高校践行代表先进文化的要求之我见

高等院校作为党领导下的传承知识、智慧和文明的园地 ,在践行代表先进文化方面责任重大。高校必须大力弘扬科学精神 ,推进社会主义精神文明建设 ;培养学生的创新精神 ;加强高校的理论研究 ,增强针对性和可行性 ,推进科教兴国。     

把地勘单位推向市场的深层次思考

把地勘单位推向市场是地勘业体制改革的必然选择。只有把地勘单位全面推入商品市场、要素市场、特别是产权交易市场,才能从根本上解决地勘单位营运的激励机制和约束机制。把地勘单位推向市场的实质是把地勘单位塑造为具有“四自”能力的市场主体。为此,必须全面转换地勘单位的经营机制,逐步割断其对国家的依赖关系,使其自主选择市场,立足市场。要进一步深化改革目前不彻底、不完善的两权分离,从不对称性两权分离状态走向对称性两权分离状态。     

吉林海沟金矿床金属矿物的主要特征

海沟矿床是一个大型金矿床。含金石英脉分布于燕山期二长花岗岩体中,金属矿物的研究表明,矿物以自然金、硫化物(黄铁矿、方铅矿、黄铜矿)为主,伴有少量铀矿物(晶质铀矿、沥青铀矿)及碲化物(碲铅矿、碲金矿)。主要的矿物组合为自然金—石英、自然金—硫化物、石英—方解石,它们分别代表不同成矿阶段,金的最大富集发生于自然金一硫化物阶段,金属矿物的某些特征为矿床成因提供了重要信息,它表明矿床成因上不仅与燕山朔岩浆活动有关,而且也与构造—变质期形成的矿源层有关。     

On the conceptualization of theoretical constructs

An attempt is made to bridge the gap between the theorists and modellists approaches to the conceptualization of theoretical constructs. The former approach assumes that every theoretical construct has a surplus meaning over and above its operationalization and measurement as a concept. The latter approach denies this: it only accepts theoretical constructs as functions of relations between observations, i.e. measured concepts.This gap can be bridged by explicating the definition of a theoretical construct before making attempts to operationalize and measure it. An explicated definition should cover all relevant aspects (or: facets) of a construct, systematically brought together in an ideal type model. On this basis, operationalization of the construct can be directly linked to model elements, so that any possibly remaining surplus value is made explicit. The distance between theoretical construct and the measured concept can then be made as small as seems feasible; in principle, the distance can be made zero. The manner in which conservative ideology is conceptualized in a longitudinal research project in the Dutch electorate is presented as an example of this strategy.     

An extension of mixed estimation,with an application to forecasting new product growth

This paper extends the mixed estimation technique to handle a case in which the coefficients of a set of linear constraints are known nonlinear functions of an unknown parameter vector for which an extraneous unbiased estimate is available. This novel form of the mixed estimation technique is illustrated by applying it to the Bass innovation/diffusion model of new product growth. It is suggested that this is superior to the traditional method whereby managerial intuition is incorporated into this type of model, and is an attractive alternative to recently-suggested Bayesian methods.I thank an anonymous referee for helpful comments and references.     

Central sterile supply productivity and time study analysis

As a result of the productivity study in both areas, the following objectives can be attained: Ascertain the number of FTEs necessary for staffing requirements. Determine the efficiency level in daily production of trays and sets. Develop standards to measure the overall effectiveness in delivering service. Although this represents a quantitative analysis of the productivity within a CSS department, it is important not to forget the human element in the relationship between CSS and OR employees.