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Room-temperature ferromagnetism and perfect spin filtering in transition-metal-doped graphyne nanoribbons

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Room-temperature ferromagnetism and perfect spin filtering i...

中国、澳大利亚、美国老年受试者生活方式与健康状况调查与比较

中国真空学会2014学术年会

作者： j.B.Pan S.X.Du l.D.Pan Y.F.Zhang H.-j.Gao S.T.Pantelides Institute of Physics Chinese Academy of Science Department of Physics and Astronomy Vanderbilt University Materials Science & Technology Division Oak Ridge National Laboratory

Ferromagnetism in half-metallic two-dimensional materials can lead to unique spintronics *** we report first-principles calculations that predict monolayer graphyne nanoribbons(GyNRs),analternative to graphene,doped randomly with 3d-series transition metal atoms at high concentrations are ferromagnetic(FM)with Curie temperatures above room ***,Cr-,Fe-and Co-doped GyNRs are half-mettallic with 100%spin polarization at the Fermi level and can act as perfect spin *** high spin polarization of the current is preserved up to large bias *** study provides a basis for the fabrication of GyNRs with high Curie temperature and spin-polarized electron transport properties.

关键词： ferromagnetism spin filtering graphyne nanoribbons

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北京体育大学学报 1998年第4期21卷 25-29页

作者：杨静宜,孙卫星,李昕,B.A.Hawkins,S.j.Eklund,A.l.Binkley 北京体育大学运动医学教研室!北京 100084 北京体育大学运动医学教研室!北京 100084 北京体育大学运动医学教研室!北京 100084 印地安那大学!美国印地安那大学!美国维多利亚理工大学!澳大利亚

由中国、澳大利亚和美国征集214名（男111名，女103名）老年人（60～83岁）为本研究受试者。采用Osness等人“60岁以上成人功能素质评定”方法，以及在Duke大学“多项功能评定问卷”基础上经补充和修改的问卷调查表，对受试者进行综合... 详细信息

由中国、澳大利亚和美国征集214名（男111名，女103名）老年人（60～83岁）为本研究受试者。采用Osness等人“60岁以上成人功能素质评定”方法，以及在Duke大学“多项功能评定问卷”基础上经补充和修改的问卷调查表，对受试者进行综合评价。调查结果初步揭示了中、澳、美老年人在社会资源、身体健康状况、体力和智力素质、营养、功能独立情况、日常活动模式及对生活的满意程度等方面的差异。证实了“现场试验”是一组对技术和仪器设备要求不高，适用于老年人口进行身体素质评定的方法。这种“问卷调查表”还需要做进一步的少量修改。它确认了来自世界不同国家的研究人员共同合作，完成有多种纪律约束的研究课题是可行的。

关键词：中国澳大利亚美国老年人健康状况生活方式方法学

Infection of hepatitis B virus in extrahepatic endothelial tissues mediated by endothelial progenitor cells

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南京医科大学学报（自然科学版） 2007年第10期27卷 1091-1091页

作者： Rong, Q. F. Huang, j. Su, E. B. li, j. li, j. Y. Zhang, l. l. Cao, K. j. Nanjing Med Univ Affiliated Hosp 1 Dept Cardiol Nanjing 210029 Peoples R China. Nanjing Med Univ Affiliated Hosp 1 Dept Infect Dis Nanjing 210029 Peoples R China. Nanjing Med Univ Affiliated Hosp 1 Dept Hematol Nanjing 210029 Peoples R China.

Background: Hepatitis B virus(HBV) replication has been reported to be involved in many extrahepatic viral disorders; however, the mechanism by which HBV is trans-infected into extrahepatic tissues such as HBV associated myocarditis remains largely ***:In this study, we showed that human cord blood endothelial progenitor cells (EPCs), but not human umbilical vein endothelial cells (HUVECs) could be effectively infected by uptake of HBV in *** of EPCs with HBV resulted in HBV DNA and viral particles were detected in EPCs at day 3 after HBV challenge, which were peaked around day 7 and declined in 3 ***, HBV envelope surface and core antigens were first detected in EPCs at day 3 after virus challenge and were retained to be detectable for 3 weeks.

关键词：乙型肝炎病毒祖细胞肝细胞肝组织鉴别

田鼠亚科啮齿动物的社会组织、交配制度和栖息地的关系(英文)

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兽类学报 1986年第4期 273-285页

作者： l.l.Getz,j.E.Hofmann,刘季科美国伊利诺大学生态、行为和演化学系美国伊利诺大学生态、行为和演化学系美国伊利诺大学生态、行为和演化学系

田鼠亚科的两种啮齿动物黄腹田鼠(prairie vole,Microtus ochrogaster)和草甸田鼠(meadow vole,***)是社会组织完全不同的两个种。黄腹田鼠原始栖息地在北美北部中央大片毗连的草原上,生境较稳定。该种易于接触,其交配为一夫一妻制,并... 详细信息

田鼠亚科的两种啮齿动物黄腹田鼠(prairie vole,Microtus ochrogaster)和草甸田鼠(meadow vole,***)是社会组织完全不同的两个种。黄腹田鼠原始栖息地在北美北部中央大片毗连的草原上,生境较稳定。该种易于接触,其交配为一夫一妻制,并成对结合。雌雄鼠共居在同一巢穴里,雌鼠只与配对雄鼠交配,雄鼠回避非配对的外来雌鼠,并分担巢穴的营造和维修,同时也照管幼仔,包括饲养、聚集和挽救。幼体断乳后,多数仍留在巢穴里,并协助照管下一窝幼仔,不参加繁殖,只有那些从家族群中扩散出去,并与无亲缘关系的雄鼠交配的雌性青年鼠才能繁殖后代。这种交配制度的作用是扩散种群,子代为寻求婚配而从家族群中离去,从而避免局部种群密度增高,以及由此造成的食物短缺。由于繁殖对是由非亲缘关系的个体结合而成,避免了近亲繁殖及由此带来的遗传性有害影响。草甸田鼠原始栖息地在北美东部和北部林区中小片隔离的草甸生境斑块群内。该鼠回避接触,为混杂性交配制。成年雌鼠和雄鼠各自占领巢区,并不共居在同一巢穴里。只有当雌鼠处于发情期间,雄鼠才能接近其巢穴,交配一结束,雄鼠立即远离雌鼠巢穴,不再次交配,对交配产生的后代漠不关心。幼体断乳后,即与母体分离,对下一窝幼仔不提供照顾。同窝子代之间,子代与亲代

关键词： Prairie vole Microtus ochrogaster(黄腹田鼠) Meadow vole Microtus pennsylvanicus(草甸田鼠) Social organization(社会组织) Mating systems(交配系统)

NMR STUDIES ON THE FORMATION OF PAllADIUM-RHODIUM HETERODINUClEAR COMPlEXES wITH BRIDGING BIS-(DIPHENYlPHOSPHINO)METHANE

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Chinese journal of Structural Chemistry 1992年第1期 24-29页

作者： Selbin. j. lA 70803 Department of Chemistry U. S. A. louisiana State University. Baton Rouge

Based on proton, carbon-13, and phosphorus-31 NMR and IR spectroscopic studies, three heterodinuclear complexes trans-(NC)2Pd(μ-dppm)2Rh-Cll (where l=P(OEt)3, PPh3and P(p-Tol)3, dppm =Ph2PCH2PPh2) have been i-dentified. They were synthesized by reacting the same starting materials, trans-(NC)2Pd(dppm)2, and [RhCl(cod)]2, with appropriate monophosphine ligands via different intermediates involving different reaction sequences. Other three heterodinuclear complexes, trans-(NC)2Pd(μ-dppm)2PhCll (where l = P(OPh)3, PPh2(p-Tol) , and PPh2(OMe)) , have also beem obtained.

关键词： NMR STUDIES ON THE FORMATION OF PAllADIUM-RHODIUM HETERODINUClEAR COMPlEXES wITH BRIDGING BIS DIPHENYlPHOSPHINO)METHANE ppm

Cathodic activated stainless steel mesh as a highly active electrocatalyst for the oxygen evolution reaction with self-healing possibility

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journal of Energy Chemistry 2020年第10期29卷 153-160页

作者： Gui-Rong Zhang liu-liu Shen Patrick Schmatz Konrad Krois Bastian j.M.Etzold Ernst-Berl-Institut für Technische und Makromolekulare Chemie Technische Universit鋞Darmstadt64287 DarmstadtGermany

The oxygen evolution reaction(OER)represents one of the major bottlenecks for broad-based applications of many clean energy storage/conversion *** key to solving this problem lies in developing high-performing,cost effective and stable catalysts for the ***,we demonstrate that ubiquitous stainless steel mesh(SSM)materials activated by a facile cathodization treatment can be employed as a high performing OER catalyst,as showcased by the impressively low overpotentials of 275 and 319 mV to reach the benchmark current densities of 10 and 100 mA cm^−2(1.0 M KOH),*** SSM also exhibits excellent performance in a two-electrode water electrolyzer,which requires a low cell voltage of 1.58 at 10 mA cm^−2 and outperforms many of water electrolyzers using earth-abundant OER ***,cathodized SSM with minor performance degradation after the stability test can also be readily healed by subjecting it to an additional cathodization *** is disclosed that the superior performance of cathodized SSMs stems from the surface enrichment of OER active Ni(oxy)hydroxide,facile gas-bubble removal and transportation over the unique mesh-structured surfaces,while the abundant reservoir of nickel in the bulk allows healing of the catalyst by a facile cathodization.

关键词： Oxygen evolution reaction water splitting Stainless steel mesh Cathodization Mass transfer limitation Self-healing

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战后的英国哲学

世界哲学 1983年第6期 77-82页

作者： l.j.科恩邱仁宗

Ⅰ六年之久的第二次世界大战是现代英国哲学史上的重要分水岭。由于所有的人力和财力都用于战争,几乎没有什么重要的哲学活动。结果,就把时间消磨在旧有的争论上。本世纪初,黑格尔主义的唯心论者,如F.H.布拉德雷和j.麦克塔格特与常识或... 详细信息

Ⅰ六年之久的第二次世界大战是现代英国哲学史上的重要分水岭。由于所有的人力和财力都用于战争,几乎没有什么重要的哲学活动。结果,就把时间消磨在旧有的争论上。本世纪初,黑格尔主义的唯心论者,如F.H.布拉德雷和j.麦克塔格特与常识或经验实在论者,如G.E.穆尔和B.罗素之间的争论占支配地位。1945年前后,穆尔退休了,罗素对学院哲学几乎已作出了他最后的贡献,黑格尔主义则主要由一些在苏格兰的第二流人物来代表。R.G.科林伍德于1943年逝世,对他有直接影响的与其说是黑格尔,不如说是克罗齐,他没有留下学术上的接班人,而在1948年后,H.H.普赖斯

关键词：日常语言哲学维特根斯坦赖尔逻辑实证主义逻辑经验主义拉卡托斯英国大不列颠及北爱尔兰联合王国

SV2B defines a subpopulation of synaptic vesicles

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journal of Molecular Cell Biology 2023年第9期15卷 1-13页

作者： Isabelle Paulussen Hannes Beckert Timothy FMusial lena j.Gschossmann julia wolf Mathieu Schmitt jérôme Clasadonte Georges Mairet-Coello Christian wolff Susanne Schoch Dirk Dietrich Synaptic Neuroscience Team Department of NeurosurgeryUniversity Hospital BonnBonn 53127Germany Synaptic Neuroscience Team Department of NeuropathologyUniversity Hospital BonnBonn 53127Germany Microscopy Core Facility Medical FacultyUniversity of BonnBonn 53127Germany UCB Pharma Braine l’Alleud 1420Belgium

Synaptic vesicles can undergo several modes of exocytosis,endocytosis,and trafficking within individual synapses,and their fates may be linked to different vesicular protein ***,we mapped the intrasynaptic distribution of the synaptic vesicle proteins SV2B and SV2A in glutamatergic synapses of the hippocampus using three-dimensional electron ***2B was almost completely absent from docked vesicles and a distinct cluster of vesicles found near the active *** contrast,SV2A was found in all domains of the synapse and was slightly enriched near the active ***2B and SV2A were found on the membrane in the peri-active zone,suggesting the recycling from both clusters of ***2B knockout mice displayed an increased seizure induction threshold only in a model employing high-frequency *** data show that glutamatergic synapses generate molecularly distinct populations of synaptic vesicles and are able to maintain them at steep spatial *** almost complete absence of SV2B from vesicles at the active zone of wildtype mice may explain why SV2A has been found more important for vesicle release.

关键词： 3D electron microscopy synaptic vesicles synaptic vesicle proteins endocytosis trafficking spatial organization

应用固相萃取高效液相色谱-质谱法测定水中多种农药残留

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农业环境科学学报 2006年第B9期25卷 755-758页

作者：申义珍 j.l.Martinez Vidal R.Romero Gonealez M.E.Hernandez Torres 扬州市农业环境监测站江苏扬州225002 University of Almeria Spain

应用HlB固相萃取高效液相色谱-质谱法同时测定水中杀虫剂、杀菌剂、除草剂、杀螨剂、杀线虫剂等5类30种农药残留,标准曲线决定系数r2均大于0.99,标准添加回收率达76%￣107%,平均为87.9%。在实际测定的10个水样中,有个水样的杀铃脲(Trifl... 详细信息

应用HlB固相萃取高效液相色谱-质谱法同时测定水中杀虫剂、杀菌剂、除草剂、杀螨剂、杀线虫剂等5类30种农药残留,标准曲线决定系数r2均大于0.99,标准添加回收率达76%￣107%,平均为87.9%。在实际测定的10个水样中,有个水样的杀铃脲(Triflumuron)含量超标。

关键词：农药液相色谱质谱水固相萃取

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