花灯传奇

秀山花灯,起于唐,兴于宋,上千年的历史渊源,使秀山花灯在流传过程中,在得天独厚的生态土壤里,显示出一种民俗民间艺术的魅力。秀山花灯是重庆“十大民间艺术之一”。秀山土家族苗族自治县被文化部命名为“全国民间艺术之乡”。     

建立计算机管理系统 提高机车检修质量

山海关机务段针对传统质量管理手段和机车检修方法存在管理方法落后、检测手段落后和考核机制滞后等弊端,建立机车检修质量计算机管理系统。该系统具有收集处理检修质量信息,提供质量分析、定责、考核依据,强化配件检修质量及检修质量控制等功能,促进了机车质量稳步提高,为旅客列车安全正点运行提供了有力保障,为运输畅通和增运增收发挥了重要作用。     

跆拳"武"动的春天

他们外表看似冷静,内心却充满激情。穿上帅气的道服,不管什么职业,什么性别、什么年龄的你,身上所有的社会符号都将消失,只有一个纯粹的、神采奕奕的你,传递出一种精神……     

迷上酒吧的理由

有人比喻酒吧是水泥城市的天窗，“人们迫不及待地探出头，试图逃脱逼仄的空间，哪怕得到片刻的欢娱。”而在成都，在迷上——一个酒吧，富有想象力的名字将欢娱变成了前戏：人们夜夜笙歌，长久缠绵悱恻。[编者按]     

做好现代农业富裕农民的大文章——兼议农家小院功能分区问题

四川省井研县的经验表明，农民是可以靠现代农业致富的，出路就在于实行农产品生产的标准化、农民的组织化、农业产业化、大力发展畜牧、水产养殖等高效的大农业，让农民分享农产品加工和流通环节的利益。本文还对农家小院功能分区问题提出了建议。     

优化银行会计管理的策略思考

目前银行会计管理工作中存在诸多问题,应分析其成因,并采取相应措施,例如完善会计核算制度、规范会计基础工作、建立集中统一的会计管理体制、建立健全会计监督制度等加以解决.     

Improved estimation of portfolio value‐at‐risk under copula models with mixed marginals

Portfolio value‐at‐risk (PVAR) is widely used in practice, but recent criticisms have focused on risks arising from biased PVAR estimates due to model specification errors and other problems. The PVAR estimation method proposed in this article combines generalized Pareto distribution tails with the empirical density function to model the marginal distributions for each asset in the portfolio, and a copula model is used to form a joint distribution from the fitted marginals. The copula–mixed distribution (CMX) approach converges in probability to the true marginal return distribution but is based on weaker assumptions that may be appropriate for the returns data found in practice. CMX is used to estimate the joint distribution of log returns for the Taiwan Stock Exchange (TSE) index and the associated futures contracts on SGX and TAIFEX. The PVAR estimates for various hedge portfolios are computed from the fitted CMX model, and backtesting diagnostics indicate that CMX outperforms the alternative PVAR estimators. © 2006 Wiley Periodicals, Inc. Jrl Fut Mark 26:997–1018, 2006     

贯彻钢铁产业政策走科学发展之路

时光荏苒，钢铁行业不知不觉又沐浴在2006年的春光之中。从2004年以来国家陆续出台宏观调控政策，到2006年年初的平衡过渡，钢铁行业跨越了由风声鹤唳到有惊无险的历程。     

Continuous extension of preferences

We consider the problem of extending preferences from a subset of a commodity space to the entire space. It is a simple consequence of the Tietze extension theorem that continuous preferences can be extended if they are defined on closed subsets of a normal space and are representable by utility functions. We show the following: If the space is a non-separable metric space, then extension of preferences is not always possible. In fact for (path-connected) metric spaces, extension property, utility representation property, and separability are equivalent to each other.