城市河流系统治理策略在鹅颈水生态修复中的应用

在简要介绍城市河流系统治理策略的基础上，详细论述其在鹅颈水生态修复中的应用。鹅颈水治理以流域为空间单位，准确把握河流主要问题，综合考量水资源、水安全、水环境、水生态、水文化，坚持工程和非工程措施并重，分阶段逐步实现洪水风险管理、外源污染控制、河流水质修复、河流生态系统恢复的目标。结果表明，鹅颈水目前已基本消除黑臭，水质逐渐提升至国家地表水Ⅳ类水标准。提出进一步加强河流生态系统恢复、优化管理制度、逐步建立全过程和全指标生态监测评估体系、实施弹性管理等鹅颈水系统治理措施。     

Self-determination and risk: the role of life goals and causality orientation in domain-specific risk propensity

A growing body of risk research shows that risk is content specific. Accordingly, various studies have highlighted some factors that could explain why people’s risk propensity may arise in certain domains of risk (e.g. the financial domain) but not in other domains (e.g. the recreational domain). Until now, no research has examined motivation as a possible correlate of domain-specific risk propensity. On the basis of self-determination theory (SDT), we examined the role of both extrinsic life goals (i.e. superficial goal striving, including fame, money, and physical attraction) and control-orientated personality style (i.e. feeling that one’s behaviors are governed by external contingencies) in the propensity to take risks in various domains (social, ethical, recreational, financial, and health/safety). A community sample of 197 participants completed measures scaled to assess extrinsic life goals, controlled orientation, and domain-specific propensity (DOSPERT). The results showed that pursuing extrinsic goals and being control oriented increased the propensity to take ethical, recreational, financial, and health/safety risks but decreased the propensity to take social risks. In addition, to corroborate that risk propensity is domain specific, these results indicate that superficial life aspiration and sensitivity to social pressures are highly predictive of instrumental risks (e.g. ethical and financial), moderately predictive of health risks, and negatively predictive of ego-threatening risks (e.g. social risk). The results are discussed in light of the domain-specific risk literature and in the perspective of interventions based on SDT.     

商业银行管理层激励机制研究——基于董事会多重目标的视角

由于管理层激励与银行价值相关性较弱,其有效性问题一直困扰着公司治理学者。研究商业银行管理层激励机制设计得出,银行有效管理层激励机制应该是：将董事会所有的目标都作为管理层激励合约的考核指标,并且各个目标产出对管理层收入的影响系数保持相同。除了反映公司价值目标的股票、期权等激励以外,银行管理层的收入还必须包括相当比例的反映资产风险等目标的激励部分。由于商业银行的特殊性,其最优管理层激励约束机制的目标影响系数设定应该较普通企业更低。因此,委托代理问题更严重,董事会直接监督的责任更大。     

Why we hate performance management—And why we should love it

Individual performance is a building block of organizational success. Not surprisingly, virtually all organizations have in place some type of performance management system. Yet, managers and employees are equally skeptical that performance management adds value; usually, it is seen as a waste of time and resources. We argue that the potential benefits of performance management are not realized because most systems focus exclusively on narrow and evaluative aspects such as performance appraisal. Herein, we offer a broader view of performance management, including discussion of how it differs from performance appraisal. We highlight specific and important benefits of performance management for employees, managers, and organizations. We also describe research-based conclusions regarding how performance management systems should be designed and implemented to realize these benefits. We hope our article will demonstrate that well-constructed performance management systems should not be hated, but rather embraced.     

The effect of shopping goals and in-store mobile device use on purchase outcomes in brick-and-mortar stores

The present study examines the effect of using a mobile device on search and evaluation by a shopper in a brick-and-mortar store. A conceptual model that proposes inter-relationships between shopping goals, the amount and type of in-store mobile device use, and purchase outcomes is developed. Data from a national quota sample of 1034 mobile shoppers is used to test hypotheses derived from the proposed model. The findings provide several new insights into the impact of in-store mobile device use on the consumer decision journey in a brick-and-mortar store. Depending upon the shopping goals of the consumer, the use of a mobile device by shoppers in a brick-and-mortar store can either decrease or increase search, lead to more deferred purchases or in-store-now purchases, and more online or physical store purchases. The study is among the first to model the pathway to purchase for mobile device assisted shoppers in brick-and-mortar stores.     

陕西黄河湿地生态问题及保护初探

陕西黄河湿地是由黄河及其支流渭河、洛河三条河流交汇而形成的,交汇处主要以河床漫滩为主,由河流水面、江心洲、滩涂、泛洪平原及部分低阶地组成,是典型的河流湿地。近年来随着周边经济的发展,人类开发利用湿地的强度越来越大,湿地生态系统及其功能退化明显。因此研究和保护这一湿地,对区域生态环境的建设有着重大意义。本文将河流湿地开发利用过程中出现的问题进行了分析,针对水资源减少、生物多样性锐减和环境污染等问题提出了一些开发与保护措施。     

Paraphrase与元语言意识的提升

在非英语专业研究生英语教学中,应将Paraphrase教学方法应用于英语课堂教学,教师应指导学生在对象语和元语言之间进行转换,培养与提高学生的元语言意识和整体语言能力。     

吉林省柳河县湿地利用与保护

从湿地类型、面积及其比例构成等方面介绍了吉林省柳河县湿地资源现状与基本特征;分析了湿地面积的动态变化及其原因;探讨了涅地资源变化特点及其未来发展趋势.认为湿地资源的利用率和生产力较低、湿地自然保护区建设缓慢以及泥炭地开发利用过度等方面,是目前柳河县湿地利用与保护中所存在的主要问题;在此基础上,提出实施柳河县湿地生态保护...     

1983-2006年南四湖湿地植被动态变化研究

采用实地调查和实验分析,结合遥感和地理信息系统技术,研究南四湖湿地在1983-2006年浮游植物和水生维管束植物的种类、分布和生物量变化.结果表明,1983-2006年,南四湖湿地植被生物量整体呈下降趋势,反映了人类的围垦、养殖等活动造成湿地初级生产力的降低,并且这种影响由湖泊外围向湖心弱化,对外围湿地的影响最大.     

长沙市湿地资源类型及其特征研究

长沙市湿地包括永久性河流,淡水湖泊,草本沼泽等自然湿地类型;水库、拦河坝、水电坝,淡水养殖池塘,农用池塘、小型水池,废水处理场所,城市景观水面和娱乐水面,灌溉用沟、渠等人工湿地类型.长沙市湿地生态系统不仅为长沙地区提供了大量的生产生活用水和动植物产品等多种资源,同时还是诸多野生动植物的重要栖息地,湿地对于珍稀濒危物种的...