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Lorenza B. Fontana 《教育政策杂志》2019,34(3):351-373
ABSTRACTPolicy initiatives that seek to account for ethno-cultural differences in education and schooling have become increasingly popular over the past few decades. These include affirmative action measures and bilingual education models. The rationale for the implementation of these policies focuses on their potential to rectify historical discrimination by both levelling horizontal inequalities and granting equal value to different cultures and languages in the schooling process. In this framework, however, ethnic communities are often treated as discrete and static social aggregates, and social heterogeneity and spillover effects between groups are disregarded. This paper draws on empirical case studies from Colombia and Peru to show how identity policies of education can increase inter-ethnic competition, leading to protracted social conflicts. These outcomes, beyond negatively impacting local communities, raise important dilemmas surrounding the theoretical and operational foundations of these popular policy measures. 相似文献
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Lorenza Parisi 《The Communication Review》2020,23(1):66-89
ABSTRACTIn this paper, we address algorithmic imaginary, perception and tactics of Italian dating apps users. Little attention has hitherto been devoted to the ways in which the algorithms employed by mobile dating platforms (to rate users, to manage user visibility, to arrange results) might contrast, or enhance, people’s homophily. Our goal is to explore whether and how mobile dating algorithms modify the perception of what we define as “relational filter bubbles”; and whether, and how, users believe dating algorithms reshape (extend or limit) the heterogeneity of their intimate interactions. The paper builds on literature addressing online dating, the datafication of society, the rise of the so-called quantified self, and of the algorithmic culture. We organized 4 focus groups involving Italian dating apps users, who reported a variety of sexual orientations and of dating apps usage. Overall, while dating apps’ algorithms operate in an opaque way, participants developed an “algorithmic imaginary”. Moreover, they appreciate the role of mobile dating apps in reinforcing their relational homophily (their tendency to like people that are “similar” to them), whilst, at the same time, mainly using these apps for increasing the diversity of their intimate interactions in terms of extending their preexisting networks. 相似文献
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R J Markert A J Parisi H V Barnes S Cohen K Goldenberg L E Mieczkowski M Dunn R M Siervogel 《Bulletin of the Medical Library Association》1989,77(2):133-138
The experiences of medical students, residents, and faculty with a computerized literature searching system were evaluated. Third-year medical students, internal medicine and family practice residents, and full-time and voluntary faculty at one medical school had the opportunity to use a full-text and bibliographic medical literature retrieval system free of charge for an eleven-month period. Subjects conducted nearly nine thousand literature searches over a period of 942 system hours. Questionnaire data showed that participants could learn to use and would use an electronic information system, felt capable of using the system, utilized the system for a variety of purposes and in a number of different ways, and viewed the system as a valuable tool in searching the medical literature. The results are discussed in the context of the educational needs of the four user-groups and medical education planning by institutions. 相似文献
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Parisi JM Rebok GW Carlson MC Fried LP Seeman TE Tan EJ Tanner EK Piferi RL 《Educational gerontology》2009,35(10):867-879
The Experience Corps?, a community-based intergenerational program, was developed to promote the health of older adults, while simultaneously addressing unmet social and academic needs in public elementary schools. The model was designed to draw on, and potentially activate, the wisdom of older adults. This paper explores the nature of wisdom-related knowledge and how older adults may apply such knowledge when tutoring and mentoring young children, as well as the potential for the intergenerational transmission of wisdom from the older adult volunteers to the school children being mentored by them. Developing an understanding of these issues may provide a basis for the creation of more extensive wisdom-generating opportunities for both older and younger generations. 相似文献
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P Blaskey M Scheiman M Parisi E B Ciner M Gallaway R Selznick 《Journal of learning disabilities》1990,23(10):604-612
The objectives of this pilot study were to investigate the effectiveness of Irlen filters for improving comfort and reading performance and to determine whether traditional optometric intervention would be effective in relieving the symptoms commonly reported by people seeking help through the use of Irlen filters. Thirty subjects were included in the study: 12 males and 18 females. The ages of the subjects ranged from 9 to 51 (mean = 23.6). They were randomly placed in either an Irlen filter treatment group (n = 11), a vision therapy treatment group (n = 11), or a control group (n = 8). Pre- and posttesting on all subjects included a vision evaluation, reading and intelligence testing, the Irlen scotopic sensitivity screening test, and a symptom questionnaire. Results revealed that subjects in both treatment groups were more comfortable after treatment, although only the vision therapy group showed improvement in vision functioning. The subjects in the Irlen filter group did not show any significant gains in reading rate, word recognition in context, or comprehension. 相似文献
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Open source is an example of user-centric innovation initiated by an individual or group of users to satisfy their specific needs; the more a software evolves towards a stable release able to address the requirements of its developers, the more successful the project. In this paper we use a large data-set obtained from SourceForge.net to estimate the relationship between a series of different characteristics of OS projects and the probability of evolution of the source code from a preliminary release to a mature version. We show that while projects distributed under highly restrictive licensing terms (GPL) have a significantly smaller probability of reaching a stable release, applications towards sophisticated users have a larger probability of evolving in the development status. Interestingly, we find that the size of the “community of developers” increases the chances of progress but this effect decreases as the community gets larger, a signal of possible coordination problems. 相似文献
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Three experiments demonstrated in the rat that the flexor reaction to a nociceptive cutaneous stimulus (a .5-msec, .5-mA electric shock to the feet) was inhibited by a preceding light flash. In the first, the optimal lead time was at 50 or 100 msec compared to separations of 5 or 400 msec. In the second, the inhibitory effect was shown in ambient noise approximating threshold, indicating that the response decrement was not caused because the light may have blocked a facilitating effect of a moderate background noise level. In the third experiment, the light flash inhibited both the flexor reaction to the cutaneous stimulus and to an acoustic startle stimulus with which it was randomly intermixed. These findings reveal that inhibition is not specific to a particular modality of eliciting stimulus input, though it may be restricted to a particular class of motor events, that is, to flexor reactions. 相似文献
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Surveying the roofs of Rome 总被引：1，自引：0，他引：1
Lorenza Fiumi 《Journal of Cultural Heritage》2012,13(3):304-313
This study is aimed at investigating a portion of the city of Rome by means of remotely sensed Multispectral Infrared And Visible Imaging Spectrometer (MIVIS) data. A particular attention was devoted to building roofs described not only as the last defining touch given to a building, the aesthetic conclusion to a whole construction process, but also as expression and sign of a society's level of civilisation, culture and technical skill. Through the classification of objects and materials, we propose to combine history and science as different ways of interpreting a city, in this case Rome, and to implement an image processing technique as an effective tool in urban planning. 相似文献