日本克隆化小鼠穿孔蛋白的cDNA成功

日本顺天堂大学医学部免疫学教授奥村康和真贝洋一、理化学研究所国际研究新领域系统研究员泷尾扩士等合作,首次在世界上精制了 T 杀伤细胞和天然杀伤细胞担负杀伤靶细胞任务的穿孔蛋白(或穿孔素,Perforin),并以此成果为基础,克隆了 cDNA。这项研究是与住友电工公司共同进行的。已由公司申请了专利。这项成果除已在《Na-

甘肃西峰市出土的西周陶贝

甘肃庆阳地区博物馆陈列钱币展览时,清理了本馆收藏的1979年西峰市火巷殡葬馆工地发现的西周墓葬中出土的陶贝,并对其逐个进行了实测和对比,发现与骨贝、石贝、蚌贝的形制、用途相类似。

The applications of Bayesian models in real-world studies of traditional Chinese medicine:a primer

Real-world study is valuable for traditional Chinese medicine.However,there are no gold standards of statistical approaches for analyzing data from real-world study of traditional Chinese medicine.With the development of computer technology,researchers have increasingly paid attention to Bayesian statistics in the biomedical field.In present study,real-world study and Bayesian statistics were introduced.It was discussed that why and when to use Bayesian analysis and the challenge in the real-world study of traditional Chinese medicine.

Description of Evaporation Curve by the Generalized Van-der-Waals-Berthelot Equation. Part I

The evaporation curve is calculated for the Van-der-Waals and Berthelot gases. It was shown that the evaporation curve of real gases resides between those of Van-der-Waals and Berthelot gases. The generalized Van-der-Waals-Berthelot equation is suggested, which not only qualitatively but also quantitatively describes evaporation curves of real gases. It was also shown that the generalized Van-der-Waals and Berthelot equation well describes other characteristics of real gases.

Vacuum-Induced Abelian and Non-Abelian Gauge Potentials in Cavity Quantum Electrodynamics

Gauge potential plays an important role in exploring exotic phenomena in the single- and many-body quantum systems.In this paper,we propose a scheme to create both new Abelian and non-Abelian gauge potentials by adiabatically controlling the degenerate Dicke model in cavity quantum electrodynamics.It is shown that a non-Abelian gauge potential is achieved only for a single atom,whereas an Abelianizen diagonal gauge potential is realized for the atomic ensemble.More importantly,two interesting quantum phenomena such as the geometric phase and the magnetic monopole induced by our created gauge potentials are also predicted.The possible physical realization is presented in the macroscopic circuit quantum electrodynamics with the Cooper pair boxes,which act as the artificial two-level atoms controlled by the gate voltage and the external magnetic flux.

墓葬等级分析中一种量化方法的思考——以大甸子墓地为例

墓葬分析是考古学研究中一项重要的内容,而关于墓葬等级的研究又是墓葬分析中的一个重点。墓葬等级反映在其本身的建造所花费的劳力和随葬品的质与量上,这些墓葬资料是有形的和可以度量的,但大多数墓葬分析多停留在"定性分析"的阶段。但正如著名考古学家C·伦福儒所说:"不计量的日子已经指日可计了。"定性研究的文字阐释往往没有统计数据直观而有说服力,因此,墓葬分析,尤其是墓葬等级的研究,必须要引入定量分析方法。西方学者很早就开始将定量分析方法运用到墓葬分析中。