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Progressive meristem and single-cell transcriptomes reveal the regulatory mechanisms underlying maize inflorescence development and sex differentiation

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Molecular Plant 2024年第7期17卷 1019-1037页

作者： Yonghao Sun Liang Dong lu kang Wanshun Zhong David Jackson Fang Yang National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Laboratory Wuhan 430070China Cold Spring Harbor Laboratory Cold Spring HarborNY 11724USA School of Agriculture Sun Yat-Sen UniversityShenzhen 518107China

Maize develops separate ear and tassel inflorescences with initially similar morphology but ultimately different architecture and *** detailed regulatory mechanisms underlying these changes still remain largely *** this study,through analyzing the time-course meristem transcriptomes and floret single-cell transcriptomes of ear and tassel,we revealed the regulatory dynamics and pathways underlying inflorescence development and sex *** identified 16 diverse gene clusters with differential spatiotemporal expression patterns and revealed biased regulation of redox,programmed cell death,and hormone signals during meristem differentiation between ear and ***,based on their dynamic expression patterns,we revealed the roles of two RNA-binding proteins in regulating inflorescence meristem activity and axillary meristem ***,using the transcriptional profiles of 53910 single cells,we uncovered the cellular heterogeneity between ear and tassel *** found that multiple signals associatedwith either enhancedcell death or reduced growth are responsiblefortassel pistil suppression,while part of the gibberellic acid signal may act non-cell-autonomously to regulate ear stamen arrest during sex *** further showed that the pistil-protection gene SILKLESS 1(SK1)functions antagonistically to the known pistil-suppression genes through regulating common molecular pathways,and constructed a regulatory network for pistil-fate ***,our study provides a deep understanding of the regulatory mechanisms underlying inflorescence development and sex differentiation in maize,laying the foundation for identifying new regulators and pathways for maize hybrid breeding and improvement.

关键词： maize inflorescence floral organ sex differentiation single-cell RNA sequencing RNA-binding protein

Regulating ion transport behaviors toward dendrite-free potassium metal batteries:recent advances and perspectives

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Rare Metals 2024年第4期43卷 1435-1460页

作者： lu-kang Zhao Xuan-Wen Gao Tian-Zhen Ren Da Wang Da-Wei Wang Zhao-Meng Liu Hong Chen Wen-Bin luo School of Metallurgy Northeastern UniversityShenyang110819China School of Chemical Engineering The University of New South WalesSydneyNSW2052Australia

With abundant potassium resources and high capacity,potassium metal batteries(PMBs)present a compelling option for the next generation of energy storage ***,PMBs suffer from an unstable anode interface caused by uncontrolled dendrite growth,which results in unsatisfactory cyclability and safety *** investigations suggest that significant progress has been made in enhancing the interfacial stability of *** various effective strategies for stabilizing interfaces can ultimately be attributed to the regulation of the sluggish ion transfer kinetics and irregular deposition,i.e.,the arrangement of ion transport behaviors at the *** modulation of ions transport rate and ions deposition directions makes it possible to obtain a dendrite-free and smooth deposition ***,the influencing factors and action mechanism of K^(+)interface transport behaviors are discussed to understand the nature of material design for constructing stable anode interfaces,including regulating the solvation and desolvation structures,accelerating K^(+)transport kinetics and controlling K^(+)deposition *** addition,the deficiencies and prospects of the research on electrolyte,separators and designed electrode involved in the manufacturing and testing and ion transport process of PMBs are *** review is expected to provide some possible directions for constructing dendrite-free interfaces in advanced PMBs-related research and offer significant insights for prospective experimental research and commercial applications.

关键词： Ion transport rate Ion transport direction Interface Potassium metal batteries Dendrites growth

An ultrafast rechargeable hybrid potassium dual-ion capacitor based on carbon quantum dot@ultrathin carbon film cathode

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Rare Metals 2024年第10期43卷 5070-5081页

作者： Zhao-Meng Liu Da Wang Shang-Zhuo Li Qing-Song Lai Dong-Run Yang lu-kang Zhao Jian-Jia Mu Xuan-Chen Wang Xuan-Wen Gao Wen-Bin luo Institute for Energy Electrochemistry and Urban Mines Metallurgy School of MetallurgyNortheastern University Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai University

Ultrafast rechargeable hybrid potassium dualion capacitors （HPDICs） were designed by employing carbon quantum dot@ultrathin carbon film （CQD@CF） as the cathode *** designed CQD@CF is selfassembled by a simple catalytic graphitization route followed by an acid leaching *** special composite features a large adsorption interface,a remarkable anion hybrid storage capability and outstanding structure *** electrochemical performance of CQD@CF composite is fully tapped in a half-cell system at the operating voltage between 1.4 and 4.5 V,achieving an admirable specific discharge capacity of 128.5 mAh·g-1a 50 mA·g-1,an ultra-high capacity retention ratio of 97.97% after cycling 5000 times at 1000 mA·g-1and a 96.10%high capacity retention ratio after cycling 40,000 times at 5000 mA·g-1,***,with the support of ex situ TEM and XPS,the structural stability principle and anionic hybrid storage mechanism of CQD@CF electrode are investigated *** the full-cell system,HPDICs with the CQD@CF as cathode and nanographite powder as anode also present a 141.5 Wh·kg-1high energy density,a 5850 W·kg-1power density and a super-long cycle stability (90.2% capacity retention ratio after cycling 30,000 times at 5000 mA·g-1).

关键词： Anion hybrid storage mechanism Carbon quantum dots Potassium dual ion capacitor Ultrafast rechargeable Ultrathin carbon film

Realizing a dendrite-free metallic-potassium anode using reactive prewetting chemistry

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eScience 2024年第2期4卷 108-116页

作者： lu-kang Zhao Xuan-Wen Gao Qinfen Gu Xiaochen Ge Zhimin Ding Zhaomeng Liu Wen-Bin luo Institute for Energy Electrochemistry and Urban Mines Metallurgy School of MetallurgyNortheastern UniversityShenyang 110819China Australian Synchrotron(ANSTO) 800 Blackburn RdClaytonVictoria 3168Australia School of Metallurgy and Environment Central South UniversityChangsha 410083China

Potassium metal batteries(PMBs)have become a paramount alternative energy storage technology to lithium-ion batteries,due to their low cost and potential energy ***,uncontrolled dendrite growth interferes with the stability of the interfacial anode,leading to significant capacity degradation and safety ***,a facile reactive prewetting strategy is proposed to discourage dendrite growth by constructing a functional KF/Znrich hybrid interface layer on K *** KF/Zn@K anode design functions like an interconnected paddy field,stabilizing the anode interface through the preferential redistribution of Kþflux/electrons,continuous transport paths,and enhanced transport *** anticipated,symmetrical batteries exhibit an extended cycling lifetime of over 2000 h,with reduced voltage hysteresis at 0.5 mA cm^(-2) and 0.5 mAh cm^(-2).Furthermore,when the KF/Zn@K anode is applied to full batteries coupled with PTCDA,a boosted reversible capacity of 61.6 mAh g1 at 5 C is present over 3000 *** interfacial control creates rational possibilities for constructing highefficiency,stable K metal anodes.

关键词： Potassium metal battery Potassium dendrite Interface Artificial interface layer

电影文本的情感认知路径——基于格雷戈·史密斯“情绪―线索”理论的探讨

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北京电影学院学报 2024年第7期 25-35页

作者：卢康成都大学中国-东盟艺术学院影视与动画学院

电影情感研究是当代电影认知主义理论的热点议题之一。本文以格雷戈·史密斯的理论著作为基础,结合其他认知理论家电影情感研究成果,从电影情感范畴的辨析谈起,对既挑战精神分析学说情感理论,又挑战其他认知理论家工作的“情绪―线索”... 详细信息

电影情感研究是当代电影认知主义理论的热点议题之一。本文以格雷戈·史密斯的理论著作为基础,结合其他认知理论家电影情感研究成果,从电影情感范畴的辨析谈起,对既挑战精神分析学说情感理论,又挑战其他认知理论家工作的“情绪―线索”理论进行深入探讨。与其他认知理论家从人类普遍情感中区分出“认知性情感”,围绕着类型、叙事、角色等进行电影情感解读的做法不同,史密斯结合跨学科的神经心理学、脑科学成果,重置了认知先于情感的传统观念,从而建构了基于联想的人类情感运作模型,并提出情感是短暂的爆发,情绪才是观众情感体验得以维持的基础。电影的主要情感效果是创造情绪,电影文本中包括演员表情与动作、对话与语调、场景设计与调度、镜头运用与剪辑等一系列视听系统,以信息冗余的形式,为观众提供了具有共同情感指向的多种体验路径的情绪线索。

关键词：电影情感研究情绪―线索认知主义格雷戈·史密斯

Clinical Practice of Evidence-Based PDCA Cycle Management Model in Accelerated Recovery of lung Cancer Patients

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Journal of Cancer Therapy 2024年第4期15卷 130-140页

作者： lu kang Juan Yuan Dandan Liu Bo Deng Sun Yat-sen University Cancer Center Guangzhou China

Objective: To explore the nursing effect of evidence-based PDCA cycle management mode in accelerated rehabilitation of patients undergoing thoracoscopic lung cancer radical surgery. Methods: 104 patients who underwent thoracoscopic lung cancer radical surgery in our hospital from June 2022 to February 2023 were randomly divided into control group and intervention group, with 52 cases in each group. The control group implemented evidence-based ERAS clinical pathway management, while the intervention group implemented evidence-based PDCA cycle quality management. The postoperative recovery of the two groups of patients was compared. Results: The postoperative recovery of the intervention group was significantly better than that of the control group. The first time to get out of bed, the first time to eat, the duration of chest drainage tube placement, and the length of hospital stay were significantly shorter than those of the control group. The incidence of postoperative chest complications and hospitalization costs were significantly lower than those of the control group, and patient satisfaction was significantly higher than that of the control group (P Conclusion: Evidence-based PDCA cycle quality management mode can effectively improve the implementation quality of accelerated rehabilitation nursing for patients undergoing thoracoscopic lung cancer radical surgery, and it is worthy of clinical promotion.

关键词： Evidence-Based PDCA Cycle Thoracoscopic lung Cancer Radical Surgery Accelerated Rehabilitation

Nano-Se and GSH Combined Foliar Application Enhances Cucumber Resistance to Botrytis cinerea by Promoting Cucurbitacin Biosynthesis through JA Signal Transfer Activation

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Nano-Se and GSH Combined Foliar Application Enhances Cucumbe...

中国植物病理学会2024年学术年会

作者： JIA Yujiao CHEN Lanqi kang lu FU Xiaorui ZHENG Shuyang WANG Ping PAN Canping Innovation Center of Pesticide Research Department of Applied ChemistryCollege of ScienceChina Agricultural University

To elucidate the effect of Nano-Se and GSH(SeG) exogenous bio-enhancement on cucumber's resistance to Botrytis cinerea(***) infection,we conducted an in-depth study to explore its mec^*** analysis encompassed transcriptome and metabolome analysis,detection of antioxidant enzyme activity,staining studies,and illness index *** results indicate that leaf application of SeG significantly enhances cucumber growth,increases photosynthetic pigment levels and capacity,and reduces the incidence rate by 41.9% after *** linolenic acid metabolicpathway triggered by SeG activates genes associated with Jasmonic acid(JA),including LOX(210%),LOX4(430%),AOS1(100%),and AOC2(120%).With strengthened JA signal transduction,the expression of cucurbitacin synthesis-related genes OSC(107.5%),P450(440.8%,31.6%),and ACT(414.0%) is activated,thereby promoting the accumulation of cucurbitacin.L-phenylalanine(67.5%),P-coumaric acid(144.8%),sinapic acid(49.0%),and ferulic acid(8.4%) were among the other lignin precursors *** activities of APX(81.7%),MDHAR(43.4%),and GSH-Px(60.5%),essential antioxidant enzymes in the ASA-GSH cycle,display varying degrees of *** summary,SeG bio-enhancement activates the AsA-GSH cycle,boosts the activity of antioxidant enzymes,enhances JA signal transduction,facilitates the accumulation of cucurbit and lignin precursor compounds,thereby enhancing cucumber's resistance to ***.

关键词： Nano-Se GSH Induced resistance Jasmonic acid Cucurbitacin B.cinerea

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AI背景下UI设计研究与实践

艺术科技 2024年第11期37卷 131-133页

作者：康璐新智惠想科技〔天津〕有限公司天津300074

目的:在AI技术迅猛发展的背景下,文章探讨其可能带来的行业变革,并为UI设计领域引入一种新的高效设计方法。方法:文章探讨AIGC在UI设计中的应用及其对设计效率的影响。研究方法上,通过对设计师使用AIGC工具前后效率的对比,以及用户对AIG... 详细信息

目的:在AI技术迅猛发展的背景下,文章探讨其可能带来的行业变革,并为UI设计领域引入一种新的高效设计方法。方法:文章探讨AIGC在UI设计中的应用及其对设计效率的影响。研究方法上,通过对设计师使用AIGC工具前后效率的对比,以及用户对AIGC设计作品使用量的调查,来评估AIGC在UI设计中的实际应用效果。并通过实际案例探究如何将AI技术应用到UI设计工作中。结果:研究发现,将AI技术用于用户行为分析、语音交互、无障碍设计等方面,能显著提高UI设计效率,同时用户对AIGC设计的界面接受度也较高。UI设计师可从执行者转变为策略家和创意指导者,专注于优化用户体验。结论:数字时代,设计不仅仅是一种艺术形式,更是一种科学实践,是设计理念和方法的革新。它为设计师提供了更广阔的视野和更强大的工具,也为用户带来了更加丰富和个性化的体验。然而,设计师的直觉、情感和创新思维仍然是不可替代的,AI只是作为设计师的助手,扩展他们的能力和视野。随着AI技术的不断发展,两者结合的潜力将得到进一步挖掘,设计师需要适应新技术,积极拥抱AI,同时保持批判性思维,确保科技的进步能真正服务于设计质量的提升和用户体验的优化。

关键词： AI UI设计用户体验

火电厂汽轮机超速事故的根本原因分析与改进措施

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