直击Adobe PageMaker7.0

Adobe公司揭开了PageMaker 7.0的面纱,它与最新的Macintosh和Windows操作系统兼容,能够打开Microsoft Publisher和QuarkXPress格式文件,并可以导入Microsoft Word文件,Acrobat Distiller的升级版本可以生成更加压缩的PDF文件,其他的一些修正功能使用户可以制作更加可     

揭秘水下终结者

发身无人驾驶侦察机，搭载运送海豹突击队员的微型潜艇，窃取海底光缆数据——21世纪最新，最先进的间谍潜艇已经浮出水面。[编者按]     

Improving Students' Learning by Developing their Understanding of Assessment Criteria and Processes

This paper reports the findings of a two-year research project focused on developing students' understanding of assessment criteria and the assessment process through a structured intervention involving both tacit and explicit knowledge transfer methods. The nature of the intervention is explained in detail, and the outcomes are analysed and discussed. The conclusions drawn from the evidence are that student learning can be improved significantly through such an intervention, and that this improvement may last over time and be transferable, at least within similar contexts. This work is a development within a longer and ongoing research project into criterion-referenced assessment tools and processes which has been undertaken in the pursuit of a conceptually sound and functional assessment framework that would promote and encourage common standards of assessment; that project is also summarised.     

Comparing England,Scotland, Wales and Northern Ireland: The case for 'home internationals' in comparative research

The differences among the four education systems of the UK are often perceived as a nuisance by comparative researchers. This paper argues that they are also an opportunity. It describes the four systems and summarises their similarities and differences. It then presents five reasons for giving 'home international' comparisons a more prominent role in comparative research. These are, respectively: their potential contribution to theoretical debates; specific differences among the four systems, which touch on core problems of educational research; the practical value of home international comparisons; their potential for policy learning; and the relative ease of conducting them.     

The influence of a 6.5% carbohydrate-electrolyte solution on performance of prolonged intermittent high-intensity running at 30°C

Nine male student games players consumed either flavoured water (0.1 g carbohydrate, Na⁺ 6 mmol · l^?1), a solution containing 6.5% carbohydrate-electrolytes (6.5 g carbohydrate, Na⁺ 21 mmol · l^?1) or a taste placebo (Na⁺ 2 mmol · l^?1) during an intermittent shuttle test performed on three separate occasions at an ambient temperature of 30°C (dry bulb). The test involved five 15-min sets of repeated cycles of walking and variable speed running, each separated by a 4-min rest (part A of the test), followed by 60 s run/60 s rest until exhaustion (part B of the test). The participants drank 6.5 ml · kg^?1 of fluid as a bolus just before exercise and thereafter 4.5 ml · kg^?1 during every exercise set and rest period (19 min). There was a trial order effect. The total distance completed by the participants was greater in trial 3 (8441 ± 873 m) than in trial 1 (6839 ± 512, P < 0.05). This represented a 19% improvement in exercise capacity. However, the trials were performed in a random counterbalanced order and the participants completed 8634 ± 653 m, 7786 ± 741 m and 7099 ± 647 m in the flavoured water (FW), placebo (P) and carbohydrate-electrolyte (CE) trials, respectively (P = 0.08). Sprint performance was not different between the trials but was impaired over time (FW vs P vs CE: set 1, 2.41 ± 0.02 vs 2.39 ± 0.03 vs 2.39 ± 0.03 s; end set, 2.46 ± 0.03 vs 2.47 ± 0.03 vs 2.47 ± 0.02 s; main

effect time, P < 0.01). The rate of rise in rectal temperature was greater in the carbohydrate-electrolyte trial (rise in rectal temperature/duration of trial, °C · h^?1; FW vs CE, P < 0.05; P vs CE, N.S.). Blood glucose concentrations were higher in the carbohydrate-electrolyte than in the other two trials (FW vs P vs CE: rest, 4.4 ± 0.1 vs 4.3 ± 0.1 vs 4.2 ± 0.1 mmol · l^?1; end of exercise, 5.4 ± 0.3 vs 6.4 ± 0.6 vs 7.2 ± 0.5 mmol · l^?1; main effect trial, P < 0.05; main effect time, P < 0.01). Plasma free fatty acid concentrations at the end of exercise were lower in the carbohydrate-electrolyte trial than in the other two trials (FW vs P vs CE: 0.57 ± 0.08 vs 0.53 ± 0.11 vs 0.29 ± 0.04 mmol · l^?1; interaction, P < 0.01). The correlation between the rate of rise in rectal temperature (°C · h^?1) and the distance completed was ?0.91, ?0.92 and ?0.96 in the flavoured water, placebo and carbohydrate-electrolyte conditions, respectively (P < 0.01). Heart rate, blood pressure, plasma ammonia, blood lactate, plasma volume and rate of perceived exertion were not different between the three fluid trials. Although drinking the carbohydrate-electrolyte solution induced greater metabolic changes than the flavoured water and placebo solutions, it is unlikely that in these unacclimated males carbohydrate availability was a limiting factor in the performance of intermittent running in hot environmental conditions.