稀土（Ln＝Eu、Nd、Er）—β二酮—二苯胍三元配合物超灵敏跃迁现象的研究

中文讨论了Ｅｕ、Ｎｄ、Ｅｒ配合物的超灵敏跃迁现象。结果表明：配合物对称性高低与超灵敏跃迁强度大小没有明显联系，而与配位健的共价性密切相关；在影响配合物光谱性质的诸因素中，电子效应尤为重要。     

用分子对称性求取分子轨道

应用分子对称性求得分子轨道,是根据分子反映面对称性质,建立了三个规则。依据对称面性质,将高阶本征行列式约化为低阶本征行列式,因此容易计算。根据这三个规则,对于具有垂直对称面的链型、环型、稠环型和混合型共轭分子,我们都得到了满意的结果。     

Interpreting the Wigner–Eckart Theorem

The Wigner–Eckart theorem is central to the application of symmetry principles throughout atomic, molecular, and nuclear physics. Nevertheless, the theorem has a puzzling feature: it is dispensable for solving problems within these domains, since elementary methods suffice. To account for the significance of the theorem, I first contrast it with an elementary approach to calculating matrix elements. Next, I consider three broad strategies for interpreting the theorem: conventionalism, fundamentalism, and conceptualism. I argue that the conventionalist framework is unnecessarily pragmatic, while the fundamentalist framework requires more ontological commitments than necessary. Conceptualism avoids both defects, accounting for the theorem’s significance in terms of how it epistemically restructures the calculation of matrix elements. Specifically, the Wigner–Eckart theorem modularizes and unifies matrix element problems, thereby changing what we need to know to solve them.     

物质世界的对称性破缺 ——2008年诺贝尔物理学奖简介

由于对基本粒子物理学中的对称性破缺问题做出了重大理论贡献,美国芝加哥大学恩里科•费米研究所的美籍日本物理学家南部阳一郎（Yoichiro Nambu）、日本筑波高能加速器研究中心的小林诚（Makoto Kobayashi）和日本京都大学汤川理论物理研究所的益川敏英（Toshihide Maskawa）被授予2008年度的诺贝尔物理学奖。本文将简要介绍他们获奖的工作,以及与之相关但尚未解决的宇宙的物质-反物质不对称难题。     

混沌Lu系统的控制与对称性研究

应用常数项控制方法对Lü系统的对称性和耗散性进行了分析,指出了存在的吸引子情况,并对控制常数m在不同情况下的平衡点以及各个平衡点处的系统稳定性进行了分析。当控制常数|m|>48时,系统能收敛到一个平衡点;当0<|m|<48时,系统不能收敛到平衡点,而是控制到对称的极限环或处于混沌状态。在Matlab数值仿真结果中验证了这一过程,它揭示了混沌产生的机制。     

Review：BRCA1/2 associated hereditary breast cancer

Breast cancer is one of the leading causes of death in women today. Some of the patients are hereditary, with a large proportion characterized by mutation in BRCAI and/or BRCA2 genes. In this review, we provide an overview of these two genes, focusing on their relationship with hereditary breast cancers. BRCA1/2 associated hereditary breast cancers have unique features that differ from the general breast cancers, including alterations in cellular molecules, pathological bases, biological behavior, and a different prevention strategy. But the outcome of BRCA1/2 associated hereditary breast cancers still remains controversial; further studies are needed to elucidate the nature of BRCA 1/2 associated hereditary breast cancers.     

遗传性非息肉病性结直肠癌6家系临床特征分析

分析通辽地区发现的遗传性非息肉病性结直肠癌（HNPCC）6个家系的临床特征,探讨本地区遗传性非息肉病性结直肠癌（HNPCC）的发病特点和预后,提供HNPCC诊断方法和治疗策略．     

模糊等价关系探讨

实际问题中构造一个模糊等价关系是比较困难的,这是传递性不易满足的缘故,而且由于＂模糊学＂形成的历史较短,所以在模糊等价关系性质方面的研究,具有局限性。文章借助普通等价关系的性质,来讨论模糊等价关系的性质。     

The making of an intrinsic property: “Symmetry heuristics” in early particle physics

Mathematical invariances, usually referred to as “symmetries”, are today often regarded as providing a privileged heuristic guideline for understanding natural phenomena, especially those of micro-physics. The rise of symmetries in particle physics has often been portrayed by physicists and philosophers as the “application” of mathematical invariances to the ordering of particle phenomena, but no historical studies exist on whether and how mathematical invariances actually played a heuristic role in shaping microphysics. Moreover, speaking of an “application” of invariances conflates the formation of concepts of new intrinsic degrees of freedom of elementary particles with the formulation of models containing invariances with respect to those degrees of freedom. I shall present here a case study from early particle physics (ca. 1930–1954) focussed on the formation of one of the earliest concepts of a new degree of freedom, baryon number, and on the emergence of the invariance today associated to it. The results of the analysis show how concept formation and “application” of mathematical invariances were distinct components of a complex historical constellation in which, beside symmetries, two further elements were essential: the idea of physically conserved quantities and that of selection rules. I shall refer to the collection of different heuristic strategies involving selection rules, invariances and conserved quantities as the “SIC-triangle” and show how different authors made use of them to interpret the wealth of new experimental data. It was only a posteriori that the successes of this hybrid “symmetry heuristics” came to be attributed exclusively to mathematical invariances and group theory, forgetting the role of selection rules and of the notion of physically conserved quantity in the emergence of new degrees of freedom and new invariances. The results of the present investigation clearly indicate that opinions on the role of symmetries in fundamental physics need to be critically reviewed in the spirit of integrated history and philosophy of science.     

二维光子晶体绝对带隙的研究

晶体中获得大的绝对带隙,可以通过降低格子对称性解除简并来实现。格子对称性的降低一般可以通过向晶体的原胞内引入不同半径的柱子的方法实现,在该方法基础上结合滑移操作,对二维正方形光子晶体结构进行了研究,发现这种联合方法用于打开绝对带隙特别有用,其相对带隙宽度约为“双柱子正方形格子”情况的2倍,同时还使绝对带隙出现的位置向低频处移动。