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Propane dehydro-aromatization reaction over PtFe@s-1 coupling with Zn/ZsM-5 tandem catalysts: the role of Zn species

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Frontiers of Chemical science and Engineering 2024年第8期18卷 25-35页

作者： Kai Bian sirui Liu Huahua Fan Guanghui Zhang Xinwei Zhang Gideon Abaidoo Ocran Mingrui Wang Quanjie Liu Xiaowa Nie shuandi Hou xinwen Guo sinopec Dalian Research Institute of Petroleum and Petrochemicals Dalian 116045China state Key Laboratory of Fine Chemicals Frontier Science Center for Smart MaterialsPSU-DUT Joint Center for Energy ResearchSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China

Unraveling the structure-activity relationship and improving the catalytic performance is paramount in propane dehydro-aromatization reactions. Herein, a tandem catalyst with high propane dehydro-aromatization reaction performance was prepared via coupling the PtFe@s-1 with Zn/ZsM-5 zeolites (PtFe@s-1&1.0Zn/ZsM-5), which exhibits high dehydrogenation activity, aromatics selectivity (~60% at ~78% propane conversion), and stability. The addition of zinc inhibits the cleavage of C_(6)^(=) intermediates on ZsM-5 and promotes the aromatization pathway by weakening zeolite acid strength, significantly improving the selectivity to aromatics. This understanding of the structure-activity relationship in propane dehydro-aromatization reaction helps develop future high-performance catalysts.

关键词： propane dehydro-aromatization reaction tandem catalysts the structure-activity relationship of zinc species

Inactivated H9N2 vaccines developed with early strains do not protect against recent H9N2 viruses:Call for a change in H9N2 control policy

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Journal of Integrative Agriculture 2024年第6期23卷 2144-2148页

作者： Yanjing Liu Qingqing Yu Xiangyu Zhou Wenxin Li xinwen He Yan Wang Guohua Deng Jianzhong shi Guobin Tian Xianying Zeng Hualan Chen College of Veterinary Medicine Gansu Agricultural UniversityLanzhou 730070China state Key Laboratory for Animal Disease Control and Prevention Key Laboratory for Prevention and Control of Avian Influenza and Other Major Poultry DiseasesMinistry of Agriculture and Rural Affairs/Harbin Veterinary Research InstituteChinese Academy of Agricultural SciencesHarbin 150009China National Poultry Laboratory Animal Resource Center Harbin Veterinary Research InstituteChinese Academy of Agricultural SciencesHarbin 150009China Harbin Weike Biotechnology Co. Ltd.Harbin 150009China

H9N2 virus has been widely distributed in wild birds and poultry around the world since its first emergence in the United states of America in 1966(Gu et al.2017;Carnaccini and Perez 2020).The virus appeared in chickens in China in the early 1990s,and over the last two decades has gradually become the dominant epidemic subtype(sun and Liu 2015;Bi et al.2020).Although H9N2 virus infection alone cannot cause severe disease or death in poultry,H9N2 virus-infected birds experience a degree of egg production drop and can be easily infected by other pathogens,thus causing economic losses for poultry industry.

关键词： H9N2 poultry policy

Beyond the Gut:The intratumoral microbiome’s influence on tumorigenesis and treatment response

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Cancer Communications 2024年第10期44卷 1130-1167页

作者： Hao Zhang Li Fu xinwen Leiliang Chunrun Qu Wantao Wu Rong Wen Ning Huang Qiuguang He Quan Cheng Guodong Liu Yuan Cheng Department of Neurosurgery The Second Affiliated HospitalChongqing Medical UniversityChongqingP.R.China Department of Gastroenterology The Second Affiliated HospitalChongqing Medical UniversityChongqingP.R.China Department of Neurosurgery Xiangya HospitalCentral South UniversityChangshaHunanP.R.China National Clinical Research Center for Geriatric Disorders Xiangya HospitalCentral South UniversityChangshaHunanP.R.China Department of Oncology Xiangya HospitalCentral South UniversityChangshaHunanP.R.China

The intratumoral microbiome(TM)refers to the microorganisms in the tumor tissues,including bacteria,fungi,viruses,and so on,and is distinct from the gut microbiome and circulating *** is strongly associated with tumorigenesis,progression,metastasis,and response to *** paper highlights the current status of *** sources,adjacent normal tissue,circulatory system,and concomitant tumor co-metastasis are the main origin of *** advanced techniques in TM analysis are comprehensively ***,TMis involved in tumor progression through several mechanisms,including DNA damage,activation of oncogenic signaling pathways(phosphoinositide 3-kinase[PI3K],signal transducer and activator of transcription[sTAT],WNT/β-catenin,and extracellular regulated protein kinases[ERK]),influence of cytokines and induce inflammatory responses,and interaction with the tumor microenvironment(anti-tumor immunity,pro-tumor immunity,and microbial-derived metabolites).Moreover,promising directions of TM in tumor therapy include immunotherapy,chemotherapy,radiotherapy,the application of probiotics/prebiotics/synbiotics,fecal microbiome transplantation,engineered microbiota,phage therapy,and oncolytic virus *** inherent challenges of clinical application are also *** review provides a comprehensive landscape for analyzing TM,especially the TM-related mechanisms and TM-based treatment in cancer.

关键词： analysis methods immunotherapy intratumoral microbiome treatment application tumorpromotive and tumor-suppressive mechanisms

Effects of Curcumin on Neuroinflammation and the Nrf2/HO-1 Pathway in Rat Brains Following Gas Explosion

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Biomedical and Environmental sciences 2024年第8期37卷 943-947页

作者： xinwen Dong Yaguang su Zheng Luo Lyufei Deng Xiaofeng Han Yifang Liang sanqiao Yao Weidong Wu Jia Cao Linqiang Tian Yichun Bai Wenjie Ren Health school of Public Health Xinxiang Medical UniversityXinxiang 453003HenanChina Toxicology Research Institute PLA Army Medical UniversityChongqing 400038China Institute of Trauma and Orthopaedics Xinxiang Medical UniversityXinxiang 453003HenanChina Institutes of Health Central Plains Xinxiang Medical UniversityXinxiang 453003HenanChina

Gas explosions,a major occupational hazard in China’s coal industry,endanger the lives and health of *** explosions cause a specific type of traumatic brain injury with complex mechanisms,leading to disability and death.A study by Zhao et *** magnetic resonance imaging on 49 gas explosion survivors revealed significant damage to brain regions like the hippocampus and cerebral cortex.

关键词： damage Nrf2 cerebral

Laser-induced breakdown spectroscopy as a method for millimeter-scale inspection of surface flatness

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Plasma science and Technology 2024年第9期26卷 148-155页

作者： Jinrui YE Yaju LI Zhao ZHANG Xinwei WANG Kewei TAO Qiang ZENG Liangwen CHEN Dongbin QIAN shaofeng ZHANG Lei YANG xinwen MA Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000People’s Republic of China Advanced Energy science and Technology Guangdong LaboratoryHuizhou 516000People’s Republic of China University of the Chinese Academy of sciences Beijing 100049People’s Republic of China Key Laboratory of Atomic and Molecular Physics&Functional Materials of Gansu Province College of Physics and Electronic EngineeringNorthwest Normal UniversityLanzhou 730070People’s Republic of China Queen Mary University of London Engineering school Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China

A non-contact method for millimeter-scale inspection of material surface flatness via Laser-Induced Breakdown spectroscopy(LIBs)is investigated *** experiment is performed using a planished surface of an alloy steel sample to simulate its various flatness,ranging from 0 to 4.4 mm,by adjusting the laser focal plane to the surface distance with a step length of 0.2 *** is found that LIBs measurements are successful in inspecting the flatness differences among these simulated cases,implying that the method investigated here is *** is also found that,for achieving the inspection of surface flatness within such a wide range,when univariate analysis is applied,a piecewise calibration model must be *** is due to the complex dependence of plasma formation conditions on the surface flatness,which inevitably complicates the inspection *** solve the problem,a multivariate analysis with the help of Back-Propagation Neural Network(BPNN)algorithms is applied to further construct the calibration *** detailed analysis of the model performance,we demonstrate that a unified calibration model can be well established based on BPNN algorithms for unambiguous millimeter-scale range inspection of surface flatness with a resolution of about 0.2 mm.

关键词： laser-induced breakdown spectroscopy machine learning surface flatness

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梁漱溟文化论的社会伦理关怀和世界文明视野

社会科学 2024年第8期 35-46页

作者：吴新文复旦大学中国研究院

梁漱溟一生念兹在兹的是中国的未来与整个人类的前途和命运。他的文化论以人身论、人心论为前提,以人生论、道德论和文明论为归宿,具有鲜明的社会伦理关怀。他所关注的伦理不是道德原则或行为规范层面的“小伦理”,而是人心、人性层面... 详细信息

梁漱溟一生念兹在兹的是中国的未来与整个人类的前途和命运。他的文化论以人身论、人心论为前提,以人生论、道德论和文明论为归宿,具有鲜明的社会伦理关怀。他所关注的伦理不是道德原则或行为规范层面的“小伦理”,而是人心、人性层面的“大伦理”,即他所理解的“理性”或“人情”。要增进不同国家和文明体之间的相互理解,促成人类的和平相处,最终实现“四海一家”“天下文明”的理想,关键是要基于世界文明的视野,让人类“明心见性”,认识到可普遍化的“大伦理”之于文化的根本意义,进而唤醒人类在文化上的觉悟,提高人类的生命境界。梁漱溟的文化论对于深入推进“第二个结合”,对于建设中华民族现代文明,建构人类命运共同体,无疑具有重要的借鉴意义。

关键词：梁漱溟文化伦理国家天下文明

Er:sr_(5)(PO_(4))_(3)F透明陶瓷的制备和上转换光学性能

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硅酸盐学报 2024年第3期52卷 874-881页

作者：刘鑫纹梅炳初谭国龙武汉理工大学材料学院材料复合新技术国家重点实验室武汉430000

随着激光二极管朝着小型化和高度集成化目标的不断发展,包括sr_(5)(PO_(4))_(3)F (s-FAP)在内的一些热管理性能一般的晶体材料开始重新进入研究者的视野。本研究采用共沉淀法合成了2%(摩尔分数) Er^(3+):s-FAP多晶纳米粉体,通过热压烧... 详细信息

随着激光二极管朝着小型化和高度集成化目标的不断发展,包括sr_(5)(PO_(4))_(3)F (s-FAP)在内的一些热管理性能一般的晶体材料开始重新进入研究者的视野。本研究采用共沉淀法合成了2%(摩尔分数) Er^(3+):s-FAP多晶纳米粉体,通过热压烧结合成出光学性能优异的Er:s-FAP透明陶瓷,并对Er:s-FAP多晶纳米粉体和透明陶瓷进行了表征。结果表明:2%Er^(3+):s-FAP粉体和陶瓷的物相结构都符合六方晶系氟磷灰石结构,没有观察到异常杂质峰。2%Er^(3+):s-FAP粉体整体呈现出分散性优良的短棒状外观,其平均晶粒尺寸为(19.10±1.6) nm。对应陶瓷的平均晶粒尺寸为386.6±20.8 nm,断面和表面微观结构都呈现出均匀致密的特征。2%Er^(3+):s-FAP透明陶瓷在500 nm和1 000 nm波长处的线性光学透过率分别达到了66.14%和84.41%。Er^(3+)在s-FAP陶瓷中的主要的发射峰位于550 nm和661 nm,分别对应绿色光和红色光的发射,红绿光的上转换发光是由双光子吸收过程决定,最后陶瓷在550 nm波长位置的荧光寿命为2.1μs。

关键词：铒离子掺杂氟磷酸锶上转换性能光学性能透明陶瓷

Farnesyltransferase inhibitor lonafarnib suppresses respiratory syncytial virus infection by blocking conformational change of fusion glycoprotein

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signal Transduction and Targeted Therapy 2024年第7期9卷 2970-2983页

作者： Qi Yang Bao Xue Fengjiang Liu Yongzhi Lu Jielin Tang Mengrong Yan Qiong Wu Ruyi Chen Anqi Zhou Lijie Liu Junjun Liu Changbin Qu Qingxin Wu Muqing Fu Jiayi Zhong Jianwei Dong sijie Chen Fan Wang Yuan Zhou Jie Zheng Wei Peng Jinsai shang xinwen Chen Guangzhou National Laboratory Guangzhou 510005China state Key Laboratory of Respiratory Disease Guangzhou Medical UniversityGuangzhou 511436China Wuhan Institute of Virology Chinese Academy of SciencesWuhan 430071China school of Basic Medical sciences Guangzhou Medical UniversityGuangzhou 511436China GMUGIBH Joint school of Life sciences Guangzhou Medical UniversityGuangzhou 511436China Guangzhou Institutes of Biomedicine and Health Chinese Academy of SciencesGuangzhou 510530China shanghai Institute of Materia Medica Chinese Academy of SciencesShanghai 201203China school of Pharmaceutical science and Technology Hangzhou lnstitute for Advanced StudyUCASHangzhou 310024China

Respiratory syncytial virus(RsV)is the major cause of bronchiolitis and pneumonia in young children and the *** are currently no approved RsV-specific therapeutic small molecules *** high-throughput antiviral screening,we identified an oral drug,the prenylation inhibitor lonafarnib,which showed potent inhibition of the RsV fusion *** exhibited antiviral activity against both the RsV A and B genotypes and showed low cytotoxicity in HEp-2 and human primary bronchial epithelial cells(HBEC).Time-of-addition and pseudovirus assays demonstrated that lonafarnib inhibits RsV entry,but has farnesyltransferase-independent antiviral ***-electron microscopy revealed that lonafarnib binds to a triple-symmetric pocket within the central cavity of the RsV F metastable pre-fusion *** at the RsV F sites interacting with lonafarnib showed resistance to lonafarnib but remained fully sensitive to the neutralizing monoclonal antibody ***,lonafarnib dose-dependently reduced the replication of RsV in BALB/c ***,lonafarnib could be a potential fusion inhibitor for RsV infection.

关键词： neutral metastable approved

党委统领合作社:共同富裕目标下集体经济发展的模式创新——基于贵州鸭池镇“两包一干”的经验诠释

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南京农业大学学报（社会科学版） 2024年第5期24卷 47-58页

作者：杜永康张新文南京农业大学公共管理学院南京210095

党委统领合作社模式是推进乡村共同富裕和农业合作化进程的有益尝试,揭示了未来农村集体经济发展的可能路向。基于可持续生计分析框架,结合鸭池镇“两包一干”的实践经验,对该模式的出场情境、实践历程和运作机理进行剖析。集体经济升... 详细信息

党委统领合作社模式是推进乡村共同富裕和农业合作化进程的有益尝试,揭示了未来农村集体经济发展的可能路向。基于可持续生计分析框架,结合鸭池镇“两包一干”的实践经验,对该模式的出场情境、实践历程和运作机理进行剖析。集体经济升级转型困难、村际发展失衡及治理效能低下形塑了党委统领合作社的出场逻辑。在具体实践中,乡镇党委通过整合资金、技术和人力等资源要素有效深化了合作社的生计资本,依托党建引领推动村社组织再造和主体利益联结,进而形塑乡村治理共同体和利益共同体,并通过统筹市场开发降低合作社分散交易的制度成本和生计脆弱性,显著提升了合作社的生计输出。立足共同富裕的远景目标,地方政府应摆脱资源输入的路径依赖,以提升集体经济组织的生计能力为政策导向,加快构建整体性政策帮扶体系,同时以跨村联营为着力点,建立更高水平的合作化发展,在这一过程中,要坚持党的领导,将农民组织起来,引领全体农民在共建共治共享中迈向共同富裕。

关键词：共同富裕农村集体经济党委统领合作社可持续生计跨村联营