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Aroma Volatile Compound Analysis of SPME Headspace and Extract Samples from Crabapple (Malus sp.) Fruit Using GC-MS

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Agricultural Sciences in China 2008年第12期7卷 1451-1457页

作者： li xiao-lei KANG lua.HU Jing-jing li Xue-fei SHEN xiang State Key Laboratory for Crop Biology College of Horticulture Science and Engineering Shandong Agricultural University Tai＇an 271018. P.R.China

Volatile compounds from the ripened crabapple fruit of six varieties （Red Splendor, Strawberry Parfait, Pink Spire, Radiant, Sparkler, and Flame） were analyzed by the use of the SPME/GC/MS method. The changes in the volatiles between the ripened and upon full maturity fruit states were studied in Red Splendor and Strawberry Parfait. An effort was made to summarize an effective method for searching and identifying new idioplasms containing a particular fruit aroma within Malus. A total of 37 compounds were identified from the sample. The main aroma volatiles of the six varieties of fruit were comprised of 2-hexenal, 3-hexenal, hexanal, 2,4-hexadienal, benzaldehyde, diethyl phtbalate. The main volatile compound of the crabapple fruit was 2-hexenal, but the relative content percentages were different （45.37, 21.98, 33.56, 32.21, 38.60, and 45.88%）. The aroma components accumulated differently as the fruits ripened. The relative content of aldehydes and esters decreased as alcohols increased after the Red Splendor and Strawberry Parfait fruit ripened. For Red Splendor, the main volatile was still 2-hexenal, but the relative content decreased to 42.89%, and the relative content of alcohols increased by 13.86% as aldehydes and esters declined by 12.16 and 7.18%, respectively. For Strawberry Parfait, the main volatile was changed to cyclohexanol, and the relative content increased to 46.43%, while the relative content of alcohols increased by 49.03% as aldehydes and esters declined by 23.74 and 9.34%, respectively.

关键词： crabapple (Malus sp.) fruit volatile compound

Influencing Factors of Healthy Aging Risk Assessed Using Biomarkers:A life Course Perspective

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China CDC weekly 2024年第11期6卷 219-224,I0014-I0017页

作者： Cedric Zhang Bo lua.Yajie Gao Jinming li Xingqi Cao Xinwei Lyu Yinuo Tu Shuyi Jin Zuyun liu Center for Clinical Big Data and Analytics of the Second Affiliated Hospital and Department of Big Data in Health Science School of Public Healththe Key Laboratory of Intelligent Preventive Medicine of Zhejiang ProvinceZhejiang University School of MedicineHangzhou CityZhejiang ProvinceChina Institute of Epidemiology and Health Care University College LondonLondonUK College of Chemical and Biological Engineering Zhejiang UniversityHangzhou CityZhejiang ProvinceChina

Assessing individual risks of healthy aging using biomarkers and identifying associated factors have become important areas of *** this study,we conducted a literature review of relevant publications between 2018 and 2023 in both Chinese and English *** studies have predominantly used single biomarkers,such as C-reactive protein,or focused on specific life course stages and factors such as socioeconomic status,mental health,educational levels,and unhealthy *** summarizing the progress in this field,our study provides valua.le insights and future directions for promoting healthy aging from a life course perspective.

关键词： such insight directions

PROTECTIVE ROLES OF D1 PROTEIN TURNOVER AND THE XANTHOPHYLL CYCLE IN TOMATO(SOLANUM LYCOPERSICUM)UNDER SUB-HIGH TEMPERATURE AND HIGH liGHT STRESS

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Frontiers of Agricultural Science and Engineering 2021年第2期8卷 262-279页

作者： Tao lua.Jiazhi LU Mingfang QI Zhouping SUN Yufeng liU Tianlai li Horticulture Department Key Laboratory of Protected Horticulture of Ministry of EducationShenyang Agricultural UniversityShenyang 110866China National&Local Joint Engineering Research Center of Northern Horticultural Facilities Design&Application Technology(liaoning) Shenyang 110866China Key Laboratory of Horticultural Crops Genetic Improvement(Ministry of Agriculture and Rural Affairs of China) Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081China.

D1 protein turnover and the xanthophyll cycle(XC)are important photo-protective mechanisms in plants that operate under adverse ***,streptomycin sulfate(SM)and dithiothreitol(DTT)were used in tomato plants as inhibitors of D1 protein turnover and XC to elucidate their photoprotec-tive impacts under sub-high temperature and high light conditions(HH,35°C,1000 limol m 2.S1).SM and DTT treatments significantly reduced the net photosynthetic rate,apparent quantum efficiency,maximum photochemical efficiency,and potential activity of photosystem II,leading to photoinhibition and a decline in plant biomass under *** increase in reactive oxygen species levels resulted in thylakoid membrane lipid *** addition,there were increased non-photochemical quenching and decreased chlorophyll pigments in SM and DTT application,causing an inhibition of D1 protein production at both transcriptional and translational ***,inhibition of D1 turnover caused greater photoinhibition than XC ***,the recovery levels of most photosynthesis indicators in DTT-treated plants were higher than in SM-treated *** findings support the view that D1 turnover has a more important role than XC in photoprotection in tomato under HH conditions.

关键词： D1 turnover photoinhibition photoprotection photosynthesis tomato xanthophyll cycle

Hyperbranched Azopolymer with Quadruple Responsibility

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Chinese Journal of Polymer Science 2021年第9期39卷 1169-1176页

作者： Chen Tian Ke-Cong Zhou Yu-Fei lua.Jin-Jie li Yuan Yao Xin-Feng Tao Qi-Xin Zhuang Yu-Feng Xie Shao-liang ling Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China Department of Periodontology Shanghai Ninth People's HospitalCollege of StomatologyShanghai Key Laboratory of Stomatology&Shanghai Research Institute of StomatologyShanghai Jiao Tong UniversityShanghai 200011China

Simply constructing multiple responsive polymers with obvious shape and dimension variations on their assemblies upon different stimuli is still rarely *** this study,we report a hyperbranched polymer named HPAzoBAHB-star-PEG_(9) with quadruple-response to light,temperature,pH and oxidation *** polymer contains azobenzene chromophore,sulfide,amide and amine groups in its hydrophobic hyperbranched core,and the core is capped with hydrophilic polyethylene glycol(PEG_(9))***-5tar-PEG_(9) could assemble into unusual leaf-like lamellar micelles at 25℃ under the guidance of orderly arranged H-aggregate of azobenzene *** leaf-like lamellar micelles can transform into vesicles upon UV irradiation and lower temperature,or convert to smaller spherical micelles in acidic or oxidative environments,respectively,with the destroy of ordered azobenzene *** quadruple-responsive hyperbranched polymer is suitable to con struct multiple stimuli-resp on sive micro/nanostructures,or accurate delivery and release following subtle stimuli seque nces.

关键词： Hyperbranched Azopolymer Multiple responsibility Self-assembly

The survey of Cryptosporidium infection among young children in kindergartens in Anhui province

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Journal of Nanjing Medical University 2008年第1期22卷 44-46页

作者： Jun lua.Chaopin li Shan Jiang Song Yea Department of Laboratory Medicine Medical College Anhui University of Science ＆ Technology Huainan 232001 Anhui province China Department of Pathogenic Organism Wannan Medical College Wuhu 241001 Anhui Province China Department of Mining Engineering Huainan Vocational ＆ Technical College Huainan 232001 Anhui province China

Objective：To study the Cryptosporidium infection among young children in Anhui province, and to explore the best way to diagnose the disease. Methods： Stool specimens of 1 204 children were collected; oocysts of Cryptosporidium were identified with auramine O- modified staining, acid-fast staining, safranine T and methylene blue staining, and auramine O-modified acid-fast staining. Results： The detectable rate of Cryptosporidium in four stainings were respectively 2.46%, 1.50%, 1.98% and 3.46%, and there was a higher significant difference in the rate between auramine O-modified acid-fast staining and the others（P 〈 0.005）. The detectable rate was significantly lower in urban children（2.14%, 15/684） than in rural ones（5,19%, 27/520）. Boys and girls had similar detectable rate （1.99%, 24/1 204 vs. 1.50%, 18/1 204）. Cryptosporidium infection was usually subclinical, and its major clinical features included benign diarrhea, mild abdominal pain and nausea. Conclusion：Cryptosporidium infection was relatively common in kindergartens and a higher infection rate was found in rural children. As the majority of the Cryptosporidium infections were subclinical, diagnosis is important although difficult.

关键词： Cryptosporidium children kindergarten

Clinicopathological Characteristics as Predictive Factrs for Lymph Node Metastasis in Submucosal Gastric Cancer

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Chinese Journal of Clinical Oncology 2007年第4期4卷 237-240页

作者： Caigang liu Ping Lu Yang Lu lua.li Ruishan Zhang Huimian Xu Shubao Wang Junqing Chen Department of Oncology First Affiliated Hospital of China Medial University Shenyang 110001. China.

OBJECTIVE To identify clinicopathological characteristics as predictive factors for lymph node metastasis in submucosal gastric cancer, and in addi- tion to establish objective criteria as indications for endoscopic submucosal dissection (ESD). METHODS Data from 130 patients with submucosal gastric cancer were collected, and the relationship between their clinicopathological characteris- tics and the presence of lymph node metastasis was retrospectively analyzed by multivariate analysis. RESULTS In the multivariate logistic regression model, a tumor size of 2 cm or more and an undifferentiated histologic type were found to be inde- pendent risk clinicopathological characteristics for lymph node metastasis. Among 130 patients with submucosal carcinoma, no lymph node metastases were observed in 17 patients who showed neither of the two risk clinicopath- ological characteristics. Lymph node metastasis occurred in 61.1% (22/36) of the patients who had both risk clinicopathological characteristics. CONCLUSION A tumor size of 2 cm or more and an undifferentiated histologic type were significantly and independently related to lymph node metastasis in submucosal gastric cancer. It is rational for the paitients with neither of these two independent risk clinicopathological characteristics to undergo an ESD.

关键词： early gastric cancer lymph node metastasis clinicopathological characteristics endoscopic mucosal resection.

High entropy alloy nanoparticles dual-decorated with nitrogen-doped carbon and carbon nanotubes as promising electrocatalysts for lithium-sulfur batteries

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Journal of Materials Science & Technology 2024年第21期188卷 98-104页

作者： Yujie Ma Yilun Ren Dongyue Sun Biao Wang Hao Wu Haifeng Bian Jiangdong Cao Xueyu Cao Feng Ding Jiahao lua.xiangkang Meng School of Intelligent Manufacturing and Information Jiangsu Shipping CollegeNantong 226010China National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China

lithium–sulfur(li–S)batteries have the advantages of high-energy-density,low cost,and environmental friendliness,but the sluggish sulfur redox reactions and the severe shuttle effect of lithium polysulfide(liPSs)affect their ***,we developed a highly efficient electrocatalyst(CNT/HEA-NC)consisting of high-entropy alloy(HEA)nanoparticles decorated with nitrogen-doped carbon(NC)and carbon nanotubes(CNTs)conductive *** the elaborate nanostructured protocol,the HEA nanoparticles with high catalytic activity accelerate the bidirectional conversion of liPSs,the NC with strong sulfophilic activity effectively adsorb liPSs to suppress the shuttle effect,and the CNT conductive network provides a fast electrons/ions transport *** from the hierarchical confinement,li–S batteries with CNT/HEA-NC modified separators deliver a discharge specific capacity of 692.0 mA h g^(−1)after 300 cycles at 1 C with a capacity decay rate of only 0.03%per *** at a current density of 5 C,the cell exhibits a superior capacity of 521.1 mAh g^(−1).This work provides a general strategy for integrating multifunctional electrocatalysts for high-performance li–S batteries.

关键词： High-entropy alloy Nitrogen-doped carbon Shuttle effect Electrocatalyst li-S batteries

Macrophage Expression of the Nlrp3-R258W Mutant Leads to Severe Organ Damage in Experimental Lupus

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Macrophage Expression of the Nlrp3-R258W Mutant Leads to Sev...

国内中小企业技术创新研究述评与趋势展望——基于1998—2016年1033篇文献的计量分析

第十一届全国免疫学学术大会

作者： Lu Ailing li lua.Niu Junling Wu Shuxian Guo Qiuhong Wang Nianhong Abliz Paride Yang Guiwen An liguo Meng Guangxun Key Laboratory of Molecular Virology and Immunology Institut Pasteur of Shanghai Chinese Academy of Sciences College of life Science Shandong Normal University Department of Laboratory Medicine Central Hospital of Zhabei District Department of Dermatology The First Hospital of Xinjiang Medical University

Systemic lupus erythematosus(SLE)is a systemic autoimmune syndrome associated with severe organ damage resulted from the activation of both adaptive and innate immune ***,a role for caspase-1 in murine lupus has been described,indicating an involvement of inflammasomes in the development of *** multiple inflammasomes identified so far,the NLRP3 inflammasome has been connected with diverse diseases including

关键词： Systemic lupus erythematosus(SLE) Inflammasome NLRP3 kidney Macrophage

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广西财经学院学报 2017年第3期30卷 73-85页

作者：邱璐揭筱纹李菁四川大学商学院四川成都610064 兰州大学经济学院甘肃兰州730000

依据文献计量学方法,运用Cite Space软件对中文社会科学引文索引(CSSCI)数据库中关于我国中小企业技术创新研究作者、核心机构、研究热点主题与演化趋势等内容进行了可视化研究,检索时间跨度为"1998-01-01"至"2016-12-31",有效文献共计1... 详细信息

依据文献计量学方法,运用Cite Space软件对中文社会科学引文索引(CSSCI)数据库中关于我国中小企业技术创新研究作者、核心机构、研究热点主题与演化趋势等内容进行了可视化研究,检索时间跨度为"1998-01-01"至"2016-12-31",有效文献共计1033篇。研究表明,该领域核心议题主要集中在概念内涵、影响因素、模式选取、集群发展、体系构建等方面,现已形成由多个重要学者、科研机构组成的学术共同体,呈现出多元化基础理论与跨学科融合态势,并对未来研究趋势予以展望。

关键词：中小企业技术创新 Citespace 知识图谱趋势