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Viologen derivatives with extendedπ-conjugation structures:From supra-/molecular building blocks to organic porous materials

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Chinese Chemical Letters 2020年第7期31卷 1757-1767页

作者： xiao-He Zhou Yu Fan wan-xia li xiang Zhang Rong-Ran liang Feng lin Tian-Guang Zhan Jiecheng Cui li-Juan liu Xin Zhao Kang-Da Zhang Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Life ScienceZhejiang Normal UniversityJinhua 321004China Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China College of Science Department of PhysicsShanghai UniversityShanghai 200444China College of Chemical Engineering Hunan Chemical Vocational Technology College.Zhuzhou 310027China

Recently,increasing atte ntion has been paid on extending theπ-conjugation structures ofviologens(1,1’-disubstituted-4,4’-bipyridylium salts)by incorporating planar aromatic units into the bipyridinium *** viologen derivative s with extendedπ-conjugation structures have been synthesized,including the N-termini aromatic substituted viologens,the extendedπ-conjugated viologens(denoted as ECVs)as well as theπ-conjugated oligomeric viologens(denoted as COVs).These compounds typically exhibit interesting properties distinguished from those of an isolated viologen unit,which make them as new class of electron deficient supra-/molecular building blocks in supramolecular chemistry and materials *** this review,we would like to highlight the recent advances of viologen derivatives with extendedπ-conjugation structures in versatile applications ranging from electrochromic and energy storage materials,the ECV/COV-based supramolecular self-assembly systems including the linear supramolecular polymers and 2D/3D supramolecular organic frameworks(SOFs),to the viologen-based covalent organic frameworks(COFs)/*** hope this review will serve as an in-time summary worthy of referring,more importantly,to provide inspiration in the rational design of novel molecules with unexplored properties and functions.

关键词： π-Conjugated viologens Self-assembly Supramolecular polymers Supramolecular organic frameworks Ionic organic porous materials

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Synergistic effect of bonding heterogeneity and phonon localization in introducing excellent thermoelectric properties in layered heteroanionic NdZnSbO material

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Journal of Energy Chemistry 2025年第1期100卷 259-272页

作者： Da wan Shuwei Tang Shulin Bai xiaodong li Peng Ai wanrong Guo Tuo Zheng College of Materials Science and Engineering Liaoning Technical University Faculty of Chemistry Northeast Normal University

Layered rare-earth metal oxides, harnessing the dual properties of oxides and two-dimensional layered materials, exhibit remarkable thermal stability and quantum confinement effects. Therefore, this work adopts the first-principles calculation combined with the Boltzmann transport theory to predict the thermoelectric properties of NdZnSbO compound. The coexistence of weak interlayer van der Waals interactions, robust intralayer ionic bonding, and partial covalent bonding leads to remarkable bonding heterogeneity, which engenders pronounced phonon scattering and imposes constraints on thermal transport along the out-of-plane direction. The weakened chemical bonds induced by the antibonding states, together with the rattling-like behavior of the Zn atom, culminate in the profound anharmonicity in the layered NdZnSbO compound. The weakening bond and heavy element contribute to the softness of phonon modes, which significantly diminishes the phonon group velocity. The redistribution-dominated four-phonon scattering process spans a large optical gap, which effectively reduces the lattice thermal conductivity. The NdZnSbO compound exhibits direct semiconductor characteristic with a bandgap of 0.73 e V by adopting the Heyd-Scuseria-Ernzerhof(HSE06) functional in combination with spin–orbit coupling(SOC) effect. The multi-valley feature of NdZnSbO compound augur favorably for band degeneracy, thus amplifying the power factor. Consequently, an optimal figure-of-merit(ZT) of 3.40 at 900 K is achieved for the n-type NdZnSbO compound. The present study delves deeply insights into the origins for the low thermal conductivity of NdZnSbO compound and proposes an optimization scheme to enhance overall thermoelectric performance.

关键词： Bond strength (chemical)

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乡村振兴内生动力:文化建构视角

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山东农业大学学报（社会科学版） 2022年第4期24卷 95-104页

作者：夏完立中共新邵县委党校湖南邵阳422000

乡村振兴内生动力,内化于村民对身份与利益的认同,外化为村民行为的一致性,村民之间的合作或曰拧成一股绳是乡村振兴内生动力形成的关键因素。文化建构视角下,行为体的行为既受利益的驱动也受身份的限制。身份和利益是行为体在长期互动... 详细信息

乡村振兴内生动力,内化于村民对身份与利益的认同,外化为村民行为的一致性,村民之间的合作或曰拧成一股绳是乡村振兴内生动力形成的关键因素。文化建构视角下,行为体的行为既受利益的驱动也受身份的限制。身份和利益是行为体在长期互动实践中形成的,这种互动实践过程也是行为体修正、转变甚至放弃私有观念进而形成共有观念,即文化结构形成的过程。文化结构形成后,会进一步强化行为体身份和利益认同,并约束行为体行为。目前,乡村存在两种典型的文化结构:冲突型文化结构和合作型文化结构。在这两种文化结构中,行为体无论是对身份和利益的认同,还是外在行为表现都是不同的。在合作型文化结构中,行为体偏向协调合作,村庄集体行为趋于一致,这有利于村庄内生动力的培育和提升;相反,在冲突型文化结构中,行为体偏向冲突不合作,村庄集体行为很难趋于一致,这有损村庄内生动力的培育和提升。虽然观念结构具有较高的稳定性,但是文化结构的转型是可行的。

关键词：乡村振兴内生动力文化结构文化建构乡村治理

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FOXP3基因在人类变应性鼻炎中的表达

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实用医学杂志 2010年第22期26卷 4065-4067页

作者：刘冰李晓瑜万礼霞济宁医学院附属医院耳鼻喉科 272029 山东济宁安康医院 272051

目的:应用寡聚核苷酸基因表达谱芯片研究FOXP3基因在人类变应性鼻炎中的表达。方法:应用包含14500条人类全长基因的寡聚核苷酸芯片HG-U133A2.0检测6例人类变应性鼻炎黏膜组织,6例正常鼻黏膜组织的基因表达谱,分析FOXP3基因差异表达的差... 详细信息

目的:应用寡聚核苷酸基因表达谱芯片研究FOXP3基因在人类变应性鼻炎中的表达。方法:应用包含14500条人类全长基因的寡聚核苷酸芯片HG-U133A2.0检测6例人类变应性鼻炎黏膜组织,6例正常鼻黏膜组织的基因表达谱,分析FOXP3基因差异表达的差异,并进行realtimeRT-PCR验证。结果:基因芯片筛选出FOXP3基因表达下调,实时荧光定量PCR测定FOXP3基因表达与基因芯片结果一致。结论:变应性鼻炎基因表达谱存在差异,FOXP3基因表达降低可能对人类变应性鼻炎的发病发挥作用。

关键词：鼻炎变应性季节性基因芯片叉头转录因子3

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Quantum public-key crypto via EPR pairs

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 58-63页

作者： xiang-Qun Fu Hong-Wei li Jian-Hong Shi Tan li wan-Su Bao Henan Key Laboratory of Quantum Information and Cryptography Information Engineering University Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China

With the development of quantum computing technology, quantum public-key cryptography is gradually becoming an alternative to the existing classical public-key cryptography. This paper designs a quantum trapdoor one-way function via EPR pairs and quantum measurements. Based on this, a new quantum public-key cryptosystem is presented, which offers forward security,and can resist the chosen-plaintext attack and chosen-ciphertext attack. Compared with the existing quantum public-key cryptos,eavesdropping can be automatically detected in this new quantum public-key cryptosystem under a necessary condition, which is also detailed in the paper.

关键词： quantum public-key crypto trapdoor one-way function EPR pairs

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交互式虚拟仿真系统在机械课程中的教学研究与实现

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科学与信息化 2024年第9期 126-128页

作者：夏婉莉北京铁路电气化学校北京 100000

随着科技水平的不断提高,我国机械行业得到了迅猛发展,相应的,企业的用人需求也越来越高.工科类中职院校为机械行业的一线岗位输送了大量人才,而机械课程作为重要的专业基础课,其中一些重点内容对于中职学生来说枯燥难懂,学生的理论与... 详细信息

随着科技水平的不断提高,我国机械行业得到了迅猛发展,相应的,企业的用人需求也越来越高.工科类中职院校为机械行业的一线岗位输送了大量人才,而机械课程作为重要的专业基础课,其中一些重点内容对于中职学生来说枯燥难懂,学生的理论与实践水平难以达成培养目标.近年来,虚拟仿真技术被应用在各行各业,在教学中将其与实训设备相结合,能够促进中职学生提高学习兴趣,提升实践能力,并能有效解决实训设备匮乏的问题,大大提升了机械课的教学效果.基于此,文章就交互式虚拟仿真系统在机械课程中的应用研究展开探讨.

关键词：减速器模拟仿真中职机械课程

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我国齿突蟾属(两栖纲:无尾目)资源现状及保护对策

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动物学杂志 2014年第3期49卷 357-365页

作者：万丽霞李宏伟孙立新窦静莉西北师范大学生命科学学院兰州730070

齿突蟾属物种已知19种左右,中国分布有16种。该属大多数物种为珍贵、稀有濒危物种。主要生活在高寒山区及高原地区,卵产于高寒缓流的山溪中。本文梳理了分布于我国齿突蟾物种的资源现状,分析了导致其种群下降的原因。并在此基础上提出... 详细信息

齿突蟾属物种已知19种左右,中国分布有16种。该属大多数物种为珍贵、稀有濒危物种。主要生活在高寒山区及高原地区,卵产于高寒缓流的山溪中。本文梳理了分布于我国齿突蟾物种的资源现状,分析了导致其种群下降的原因。并在此基础上提出了相应的保护对策,以期能对该属物种保护和资源利用起到参考作用。

关键词：齿突蟾资源现状保护对策

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濮阳县黄芩无公害栽培技术

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现代农业科技 2018年第10期 83-83,86页

作者：万利霞河南省濮阳县子岸镇农业服务中心河南濮阳457100

黄芩是一种常用中药材,是治疗温热发病类疾病的常用中成药的原料,市场用量较大。本文总结了濮阳县黄芩无公害栽培技术,包括选地整地、繁殖、田间管理、病虫害防治、收获加工等方面内容,以供种植户参考。

关键词：黄芩无公害栽培技术河南濮阳

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Mutual regulation of microglia and astrocytes after Gas6 inhibits spinal cord injury

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Neural Regeneration Research 2025年第2期20卷 557-573页

作者： Jiewen Chen xiaolin Zeng Le wang Wenwu Zhang Gang li Xing Cheng Peiqiang Su Yong wan xiang li Department of Spine Surgery The First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Guangdong Province Key Laboratory of Orthopedics and Traumatology GuangzhouGuangdong ProvinceChina

Invasive inflammation and excessive scar formation are the main reasons for the difficulty in repairing nervous tissue after spinal cord *** and astrocytes play key roles in the spinal cord injury micro-environment and share a close ***,the mechanisms involved remain *** this study,we found that after spinal cord injury,resting microglia(M0)were polarized into pro-inflammatory phenotypes(MG1 and MG3),while resting astrocytes were polarized into reactive and scar-forming *** expression of growth arrest-specific 6(Gas6)and its receptor Axl were significantly down-regulated in microglia and astrocytes after spinal cord *** vitro experiments showed that Gas6 had negative effects on the polarization of reactive astrocytes and pro-inflammatory microglia,and even inhibited the cross-regulation between *** further demonstrated that Gas6 can inhibit the polarization of reactive astrocytes by suppressing the activation of the Yes-associated protein signaling ***,in turn,inhibited the polarization of pro-inflammatory microglia by suppressing the activation of the nuclear factor-κB/p65 and Janus kinase/signal transducer and activator of transcription signaling *** vivo experiments showed that Gas6 inhibited the polarization of pro-inflammatory microglia and reactive astrocytes in the injured spinal cord,thereby promoting tissue repair and motor function ***,Gas6 may play a role in the treatment of spinal cord *** can inhibit the inflammatory pathway of microglia and polarization of astrocytes,attenuate the interaction between microglia and astrocytes in the inflammatory microenvironment,and thereby alleviate local inflammation and reduce scar formation in the spinal cord.

关键词： astrocytes Axl cell polarization Gas6 Hippo signal inflammatory micro-environment intercellular interaction microglia single-cell sequencing spinal cord injury

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Cholesterol metabolism: physiological versus pathological aspects in intracerebral hemorrhage

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Neural Regeneration Research 2025年第4期20卷 1015-1030页

作者： Ruoyu Huang Qiuyu Pang Lexin Zheng Jiaxi lin Hanxi li lingbo wan Tao wang Department of Forensic Science School of Basic Medicine and Biological SciencesSuzhou Medicine College of Soochow UniversitySuzhouJiangsu ProvinceChina

Cholesterol is an important component of plasma membranes and participates in many basic life functions,such as the maintenance of cell membrane stability,the synthesis of steroid hormones,and *** plays a key role in the establishment and maintenance of the central nervous *** brain contains 20%of the whole body’s cholesterol,80%of which is located within myelin.A huge number of processes(e.g.,the sterol regulatory element-binding protein pathway and liver X receptor pathway)participate in the regulation of cholesterol metabolism in the brain via mechanisms that include cholesterol biosynthesis,intracellular transport,and *** brain injuries or diseases involving crosstalk among the processes above can affect normal cholesterol metabolism to induce detrimental ***,we hypothesized that cholesterol-related molecules and pathways can serve as therapeutic targets for central nervous system *** hemorrhage is the most severe hemorrhagic stroke subtype,with high mortality and *** cholesterol levels are associated with the risk of intracerebral ***,secondary pathological changes after intracerebral hemorrhage are associated with cholesterol metabolism dysregulation,such as neuroinflammation,demyelination,and multiple types of programmed cell *** cholesterol accumulation in the brain has been found after intracerebral *** this paper,we review normal cholesterol metabolism in the central nervous system,the mechanisms known to participate in the disturbance of cholesterol metabolism after intracerebral hemorrhage,and the links between cholesterol metabolism and cell *** also review several possible and constructive therapeutic targets identified based on cholesterol metabolism to provide cholesterol-based perspectives and a reference for those interested in the treatment of intracerebral hemorrhage.

关键词： cell death cholesterol metabolism intracerebral hemorrhage myelination therapeutic target

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