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51.
为研究石家庄市冬季重污染天气过程的成因及影响因素,对2015-01-07至2015-01-10这一时间段的重污染过程从PM2.5浓度变化、气象条件演变及其对PM2.5浓度的影响、PM2.5与主要气态污染物的相关性、区域性污染传输等方面进行分析。结果表明:此次石家庄市重污染过程是在区域性大气静稳态背景下形成的,地面压力及风场对PM2.5浓度影响较大;石家庄NO2浓度与PM2.5浓度相关性很高,机动车尾气对城市的污染逐渐加剧;SO2浓度与PM2.5浓度相关性高说明燃煤仍是石家庄市重要污染来源;该时间段河北南部城市区间存在污染物区域性传输。  相似文献   
52.
安康旅游业的区位开发与区域联合开发   总被引:3,自引:0,他引:3  
孙根年  季红 《商业研究》2005,(18):177-179
在广泛野外调查的基础上,依据区位开发与区域联合开发的概念模型,提出安康旅游区位开发与区域联合开发的新思路,即突出山水特色,发展生态旅游;策划两个亮点,吸引国内游客;联合三大城市,实施联合开发:定位中转旅游:开拓三环市场。  相似文献   
53.
We draw on institutional isomorphism literature to develop a conceptual framework which uncovers how emerging market MNEs manage institutional tensions and complexity in corporate governance (CG) regulations within and across economic environments. Using a sample of 400 firm-year observations (2011–2015) from Nigeria, we show foreign directorship and cross-listing as significant avenues for governance isomorphism. MNEs employ these mechanisms to manage and reconcile foreign and Nigerian CG regulations whilst overcoming institutional weaknesses at home. Specifically, governance isomorphism leads to improvement of home country CG disclosures practices because of associated linkages with international CG systems through cross-listing and employment of multinational directors.  相似文献   
54.
Sporadic studies on the global norm of national treatment for patent uncertainties (NTPU) urge for insights of changes as well as for clarification to discrepancy. This global norm has been a concern for policy makers and practitioners for over a century, as a socially and strategically more significant matter than before for multilateral cooperation given the active technology transfer across borders. To fill in the void and extend prior studies, we examine the global compliance of NTPU from the perspective of patent pendency and granting by addressing three relevant questions: (1) Is NTPU upheld within countries? (2) How does NTPU diverge across countries? (3) How does NTPU change, as an outcome, over time? Based on the institutional theory, lagged regression modeling and longitudinal comparison of US and Chinese patenting, our findings reveal that: (1) NTPU is overall upheld because equality in pendency is demonstrated in both countries and in US granting, and foreigners are even favored for Chinese granting. (2) NTPU is comparatively divergent between the countries in pendency and granting due to national variations. (3) Regressive and progressive changes in NTPU are evidenced since both countries provide equal or higher granting, but longer pendency than before. Our findings contribute to theories by providing new insights to the global norm of national treatment and institutional theory from the perspective of patent uncertainties. We make novel empirical contribution to address NTPU changes of the top patent filing countries and methodological contribution to the longitudinal comparative study. The results also provide implications that concern policy makers and practitioners to handle patent uncertainties across borders.  相似文献   
55.
Poverty, despite being a multifaceted concept, is commonly measured in either absolute or relative monetary terms. However, it can also be measured subjectively, as people form perceptions on their relative income, welfare and life satisfaction. This is the first study that uses the National Income Dynamics Study data to analyse poverty across various objective and subjective methods. The paper finds that while respondents' poverty status varies across methods, blacks remain the racial group most likely to be defined as poor by at least one method. The multivariate analysis reveals that the impact of some explanatory variables, such as experience of negative events, frequency of crime victimisation, health status and importance of religious activities, is mixed across methods.  相似文献   
56.
杨嘉婷 《价值工程》2014,(23):203-205
当前我国中小企业正处于经济转轨、社会转型期,在急剧变化和激烈竞争中将面临着严峻的考验与巨大的压力。这既阻碍了企业的发展,更严重危害着员工的身心健康。而EAP的实施能够有效地化解压力,提高工作效率。本文结合诸暨市当地实际情况,试从EAP在诸暨市中小企业的适用性及其产生的作用入手,进而探索视浙江省中小企业EAP的实施路径,希望为中小企业对员工建立有效的精神激励机制提供一些对策。  相似文献   
57.
Airports have significant implications for regional and local tourism development, so their impacts need to be assessed. Based on in-depth interviews with local residents, this study examined the effects of an airport development project in Mexico. Negativity bias theory was adopted as a theoretical framework to gain a fuller understanding of host communities' perceptions. In accordance with this theory, even though the economic impacts of the airport's construction are recognised as positive, its environmental and social effects on locals' everyday lives are perceived more negatively. As a result, most locals interviewed do not support the airport project. This is because, in line with negativity bias theory, when perceived negative impacts outweigh positive ones, a holistic evaluation that integrates negative and positive events will ultimately be unfavourable. Practical implications in terms of public consultation, perceived impacts and tourism development are discussed.  相似文献   
58.
盐城市水资源承载状态预警研究   总被引:2,自引:1,他引:1  
在分析水资源承载状态预警概念的基础上,引入"三类六级"预警思想,采用可变模糊法和层次分析法的思想,构建盐城市水资源承载状态综合预警指标体系,评价盐城市2015年、2020年和2030年的水资源承载状态,并结合各年份承载状态变化趋势,对未来年份进行预警。结果表明:盐城市2015年水资源处于临界超载的状态,但随着"关于做好建立全国水资源承载能力监测预警机制工作的通知"等一系列措施的实施,2020年、2030年承载状态将逐步好转,到2030年将处于可载的状态。  相似文献   
59.
基于联合研究实体的国家实验室网络化规律研究   总被引:1,自引:0,他引:1  
对基于联合研究实体CMI的埃姆斯国家实验室网络化案例分析后发现,拉力(国家战略需求、问题综合复杂)和推力(自身发展追求、自我能力局限)共同驱动国家实验室网络化。强实力、精专业的优质网络节点、相似-差异-分散-役使四重属性叠加的网络关系以及星形网络结构,基于点、线、面三维视角形成了国家实验室网络化基本相态。在国家实验室需求的基础上,网络化规则体系通过实践探索自发生成,且反作用于网络化实践,为网络化文化形成提供了必要条件,成为实验室网络化持续演进的文化根基。最后,从网络化方式、依靠力量、相态、规则、嵌入情景与自主发展5个方面,总结出国家实验室网络化规律对我国国家实验室网络化发展的主要启示。  相似文献   
60.
Broadband Internet has fundamentally changed business models in many industries. In the music industry, for instance, old business models were challenged by illegal competitors, and broadband Internet has enabled value creation through new business models. The changes that established business models experienced in the wake of broadband Internet, however, differed vastly across national markets, and these differences are not well understood. We build a conceptual framework and study the extent to which differences in economic and cultural factors are associated with different market outcomes in the wake of the proliferation of broadband Internet. Thus, we compile two unique data sets from the music industry, comprising (1) revenue data for 36 countries and 22 years and (2) piracy data for 47 countries and >2 years. We use a Bayesian multilevel model to explore between-country heterogeneity in the associations between these variables and broadband Internet adoption and business model innovations. Our results show that the negative association between broadband Internet penetration and music revenue is weaker in high-income countries, where income restrictions are less likely to drive demand towards illegitimate piracy services. In terms of cultural factors, we find that a market's response to the introduction of broadband Internet is less negative in countries scoring high on Hofstede's individualism and uncertainty avoidance dimensions. Furthermore, we find that overall revenues only recover after the latest generation of streaming services (e.g., Spotify) has been introduced, and the adoption of these services is associated with lower levels of online music piracy.  相似文献   
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