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Effects of photo-oxidation and transition metals on the formation of reactive oxygen species from aromatic compounds using spectroscopic method

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Journal of Environmental Sciences 2025年第5期151卷 1-11页

作者： Xiaoyu Hu Juanjuan Qin Yuanyuan Qin Tianyi Zhao Yuxuan cao Qinghe Cai Lijia Zhang Yang Zhang College of Resources and Environment University of Chinese Academy of SciencesBeijing 101408China Beijing Yanshan Earth Critical Zone National Research Station Beijing 101408China Resource and Environmental Branch China National Institute of StandardizationHaidian DistrictBeijing 100191China Binzhou Institute of Technology Binzhou 256606China

Particulate matter(PM)can cause adverse health effects by overproducing reactive oxygen species(ROS).Although the ability of PM to induce ROS generation depends on its composi-tion and environmental *** study explores how photo-oxidation affects ROS gen-eration from aromatic compounds(ACs,including catechol(CAT),phthalic acid(PA),and 4,4-oxydibenzoic acid(4,4-OBA))and their mixtures with transition metals(TMs,includ-ing Fe(II),Mn(II),and Cu(II))using Fourier-transform infrared(FTIR)and Ultraviolet-visible spectroscopy(UV-Vis).Results showed that photo-oxidation facilitated ROS generation from ***-Fe(II)/Cu(II)showed synergistic effects,but 4,4-OBA-Fe(II)/Cu(II)showed antag-onistic ***-Mn(II)and PA-Fe(II)/Cu(II)exhibited synergistic effects first and then showed antagonistic *** different interactions were due to complexation between ACs and *** photo-oxidized ACs-TMs significantly enhanced ROS generation com-pared with *** study suggested the photo-oxidation mechanism involved that the transfer ofπ-electrons from the ground to an excited state in benzene rings and func-tional groups,leading to the breakage and formation of chemical bonds or easierπ-electron transfer from ACs to *** former could generate ROS directly or produce polymers that promoted ROS generation,while the latter promoted ROS generation by transferringπ-electrons to dissolved oxygen *** study revealed that both interactions among components and photo-oxidation significantly influenced ROS *** studies should integrate broader atmospheric factors and PM components to fully assess oxidative potential and health impacts.

关键词： Reactive oxygen species Aromatic compounds Transitional metals Photo-oxidation

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Catalytic production of high-energy-density spiro polycyclic jet fuel with biomass derivatives

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Journal of Energy Chemistry 2025年第2期101卷 760-768页

作者： Wen-Jing Zhang Yan-Cheng Hu Yan-Hong Tan Jia Li Ning Li Jing-Pei cao School of Chemical Engineering and Technology China University of Mining and Technology CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

High-energy-density（HED） fuel（*** used JP-10 and RJ-4）,featuring compact 3D polycyclic structure with high strain,is of critical importance for volume-limited military aircraft,since their high density and combustion heat can provide more propulsion *** reduce the reliance on petroleum source,it is highly desirable to develop renewable alternatives for the production of strained polycyclic HED fuel,but which remains a big challenge because of the inaccessibility caused by the high strain,We herein demonstrate a three-step catalytic route towards highly strained C17and C18spirofuel with biomass *** process includes catalytic aldol condensation of renewable cyclohexanone/cyclopentanone with benzaldehyde,catalytic spiro Diels-Alder（D-A） reaction of aldol adduct with isoprene,and catalytic *** key spiro D-A reaction is enabled by the catalysis of heterogeneous Lewis acidic ionic *** chloroaluminate IL,formed by benign urea and AICl3,exhibits good catalytic performance and reusability for this *** eventual hydrodeoxygenation（HDO）over Pd/C and H-Y produces strained tricyclic spirofuel with density>0.93 g/mL,combustion heat>41 MJ/L and freezing point <-40℃,which are better than the properties of tactical fuel ***,it is anticipated that the as-prepared renewable fuels have the potential to replace traditional petroleum-derived HED fuels.

关键词： Biomass derivatives Cycloaddition High-energy-density Lewis acidic ionic liquid Spiro polycyclic fuel

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Isobaric enzymatic assays reveal depth-dependent variation in microbial ectoenzyme activities in the deepest ocean on Earth

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Science China Earth Sciences 2025年第1期68卷 185-194页

作者： Junwei cao Jiahua WANG Hongge ZHANG Junhao DENG Binbin PAN Jiawang CHEN Li ZHANG Jiasong FANG College of Oceanography and Ecological Science Shanghai Ocean UniversityShanghai201306China Ocean College Zhejiang UniversityZhoushan316000China Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and TechnologyQingdao266237China

Microbial ectoenzymes play essential roles in the transformation and mineralization of organic matter in the ***,conventional methods for measuring microbial ectoenzyme activities(MEAs)in the deep ocean under atmospheric conditions can misrepresent the metabolic activities of indigenous microbial *** overcome this limitation,we measured the activities of three microbial ectoenzymes(aminopeptidase,α-glucosidase,andβ-glucosidase)under both atmospheric and in situ pressure conditions in seawater collected using pressure-retaining and non-pressure-retaining samplers in the Challenger Deep,Mariana *** the case of aminopeptidase andα-glucosidase,the highest isobaric MEAs were observed in the surface layer(50 m),followed by those at abyssopelagic depths(4,000–6,000 m)for aminopeptidase,hadal realm(10,903 m)forα-glucosidase,whileβ-glucosidase activity exhibited the highest value at 10,903 ***,the isobaric MEAs in hadal waters were commonly found to be higher than the decompressed counterparts,highlighting the importance of pressure-retaining sampling and isobaric enzymatic *** half-saturation constant(K_(m))showed a general decreasing trend with depth,suggesting that the deep ocean microbes might have adapted to the high-pressure and oligotrophic environment by increasing their ectoenzyme's affinity to ***,particle-free MEAs contribute more to the total MEAs in the deep ocean than particle-associated MEAs,suggesting the significance of cell-associated and dissolved ectoenzymes in ocean *** study provides a foundation for future investigations of MEAs in the ocean and has important implications for understanding the dynamics of microbially mediated biogeochemical cycling in marine ecosystems.

关键词： Pressure-retaining sampling Microbial ectoenzyme activity Deep-sea microbes High pressure Mariana Trench

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基于不变风险最小化的高比例分布式光伏配电网拓扑异常检测

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电力自动化设备 2025年第1期45卷 84-91页

作者：赵健曹子恺高源李梁上海电力大学电气工程学院上海200090

高比例分布式光伏接入配电网后,其出力波动导致终端用户功率数据偏移,不满足机器学习中数据独立同分布的要求,导致基于学习的拓扑异常检测方法收敛慢、精度低。为此,提出一种基于不变风险最小化(IRM)方法的高比例分布式光伏配电网拓扑... 详细信息

高比例分布式光伏接入配电网后,其出力波动导致终端用户功率数据偏移,不满足机器学习中数据独立同分布的要求,导致基于学习的拓扑异常检测方法收敛慢、精度低。为此,提出一种基于不变风险最小化(IRM)方法的高比例分布式光伏配电网拓扑异常检测方法。基于自适应在线深度学习构建配电网数据潮流(DF)模型,利用用户和配电变压器侧的历史量测数据反映量测点有限的配电网中各电气量间的潮流映射关系。基于IRM方法构建配电网DF模型,形成改进的IRM-DF模型,降低高比例分布式光伏接入产生的数据分布偏移对原有DF模型的影响,提升模型的准确性。利用IRM-DF模型代替配电网的节点网络方程,输出各节点关联性矩阵,并利用孤立森林算法筛选出矩阵中的异常点,确定异常拓扑位置。以仿真的低压配电网为例验证了所提方法的准确性和有效性。

关键词：分布式光伏配电网不变风险最小化自适应深度学习数据潮流模型

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Dietary supplementation with pterostilbene activates the PI3K‑AKT‑mTOR signalling pathway to alleviate progressive oxidative stress and promote placental nutrient transport

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Journal of Animal Science and Biotechnology 2025年第1期16卷 388-407页

作者： Mingming cao Liyun Bai Haoyun Wei Yantong Guo Guodong Sun Haoyang Sun Baoming Shi College of Animal Science and Technology Northeast Agricultural UniversityHarbin 150030PR China

Background Progressive oxidative stress easily occurs as a result of a gradual increase in the intensity of maternal metabolism due to rapid foetal development and increased intensity of ***,studies on the effects of processive oxidative stress on nutrient transport in the placenta have received little *** present study was conducted on sows at 85 days of gestation to study the effects of pterostilbene(PTE)on maternal oxidative stress status and placental nutrient *** PTE increased the antioxidant capacity and immunoglobulin content in mothers’blood and milk,reduced the level of inflammatory factors,and improved the nutrient content of *** also reduced sow backfat loss and the number of weak sons,and increased piglet weaning weight and total weaning litter *** subsequently found that PTE enhanced placental glucose and fatty acid transport and further affected glycolipid metabolism by increasing the expression of LAL,PYGM,and Gbe-1,which activated the PI3K phosphorylation ***,PTE addition altered the relative abundance of the Firmicutes,Proteobacteria,Parabacillus,and Bacteroidetes-like RF16 groups in sow *** increased the levels of acetate,propionate,butyrate and isovalerate in the *** These findings reveal that the addition of PTE during pregnancy and lactation mitigates the effects of processive oxidative stress on offspring development by altering maternal microbial and placental nutrient trans-port capacity.

关键词： Nutrient transporters Placenta Progressive oxidative stress Pterostilbene Sows

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Voltage Regulation in Edge Energy Router System via H_(∞)Control with Markov Jump

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CSEE Journal of Power and Energy Systems 2025年第1期11卷 196-207页

作者： Yutong Li Haochen Hua Junwei cao Department of Automation Tsinghua UniversityBeijing100092China College of Energy and Electrical Engineering Hohai UniversityNanjing 211100China Beijing National Research Center for Information Science and Technology Tsinghua UniversityBeijing100084China

With the increase in the amount of tasks offtoaded to the network edge, the energy supply of edge devices has become a challenge worthy of attention. It is a feasible way to use renewable energy to supply energy for edge devices, but production of renewable energy has certain uncertainty and stochasticity. In order to provide sufficient energy to ensure stable operation of edge devices, energy Internet (EI) provides an idea, that is, different edge devices are connected with distributed small energy supply and storage systems. As the core equipment of energy Internet, energy router (ER) plays an important role in information transmission, energy transmission and system control. In this paper, the concept of edge energy router is proposed, which has the ability of task computing and scheduling similar to edge computing server, as well as the ability of energy transmission and system control of energy router. Each edge energy router is connected with loads, photovoltaic panel (PV), micro turbine (MT) and battery energy storage (BES) to form a self-sufficient microgrid (MG) system. However, there exists a delay in energy transmission and task scheduling between different ERs. Moreover, the DC bus voltage stability of each edge energy router system is negatively affected by internal uncertainty, stochasticity and external interference. Therefore, the system is modeled by Markov jump ODEs with time delay, and robust control of DC bus voltage deviation is discussed in this paper. The linear matrix inequality (LMI) method is used to solve this Markov jump control problem. Finally, numerical simulations show the effectiveness of the proposed method.

关键词： Edge computing edge energy router Markovian jump system microgrid ordinary differential equation.

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Experimental Observing Damage Evolution in Cement Pastes Exposed to External Sulfate Attack by in situ X-ray Computed Tomography

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 164-170页

作者： WU Min cao Kailei XIAO Weirong YU Zetai cao Jierong DING Qingjun LI Jinhui China Railway Construction Corporation Harbour and Channel Engineering Bureau Group Co. LTDZhuhai 519000China Con-struction Headquarters of Zhoushan Liuheng Bridge Phase II Project Zhoushan 316000China China Railway Construction Bridge En-gineering Bureau Group Co. LTDTianjin 300000China State Key Laboratory of Silicate Material for Architecture(Wuhan University of Technology) Wuhan 430070China College of Materials Science and Engineering Wuhan Textile UniversityWuhan 430200China

The paper presents experimental investigation results of crack pattern change in cement pastes caused by external sulfate attack(ESA).To visualize the formation and development of cracks in cement pastes under ESA,an X-ray computed tomography(X-ray CT)was used,i e,the tomography system of Zeiss Xradia 510 *** results indicate that X-CT can monitor the development process and distribution characteristics of the internal cracks of cement pastes under ESA with attack *** addition,the C3A content in the cement significantly affects the damage mode of cement paste specimens during sulfate *** damage of ordinary Portland cement(OPC)pastes subjected to sulfate attack with high C3A content are severe,while the damage of sulfate resistant Portland cement(SRPC)pastes is much smaller than that of OPC ***,a quadratic function describes the correlation between the crack volume fraction and development depth for two cement pastes immermed in sulfate solution.

关键词： concrete external sulfate attack damage evolution situ X-ray computed tomography

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Rosaceae phylogenomic studies provide insights into the evolution of new genes

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Horticultural Plant Journal 2025年第1期11卷 389-405页

作者： Lan Jiang Xiaoxu Li Kun Lyu Han Wang Zhiyuan Li Wang Qi Lin Zhang Yunpeng cao Anhui Province Key Laboratory of Non-coding RNA Basic and Clinical Transformation(Wannan Medical College) Central LaboratoryYijishan Hospital of Wannan Medical CollegeWuhuAnhui 241000China Beijing Life Science Academy Beijing 102209China CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubei 430074China Center of Economic Botany Core Botanical GardensChinese Academy of SciencesWuhanHubei 430074China Key Laboratory for Tobacco Gene Resources Tobacco Research InstituteChinese Academy of Agricultural SciencesQingdaoShangdong 266000China school of Life Sciences Anhui Agricultural UniversityHefeiAnhui 230036China School of Basic Medical Sciences Hubei University of Chinese MedicineWuhanHubei 430065China

Rosa banksiae,known as Lady Banks'rose,is a perennial ornamental crop and a versatile herb in traditional Chinese *** the lack of genomic resources,we assembled a Hi Fi and Nanopore sequencing-derived 458.58 Mb gap-free telomere-to-telomere high-quality *** genome with a scaffold N50=63.90 *** genome of *** exhibited no lineage-specific whole-genome duplication compared with other *** phylogenomic analysis of 13 Rosaceae and Arabidopsis through a comparative genomics study showed that numerous gene families were lineage-specific both before and after the diversification of *** of these genes are candidates for new genes that have evolved from parental genes through fusion *** genes are divided into three types:Type-I and Type-II genes contain two parental genes that are generated by duplication,distributed in the same and different regions of the genome,respectively;and Type-III can only be detected in one parental ***,Type-I genes are found to have more relaxed selection pressure and lower Ks values than Type-II,indicating that these newly evolved Type-I genes may play important roles in driving phenotypic *** analysis exhibited that newly formed fusion genes can regulate the phenotype traits of plant growth and development,suggesting the functional significance of these *** study identifies new fusion genes that could be responsible for phenotype evolution and provides information on the evolutionary history of recently diverged species in the Rosa *** data represents the major progress in understanding the new fusion genes evolution pattern of Rosaceae and provides an invaluable resource for phylogenomic studies in plants.

关键词： Rosa banksiae Gap-free genome Rosaceae Phenotype Evolutionary patterns

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HAG1 Regulates Arsenic Allocation and Accumulation in Rice Grains

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Rice science 2025年第1期32卷 1-5,I0001-I0009页

作者： YANG Huan YU Jing XIE Manyi XU Ping cao Zhenzhen CHEN Mingxue cao Zhaoyun Rice Product Quality Inspection and Supervision Center Ministry of Agriculture and Rural AffairsChina National Rice Research InstituteHangzhou 310006China

Rice is a well-recognized accumulator of arsenic(As),which poses a threat to food security and human *** rice varieties vary widely in their As accumulation and tolerance,yet the underlying genetic basis remains *** this study,we isolated a rice mutant hag1,which displayed high accumulation of As in rice grains and increased sensitivity to As *** genetic investigation,we identified the ATP-binding cassette(ABC)transporter OsABCC1,involved in sequestering As in vacuoles,as the causal gene responsible for As allocation and tolerance in *** physiological analysis revealed that As stress caused more severe oxidative damage in hag1 compared with the wild type(WT).The hag1 mutant displayed different accumulation patterns depending on the levels of As *** discovered that under low As concentration,hag1 synthesized more thiol compounds and exhibited lower As translocation than the WT;however,at high As levels,hag1 produced fewer thiol compounds and increased As transfer *** analysis of the node nearest to the panicles revealed that OsABCC1 was down-regulated in hag1,resulting in increased As translocation and accumulation in rice ***,natural variations in the promoter of OsABCC1 may confer differential gene expression and distinct As accumulations in grains between japonica and indica rice varieties,providing insights for breeding low-As rice varieties.

关键词： breeding grains insight

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Catatonia induced by antipsychotics in an adolescent male patient with systemic lupus erythematosus:A case report

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World Journal of Psychiatry 2025年第2期15卷 257-263页

作者： Wen-Qi Geng Xiao-Xi Yang Jin-Ya cao Jing Wei Department of Psychological Medicine Chinese Academy of Medical Sciences and Peking Union Medical CollegePeking Union Medical College HospitalBeijing 100730China Department of Rheumatology and Clinical Immunology Peking Union Medical College HospitalChinese Academy of Medical SciencesPeking Union Medical CollegeBeijing 100730China National Clinical Research Center for Dermatologic and Immunologic Diseases(NCRC-DID) Ministry of Science&TechnologyBeijing 100730China State Key Laboratory of Complex Severe and Rare Diseases Peking Union Medical College HospitalBeijing 100730China Key Laboratory of Rheumatology and Clinical Immunology Ministry of EducationBeijing 100730China

BACKGROUND Systemic lupus erythematosus(SLE)can affect multiple organs or *** involvement of the central nervous system can result in the manifestation of epilepsy,an acute confusional state,and other rare neuropsychiatric presentations,such as *** SUMMARY We present a case of an adolescent male patient with first-onset SLE who presented with neuropsychiatric symptoms including epilepsy and *** initial utilization of olanzapine to alleviate symptoms of agitation precipitated the emergence of catatonia,which was mitigated by discontinuing olanzapine and supplementing with *** this case,whether the catatonia was secondary to the utilization of antipsychotics or to an organic disease is a question that warrants differential *** Multidisciplinary collaborative management is the cornerstone for the successful management of severe cases of SLE.

关键词： Catatonia Systemic lupus erythematosus Referral consultation Antipsychotics Benzodiazepines Case report

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