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Resilience and response:Unveiling the impacts of extreme droughts on forests through integrated dendrochronological and remote sensing analyses

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Forest Ecosystems 2024年第4期11卷 491-501页

作者： Han Shi Xi Peng Yong-Jiao zhou Ai-Ying Wang Xue-Kai Sun na Li Quan-Sheng Bao Gude Buri Guang-You Hao CAS Key Laboratory of Forest Ecology and Silviculture Institute of Applied EcologyChinese Academy of SciencesShenyang110016China Daqinggou Ecological Research Station Institute of Applied EcologyChinese Academy of SciencesShenyang110016China University of Chinese Academy of Sciences Beijing100049China School of Life Science and Engineering Shenyang UniversityShenyang110044China Wudantala Forestry Forestry and Grassland Administration of Horqin Northeast CountyTongliao028100China

Extreme droughts are anticipated to have detrimental impacts on forest ecosystems,especially in water-limited regions,due to the influence of climate ***,considerable uncertainty remains regarding the patterns in species-specific responses to extreme ***,we conducted a study integrating dendrochronology and remote sensing methods to investigate the mosaic-distributed maple-oak(native)natural forests and poplar plantations(introduced)in the Horqin Sandy Land,Northeast *** assessed the impacts of extreme droughts on tree performances by measuring interannual variations in radial growth and vegetation *** results showed that precipitation and self-calibrated palmer drought severity index(scPDSI)are the major factors influencing tree-ring width index(RWI)and normalized difference vegetation index(NDVI).The severe droughts between 2000 and 2004 resulted in reduced RWI in the three studied tree species as well as led to NDVI reductions in both the maple-oak natural forests and the poplar *** RWI reached the nadir during the2000-2004 severe droughts and remained at low levels two years after the severe drought,creating a legacy *** contrast to the lack of significant correlation between RWI and scPDSI,NDVI exhibited a significant positive correlation with scPDSI indicating the greater sensitivity of canopy performance to droughts than radial ***,interspecific differences in RWI and NDVI responses were observed,with the fast-growing poplar species experiencing a more significant RWI decrease and more negative NDVI anomaly during severe droughts than native species,highlighting the species-specific trade-offs between drought resilience and growth *** study emphasizes the importance of combining tree-level radial growth with landscape-scale canopy remote sensing to understand forest resilience and *** study improves our understanding of forest responses to extreme drought and highlights species di

关键词： Introduced tree species native tree species NDVI Severe drought Tree-ring width

Analysis on the rules of prescriptions for ischemic stroke based on the traditional Chinese medicine inheritance auxiliary system

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Drug Combination Therapy 2019年第2期1卷 65-74页

作者： Jing-na zhou Zi-Qi Jing Xin-Zhe Zhao Guo-Wei Zhang College of Traditional Chinese Medicine Hebei UniversityBaodingHebei province071000China

In China,traditional Chinese medicine is widely used in the treatment of ischemic stroke,but its prescription rules needs to be further *** paper uses the traditional Chinese medicine inheritance auxiliary system(a software)to analyze the composition rules of a large number of prescriptions for the treatment of ischemic stroke,and discusses the clinical rationality of the new *** found that the prescriptions for the treatment of ischemic stroke are mainly composed by herbs for promoting blood circulation and removing blood stasis,dredging collaterals and tonifying deficiency,and some of the new prescriptions are also in line with this *** paper can provide reference for clinical prescription in the treatment of ischemic stroke and the development of related new drugs.

关键词： Ischemic stroke Traditional Chinese medicine inheritance auxiliary system Prescription rule Promoting blood circulation and removing blood stasis

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社区公益券:社区治理的新抓手

四川师范大学学报（社会科学版） 2018年第2期45卷 34-39页

作者：张必春周娜华中师范大学政治与国际关系学院武汉430079 华中师范大学湖北城市社区建设研究中心武汉430079

社区是社会的细胞,在推进国家治理体系与治理能力现代化的背景下,首当其冲的是要推进社区治理体系与治理能力现代化。然而,当前,社区治理却面临着无意愿、无主体、无动力、无方法、无资源的"五无"难题。通过社区公益券的积分获取、兑换... 详细信息

社区是社会的细胞,在推进国家治理体系与治理能力现代化的背景下,首当其冲的是要推进社区治理体系与治理能力现代化。然而,当前,社区治理却面临着无意愿、无主体、无动力、无方法、无资源的"五无"难题。通过社区公益券的积分获取、兑换和流通,解决社区治理难题,为当前社区治理的推进提供了一个新抓手。

关键词：社区治理社区公益券积分兑换机制

重庆高山地区烟草-萝卜高效栽培模式试验初报

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南方农业 2024年第17期18卷 16-19,25页

作者：陆景伟杨仕春甘得军王鹤冰周娜罗云米陶伟林曾志红重庆市农业科学院重庆401329 江津区农业农村委员会重庆江津402260 酉阳县农业农村委员会重庆酉阳409800

重庆高山烟草栽培方式为传统单季种植模式,9月至翌年4月土地基本空闲。基于此,采用圆白萝卜与云烟85互作方式,进行烟草—萝卜高效栽培模式试验探讨,结果表明:1)烟菜套作模式下,秋雪、糖晶等萝卜品种适宜于本地区种植,最佳播期为8月上中... 详细信息

重庆高山烟草栽培方式为传统单季种植模式,9月至翌年4月土地基本空闲。基于此,采用圆白萝卜与云烟85互作方式,进行烟草—萝卜高效栽培模式试验探讨,结果表明:1)烟菜套作模式下,秋雪、糖晶等萝卜品种适宜于本地区种植,最佳播期为8月上中旬;2)烟草(云烟85)与糖晶萝卜套作模式下,7月下旬至8月上中旬播种的萝卜产量均高于萝卜单作,增加177.5~385.3 kg/667 m^(2),但6月播种的萝卜产量低于萝卜单作;3)烟草(云烟85)与糖晶萝卜套作增产效果好于烟草(云烟85)与糖晶萝卜轮作,套作或轮作增产效果均好于萝卜单作。最后,结合试验分析了烟草—萝卜高效栽培模式的综合效益,提出了重庆高山地区烟草—萝卜高效栽培的技术要点。

关键词：萝卜烟草烟菜栽培模式套作轮作重庆高山地区

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外周血单个核细胞介导的HBV宫内垂直传播

中国免疫学杂志 2014年第7期30卷 946-949页

作者：周娜王健安徽理工大学医学院病原学与免疫学教研室淮南232001

目的:探讨HBV感染外周血单个核细胞在介导乙肝病毒母婴传播中的作用。方法:以Ficoll-Hypaque常规分离、纯化孕妇外周血单个核细胞(PBMCs)和新生儿脐血单个核细胞(CBMCs),PCR法检测孕妇外周血和新生儿脐血HBVDna。结果:HBeAg(+)孕妇血清... 详细信息

目的:探讨HBV感染外周血单个核细胞在介导乙肝病毒母婴传播中的作用。方法:以Ficoll-Hypaque常规分离、纯化孕妇外周血单个核细胞(PBMCs)和新生儿脐血单个核细胞(CBMCs),PCR法检测孕妇外周血和新生儿脐血HBVDna。结果:HBeAg(+)孕妇血清和PBMCs内HBV-Dna检出率分别为100.00%(25/25)和72.00%(18/25),其新生儿脐血血清和CBMCs内HBV-Dna检出率分别为60.00%(15/25)和44.00%(11/25),与HBeAg(-)组相比差异有显著性(Pna阳检率均较高,与其他组相比,差异有显著性(P<0.05)。结论:HBV不仅可通过血清介导HBV宫内垂直传播,还可侵染外周血单个核细胞,并通过外周血单个核细胞→脐血单个核细胞途径介导HBV宫内垂直传播。

关键词：外周血单个核细胞脐血单个核细胞 HBV 宫内感染垂直传播

Current Status and Main Scientific Results of In-flight CSES Mission

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空间科学学报 2020年第5期40卷 662-678页

作者： SHEN Xuhui ZEREN Zhima HUANG Jianping YANG Yanyan ZHAO Shufan YAN Rui ZHANG Zhenxia LIU Dapeng WANG Qiao CHU Wei LU Hengxin XU Song GUO Feng TAN Qiao LI Wenjing zhou na SONG Fuxi Institute of Crustal Dynamics China Earthquake AdministrationBeijing 100085

The CSES(China Seismo-Electromagnetic Satellite)is the electromagnetism satellite of China’s Zhangheng mission which is planned to launch a series of microsatellites within next 10 years in order to monitor the electromagnetic environment,gravitational *** CSES 01 probe(also called ZH-1)was launched successfully on 2 February 2018,from the Jiuquan Satellite Launch Centre(China)and is expected to operate for 5 years in *** second probe CSES 02 is going to be launched in *** scientific objectives of CSES are to detect the electromagnetic field and waves,plasma and particles,for studying the seismic-associated *** meet the requirements of scientific objective,the satellite is designed to be in a sun-synchronous orbit with a high inclination of 97.4°at an altitude around 507 *** carries nine scientific payloads including Search-coil magnetometer,Electric Field Detector,High precision Magnetometer,GNSS occultation Receiver,Plasma Analyzer,Langmuir Probe,two Energetic Particle Detectors(including an Italian one),and Tri-Band *** to now,CSES has been operating in orbit for 2 years with stable and reliable *** using all kinds of data acquired by CSES,we have undertaken a series of scientific researches in the field of global geomagnetic field re-building,the ionospheric variation environment,waves,and particle precipitations under disturbed space weather and earthquake activities,the Lithosphere-Atmosphere-Ionosphere coupling mechanism research and so on.

关键词： CSES mission Magnetic field model Waves Particles LAIC Geomagnetic storm

Alterations in Serum Lipids and Lipoproteins Induced by Neoadjuvant Chemotherapy in Patients with Osteosarcoma around the Knee Joint:A Retrospective Analysis

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当代医学科学（英文） 2024年第4期44卷 741-747页

作者： Su-guo WANG Yong-gang WANG Guo-wei QIAN Li-na TANG Xin zhou Dong-dong CHENG Chen-liang zhou Qing-cheng YANG Zan SHEN Gao-zhong HUANG Hong-tao LI Department of General Medicine Shenzhen Third People's Hospital Shenzhen 518112China Department of VIP Clinic Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai 200233China Department of Oncology Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai 200233China Cancer Research Institute of Jilin University the First Hospital of Jilin UniversityChangchun 130021China Department of Orthopedics Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai 200233China Department of VIP Clinic Shanghai Jiao Tong University Affiliated Sixth People's HospitalShanghai 200233China

Objective:To investigate the serum lipid profiles of patients with localized osteosarcoma around the knee joint before and after neoadjuvant ***:After retrospectively screening the data of 742 patients between January 2007 and July 2020,50 patients aged 13 to 39 years with Enneking stage Ⅱ disease were included in the *** lipid levels,including total cholesterol(TC),triglycerides(TG),high-density lipoprotein cholesterol(HDL-C),low-density lipoprotein cholesterol(LDL-C),lipoprotein-α[Lp(a)],and apolipoprotein Al,B,and E(ApoA1,ApoB,and ApoE),and clinicopathological characteristics were collected before and after neoadjuvant ***:The mean levels of TC,TG,and ApoB were significantly increased following neoadjuvant chemotherapy(16％,38％,and 20％,respectively,*** values;P＜0.01).The mean levels of LDL-C and ApoE were also 19％and 16％higher,respectively(P＜0.05).No correlation was found between the pretreatment lipid profile and the histologic response to *** increase in Lp(a)was strongly correlated with the Ki-67 index(R=0.31,P=0.023).Moreover,a trend toward longer disease-free survival(DFS)was observed in patients with decreased TG and increased LDL-C following chemotherapy,although this difference was not statistically significant(P=0.23 and P=0.24,respectively).Conclusion:Significant elevations in serum lipids were observed after neoadjuvant chemotherapy in patients with localized *** was no prognostic significance of pretreatment serum lipid levels on histologic response to neoadjuvant *** scale of increase in serum Lp(a)might have a potential prognostic role in *** with increased LDL-C or reduced TG after chemotherapy seem to exhibit a trend toward favorable DFS.

关键词： neoadjuvant chemotherapy osteosarcoma serum lipids

Microstructure and room temperature fracture toughness of Nb-Si-based alloys with Sr addition

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Rare Metals 2024年第8期43卷 3904-3912页

作者： Yong-Lin Huang Li-na Jia Bin Kong Yue-Ling Guo na Wang School of Materials Science and Engineering Beihang UniversityBeijing 100191China

Nb-Si-based alloys show great potential to surpass the widely used Ni-based *** element Sr is widely applied in aluminum and magnesium alloys,but reports about the effects of Sr on Nb-Si-based alloys are quite ***,Nb-Si-based alloys with nominal compositions of Nb-15Si-24Ti-4Cr-2Al-2Hf-0/0.05/0.15Sr(at%)were prepared by directional solidification and heat *** microstructural characterization and room temperature fracture toughness of Nb-Si-based alloy were systematically *** show that all these alloys consist of Nb_5Si_3 phase embedded within Nb solid solution(Nb_(ss)) *** Nb_(5)Si_(3) phase becomes refined and more discontinuous after adding minor *** for the fracture toughness,0.05 at% and 0.15 at% Sr additions do not cause significant *** discontinuous and refining mechanism of Sr element was studied,and the analysis of toughness decreasing with Sr addition reveals that the size of Nb_(ss) phase plays a crucial role in determining the fracture toughness.

关键词： Nb-Si alloy Refinement Discontinuous Fracture toughness Nb_(ss)

Anomalies of Precipitation over China on Days with Tropical Cyclone Activity over the Bay of Bengal: Role of Moisture Transport

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Journal of Meteorological Research 2024年第2期38卷 368-382页

作者： na WEI Ying LI Xiaoting FAN nanjing Joint Institute for Atmospheric Sciences Nanjing 210041 State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing 100081 Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences Fudan UniversityShanghai 200433

Tropical cyclones over the Bay of Bengal(BoBTC)affect the precipitation over China,with distinct seasonal and daily *** study quantitatively examines the daily standardized precipitation anomalies(SPAs)over China on the days with BoBTC activities(storm-days)and related circulations,based on rainfall measurements at surface meteorological stations and ECMWF reanalysis data on a 0.25°×0.25°resolution during *** positive SPA is found over the stations in the two adjacent regions around BoB(Southwest China in May/November and southern Tibetan Plateau in October)and three distant regions(Southeast China and the northeastern boundary of the Qinghai-Tibet Plateau in May,and central North China in October).The SPA distributions are remarkably consistent with the integrated water vapor transport(IVT)*** IVT is found associated with the interaction between southwesterly(southerly)of the BoBTC circulation and low-level monsoonal flow in May(midlevel westerly in winter months).The probabilities of extreme precipitation(EP)occurrences over the above regions all increase on *** adjacent regions,EP is significantly correlated with the northward IVT anomalies to the east of BoBTC circulation,which strengthen the water vapor input through the southern *** IVT anomalies are stronger in May,benefited by the deep monsoonal southwesterlies than those in *** distant regions,EP is more closely related to the IVT anomaly extending back from *** moisture from BoB concentrates along a local low-level convergence line over Southeast China,being further facilitated by coexistence of the BoBTC depression and midlevel westerly trough in *** results highlight the interactions between BoBTCs and local weather systems that influence the general precipitation anomalies and occurrence of EP over China,especially over distant regions.

关键词： tropical cyclone Bay of Bengal precipitation anomaly moisture transport