A prospective examination of the impact of high levels of exercise training on sedentary behaviour     

Ann M. Swartz  Nora E. Miller  Young IK Cho  Whitney A. Welch  Scott J. Strath 《European Journal of Sport Science》2017,17(2):222-230

The aim of this study is to determine changes in sedentary behaviour in response to extensive aerobic exercise training. Participants included adults who self-selected to run a marathon. Sedentary behaviour, total activity counts and physical activity (PA) intensity were assessed (Actigraph GT3X) for seven consecutive days during seven assessment periods (?3, ?2, and ?1 month prior to the marathon, within 2 weeks of the marathon, and +1, +2, and +3 months after the marathon). Models were fitted with multiple imputation data using the STATA mi module. Random intercept generalized least squares (GLS) regression models were used to determine change in sedentary behaviour with seven waves of repeated measures. Results: Twenty-three individuals (mean?±?S_x: 34.4?±?2.1y, 23.0?±?1.9% fat, 15 women, 8 men) completed the study. Marathon finishing times ranged from 185 to 344 minutes (253.2?±?9.6 minutes). Total counts in the vertical axis were 1,729,414 lower one month after the race, compared with two months prior to the race (peak training). Furthermore, counts per minute decreased by 252.7 counts·minute^?1 during that same time period. Daily sedentary behaviour did not change over the seven assessment periods, after accounting for age, gender, per cent body fat, wear time, marathon finishing time, and previous marathon experience. This prospective study supports the notion that PA and sedentary behaviours are distinct, showing that sedentary behaviour was not impacted by high levels of aerobic training.  相似文献   

Education by ‘correspondence’     

Greg Wall 《Distance Education》1987,8(2):259-261

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Cumulative stress and substantiated maltreatment: the importance of caregiver vulnerability and adult partner violence   总被引：1，自引：0，他引：1  

Wekerle C  Wall AM  Leung E  Trocmé N 《Child abuse & neglect》2007,31(4):427-443

OBJECTIVE: Our goal is to assess the effect of caregiver vulnerabilities, singly and in combination, on the substantiation of child abuse (physical, sexual) and neglect, while controlling for relevant background variables. We test the moderator role of adult partner violence in qualifying the relationship between caregiver vulnerabilities and maltreatment substantiation. METHOD: Secondary analyses of the 1998 Canadian Incidence Study of Reported Child Maltreatment (CIS) are used to predict child protective service investigation substantiation versus non-substantiation from a range of caregiver vulnerability factors. Involvement in partner violence was examined as a moderator in the relation between caregiver vulnerabilities and maltreatment substantiation. The CIS is an epidemiological survey of first-reported cases to child protective services, using a random sample of child welfare agencies across Canada. Child welfare workers completed a research form on the child, primary caregiver, family, perpetrator, severity and type of maltreatment, as well as services and court outcomes. All maltreatment classifications were assigned according to the Canadian legal definition of child abuse and neglect. Hierarchical logistic regression analyses were used, with stepped entry of: (1) demographic factors, socioeconomic disadvantage, and caregiver's own history of maltreatment; (2) caregiver vulnerability factors; (3) involvement in partner violence; (4) the interaction between caregiver vulnerability and partner violence. RESULTS: Caregiver substance abuse was found to be the single most potent kind of caregiver vulnerability in predicting maltreatment substantiation. When the total number of vulnerabilities was used as the predictor, prediction across all types of maltreatment increased, especially for substantiated neglect. Analyses also showed that the presence of partner violence in the home exacerbated the effect of caregiver vulnerability on substantiation. CONCLUSIONS: The total number of caregiver vulnerabilities was the best predictor of the substantiation of child abuse and neglect. This relationship was moderated by the existence of partner violence: high caregiver vulnerability and high partner violence increased the likelihood of substantiation versus non-substantiation. These results suggest that caregiver issues should be considered in tandem with partner relationships. Among child welfare cases, caregiver vulnerability and partner violence are critical targets for child maltreatment prevention and early child protective services intervention.  相似文献   

Book reviews     

Richard Meister  W. D. Wall  Fritz Bohnsack  B. F. Nel  Helmut Meyer-Bothling  Joseph S. Roucek  F. W. Prins  Hans Möckelmann  H. J. Dallmer 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1961,7(1):112-127

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Flipping the classroom to teach systematic reviews: the development of a continuing education course for librarians     

Marisa L. Conte  Mark P. MacEachern  Nandita S. Mani  Whitney A. Townsend  Judith E. Smith  Chase Masters  Caitlin Kelley 《Journal of the Medical Library Association》2015,103(2):69-73

Objective:The researchers used the flipped classroom model to develop and conduct a systematic review course for librarians.Setting:The research took place at an academic health sciences library.Method:A team of informationists developed and conducted a pilot course. Assessment informed changes to both course components; a second course addressed gaps in the pilot.Conclusion:The flipped classroom model can be successful in developing and implementing a course that is well rated by students.  相似文献   

Transverse strength of chilled car wheel metal as affected by the relative directions of stress and chill.With some notes on the chemistry of cast iron     

Asa W. Whitney 《Journal of The Franklin Institute》1897,143(4):267-278

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Helping the One You Hurt: Toddlers’ Rudimentary Guilt,Shame, and Prosocial Behavior After Harming Another          下载免费PDF全文

Jesse D. K. Drummond  Stuart I. Hammond  Emma Satlof‐Bedrick  Whitney E. Waugh  Celia A. Brownell 《Child development》2017,88(4):1382-1397

This study explored the role of guilt and shame in early prosocial behavior by extending previous findings that guilt‐ and shame‐like responses can be distinguished in toddlers and, for the first time, examining their associations with helping. Toddlers (n = 32; M_age = 28.9 months) were led to believe they broke an adult's toy, after which they exhibited either a guilt‐like response that included frequently confessing their behavior and trying to repair the toy; or a shame‐like response that included frequently avoiding the adult and seldom confessing or attempting to repair the toy. In subsequent prosocial tasks, children showing a guilt‐like response helped an adult in emotional distress significantly faster and more frequently than did children showing a shame‐like response.  相似文献   

Decoding the phonics screening check          下载免费PDF全文

Catherine A. Darnell  Jonathan E. Solity  Helen Wall 《British Educational Research Journal》2017,43(3):505-527

The statutory ‘phonics screening check’ was introduced in 2012 and reflects the current emphasis in England on teaching early reading through systematic synthetic phonics. The check is intended to assess children's phonic abilities and their knowledge of 85 grapheme–phoneme correspondences (GPCs) through decoding 20 real words and 20 pseudo words. Since the national rollout, little attention has been devoted to the content of the checks. The current paper, therefore, reviews the first three years of the check between 2012 and 2014 to examine how the 85 specified GPCs have been assessed and whether children are only using decoding skills to read the words. The analysis found that out of the 85 GPCs considered testable by the check, just 15 GPCs accounted for 67% of all GPC occurrences, with 27 of the 85 specified GPCs (31.8%) not appearing at all. Where a grapheme represented more than one phoneme, the most frequently occurring pronunciation was assessed in 72.2% of cases, with vocabulary knowledge being required to determine the correct pronunciation within real words where multiple pronunciations were possible. The GPCs assessed, therefore, do not reflect the full range of GPCs that it is expected will be taught within a systematic synthetic phonics approach. Furthermore, children's ability to decode real words is dependent on their vocabulary knowledge, not just their phonic skills. These results question the purpose and validity of the phonics screening check and the role of synthetic phonics for teaching early reading.  相似文献   

When homelessness becomes a “luxury”: Neutrality as an obstacle to counterpublic rights claims     

Whitney Gent 《Quarterly Journal of Speech》2017,103(3):230-250

Rhetorical scholars have consistently demonstrated the value of engaging with difference in processes of public deliberation, yet publics still regularly make arguments on the basis of neutrality. Using a case study of advocacy for homeless bills of rights, I employ rhetorical field methods to assess vernacular responses to counterpublic rights claims. By attending to neutrality’s rhetorical force in practice, I examine how it enables publics to deny counterpublic assertions of inequality and obstruct counterpublic rights claims. I argue that neutrality allows publics to deny counterpublics’ needs, define counterpublics’ identities, and disguise their own self-interest. The theory of neutrality I offer here pushes rhetoricians beyond questions of its (un)desirability and (im)possibility to an understanding of how it operates.  相似文献   

Bridging understanding between preservice teachers and diverse students through service-learning     

Carrie R. Giboney Wall 《Teaching Education》2017,28(2):178-193

This study examines the effectiveness of service-learning as a pedagogical approach that seeks to bridge the gap of understanding between predominantly White undergraduate preservice teachers (PSTs) and diverse students at a local elementary school. Analysis of ‘before’ and ‘after’ reflective papers and surveys from 23 PSTs enrolled in an entry-level education course as well as reflective letters from 41 fourth-grade students, revealed that prior to the project, PSTs feared that students’ language barriers or home circumstances might prohibit them from understanding or valuing the concepts introduced through the project. In PST ‘after’ reflections, PSTs expressed their new realizations that teaching is complex and requires careful preparation, that the children were ‘less different’ and more engaged than they expected, and that they can make a difference in children’s lives. Benefits to the children include development of new and usable social skills and an increase in their interpersonal confidence.  相似文献