建设工程招标文件编制技巧

招标文件是投标人编制投标文件的重要依据,在整个招投标过程中起着至关重要的作用,一份规范的、高质量的招标文件是取得招投标工作成功的关键。因此,掌握建设工程招标文件编制技巧就显得尤为重要。     

Den egna vägen: Sverige och den europeiska integrationen 1961–1971

Abstract

The use of armaments, diplomacy and economic pressure to intervene in the functioning of an enemy economy has been one of the most disputed concepts of warfare in the twentieth century. In the war against Germany after 1939 so called ‘economic warfare’ proved on the whole a poor investment of Allied resources with the notable exception of the bombing raids on synthetic oil factories. By contrast it was eminently successful in the campaigns against Japan. One obvious reason for the difference is that Japan was an island power against which the traditional techniques of naval blockade were effective whereas Germany by her territorial conquests on the continent was able greatly to extend her control over economic resources despite the blockade. But there were other reasons for the relative failure of ‘economic warfare’ against Germany and these, like the results of conquest, are central to these two works. One was that the complexity of the German economy in its international setting, combined with the difficulty of obtaining accurate economic information about an enemy economy during a war, meant that there was in reality no method of selecting with an accuracy sufficient to justify the deployment of large resources a link in the chain of production so weak that it could be destroyed. Secondly, a lurking suspicion that this might be so caused rapid changes in strategy, so that when weak links were identified the targets were seldom attacked for long enough for the strategy to succeed. Thirdly, the weapons and techniques of intervention in an enemy economy were seldom perfect enough to achieve their ambitious purpose. And finally German foreign trade even in strategic commodities survived because it was also in the interests of neutrals, and even in those of the Allies where their own economic relationship with the neutrals was concerned, that it should.     

Healthcare utilization changes in relation to treatment intensification with insulin aspart in patients with type 2 diabetes. Data from a large US managed-care organization

ABSTRACT

Objective: Most patients with type 2 diabetes eventually require exogenous insulin therapy to achieve good glycemic control due to the progressive nature of the disease. Insulin aspart is a rapid-acting insulin analog developed for prandial use. This study aimed to illustrate the implications on healthcare costs of adding insulin aspart to basal therapy in a real-world setting.

Methods: Patients with type 2 diabetes who intensified previous basal therapy with insulin aspart were identified from a large commercial US healthcare data source between April 2007 and September 2008. Patients were required to have received basal insulin treatment with or without concomitant oral antidiabetic (OAD) therapy for at least 90 days pre- and post-initiation of insulin aspart. Wilcoxon signed-rank test and McNemar's test were used for continuous and categorical variables, respectively, to analyze the difference of self-comparison between pre- and post insulin aspart add-on.

Results: In total, 1,739 patients with an average age of 56 years were identified, of whom 55% were male. After initiation of insulin aspart, a significant improvement in glycemic control was observed (change in HbA_1c: –0.5%, p=0.0013). Similarly, a reduction of 0.4% in HbA_1c was observed for the subpopulation of 151 patients, who had both pre-and post-index HbA_1c data (p=0.0085). Also, significantly fewer patients used OADs after insulin aspart initiation (56 vs. 64%, p< 0.0001). Overall and diabetes-related healthcare costs also significantly decreased by $2,283 and $2,028, respectively (p≤0.0001). Diabetes-related inpatient visits appear to be the main contributor to total cost (46%); however, after initiation of insulin aspart the number of inpatient visits decreased by 0.50 visits/patient/year (p< 0.05). This decrease was reflected in a large reduction in cost related to inpatient visits ($3,019/patient).

Limitations: A regression to the mean effect may be associated with this pre-post comparison. The ability to make conclusions regarding cause and effect may be limited due to the retrospective design of this study.

Conclusions: Patients with type 2 diabetes achieved better glycemic control and needed less OAD treatment after adding insulin aspart to previous basal therapy. Furthermore, patients experienced on average reduced healthcare utilization after initiation of insulin aspart, which resulted in significant cost savings.     

浅谈多媒体数据库实现技术

随着信息科学技术的飞速发展,多媒体数据库(Multimedia Data-base,MDB)技术已经成为信息处理领域的研究热点。多媒体数据库能够提高信息处理能力,为解决多媒体数据资源提供了有力保障。本文分析研究了多媒体数据库的层次结构,介绍了多媒体数据库的几种常见应用实例,给出了多媒体数据库实现的关键技术。     

基于JSP的人力资源培训系统设计与实现

本文论述了使用JSP技术来构建人力资源培训系统的方法和设计过程,对人力资源系统的需求和设计进行了深入分析和阐述。同时对所遇到的主要技术问题进行了具体探讨,并最终给出了相应解决方案。     

Applying XBRL in an Accounting Information System Design Using the REA Approach: An Instructional Case*

The Church in Somewhere (CIS) is a small community church which uses an Excel spreadsheet to keep its financial records. The church administrator is considering moving from a spreadsheet accounting system to a relational database system that can easily be expanded to include more information in the future. In this paper we examine the transforming process in this hypothetical case by following a resource‐event‐agent (REA) modeling paradigm to create a database. We then link the REA model to financial reporting using Microsoft Access. In addition, using the financial report in the database, students prepare and validate an eXtensible Business Reporting Language (XBRL) document for CIS. Instead of applying the complex U.S. Generally Accepted Accounting Principles (GAAP) Taxonomies, Release 2009 , the case uses a dedicated CIS Taxonomy to complete the mapping and tagging processes.     

数据库结构设计优化方法初探

文章首先阐述数据库设计在系统开发中的地位与作用,然后根据数据库设计流程分析数据库设计优化的重要步骤,最后结合数据库系统原理与实际数据库系统开发经验阐述数据库设计优化的关键步骤和方法。     

Artificial Intelligence in Managing Market Relationships

Abstract

In the 21st century our society is increasingly defined by access to and fluency with digital technologies and information infrastructures which are described to be essential to economic development, global competitiveness and national productivity (Merril Lynch & Co. Inc., 2000). This paper presents a theoretical framework for the development of a new intelligent software system designed to integrate loyalty programs data bases information, consumer surveys and qualitative studies what will enable the producing firm to be in contact with consumers' behavioural and attitudinal patterns. The benefit of this theoretical model is its assistance to consumer goods-producing firms to establish information-based relationships with both the end customer-user and the retailers that distribute the goods.     

基于资源价格库的制造产品报价系统关键技术研究

针对传统制造企业只凭经验报价的缺点,提出了基于资源价格库的产品报价系统。首先,论述了建立企业标准化零部件库和资源价格库的基本思路;然后,提出了基于资源价格库的产品报价模型,并用实例对该报价系统的运用加以说明。     

Semiparametric quantile averaging in the presence of high-dimensional predictors

The paper proposes a method for forecasting conditional quantiles. In practice, one often does not know the “true” structure of the underlying conditional quantile function, and in addition, we may have a large number of predictors. Focusing on such cases, we introduce a flexible and practical framework based on penalized high-dimensional quantile averaging. In addition to prediction, we show that the proposed method can also serve as a predictor selector. We conduct extensive simulation experiments to asses its prediction and variable selection performances for nonlinear and linear time series model designs. In terms of predictor selection, the approach tends to select the true set of predictors with minimal false positives. With respect to prediction accuracy, the method competes well even with the benchmark/oracle methods that know one or more aspects of the underlying quantile regression model. We further illustrate the merit of the proposed method by providing an application to the out-of-sample forecasting of U.S. core inflation using a large set of monthly macroeconomic variables based on FRED-MD database. The application offers several empirical findings.