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Pleistocene glaciation advances the cryptic speciation of Stellera chamaejasme *** a major biodiversity hotspot

Journal of Integrative Plant Biology 2024年第6期66卷 1192-1205页

作者： Santosh Kumar Rana Hum Kala Rana Jacob BLandis Tianhui Kuang Juntong Chen Hengchang Wang Tao Deng Charles C.Davis Hang Sun CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Arkansas Biosciences Institute Arkansas State UniversityJonesboroArkansas 72401USA School of Integrative Plant Science Section of Plant Biology and the L.H.Bailey HortoriumCornell UniversityIthacaNew York 14853USA BTI Computational Biology Center Boyce Thompson InstituteIthacaNew York 14853USA CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Chinese Academy of SciencesWuhan Botanical GardenWuhan 430074China Department of Organismic and Evolutionary Biology HerbariaHarvard UniversityCambridgeMassachusetts 02138USA

The mountains of Southwest China comprise a significant large mountain range and biodiversity hotspot imperiled by global climate *** high species diversity in this mountain system has long been attributed to a complex set of factors,and recent large-scale macroevolutionary investigations have placed a broad timeline on plant diversification that stretches from 10 million years ago(Mya)to the *** our increasing understanding of the temporal mode of speciation,finer-scale populationlevel investigations are lacking to better refine these temporal trends and illuminate the abiotic and biotic influences of cryptic *** is largely due to the dearth of organismal sampling among closely related species and populations,spanning the incredible size and topological heterogeneity of this *** study dives into these evolutionary dynamics of speciation using genomic and ecomorphological data of Stellera chamaejasme *** identified four previously unrecognized cryptic species having indistinct morphological traits and large metapopulation of evolving lineages,suggesting a more recent diversification(~2.67-0.90 Mya),largely influenced by Pleistocene glaciation and biotic *** factors likely influenced allopatric speciation and advocated cyclical warming–cooling episodes along elevational gradients during the *** study refines the evolutionary timeline to be much younger than previously implicated and raises the concern that projected future warming may influence the alpine species diversity,necessitating increased conservation efforts.

关键词： cryptic speciation glacial-interglacial Hengduan Mountains north-south migration Stellera chamaejasme

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Extraction method of typical IEQ spatial distributions based on low-rank sparse representation and multi-step clustering

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Building Simulation 2024年第6期17卷 983-1006页

作者： Yuren Yang Yang Geng Hao Tang Mufeng Yuan Juan Yu Borong Lin School of Architecture Tsinghua UniversityBeijingChina Key Laboratory of Eco Planning&Green Building Ministry of EducationTsinghua UniversityBeijingChina

Indoor environment quality(IEQ)is one of the most concerned building performances during the operation *** non-uniform spatial distribution of various IEQ parameters in large-scale public buildings has been demonstrated to be an essential factor affecting occupant comfort and building energy ***,IEQ sensors have been widely employed in buildings to monitor thermal,visual,acoustic and air ***,there is a lack of effective methods for exploring the typical spatial distribution of indoor environmental quality parameters,which is crucial for assessing and controlling non-uniform indoor *** this study,a novel clustering method for extracting IEQ spatial distribution patterns is ***,representation vectors reflecting IEQ distributions in the concerned space are generated based on the low-rank sparse ***,a multi-step clustering method,which addressed the problems of the“curse of dimensionality”,is designed to obtain typical IEQ distribution patterns of the entire indoor *** proposed method was applied to the analysis of indoor thermal environment in Beijing Daxing international airport *** a result,four typical temperature spatial distribution patterns of the terminal were extracted from a four-month monitoring,which had been validated for their good *** typical patterns revealed typical environmental issues in the terminal,such as long-term localized overheating and temperature increases due to a sudden influx of *** extracted typical IEQ spatial distribution patterns could assist building operators in effectively assessing the uneven distribution of IEQ space under current environmental conditions,facilitating targeted environmental improvements,optimization of thermal comfort levels,and application of energy-saving measures.

关键词： indoor environment quality(IEQ) thermal environment spatial distribution temperature field low-rank sparse representation(LRSR) clustering

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Toward Establishing a Low-cost UAV Coordinated Carbon Observation Network(LUCCN):First Integrated Campaign in China

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Advances in Atmospheric Sciences 2024年第1期41卷 1-7页

作者： Dongxu YANG Tonghui ZHAO Lu YAO Dong GUO Meng FAN Xiaoyu REN Mingge LI Kai WU Jing WANG Zhaonan CAI Sisi WANG Jiaxu GUO Liangfu CHEN Yi LIU Carbon Neutrality research Center(CNRC) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Middle Atmospheric Physics and Global Environment Observation(LAGEO) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100101China National Remote Sensing Center of China Beijing 100036China The Administrative Center for China’s Agenda 21 Beijing 100862China

In this study,we introduce our newly developed measurement-fed-perception self-adaption Low-cost UAV Coordinated Carbon Observation Network(LUCCN)*** LUCCN primarily consists of two categories of instruments,including ground-based and UAV-based in-situ *** use the GMP343,a low-cost non-dispersive infrared sensor,in both ground-based and UAV-based *** first integrated measurement campaign took place in Shenzhen,China,4 May *** the campaign,we found that LUCCN’s UAV component presented significant data-collecting advantages over its ground-based counterpart owing to the relatively high altitudes of the point emission sources,which was especially obvious at a gas power plant in *** emission flux was calculated by a crosssectional flux(CSF)method,the results of which differed from the Open-Data Inventory for Anthropogenic Carbon dioxide(ODIAC).The CSF result was slightly larger than others because of the low sampling rate of the whole emission cross *** LUCCN system will be applied in future carbon monitoring campaigns to increase the spatiotemporal coverage of carbon emission information,especially in scenarios involving the detection of smaller-scale,rapidly varying sources and sinks.

关键词： CO_(2) measurement networks power station carbon emission cross-sectional flux method

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Proterozoic to Phanerozoic case studies of laser ablation microanalysis for microbial carbonate U–Pb geochronology

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Geoscience Frontiers 2024年第2期15卷 30-40页

作者： Yuxiang Jiang Simon V.Hohl Xiangtong Huang Shouye Yang State Key Laboratory of Marine Geology School of Ocean and Earth SciencesTongji UniversityShanghai 200092China

Some of the earliest bio-sedimentary records of life on Earth are represented by microbial carbonates,which are also critical geochemical archives of ancient seawater chemistry and the environmental circumstances in which they *** paleo-microbial environments on Earth and potentially other planets requires precise determination of the depositional ages of these ***(abiogenic)carbonate geochemistry communities can now use developments in in-situ laser ablation U-Pb dating using inductively coupled plasma mass spectrometry(LA-ICP-MS).Due to the effects of impurity mixing and diagenesis,microbial carbonates have received little geochronological study despite their broad relevance for understanding ancient seawater’s environmental conditions and geochemical *** study demonstrates using time-of-flight mass spectrometry(TOF-MS)to perform quick,quantitative elemental mapping before U-Pb spot dating to improve experiment success rates and data reliability and offers four practical application examples.

关键词： Stromatolite Microbial carbonate Carbonate geochronology In-situ LA-ICP-MS ICP-Time Of Flight-MS Trace element mapping

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Emergent phenomena in chiral active matter

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National Science Open 2024年第4期3卷 54-82页

作者： Joscha Mecke James Obed Nketsiah Ruiyao Li Yongxiang Gao Institute for Advanced Study Shenzhen UniversityShenzhen 518060China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China

In recent years,there has been growing interest in the study of chiral active materials,which consist of building blocks that show active dynamics featuring chiral symmetry breaking,e.g.,particles that rotate in a common *** materials exhibit fascinating phenomena such as odd viscosity,odd diffusivity,active turbulence in fluids,vivid dislocation dynamics or odd elasticity in crystals or elastic materials,and hyperuniform *** systematic study of soft chiral active matter systems is relatively new,starting around 2017,but has already shown promising applications in robust cargo transport,segregation and mixing dynamics,or manipulation of *** this review,we summarize recent experimental and theoretical advances in this field,highlighting the emergence of anti-symmetric and odd stresses and ensuring effects such as odd viscosity or topologically protected edge *** further discuss the underlying mechanisms and provide insights into the potential of chiral active matter for various applications.

关键词： active matter odd viscosity odd elasticity odd diffusivity hyperuniformity topologically protected edge modes

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Waste Cotton-Derived Fiber-Based Thermoelectric Aerogel for Wearable and Self-Powered Temperature-Compression Strain Dual-Parameter Sensing

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Engineering 2024年第8期39卷 235-243页

作者： Xinyang He Mingyuan Liu Jiaxin Cai Zhen Li Zhilin Teng Yunna Hao Yifan Cui Jianyong Yu Liming Wang Xiaohong Qin Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai 201620China Key Laboratory of Science and Technology of Eco-Textiles Ministry of EducationJiangnan UniversityWuxi 214122China Innovation Center for Textile Science and Technology Donghua UniversityShanghai 201620China

The rapid development of the global economy and population growth are accompanied by the production of numerous waste *** leads to a waste of limited resources and serious environmental pollution problems caused by improper *** rational recycling of wasted textiles and their transformation into high-value-added emerging products,such as smart wearable devices,is ***,we propose a novel roadmap for turning waste cotton fabrics into three-dimensional elastic fiber-based thermoelectric aerogels by a one-step lyophilization process with decoupled self-powered temperature-compression strain dual-parameter sensing *** thermoelectric aerogel exhibits a fast compression response time of 0.2 s,a relatively high Seebeck coefficient of 43μV·K^(-1),and an ultralow thermal conductivity of less than 0.04 W·m^(-1)·K^(-1).The cross-linking of trimethoxy(methyl)silane(MTMS)and cellulose endowed the aerogel with excellent elasticity,allowing it to be used as a compressive strain sensor for guessing games and facial expression *** addition,based on the thermoelectric effect,the aerogel can perform temperature detection and differentiation in self-powered mode with the output thermal voltage as the stimulus ***,the wearable system,prepared by connecting the aerogel-prepared array device with a wireless transmission module,allows for temperature alerts in a mobile phone application without signal interference due to the compressive strains generated during ***,our strategy is significant for reducing global environmental pollution and provides a revelatory path for transforming waste textiles into high-value-added smart wearable devices.

关键词： Waste textiles High value-added recycling Thermoelectrics Elasticity Decoupled sensing

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Synergistic effect of heterogeneous single atoms and clusters for improved catalytic performance

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中国科学技术大学学报 2024年第6期54卷 34-40,I0010页

作者： Long Liu Wenting Gao Yiling Ma Kainan Mei Wenlong Wu Hongliang Li Zhirong Zhang Jie Zeng Hefei National research Center for Physical Sciences at the Microscale Key Laboratory of Strongly Coupled Quantum Matter Physics of Chinese Academy of SciencesKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesDepartment of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026China School of Chemistry&Chemical Engineering Anhui University of TechnologyMa’anshan 243002China

Electrocatalytic water splitting provides an efficient method for the production of *** electrocatalytic water splitting,the oxygen evolution reaction(OER)involves a kinetically sluggish four-electron transfer process,which limits the efficiency of electrocatalytic water ***,it is urgent to develop highly active OER catalysts to accelerate reaction *** single atoms and clusters in one system is an innovative approach for developing efficient catalysts that can synergistically optimize the adsorption and configuration of intermediates and improve catalytic ***,research in this area is still ***,we constructed a heterogeneous single-atom cluster system by anchoring Ir single atoms and Co clusters on the surface of Ni(OH)_(2)*** single atoms and Co clusters synergistically improved the catalytic activity toward the ***,Co_(n)Ir_(1)/Ni(OH)_(2)required an overpotential of 255 mV at a current density of 10 mA·cm^(−2),which was 60 mV and 67 mV lower than those of Co_(n)/Ni(OH)_(2)and Ir1/Ni(OH)_(2),*** turnover frequency of Co_(n)Ir_(1)/Ni(OH)_(2)was 0.49 s^(−1),which was 4.9 times greater than that of Co_(n)/Ni(OH)_(2)at an overpotential of 300 mV.

关键词： single-atom cluster catalysts synergistic effect oxygen evolution reaction

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Enriched electrophilic oxygen species facilitate acidic oxygen evolution on Ru-Mo binary oxide catalysts

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Nano research 2024年第3期17卷 1165-1172页

作者： Yaya Wang Yunzhou Wen Yumeng Cheng Xinhong Chen Mengjiao Zhuansun Tongbao Wang Jun Li Debora Meira Huarui Sun Jun Wei Jia Zhou Yuhang Wang Sisi He Shenzhen Key Laboratory of Flexible Printed Electronics Technology Harbin Institute of Technology(Shenzhen)University TownShenzhen 518055China School of Science Harbin Institute of Technology(Shenzhen)University TownShenzhen 518055China Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory of Advanced Negative Carbon TechnologiesSoochow UniversitySuzhou 215123China Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong UniversityShanghai 200240China Science Division Canadian Light SourceSaskatoonSKS7N 2V3Canada Photon Science Division Argonne National LaboratoryLemontIL60439USA School of Materials Science and Engineering Harbin Institute of Technology(Shenzhen)University TownShenzhen 518055China

The polymer electrolyte membrane(PEM)electrolyzers are burdened with costly iridium(Ir)-based catalysts and high operation overpotentials for the oxygen evolution reaction(OER).The development of earth-abundant,highly active,and durable electrocatalysts to replace Ir is a critical step in reducing the cost of green hydrogen *** we develop a Ru5Mo4Ox binary oxide catalyst that exhibits high activity and stability in acidic *** electron-withdrawing property of Mo enriches the electrophilic surface oxygen species,which promotes acidic OER to proceed via the adsorbate evolution *** a result,we achieve a 189 mV overpotential at 10 mA·cm^(-2) and a Tafel slope of 48.8 mV·dec^(-1).Our catalyst demonstrates a substantial 18-fold increase in intrinsic activity,as evaluated by turnover frequency,compared to commercially available RuO_(2) and IrO_(2) ***,we report a stable OER operation at 10 mA·cm^(-2) for 100 h with a low degradation rate of 2.05 mV·h^(-1).

关键词： electrocatalysis oxygen evolution reaction(OER) ruthenium(Ru)-based oxide molybdenum electrophilic oxygen

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Biomolecular condensates and disease pathogenesis

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Science China Life Sciences 2024年第9期67卷 1792-1832页

作者： Ke Ruan Ge Bai Yanshan Fang Dan Li Tingting Li Xingguo Liu Boxun Lu Qing Lu Zhou Songyang Shuguo Sun Zheng Wang Xin Zhang Wen Zhou Hong Zhang Neurology Department at Huashan Hospital State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science Institutes of Brain Science School of Life Sciences Fudan University Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders Ministry of Education Bio-X Institutes Shanghai Jiao Tong University State Key Laboratory of Biocontrol MOE Key Laboratory of Gene Function and Regulation and Guangzhou Key Laboratory of Healthy Aging Research School of Life Sciences Sun Yat-sen Memorial HospitalSun Yat-sen University Department of Human Anatomy Histology and Embryology School of Basic Medicine Tongji Medical College Huazhong University of Science and Technology The Second Affiliated Hospital School of Basic Medical Sciences Institute of Biomedical Innovation Jiangxi Medical College Nanchang University Westlake Laboratory of Life Sciences and Biomedicine Department of Immunology and Microbiology School of Life Sciences Southern University of Science and Technology National Laboratory of Biomacromolecules Institute of Biophysics Chinese Academy of Sciences College of Life Sciences University of Chinese Academy of Sciences The First Affiliated Hospital & School of Life Sciences Ministry of Education Key Laboratory for Membrane-less Organelles & Cellular Dynamics Hefei National Research Center for Interdisciplinary Sciences at the Microscale Center for Advanced Interdisciplinary Science and Biomedicine of IHM Division of Life Sciences and Medicine University of Science and Technology of China Nanhu Brain-computer Interface Institute Department of Neurology of Second Affiliated Hospital and School of Brain Science and Brain Medicine Zhejiang University School of Medicine Interdisciplinary research Center on Biology and Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences University of Chinese Academy of Sciences Bio-X Institutes Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of

Biomolecular condensates or membraneless organelles(MLOs) formed by liquid-liquid phase separation(LLPS) divide intracellular spaces into discrete compartments for specific functions. Dysregulation of LLPS or aberrant phase transition that disturbs the formation or material states of MLOs is closely correlated with neurodegeneration, tumorigenesis, and many other pathological processes. Herein, we summarize the recent progress in development of methods to monitor phase separation and we discuss the biogenesis and function of MLOs formed through phase separation. We then present emerging proof-of-concept examples regarding the disruption of phase separation homeostasis in a diverse array of clinical conditions including neurodegenerative disorders, hearing loss, cancers, and immunological diseases. Finally, we describe the emerging discovery of chemical modulators of phase separation.

关键词： liquid-liquid phase separation biomolecular condensate membraneless organelle

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Discovery of Alkaloid Quinazolone-Derived Imidazolenones with Novel Structural Scaffolds of Multitargeting Antibacterial Potential

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Chinese Journal of Chemistry 2023年第24期41卷 3645-3661页

作者： Jie Dai Narsaiah Battini Zhong-Lin Zang Yan Luo Cheng-He Zhou Institute of Bioorganic & Medicinal Chemistry Key Laboratory of Applied Chemistry of Chongqing MunicipalitySchool of Chemistry and Chemical EngineeringSouthwest UniversityChongqing400715 China College of Pharmacy National & Local Joint Engineering Research Center of Targeted and Innovative TherapeuticsChongqing Key Laboratory of Kinase Modulators as Innovative MedicineChongqing University of Arts and SciencesChongqing402160 China

Alkaloids are one of the prominent members in the development of new antimicrobial *** work discovered a class of alkaloid quinazolone-derived imidazolenones as novel structural type of antibacterial agents with large potential to treat severe bacterial infections in the agricultural and food *** bioactive assay displayed that some of the prepared compounds exhibited good inhibition against the tested strains,and cyclohexylimidazole-derived 7-fluoroquinazolone 22a(MIC=0.002 mmol/L)exhibited a 12.5-fold stronger inhibition than norfloxacin against Escherichia coli ATCC *** studies revealed that compound 22a not only possessed the ability of rapid bactericidal property and low propensity to develop resistance but also showed low cytotoxic effects toward red blood *** preliminary mechanism exploration indicated that compound 22a could cause membrane damage by disrupting bacterial membrane as well as depolarizing the cell ***,compound 22a could insert into DNA,which might hinder the replication of *** docking suggested that compound 22a could bind to gyrase and topoisomerase,which might be due to the suppressed expression of related ***,compound 22a could disorder the metabolism and stimulate the production of reactive oxygen species to affect bacterial *** series of investigations suggested the promise of alkaloid quinazolone-derived imidazolenones as novel multitargeting antibacterial candidates for treatment of bacterial infections.

关键词： Quinazolone Imidazole Antibacterial Enone DNA

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