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Paleomapping:Creating testable visual hypotheses of ancient worlds

Journal of Palaeogeography 2025年第01期14卷 91-104页

作者： Holger Petermann Annaka M.Clement Patrick M.Sullivan Hannah M.Bonner James W.Hagadorn Department of Earth and Space sciences Denver Museum of Nature & Science Colorado School of Mines Department of Geology and Geologic Engineering Division of Water Quality Utah Department of Environmental Quality

The story of the Earth's changing landscapes is often told through paleogeographic maps. These images are some of the most accessible and widely used illustrations in the Earth sciences. However, no formal procedure for the creation of photorealistic paleomaps(i.e., paleosatellite images) exists. Using an example from the Late Jurassic of the Rocky Mountain region, we present a method for making paleoenvironmental and paleosatellite maps that is scalable, reproducible, testable, and incorporates peer review. The process includes a literature review followed by data-visualization, paleoenvironmental interpretation, peer-review,iterative revisions, and the creation of a false contour map and color gradient used to render a paleosatellite image. Paleosatellite images are photorealistic versions of paleoenvironmental maps that incorporate global climatic and tectonic information as well as principles of actualism; they can be made through comparison to analogous modern landscapes. An important component of this process is that the data maps that ground this paleomapping process allow evaluation of where paleoenvironmental interpretations are wellsupported by outcrop and subsurface data, and where such visualization is highly interpretive-often because of lack of available rocks or studies in a given area. As such, our paleoenvironmental maps and paleosatellite images are testable pictorial hypotheses. By outlining a procedure that produces referenced,data-rich, and visually realistic maps, we hope to demystify the paleoenvironmental map-making process and improve accessibility of paleomaps for the broader geoscience community. Where resources and complementary data are available, such maps also have potential for georeferencing and integration with larger continent-scale paleogeographic maps.

关键词： Ancient landscapes Cartography Paleogeography Paleoenvironments Jurassic

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Dative B–N bonds weaven toward two-dimensional purely organic materials for single crystals

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science China Chemistry 2025年第1期68卷 12-14页

作者： Wei-Lei Zhou Siwei Wang Yong Chen College of Chemistry and Materials science Inner Mongolia Key Laboratory of Chemistry for Nature Products and Synthesis for Functional MoleculesInnovation Team of Optical Functional Molecular DevicesInner Mongolia Minzu UniversityTongliao 028000China College of Chemistry Nankai UniversityTianjin 300071China

Molecular topology is one of the important topics to study and understand the relationship between molecular structure and properties^([1]).Particularly,two-dimensional(2D)materials with extremely high surface area and ultra-thin morphology have attracted considerable attention due to their unexpected properties in materials and chemistry^([2,3]).

关键词： bonds purely dimensional

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Assembly-free reads accurate identification(AFRAID)approach outperforms other methods of DNA barcoding in the walnut family(Juglandaceae)

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Plant Diversity 2025年第1期47卷 115-126页

作者： Yanlei Liu Kai Chen Lihu Wang Xinqiang Yu Chao Xu Zhili Suo Shiliang Zhou Shuo Shi Wenpan Dong School of Landscape and Ecological Engineering Hebei University of EngineeringHandan 056038China State Key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing 100093China College of Life science Hebei Normal UniversityShijiazhuang 050024China School of Ecology and nature Conservation Beijing Forestry UniversityBeijing 100083China

DNA barcoding has been extensively used for species ***,species identification of mixed samples or degraded DNA is limited by current DNA barcoding *** this study,we use plant species in Juglandaceae to evaluate an assembly-free reads accurate identification(AFRAID)method of species identification,a novel approach for precise species identification in ***,we determined(1)the accuracy of DNA barcoding approaches in delimiting species in Juglandaceae,(2)the minimum size of chloroplast dataset for species discrimination,and(3)minimum amount of next generation sequencing(NGS)data required for species *** found that species identification rates were highest when whole chloroplast genomes were used,followed by taxon-specific DNA barcodes,and then universal DNA *** identification of 100%was achieved when chloroplast genome sequence coverage reached 20%and the original sequencing data reached 500,000 *** accurately identified species for all samples tested after 500,000 clean reads,with far less computing time than common *** results provide a new approach to accurately identify species,overcoming limitations of traditional DNA *** method,which uses next generation sequencing to generate partial chloroplast genomes,reveals that DNA barcode regions are not necessarily fixed,accelerating the process of species identification.

关键词： DNA barcode Species identification Random DNA barcode Juglandaceae Assembly-free

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Estimation of gaseous polycyclic aromatic hydrocarbons(PAHs)and characteristics of atmospheric PAHs at a traffic site in Kanazawa,Japan

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Journal of Environmental sciences 2025年第3期149卷 57-67页

作者： Xuan Zhang Hao Zhang YanWang Pengchu Bai Lulu Zhang Akira Toriba Seiya Nagao Nobuo Suzuki Masato Honda Zhijun Wu Chong Han Min Hu Ning Tang Graduate School of Medical sciences Kanazawa UniversityKanazawa 920-1192Japan School of Civil Engineering Architecture and EnvironmentHubei University of TechnologyWuhan 430068China Institute of nature and Environmental Technology Kanazawa UniversityKanazawa 920-1192Japan Graduate School of Biomedical sciences Nagasaki UniversityNagasaki 852-8521Japan College of Environmental sciences and Engineering Peking UniversityBeijing 100871China School of Metallurgy Northeastern UniversityShenyang 110819China Institute of Medical Pharmaceutical and Health ScienceKanazawa UniversityKanazawa 920-1192Japan

Size-fractionated particulate matter(PM_(2.5)and PM>_(2.5))was collected at a traffic site in Kanazawa,Japan in a seasonal sampling work in *** polycyclic aromatic hydrocarbons(4-to 6-ring PAHs)were determined in fine and coarse *** gas/particle partitioning coefficients(K_(p))of the PAHs were calculated from the supercooled liquid vapour pressure and octanol-air partitioning coefficient based on the relationships obtained in previous traffic pollution-related *** PAHs were estimated by K_(p) and the concentrations of PM and particulate *** concentrations of total PAHs were 32.5,320.1 and 5646.2 pg/m^(3) in the PM>_(2.5),PM_(2.5) and gas phases,*** seasonal trends in PAHs were observed(particle phase:lowest in summer,gas phase:lowest in spring,particle and gas phase:lowest in spring).Compared to 2019,the total PAH concentrations(in particles)decreased in 2020,especially in spring and summer,which might be due to reduced traffic trips during the COVID-19 *** incremental lifetime cancer risk(ILCR)calculated from the toxic equivalent concentrations relative to benzo[a]pyrene(BaP_(eq))was lower than the acceptable limit issued by the US Environmental Protection Agency,indicating a low cancer risk in long-term exposure to current PAH *** is notable that gaseous PAHs considerably contributed to BaP_(eq) and ILCR(over 50%),which highlighted the significance of gaseous PAH monitoring for public health *** low-cost estimation method for gaseous PAHs can be expected to reliably and conveniently obtain PAH concentrations as a surrogate for traditional sampling in the future work.

关键词： Polycyclic aromatic hydrocarbons Gas-particle partitioning Traffic Exposure-response relationship COVID-19

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Brain region-specific roles of brain-derived neurotrophic factor in social stress-induced depressive-like behavior

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Neural Regeneration Research 2025年第1期20卷 159-173页

作者： Man Han Deyang Zeng Wei Tan Xingxing Chen Shuyuan Bai Qiong Wu Yushan Chen Zhen Wei Yufei Mei Yan Zeng Brain science and Advanced Technology Institute Wuhan University of Science and TechnologyWuhanHubei ProvinceChina Geriatric Hospital Affiliated to Wuhan University of science and Technology WuhanHubei ProvinceChina School of Public Health Wuhan University of Science and TechnologyWuhanHubei ProvinceChina

Brain-derived neurotrophic factor is a key factor in stress adaptation and avoidance of a social stress behavioral *** studies have shown that brain-derived neurotrophic factor expression in stressed mice is brain region–specific,particularly involving the corticolimbic system,including the ventral tegmental area,nucleus accumbens,prefrontal cortex,amygdala,and *** how brain-derived neurotrophic factor participates in stress processing in different brain regions will deepen our understanding of social stress *** this review,we discuss the expression and regulation of brain-derived neurotrophic factor in stress-sensitive brain regions closely related to the pathophysiology of *** focused on associated molecular pathways and neural circuits,with special attention to the brain-derived neurotrophic factor–tropomyosin receptor kinase B signaling pathway and the ventral tegmental area–nucleus accumbens dopamine *** determined that stress-induced alterations in brain-derived neurotrophic factor levels are likely related to the nature,severity,and duration of stress,especially in the above-mentioned brain regions of the corticolimbic ***,BDNF might be a biological indicator regulating stress-related processes in various brain regions.

关键词： amygdala chronic mild stress chronic social defeat stress corticolimbic system depression hippocampus medial prefrontal cortex nucleus accumbens social stress models ventral tegmental area

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RE-SEGNN:recurrent semantic evidence-aware graph neural network for temporal knowledge graph forecasting

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science China(Information sciences) 2025年第2期68卷 103-119页

作者： Wenyu CAI Mengfan LI Xuanhua SHI Yuanxin FAN Quntao ZHU Hai JIN National Engineering Research Center for Big Data Technology and System Services Computing Technology and System LabCluster and Grid Computing LabSchool of Computer Science and TechnologyHuazhong University of Science and Technology

Temporal knowledge graph(TKG) reasoning, has seen widespread use for modeling real-world events, particularly in extrapolation settings. Nevertheless, most previous studies are embedded models, which require both entity and relation embedding to make predictions, ignoring the semantic correlations among different entities and relations within the same timestamp. This can lead to random and nonsensical predictions when unseen entities or relations occur. Furthermore, many existing models exhibit limitations in handling highly correlated historical facts with extensive temporal depth. They often either overlook such facts or overly accentuate the relationships between recurring past occurrences and their current counterparts. Due to the dynamic nature of TKG, effectively capturing the evolving semantics between different timestamps can be *** address these shortcomings, we propose the recurrent semantic evidenceaware graph neural network(RE-SEGNN), a novel graph neural network that can learn the semantics of entities and relations simultaneously. For the former challenge, our model can predict a possible answer to missing quadruples based on semantics when facing unseen entities or relations. For the latter problem, based on an obvious established force, both the recency and frequency of semantic history tend to confer a higher reference value for the current. We use the Hawkes process to compute the semantic trend, which allows the semantics of recent facts to gain more attention than those of distant facts. Experimental results show that RE-SEGNN outperforms all SOTA models in entity prediction on 6 widely used datasets, and 5 datasets in relation prediction. Furthermore, the case study shows how our model can deal with unseen entities and relations.

关键词： knowledge graph reasoning temporal knowledge graph Hawkes process semantic evidence

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Local Search-Based Anytime Algorithms for Continuous Distributed Constraint Optimization Problems

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IEEE/CAA Journal of Automatica Sinica 2025年第1期12卷 288-290页

作者： Xin Liao Khoi Hoang Xin Luo the College of Computer and Information science Southwest University the Department of Computer science and Engineering Washington University in St.Louis IEEE

Dear Editor,The distributed constraint optimization problems(DCOPs) [1]-[3]provide an efficient model for solving the cooperative problems of multi-agent systems, which has been successfully applied to model the real-world problems like the distributed scheduling [4], sensor network management [5], [6], multi-robot coordination [7], and smart grid [8]. However, DCOPs were not well suited to solve the problems with continuous variables and constraint cost in functional form, such as the target tracking sensor orientation [9], the air and ground cooperative surveillance [10], and the sensor network coverage [11].

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Satellite remote sensing reveals overwhelming recovery of forest from disturbances in Asia

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Atmospheric and Oceanic science Letters 2025年第1期18卷 46-51页

作者： Yiying Zhu Hesong Wang Anzhi Zhang School of Ecology and nature Conservation Beijing Forestry UniversityBeijingChina Key Laboratory of Regional Climate and Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Forestry and Landscape Architecture Xinjiang Agricultural UniversityUrumqiChina

Forest ecosystems play key roles in mitigating human-induced climate change through enhanced carbon uptake;however,frequently occurring climate extremes and human activities have considerably threatened the stability of *** the same time,detailed accounts of disturbances and forest responses are not yet well quantified in *** study employed the Breaks For Additive Seasonal and Trend method-an abrupt-change detection method-to analyze the Enhanced Vegetation Index time series in East Asia,South Asia,and Southeast *** approach allowed us to detect forest disturbance and quantify the resilience after *** showed that 20%of forests experienced disturbance with an increasing trend from 2000 to 2022,and Southeast Asian countries were more severely affected by ***,95%of forests had robust resilience and could recover from disturbance within a few *** resilience of forests suffering from greater magnitude of disturbance tended to be stronger than forests with lower disturbance *** summary,this study investigated the resilience of forests across the low and middle latitudes of Asia over the past two *** authors found that most forests exhibited good resilience after disturbance and about two-thirds had recovered to a better state in *** findings of this study underscore the complex relationship between disturbance and resilience,contributing to comprehension of forest resilience through satellite remote sensing.

关键词： Forest ecosystem Enhanced vegetation index Breaks for additive seasonal and trend method Disturbance Resilience

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A Systematic Thermodynamic Analysis of the Thermally Regenerative Electrochemical Cycle

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Journal of Thermal science 2025年第02期 389-399页

作者： FU Shen TANG Xin LIU Penghui LI Guiqiang Department of Thermal science and Energy Engineering University of Science and Technology of China

Thermally regenerative electrochemical cycle(TREC) is a novel and effective heat-to-electricity technology for harvesting low-grade ***,reported TREC analyses have been based on the Stirling cycle of ideal infinite heat source and infinite time for heat ***,this will lead to inaccuracy when the scenario deviates from the ideal *** this study,a systematic thermodynamic analysis on TREC is performed to address this *** on different heat transfer situations,the description of thermodynamic processes and the corresponding mathematical models are *** the same time,the TREC system,with the solar collector as the high-temperature heat source and the environment as the low-temperature heat source,is employed as a *** the study delved into discrepancies arising from incongruences between the practical operational process and the traditional ideal analytical methodologies,along with an investigation of the different thermal environment impact on system *** findings suggest that the finite analysis method should be used when the actual operating time of the system is shorter than the desired equilibrium *** the contrary,the use of the infinite analysis method,in this case,produces an error,the magnitude of which is directly related to the operating time,whereas when the time reaches 80% of the equilibrium time the error can be controlled to less than 2%.The influence of the heat source on the operating phase of the system is mainly in the temperature equilibrium and the rate of temperature *** effect is proportional to the thermal capacitance and is also positively related to the system ***,to improve system performance,it is recommended that a high-temperature heat source with a high ratio of thermal capacitance to system thermal capacitance should be selected and that the response time should slightly exceed the system equilibrium duration.

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The profound review of Fenton process:What’s the next step?

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Journal of Environmental sciences 2025年第1期147卷 114-130页

作者： Yimin Lin Junlian Qiao Yuankui Sun Hongyu Dong State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Department of Environmental science School of Ecological and Environmental SciencesEast China Normal UniversityShanghai 200241China

Fenton and Fenton-like processes,which could produce highly reactive species to degrade organic contaminants,have been widely used in the field of wastewater ***,the chemistry of Fenton process including the nature of active oxidants,the complicated reactions involved,and the behind reason for its strongly pH-dependent performance,is the basis for the application of Fenton and Fenton-like processes in wastewater ***,the conflicting views still exist about the mechanism of the Fenton *** instance,reaching a unanimous consensus on the nature of active oxidants(hydroxyl radical or tetravalent iron)in this process remains *** review comprehensively examined the mechanism of the Fenton process including the debate on the nature of active oxidants,reactions involved in the Fenton process,and the behind reason for the pH-dependent degradation of contaminants in the Fenton ***,we summarized several strategies that promote the Fe(Ⅱ)/Fe(Ⅲ)cycle,reduce the competitive consumption of active oxidants by side reactions,and replace the Fenton reagent,thus improving the performance of the Fenton ***,advances for the future were proposed including the demand for the high-accuracy identification of active oxidants and taking advantages of the characteristic of target contaminants during the degradation of contaminants by the Fenton process.

关键词： Advanced oxidation process Fenton Hydroxyl radical Fe(IV) Wastewater treatment

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