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Strigolactones and Brassinosteroids Antagonistically Regulate the Stability of the D53-OsBZR1 Complex to Determine FC1 Expression in Rice Tillering

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molecular Plant 2020年第4期13卷 586-597页

作者： Zhongming Fang Yuanyuan ji jie Hu Renkang guo Shiyong Sun Xuelu Wang National Key Laboratory of Crop Genetic Improvement and Center of Integrative Biology College of Life Science and TechnologyHuazhong Agricultural UniversityWuhan 430070 China College of Agricultural Sciences Guizhou UniversityGuiyang 550025 China Department of Genetics School of Life SciencesFudan UniversityShanghai 200438 China

Rice tillering,a key architecture trait determ ining grain yield,is highly regulated by a class of newly identified phytohorm ones,strigolactones(SLs).How ever,the whole SL signaling pathw ay from the receptor to dow nstream transcription factors to finally inhibit tillering remains *** this study,we first found that brassinosteroids(BRs)strongly enhance tillering by prom oting bud outgrow th in rice,which is largely different from the function of BRs in *** and biochem ical analyses indicated that both the SL and BR signaling pathw ays control rice tillering by regulating the stability of D53 and/or the OsBZR1 RLA1-DLT module,a transcriptional complex in the rice BR signaling *** further found that D53 interacts with OsBZR1 to inhibit the expression of FC1,a local inhibitor of tillering,and that this inhibition depends on direct DNA binding by OsBZR1,which recruits D53 to the FC1 promoter in rice *** together,these findings uncover a mechanism illustrating how SLs and BRs coordinately regulate rice tillering via the early responsive gene FC1.

关键词： rice tillering,strigolactones brassinosteroids D53 OsBZFm FCY

A micropore array-based solid lift-off method for highly efficient and controllable cell alignment and spreading

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microsystems & Nanoengineering 2020年第1期6卷 517-529页

作者： Tingting Hun Yaoping Liu Yechang guo Yan Sun Yubo Fan Wei Wang Key Laboratory for Biomechanics and mechanobiology of ministry of Education School of Biological Science and Medical EngineeringBeihang University100191 BeijingChina Institute of microelectronics Peking University100871 BeijingChina State Key Laboratory of Transducer Technology Chinese Academy of Sciences200050 ShanghaiChina Beijing Advanced Innovation Center for Biomedical Engineering Beihang University100083 BeijingChina National Key Laboratory of Science and Technology on micro/Nano Fabrication 100871 BeijingChina Frontiers Science Center for Nano-optoelectronics Peking University100871 BeijingChina

Interpretation of cell–cell and cell-microenvironment interactions is critical for both advancing knowledge of basic biology and promoting applications of regenerative *** patterning has been widely investigated in previous ***,the reported methods cannot simultaneously realize precise control of cell alignment and adhesion/spreading with a high efficiency at a high ***,a novel solid lift-off method with a micropore array as a shadow mask was *** and precise control of cell alignment and adhesion/spreading are simultaneously achieved via an ingeniously designed shadow mask,which contains large micropores(capture pores)in central areas and small micropores(spreading pores)in surrounding areas contributing to capture/alignment and adhesion/spreading control,*** solid lift-off functions as follows:(1)protein micropattern generates through both the capture and spreading pores,(2)cell capture/alignment control is realized through the capture pores,and(3)cell adhesion/spreading is controlled through previously generated protein micropatterns after lift-off of the shadow ***-throughput(2.4–3.2×10^(4) cells/cm 2)cell alignments were achieved with high efficiencies(86.2±3.2%,56.7±9.4%and 51.1±4.0%for single-cell,double-cell,and triple-cell alignments,respectively).Precise control of cell spreading and applications for regulating cell skeletons and cell–cell junctions were investigated and verified using murine skeletal muscle *** the best of our knowledge,this is the first report to demonstrate highly efficient and controllable multicell alignment and adhesion/spreading simultaneously via a simple solid lift-off *** study successfully fills a gap in literatures and promotes the effective and reproducible application of cell patterning in the fields of both basic mechanism studies and applied medicine.

关键词： alignment pores solid

Accurate design of spatially separated double active site in Bi_(4)NbO_(8)Cl single crystal to promote Z-Scheme photocatalytic overall water splitting

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journal of Energy Chemistry 2023年第12期87卷 568-582,I0014页

作者： Kailong Gao Hongxia guo Yanan Hu Hongbin He mowen Li Xiaoming Gao Feng Fu Faculty of materials and manufacturing Beijing University of TechnologyBeijing 100124China Yanneng-Yanda Comprehensive Energy Industry Technology Research Institute Shaanxi Modern Industrial College of Green and Efficient Utilization of Energy ResourcesShaanxi Collaborative Innovation Center of Clean Utilization of Low Rank CoalShaanxi Key Laboratory of Chemical Reaction EngineeringDepartment of Chemistry and Chemical EngineeringYan’an UniversityYan’an 716000ShaanxiChina

The efficiency of photocatalytic overall water splitting was mainly limited by the slow reaction kinetics of water *** to design effective surface active site to overcome the slow water oxidation reaction was a major ***,we propose a strategy to accelerate surface water oxidation through the fabrication spatially separated double active ***/Bi_(4)NbO_(8)Cl-OVs photocatalyst with spatially separated double active site was prepared by hydrogen reduction photoanode deposition *** to the high matching of the spatial loading positions of FeCoPi and OVs with the photogenerated charge distribution of Bi_(4)NbO_(8)Cl and corresponding reaction mechanisms of substrate,the FeCoPi and OVs on the(001)and(010)crystal planes of Bi_(4)NbO_(8)Cl photocatalyst provided surface active site for water oxidation reaction and electron shuttle reaction(Fe^(3+)/Fe^(2+)),*** visible light irradiation,the evolution O_(2)rate of FeCoPi/Bi_(4)NbO_(8)Cl OVs was 16.8μmol h^(-1),as 32.9 times as Bi_(4)NbO_(8)***,a hydrogen evolution co-catalyst PtRu@Cr_(2)O_(3)was prepared by sequential photodeposition *** to the introduction of Ru,the Schottky barrier between PbTiO_(3)and Pt was effectively reduced,which promoted the transfer of photogenerated electrons to PtRu@Cr_(2)O_(3)thermodynamically,the evolution H_(2)rate on PtRu@Cr_(2)O_(3)/PbTiO_(3)increased to 664.8 *** based of the synchronous enhancement of the water oxidation performance on FeCoPi/Bi_(4)NbO_(8)Cl-OVs and water reduction performance on PtRu@Cr_(2)O_(3)/PbTiO_(3),a novel Z-Scheme photocatalytic overall water splitting system(FeCoPi/Bi_(4)NbO_(8)Cl-OVs)mediated by Fe^(3+)/Fe^(2+)had successfully *** visible light irradiation,the evolution rates of H_(2)and O_(2)were 2.5 and 1.3μmol h^(-1),*** work can provide some reference for the design of active site and the controllable synthesis of OVs spatial *** the other hand,the hydr

关键词： Spatially separated double active sites FeCoPi/Bi_(4)NbO_(8)Cl-OVs Photocatalytic water oxidation Photocatalytic hydrogen evolution Hydrogen evolution co-catalyst PtRu@Cr_(2)O_(3) Z-Scheme photocatalytic overall water splitting system

Deep knowledge tracking algorithm based on forgetting law

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The journal of China Universities of Posts and Telecommunications 2023年第1期30卷 17-27页

作者： guo Xiangbo Wang jian Huang mengjie Wang minghui Yang jian Yu Yongtao School of Computer and Artificial Intelligence Zhengzhou UniversityZhengzhou 450001China Yunnan Key Laboratory of Smart City in Cyberspace Security Yuxi Normal UniversityYuxi 653100China

Knowledge tracking(KT)algorithm,which can model the cognitive level of learners,is a fundamental artificial intelligence approach to solve the personalized learning problem in the field of *** recently presented separated self-attentive neural knowledge tracing(SAINT)algorithm has got a great improvement on predictingthe accuracy of students’answers in comparison with the present other *** there is still potential to enhance its performance for it fails to effectively utilize temporal *** this paper,an optimization algorithm for SAINT based on Ebbinghaus’law of forgetting was proposed which took temporal features into *** proposed algorithm used forgetting law-based data binning to discretize the time information sequences,so as to obtain the temporal featuresin accordance with people’s forgetting *** the temporal features were used as input in the decoder of SAINT model to improve its *** experiments and comparison experiments were performed on the EdNet dataset in order to verify the effectiveness of the proposed *** in the experimental results,it achieved higher area under curve(AUC)values than the other present representative knowledge tracing *** demonstrates that temporal featuresare necessary for KT algorithms if it can be properly dealt with.

关键词： knowledge tracking neural network attention mechanism personalized learning Ebbinghaus' law of forgetting

OsNPF3.1,a nitrate,abscisic acid and gibberellin transporter gene,is essential for rice tillering and nitrogen utilization efficiency

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journal of Integrative Agriculture 2024年第4期23卷 1087-1104页

作者： junnan Hang Bowen Wu Diyang Qiu guo Yang Zhongming Fang mingyong Zhang Institute of Rice Industry Technology Research/Key Laboratory of Functional Agriculture Guizhou Provincial Department of Education/Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous RegionMinistry of Education/Key Laboratory of Molecular Breeding for Grain and Oil Crops in Guizhou Province/College of Agricultural SciencesGuizhou UniversityGuiyang 550025China Key Laboratory of South China Agricultural Plant molecular Analysis and Genetic Improvement/Guangdong Provincial Key Laboratory of Applied Botany/South China Botanical Garden Chinese Academy of SciencesGuangzhou 510650China Institute of Fruit Tree Research Guangdong Academy of Agricultural SciencesGuangzhou 510640China

Low-affinity nitrate transporter genes have been identified in subfamilies 4-8 of the rice nitrate transporter 1(NRT1)/peptide transporter family(NPF),but the OsNPF3 subfamily responsible for nitrate and phytohormone transport and rice growth and development remains *** this study,we described OsNPF3.1 as an essential nitrate and phytohormone transporter gene for rice tillering and nitrogen utilization efficiency(NUtE).OsNPF3.1 possesses four major haplotypes of its promoter sequence in 517 cultivars,and its expression is positively associated with tiller *** expression was higher in the basal part,culm,and leaf blade than in other parts of the plant,and was strongly induced by nitrate,abscisic acid(ABA)and gibberellin 3(GA_3)in the root and shoot of *** experiments demonstrated that OsNPF3.1 is a pH-dependent low-affinity nitrate transporter,with rice protoplast uptake assays showing it to be an ABA and GA_3 ***3.1 overexpression significantly promoted ABA accumulation in the roots and GA accumulation in the basal part of the plant which inhibited axillary bud outgrowth and rice tillering,especially at high nitrate *** NUtE of OsNPF3.1-overexpressing plants was enhanced under low and medium nitrate concentrations,whereas the NUtE of OsNPF3.1 clustered regularly interspaced short palindromic repeats(CRISPR)plants was increased under high nitrate *** results indicate that OsNPF3.1 transports nitrate and phytohormones in different rice tissues under different nitrate *** altered OsNPF3.1 expression improves NUtE in the OsNPF3.1-overexpressing and CRISPR lines at low and high nitrate concentrations,respectively.

关键词： rice tillering grain yield phytohormone nitrate transporter nitrogen utilization efficiency

In-situ monitoring plume,spattering behavior and revealing their relationship with melt flow in laser powder bed fusion of nickel-based superalloy

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journal of materials Science & Technology 2024年第10期177卷 44-58页

作者： You Wang Wei guo Yinkai Xie Huaixue Li Caiyou Zeng ming Xu Hongqiang Zhang School of mechanical Engineering and Automation Beihang UniversityBeijing 100191China Science and Technology on Power Beam Processes Laboratory AVIC Manufacturing Technology InstituteBeijing 100024China Key Laboratory of Aeronautical Technology on Additive manufacturing AVIC Manufacturing Technology InstituteBeijing 100024China

Laser powder bed fusion(LPBF)is a highly dynamic and complex physical process,and single-track de-fects tend to accumulate into non-negligible internal defects of *** nickel-based superalloy single track was fabricated by LPBF,and its plume and spattering behavior were monitored in situ and recorded in real time based on image recognition and tracking in this *** relationship among laser energy density,melt flow,plume and spattering behavior during LPBF was *** energy density had limitations as a design parameter for ***,we found that plume and spattering behavior can be used as real-time design parameters for the processing of LPBF parts and implemented the initial velocity statistics for LPBF single-track spattering based on the centroid extraction *** influ-ence of melt flow evolution paths on the spattering and plume behavior in three different melting modes was revealed,and a shift in plume behavior was found in the overlap region of the additive *** study provides a new method for obtaining statistics of spattering-related physical quantities in the melting mode,which is beneficial for the development of processing methods to mitigate the instability of the LPBF process.

关键词： Laser powder bed fusion Plume behavior Spattering behavior In-situ monitoring Ickel-based superalloy

Robust copper nanocrystal/nitrogen-doped carbon monoliths as carbon monoxide-resistant electrodes for methanol oxidation reaction

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journal of Energy Chemistry 2021年第7期30卷 247-255页

作者： Fei Chen Na Wu meixu Zhai Xue Zhang Ruihong guo Tuoping Hu mingming ma Department of Chemistry College of ScienceNorth University of Chin1Taiyuan 030051ShanxiChina CAS Key Laboratory of Soft matter Chemistry Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of Chin1Hefei 230026AnhuiChina

Noble metal-based electrocatalysts present high activities for methanol oxidation reaction(mOR),but are limited by their high cost,low stability and poor resistance to carbon monoxide(CO) *** development of active and stable non-noble metal electrocatalysts for mOR is desired,but remains a ***,we report a simple strategy to make copper nanocrystal/nitrogen-doped carbon(Cu/N-C)monoliths,which can serve as active and robust electrodes for *** nanocrystals were electrochemically deposited onto a conductive polyaniline hydrogel and calcined to form Cu/N-C monolith,where the active copper nanocrystals are protected by nitrogen-doped *** to their extremely high electrical conductivity(1.25 × 10^(5) S cm^(-1)) and mechanical robustness,these Cu/N-C monoliths can be directly used as electrodes for mOR,without using substrates or *** optimal Cu/N-C(FT)@500 monolith shows a high mOR activity of 189 mA cm^(-2) at 0.6 V *** in alkaline methanol solution,superior to most of reported Cu-based mOR ***/N-C(FT)@500 also presents a better stability than Pt/C catalyst in the long-term mOR test at high current *** carbon monoxide(CO) poisoning,Cu/N-C(FT)@500 retains 96% of its mOR activity,far exceeding the performance of Pt/C catalyst(61% retention).Owing to its facile synthesis,outstanding activity,high stability and mechanical robustness,Cu/N-C(FT)@500 monolith is promising as a low-cost,efficient and CO-resistant electrocatalyst for mOR.

关键词： Copper nanocrystal methanol oxidation reaction Non-noble metal-based electrocatalysts Poison-resistant electrocatalysts Nitrogen-doped carbon

Association between Residential Greenness and Cardiometabolic Risk Factors among Adults in Rural Xinjiang Uygur Autonomous Region,China:A Cross-Sectional Study

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Biomedical and Environmental Sciences 2024年第10期37卷 1184-1194页

作者： Leyao jian Bo Yang Rulin ma Shuxia guo jia He Yu Li Yusong Ding Dongsheng Rui Yidan mao Xin He Xueying Sun Shengyu Liao Heng guo Department of Public Health Shihezi University School of MedicineShihezi 832000Xinjiang Uygur Autonomous RegionChina Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security the Xinjiang Production and Construction CorpsShihezi 832000Xinjiang Uygur Autonomous RegionChina NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases First Affiliated HospitalSchool of MedicineShihezi UniversityShihezi 832000Xinjiang Uygur Autonomous RegionChina

Objective This study aimed to explore the relationships between residential greenness and cardiometabolic risk factors among rural adults in Xinjiang Uygur Autonomous Region(Xinjiang)and thus provide a theoretical basis and data support for improving the health of residents in this *** We recruited 9,723 adult rural residents from the 51st Regiment of the Third Division of the Xinjiang Production and Construction Corps in September *** normalized difference vegetation index(NDVI)was used to estimate residential *** generalized linear mixed model(GLmm)was used to examine the association between residential greenness and cardiometabolic risk *** Higher residential greenness was associated with lower cardiometabolic risk factor *** adjustments were made for age,sex,education,and marital status,for each interquartile range(IQR)increase of NDVI500-m,the risk of hypertension was reduced by 10.3%(OR=0.897,95%CI=0.836-0.962),the risk of obesity by 20.5%(OR=0.795,95%CI=0.695-0.910),the risk of type 2 diabetes by 15.1%(OR=0.849,95%CI=0.740-0.974),and the risk of dyslipidemia by 10.5%(OR=0.895,95%CI=0.825-0.971).Risk factor aggregation was reduced by 20.4%(OR=0.796,95%CI=0.716-0.885)for the *** analysis showed that NDVI500-m was associated more strongly with hypertension,dyslipidemia,and risk factor aggregation among male *** association of NDVI500-m with type 2 diabetes was stronger among participants with a higher education ***10 and physical activity mediated 1.9%-9.2%of the associations between NDVI500-m and obesity,dyslipidemia,and risk factor *** Higher residential greenness has a protective effect against cardiometabolic risk factors among rural residents in *** the area of green space around residences is an effective measure to reduce the burden of cardiometabolic-related diseases among rural residents in Xinjiang.

关键词： Green space Cardiometabolic risk factors Cross-sectional study Rural adults

Three-dimensional biomagnetic maxwell fluid flow over a stretching surface in presence of heat source/sink

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International journal of Biomathematics 2019年第3期12卷 207-226页

作者： m.G.murtaza m.Ferdows j.C.misra E.E.Tzirtzilakis Research Group of Fluid Flow modeling and Simulation Department of Applied mathematics University of Dhaka Dhaka-1000 Bangladesh Centre for Theoretical Studies Indian Institute of Technology Kharagpur Kharagpur 721302 India Fluid Dynamics & Turbomachinery Laboratory Department of mechanical Engineering Technological Educational Institute of Western Greece 1 m. Aleksandrou Str Koukouli 26334 Patras Greece

The present paper deals with the study of three-dimensional boundary layer flow of biomagnetic maxwell fluid over a plane horizontal surface stretched linearly along two mutually perpendicular directions. Basic principles of magnetohydrodynamics (mHD) and ferro-hydrodynamics (FHD) have been employed. The effect of heat generation/absorption has been taken into consideration. The study is theoretical and is conducted by using a combination of approximate and numerical techniques. By using the method of similarity transformation, the governing nonlinear partial differential equations are converted into a set of coupled ordinary differential equations. In the sequel, a suitable numerical method has been developed to solve the coupled differential equations. The accuracy of the numerical method has been checked by comparing the numerical results with those of an earlier study reported in available literatures. Effects of various parameters involved in the study, viz. the magnetohydrodynamic and ferromagnetic parameters, Deborah number, stretching ratio and heat generation on the fluid flow profiles are investigated and the results have been presented graphically. Variations of the skin friction, heat transfer rate and relative wall pressure with change in hydrodynamic and ferromagnetic parameters have also been illustrated. It is found that due to the influence of the Kelvin force, the velocity component in xx-direction is greater than the corresponding one in the hydrodynamic case, but the opposite is true for the velocity component in the yy-direction. We also found that the temperature of the fluid for hydrodynamic flow is greater than that for mHD or FHD flow. It is even greater for BFD flows. The numerical results of the study reveal that the characteristics of blood flow are significantly affected by the presence of a magnetic field.

关键词： Biomagnetic fluid magnetic dipole magnetization heat transfer stretching surface