A Seven-Year Plan of Support for Students in Teacher Education Programs     

Dawson R. Hancock 《Performance Improvement》1997,36(2):37-39

  相似文献   

Using Wikis to Collaboratively Prepare for Qualifying Examinations:     

Joseph C. DiPietro  Wendy Drexler  Kathryn Kennedy  Vasa Buraphadeja  Feng Liu  Kara Dawson 《TechTrends》2010,54(1):25-32

This article focuses on the experiences of seven Ph.D. students implementing a wiki to collaboratively prepare for qualifying examinations in the educational technology program at a large southeastern university. Concomitant study for such a rigorous examination is rare, and the trials and tribulations of the group are described in detail. Specific guidelines highlighting effective preparation options for qualifying exams are often elusive, and, as such, this article explores current research related to collaborative preparation and mentoring, as well as the qualifying examination process in total, in hopes of adding to the scientific body of knowledge related to these subjects. It also offers best practice strategies, suggests possible technology tips regarding wiki implementation, and seeks to better scaffold future scholars and/or mentors seeking to effectively participate in or plan for collaborative qualifying examination preparation.  相似文献   

Moral spaces,the struggle for an intergenerational environmental ethics and the social ecology of families: an ‘other’ form of environmental education   总被引：3，自引：3，他引：0  

Phillip G. Payne 《Environmental Education Research》2010,16(2):209-231

‘Green families’ in Australia were studied so as to shed light on how a more durable, everyday environmental ethic and ecopolitic might slowly be enacted in the intimacy of the home ‘place’ over an extended period of time in rapidly changing socio‐cultural‐ecological conditions. Of particular interest to this study of the green household, or postmodern oikos, was how its proximal ‘moral spaces’ have been nurtured intergenerationally by family members from within the broader global climate of what Zygmunt Bauman refers to as the ‘moral lag’ of postmodernity. Three layers of interpretive findings about the social ecology and family dynamics of this oikos are presented in an effort to provide detailed understandings about families’ eco being, dwelling and becoming. Implications for education for the environment can be gleaned from the ‘best’ ecopedagogical practices found in the home that are ‘other’ than those occurring in the formal education sector. This study adds to the theorizations of ‘social ecology’, ‘experiential education’, ‘ecopedagogy’ and, more generally, the notion of an everyday ‘ecocentrism’, while providing some clues for how environmental education in schools might mirror pedagogical aspects of the postmodern oikos.  相似文献   

Setting expectations for educational innovations     

Phillip A. Towndrow  Rita E. Silver  James Albright 《Journal of Educational Change》2010,11(4):425-455

  相似文献   

Science Teachers’ Professional Development and Changes in Science Practical Assessment Practices: What are the Issues?   总被引：1，自引：0，他引：1  

Phillip A. Towndrow  Aik-Ling Tan  Benny H. W. Yung  Libby Cohen 《Research in Science Education》2010,40(2):117-132

This paper considers the circumstances under which science teachers can respond positively and productively to educational policy reforms in the area of science practical assessment. To understand what might be involved in linking science teachers’ assessment capacities and their professional development, we present illustrative data from recent research studies conducted in Singapore and Hong Kong showing contrasting approaches taken in the implementation of reforms in science practical assessment. In Singapore, teachers worked together to select, discuss, clarify and refine their practices as they made decisions about what to teach and assess. In Hong Kong, teachers took a critical stance towards the new policy and learnt from their own experiences in order to build their confidence. With the same policy initiative, one group of teachers focused more on the technicalities of complying with requirements imposed on them while in the other group had their professional consciousness of what they thought was best for their students provoked so that their practices would be transformed. In an attempt to draw lessons for other contexts in supporting the implementation of assessment policy reforms through professional development work, we identify and discuss a range of factors in science teachers’ professional development that arise once in situ professional development work has started. Overall, our intent in this article is to recast assessment reform as a driver or pivot in teachers’ professional development and learning. To do this it is necessary, we argue, to afford teachers’ experiences and the processes involved in learning from them greater emphasis in order to ensure the continuance of innovation in the assessment of laboratory-based work.  相似文献   

Can changes in resistance exercise workload influence internal load,countermovement jump performance and the endocrine response?     

Daniel J Hiscock  Brian Dawson  Michael Clarke  Peter Peeling 《Journal of sports sciences》2018,36(2):191-197

This study examined the influence of differing volume load and intensity (%1 repetition maximum[%1RM]) resistance exercise workouts on session rating of perceived exertion (sRPE) countermovement jump (CMJ) performance and endocrine responses. Twelve participants performed a workout comprising four exercises (bench press, back squat, deadlift and prone bench pull) in randomised order as either power (POW); 3 sets × 6 repetitions at 45%1RM × 3 min inter-set rest, strength (ST); 3 sets × 3 repetitions at 90%1RM × 3 min inter-set rest, or hypertrophy (HYP); 3 sets × 10 repetitions at 70%1RM × 1 min inter-set rest in a randomised-crossover design. CMJ performance and endocrine responses were measured immediately pre-, post-, 12, 24, 48 and 72 h post-exercise. POW sRPE (3.0 ± 1.0) was lower than ST (4.5 ± 1.0) (P = 0.01), and both were lower than HYP (8.5 ± 1.0) (P = 0.01). Duration of CMJ decrement was longer (P ≤ 0.05) for HYP (72 h) compared to POW (12 h) and ST (24 h). Testosterone concentration was greater (P ≤ 0.05) immediately post-exercise in HYP compared to POW and ST. In conclusion, less inter-set rest, greater volume load and intensity (%1RM) may increase sRPE, duration of CMJ performance decrement and testosterone responses in resistance exercise.  相似文献   

Workload and non-contact injury incidence in elite football players competing in European leagues     

Barthelemy Delecroix  Alan McCall  Brian Dawson  Serge Berthoin 《European Journal of Sport Science》2018,18(9):1280-1287

Purpose: The aim of this study was to analyse the relationship between absolute and acute:chronic workload ratios and non-contact injury incidence in professional football players and to assess their predictive ability. Methods: Elite football players (n?=?130) from five teams competing in European domestic and confederation level competitions were followed during one full competitive season. Non-contact injuries were recorded and using session rate of perceived exertion (s-RPE) internal absolute workload and acute:chronic (A:C) workload ratios (4-weeks, 3-weeks, 2-weeks and week-to-week) were calculated using a rolling days method. Results: The relative risk (RR) of non-contact injury was increased (RR?=?1.59, CI95%: 1.18–2.15) when a cumulative 4-week absolute workload was greater than 10629 arbitrary units (AU) in comparison with a workload between 3745 and 10628?AU. When the 3-week absolute workload was more than 8319?AU versus between 2822 and 8318?AU injury risk was also increased (RR=?1.46, CI95% 1.08–1.98). Injury incidence was higher when the 4-week A:C ratio was <0.85 versus >0.85 (RR?=?1.31, CI95%: 1.02–1.70) and with a 3-week A:C ratio >1.30 versus <1.30 (RR?=?1.37, CI95%: 1.05–1.77). Importantly, none of the A:C workload combinations showed high sensitivity or specificity. Conclusions: In elite European footballers, using internal workload (sRPE) revealed that cumulative workloads over 3 and 4 weeks were associated with injury incidence. Additionally, A:C workloads, using combinations of 2, 3 and 4 weeks as the C workloads were also associated with increased injury risk. No A:C workload combination was appropriate to predict injury.  相似文献   

Dietary nitrate supplementation does not improve cycling time-trial performance in the heat     

Georgina L. Kent  Brian Dawson  Gregory R. Cox  Louise M. Burke  Annette Eastwood  Kevin D. Croft 《Journal of sports sciences》2018,36(11):1204-1211

This investigation examined the effect of beetroot juice (BR) supplementation, a source of dietary nitrate (NO₃^?), on cycling time-trial (TT) performance and thermoregulation in the heat. In a double-blind, repeated-measures design, 12 male cyclists (age 26.6 ± 4.4 years, VO_2peak 65.8 ± 5.5 mL.kg^?1.min^?1) completed four cycling TTs (14 kJ.kg^?1) in hot (35°C, 48% relative humidity) and euthermic (21°C, 52%) conditions, following 3 days supplementation with BR (6.5 mmol NO₃^? for 2 days and 13 mmol NO₃^? on the final day), or NO₃^–depleted placebo (PLA). Salivary NO₃^? and nitrite, core (T_c) and mean skin temperature (T_sk) were measured. Salivary NO₃^? and nitrite increased significantly post-BR supplementation (p < 0.001). Average TT completion time (mm:ss) in hot conditions was 56:50 ± 05:08 with BR, compared with 58:30 ± 04:48 with PLA (p = 0.178). In euthermic conditions, average completion time was 53:09 ± 04:35 with BR, compared with 54:01 ± 04:05 with PLA (p = 0.380). The TT performance decreased (p < 0.001), and T_c (p < 0.001) and T_sk (p < 0.001) were higher in hot compared with euthermic conditions. In summary, BR supplementation has no significant effect on cycling TT performance in the heat.  相似文献   

Time–motion analysis of elite field hockey,with special reference to repeated-sprint activity     

Matt Spencer  Steven Lawrence  Claire Rechichi  David Bishop  Brian Dawson  Carmel Goodman 《Journal of sports sciences》2013,31(9):843-850

Limited information exists about the movement patterns of field-hockey players, especially during elite competition. Time–motion analysis was used to document the movement patterns during an international field-hockey game. In addition, the movement patterns of repeated-sprint activity were investigated, as repeated-sprint ability is considered to be an important fitness component of team-sport performance. Fourteen members of the Australian men's field-hockey team (age 26±3 years, body mass 76.7±5.6?kg, [Vdot]O_2max 57.9±3.6?ml?·?kg^?1?·?min^?1; mean±s) were filmed during an international game and their movement patterns were analysed. The majority of the total player game time was spent in the low-intensity motions of walking, jogging and standing (46.5±8.1, 40.5±7.0 and 7.4±0.9%, respectively). In comparison, the proportions of time spent in striding and sprinting were 4.1±1.1 and 1.5±0.6%, respectively. Our criteria for ‘repeated-sprint’ activity (defined as a minimum of three sprints, with mean recovery duration between sprints of less than 21?s) was met on 17 occasions during the game (total for all players), with a mean 4±1 sprints per bout. On average, 95% of the recovery during the repeated-sprint bouts was of an active nature. In summary, the results suggest that the motion activities of an elite field-hockey competition are similar to those of elite soccer, rugby and Australian Rules football. In addition, the investigation of repeated-sprint activity during competition has provided additional information about the unique physiological demands of elite field-hockey performance.  相似文献   

The Relation of Mild Traumatic Brain Injury to Chronic Lapses of Attention     

Matthew B. Pontifex  Steven P. Broglio  Eric S. Drollette  Mark R. Scudder  Chris R. Johnson  Phillip M. Oapos;Connor 《Research quarterly for exercise and sport》2013,84(4):553-559

We assessed the extent to which failures in sustained attention were associated with chronic mild traumatic brain injury (mTBI) deficits in cognitive control among college-age young adults with and without a history of sport-related concussion. Participants completed the ImPACT computer-based assessment and a modified flanker task. Results indicated that a history of mTBI, relative to healthy controls, was associated with inferior overall flanker task performance with a greater number of omission errors and more frequent sequentially occurring omission errors. Accordingly, these findings suggest that failures in the ability to maintain attentional vigilance may, in part, underlie mTBI-related cognition deficits.  相似文献