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38篇 您的检索式:作者名="Pengbo Yang"
    题名 作者 年代 出处 被引量
1Photoactivated CRY1 and phyB Interact Directly with AUX/IAA Proteins to Inhibit Auxin Signaling in Arabidopsis显示文摘光是在 Arabidopsis 通过蓝色和调停 cryptochrome 的 red/far-red 光光敏电阻器和调停 phytochrome 的小径禁止胚轴房间延伸的关键环境暗示。相反,作为枢轴的内长的植物激素,植物生长素通过 AUX/IAA 蛋白质(AUX/IAAs ) 的植物生长素受体 TIR1/AFBs-mediated 降级支持胚轴延伸。然而,位于发信号的光和植物生长素的对抗相互作用下面的分子的机制仍然保持不清楚。这里,我们报导光禁止由 cryptochrome 的蓝、红的轻依赖者的相互作用通过 AUX/IAAs 的稳定发信号的植物生长素 1 (CRY1 ) 并且有 AUX/IAAs 的 phytochrome B 分别地。有 AUX/IAAs 的 CRY1 的蓝被触发光的相互作用与 AUX/IAAs 禁止 TIR1 的协会,导致这些蛋白质的导致植物生长素的降级的压抑。我们的结果显示光敏电阻器下游地直接作为一样与植物生长素受体分享 AUX/IAAs 表明部件。我们建议由光敏电阻器和植物生长素受体的 AUX/IAA 蛋白质稳定性的那条对抗规定允许植物平衡光和植物生长素信号优化他们的生长。Feng Xu Shengbo He Jingyi Zhang Zhilei Mao Wenxiu Wang Ting Li Jie Hua Shasha Du Pengbo Xu Ling Li Hongli Lian Hong-Quan Yang 2018Molecular Plant2018,11,4:24
2TGFβ inhibition enhances the generation of hematopoietic progenitors from human ES cell-derived hemogenic endothelial cells using a stepwise strategy显示文摘Chengyan Wang Xuming Tang Xiaomeng Sun Zhenchuan Miao Yaxin Lv Yanlei Yang Huidan Zhang Pengbo Zhang Yang Liu LiyingDu Yang Gao Ming Yin Mingxiao Ding Hongkui Deng 2012Cell Research2012,22,1:17
3Photoexcited CRYPTOCHROME 1 Interacts Directly with G-Protein 13 Subunit AGB1 to Regulate the DNA-Binding Activity of HY5 and Photomorphogenesis in Arabidopsis显示文摘Hongli Lian Pengbo Xu Shengbo He Jun Wu Jian Pan Wenxiu Wang Feng Xu Sheng Wang Junsong Pan Jirong Huang Hong-Quan Yang 2018Molecular Plant2018,11,10:10
4Phytochrome B and AGB1 Coordinately Regulate Photomorphogenesis by Antagonistically Modulating PIF3 Stability in Arabidopsis显示文摘Phytochrome B (phyB), the primary red light photoreceptor, promotes photomorphogenesis in Arabidopsis by interacting with the basic helix-loop-helix transcriptional factor PIF3 and inducing its phosphorylation and degradation. Heterotrimeric G proteins are known to regulate various developmental processes in plants and animals. In Arabidopsis, the G-protein β subunit AGB1 is known to repress photomorphogenesis. However, whether and how phyB and AGB1 coordinately regulate photomorphogenesis are largely unknown. Here we show that phyB physically interacts with AGB1 in a red light-dependent manner and that AGB1 interacts directly with PIF3. Moreover, we demonstrate that the AGB1-PIF3 interaction inhibits the association of PIF3 with phyB, leading to reduced phosphorylation and degradation of PIF3, whereas the phyB-AGB1 interaction represses the association of PIF3 with AGB1, resulting in enhaneed phosphorylation and degradation of PIF3. Our results suggest that phyB and AGB1 antagonistically regulate PIF3 stability by dynamically interacting with each other and PIF3. This dynamic mechanism may allow plants to balanee phyB and G-protein signaling to optimize photomorphogenesis.Pengbo Xu Hongli Lian Feng Xu Ting Zhang Sheng Wang Wenxiu Wang Shasha Du Jirong Huang Hong-Quan Yang 2019Molecular Plant2019,12,2:5
5Dynamical decoupling of electron spins in phosphorus-doped silicon显示文摘Quantum coherence is an important enabling feature underpinning quantum computation. However, because of couplings with its noisy surrounding environment, qubits suffer from the decoherence effects. The dynamical decoupling (DD) technique uses pulse-induced qubit flips to effectively mitigate couplings between qubits and environment. Optimal DD eliminates dephasing up to a given order with the minimum number of pulses. In this paper, we first introduce our recent work on prolonging electron spin coherence in γ-irradiated malonic acid crystals and analyze different decoherence mechanisms in this solid system. Then we focus on electron spin relaxation properties in another system, phosphorous-doped silicon (Si:P) crystals. These properties have been investigated by pulse electron paramagnetic resonance (EPR). We also investigate the performance of the dynamical decoupling technique on this system. Using 8-pulse periodic DD, the coherence time can be extended to 296 μs compared with 112 μs with one-pulse control.RONG Xing WANG Ya YANG JiaHui ZHU JinXian XU WanJie FENG PengBo WEN XuJie SU JiHu DU JiangFeng 2011Chinese Science Bulletin2011,56,7:4
6Prevalence and clinical significance of pathogenic germline BRCA1/2 mutations in Chinese non-small cell lung cancer patients显示文摘Objective: Germline alterations in the breast cancer susceptibility genes type 1 and 2, BRCA1 and BRCA2, predispose individuals to hereditary cancers, including breast, ovarian, prostate, pancreatic, and stomach cancers.Accumulating evidence suggests inherited genetic susceptibility to lung cancer.The present study aimed to survey the prevalence of pathogenic germline BRCA mutations(gBRCAm) and explore the potential association between gBRCAm and disease onset in Chinese advanced non-small cell lung cancer(NSCLC) patients.Methods: A total of 6,220 NSCLC patients were screened using capture-based ultra-deep targeted sequencing to identify patients harboring germline BRCA1/2 mutations.Results: Out of the 6,220 patients screened, 1.03%(64/6,220) of the patients harbored the pathogenic gB RCAm, with BRCA2 mutations being the most predominant mutations(49/64, 76.5%).Patients who developed NSCLC before 50 years of age were more likely to carry gBRCAm(P = 0.036).Among the patients harboring classic lung cancer driver mutations, those with concurrent gBRCAm were significantly younger than those harboring the wild-type gBRCA(P = 0.029).By contrast, the age of patients with or without concurrent gBRCAm was comparable to those of patients without the driver mutations(P = 0.972).In addition, we identified EGFR-mutant patients with concurrent gBRCAm who showed comparable progression-free survival but significantly longer overall survival(P = 0.002) compared to EGFR-mutant patients with wild-type germline BRCA.Conclusions: Overall, our study is the largest survey of the prevalence of pathogenic gBRCAm in advanced Chinese NSCLC patients.Results suggested a lack of association between germline BRCA status and treatment outcome of EGFR-TKI.In addition,results showed a positive correlation between pathogenic gB RCAm and an early onset of NSCLC.Xingsheng Hu Dongyong Yang Yalun Li Li Li Yan Wang Peng Chen Song Xu Xingxiang Pu Wei Zhu Pengbo Deng Junyi Ye Hanhan Zhang Analyn Lizaso Hao Liu Xinru Mao Hai Huang Qian Chu Chengping Hu 2019Cancer Biology & Medicine2019,16,3:4
7Blockchain and MEC-Assisted Reliable Billing Data Transmission over Electric Vehicular Network:An Actor–Critic RL Approach显示文摘Recently,electric vehicles(EVs)have been widely used under the call of green travel and environmental protection,and diverse requirements for charging are also increasing gradually.In order to ensure the authenticity and privacy of charging information interaction,blockchain technology is proposed and applied in charging station billing systems.However,there are some issues in blockchain itself,including lower computing efficiency of the nodes and higher energy consumption in the consensus process.To handle the above issues,in this paper,combining blockchain and mobile edge computing(MEC),we develop a reliable billing data transmission scheme to improve the computing capacity of nodes and reduce the energy consumption of the consensus process.By jointly optimizing the primary and replica nodes offloading decisions,block size and block interval,the transaction throughput of the blockchain system is maximized,as well as the latency and energy consumption of the system are minimized.Moreover,we formulate the joint optimization problem as a Markov decision process(MDP).To tackle the dynamic and continuity of the system state,the reinforcement learning(RL)is introduced to solve the MDP problem.Finally,simulation results demonstrate that the performance improvement of the proposed scheme through comparison with other existing schemes.Xinyu Ye Meng Li Pengbo Si Ruizhe Yang Enchang Sun Yanhua Zhang 2021China Communications2021,18,8:3
8Unexpected intercalation-dominated potassium storage in WS2 as a I potassium-ion battery anode显示文摘Unexpected intercalation-dominated process is observed duri ng K^+insertion in WS2 in a voltage range of 0.01-3.0 V.This is different fromthe previously reported two-dimensional(2D)transition metal dichalcogenides that undergo a conversion reaction in a low voltage rangewhen used as anodes in potassium-ion batteries.Charge/discharge processes in the K and Na cells are studied in parallel to demonstrate thedifferention storage mechanisms.The Na^+storage proceeds through intercalation and conversion reactions while the K^+storage is governedby an intercalation reaction.Owing to the reversible K^+intercalation in the van der Waals gaps,the WS2 anode exhibits a low decay rate of 0.07%per cycle,delivering a capacity of 103 mAh·g^-1 after 100 cycles at 100 mA·g^-1.It maintains 57%capacity at 800 mA·g^-1 and shows stablecyclability up to 400 cycles at 500 mA·g^-1.Kinetics study proves the facilitation of K^+transport is derived from the intercalation-dominatedmecha nism.Furthermore,the mechanismis verified by the density functional theory(DFT)calculations,showing that the progressive expansion of the interlayer space can account for the observed results.Vuhan Wu Yang Xu Yueliang Li Pengbo Lyu Jin Wen Chenglin Zhang Min Zhou Yaoguo Fang Huaping Zhao Ute Kaiser Yong Lei 2019Nano Research2019,12,12:3
9Separation-and-Recovery Technology for Organic Waste Liquid with a High Concentration of Inorganic Particles显示文摘Hualin Wang Pengbo Fu Jianping Li Yuan Huang Ying Zhao Lai Jiang Xiangchen Fang Tao Yang Zhaohui Huang Cheng Huang 2018Engineering2018,4,3:3
10Urban biodiversity in China: Who are winners? Who are losers?显示文摘Rapid urbanization in the last three decades has impacted biogeographic patterns of wildlife in China profoundly.Large areas of natural habitats have been converted into concentrated industrial and residential areas[1].Remaining habitats in vicinities of cities are often fragmented and degraded[2].Besides land use/land cover changes,anthropogenic disturbances such as the introduction of exotic species further add pressure on local biodiversity[3].How does wildlife respond to these impacts?WhoJun Yang Pengbo Yan Xueyan Li 2016Science Bulletin2016,61,21:3
11Phase Boundary Mapping in ZrNiSn Half-Heusler for Enhanced Thermoelectric Performance显示文摘The solubility range of interstitial Ni in the ZrNi1+xSn half-Heusler phase is a controversial issue,but it has an impact on the thermoelectric properties.In this study,two isothermal section phase diagrams of the Zr-Ni-Sn ternary system at 973K and 1173 K were experimentally constructed based on the binary phase diagrams of Zr-Ni,Zr-Sn,and Ni-Sn.The thermodynamic equilibrium phases were obtained after a long time of heating treatment on the raw alloys prepared by levitation melting.Solubilities of x<0:07 at 973 K and x<0:13 at 1173 K were clearly indicated.An intermediate-Heusler phase with a partly filled Ni void was observed,which is believed to be beneficial to the lowered lattice thermal conductivity.The highest ZT value~0:71 at 973 K was obtained for ZrNi_(1.11)Sn_(1.04).The phase boundary mapping provides an important instruction for the further optimization of ZrNiSn-based materials and other systems.Xiaofang Li Pengbo Yang Yumei Wang Zongwei Zhang Dandan Qin Wenhua Xue Chen Chen Yifang Huang Xiaodong Xie Xinyu Wang Mujin Yang Cuiping Wang Feng Cao Jiehe Sui Xingjun Liu Qian Zhang 2020Research2020,,1:2
12Ferroptosis promotes T-cell activation-induced neurodegeneration in multiple sclerosis显示文摘While many drugs are effective at reducing the relapse frequency of multiple sclerosis (MS), there is an unmet need for treatments that slow neurodegeneration resulting from secondary disease progression. The mechanism of neurodegeneration in MS has not yet been established. Here, we discovered a potential pathogenetic role of ferroptosis, an iron-dependent regulated cell death mechanism, in MS. We found that critical ferroptosis proteins (acyl-CoA synthetase long-chain family member 4, ACSL4) were altered in an existing genomic database of MS patients, and biochemical features of ferroptosis, including lipid reactive oxygen species (ROS) accumulation and mitochondrial shrinkage, were observed in the experimental autoimmune encephalitis (EAE) mouse model. Targeting ferroptosis with ferroptosis inhibitors or reducing ACSL4 expression improved the behavioral phenotypes of EAE mice, reduced neuroinflammation, and prevented neuronal death. We found that ferroptosis was an early event in EAE, which may promote T-cell activation through T-cell receptor (TCR) signaling in vitro and in vivo. These data indicate that ferroptosis may be a potential target for treating MS.Jinyuan Luoqian Wenyong Yang Xulong Ding Qing-zhang Tuo Zheng Xiang Zhaoyue Zheng Yu-jie Guo Li Li Pengbo Guan Scott Ayton Biao Dong Huiyuan Zhang Hongbo Hu Peng Lei 2022Cellular & Molecular Immunology2022,19,8:2
13Boron-doping induced lithophilic transition of graphene for dendrite-free lithium growth显示文摘Li metal,possessing advantages of high theoretical specific capacity and low electrochemical potential,is regarded as the most promising anode material for next-generation batteries.However,despite decades of intensive research,its practical application is still hindered by safety hazard and low Coulombic efficiency,which is primarily caused by dendritic Li deposition.To address this issue,restraining dendrite growth at the nucleation stage is deemed as the most effective method.By utilizing the difference of electronegativity between boron atoms and carbon atoms,carbon atoms around boron atoms in boron-doped graphene(BG)turn into lithiophilic sites,which can enhance the adsorption capacity to Li^(+)at the nucleation stage.Consequently,an ultralow overpotential of 10 mV at a current density of 0.5 mA/cm^(2) and a high average Coulombic efficiency of 98.54%over more than 140 cycles with an areal capacity of 2 mAh/cm^(2) at a current density of 1 m A/cm^(2) were achieved.BG-Li|LiFePO_(4) full cells delivered a long lifespan of480 cycles at 0.5 C and excellent rate capability.This work provides a novel method for rational design of dendrite-free Li metal batteries by regulating nucleation process.Wei Liu Pengbo Zhai Shengjian Qin Jing Xiao Yi Wei Weiwei Yang Shiqiang Cui Qian Chen Chunqiao Jin Shubin Yang Yongji Gong 2021Journal of Energy Chemistry2021,30,5:2
14Electrochemical sensor for naphthols based on gold nanoparticles/hollow nitrogendoped carbon microsphere hybrids functionalized with SH-β-cyclodextrin显示文摘ZHU Gangbing GAI Pengbo YANG Yan 2012Analytica Chimica Acta2012,723,:1
15Erratum to Prevalence and clinical significance of pathogenic germline BRCA1/2 mutations in Chinese non-small cell lung cancer patients显示文摘In the published article1,the affiliation for the first author,Xingshcng Hu,is'Department of Medical Oncology,Cancer Hospital,Chinese Academy of Medical Sciences',we would like to update it to'Department of Medical Oncology,National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing,100021,China'.We apologize for the errors and for any confusion it may have caused.Xingsheng Hu Dongyong Yang Yalun Li Li Li Yan Wang Peng Chen Song Xu Xingxiang Pu Wei Zhu Pengbo Deng Junyi Ye Hanhan Zhang Analyn Lizaso Hao Liu Xinru Mao Hai Huang Qian Chu Chengping Hu 2020Cancer Biology & Medicine2020,17,2:1
16Temporal and spatial distribution of metabotropic glutamate receptor 5 during development in the rat cortex and hippocampus显示文摘Metabotropic glutamate receptor 5 (mGluR5) is expressed by neurons in zones of active neurogenesis and is involved in the development of neural stem cells in vivo and in vitro.We examined the expression of mGluR5 in the cortex and hippocampus of rats during various prenatal and postnatal periods using immunohistochemistry.During prenatal development,mGluR5 was primarily localized to neuronal somas in the forebrain.During early postnatal periods,the receptor was mainly present on somas in the cortex.mGluR5 immunostaining was visible in apical dendrites and in the neuropil of neurons and persisted throughout postnatal development.During this period,pyramidal neurons were strongly labeled for the receptor.In the hippocampal CA1 region,mGluR5 immunoreactivity was more intense in the stratum oriens,stratum radiatum,and lacunosum moleculare at P0,P5 and P10 relative to P60.mGluR5 expression increased significantly in the molecular layer and decreased significantly in the granule cell layer of the dentate gyrus at P5,P10 and P60 in comparison with P0.Furthermore,some mGluR5-positive cells were also bromodeoxyuridine-or NeuroD-positive in the dentate gyrus at P14.These results demonstrate that mGluR5 has a differential expression pattern in the cortex and hippocampus during early growth,suggesting a role for this receptor in the control of domain specific brain developmental events.Xinli Xiao Ming Hu Pengbo Yang Lin Zhang Xinlin Chen Yong Liu 2011Neural Regeneration Research2011,6,17:1
17Two Supporting Factors Greatly Improve the Efficiency of Human iPSC Generation显示文摘Yang Zhao Xiaolei Yin Han Qin Fangfang Zhu Haisong Liu Weifeng Yang Qiang Zhang Chengang Xiang Pingping Hou Zhihua Song Yanxia Liu Jun Yong Pengbo Zhang Jun Cai Meng Liu Honggang Li Yanqin Li Xiuxia Qu Kai Cui Weiqi Zhang Tingting Xiang Yetao Wu Yiding Zh 2008Cell Stem Cell2008,,5:1
18Proximal Policy Optimization-Based Committee Selection Algorithm in Blockchain-Enabled Mobile Edge Computing Systems显示文摘To cope with the low latency requirements and security issues of the emerging applications such as Internet of Vehicles(Io V)and Industrial Internet of Things(IIo T),the blockchain-enabled Mobile Edge Computing(MEC)system has received extensive attention.However,blockchain is a computing and communication intensive technology due to the complex consensus mechanisms.To facilitate the implementation of blockchain in the MEC system,this paper adopts the committee-based Practical Byzantine Fault Tolerance(PBFT)consensus algorithm and focuses on the committee selection problem.Vehicles and IIo T devices generate the transactions which are records of the application tasks.Base Stations(BSs)with MEC servers,which serve the transactions according to the wireless channel quality and the available computing resources,are blockchain nodes and candidates for committee members.The income of transaction service fees,the penalty of service delay,the decentralization of the blockchain and the communication complexity of the consensus process constitute the performance index.The committee selection problem is modeled as a Markov decision process,and the Proximal Policy Optimization(PPO)algorithm is adopted in the solution.Simulation results show that the proposed PPO-based committee selection algorithm can adapt to the system design requirements with different emphases and outperforms other comparison methods.Wenjun Wu Dehao Sun Kaiqi Jin Yang Sun Pengbo Si 2022China Communications2022,19,6:1
19Neural network and support vector machine models for the prediction of the liquefaction-induced uplift displacement of tunnels显示文摘Tunnels buried in liquefiable deposits are vulnerable to liquefaction-induced uplift damage during earthquakes.This paper presents support vector machine(SVM)and artificial neural network(ANN)models to predict the liquefaction-induced uplift displacement of tunnels based on artificial databases generated by the finite difference method.The performance of the SVM and ANN models was assessed using statistical parameters,including the coefficient of determination R^(2),the mean absolute error,and the root mean squared error.Applications for the above-mentioned approaches are compared and discussed.A relative importance analysis was adopted to quantify the sensitivity of each input variable.The precision of the presented models is demonstrated using centrifuge test results from previous studies.Gang Zheng Wenbin Zhang Wengang Zhang Haizuo Zhou Pengbo Yang 2021Underground Space2021,6,2:1
20Deep reinforcement learning based worker selection for distributed machine learning enhanced edge intelligence in internet of vehicles显示文摘Nowadays,Edge Information System(EIS)has received a lot of attentions.In EIS,Distributed Machine Learning(DML),which requires fewer computing resources,can implement many artificial intelligent applications efficiently.However,due to the dynamical network topology and the fluctuating transmission quality at the edge,work node selection affects the performance of DML a lot.In this paper,we focus on the Internet of Vehicles(IoV),one of the typical scenarios of EIS,and consider the DML-based High Definition(HD)mapping and intelligent driving decision model as the example.The worker selection problem is modeled as a Markov Decision Process(MDP),maximizing the DML model aggregate performance related to the timeliness of the local model,the transmission quality of model parameters uploading,and the effective sensing area of the worker.A Deep Reinforcement Learning(DRL)based solution is proposed,called the Worker Selection based on Policy Gradient(PG-WS)algorithm.The policy mapping from the system state to the worker selection action is represented by a deep neural network.The episodic simulations are built and the REINFORCE algorithm with baseline is used to train the policy network.Results show that the proposed PG-WS algorithm outperforms other comparation methods.Junyu Dong Wenjun Wu Yang Gao Xiaoxi Wang Pengbo Si 2020Intelligent and Converged Networks2020,1,3:1
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