如何让你的生活井然有序

Feeling the urge to get organized? While a daily to-do list is a proven tool to run your home and schedule, it's also important to abide by a list of not-to-do's, freeing up time for things that matter-family, friends and fun.     

A new jump-landing protocol identifies differences in healthy,coper, and unstable ankles in collegiate athletes

Ankle sprains are the most common injury in sport. With stability being an important risk factor for ankle sprains, a jump-landing protocol that can elicit differences in time-to-stabilisation (TTS) is necessary. The objective of this study was to develop a jump-landing protocol that could identify differences in TTS among healthy, ‘coper’, and unstable ankles of high-level athletes. 61 Division I collegiate athletes (32 females, 29 males; age: 19.9 ± 1.2 years; height: 176.6 ± 9.5 cm; mass: 74.3 ± 10.8 kg) participated in a jump-landing protocol that utilised sporting movements with preparatory steps and a vertical propulsion of the body in two multi-directional jumps. Utilising the landing on a force plate, ground reaction forces were used to quantify TTS. TTS of the unstable group (1.58 ± 0.62s) was significantly longer than the healthy (1.19 ± 0.37s; p = 0.050) and ‘coper’ (1.13 ± 0.49s; p = 0.019) groups in the forward hops. In addition, TTS of the lateral hops in the unstable group (1.55 ± 0.63s) was also significantly longer than the healthy (1.14 ± 0.37s; p = 0.026) and ‘coper’ (1.15 ± 0.39s; p = 0.028) groups. This new jump-landing protocol was able to elicit differences in TTS in high-level athletes that were not found using previous protocols. This new jump-landing protocol could be an effective tool to identify injury risk for high-level athletes.     

Creating a model to examine motivation for sustained engagement in online communities

This paper considers factors that influenced long-term engagement in an online community. It draws on a case study of a 6 year online collaboration amongst a group of European teachers. The email interchange between these teachers was, with their agreement, saved and used as research data; intensive group interviews were also conducted, involving all the participants in the online group. Dynamic motivation models and Csikszentmihalyi’s concept of motivational flow were used to create a theoretical framework to analyse the email interchanges and group interview data so as to build an understanding of the teachers’ commitment to the online community. As a result of the analysis, the existing theoretical models were modified to produce a new combined model. This incorporates ideas grounded in the participants’ reasons for their sustained engagement in the collaboration. This combined model could provide a basis for planning future virtual interactions and for assessing their sustainability.     

Computational auditory scene analysis: listening to several things at once

The problem of distinguishing particular sounds, such as conversation, against a background of irrelevant noise is a matter of common experience. Psychologists have studied it for some 40 years, but is is only comparatively recently that computer modelling of the phenomenon has been attempted. This article reviews progress made, possible practical applications, and prospects for the future.     

Common misconceptions of suspension: Ideas and alternatives for school leaders

The use of exclusionary discipline practices in schools has been well documented since the 1970s with the passing of the Safe Schools Act and implementation of zero‐tolerance policies. Despite research indicating the ineffectiveness of exclusionary practices, students continue to receive suspensions and expulsions at alarming rates. Additional research highlights that there may be misconceptions regarding the application of suspensions and their perceived functions and effectiveness on students and their families. The purpose of this article is to discuss common misconceptions regarding the effects of suspension and provide teachers, school psychologists, and administrators with proactive strategies for implementation in local systems to create positive school climates and optimize successful outcomes for all students and staff.