音乐的结构及其数字人类学根据

音乐作为一种纯粹的文化制度,有其固有的结构和强加的结构。音乐结构原理的应用有力地说明,音乐有其明确规定的数字人类学根据。     

左半正则B-拟-Ehresmann半群

良B-拟-Ehresmann半群是幂等元子带B满足一些条件的半群,其中B被称为投射带。纯整半群、型W半群、纯整超rpp半群和投射纯整幺半群都是良B-拟-Ehresmann半群。本文刻画了投射带是左半正则带的良B-拟-Ehresmann半群。     

现代正则量子广义相对论

本书为剑桥大学出版社出版的《剑桥数学物理专著》系列丛书中的一卷。本书细致并且严谨的阐述了现代正则量子引力（或圈量子引力）的数学结构和物理应用。     

诗歌、歌曲和舞蹈的数字人类学根据及其美学意义

诗歌、歌曲和舞蹈作为交流的工具,超越了音乐的诸多限制。它们在传达某种信息上所需要的那种转换,实质上是以数字来表示的。本文所介绍的诗歌、歌曲和舞蹈的数字原则的应用,极好地说明了它们有着明确规定的数字人类学根据以及美学意义。     

Involvement of mitogen-activated protein kinases and p21Waf1 in hydroxyurea-induced G1 arrest and senescence of McA-RH7777 rat hepatoma cell line

Hydroxyurea is commonly used to treat hematologic disorders and some type of solid tumors, but the mechanism for its therapeutic effect is not clearly known. In this study, we examined the effect of hydroxyurea on rat hepatoma McA-RH7777 cells, specifically, on the role of mitogen-activated protein (MAP) kinase signal transduction pathways and p21(Waf1), p27(Kip1) and p53. Rat hepatoma McA-RH7777 cells treated with hydroxyurea for 7 days, caused the inhibition of cell growth in a dose-dependent manner. But, this growth inhibition was not caused by necrosis or apoptosis but instead was associated with cell senescence-like change as evidenced by senescence associated-beta-galactosidase staining, and cells arrest at G1 phase of cell cycle. Phosphorylation of MAP kinases, such as ERK, JNK, and p38, was found to be decreased after treatment of cells with hydroxyurea. But, the expression of p21(Waf1) was increased, while p27(Kip1) and p53 were not detected in hydroxyurea treated rat hepatoma cells. Hydroxyurea treatment induced G1 arrest and a senescence-like changes in rat hepatoma McA-RH7777 cells may be the likely results of signal disruption of MAP kinases (ERK, JNK, and p38 MAP kinase) and p21(Waf1) over-expression.     

化学和湿度传感器用聚合物膜的制备方法

使用紫外辐射溶液聚合方法研究了化学／湿度传感器用聚合物膜的制备方法．本方法制备的膜厚度在5～100μm区间可控,信号响应好,可重复．     

Experimental earth tidal models in considering nearly diurnal free wobble of the Earth''''s liquid core

Based on the 28 series of the high precision and high minute sampling tidal gravity observations at 20 stations in Global Geodynamics Project (GGP) network, the resonant parameters of the Earth's nearly diurnal free wobble (including the eigenperiods, resonant strengths and quality factots) are precisely determined. The discrepancy of the eigenperiod between observed and theoretical values is studied, the important conclusion that the real dynamic ellipticity of the liquid core is about 5% larger than the one under the static equilibrium assumption is approved by using our gravity technique. The experimental Earth's tidal gravity models with considering the nearly diurnal free wobble of the Earth's liquid core are constructed in this study. The numerical results show that the difference among three experimental models is less than 0.1%, and the largest discrepancy compared to those widely used nowdays given by Dehant (1999) and Mathews (2001) is only about 0.4%. It can provide with the most recent real     

Neutron Diffraction Study on Structure of α－LiIO_3 Single Crystal under DC Voltage

ＮｅｕｔｒｏｎＤｉｆｆｒａｃｔｉｏｎＳｔｕｄｙｏｎＳｔｒｕｃｔｕｒｅｏｆα－ＬｉＩＯ_３ＳｉｎｇｌｅＣｒｙｓｔａｌｕｎｄｅｒＤＣＶｏｌｔａｇｅＣｈｅｎｇＹｕ－Ｆｅｎ；ＹａｎｇＺｈｅｎ；ＣｈｅｎｇＺｈｉ－Ｘｕ；ＧｕｏＬｉ－Ｐｉｎｇ（ＣｈｉｎａＩｎｓｔｉ?..     

谱学的早期历史

谱学的早期历史托马斯原著（奥本蒙哥马利大学蒙哥马利亚拉巴马３６１１７）武克忠译（河北师范大学化学系石家庄市０５００１６）张建军校（河北师范大学实验中心石家庄市０５００１６）张延安复校（核工业北京地质研究院北京市１０００２９）所有化学工作者对于可见光谱...     

对纽约的爱与恨

本文译自张汉熙主编《高级英语》第二册最后一课。个人在讲授本课书中见过吉林大学外文系译文,多处确给人有益启发,值得学习,但全篇看来总觉该译文实难很好地为我教学所用。为了较有效地借助汉译让学生尽可能深切理解和正确把握原文,个人重译了这篇课文。另外,本译文最后四段基本上用了《高级英语》教师用书给“课文段落汉译”练习的答案,唯多处与答案译文亦不尽相同;这里多处作了个人对原文粗浅理解的译文处理。限于个人水平,又复资料短缺,自信本译文一定不无多处差错或不当之处,敬希诸老师并读者批评、指正。