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Dynamic aggregation of carbon dots self-stabilizes symmetry breaking for exceptional hydrogen production with near-infrared light

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Aggregate 2024年第1期5卷 385-397页

作者： Qi zhang Ya zhang Hu Shi hongxia zhang Jianghong Zhao Zhanfeng Zheng Hengquan Yang Pengju Yang School of Chemistry and Chemical Engineering Shanxi UniversityTaiyuanChina Engineering Research Center of Ministry of Education for Fine Chemicals Shanxi UniversityTaiyuanChina Institute of Molecular Science Shanxi UniversityTaiyuanChina State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuanChina

Developing new photosystems that integrate broad-band near-infrared(NIR)light harvesting and efficient charge separation is a long-sought goal in the photocatalytic *** this work,we develop a novel photochemical strategy to prepare light-active carbon dots(CDs)under room temperature and discover that the aggregation of CDs can broaden the light absorption to the NIR region due to the electronic couplings between neighboring ***,the dynamic noncovalent interactions within CD aggregates can stabilize symmetry breaking and thus induce large dipole moments for charge separation and ***,the weak non-covalent interactions allow for flexible design of the aggregated degrees and the local electronic structures of CD aggregates,further strengthening NIR-light harvesting and charge separation *** a result,the CD aggregates achieve a record apparent quantum yield of 13.5%at 800 nm,which is one of the best-reported values for NIR-light-driven hydrogen photosynthesis to ***,we have prepared a series of different CDs and also observed that these CDs after aggregation all exhibit outstanding NIR-responsive photocatalytic hydrogen production activity,suggesting the universality of aggregation-enhanced *** discovery opens a new promising platform for using CD aggregates as efficient light absorbers for solar conversion.

关键词： aggregation charge separation hydrogen production near-infrared light photocatalysis

Research progress of heterogeneous structure magnesium alloys:A review

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Journal of Magnesium and Alloys 2024年第6期12卷 2147-2181页

作者： Xiang Chen Junlei zhang Min Wang Weizhang Wang Di Zhao Haiming Huang Qi Zhao Xiaofei Xu hongxia zhang Guangsheng Huang Hubei Longzhong Laboratory Wuhan University of Technology Xiangyang Demonstration ZoneXiangyang 441000China College of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China College of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China Hubei Key Laboratory of Energy Storage and Power Battery(Hubei University of Automotive Technology) Shiyan 442002China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China School of Mechanical Engineering Suzhou University of Science and TechnologySuzhou 215009China

In recent years,a new class of metallic materials featuring heterogeneous structures has *** materials consist of distinct soft and hard domains with significant differences in mechanical properties,allowing them to maintain high strength while offering superior ***(Mg)alloys,renowned for their low density,high specific strength,exceptional vibration damping,and electromagnetic shielding properties,exhibit tremendous potential as lightweight and functional *** their advantageous properties,high-strength Mg alloys often suffer from limited ***,the emergence of heterogeneous materials provides a fresh perspective for the development of Mg alloys with both high strength and *** article provided a fundamental overview of heterostructured materials and systematically reviewed the recent research progress in the design of Mg alloys with strength-ductility balance based on heterostructure *** review encompassed various aspects,including preparation methods,formation mechanisms of diverse heterostructures,and mechanical properties,both within domestic and international *** this basis,the article discussed the challenges encountered in the design and fabrication of heterostructured Mg alloys,as well as the urgent issues that require attention and resolution in the future.©2024 Chongqing *** services provided by Elsevier *** behalf of KeAi Communications ***.

关键词： Mg alloys Heterogeneous structure Processing techniques Strength and ductility Hetero-deformation induced stress Strain gradient

RNF6 promotes chronic myelogenous leukemia cell proliferation and migration by stabilizing vimentin via multiple atypical ubiquitinations

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Genes & Diseases 2024年第1期11卷 87-90页

作者： hongxia zhang Yueya Zhong Yuanming He Yujia Xu Ying Ren Haixia Zhuang Tong Sun Zhigang Zhu Xinliang Mao Institute of Clinical Pharmacology Science and Technology Innovation CenterGuangzhou University of Chinese MedicineGuangzhouGuangdong 510403China Guangdong Provincial Key Laboratory of Protein Modification and Degradation School of Basic Medical SciencesGuangzhou Medical UniversityGuangzhouGuangdong 511436China Department of Pharmacology College of Pharmaceutical SciencesSoochow UniversitySuzhouJiangsu 215123China Division of Hematology&Oncology Department of GeriatricsGuangzhou First People's HospitalCollege of MedicineSouth China University of TechnologyGuangzhouGuangdong 510180China

Chronic myelogenous leukemia(CML)is a malignancy from bone marrow myeloid stem cells mainly driven by the fusion gene *** addition to BCR-ABL,other genes including RNF6 are also dysregulated in CML cells.1 RNF6,a ubiquitin ligase of the RING family,promotes various cancer cell proliferation,chemoresistance,and tumor growth in vivo by targeting various proteins for ubiquitination and degradation,including SHP1,TLE3,FOXA1,and MAD1.^(2) However,its specific mechanism in CML is not known.

关键词： ubiquitin myelogenous leukemia

Woven fabric triboelectric nanogenerators for human-computer interaction and physical health monitoring

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Nano Research 2024年第6期17卷 5540-5548页

作者： Yu Miao Mengjuan Zhou Jia Yi Yanyan Wang Guangjin Tian hongxia zhang Wenlong Huang Wenhao Wang Ronghui Wu Liyun Ma College of Textile and Clothing Xinjiang UniversityUrumqi 830046China College of Textiles Donghua UniversityShanghai 201620China College of Physics Xiamen UniversityXiamen 201620China Department of Bioengineering Imperial College LondonLondon SW72AZUK

Triboelectric nanogenerator(TENG)converts mechanical energy into valuable electrical energy,offering a solution for future energy *** an indispensable part of TENG,textile TENG(T-TENG)has incredible advantages in harvesting biomechanical energy and physiological signal ***,the application of T-TENG is restricted,partly because the fabric structure parameter and structure on T-TENG performance have not been fully *** study comprehensively investigates the effect of weaving structure on fabric TENGs(F-TENGs)for direct-weaving yarn TENGs and post-coating fabric *** direct-weaving F-TENGs,a single-yarn TENG(Y-TENG)with a core-sheath structure is fabricated using conductive yarn as the core layer yarn and polytetrafluoroethylene(PTFE)filaments as the sheath *** fabrics with five different sets of parameters were designed and *** post-coating F-TENGs,fabrics with weaving structures of plain,twill,satin,and reinforced twill were fabricated and coated with conductive silver ***,the twill F-TENGs have the best electrical outputs,followed by the satin F-TENGs and plain weave ***,the increase of the Y-TENG gap spacing was demonstrated to improve the electrical output ***,T-TENGs are demonstrated for human-computer interaction and self-powered real-time *** systematic work provides guidance for the future T-TENG’s design.

关键词： single-yarn triboelectric nanogenerators woven fabric triboelectric nanogenerators fabric weaving structures and parameters human-computer interaction physical health monitoring

Genome-Wide Exploration of the Grape GLR Gene Family and Differential Responses of VvGLR3.1 and VvGLR3.2 to Low Temperature and Salt Stress

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Phyton-International Journal of Experimental Botany 2024年第3期93卷 533-549页

作者： Honghui Sun Ruichao Liu Yueting Qi Hongsheng Gao Xueting Wang Ning Jiang Xiaotong Guo hongxia zhang Chunyan Yu The Engineering Research Institute of Agriculture and Forestry Ludong UniversityYantai264025China College of Agriculture Ludong UniversityYantai264025China

Grapes,one of the oldest tree species globally,are rich in ***,environmental conditions such as low temperature and soil salinization signiﬁcantly affect grape yield and *** glutamate receptor(GLR)family,comprising highly conserved ligand-gated ion channels,regulates plant growth and development in response to *** this study,11 members of the VvGLR gene family in grapes were identiﬁed using whole-genome sequence *** methods were employed to analyze the basic physical and chemical properties,phylogenetic trees,conserved domains,motifs,expression patterns,and evolutionary *** and collinear analyses revealed that the VvGLRs were divided into three subgroups,showing the high conservation of the grape GLR *** members exhibited 2 glutamate receptor binding regions(GABAb and GluR)and 3-4 transmembrane regions(M1,M2,M3,and M4).Real-time quantitative PCR analysis demonstrated the sensitivity of all VvGLRs to low temperature and salt *** localization studies in Nicotiana tabacum veriﬁed that VvGLR3.1 and VvGLR3.2 proteins were located on the cell membrane and cell ***,yeast transformation experiments conﬁrmed the functionality of VvGLR3.1 and VvGLR3.2 in response to low temperature and salt ***ﬁndings highlight the signiﬁcant role of the GLR family,a highly conserved group of ion channels,in enhancing grape stress *** study offers new insights into the grape GLR gene family,providing fundamental knowledge for further functional analysis and breeding of stress-resistant grapevines.

关键词： Genome-wide identiﬁcation glutamate receptor(GLR)family low temperature stress salt stress grape

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氨基酸高产菌株创制的关键技术

生物工程学报 2024年第6期40卷 1711-1727页

作者：郭亮高熙张红霞山西师范大学生命科学学院山西太原030031 山西省微生物应用技术工程研究中心山西太原030031

氨基酸是构成蛋白质的基本单元,被广泛应用于食品、医药、饲料和化工等多个领域。利用微生物细胞工厂生产氨基酸,具备原料可再生、生产过程条件温和、产品纯度高、环境污染小等优点,能够助力实现碳中和。借助代谢工程和合成生物学技术,... 详细信息

氨基酸是构成蛋白质的基本单元,被广泛应用于食品、医药、饲料和化工等多个领域。利用微生物细胞工厂生产氨基酸,具备原料可再生、生产过程条件温和、产品纯度高、环境污染小等优点,能够助力实现碳中和。借助代谢工程和合成生物学技术,对大肠杆菌(Escherichia coli)和谷氨酸棒杆菌(Corynebacterium glutamicum)进行定向设计、改造与优化,创制了高产氨基酸的微生物细胞工厂,实现了支链氨基酸、天冬氨酸族氨基酸、谷氨酸族氨基酸和芳香族氨基酸的生物炼制。本文对高产氨基酸的大肠杆菌细胞工厂和谷氨酸棒杆菌细胞工厂创制过程进行分析,以期对高性能微生物细胞工厂的创制提供参考。

关键词：微生物细胞工厂支链氨基酸天冬氨酸族氨基酸谷氨酸族氨基酸芳香族氨基酸

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骨质疏松性椎体压缩性骨折病人术后快速康复标准化方案的构建

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护理研究 2024年第6期38卷 984-990页

作者：赵娟张红霞张璐项红霞新乡市中心医院新乡医学院第四临床学院河南453000

目的:构建骨质疏松性椎体压缩性骨折(OVCF)病人术后快速康复标准化方案。方法:进行系统的文献回顾,基于循证结果制定OVCF病人术后快速康复标准化方案初稿,采用专家函询法构建OVCF病人术后快速康复标准化方案终稿。结果:共进行2轮专家函... 详细信息

目的:构建骨质疏松性椎体压缩性骨折(OVCF)病人术后快速康复标准化方案。方法:进行系统的文献回顾,基于循证结果制定OVCF病人术后快速康复标准化方案初稿,采用专家函询法构建OVCF病人术后快速康复标准化方案终稿。结果:共进行2轮专家函询,问卷回收率均为100%,专家权威系数分别为0.817和0.826,肯德尔和谐系数分别为0.250和0.337(均P<0.001)。第2轮专家函询后指标变异系数均<0.200,最终构建的OVCF病人术后快速康复标准化方案包括5个一级指标(健康宣教及心理干预、药物干预、术后疼痛及饮食管理、术后康复训练、术后并发症预防)、11个二级指标、31个三级指标。结论:构建的OVCF病人术后快速康复标准化方案系统、具体,方法科学,结论可靠。

关键词：骨质疏松性椎体压缩性骨折(OVCF) 快速康复德尔菲法护理

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溯源与正本:关于“过程性评价”的再认识

教育发展研究 2024年第12期44卷 43-53页

作者：张红霞刘志军河南大学教育考试与评价研究院开封475004

文章基于对“过程性评价”在政策术语与学术术语语境下的考察,揭示了过程性评价的“全过程论”“单一过程论”“双重过程论”,以及过程性评价和形成性评价的“替代说”“混同说”“差异说”等认识问题。通过对过程性评价及其相关概念的... 详细信息

文章基于对“过程性评价”在政策术语与学术术语语境下的考察,揭示了过程性评价的“全过程论”“单一过程论”“双重过程论”,以及过程性评价和形成性评价的“替代说”“混同说”“差异说”等认识问题。通过对过程性评价及其相关概念的溯源考察,历经滥觞、转向、消弭、融合等发展阶段,研究认为,过程性评价中的“过程”是一种相对时间意义上的理解,过程性评价和形成性评价虽然具有天然的联系性,但两者本质上是时间意义和价值意义上的区别,而过程性评价和结果性评价看似有着明显的区别,但两者在作用指向上具有高度联系性,可以在形成性评价或总结性评价中实现相依交融。最后,过程性评价在实践中的践行要略包括:准确把握评价价值定位,重点聚焦典型行为表现,持续完善反思性自我评价机制,技术赋能实现精准改进。

关键词：过程性评价形成性评价结果性评价总结性评价

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核算理论的回顾与我国投入产出核算的改革

计量经济学报 2024年第2期4卷 407-424页

作者：夏明张红霞中国人民大学应用经济学院北京100872

投入产出数据作为国民账户体系(System of National Accounts,SNA)中产业数据的核心,是经济结构分析的重要数据基础.目前国家统计局已开始了对我国投入产出核算方法的改革.在此背景下,本文系统归纳并分析了SNA核算思想从早期英美主导向... 详细信息

投入产出数据作为国民账户体系(System of National Accounts,SNA)中产业数据的核心,是经济结构分析的重要数据基础.目前国家统计局已开始了对我国投入产出核算方法的改革.在此背景下,本文系统归纳并分析了SNA核算思想从早期英美主导向后期欧洲主导转变过程中在核算框架上表现出的主要特征.分析表明分歧的焦点主要集中在生产核算上,进而导致了投入产出核算的引入及后来的发展.沿着这样的理论路径才能更好理解投入产出核算方法变化和欧美不同做法背后的原因,从而正确认识当前形势下我国投入产出核算方法改革对于我国整体核算框架的完善,以及服务于我国经济结构转型分析所具有的理论和实践意义,并进一步明确改革的路径和方向.在上述分析基础上,基于我国实际并借鉴国外做法,为我国投入产出核算的改革提出建议.

关键词：国民账户体系投入产出核算供给使用表