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呼吸训练对痉挛型四肢瘫患儿步行耐力及平衡能力的疗效观察

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北京医学 2024年第5期46卷 395-400页

作者：岳青张通胡晓诗李思佳冯啊美周天添杨冰兵郭荣荣首都医科大学康复医学院北京100068 中国康复研究中心北京博爱医院儿童物理疗法科中国康复研究中心北京博爱医院神经康复科

目的探讨呼吸训练对痉挛型四肢瘫(spastic quadriplegia,SP)患儿步行耐力及平衡能力的影响。方法选取2021年11月至2023年11月中国康复研究中心北京博爱医院SP患儿60例,随机分为对照组(n=30)与试验组(n=30)。对照组接受常规康复训练(60 m... 详细信息

目的探讨呼吸训练对痉挛型四肢瘫(spastic quadriplegia,SP)患儿步行耐力及平衡能力的影响。方法选取2021年11月至2023年11月中国康复研究中心北京博爱医院SP患儿60例,随机分为对照组(n=30)与试验组(n=30)。对照组接受常规康复训练(60 min/次),试验组接受常规康复训练(40 min/次)和呼吸训练(20 min/次);两组训练频率为1次/d,5 d/周,连续4周。分别采用10米步行测试(10-meter work test,10MWT)速度、6分钟步行测试(6-minute walk test,6MWT)距离、Berg平衡量表(Berg balance scale,BBS)评分和肺活量(vital capacity,VC)、用力肺活量(forced vital capacity,FVC)、1秒用力呼气量(forced expiratory volume in first second,FEV1)、呼气峰值流速(peak expiratory flow,PEF)评估患儿训练前后步行耐力、平衡能力和肺功能。结果60例患儿中,男31例、女29例,年龄6~12岁,平均(9.0±1.7)岁。两组性别、年龄、粗大运动功能分级系统(gross motor function classification system,GMFCS)的比较,差异均无统计学意义(P>0.05)。训练4周后,两组患儿的6MWT距离、BBS评分、10MWT速度、FVC、FEV1、PEF均高于训练前,且试验组均高于对照组,差异有统计学意义(P<0.05)。结论呼吸训练能有效改善SP患儿的步行耐力、平衡能力,提高肺功能,增强有氧运动的耐力,降低跌倒风险,提高日常生活质量。

关键词：呼吸训练痉挛型四肢瘫步行耐力平衡能力儿童

Stimulating Start-up Investment Through Government-Sponsored Venture Capital: Theory and Chinese Evidence

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Journal of Systems Science & Complexity 2024年第5期37卷 2021-2053页

作者： NI Xuanming ZHENG tiantian GAO Feng ZHAO Huimin School of Software and Microelectronics Peking University School of Economics and Management Tsinghua University School of Business Sun Yat-sen University

Government-sponsored venture capital(GVC) has been used to support financially constrained start-ups as an important policy tool in China. Typically, to motivate the social capital to invest in start-ups, GVC provides subsidies for them to bridge the funding gap in the early-stage venture capital market. However, the effect and mechanism of GVC affecting social capital investment have not been clearly studied. In this paper, the authors not only develop a game model to analyze this issue in theory, but conduct an empirical study by analyzing the 14741 records matched by propensity score matching(PSM) of Chinese venture capital market data from 2011 to 2021. The proposed findings are as the follows. Firstly, the subsidies offered by GVC will simultaneously increase the returns and risks of investments in start-ups of social capital with more volatile incentive effect of GVC. The incentive effect of GVC is only effective when the returns resulting from the subsidies outweigh the risks they introduce. In the context of the Chinese venture capital market, the incentive effect of GVC is effective. Secondly, the incentive effect of GVC is more pronounced in high-tech industries, which can be attributed to the signaling effect facilitated by GVC. In this context, the subsidy mainly helps social capital to bear the costs associated with screening potential investments. Thirdly, the incentive effect of GVC is more significant in underdeveloped venture capital markets, which can be explained by the “virtuous cycle” effect, in which GVC plays a pioneering role in establishing a more robust early-stage market trading system. By examining these three points, this study contributes to a better understanding of how GVC can effectively guide social capital investment, especially in the Chinese landscape.

关键词： Government-sponsored venture capital fund incentive effect social capital subsidy venture capital

Mitochondrial targeting sequence of magnetoreceptor MagR:More than just targeting

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Zoological Research 2024年第3期45卷 468-477页

作者： Yanqi Zhang Peng Zhang Junjun Wang Jing Zhang Tianyang Tong Xiujuan zhou Yajie zhou Mengke Wei Chuanlin Feng Jinqian Li Xin Zhang Can Xie tiantian Cai High Magnetic Field Laboratory Hefei Institutes of Physical ScienceChinese Academy of SciencesHefeiAnhui 230031China University of Science and Technology of China HefeiAnhui 230026China Department of Anatomy School of Basic MedicineAnhui Medical UniversityHefeiAnhui 230032China Institutes of Physical Science and Information Technology Anhui UniversityHefeiAnhui 230039China Key Laboratory of Tropical Translational Medicine of Ministry of Education NHC Key Laboratory of Tropical Disease ControlSchool of Tropical Medicine and The Second Affiliated HospitalHainan Medical UniversityHaikouHainan 571199China International Magnetobiology Frontier Research Center Science IslandHefeiAnhui 230031China Institute of Quantum Sensing Zhejiang UniversityHangzhouZhejiang 310027China

Iron-sulfur clusters(ISC)are essential cofactors for proteins involved in various biological processes,such as electron transport,biosynthetic reactions,DNA repair,and gene expression *** assembly protein IscA1(or MagR)is found within the mitochondria of most ***(MagR)is a highly conserved A-type iron and iron-sulfur cluster-binding protein,characterized by two distinct types of iron-sulfur clusters,[2Fe-2S]and[3Fe-4S],each conferring unique magnetic *** forms a rod-like polymer structure in complex with photoreceptive cryptochrome(Cry)and serves as a putative magnetoreceptor for retrieving geomagnetic information in animal *** the N-terminal sequences of MagR vary among species,their specific function remains *** the present study,we found that the N-terminal sequences of pigeon MagR,previously thought to serve as a mitochondrial targeting signal(MTS),were not cleaved following mitochondrial entry but instead modulated the efficiency with which iron-sulfur clusters and irons are ***,the N-terminal region of MagR was required for the formation of a stable MagR/Cry ***,the N-terminal sequences in pigeon MagR fulfil more important functional roles than just mitochondrial *** results further extend our understanding of the function of MagR and provide new insights into the origin of magnetoreception from an evolutionary perspective.

关键词： Magnetoreceptor(MagR) N-terminal sequence Mitochondrial targeting signal Iron-sulfur cluster

Glutathione-depleted cyclodextrin pseudo-polyrotaxane nanoparticles for anti-inflammatory oxaliplatin(Ⅳ) prodrug delivery and enhanced colorectal cancer therapy

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Chinese Chemical Letters 2024年第4期35卷 280-286页

作者： Wenjia Wang Xingyue He Xiaojie Wang tiantian Zhao Osamu Muraoka Genzoh Tanabe Weijia Xie Tianjiao zhou Lei Xing Qingri Jin Hulin Jiang State Key Laboratory of Natural Medicines China Pharmaceutical UniversityNanjing 210009China Faculty of Pharmacy Kinki University HigashiosakaOsaka 577-8502Japan State Key Laboratory of Natural Medicines(SKLNM)and Department of Medicinal Chemistry School of PharmacyChina Pharmaceutical UniversityNanjing 210009China School of Pharmacy Hangzhou Medical CollegeHangzhou 311399China College of Pharmacy Yanbian UniversityYanji 133002China

Oxaliplatin(Oxa) is the first-line chemotherapeutic drug for the treatment of colorectal cancer(CRC). However, long-term Oxa chemotherapy can induce inflammation and increase the levels of cyclooxygenase-2(COX-2) and prostaglandin E2(PGE2), which can promote tumor metastasis. Moreover,high glutathione(GSH) levels in CRC cells significantly reduce Oxa sensitivity and seriously restrict the clinical application of Oxa. Herein, an Oxa(Ⅳ) prodrug with anti-inflammatory properties(desmethyl naproxe, DN) and GSH-depleting cyclodextrin pseudo-polyrotaxane carriers were prepared and further self-assembled into micellar nanoparticles(designated DNPt@PPRI). The relesae of DN from DNPt@PPRI can reduce the level of PGE2 to inhibit inflammation and tumor metastasis by decreasing COX-2 protein,and also synergize with Oxa to inhibit tumor. More importantly, GSH depletion can reduce the detoxification of Oxa and further enhance chemotherapy-induced apoptosis. DNPt@PPRI have a good GSH depletion ability to enhance the sensitivity of Oxa, indicating a potential in the synergistic chemotherapy and chemo-sensitization of colorectal cancer.

关键词： Oxaliplatin Glutathione depletion Tetravalent platinum prodrug Synergistic therapy Colorectal cancer

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民族传统音乐与当代城市精神建构

民俗研究 2021年第6期 126-134页

作者：周甜甜烟台大学音乐舞蹈学院山东烟台264005

城市精神是实现以人为本的高质量城镇化的重要元素,而民族传统音乐是构建城市精神的重要文化资源。民族传统音乐在丰富城镇休闲文化生活的同时,还有利于营造和谐、健康、文明的社会文化氛围,提高城市人文性、宜居性,进而提升城市艺术精... 详细信息

城市精神是实现以人为本的高质量城镇化的重要元素,而民族传统音乐是构建城市精神的重要文化资源。民族传统音乐在丰富城镇休闲文化生活的同时,还有利于营造和谐、健康、文明的社会文化氛围,提高城市人文性、宜居性,进而提升城市艺术精神。此外,民族传统音乐在延续城市文脉的同时,还有助于推动城市音乐传统、文化建设以及城市精神的扬弃、提炼与创新,提升城市的文化品位与格调,增强居民文化认同感,促进城市健康发展。

关键词：民族传统音乐城市精神音乐责任

Unexpected divergence in magnetoreceptor MagR from robin and pigeon linked to two sequence variations

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Zoological Research 2024年第1期45卷 69-78页

作者： Shun Wang Peng Zhang Fan Fei Tianyang Tong Xiujuan zhou Yajie zhou Jing Zhang Mengke Wei Yanqi Zhang Lei Zhang Yulong Huang Lin Zhang Xin Zhang tiantian Cai Can Xie Institutes of Physical Science and Information Technology Anhui UniversityHefeiAnhui 230039China High Magnetic Field Laboratory Hefei Institutes of Physical ScienceChinese Academy of SciencesScience IslandHefeiAnhui 230031China Science Island Branch of Graduate School University of Science and Technology of ChinaHefeiAnhui 230036China Department of Anatomy Anhui Medical UniversityHefeiAnhui 230032China Department of Mechanical and Aerospace Engineering University at BuffaloState University of New YorkBuffaloNY 14260 USA International Magnetobiology Frontier Research Center Science IslandHefeiAnhui 230031China

Birds exhibit extraordinary mobility and remarkable navigational skills,obtaining guidance cues from the Earth’s magnetic field for orientation and long-distance *** species also show tremendous diversity in navigation strategies,with considerable differences even within the same taxa and among individuals from the same *** highly conserved iron and iron-sulfur cluster binding magnetoreceptor(MagR)protein is suggested to enable animals,including birds,to detect the geomagnetic field and navigate ***,MagR is also implicated in other functions,such as electron transfer and biogenesis of iron-sulfur clusters,raising the question of whether variability exists in its biochemical and biophysical features among species,particularly *** the current study,we conducted a comparative analysis of MagR from two different bird species,including the migratory European robin(Erithacus rubecula)and the homing pigeon(Columba livia).Sequence alignment revealed an extremely high degree of similarity between the MagRs of these species,with only three sequence ***,two of these variations underpinned significant differences in metal binding capacity,oligomeric state,and magnetic *** findings offer compelling evidence for the marked differences in MagR between the two avian species,potentially explaining how a highly conserved protein can mediate such diverse functions.

关键词： Homing and migration Animal navigation Magnetoreceptor(MagR) Diverse navigation pattern Conserved protein

Exploring social-ecological system resilience in South China Karst:Quantification,interaction and policy implication

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Geography and Sustainability 2024年第2期5卷 289-301页

作者： tiantian Chen Yuxi Wang Li Peng Chongqing Key Laboratory of Surface Process and Ecological Restoration in the Three Gorges Reservoir Area Chongqing Normal UniversityChongqing 401331China Chongqing Field Observation and Research Station of Surface Ecological Process in the Three Gorges Reservoir Area Chongqing 401331China College of Geography and Resources Sichuan Normal UniversityChengdu 610066China

China’s Grain to Green Program(GTGP),which is one of the largest payments for ecosystem services(PES)in the world,has made significant ecological improvements to the ***,current understanding of its outcomes on the social-ecological system(SES)remains ***,taking the South China Karst as an example,a SES resilience evaluation index system was constructed followed by an exploratory spatial analysis,root mean square error,and Self-Organizing Feature Map to clarify the spatiotemporal changes and relationship of SES resilience,achieve the zoning of SES resilience and provide restoration *** results showed an upward trend in social resilience from 2000 to 2020,especially its subsystem of social *** ecological resilience was stable,owing to a slightly declined ecosystem services and increased landscape ***,nearly half of the counties exhibited a distribution mismatch in SES *** was an obvious inverted U-shaped relationship of SES resilience,indicating a clear threshold effect,and the constraint relation-ship of SES resilience eased over time,demonstrating the effectiveness of the ecological restoration *** played a positive role in reducing regional SES trade-off,but this positive effect was limited,reflecting the limitations of overemphasizing the conversion from farmland to forest and *** SES resilience can be divided into four clusters,which were the key optimization zone for social system,the SES resilience safety zone,the key restoration zone for SES resilience,and the key optimization zone for ecological *** adjustments for the GTGP in these zones should be taken to achieve maximum SES benefits in the future.

关键词： SES resilience Trade-off Clustering GTGP South China Karst

Development and identification of two novel wheat-rye 6R derivative lines with adult-plant resistance to powdery mildew and high-yielding potential

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The Crop Journal 2024年第1期12卷 308-313页

作者： Guohao Han Jing Wang Hanwen Yan tiantian Gu Lijun Cao Shiyu Liu Xiuquan Li Yilin zhou Jieru Fan Zhipeng Shi Hong Liu Lihui Li Diaoguo An Center for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021HebeiChina The National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China The State Key Laboratory for Biology of Plant Disease and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China

Powdery mildew,caused by Blumeria graminis ***(Bgt),is a devastating disease that seriously threatens wheat yield and *** control this disease,host resistance is the most effective *** with the resistance genes from common wheat,alien resistance genes can better withstand infection of this highly variable *** of elite alien germplasm resources with powdery mildew resistance and other key breeding traits is an attractive strategy in wheat *** this study,three wheat-rye germplasm lines YT4-1,YT4-2,and YT4-3 were developed through hybridization between octoploid triticale and common wheat,out of which the lines YT4-1 and YT4-2 conferred adult-plant resistance(APR)to powdery mildew while the line YT4-3 was susceptible to powdery mildew during all of its growth *** genomic in situ hybridization,multi-color fluorescence in situ hybridization,multi-color GISH,and molecular marker analysis,YT4-1,YT4-2,and YT4-3 were shown to be cytogenetically stable wheat-rye 6R addition and T1RS.1BL translocation line,6RL ditelosomic addition and T1RS.1BL translocation line,and T1RS.1BL translocation line,*** with previously reported wheat-rye derivative lines carrying chromosome 6R,YT4-1 and YT4-2 showed stable APR without undesirable pleiotropic effects on agronomic ***,these novel wheat-rye 6R derivative lines are expected to be promising bridge resources in wheat disease breeding.

关键词： Powdery mildew Secale cereale Triticum aestivum Wheat-rye 6R derivatives Agronomic performance

何处是岸:当代青年“上岸”思潮建构与自我生平实践反思

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中国青年研究 2023年第12期 76-85页

作者：周恬恬苗国江苏第二师范学院、江苏省教师培训中心江苏省社会科学院区域现代化研究院

“上岸”作为当代青年在“内卷式奋斗”与“佛系式躺平”之间寻求暂时平衡与稳定的权宜之计,是青年在文凭通胀、就业难和个体发展路径不确定性激增的背景下,走向成年个体、探索自我生平的“悬浮”之旅,也是在生命事件“夹缝”中形成自... 详细信息

“上岸”作为当代青年在“内卷式奋斗”与“佛系式躺平”之间寻求暂时平衡与稳定的权宜之计,是青年在文凭通胀、就业难和个体发展路径不确定性激增的背景下,走向成年个体、探索自我生平的“悬浮”之旅,也是在生命事件“夹缝”中形成自我身份认同与成年社会角色的“两难”之旅。青年在社会时间表与制度结构中,发挥自主性与反思性建构个人生命历程,探索生活方式,寻找人生的意义与价值。面对“岸”的想象和现实困境,社会应当给予青年试错与探索的机会,营造包容友好的社会氛围,帮助青年寻找“生活之趣”,拓宽“人生之岸”。

关键词：上岸个体化成年初显期