有缺憾方显珍贵

你是否花费时间为"自我完善"而忙碌、而忧虑?如果是这样,可要注意,不要为了随处可见的"完美"而扼杀了自己的个性.用下面这个故事证明我的观点. 　　……     

Sexuality in school: the limits of education

This paper reports on aspects of an Australian study into the factors and conditions that make it possible for secondary school health education teachers to include and affirm gender and sexual diversity in their teaching. The study examined the impact of a two-day intervention designed to prepare teachers to use a major new government-funded teaching and learning resource called Talking Sexual Health. The study found that whilst there was a range of personal and structural barriers inhibiting change, professional development and access to teaching and learning resources could indeed impact positively on teachers’ willingness and ability to include and affirm diverse sexualities in their health education programs.     

Getting mobile right: start with who and why,not what and how

Mobile dominance is imminent. Getting mobile wrong means losing market share to disruptors; getting it right gives us an opportunity to rebuild relationships with our audience. It is the audience, therefore, that should direct mobile strategy. This means starting by researching the workflows and challenges of different segments, to understand how to add value (not just bells‐and‐whistles). We must prioritize mobile in our product development and innovation, freeing it from the ‘print + online’ paradigm so that it can fulfil different kinds of information needs and objectives. This article advocates a back‐to‐basics approach that puts audiences (not content, and not technology) at the centre of mobile strategy, and explores market segmentation and research, innovation, business models, development choices, and the wider organizational implications of getting mobile right.     

Estimates of the number of people in England who attain or exceed vigorous intensity exercise by walking at 3 mph

Abstract

Walking is a safe, accessible and low cost activity, amenable to change and known to have great potential to increase physical activity levels in sedentary individuals. The objective of this study is to estimate the proportion of the 2009 adult population of England who would attain or exceed vigorous intensity activity (>70% maximum heart rate [HR_max]) by walking at 3 mph. We conducted predictive impact modelling using participants' (n = 1741, aged 25–64 years) cardiovascular fitness data from treadmill walking tests. We combined this data with English population estimates adjusted for age and sex to estimate the numbers of individuals that would exceed 70% HR_max (an intensity considered sufficient for fitness gains) when walking at 3 mph (4.8 km · h^?1). We estimate 1.5 million men (95% confidence interval [CI] 0.9–2.2 million) (from 13.4 million corresponding to 11.6% (95% CI 7.0–16.2%)) and 3.9 million women (95% CI 3.0–4.8 million) (from 13.6 million corresponding to 28.6% (95% CI 22.0–35.1%)) in England aged 25–64 years would benefit from regularly walking at 3 mph. In total, a projected 5.4 million individuals (95% CI 3.9–6.9 million) aged 25–64 (from 26.97 million corresponding to 20.1% (95% CI 14.6–25.7%)) could benefit from walking at 3 mph. Our estimates suggest a considerable number of individuals in the English population could receive fitness and health benefits by walking regularly at 3 mph. Physical activity messages that promote walking at this speed may therefore have the potential to significantly impact national fitness levels and health in England.     

Cross‐media response to digital manipulation of still and moving images

This investigation provides survey data for a cross‐media comparison between newspaper photo editors and television news directors to assess the ethical response to digital image processing and enhancement technology. The results indicate that television news directors tend toward less strict ethical standards in application of the technology. However, the television people showed more sensitivity to aspects of the technology that relate to long‐standing themes of TV critics.     

Double the Units: How Increasing the Number of Advertisements while Keeping the Overall Duration of Commercial Breaks Constant Affects Radio Listeners

Recently, a major radio station ownership group pressured the advertising industry to transition the accepted unit of advertising from the 60-second commercial to 30-second spots. This transition shows signs of being successful, and it is now possible for stations to play twice as many individual ad units while keeping the overall duration of commercial breaks constant. This within-subjects experiment tests the effects of such a circumstance on variables including listener cognitive effort, arousal, attitudes, and memory. Results suggest that breaks with more ad units lead to cognitive disengagement, increased duration estimates for the ad breaks, and more negative attitudes compared to ad breaks with fewer units.     

Radio's Clutter Conundrum: Better Memory for Ads,Worse Attitudes Toward Stations

An experiment examined effects of increasing the number of advertising pods in radio. With the number of commercials kept constant, participants heard ads in 1 or 3 pods. Those exposed to the cluttered condition (i.e., 3 pods) reported the ads as more excessive and the commercial breaks more disruptive than those exposed to 1 pod. Clutter participants self-reported greater irritation than those hearing only 1 pod. This was supported by more frequent skin conductance responses in the clutter condition. However, other physiological measures suggested more cognitive resources were applied during the cluttered condition. Free recall and recognition were greater in the cluttered condition, although the latter not significantly so. Results are discussed in terms of the trade-offs management must make in deciding how to schedule advertising breaks in today's competitive radio marketplace.     

The double-edged sword: Critical reflections on traditional and modern technology in outdoor education

The outdoor education experience continues to be influenced by a proliferation of modern technological innovations, most of which have been accepted and even embraced by educators with little inquiry. Seldom do instructors of outdoor programmes consider the impact that modern techniques and equipment can have upon students' learning. This paper argues that in an unexamined adoption of this technology, some of the potential positive impacts for participants can be compromised, including a direct and meaningful connection to the natural world. As such, modern technology has become a possible mediating influence for participants in outdoor education programmes. The paper examines some of the pedagogical issues of modern technology as a mediator of experience as well as several elements of educating in the outdoors with traditional technology. Woven into the discussion is the question of whether modern technology encourages more people to become involved in outdoor activities or merely works toward the separation of humans from the rest of nature.