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Climate warming is significantly influenced by rising summer maximum temperatures: insights from tree-ring evidence of the Western Tianshan Mountains, China

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Journal of Forestry Research 2024年第5期35卷 47-59页

作者： Meng ren Yu Liu Qiufang Cai Qiang Li Huiming Song Changfeng Sun The State Key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi’an 710061People’s Republic of China Xi’an Institute for Innovative Earth Environment Research Xi’an 710061People’s Republic of China Institute of Desert Meteorology China Meteorological AdministrationÜrümqi 830002People’s Republic of China Center for Excellence in Quaternary Science and Global Change Chinese Academy of SciencesXi’an 710061People’s Republic of China School of Human Settlements and Civil Engineering Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China Qingdao National Laboratory for Marine Science and Technology Qingdao 266237People’s Republic of China

As one of the regions most affected by global cli-mate warming,the Tianshan mountains has experienced sev-eral ecological crises,including retreating glaciers and water *** warming in these mountains is considered mainly to be caused by increases in minimum temperatures and winter temperatures,while the influence of maximum temperatures is *** this study,a 300-year tree-ring chronology developed from the Western Tianshan Moun-tains was used to reconstruct the summer(June-August)maximum temperature(T_(max6-8))variations from 1718 to *** reconstruction explained 53.1% of the variance in the observed T_(max6-8).Over the past 300 years,the T_(max6-8)reconstruction showed clear interannual and decadal *** was a significant warming trend(0.18°C/decade)after the 1950s,which was close to the increasing rates of the minimum and mean *** increase in maximum temperature was also present over the whole Tianshan mountains and its impact on climate warming has *** T_(max6-8) variations in the Western Tianshan mountains were influenced by frequent volcanic eruptions combined with the influence of solar activity and the sum-mer North Atlantic *** study reveals that cli-mate warming is significantly influenced by the increase in maximum temperatures and clarifies possible driving mech-anisms of temperature variations in the Western Tianshan mountains which should aid climate predictions.

关键词： Tree rings Western Tianshan mountains Temperature change Climate warming

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Familial Parkinson's Disease-Associated L166P Mutant DJ-1 is Cleaved by Mitochondrial Serine Protease Omi/HtrA2

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Neuroscience Bulletin 2017年第6期33卷 685-694页

作者： Kai Fu Yanfei Wang Dongkai Guo Guanghui Wang Haigang ren Laboratory of Molecular Neuropathology Jiangsu Key Laboratory of Translational Research and Therapy for Neuropsychiatric Disorders Department of PharmacologyCollege of Pharmaceutical Sciences Soochow University Institute of Precision Medicine Xiangya Hospital Xiangya Medical School Central South University

Parkinson＇s disease（PD） is the most common neurodegenerative movement disorder. Mutations in the DJ-1, including L166 P, are responsible for recessive earlyonset PD. Many lines of evidence have shown that L166 P is not only a loss-of-function mutant, but also a proapoptotic-like protein that results in mitochondrial dysfunction. L166 P has been reported to be unstable and to mislocalize to mitochondria. However, the mechanisms underlying the instability of L166 P compared to wild-type DJ-1 remain largely unknown. Here, we showed that Omi/Htr A2, a mitochondrial serine protease that has also been linked to the pathogenesis of PD, contributed to L166 P instability. Omi directly interacted with and cleaved L166 P in mitochondria to decrease the L166 P level. However,Omi did not bind and cleave wild-type DJ-1. Moreover,Omi cleaved L166 P at both serine residues 3 and 121,while L166 P-induced cell death under H_2O_2 treatment was alleviated by over-expression of Omi. Our data reveal a bridge between DJ-1 and Omi, two PD-associated geneticfactors, which contributes to our understanding of the pathogenesis of PD.

关键词： Parkinson’s disease DJ-1 L166P Instability Omi/HtrA2 Cleavage

All-Biobased Hydrovoltaic-Photovoltaic Electricity Generators for All-Weather Energy Harvesting

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Research 2023年第1期2022卷 51-62页

作者： Guoping ren Qichang Hu Jie Ye Andong Hu Jian Li Shungui Zhou College of Resources and Environment Fujian Agriculture and Forestry UniversityFuzhouChina College of Mechanical and Electrical Engineering Fujian Agriculture and Forestry UniversityFuzhouChina

Hygroelectricity generators(HEGs)utilize the latent heat stored in environmental moisture for electricity generation,but nevertheless are showing relatively low power densities due to their weak energy harvesting *** by epiphytes that absorb ambient moisture and concurrently capture sunlight for dynamic photosynthesis,we propose herein a scenario of all-biobased hydrovoltaic-photovoltaic electricity generators(HPEGs)that integrate photosystem II(PSII)with Geobacter sulfurreducens(G.s)for simultaneous energy harvesting from both moisture and *** proof of concept illustrates that the all-biobased HPEG generates steady hygroelectricity induced by moisture absorption and meanwhile creates a photovoltaic electric field which further strengthens electricity generation under *** environmental conditions,the synergic hydrovoltaic-photovoltaic effect in HPEGs has resulted in a continuous output power with a high density of 1.24 W/m^(2),surpassing ali HEGs reported *** work thus provides a feasible strategy for boosting electricity generation via simultaneous energy harvesting from ambient moisture and sunlight.

关键词： ambient proof utilize

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王逢诗文序跋的艺术特色及文体学价值

河北学刊 2019年第5期39卷 139-144页

作者：任文京河北大学新闻传播学院

王逢是元末明初的著名诗人,其诗文序跋记录了王朝鼎革之际频繁的战乱给人民带来的深重灾难,赞颂了坚贞不屈的节士和效命疆场的将帅,褒扬忠孝节义,实为一个时代的缩影。王逢的诗文序跋记述历史事件条理清晰,场面描写真实,人物形象生动,... 详细信息

王逢是元末明初的著名诗人,其诗文序跋记录了王朝鼎革之际频繁的战乱给人民带来的深重灾难,赞颂了坚贞不屈的节士和效命疆场的将帅,褒扬忠孝节义,实为一个时代的缩影。王逢的诗文序跋记述历史事件条理清晰,场面描写真实,人物形象生动,呈现出沉郁苍凉和豪迈雄壮的艺术特色。王逢的诗文序跋佐辅多种文体,形式多样,长短自如,特色鲜明,发挥了多方面的功能,在诗文序跋发展演变史上具有重要的价值和意义。

关键词：王逢诗文序跋艺术特色文体学价值

创造“中国性”:国标舞艺术表演舞的舞台实践与文化逻辑

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北京舞蹈学院学报 2023年第4期 33-40页

作者：任文惠北京舞蹈学院人文学院北京100081

国标舞艺术表演舞是国家艺术组织、学科体制、舞蹈比赛评价体系多重力量发展下的产物,其发生尽管带有西方表演舞的共通性,但始终伴随着在世界语境中建构中国形象的文化使命。艺术表演舞通过经典改编的文化隐喻、中国元素的国潮赋形、现... 详细信息

国标舞艺术表演舞是国家艺术组织、学科体制、舞蹈比赛评价体系多重力量发展下的产物,其发生尽管带有西方表演舞的共通性,但始终伴随着在世界语境中建构中国形象的文化使命。艺术表演舞通过经典改编的文化隐喻、中国元素的国潮赋形、现实主义的表意优先、红色文化的精神浸润等“中国性”舞台实践方式,最终达成中国国标舞自身文化主体性的建构诉求,体现中国当代舞蹈艺术共同的价值追求。

关键词：国标舞艺术表演舞中国性文化主体性

腓肠肌肌球蛋白收缩功能在有氧训练后的变化(英文)

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中国组织工程研究与临床康复 2007年第10期11卷 1996-2000页

作者：任文君西安交通大学体育部生物医学信息工程教育部重点实验室西安交通大学生命科学与技术学院陕西省西安市710049

背景:已有实验证实长期耐力训练能导致肌纤维及其肌球蛋白重链异形体由快型向慢型转变,但对于运动训练中肌球蛋白重链异形体mRNA的变化仍有待进一步的实验观察与验证。目的:观察跑台训练对雄性SD大鼠腓肠肌肌球蛋白收缩功能的影响。设计... 详细信息

背景:已有实验证实长期耐力训练能导致肌纤维及其肌球蛋白重链异形体由快型向慢型转变,但对于运动训练中肌球蛋白重链异形体mRNA的变化仍有待进一步的实验观察与验证。目的:观察跑台训练对雄性SD大鼠腓肠肌肌球蛋白收缩功能的影响。设计:随机对照动物实验。单位:西安交通大学医学实验中心。材料:选用40只生后7周雄性SD大鼠,体质量(230±16)g,所有动物实验前均未进行过跑台运动。试剂:一抗为鼠源性抗骨骼肌肌动蛋白及快缩型肌球蛋白重链(MHCⅡ)单克隆抗体,ABCam产品。二抗为偶合碱性磷酸酶的抗鼠IgG,SIGMA产品。方法:实验于2005-03/10在西安交通大学医学实验中心完成。随机摸球法将大鼠分为对照组(n=10)和训练组(n=30)。训练组大鼠进行连续4～6周强度约为75%VO2max(18.5～24m/min,坡度为0°)的跑台训练,50min/次,2次/d。对照组自由活动,不给予任何干预措施。训练至4,5,6周,分别取10只大鼠,采用反转录聚合酶链式反应腓肠肌肌球蛋白重链mRNA含量,以免疫组化方法检测肌球蛋白肌纤维的改变情况及横截面积的大小,大鼠麻醉后游离腓肠肌,采用张力传感器及电刺激器给予方波脉冲刺激,逐步拉伸腓肠肌至等长收缩张力为最大时的肌肉初长Lmax位置,平衡10min,记录肌肉长度与张力。取右侧腓肠肌称量湿质量,计算其与体质量之比。肌肉质量与体质量之比按下式计算:肌肉质量(mg)/体质量(g)×100%。主要观察指标:①腓肠肌肌球蛋白重链mRNA含量。②肌球蛋白肌纤维的改变情况及横截面积的大小。③大鼠体质量与腓肠肌质量的变化。④腓肠肌等长收缩最大张力。结果:纳入大鼠40只全部进入结果分析。①腓肠肌肌球蛋白重链mRNA含量:经过4周耐力训练,训练组肌球蛋白总肌球蛋白重链表达是对照组的105%(P<0.01),肌球蛋白重链Ⅱa表达量高于对照组(1.27±0.08,1.17±0.06,P<0.05),肌球蛋白重链ⅡxmRNA表达量高于对照组(1.29±0.04,1.19±0.05,P<0.01)。②肌球蛋白肌纤维的改变情况及横截面积的大小:经过4～6周的有氧训练后,大鼠肌球蛋白重链主要以Ⅱ型慢缩型肌纤维表达为主,而Ⅰ型快缩型肌纤维表达较少。对照组大鼠腓肠肌Ⅰ、Ⅱ型肌纤维横截面积分别为(1958.0±30.5),(1656.1±35.3)mm2。而训练组4周后Ⅰ、Ⅱ型肌纤维横截面积较对照组分别增加24.5%与22.1%(P<0.01);训练组5周后分别增加26.4%与51.5%(P<0.01),训练组训练6周后分别增加33.2%与48.9%(P<0.01)。③大鼠体质量与腓肠肌质量的变化:训练组大鼠训练4,5,6周腓肠肌湿质量分别为(135.6±3.1),(139.2±5.1),(148.4±6.2)mg,高于对照组[(103.2±3.4),(87.5±2.9),(68.3±3.3)mg,P<0.01]。训练组大鼠训练4,5,6周腓肠肌相对湿质量分别为(0.55±0.01),(0.56±0.02),(0.59±0.03),高于对照组[(0.43±0.02),(0.37±0.04),(0.29±0.05),P<0.05～0.01]。④腓肠肌等长收缩最大张力:方波脉冲刺激后6周训练组等长收缩最大张力较对照组显著增加(P<0.01)。结论:短期耐力训练后,肌球蛋白重链中的两种慢型肌球蛋白重链异形体-肌球蛋白重链Ⅱx、肌球蛋白重链Ⅱb基因表达增加,肌纤维横截面积增加,等长收缩最大张力增加,表明有氧训练对提高肌球蛋白收缩功能有促进作用。

关键词：有氧运动肌球蛋白 mRNA 收缩功能腓肠肌

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殷璠《河岳英灵集》品藻的价值与影响

河北学刊 2018年第2期38卷 99-104页

作者：任文京河北大学新闻传播学院

殷璠《河岳英灵集》是经典性的唐诗选本,其中的品藻在选本经典化过程中发挥了重要作用。品藻最初只是品评鉴定人物才行,后来转向品评文人创作。殷璠将品藻和选本相结合,创造出一种新的选本体式,在唐诗选本发展史上具有里程碑的意义。《... 详细信息

殷璠《河岳英灵集》是经典性的唐诗选本,其中的品藻在选本经典化过程中发挥了重要作用。品藻最初只是品评鉴定人物才行,后来转向品评文人创作。殷璠将品藻和选本相结合,创造出一种新的选本体式,在唐诗选本发展史上具有里程碑的意义。《河岳英灵集》品藻价值有三：一是精准允当地揭示了诗人的独特风格;二是厘清了有关诗人的创作轨迹,并对诗风的转捩作了明晰的判定;三是公正客观,不随意抬高或任意贬低。殷璠品藻对后世产生了广泛的影响,唐诗选家、唐诗人传记作家以及诗话家,凡涉及品评盛唐诗人,都不同程度地引述了殷璠的品藻,或重新诠释,或增补新意,共同促进并最终确立了《河岳英灵集》的经典地位。

关键词：《河岳英灵集》品藻价值影响经典

A topology control algorithm based on D-region fault tolerance

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Science China(Information Sciences) 2013年第7期56卷 33-41页

作者： SUN RuoZi WANG Yue YUAN Jian SHAN XiuMing ren Yong Department of Electronic Engineering Tsinghua University Deparment of Applied Mathematics Harbin University of Science and Technology

In a wireless network, node failure due to either natural disasters or human intervention can cause network partitioning and other communication problems. For this reason, a wireless network should be fault tolerant. At present, most researchers use k-connectivity to measure fault tolerance, which requires the network to be connected after the failure of any up to k-1 nodes. However, wireless network node failures are usually spatially related, and particularly in military applications, nodes from the same limited area can fail together. As a metric of fault-tolerance, k-connectivity fails to capture the spatial relativity of faults and hardly satisfies the fault tolerance requirements of a wireless network design. In this paper, a new metric of fault-tolerance, termed D-region fault tolerance, is introduced to measure wireless network fault tolerance. A D-region fault tolerant network means that even after all the nodes have failed in a circular region with diameter D, it still remains connected. Based on D-region fault tolerance, we propose two fault-tolerant topology control algorithms--the global region fault tolerance algorithm (GRFT) and the localized region fault tolerance algorithm (LRFT). It is theoretically proven that both algorithms are able to generate a network with D-region fault tolerance. Simulation results indicate that with the same fault tolerance capabilities, networks based on both GRFT and LRFT algorithms have a lower transmission radius and lower logical degree.

关键词： fault tolerance connectivity spatial relativity topology control

Monepaloside K, a New Triterpenoid Saponin from Morina nepalensis var. alba Hand. - Mazz.

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Chinese Chemical Letters 2002年第3期13卷 251-252页

作者： Rong Wei TENG De Zu WANG Chong ren YANG Kunming Institute of Botany CASKunming 650204

One new triterpenoid saponin, monepaloside K (1) was isolated from the water-soluble part of the whole plant of a famous Tibetan medicinal herb, morina nepalensis var. alba Hand.-Mazz.. Its structure was determined to be 3-O-a-L-arabinopyranosyl-(13)-b-D- xylopyranosyl siaresinolic acid on the basis of spectroscopic evidences, especially 2D NMR techniques.

关键词： Morina nepalensis var. alba Dipsacaceae monepaloside K 2D NMR techniques.