湿地植物小叶章SSR引物筛选及反应体系优化

开引物发合适的小叶章PCR-SSR引物并建立优化的反应体系是开展小叶章遗传多样性研究的基础。利用正价设计方法对小叶章SSR反应体系中的DNA模板和引物2个反应因素进行了9个水平的优化,并通过温度梯度优化引物退火温度。自主开发了51对小叶章SSR引物,筛选出12对扩增条带清晰、多态性丰富的SSR引物,为小叶章遗传多样性研究提供方法和理论依据。     

试用期制度筛选机制的经济学分析——基于《劳动合同法》中试用期内容的变化

试用期制度是劳动合同的重要组成部分,也是用人单位重要的人才筛选工具。《中华人民共和国劳动合同法》的颁布,在一定程度上影响了其筛选机制作用的发挥。文章从经济学角度分析了试用期筛选机制的原理,并结合合同法中对试用期长度、试用期待遇等方面的具体规定,提出了正式录用后的工资率的制定标准应在一个合理的范围内,试用期的筛选功能才能得到充分发挥的切实可行的操作性建议。同时指出,要想试用期筛选机制更好的运行,用人单位应该采取多种激励考核手段、同时劳动者也应该提高自身的知识能力水平,通过雇佣双方的共同努力来保证试用期筛选功能的充分发挥。     

哈尔滨市郁金香盆栽品种筛选试验研究

本研究以荷兰引进的15个郁金香品种为试验材料,通过盆栽种植于黑龙江省森林植物园内,并对郁金香各品种植株的发芽率、开花率、株高、花径及花蕾大小等各方面性状的综合对比与分析,从中筛选出适宜哈尔滨地区盆栽的郁金香品种为展览获胜者、美国梦、圣诞梦和金阿波罗.     

不对称雇主学习、外部选择与雇员谈判力

本文在非合作博弈（策略式）单边不对称信息讨价还价框架下,按照外部约束（而不是威胁点）的思路来模型化外部雇主的竞争,以分析不对称雇主学习的程度对处于信息劣势的通用性雇员谈判力的决定作用。本文提出的框架弥补了已有文献的一些不足,同时为不对称雇主学习这一劳动经济学概念提供了一个讨价还价理论基础。     

A History of Scandinavian Socially Responsible Investing

This article contributes to the literature on national varieties of socially responsible investment (SRI) by demonstrating how Scandinavian SRI developed from the 60s and onwards. Combining findings on Scandinavian SRI with insights from previous research and institutional theory, the article accounts for the role of changes in societal values and norms, the mechanisms by which SRI practices spread, and how investors adopt and transform practices to suit their surrounding institutional contexts. Especially, the article draws attention to how different categories of investors act as institutional entrepreneurs during specific historical periods, and how these roles come to shift as institutional rule systems of varying societal levels change. Thus, the insights gained are useful in the future research agenda concerned with advancing knowledge on idiosyncrasies and commonalities of national SRI manifestations, and to understand the reasons underlying such characteristics.     

The influence of employment screening on employee attachment

In an examination of the possible impact of differences in the number of employment screening devices on employee attachment, cognitive dissonance theory was used to deduce the hypothesis that increases in the number of screens would be associated with more favorable job-related attitudes. Contrary to the prediction, results from a national probability sample of 702 full-time employees yielded evidence that an increase in screening was related with increasingly negative responses. Statistical controls for employee demographic differences and organizational size did not alter the conclusion. The need for additional study of the possible marginal utility of multiple screens in the hiring process is highlighted.     

Screening, Bidding, and the Loan Market Tightness

Bank loans are more available and cheaper for new and small businesses inthe U.S. in concentrated banking areas than in competitive banking areas. Weexplain this anomaly by analyzing banks' decisions to screen projects andtheir competition in loan provisions. It is shown that, by exacerbating thewinner's curse, an increase in the number of banks can reduce banks'screening probability by so much that the number of banks that activelycompete in loan provisions falls and the expected loan rate rises. This isthe case when the screening cost is low, which induces all active bidders tobe informed. The opposite outcome occurs when the screening cost is high, inwhich case there are sufficiently many uninformed banks in bidding toattenuate the winner's curse. We also examine the social optimum     

“价值投资型”股票估价方法研究

随着近两年证券市场结构性大调整 ,价值投资组合已成为机构投资者的主导策略 ,而证券估价是价值投资和证券筛选型投资组合的核心技术。我国证券市场历史较短 ,针对其衍变特征和估价现状 ,研究较为适合我国证券市场的“价值投资型”股票的估价方法大有俾益。     

作为委托人的创业投资家:契约构造、筛选与监控

基于融资契约理论对委托代理的问题,使得创业投资中代理人/创业企业家和委托人/创业投资家之间存在着利益冲突,所以创业投资家采用了缓解冲突的三种主要方法———创业投资契约构造、投资前筛选以及投资后的监控和增值服务———在实践中的应用和相关问题。     

官29断块整体调驱调剖治理技术的应用

依据断块整体开发情况和油藏开发存在问题,筛选化学体系,优化工艺设计参数,提高油藏的整体调驱治理效果,取得最终的技术认识。