Zhejiang ProvinceChina

BACKGROUND The results of the heat irrigating effect of radiofrequency ablation(RFA)are uncertain,and the accurate impact of the heat irrigating effect on regional liver tissue is unknown due to a lack of control *** The aim of this study was to determine the influence of the heat irrigating effect of RFA on regional liver tissue in Bama miniature *** Eight Bama miniature pigs were randomly divided into the observation group(group A)and the control group(group B),with 4 pigs/*** RFA electrode needle was implanted near the hepatic segment vasculature(3-5 mm from the hepatic segment portal vein)under ultrasound guidance in group ***,an RFA electrode needle was implanted far from the hepatic segment vasculature(8-10 mm from the hepatic segment portal vein)in group *** left internal lobe and right medial lobe were chosen as RFA sites in each *** was performed at the left internal lobe on day one in each pig,and at the right medial lobe 7 d *** RFA lasted 12 *** general status of the pigs and serious complications were observed during the perioperative *** pigs were sacrificed and the livers were removed immediately after RFA on the eighth *** samples were roughly ***-eosin and Ki67 staining,as well as TUNEL detection,were performed on the tissue *** All 8 animals successfully underwent ultrasound-guided *** serious complications,such as massive hemorrhage,biliary fistula,severe pleural effusion,pneumothorax,peripheral organ failure,or renal failure occurred in any of the animals during the perioperative *** RFA coagulative necrosis lesion was spherical and the surrounding liver tissue showed an inflammatory *** difference in the Suzuki score of the liver tissue surrounding the ablated portal vein,and its distal area between groups A and B,was statistically significant(P<0.05).More apoptotic cells were seen in liver tissue surrounding the ablated portal vein and

关键词： Radiofrequency ablation Heat irrigating effect Animal experimental Cell apoptosis Immunohistochemistry Thermal damage

SomeWeighted Averaging Methods for Gradient Recovery

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Advances in Applied Mathematics and Mechanics 2012年第2期4卷 131-155页

作者： Yunqing Huang kai jiang Nianyu Yi Hunan Key Laboratory for Computation and Simulation in Science and Engineering School of Mathematics and Computational ScienceXiangtan UniversityXiangtan 411105HunanChina

We propose some new weighted averaging methods for gradient recovery,and present analytical and numerical investigation on the performance of these weighted averaging *** is shown analytically that the harmonic averaging yields a superconvergent gradient for any mesh in one-dimension and the rectangular mesh in *** results indicate that these new weighted averaging methods are better recovered gradient approaches than the simple averaging and geometry averaging methods under triangular mesh.

关键词： Finite element method weighted averaging gradient recovery