On the performances of Nash equilibria in isolation games

We study the performances of Nash equilibria in isolation games, a class of competitive location games recently introduced in Zhao et al. (Proc. of the 19th International Symposium on Algorithms and Computation (ISAAC), pp. 148–159, 2008). For all the cases in which the existence of Nash equilibria has been shown, we give tight or asymptotically tight bounds on the prices of anarchy and stability under the two classical social functions mostly investigated in the scientific literature, namely, the minimum utility per player and the sum of the players’ utilities. Moreover, we prove that the convergence to Nash equilibria is not guaranteed in some of the not yet analyzed cases.     

Quantile hidden semi-Markov models for multivariate time series

Statistics and Computing - Parametric regression, such as linear regression, plays an important role in statistics. The use of parametric regression models typically involves the specification of a...     

You Just Have to Ask Coproduction of Primary Healthcare in Ghana and Nigeria

Public Organization Review - The urgent need to improve the quality of healthcare provision in developing countries such as Nigeria and Ghana is caused in part by inadequate financial support for...     

分批整经机性能研究和改进设想

本文对影响整经机质量的几个方面提出改进设想，从理论上进行分析，并通过实践使改进取得了良好的效果。     

Combining genotype groups and recursive partitioning: an application to human immunodeficiency virus type 1 genetics data

Summary.  Understanding the relationship between human immunodeficiency virus type 1 genotypic markers of resistance and response to therapy presents an analytic challenge because of the high dimensionality of the viral genome and the complex interactions across sites on the genome. Recursive partitioning is a natural approach to classifying patients on the basis of covariates that capture information on the variability of a response variable and is therefore well suited to handling both of these features of the problem. In the human immunodeficiency virus genetics setting, we aim to classify patients on the basis of the genotypic characteristics of their infecting viral population so that the resulting groups explain the most variability in drug susceptibility phenotype. Recursive partitioning is also informative in identifying meaningful genotypic patterns that define the resulting classes. By combining dimension reduction techniques with recursive partitioning we can arrive at different classification schemes which are potentially more informative. Furthermore, the use of weighted distance metrics in the clustering algorithm allows us to update and potentially to improve on this classification scheme. An illustration of the relative benefits of the various approaches is provided by using 2559 protease sequences and the corresponding 50% inhibitory concentrations for Indinavir.     

试论听党指挥道德规范的形成、内涵和实践途径

我军从诞生之日起 ,党中央就明确提出军队“行动听指挥”的原则 ,在党的领导和教育下 ,我军广大官兵同各种否认党的领导的错误思想进行了长期坚决的斗争 ,树立起“听党指挥”的道德规范 ;革命军人“听党指挥”的道德规范具有科学的内涵 ,当前坚持这一规范 ,是确保国家稳定与发展的需要 ,是打赢高技术条件下局部战争的需要 ,是确保我军永不变质的需要 ;革命军人“听党指挥”道德规范的实践途径是 :掌握科学的理论 ,坚持党领导军队的制度 ,加强军人的组织观念 ,与违背党的领导的错误言行作坚决斗争