自由的现代派——《反现代派》导言

谁是反现代派?巴尔扎克、贝尔、巴朗士、波德莱尔、巴尔贝、布鲁瓦、布尔杰、布吕纳吉埃、巴莱斯、贝尔纳诺斯、布勒东、布朗修、巴尔特……并不是所有姓氏以字母B开头的法国作家,但是从字母B开头,法国作家的数目已经很惊人了。并非所有的现状的捍卫者、形形色色的保守派和反革命分子,也并非所有对他们的时代感到忧郁和失望者、牢骚鬼和坏脾气的人,而是和现代、现代主义或现代性关系微妙的人,不情愿的现代派,分裂的现代派,或不合时宜的现代派。     

Revising Legacy Media Practices to Serve Hyperlocal Information Needs of Marginalized Populations

ABSTRACT

This study explores how two nonprofit media organizations–PublicSource and Philadelphia Community Access Media (PhillyCAM)–have transformed their legacy practices to better connect within and serve marginalized populations in Pittsburgh and Philadelphia, PA. As traditional newsrooms have been depleted by dire financial realities, new journalism outcroppings have heeded the Knight Commission’s Informing Communities: Sustaining Democracy in the Digital Age (2009) report and, consequently, revised their approaches to community engagement. Adjacent to these reformed legacy newsrooms are community media organizations that operate a municipality’s public, educational, or government (PEG) access media production facilities. Although PEG access media’s legacy has no clear genealogical ties with traditional journalism, an increasing amount of PEG operations over the past ten years have started to intentionally test editorialized forms of community news reporting. The data collected and assessed in this study has indicated that news organizations like PublicSource have an explicit need to do more relational community engagement work that will enable it to fill hyperlocal information gaps and better serve marginalized populations. Community media organizations like PhillyCAM have extensive experience engaging diverse publics; however, as this study reveals, they could benefit from employing formalized news production methods that are guided by journalistic standards.     

Effects of regular training at the same time of day on diurnal fluctuations in muscular performance

The aim of this study was to determine whether there is an effect of time of day on the adaptation to strength training at maximal effort. Fourteen participants took part in this experiment. Their peak anaerobic power (Wingate anaerobic test) and peak knee extension torque at six angular velocities (1.05, 2.10, 3.14, 4.19, 5.24 and 6.29 rad x s(-1)) were recorded in the morning (between 07:00 and 08:00 h) and in the evening (between 17:00 and 18:00 h) just before and 2 weeks after a 6 week course of regular training. Seven of them trained only in the morning and seven only in the evening. Multivariate analysis of variance revealed a significant group x pre-/post-training x time of day interaction effect for peak torque and peak anaerobic power. Before training, in both groups, peak torque and peak anaerobic power were significantly higher in the evening than in the morning. After training, there was no significant difference in peak torque and peak anaerobic power between the morning and the evening for the morning training group. In contrast, in the evening training group, peak torque and peak anaerobic power were higher in the evening than in the morning. As a result of training, both peak torque and peak anaerobic power increased from their initial values as expected. The morning training group improved their peak anaerobic power significantly in the morning and in the evening, the absolute increase being larger in the morning than in the evening. The evening training group did not improve their peak anaerobic power in the morning, whereas it improved significantly in the evening. Although peak torque was significantly improved by training in the morning and evening in both groups, the absolute increase was greater in the morning than in the evening in the morning training group, whereas the opposite was the case for the evening training group. These results suggest that training twice a week at a specific hour increases the peak torque and the peak anaerobic power specifically at this hour and demonstrates that there is a temporal specificity to strength training.     

Development of Working Memory from Grade 3 to 5: Differences between Children With and Without Mathematical Learning Difficulties

Based on the finding that children with mathematical learning difficulties (MLD) have deficits in working memory (WM), the question arises as to whether these children differ from typical learners only in the level or also in the developmental trajectories of WM functioning. To this end, the WM of 80 children with MLD and 71 typical learners was assessed longitudinally from third to fifth grade. Typical learners outperformed children with MLD in the phonological, visuospatial and central executive WM functioning in third grade. Latent change analyses indicated that both phonological and central executive WM functioning developed in a parallel pattern in children with MLD and in typical learners. In contrast, visuospatial WM functioning revealed a different development in children with and without MLD since the gap between both groups decreased over time. Overall, despite starting at a lower level, the WM functioning in children with MLD did not develop more slowly.     

Multi-user Motion JPEG2000 over wireless LAN: run-time performance-energy optimization with application-aware cross-layer scheduling

This paper introduces a video application-aware cross-layer framework for joint performance-energy optimization, considering the scenario of multiple users upstreaming real-time Motion JPEG2000 video streams to the access point of a WiFi wireless local area network and extends the PHY-MAC run-time cross-layer scheduling strategy that we introduced in (Mang-haram et al., 2005; Pollin el al., 2005) to also consider congested network situations where video packets have to be dropped. We show that an optimal solution at PHY-MAC level can be highly suboptimal at application level, and then show that making the cross-layer framework application-aware through a prioritized dropping policy capitalizing on the inherent scalability of Motion JPEG2000 video streams leads to drastic average video quality improvements and inter-user quality variation reductions of as much as 10 dB PSNR, without affecting the overall energy consumption requirements.     

Lifelong learning characteristics,adjustment and extra-role performance in cooperative education

Many organisations hire students from cooperative education (co-op) programmes. These organisations are interested in students’ performance, particularly in their extra-role performance. Previous studies show that socialisation processes play an important part in establishing adjustment and performance. It may also be the case that students’ approach to learning (their motivations, attitudes and strategies) influences the socialisation process, and consequently adjustment and performance. The purpose of this study was to examine the influence of co-op students’ lifelong learning characteristics on two organisational socialisation outcomes (role understanding and social acceptance) and three types of extra-role performance (proactive, adaptive and prosocial). Data were collected from a cross-sectional survey of undergraduates (n = 1698) enrolled in co-op who had just completed a work term in a new role. Regression analyses showed that lifelong learning characteristics influenced both forms of adjustment, and all three forms of performance. Further mediation analyses showed that both forms of adjustment partially mediated the relationships between lifelong learning and all three forms of performance. These results suggest that co-op students’ lifelong learning characteristics play an important role during organisational socialisation and subsequent extra-role performance. Implications for future research and for practice are discussed.     

Effects of regular training at the same time of day on diurnal fluctuations in muscular performance

The aim of this study was to determine whether there is an effect of time of day on the adaptation to strength training at maximal effort. Fourteen participants took part in this experiment. Their peak anaerobic power (Wingate anaerobic test) and peak knee extension torque at six angular velocities (1.05, 2.10, 3.14, 4.19, 5.24 and 6.29 rad · s -1 ) were recorded in the morning (between 07:00 and 08:00 h) and in the evening (between 17:00 and 18:00 h) just before and 2 weeks after a 6 week course of regular training. Seven of them trained only in the morning and seven only in the evening. Multivariate analysis of variance revealed a significant group 2 pre-/post-training 2 time of day interaction effect for peak torque and peak anaerobic power. Before training, in both groups, peak torque and peak anaerobic power were significantly higher in the evening than in the morning. After training, there was no significant difference in peak torque and peak anaerobic power between the morning and the evening for the morning training group. In contrast, in the evening training group, peak torque and peak anaerobic power were higher in the evening than in the morning. As a result of training, both peak torque and peak anaerobic power increased from their initial values as expected. The morning training group improved their peak anaerobic power significantly in the morning and in the evening, the absolute increase being larger in the morning than in the evening. The evening training group did not improve their peak anaerobic power in the morning, whereas it improved significantly in the evening. Although peak torque was significantly improved by training in the morning and evening in both groups, the absolute increase was greater in the morning than in the evening in the morning training group, whereas the opposite was the case for the evening training group. These results suggest that training twice a week at a specific hour increases the peak torque and the peak anaerobic power specifically at this hour and demonstrates that there is a temporal specificity to strength training.     

Transforming clinical imaging data for virtual reality learning objects

Advances in anatomical informatics, three‐dimensional (3D) modeling, and virtual reality (VR) methods have made computer‐based structural visualization a practical tool for education. In this article, the authors describe streamlined methods for producing VR “learning objects,” standardized interactive software modules for anatomical sciences education, from newer high‐resolution clinical imaging systems data. The key program is OsiriX, a free radiological image processing workstation software capable of directly reformatting and rendering volumetric 3D images. The transformed image arrays are then directly loaded into a commercial VR program to produce a variety of learning objects. Multiple types or “dimensions” of anatomical information can be embedded in these objects to provide different kinds of functions, including interactive atlases, examination questions, and complex, multistructure presentations. The use of clinical imaging data and workstation software speeds up the production of VR simulations, compared with reconstruction‐based modeling from segmented cadaver cross‐sections, while providing useful examples of normal structural variation and pathological anatomy. Anat Sci Ed 1:50–55, 2008. © 2008 American Association of Anatomists.