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关键词： 绿茶   红茶   茶叶  

摘要： 西班牙用多变量分析法联用图形识别法对绿茶和红茶进行分类。采用判别式来判别,以水提液(EXT)、总多酚(POL)、总游离氨基酸(AA)、咖啡碱(CA)、可可碱(TB)

关键词： 卫生监督   卫生检验  

摘要： 随着人民生活水平的提高,化妆、美容已成为日常生活重要内容,对化妆品的需求也日益增大,不同成分、功能,品牌各异的化妆品进入了人们的生活中。为了使消费者能使用安全卫生的化妆品,我国颁布了《化妆品卫生标准》、《化妆品卫生监督条例》及其实施细则,有力地推动了化妆品卫生标准的贯彻实施和化妆品的卫生安全管理。

关键词： 票据外观   票据法  

关键词： 法律效力   书面形式   法国法   英美法   当事人   意思表示   合同纠纷   民事纠纷   契约   不要式合同   合同形式   法院强制执行   公证人   公证证书   法定形式  

关键词： 保险合同   被保险人   法律问题   投保人   保险单   保险费   财产保险合同   保险法   道德风险   合同成立  

摘要： 也谈保险合同形式及其生效的法律问题——兼与李兆良、蔡广国两同志商榷○周卫东编者按：本刊连续发表了一些争鸣文章，不同作者从不同角度谈了自己的观点，为保险理论和保险法理的完善奉献了一点力量。周卫东写的这篇文章，能够按照保险法第３条：“在中华人民共和国境内...

关键词： 认可检验员   商品检验   贸易经济  

摘要： 认可检验员是商检机构组织外部技术力量对进出口商品进行检验的一种检验形式,同时也是充分依靠生产、供货单位的检验力量,落实出口商品出厂(仓)前检验工作的集中体现,是把商检工作从原来的检验型向监督管理型转移的内容之一。事实证明,认可检验员有利于保证出口商品质量。 陶瓷是汕头地区传统大宗出口商品,而且是地方创汇拳头产品,规格品种繁多,花色琳琅满目,产品远销欧美等国家和地区,在国际市场上具有一定的竞争力。但是由于出口陶瓷具有货期紧、时间短等特点。

关键词： ALLIANCES (International relations)   CHEMICAL industry  

摘要： Reports that Mobil Technology, Akzo Nobel Catalysts, M.W. Kellogg and Fina Research have agreed to form an alliance that will jointly develop, market and license technologies for dewaxing, hydrocracking and aromatics hydrogenation. Functions of the alliance, MAK-Fining; Contributions of each companies to the alliance.

关键词： 合同   合同形式   不要式  

摘要： 此文对我国合同形式的立法、实践和市场经济对合同形式要求的演变作了简单介绍。在此基础上，从合同本质、市场经济、国际公约、ＥＤＩ技术等方面论述了我国应当在立法上确立合同形式的不要式原则，认为这是合同自由的重要体现；如果放任目前在合同实践中出现的任意对合同形式、成立程序上进行限制的现象。

关键词： MAPK   protein-protein   yeast Saccharomyces   mitogen-activated   Fus   pheromone response   MEKK   STEll   steS   interaction trap  

摘要： Ste5 is essential for the yeast mating pheromone response pathway and is thought to function as a scaffold that organizes the componentsof the mitogen-activated protein kinase (MAF K) cascade. A new method was developed to isolate missense mutations in Ste5 that differentially affect the ability of Ste5 tointeract with either of two MAPK cascade constituents, the MEKK (Stell) and the MEK (Ste7). Mutations that affect association with Ste7 or with Stell delineate discreteregions of Ste5 that are critical for each interaction. Ceimmunoprecipitationanalysis, examining the bindingin vitro of Ste5 to Stell, Ste7, Ste4 (G protein ,B subunit), and Fus3 (MAF K),confirmed that each mutation specifically affects theinteraction of Ste5 with only oneprotein. Whenexpressed in a ste5A cell, mutant Ste5 proteins that are defective in their ability to interact with either Stell or Ste7 result in a markedly reduced mating proficiency. One mutation that clearly weakened (but did not eliminate) interaction of Ste5with Ste7permitted mating at wild-type efficiency,indicating that anefficacioussignal is generated even whenSte5 associates with only a small fraction of (or only transiently with) Ste7. Ste5 mutants defective in association with Stell or Ste7 showed strong interallelic complementation when ceex- pressed, suggesting that the functional formof Ste5 in vivo is an oligomer.

关键词： identity matching   stimulus equivalence   Developmental disability   complex stimuli   computer touch screen  

摘要： This study explored whether an identity-matching-based stimulus equivalence procedure could be used to teach vowel and consonant stimulus classes to 2 adolescent females with moderate mental retardation. Delayed match-to-sample trials presented a compound sam- ple stimulus consisting of printed letters and a spoken word ( vowel or consonant ). The correct comparison stimulus matched only one of the letters in the compound sample. Subsequently, test trials assessed whether arbitrary relations had formed among the individual stimuli from each compound sample and whether stimuli from different compound samples had merged into larger stimulus classes. Both participants acquired ve-member classes of vowel and consonant stimuli, which subsequently generalized to vocal classication and to identication in the context of four-letter words. Follow-up tests showed that the generalized performances remained intact after 6 weeks. These procedures suggest an economical approach to stimulus class development.