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41.
Previous research suggests that attitudinal resistance to information that challenges a prior evaluation increases with the amount of information underlying the prior evaluation. We revisit this proposition in a context in which a set of important claims about a target brand are presented either alone—a lower amount of isolated information—or along with other favorable, but less important claims—a higher amount of embedded information. Results from two experiments show that when the challenge occurs immediately after the initial evaluation, a greater amount of embedded initial information does produce greater attitudinal resistance. However, when the challenge occurs after a delay, a lesser amount of isolated information produces greater attitudinal resistance. The findings qualify previous assumptions about the role of prior information in attitudinal resistance, and support a constructive view of judgment revision and attitudinal resistance.  相似文献   
42.
径向水平井技术可为低渗透、稠油、老油田复产和边际油气提供一种经济高效的开采途径。介绍了美国RDS(Radial Drilling Services)径向水平井技术的原理、工艺、设备、施工步骤及现场应用,分析了RDS径向水平井技术在低渗透井、低产井、稠油井和二次开发井中的应用效果。  相似文献   
43.
为了分析粉质填土路堤内的渗流规律,对压实粉土的渗透性进行了室内试验研究。分别以压样法和击实法制备试样,通过室内变水头渗透试验研究了压实粉土在不同渗流方向上渗透系数的差异以及干密度对其渗透性的影响规律。结果表明:2种制样方法获得的压实粉土都是在与压实面平行方向上的渗透性最强,垂直方向上的渗透性最弱,表现出明显的渗流各向异性特征,且用击实法获得的试样渗流各向异性更为显著;另外,随着干密度的增大,2种试样在各个方向上的渗透性都减弱,且与压实面平行和垂直2个方向上的渗透系数差值也减小。研究结果可为分析渗流各向异性对粉质填土边坡内渗流场的影响及进一步合理评价其稳定性提供理论基础。  相似文献   
44.
We analyze a monopolist's incentive to innovate a new antibiotic which is connected to the same pool of antibiotic treatment efficacy as is another drug produced by a generic industry. We outline the differences of antibiotic use under market conditions and in the social optimum. A time- and state-dependent tax-subsidy mechanism is proposed to induce the monopolist and generic industry to exploit antibiotic efficacy optimally.  相似文献   
45.
The purpose of this article is to analyse one of the very first European-level instances of trade union and social movement interaction in defence of the public sector, namely, the Coalition for Green and Social Procurement, an alliance of European trade unions and green and social non-governmental organisations (NGOs), and its campaign for an amendment of the new public procurement directives from 2000 to 2003. It will be examined to what extent this campaign was able to change the directives and counter neoliberal restructuring effectively as well as what the possibilities but also limits of trade union and social movement cooperation are as exemplified in this particular case study.  相似文献   
46.
Theory asserts that individuals’ migration decisions depend more on their expectations about future income levels than on their current income levels. We find that the implementation of market-oriented reforms in post-communist countries, by forming positive economic prospects, has reduced emigration as predicted by theory. Our estimates show that migration flows are highly responsive to reforms supporting private enterprises and financial services, which provide individuals with strong signals about their future prospects. We show that reforms that improve the management of infrastructure services have no link with migration patterns, which may be an important lesson for government policy.  相似文献   
47.
在焦化行业内,炼焦过程必将产生大量焦炉荒煤气,采用煤气鼓风对焦炉荒煤气进行处理就成为工作重点,不仅能够促进环境的改善,还可以回收荒煤气中大量的化工原材料,并带来较大的经济效益。但在焦化厂实际生产中,横管式煤气初冷器常常因阻力过高发生故障,对煤气鼓风机的正常运作形成干扰,造成装置沉积物阻塞与环境污染等问题。论文以湖北中平鄂钢联合焦化有限责任公司的横管式煤气初冷器为实例,简要分析阻力增大的原因及应对措施。  相似文献   
48.
Via a multiple case study of work in microfinance institutions in India, this paper reports on the experiences of field officers and branch managers following work digitalisation. It identifies and explains an intriguing post-digitalisation paradox of reported increased job satisfaction and tighter technological control diminishing branch managers' work-life balance. The paradox draws attention to the significance of context in workers' experiences of mobile digital technologies (MDTs) and contradicts previous studies on workers' positive experiences of adopting MDTs: the workers in this study did not experience greater autonomy or flexibility but reported enhanced employment security and status. The paper also adds to literature on employment relations following work digitalisation by revealing powerful enforcement of technological control, with ‘WhatsApp’ identified as a key managerial tool used for surveillance and discipline, and worker resistance at the margins.  相似文献   
49.
Since McCallum's (1995 McCallum, J. 1995. National borders matter: Canada-US regional trade patterns. American Economic Review, 85(3): 61523. [Web of Science ®] [Google Scholar]) finding of surprisingly high border effects on trade between the US and Canada, there have been a number of studies on other parts of the world, and improvements made to the gravity model to measure this effect accurately. This paper suggests some other modifications to the model, and applies it to a region of the world that presents a distinctly interesting case. Changes in border effects of formerly socialist countries in Central and East Europe, and countries in the former Soviet Union are analyzed during 1976–2002 at country and sectoral levels, and also with respect to blocs of countries. A discussion on cross-country variations in border effects follows the computations.  相似文献   
50.
This paper questions the consequences of the use of electronic knowledge repositories for work and employment. Drawing on critical research suggesting that knowledge management associated with such tools presents similarities to scientific management principles, it proposes to examine the following key research question: how do employees experience the transformation of the employment relationship when a knowledge repository is introduced to the workplace? The inquiry is grounded in an exploratory qualitative case study of a knowledge management system designed to foster knowledge‐sharing in a Belgian public administration. The findings illustrate two complementary outcomes: this system resulted in employees experiencing deskilling and work degradation, and was met with resistance. Significantly, this paper considers work degradation as a reflexive phenomenon in the context studied, where knowledge‐sharing systems produced deskilling and resistance as part of a specific re‐regulation process.  相似文献   
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