简介：阶段和磁电机在合金R(Co_(1-x)Sn_x)的热量的效果有x=的_20，0.025，0.050，0.075，和0.100被X光检查衍射分析和磁化测量调查。在RCo_2的Sn的替换是有限的。为RCo_2的合金的立方的MgCu_2-typestructure被X光检查粉末衍射证实，留下的合金主要由RCo_2阶段组成了，与一些RCo_3和R_5Sn_3杂质阶段一起。Theimpurity阶段随Sn内容的增加增加。合金的T_c不对为Dy(Co_(1-x)Sn_x)的Sn替换很敏感_2和Tb(Co_(1-x)Sn_x)_2inGd(Co_(1-x)Sn_x)_2，居里温度显著地增加。最大的磁性的熵在合金Dy(Co_(1-x)Sn_x)改变_2(x=0，0.025，0.050，0.075)是5.78，5.43，3.88，并且2.98J·kg~(-1)·K~(-1),分别地，并且那些在Tb(Co_(1-x)Sn_x)_2(x=0，0.025)是3.44，and2.29J·kg~(-1)·K~(-1)分别地0-2.0T在应用的地里变化。
简介：Reactionsofthe6-hydroxy-thiopyrano[3,4-c]pyridine-5-carbonitrilederivative1withα-halo-carbonylcompoundsgavetheortho-substitutedintermediates2a-cwhichwereconvertedintofuro[2,3-b]thiopyrano[4,3-d]pyridines3a-cbyfusionofafuranmoietyunderbasicconditions.Furthercyclizationof3a-cledtoafusionofapyrimidinering,yieldingthetetracyclicproducts6,7and8.Inaddition,condensationof6withvariousaromaticaldehydesaffordedthecorrespondingimines9a,b.Mannichreactionof7gaveproducts10a,b.
简介：[Co3(1,2-S2C6H4)3(PPh3)3][CoBr3(DMF)].sol(1,sol=CHCl3,O(C2H5)2,H2O)wasobtainedfromthereactionofCoBr(PPh3)3withNa2(S2C6H4)inchloroform.TheCo3coreinthecationof1exhibitsametal-metalbondedisoscelestriangle,inwhichthetwolongerCo-CobondsarebothbridgedbyS2C6H4ligandsontwosidesofthetriangleplanerespectively,whilethebottomshortCo-CobondisbridgedbythethirdbidentateS2C6H4ligand.Aseriesofpolynu-clearcobaltclustercompoundswithphosphine,thiolateand/orsulphurligandswerepreparedbylowoxidationstateCo+withthiolatesinorganicsolvents.Thesetri-,tetra-,hexa-,heptanuclearclustercompounds1-8withvarioustypesofcrystalstructurescanbeviewedasthecondensedpolynuclearcobaltcomplexesthatthecobaltatomframeworkswithsulphurbridgedwerebuiltthroughthesmalltriangularunitsof[Co3S3nL3](n=1,2)withorwithout[CoL](L=PR3,Br,Cl,5-C5H5)fragments.
简介：Lactivicin,anovelinhibitorofbacterialcellwallsynthesis,wasisolatedfromtheculturefil-tratesofmicroorganismYK-258andYK-422.Itexhibitsbiologicalactivitiessimilartothoseoftheβ-lactamantibiotics,althoughitdoesnothaveaβ-lactamringinitsmolecule.Sincethediscoveryoflactivicin,hundredsofitsderivativeshavebeensynthesized.Most
简介：Treatmentof4-amino-3-(1-aryl-5-methyl-1,2,3-triazol-4-yl)-5-mercapto-1,2,4-triazoles/2-amino-5-(1-aryl-5-methyl-1,2,3-triazole-4-yl)-1,3,4-thiadiazoleswithbenzaldehyde,acetoneandω-bromoacetophenonewastestedandcompared.ThetitlecompoundsSchiffbases,amides,imidazolo[2,1-b]-1,3,4-thiadiazolesand7H-s-triazolo[3,4-b]-1,3,4-thiadiazineshavebeenconfirmedbyelementalanalyses,^1HNMR,IRandMSspectra.AllthecompoundshavealsobeenscreenedfortheirantibacterialactivitiesagainstB.subtilis,S.aureusandE.coli.
简介：<正>卡佩罗终于驾临皇马了,这个当年在伯纳乌球迷嘘声中下课的冠军教练竟然成为百年皇马走出困境的最大希望。和当年离开罗马时一样,卡佩罗带来了自己战术体系中最重要的球员——埃莫森。失去马克莱莱被认为是皇马转会市场上最大的失误所在,皇马高层由于吝啬法国人的加薪要求而不得不花巨资寻求其替代者,可问题的结症在于无论是格拉维森还是加西亚都无法给予后防线足够的保护。穆里尼奥在获得巴拉克和舍瓦后完全没有表现出想像中的喜悦,相反社区盾杯的失利让他还在为中场布置而伤神。最近几年,4-2-3-1双后腰阵形在欧洲几大豪门间相继流行起来,而传统的4-4-2两翼齐飞却不断受到冷落,连边路之王
简介：目的对2HRZE/4H3R3和2H3R3Z3E3／4H3R3治疗初治涂阳肺结核病患者社会效果评价，为结核病的社会控制提供依据。方法应用中国卫生部结核病控制项目2HRZE/4H3R3方案，治疗初治涂阳肺结核病人的监测资料和2003年对《中国结核病控制规划(2001—2010)))阶段评估，抽查“世界银行贷款+中国结核病控制项目”2H3R3Z3E3/4H3R3方案治疗初治涂阳肺结核病人治疗的资料进行分析。结果在落实较好的全程督导服药治疗下，两方案已达到国家规划目标。目前2H3R3Z3E3/4H3R3未能达到国家规划目标，治愈率明显较强化期每日服药方案低，而失败率、丢失率、副反应停药率明显较高。结论经费落实不到位导致患者全程督导服药治疗不能很好落实，是影响化疗效果的主要原因。由于全程督导服药治疗不能很好落实，致使全程隔日服药方案不能胜任规划目标的要求，提示结核病控制的方向。
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