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Morphological,phylogenetic and metabolite profile of Prorocentrum clipeus,a newly recorded epiphytic dinoflagellate in the northern Yellow Sea

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Acta Oceanologica Sinica 2024年第8期43卷 128-141页

作者： Ruifang wang Mengmeng Tong Shiwen Zhou Junjie Zheng Wenguang Zhang Xinfeng Dai Douding Lu Jiarong Hu Tianze Leng Qinglin Mu Zhongyong Yan Jiangning Zeng pengbin wang Ocean College Zhejiang UniversityZhoushan 316021China Key Laboratory of Marine Ecosystem Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China The State Key Laboratory of Marine Pollution Department of Biomedical SciencesCity University of Hong KongHong Kong SAR 999077China Zhejiang Marine Ecology and Environment Monitoring Center Zhoushan 316000China

More than 30 species of benthic Prorocentrum have been identified,some of which produce okadaic acid(OA)and its derivatives,dinophysistoxins(DTXs),which cause diarrhetic shellfish poisoning(DSP).Increasing numbers of benthic Prorocentrum species have been reported in tropical and subtropical waters of *** contrast,only a few benthic Prorocentrum species have been reported in temperate *** this study,morphological descriptions obtained using light microscopy,scanning electron microscopy and molecular characterization of one Prorocentrum clipeus strain isolated from the Yellow Sea are *** clipeus cells were nearly circular in shape,with a collar,ridge,and one *** periflagellar area was wide U-shaped,with two curved projections on platelet *** periflagellar platelets of different sizes were *** morphology closely fits that of the species isolated from other *** analysis based on the molecular sequences of the small subunit(SSU)rDNA,internal transcribed spacer(ITS),and large subunit(LSU)rDNA was performed.A comprehensive metabolomic analysis incorporating target,suspect and non-target screenings was first applied to investigate the intracellular and extracellular metabolite profiles of the current isolate of *** to the results of the target and suspect screenings,179 metabolites or toxins produced by DSP-related algal species,including OA,dinophysistoxin-1(DTX1),dinophysistoxin-2(DTX2)and pectenotoxin-2(PTX2),were not ***-target screening involving feature-based molecular networking(FBMN)provided a global view of major metabolites produced by the *** DF128 strain and revealed 23 clusters belonging to at least 13 compound classes,with organometallic compounds,lipids and lipid-like molecules,phenylpropanoids and polyketides,and benzenoids as major *** date,this is the first record of the characterization of *** in samples from Chinese *** results suppo

关键词： Prorocentrum taxonomy phylogeny metabolite profiling Yellow Sea

Piezoelectric ceramics with high piezoelectricity and broad temperature usage range

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Journal of Materiomics 2021年第4期7卷 683-692页

作者： Qinghu Guo Fei Li Fangquan Xia pengbin wang Xiaoyi Gao Hua Hao Hanxing Liu Huajun Sun Shujun Zhang State Key Laboratory Silicate Materials for Architectures Center for Smart Materials and Device IntegrationSchool of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Electronic Materials Research Laboratory Key Laboratory of the Ministry of EducationXi’an Jiaotong UniversityXi’an710049China School of Chemistry and Chemical Engineering University of JinanJinan250022China Institute for Superconducting and Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongNew South Wales2500Australia State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China

There is a general observation that the Curie temperature and piezoelectric property of the ferroelectric ceramics can be enhanced only at the expense of each other,i.e.,higher piezoelectricity,lower Curie temperature,thus,limits their applications over broad temperature *** this research,Sm-modified 0.15 Pb(Mg_(1/3)Nb_(2/3))O_(3)-(0.85-x)PbZrO_(3)-xPbTiO_(3) ceramics have been studied,where excellent piezoelectric coefficients d33¼720 pC/N,d_(33)*=950 pm/V and high Curie temperature T_(C)=293℃ were simultaneously achieved for x=0.42 composition by designing the morphotropic phase boundary(MPB)with local structural *** particular significance is that a high thermal stability was observed with piezoelectric variation below 20%with temperature up to 280℃,demonstrating that the x=0.42 composition is a good candidate for piezoelectric application over broad temperature range where high temperature stability is *** work provides a good paradigm for designing highperformance piezoelectric ceramics with high thermal stability via a combination of MPB and local structural heterogeneity.

关键词： Piezoelectric ceramics Local structural heterogeneity Electromechanical response Thermal stability

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存活脑出血患者100例临床分析

中国社区医师 2015年第24期31卷 19-19,21页

作者：王鹏滨黑河市第一人民医院(黑龙江) 164300

目的:探讨脑出血患者存活原因。方法:收治存活脑出血患者100例,进行头颅CT扫描,分析临床资料。结果:脑出血部位前3位是基底节(59%))、丘脑(24%)和脑叶(10%)。痊愈18例,好转72例,无变化10例。结论:脑出血好发部位是基底节、丘脑和脑叶,... 详细信息

目的:探讨脑出血患者存活原因。方法:收治存活脑出血患者100例,进行头颅CT扫描,分析临床资料。结果:脑出血部位前3位是基底节(59%))、丘脑(24%)和脑叶(10%)。痊愈18例,好转72例,无变化10例。结论:脑出血好发部位是基底节、丘脑和脑叶,预防脑疝是降低脑出血患者死亡率的关键。

关键词：脑出血存活 CT

陈旧性下壁心肌梗死心电图Ⅱ导联R/Q值与远期预后的关系

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中国社区医师 2015年第23期31卷 120-120,122页

作者：王鹏滨黑河市第一人民医院(黑龙江) 164300

目的:探讨陈旧下壁心肌梗死心电图Ⅱ导联R/Q值与远期预后的关系。方法:总结陈旧性下壁心肌梗死心电图Ⅱ导联R/Q值与A/E-O比值、PEP/LVET比值、心律失常、心绞痛及Ⅱ、Ⅲ、a VF导联缺血性ST段和T波改变的关系。结果:R/Q>2者较R/Q<1者心... 详细信息

目的:探讨陈旧下壁心肌梗死心电图Ⅱ导联R/Q值与远期预后的关系。方法:总结陈旧性下壁心肌梗死心电图Ⅱ导联R/Q值与A/E-O比值、PEP/LVET比值、心律失常、心绞痛及Ⅱ、Ⅲ、a VF导联缺血性ST段和T波改变的关系。结果:R/Q>2者较R/Q<1者心功能较好,心律失常及心绞痛发生率较低,同时心肌供血情况较好。结论:陈旧性下壁心肌梗死患者中,心电图Ⅱ导联R/Q值越大,长期预后越好。

关键词：陈旧性下壁心肌梗死心电图Ⅱ导联 R/Q值预后

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心房纤颤53例治疗分析

中国社区医师 2015年第19期31卷 15-16页

作者：王鹏滨黑河市第一人民医院 164300

目的:分析心房纤颤(Af)的治疗方法。方法:收治Af患者53例,观察不同药物的效果。结果:地高辛是风心病Af治疗的首选药物;西地兰治愈率较高77%(10/13);对冠心病阵发性快速Af尤佳。结论:应用抗心律失常药物治疗Af时,一定要注意其适应证及禁... 详细信息

目的:分析心房纤颤(Af)的治疗方法。方法:收治Af患者53例,观察不同药物的效果。结果:地高辛是风心病Af治疗的首选药物;西地兰治愈率较高77%(10/13);对冠心病阵发性快速Af尤佳。结论:应用抗心律失常药物治疗Af时,一定要注意其适应证及禁忌证,应用时要密切观察其不良反应,及时发现,及时处理。

关键词：房颤治疗药物

应用大剂量的肾上腺素抢救心脏骤停的临床观察

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中国社区医师 2015年第22期31卷 22-22,24页

作者：王鹏滨黑河市第一人民医院黑龙江164300

目的:探讨应用大剂量的肾上腺素抢救心脏骤停的临床观察。方法:收治心脏骤停患者47例,分为大剂量肾上腺素组和常规剂量组。比较两组疗效。结果:大剂量肾上腺素组的自主循环恢复率及复苏成功率明显高于较常规剂量组(P<0.01)。结论:大剂... 详细信息

目的:探讨应用大剂量的肾上腺素抢救心脏骤停的临床观察。方法:收治心脏骤停患者47例,分为大剂量肾上腺素组和常规剂量组。比较两组疗效。结果:大剂量肾上腺素组的自主循环恢复率及复苏成功率明显高于较常规剂量组(P<0.01)。结论:大剂量的肾上腺素抢救心脏骤停疗效显著。

关键词：肾上腺素心脏骤停抢救

钬离子掺杂Na_(0.5)Bi_(8.5)Ti_7O_(27)铋层状结构陶瓷的电学性能与上转换发光光谱研究

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陶瓷学报 2018年第6期39卷 696-702页

作者：江福兰汪鹏彬江向平景德镇陶瓷大学江西景德镇333403

采用固相法制备Ho^(3+)离子掺杂铋层状结构Na_(0.5)Bi_(8.5-x)Ho_xTi_7O_(27)(NBT-BIT-xHo^(3+),0≤x≤0.02),研究了不同Ho^(3+)含量对样品的结构、电学与上转换发光性能的影响。所有样品均为单相的共生结构,Ho^(3+)掺杂未引入其他杂相... 详细信息

采用固相法制备Ho^(3+)离子掺杂铋层状结构Na_(0.5)Bi_(8.5-x)Ho_xTi_7O_(27)(NBT-BIT-xHo^(3+),0≤x≤0.02),研究了不同Ho^(3+)含量对样品的结构、电学与上转换发光性能的影响。所有样品均为单相的共生结构,Ho^(3+)掺杂未引入其他杂相;适量Ho^(3+)离子掺杂使样品的居里温度升高、介电损耗降低、压电常数d_(33)得到提高;当x=0.01时,样品具有最佳的综合电学性能,介电损耗tanδ=0.78%、压电性能d_(33)=21pC/N、Q_m=2887。在980 nm的红外激光对NBT-BIT-xHo^(3+)陶瓷的激发下,从所有样品的上转换发光图谱可以观测到位于550 nm附近较强的绿光和657 nm附近较为微弱的红光,对应于~5S_2/~5F_4→~5I_8和~5F_5→~5I_8的跃迁。随着Ho^(3+)离子浓度的增加,样品的发光颜色从黄绿色向绿色转变。

关键词：铋层状结构压电陶瓷光致发光介电性