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Copyright of Acta Petrologica et Mineralogica / Yanshi Kuangwuxue Zazhi is the property of Acta Petrologica et Mineralogica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Condiment is the property of China Condiment and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The stability of the arch dam shoulder is an important element in the analysis of the safety and stability of arch dams. The classical calculation method of arch dam shoulder slip resistance needs to assume the bottom sliding surface of the dam shoulder slider and ignore the influence of the fault and fracture joint group in the rock body of the dam shoulder on its shoulder slip resistance stability. In order to take into account the influence of faults and fracture joint groups to the rock mass, this paper used genetic algorithm to search for the critical sliding surface of the dam shoulder anti-slip based on the time course analysis method and analyzed the change of vibration intensity anywhere on the critical sliding surface of the dam shoulder slider. The slip resistance of the concrete arch dam shoulder was investigated in terms of sensitivity to shear strength parameters and ground vibration. The study result shows that the friction coefficient of the structural surface has less influence to the slip resistance stability of the dam shoulder, while the slip resistance stability performance of the dam shoulder is most sensitive to the cohesive force on the rock bridge, and the influence of cohesive force to the slip resistance stability performance is stronger than that of the friction coefficient, and the influence of ground vibration to the slip resistance stability performance of the arch dam shoulder is weaker. [ABSTRACT FROM AUTHOR]

Copyright of Feed Research is the property of Editorial Board of Feed Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The early spread of Chinese tea in Europe was mainly carried out through tea activities in the exploration of the East by multiple subjects such as navigators, missionaries, businessmen, doctors, botanists and nobles. In general, it showed the historical route of smelling, drinking and recognizing tea, of which people’s impression of tea mainly originated from the literature transmission of various travel notes and the imagination of oral transmission. There was once a cognitive bias and misreading of the sanctification and stigmatization of tea, and tea became the symbolic intention for the imagination of the East and collective memory. With the introduction of tea products into Europe, the elite class played a leading role in forming the fashion of tea consumption and the public demand for tea based on physical concerns was growing. As foreign countries have deepened their cognitive needs of Chinese tea, the misreading of tea as a type of foreign culture has gradually been clarified, and has been localized in tea botany, medicine, chemistry and other aspects. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Data Acquisition & Processing / Shu Ju Cai Ji Yu Chu Li is the property of Editorial Department of Journal of Nanjing University of Aeronautics & Astronautics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Data Acquisition & Processing / Shu Ju Cai Ji Yu Chu Li is the property of Editorial Department of Journal of Nanjing University of Aeronautics & Astronautics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

0bjective To study the inhibition effect of Osterix specific small interfering RNA(siRNA)on Osterix gene expression in bone marrow mesenchymal stem cells，and to screen the most efficient Osterix specific siRNA．Methods According to the principle of siRNA design，Osterix specific siRNA(1-3)was designed and the bone marrow mesenchymal stem cells were transfected．The expression of Osterix gene was detected using real-time quantitative PCR and Western blotting．Results Endogenous Osterix expression was efficiently blocked in bone marrow mesenchymal stem cells by Osterix siRNA··2 in a dose··and time-dependent manner．Osterix expression decreased significantly along with the increase of siRNA一2 dose within 50-200 nmol／L and it was the lowest at 48h after transfection with 200nmol／L of siRNA一2(P<0．05)．Conclusion The expression of Osterix in bone marrow mesenchymal stem cells can be blocked efficiently in a dose and time dependent manner by specific siRNA． [ABSTRACT FROM AUTHOR]

Copyright of Chinese Studies / Hanxue Yanjiu is the property of Center for Chinese Studies/National Central Library and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)