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41.
在分析信息商品高固定成本、低边际成本等相关特征的基础上,全面探讨在信息商品市场中传统价格形成机制失灵的情况下,价格歧视定价策略的必要性及形成原因,论述信息商品价格歧视定价的理论依据,并在此基础上提出信息商品价格歧视定价的几种具体制定策略。 相似文献
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44.
图书采访策略的实践性探讨 总被引:2,自引:1,他引:2
本根据我馆采访工作实践,从影响因素,原则制定和策略实施三个方面阐述了高校图书馆图书采访策略。认为这是一项系统工程,要通过对服务对象、服务目标、馆藏特色、经费情况、出版发行动态等方面情况的调查研究,作出综合的分析和判断,是一个合理、科学地配置献资料的过程。 相似文献
45.
ABSTRACT Amid rising controversy around the alleged distinctions between merit and excellence lies a familiar refrain, scarcity. The narrative of academic scarcity, proclaiming the insufficient numbers of scholars and academics of color, permeates conversations in higher education. We suggest that the academic scarcity narrative, a remnant of stagnant logics of diversity, circulates as a contemporary mechanism of what we name disciplinary containment. Extending disciplinary conversations around rhetorical containment, we argue that disciplinary containment perpetuates whiteness. 相似文献
46.
Baudelaire Ulysse Theodorea Regina Berry 《International journal of qualitative studies in education》2016,29(8):989-1001
AbstractIn our conceptual essay, we draw on an exchange between a White scholar and a group of panelists on Critical Race Theory at an international conference. Taking up this exchange as our point of departure, we work in dialectical and multidimensional ways between the essentialized politics of place on race and critical anti-essentializing foundations in recent Critical Race Feminism and Critical White Studies’ literatures. Working the dialectics and multidimensionality of the place that race makes in academic discourse, we recognize and ethically work through the essentialized politics of place in advancing anti-essentializing understandings of race. In articulating these anti-essentializing understandings, our conceptual essay drives at the notion of a generative politics of place on race in academic discourse. A generative politics of place holds essentialized realities and anti-essentializing foundations of race in dialectical and multidimensional tension for teaching, learning, and discussing race in local, national, and international contexts. 相似文献
47.
王素然 《廊坊师范学院学报》2006,22(4):101-103
使用自编《中学生互联网使用调查问卷》对某中学学生互联网使用情况进行全面调查,调查结果显示了中学生互联网使用的特点及影响,这些提醒人们必须要对中学生互联网的使用进行积极而适当的干预。 相似文献
48.
This study estimated the expected point value for starting possessions in different field locations during rugby league match-play and calculated the mean expected points for each subsequent play during the possession. It also examined the origin of tries scored according to the method of gaining possession. Play-by-play data were taken from all 768 regular-season National Rugby League (NRL) matches during 2010–2013. A probabilistic model estimated the expected point outcome based on the net difference in points scored by a team in possession in a given situation. An iterative method was used to approximate the value of each situation based on actual scoring outcomes. Possessions commencing close to the opposition’s goal-line had the highest expected point equity, which decreased as the location of the possession moved towards the team’s own goal-line. Possessions following an opposition error, penalty or goal-line dropout had the highest likelihood of a try being scored on the set subsequent to their occurrence. In contrast, possessions that follow an opposition completed set or a restart were least likely to result in a try. The expected point values framework from our model has applications for informing playing strategy and assessing individual and team performance in professional rugby league. 相似文献
49.
Lennart Fischer Joseph Baker Rebecca Rienhoff Bernd Strauß Judith Tirp Dirk Büsch 《Journal of sports sciences》2016,34(17):1637-1642
There is little research investigating the maintenance of perceptual-cognitive expertise in general and even less comparing coaches of different ages. The aim of this study was to test for perceptual-cognitive differences between age groups, licence levels, and their interaction. This study investigated differences in skilled performance between young and middle-aged coaches of three different skill levels. Participants performed an accuracy-oriented pattern recall (mean distance in pixel) and a time-oriented flicker test (mean detection time in ms). There were some significant differences between age groups and between skill groups for both tests, but no interactions. For the pattern recall test, the effect sizes were larger for skill level differences, while for the flicker test effects were larger for ageing. These results suggest coaches are able to maintain accuracy skills better than reaction timed tasks. This is in line with findings on speeded performance in general populations, which show declines with age. Moreover, results also support findings on perceptual expertise in skills where accuracy was important. 相似文献
50.
文章对当代图书馆信息咨询服务工作随着网络时代的到来呈现出的创新变化和用户需求的特点进行了分析 ,提出当代图书馆信息咨询服务的发展方向和策略 相似文献