Reconciling Political and Economic Goals in the Net Neutrality Debate     

Johannes M. Bauer  Jonathan A. Obar 《The Information Society》2014,30(1):1-19

The net neutrality debate is one of several sites of struggles to adapt and redefine rights and obligations of stakeholders in the Internet-centric communications system. Its outcomes will shape the future of the Internet and influence the level and distribution of its benefits. We identify key values that drive the net neutrality discussion and examine the governance mechanisms proposed to achieve these objectives. We find that there is no single policy instrument that allows realization of the range of valued political and economic objectives simultaneously. Contrary to some of the claims advanced in the current debate, safeguarding multiple goals requires a combination of instruments that will likely involve government and nongovernment measures. Furthermore, promoting goals such as the freedom of speech, political participation, investment, and innovation calls for complementary policies.  相似文献   

An evaluation framework for cross-lingual link discovery     

Ling-Xiang Tang  Shlomo Geva  Andrew Trotman  Yue Xu  Kelly Y. Itakura 《Information processing & management》2014

Cross-Lingual Link Discovery (CLLD) is a new problem in Information Retrieval. The aim is to automatically identify meaningful and relevant hypertext links between documents in different languages. This is particularly helpful in knowledge discovery if a multi-lingual knowledge base is sparse in one language or another, or the topical coverage in each language is different; such is the case with Wikipedia. Techniques for identifying new and topically relevant cross-lingual links are a current topic of interest at NTCIR where the CrossLink task has been running since the 2011 NTCIR-9. This paper presents the evaluation framework for benchmarking algorithms for cross-lingual link discovery evaluated in the context of NTCIR-9.  相似文献   

Effective cell collection method using collagenase and ultrasonic vibration     

Y. Kurashina  K. Takemura  S. Miyata  J. Komotori  T. Koyama 《Biomicrofluidics》2014,8(5)

This study proposes a novel cell collection method based on collagenase treatment and ultrasonic vibration. The method collects calf chondrocytes from a reusable metal cell culture substrate. To develop our concept, we calculated the natural vibration modes of the cell culture substrate by a finite element method, and conducted eigenvalue and piezoelectric-structural analyses. Selecting the first out-of-plane vibration mode of the substrate, which has a single nodal circle, we designed and fabricated the cell collection device. The excited vibration mode properly realized our intentions. We then evaluated the cell collection ratio and the growth response, and observed the morphology of the collected cells. The collagenase and ultrasonic vibration treatment collected comparable numbers of cells to conventional trypsin and pipetting treatment, but improved the proliferating cell statistics. Morphological observations revealed that the membranes of cells collected by the proposed method remain intact; consequently, the cells are larger and rougher than cells collected by the conventional method. Therefore, we present a promising cell collection method for adhesive cell culturing process.  相似文献   

认知心理学视域下体育教学方法分类模式的创新及重构*     

祝〓娅  黄依柱 《广州体育学院学报》2014,(5):46-49

通过文献资料、逻辑分析等方法对我国体育教学方法分类体系进行研究,旨在构建以认知心理学知识观为分类标准的体育教学方法分类模式。研究表明:现有体育教学方法分类模式不能为体育教学实践提供足够的支持,运用认知心理学关于知识表征类型的相关研究成果对体育教学目标进行解构,构建了言语图表信息类教学方法、智慧技能类教学方法、认知策略类教学方法和信念类教学方法四级分类模式。该分类模式对促进体育教学方法分类研究的科学化和体育教师合理选择与运用教学方法具有重要意义。  相似文献   

Is This the Paradigm Shift We Need?     

Jonathan Mirvis 《Journal of Jewish Education》2013,79(4):305-308

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Obtaining Diagnostic Classification Model Estimates Using Mplus     

Jonathan Templin  Lesa Hoffman 《Educational Measurement》2013,32(2):37-50

Diagnostic classification models (aka cognitive or skills diagnosis models) have shown great promise for evaluating mastery on a multidimensional profile of skills as assessed through examinee responses, but continued development and application of these models has been hindered by a lack of readily available software. In this article we demonstrate how diagnostic classification models may be estimated as confirmatory latent class models using Mplus, thus bridging the gap between the technical presentation of these models and their practical use for assessment in research and applied settings. Using a sample English test of three grammatical skills, we describe how diagnostic classification models can be phrased as latent class models within Mplus and how to obtain the syntax and output needed for estimation and interpretation of the model parameters. We also have written a freely available SAS program that can be used to automatically generate the Mplus syntax. We hope this work will ultimately result in greater access to diagnostic classification models throughout the testing community, from researchers to practitioners.  相似文献   

Decision making in sport: the effect of stimulus-response probability on the performance of a coincidence-anticipation task     

L Proteau  L Lévesque  L Laurencelle  Y Girouard 《Research quarterly for exercise and sport》1989,60(1):66-76

The purpose of the present study was to evaluate the quality of a motor response for different levels of expectancy and time constraint, in a two-choice coincidence-anticipation task. The probability of each of the two events likely to be presented were varied across different levels as well as the speed of the stimulus to be intercepted. The results indicated that neither the choice reaction time (CRT) and movement time, nor the performance of coincidence-anticipation were affected by the probability of the stimulus for the low and moderate stimulus speeds. However, when the stimulus traveled at a high speed a trade-off took place. The CRT decreased as the probability of the event increased, whilst the proportion of response initiation errors increased for the low probability events. This trade-off resulted in a better coincidence-anticipation as the probability of the event increased. The results obtained in the present experiment are clearly different from those obtained in a classic CRT-deadline paradigm, in that the trade-off observed between CRT and response initiation errors was far less pronounced in the coincidence-anticipation task. This difference was attributed to the higher negative consequences associated with a response initiation error in a coincidence-anticipation task. It is thus concluded that the tasks used to study the nature of the decision processes taking place in sports and sports-like situations must have some ecological validity to be of some help for the practitioner.  相似文献   

Generic vs. Name-Brand: Regime Labels and the Meaning of Public Support for Democracy in Nicaragua     

Hiskey  Jonathan T. 《Int. Journal of Public Opinion Research》2003,15(3):285-299

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“There's a Great Big Beautiful Tomorrow': Historic Memory and Gender in Walt Disney's “Carousel of Progress”     

Lynn Y. Weiner 《Journal of American culture (Malden, Mass. : 2003)》1997,20(1):111-116

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E-journals from China: Technical and Collection Issues     

Yurong Y. Atwill   《The Journal of Academic Librarianship》2005,31(6):598-604

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