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New insight into the origin and evolution of the flora and fauna of Hainan Island,China

Science China Earth Sciences 2025年第1期68卷 52-61页

作者： Hua zhu Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesYunnan International Joint Laboratory of Southeast Asia Biodiversity ConservationYunnan Key Laboratory for the Conservation of Tropical Rainforests and Asian ElephantsMengla666303China

The origin of the biota of Hainan Island,China,remains a fundamental scientific *** studies on the biota,geological tectonics,and paleomagnetism proposed that during the Eocene,Hainan Island connected Vietnam and Guangxi,and then moved to the southeast to reach its present *** review mainly discusses its biota origin from molecular phylogeny and palaeobotanical *** formation and evolution of the biological groups of Hainan Island were identified via research on their genomes,phylogeny,and molecular *** research showed that the genera and species that appeared and diverged early in their evolution(i.e.,before the Miocene)can be explained by the land connection between Hainan Island,Vietnam,and Guangxi during the *** to Southeast Asian tectonic theory,in the Middle Miocene(at about 15 million years ago),Hainan Island had moved to its present *** population and genetic divergence of species with late divergence times(after 15 Ma)can be reasonably explained by the close proximity(or land connection)between Hainan Island and the Leizhou Peninsula,enabling genetic communication between Hainan Island and the Chinese mainland,but have exceptional *** have been obtained through palaeobotanical studies,showing that in the Eocene-Oligocene period,southwest China and Hainan Island had subtropical vegetation and ***,the fossil group in southeast China(in Maoming,near present-day Hainan Island)in the Late Eocene indicated a tropical rainforest vegetation and *** suggests that in the Paleogene,Hainan Island may have been located near or on the southwest border of Guangxi and northern Vietnam,rather than in its present *** floristic division of the flora of Hainan Island basically presents a northeast-southwest inclined distribution *** pattern can be explained by the counterclockwise rotation of Hainan Island during its movement to the southeast as prop

关键词： Molecular phylogeny Biogeography Paleobotany Origin of flora and fauna Hainan Island of China

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Spatiotemporal evolution of ecological environment quality and its drivers in the Helan Mountain,China

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Journal of Arid Land 2025年第2期17卷 224-244页

作者： HE Yuanrong CHEN Yuhang ZHONG Liang LAI Yangfeng KANG Yuting LUO ming zhu Yunfei ZHANG ming Digital Fujian Institute of Big Data for Natural Disaster Monitoring Xiamen University of TechnologyXiamen 361000China Hunan Key Laboratory of Remote Sensing Monitoring of Ecological Environment in Dongting Lake Area Changsha 410004China zhundong Oil Production Plant Xinjiang Oilfield CompanyChangji 831511China

Understanding the ecological evolution is of great significance in addressing the impacts of climate change and human ***,the ecological evolution and its drivers remain inadequately explored in arid and semi-arid *** study took the Helan Mountain,a typical arid and semi-arid area in China,as the study *** adopting an Enhanced Remote Sensing Ecological Index(ERSEI)that integrates the habitat quality(HQ)index with the Remote Sensing Ecological Index(RSEI),we quantified the ecological environment quality of the Helan Mountain during 2010-2022 and analyzed the driving factors behind the *** Component Analysis(PCA)was used to validate the composite ERSEI,enabling the extraction of key features and the reduction of redundant *** results showed that the contributions of first principal component(PC1)for ERSEI and RSEI were 80.23%and 78.72%,respectively,indicating that the ERSEI can provide higher precision and more details than the RSEI in assessing ecological environment ***,the ERSEI in the Helan Mountain exhibited an initial decline followed by an increase from 2010 to 2022,with the average value of ERSEI ranging between 0.298 and ***,the ERSEI showed a trend of being higher in the southwest and lower in the northeast,with high-quality ecological environments mainly concentrated in the western foothills at higher *** centroid of ERSEI shifted northeastward toward Helan County from 2010 to *** and digital elevation model(DEM)emerged as the primary drivers of ERSEI *** study highlights the necessity of using comprehensive monitoring tools to guide policy-making and conservation strategies,ensuring the resilience of fragile ecosystems in the face of ongoing climatic and anthropogenic *** findings offer valuable insights for the sustainable management and conservation in arid and semi-arid ecosystems.

关键词： ecological environment quality Enhanced Remote Sensing Ecological Index(ERSEI) Principal Component Analysis(PCA) Moran's I centroid migration analysis geographic detector(Geodetector) Helan Mountain

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Reversible phase transition poly(benzyl methacrylate)/ionic liquid electrolytes for effective overheating protection in lithium batteries

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Journal of Energy Chemistry 2025年第2期101卷 76-86页

作者： Qian Yu Wei Sun Jialing zhu Haoxiang Li Shuai Wang Longqing Huang Qian Qiu Haoran tian He Miao Fu Wang Chunfei Zhang Jinliang Yuan Lan Xia Ningbo Innovation Team on New Energies and Marine Applications Faculty of Maritime and Transportation Ningbo University Technical University of Munich TUM School of Natural Sciences Department of Physics Chair for Functional Materials

Battery safety is influenced by various factors,with thermal runaway being one of the most significant *** most studies have concentrated on developing one-time,self-activating mechanism for thermal protection,such as temperature-responsive electrodes,and thermal-shutdown separators,these methods only provide irreversible ***,reversible temperature-sensitive electrolytes have emerged as promising alternatives,offering both thermo-reversibility and self-protective ***,further research is crucial to fully understand these thermal-shutdown *** this study,we propose lower critical solution temperature(LCST) phase behavior poly(benzyl methacrylate)/imidazolium-based ionic liquid mixtures to prepare temperature-sensitive electrolytes that provide reversible thermal shutdown protection of *** electrolyte features an appropriate protection temperature(～105℃) and responds quickly within a 1 min at 105℃,causing cells to hardly discharge as the voltage suddenly drops to 3.38 V,and providing efficient thermal shutdown protection within 30 *** cooling back to room temperature,the battery regains its original ***,the electrolyte exhibits excellent cycling stability with the capacity retention of the battery is 91.6% after 500 *** work provides a viable solution for preventing batteries from thermal runaway triggered by overheating.

关键词： Ionic liquid Lithium-ion battery Lower critical solution temperature Overheating Safety Thermal runaway

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Effects of bamboo invasion on forest structures and diameter-height allometries

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FOREST ECOSYSTEMS 2025年第1期12卷 38-45页

作者： Ouyang, ming Eziz, Anwar Xiao, Shuli Fang, Wenjing Cai, Qiong Ma, Suhui zhu, Jiangling Yang, Qingpei Hu, Jinming Tang, Zhiyao Fang, Jingyun Yunnan Univ Sch Ecol & Environm Sci Kunming Peoples R China Yunnan Univ Key Lab Transboundary Ecosecur Southwest Minist Educ Kunming Peoples R China Peking Univ Inst Ecol Coll Urban & Environm Sci Beijing Peoples R China Peking Univ Key Lab Earth Surface Proc Minist Educ Beijing Peoples R China Chinese Acad Sci Xinjiang Inst Ecol & Geog State Key Lab Desert & Oasis Ecol Key Lab Ecol Safety & Sustainable Dev Arid Lands Urumqi Peoples R China Jiangxi Agr Univ Jiangxi Prov Key Lab Bamboo Germplasm Resources & Nanchang Peoples R China Jiangxi Agr Univ Coll Forestry Nanchang Peoples R China

Forest structure is fundamental in determining ecosystem function, yet the impact of bamboo invasion on these structural characteristics remains unclear. We investigated 219 invasion transects at 41 sites across the distribution areas of Moso bamboo (Phyllostachys edulis) in China to explore the effects of bamboo invasion on forest structural attributes and diameter-height allometries by comparing paired plots of bamboo, mixed bamboo-tree, and non-bamboo forests along the transects. We found that bamboo invasion decreased the mean and maximum diameter at breast height, maximum height, and total basal area, but increased the mean height, stem density, and scaling exponent for stands. Bamboo also had a higher scaling exponent than tree, particularly in mixed forests, suggesting a greater allocation of biomass to height growth. As invasion intensity increased, bamboo allometry became more plastic and decreased significantly, whereas tree allometry was indirectly promoted by increasing stem density. Additionally, a humid climate may favour the scaling exponents for both bamboo and tree, with only minor contributions from topsoil moisture and nitrogen content. The inherent superiority of diameter-height allometry allows bamboo to outcompete tree and contributes to its invasive success. Our findings provide a theoretical basis for understanding the causes and consequences of bamboo invasion.

关键词： Moso bamboo Forest structure Stand density DBH-Height allometry Scaling exponent Wetness index

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Fisetin micelles precisely exhibit a radiosensitization effect by inhibiting PDGFRβ/STAT1/STAT3/Bcl-2 signaling pathway in tumor

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Chinese Chemical Letters 2025年第2期36卷 262-269页

作者： Yuanyuan Zeng Fang Liu Jun Wang Bianfei Shao Tao He Zhongzheng Xiang Yan Wang Shunyao zhu tian Yang Siting Yu Changyang Gong Lei Liu Department of Radiation Oncology Cancer CenterState Key Laboratory of BiotherapyWest China HospitalSichuan University Department of Radiation Oncology The Affiliated Cancer Hospital of Zhengzhou UniversityHenan Cancer Hospital Chongqing Key Laboratory of translational Research for Cancer Metastasis and individualized Treatment Chongqing University Cancer Hospital Department of Biotherapy Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan University Department of Pharmacy The First Affiliated Hospital of Wannan Medical CollegeYijishan Hospital of Wannan Medical College Institute of Surgery Research Daping HospitalThird Military Medical University

It is of great significance to find safe and effective radiosensitizers. A primary investigation has been made on fisetin's modification of radiation effect, but its radiosensitization and related mechanisms still need to be deeply clarified. Furthermore, fisetin with high hydrophobicity is difficult to dissolve in water,severely limiting its research and application. In this study, we fabricated a safe and soluble radiosensitizer fisetin micelle for precisely enhancing radiotherapy by inhibiting platelet-derived growth factor receptor-β(PDGFRβ)/signal transducer and activator of transcription 1(STAT1)/signal transducer and activator of transcription 3(STAT3)/B cell lymphoma 2(Bcl-2) signaling pathway in the tumor. Systematic and detailed studies were performed to verify its radiosensitization effect in vitro and in vivo. On the cellular level, fisetin micelles selectively increased the radiosensitivity of tumor cells(CT26 and 4T1 cells)and had little effect on the sensitivity of normal mouse cells(L929 cells) to radiation. In the mouse models of colon and breast cancers, fisetin micelles showed an efficient radiosensitization capacity without apparent toxicity. Additionally, we first found that fisetin micelles played a radiotherapy sensitization role by inhibiting the PDGFRβ/STAT1/STAT3/Bcl-2 pathway activity. In general, this work not only confirmed that fisetin micelles precisely exhibit a radiosensitization effect in vitro and in vivo, but also profoundly explored its mechanisms underlying, to provide a theoretical and experimental basis for the clinical application of fisetin micelles.

关键词： Fisetin Platelet-derived growth factor receptor-β Polymetric micelles Radiosensitizer Radiotherapy

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Stabilities of delay stochastic McKean-Vlasov equations in the G-framework

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Science China(Information Sciences) 2025年第1期68卷 255-277页

作者： Haiyan YUAN Quanxin zhu Department of Mathematics Heilongjiang Institute of Technology Key Laboratory of Computing and Stochastic Mathematics (Ministry of Education) School of Mathematics and Statistics Hunan Normal University

This article focuses on a type of stochastic Mc Kean-Vlasov equation in the G-framework(G-SMVE) and addresses the stability issue for delay stochastic Mc Kean-Vlasov equations in the G-framework(G-SMVDEs). Distribution dependence and uncertainty prevent us from directly applying the stochastic analysis method for stochastic Mc Kean-Vlasov equations(SMVEs)to G-SMVEs directly. To overcome this difficulty, we introduce definitions, including the derivative of a function with a law under the G-expectation and the Lions derivatives. Then we construct a new G-It? formula for G-SMVEs according to the G-It? formula for stochastic differential equations in the G-framework(G-SDEs) and the It? formula for SMVEs. Using the new G-It? formula and the Lyapunov functional method, we investigate the moment exponential stability and almost sure asymptotic stability of G-SMVDEs. To overcome the difficulty in obtaining the distribution dependence of the exact solution to the G-SMVDE, we introduce the empirical measure and the corresponding interacting particle system, and then prove the stability equivalence between the underlying G-SMVDE and the corresponding interacting particle system. Two examples are used to confirm our theoretical results.

关键词： delay stochastic McKean-Vlasov equations Wasserstein distance G-Brownian motion Lions derivative stability

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Research on the Configuration Quantity Issues of Decoy Based on Cost-Effectiveness Ratio

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Open Journal of Modelling and Simulation 2025年第1期13卷 106-114页

作者： Jun tian Xu zhu Naiyan Zhang Hao Xu Training Base Army Engineering University of PLA Xuzhou China

With the continuous application of new technologies in reconnaissance and attack, false camouflage plays a more important role in improving the survivability of targets, and the number of decoys plays a crucial role in the camouflaging effect. Based on the concept of cost-effectiveness ratio, according to the newly formulated Johnson criterion and the view of discovery and destruction, this paper proposes to take the identification probability as the probability of being destroyed and uses mathematical formulas to calculate the cost of a single use decoy. On this basis, a cost-effectiveness ratio model is established, with the product of the increase in the survival probability of the target and the cost of the target as the benefit, and the sum of the product of the probability of being destroyed and the cost of the decoy and the cost of a single use as the consumption cost. The model is calculated and analyzed, and the number of decoys that conform to the actual situation is obtained.

关键词： Decoy Configuration Quantity Cost-Effectiveness Ratio

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Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： Jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi tian Tang Yunfan Zhang Zhiyuan Ma Jingwen Sun Liang Xue Wenyao Zhang Pan Xiong Xin Wang Junwu zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and TechnologyNanjing 210094JiangsuChina Jiangsu Pylon Battery Co.Ltd Yangzhou 211400JiangsuChina

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene (PP) *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance(145.88 MPa) of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm^(-2)with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Lithium-sulfur batteries Staged dendrite suppression Shuttle effect Surface-negatively-charged nanodiamond

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Chemical weathering in Manas River Basin:Driven by sulfuric acid or carbonic acid?

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Acta Geochimica 2025年第1期44卷 59-85页

作者： Jiaxin Zhang Bingqi zhu Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina

Carbonic acid produced by the dissolution of atmospheric and soil CO_(2)in water is usually the most dominant catalyst for chemical weathering,but a sulfuric aciddriven phenomenon,different from usual,was found in the orogenic belt watersheds dominated by silicate *** study,rooted in comprehensive field investigations in the Manas River Basin(MRB)north of the tianshan Mountains,delves into the mechanisms and impacts of sulfuric and carbonic acid as catalysts driving diff erent types of chemical weathering in the Central Asian Orogenic *** analyses elucidate that carbonate weathering constitutes 52.4%of the total chemical weathering,while silicate and evaporite account for 18.6%and 25.3%,respectively,with anthropogenic activities and atmospheric precipitation having little eff *** estimated total chemical weathering rate in MRB is approximately 0.075×10^(6)mol/km^(2)/*** findings further suggest that,preceding carbonate precipitation(<10^(4)year),chemical weathering can absorb CO_(2).Subsequently,and following carbonate precipitation(10^(4)-10^(7)year),it will release CO_(2).The release significantly surpasses the global average CO_(2)consumption,contributing to a noteworthy climate *** study underscores the distinctive weathering mechanisms,wherein sulfuric acid emerges as the predominant *** quantity of sulfuric acid as a catalyst is approximately three times that of carbonic *** acid-driven carbonate rock weathering(SCW)is identified as the sole chemical weathering type with a net CO_(2)release eff *** CO_(2)release flux(5176 mol/km^(2)/year)is roughly 2.5 times the CO_(2)absorption by Ca-Mg silicate weathering,highlighting the pivotal role of chemical weathering in sourcing atmospheric CO_(2)over the timescales of carbonate precipitation and sulfate ***,this study posits that catalyst and transport limitations are the most plausible critical factors in *** interplay between s

关键词： Catchment chemical weathering Mid-latitude orogenic belt Sulﬁde oxidation Manas River Basin

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改良PICC置管技术在169例肺癌患者化疗中的应用

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中华临床营养杂志 2009年第1期17卷 56-57页

作者：郭梅田明珠汪丹王鑫龚海芬解放军总医院肿瘤科北京100853

目的研究改良经外周静脉置入中心静脉导管（PICC）置管技术对导管异位的影响。方法将169例肺癌置管患者随机分为试验组（88例）与对照组（81例），试验组在行HCC置管术送管至25cm时，助手用手紧贴患者锁骨上窝按压穿刺侧颈内静脉和颈外... 详细信息

目的研究改良经外周静脉置入中心静脉导管（PICC）置管技术对导管异位的影响。方法将169例肺癌置管患者随机分为试验组（88例）与对照组（81例），试验组在行HCC置管术送管至25cm时，助手用手紧贴患者锁骨上窝按压穿刺侧颈内静脉和颈外静脉下端；对照组采取常规歪头的方法。统计两组导管异位的发生率。结果试验组仅有1例导管被送人颈外静脉，导管颈部异位发生率为1．1％（1／88）；对照组导管异位发生率为11．1％（9／81），两组比较差异无统计学意义（X^2=7．3636，P〈0．01）。结论肺癌患者PICC置管过程中，术者采取相应的干预手法可明显减少导管异行进入颈静脉的并发症。

关键词：肺癌经外周静脉置人中心静脉导管导管异位

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