基于BIM技术的绿色工程解决方案研究

建筑业资源消耗量巨大,发展绿色工程迫在眉睫,但基于现有技术实现绿色工程存在不少困难。探索将BIM技术运用到工程项目中,实现工程绿色化。介绍了绿色工程的概念,分析了BIM应用现状,以成都市南城都汇六期汇彩园商业及住宅项目BIM实践为例,从BIM策划、投标报价策略分析、管综优化、限额领料等方面进行剖析和论证,阐述了BIM应用于绿色工程的实践效果。     

集群中核心企业网络权力对配套企业合作行为的影响

网络权力是企业网络中的热点问题之一。探讨了在中国集群情境下,核心企业网络权力对与之合作的配套企业合作行为的影响,同时引入关系资本,探究其调节效应。运用理论与实证研究方法,基于对238份企业调查数据的分析,研究得出：核心企业知识权力、地位权力及感召权力均与配套企业合作行为正相关;此外,关系资本正向调节核心企业网络权力与配套企业合作行为之间的关系。     

Shapley and Scarf housing markets with consumption externalities

We introduce externalities into the classical model by Shapley and Scarf; that is, agents care about others and their preferences are defined over allocations rather than over single indivisible goods. After collecting some results about the nonexistence of several cooperative solutions, we focus on stable allocations and propose domains of preferences that can guarantee that they both exist and form a stable set à la von Neumann and Morgenstern.     

西部开发与企业家精神

西部开发给新一代的大学生提供了广阔的发展空间，大学生到西部创业体现了我国当代大学生具有了一定的企业家精神，西部开发给我们提供了培养我国具有冒险精神的企业家的沃土，但大学生到西部创业并不是一帆风顺的，他们必须具有一定的素质条件，才有可能在西部开发的大环境中有所作为。     

Information and Investor Behavior Surrounding Earnings Announcements

The goal of this paper is to analyze the impact of annual earnings announcements on the market through the order flow data in addition to the usual transaction data. In this respect, examining order flow data can potentially reveal valuable information that is not available from transaction data. In fact, the data allow us to test hypotheses about asymmetric information and investor behavior and to test if the behavior varies with investor sophistication. In addition, the paper tries to identify the determinants of the impact on a firm's value using assumptions about investor behavior.     

Length of stay and economic consequences with rivaroxaban vs enoxaparin/vitamin K antagonist in patients with DVT and PE: findings from the North American EINSTEIN clinical trial program

Objective:

Venous thromboembolism (VTE) (deep vein thrombosis [DVT] and pulmonary embolism [(PE]) represents a substantial economic burden to the healthcare system. Using data from the randomized EINSTEIN DVT and PE trials, this North American sub-group analysis investigated the potential of rivaroxaban to reduce the length of initial hospitalization in patients with acute symptomatic DVT or PE.

Methods:

A post-hoc analysis of hospitalization and length-of-stay (LOS) data was conducted in the North American sub-set of patients from the randomized, open-label EINSTEIN trial program. Patients received either rivaroxaban (15?mg twice daily for 3 weeks followed by 20?mg once daily; n?=?405) or dose-adjusted subcutaneous enoxaparin overlapping with (guideline-recommended ‘bridging’ therapy) and followed by a vitamin K antagonist (VKA) (international normalized ratio?=?2.0–3.0; n?=?401). The open-label study design allowed for the comparison of LOS between treatment arms under conditions reflecting normal clinical practice. LOS was evaluated using investigator records of dates of admission and discharge. Analyses were carried out in the intention-to-treat population using parametric tests. Costs were applied to the LOS based on weighted mean cost per day for DVT and PE diagnoses obtained from the Healthcare Cost and Utilization Project dataset.

Results:

Of 382 patients hospitalized, 321 (84%), had acute symptomatic PE; few DVT patients required hospitalization. Similar rates of VTE patients were hospitalized in the rivaroxaban and enoxaparin/VKA treatment groups, 189/405 (47%) and 193/401 (48%), respectively. In hospitalized VTE patients, rivaroxaban treatment produced a 1.6-day mean reduction in LOS (median?=?1 day) compared with enoxaparin/VKA (mean?=?4.5 vs 6.1; median?=?3 vs 4), translating to total costs that were $3419 lower in rivaroxaban-treated patients.

Conclusion:

In hospitalized North American patients with VTE, treatment with rivaroxaban produced a statistically significant reduction in LOS. When treating DVT and PE patients, clinicians should consider newer anti-coagulants with less complex treatment regimens.     

Do Changes in Democracy Affect the Political Budget Cycle? Evidence from Mexico

The previous empirical literature in opportunistic election cycles attempts to identify whether there is a significant impact of the election calendar on economic policy. The econometric analysis implemented in this paper goes a step further, seeking to test whether a country's time-varying degree of democracy affects the way in which economic policy is chosen as elections approach. A simple econometric model is estimated for the case of Mexico's fiscal policy between 1957 and 1997. The estimation reveals the government's strong systematic use of public spending in infrastructure and current transfers as a means to earn votes. Most importantly, we show that the magnitude of the election cycle has been exacerbated during the country's most democratic episodes.     

改制成本怎么看

东西南北中，国企改制看似声调儿欠高，实则呈加速度推进。