磁疗治疗足跟骨刺痛120例

足跟痛患者120例,采用电磁治疗机,足跟痛区治疗。完全缓解46例,显效38例,好转25例,无效11例,有效率91%。     

How does hydroxyl introduction influence the double helical structure: the stabilization of an altritol nucleic acid:ribonucleic acid duplex

Altritol nucleic acids (ANAs) are a promising new tool in the development of artificial small interfering ribonucleic acids (siRNAs) for therapeutical applications. To mimic the siRNA:messenger RNA (mRNA) interactions, the crystal structure of the ANA:RNA construct a(CCGUAAUGCC-P):r(GGCAUUACGG) was determined to 1.96?? resolution which revealed the hybrid to form an A-type helix. As this A-form is a major requirement in the RNAi process, this crystal structure confirms the potential of altritol-modified siRNAs. Moreover, in the ANA strands, a new type of intrastrand interactions was found between the O2' hydroxyl group of one residue and the sugar ring O4' atom of the next residue. These interactions were further investigated by quantum chemical methods. Besides hydration effects, these intrastrand hydrogen bonds may also contribute to the stability of ANA:RNA duplexes.     

益寿食品——芝麻

芝麻（Ｓｅｓａｍｕｍｉｎｄｉｃｕｍ）,俗称胡麻、脂麻（因含脂肪较多）、油麻等。属胡麻科胡麻属植物。芝麻原产非洲和热带亚洲,现广植于各热带和温带地区;汉代张骞出使西域,把芝麻带回我国,现我国各地也广泛种植,资源十分丰富。芝麻因其种子色泽不同,可分为黑芝麻和白?..     

揭秘北京王府井古人类的生活活动

北京是著名的历史文化名城，有着悠久的历史。现在它已成为国际化的大都市，是人们向往的著名观光旅游城市。王府井大街是“中国第一街”，也是观光客到北京的必游之地。经过改造，如今这条街已是充满现代气息、高品位、高标准的国际化中心商业街。