新时期继承和弘扬大庆精神的实践

结合大庆发展实际,全面落实和实践大庆精神,阐述和论证了大庆人对“爱国、创业、求实、奉献”的新认识,落实到大庆发展实际工作中,转化为推动大庆发展的强大动力,切实推进大庆实现科学和谐跨越发展。把“爱国”情怀体现到城市的可持续发展上,把“创业”激情体现到实现科学发展上,把“求实”精神体现到民生实事上,把“奉献”理念体现到“生态、自然、现代、宜居”的城市建设目标上。树立强烈的发展意识,推动大庆经济更好更快发展。     

企业管理创新再认识

目前国内在“企业管理创新”的概念上存在多种认识。企业管理创新应从当前企业和未来企业两个层面来思考。根据市场环境的变化 ,结合企业自身实际采用系统的、灵活的、科学的方法 ,不断降低企业成本 ,旨在追求尽可能多的超额利润及与之相适应的组织、技术、产品和市场的永无止境界的创新行为过程 ,这是当前企业创新的内涵所在 ;而未来企业的管理创新则更应着重管理效能的增高     

Robustly Collusion‐Proof Implementation

A contract with multiple agents may be susceptible to collusion. We show that agents' collusion imposes no cost in a large class of circumstances with risk neutral agents, including both uncorrelated and correlated types. In those circumstances, any payoff the principal can attain in the absence of collusion, including the second‐best level, can be attained in the presence of collusion in a way robust to many aspects of collusion behavior. The collusion‐proof implementation generalizes to a setting in which only a subset of agents may collude, provided that noncollusive agents' incentives can be protected via an ex post incentive compatible and ex post individually rational mechanism. Our collusion‐proof implementation also sheds light on the extent to which hierarchical delegation of contracts can optimally respond to collusion.     

A lower bound based smoothed quasi-Newton algorithm for group bridge penalized regression

In this paper, we propose a lower bound based smoothed quasi-Newton algorithm for computing the solution paths of the group bridge estimator in linear regression models. Our method is based on the quasi-Newton algorithm with a smoothed group bridge penalty in combination with a novel data-driven thresholding rule for the regression coefficients. This rule is derived based on a necessary KKT condition of the group bridge optimization problem. It is easy to implement and can be used to eliminate groups with zero coefficients. Thus, it reduces the dimension of the optimization problem. The proposed algorithm removes the restriction of groupwise orthogonal condition needed in coordinate descent and LARS algorithms for group variable selection. Numerical results show that the proposed algorithm outperforms the coordinate descent based algorithms in both efficiency and accuracy.     

Notes on L(1,1) and L(2,1) labelings for n-cube

Suppose \(d\) is a positive integer. An \(L(d,1)\) -labeling of a simple graph \(G=(V,E)\) is a function \(f:V\rightarrow \mathbb{N }=\{0,1,2,{\ldots }\}\) such that \(|f(u)-f(v)|\ge d\) if \(d_G(u,v)=1\) ; and \(|f(u)-f(v)|\ge 1\) if \(d_G(u,v)=2\) . The span of an \(L(d,1)\) -labeling \(f\) is the absolute difference between the maximum and minimum labels. The \(L(d,1)\) -labeling number, \(\lambda _d(G)\) , is the minimum of span over all \(L(d,1)\) -labelings of \(G\) . Whittlesey et al. proved that \(\lambda _2(Q_n)\le 2^k+2^{k-q+1}-2,\) where \(n\le 2^k-q\) and \(1\le q\le k+1\) . As a consequence, \(\lambda _2(Q_n)\le 2n\) for \(n\ge 3\) . In particular, \(\lambda _2(Q_{2^k-k-1})\le 2^k-1\) . In this paper, we provide an elementary proof of this bound. Also, we study the \(L(1,1)\) -labeling number of \(Q_n\) . A lower bound on \(\lambda _1(Q_n)\) are provided and \(\lambda _1(Q_{2^k-1})\) are determined.     

Effects of Track and Threat Information on Judgments of Hurricane Strike Probability

Although evacuation is one of the best strategies for protecting citizens from hurricane threat, the ways that local elected officials use hurricane data in deciding whether to issue hurricane evacuation orders is not well understood. To begin to address this problem, we examined the effects of hurricane track and intensity information in a laboratory setting where participants judged the probability that hypothetical hurricanes with a constant bearing (i.e., straight line forecast track) would make landfall in each of eight 45 degree sectors around the Gulf of Mexico. The results from 162 participants in a student sample showed that the judged strike probability distributions over the eight sectors within each scenario were, unsurprisingly, unimodal and centered on the sector toward which the forecast track pointed. More significantly, although strike probability judgments for the sector in the direction of the forecast track were generally higher than the corresponding judgments for the other sectors, the latter were not zero. Most significantly, there were no appreciable differences in the patterns of strike probability judgments for hurricane tracks represented by a forecast track only, an uncertainty cone only, or forecast track with an uncertainty cone—a result consistent with a recent survey of coastal residents threatened by Hurricane Charley. The study results suggest that people are able to correctly process basic information about hurricane tracks but they do make some errors. More research is needed to understand the sources of these errors and to identify better methods of displaying uncertainty about hurricane parameters.     

Postnatal breastfeeding education at one week after childbirth: What are the effects?

Background

The first week after childbirth is a crucial period for exclusive breastfeeding initiation.

机制与制度创新视域下的辽宁沿海城市带网络化发展

在振兴东北总体战略的引领下,辽宁沿海经济带和沈阳经济区的开发建设在2009年和2010年相继由省级发展战略上升为国家发展战略,这一战略的实施为辽宁发展成为我国新的区域经济增长极发挥了强有力的推动作用。     

科学发展观与党的执政能力建设

党的十六届三中全会、四中全会分别提出了科学发展观和加强党的执政能力建设,源于全面建设小康社会的实践,又相互作用共同推进全面建设小康社会的进程。科学发展观念的转变和创新,客观要求改革和完善相应的领导方式和执政方式,提高领导干部的执政素质,加强党的执政能力建设;而领导干部执政能力和执政水平的提高,也必将促使其发展观念的根本转变。在科学发展观的落实和推进全面建设小康社会实践的进程中,也进一步丰富和发展了党的执政理论的基本内涵,在理论层次上,提升了党的执政水平和执政能力,为加强党的执政能力建设提供了理论依据。在现实层面上,突出坚持统筹兼顾、协调发展,着力解决突出矛盾,注重加强薄弱环节,落实科学发展观,把加强党的执政能力建设落到实处。     

荀子"性向恶论"考辨

荀子的人性论,不是性本恶论,而是性向恶论.这与孟子的性向善论正相对应.孟子荀子的人性论都是基于孔子的人性论的展开.而孔子的性相近说强调的是性的非善非恶,性的善恶则是就后天的积习修为上说.孟子荀子的或狂或狷的人格特征制约着向善向恶的人性判断的不同选择.而人性无论向善还是向恶都不妨碍可以通过后天的存养或矫饰使人性得以完善.《荀子·性恶》篇的具体论述表明其所谓性恶是性向恶而非性本恶.荀子的性恶伪善说与韩非自利自为的性本恶论不同,荀子的性向恶论并未得出人性不可改变的消极结论.