The effects of 15 min and 30 min of exercise on affective responses both during and after exercise     

Amanda J Daley  Amy Welch 《Journal of sports sciences》2013,31(7):621-628

Although much research has examined the relationship between exercise and affect, few studies have considered the effects of exercise bouts of different durations and few researchers have questioned the longer term effects that might be associated with acute exercise. The aim of this study was to compare the effects of the standard health recommended exercise duration of 30?min with a shorter (15?min) bout of exercise upon individuals' affect scores both during and after exercise. Twenty-three (mean age 22.4 years) physically active participants engaged in two counterbalanced cycle ergometer exercise conditions for 15?min (short bout) and 30?min (moderate bout). The participants completed the Subjective Exercise Experience Scale before, during, 5?min, 30 mins, 1?h and 2?h after both exercise conditions. A series of 2 × 6 within-participant repeated-measures analyses of variance for positive well-being (P?<0.01), psychological distress (P?<0.01) and fatigue (P?<0.01) scores revealed significant time main effects, with improved scores over time. No significant differences were noted between the 15-min and 30-min exercise bouts. These results indicate that positive affective responses are experienced by exercisers after relatively short bouts of acute exercise and these effects can still be evident some time later.  相似文献   

Preservice teachers' coping styles and their responses to bullying     

Jeffrey H. Kahn  Jayme L. Jones  Amy L. Wieland 《Psychology in the schools》2012,49(8):784-793

The literature suggests that teacher responses to bullying are a function of the type of aggression (overt vs. relational), the gender of the children involved, and characteristics of the teacher. We extended the literature by examining teachers' dispositional coping styles as a predictor of their responses to bullying. Preservice teachers (N = 97) completed a measure of coping styles and then responded to eight vignettes showing overt or relational aggression occurring among boys or girls. Overt aggression was viewed as a bigger problem than relational aggression, and teacher interventions were deemed more necessary for overt than relational aggression. Preservice teachers who typically use more active coping, less denial coping, and less self‐blame responded more actively to bullying, especially in response to relational aggression among boys. These findings point to the need to consider teacher coping styles when working with them to intervene effectively in responding to bullying. © 2012 Wiley Periodicals, Inc.  相似文献   

Leveraging learning technologies for collaborative writing in an online pharmacotherapy course     

Amy L. Pittenger  Becky Olson-Kellogg 《Distance Education》2012,33(1):61-80

The purpose of this project was to evaluate the development and delivery of a hypertext case scenario document to be used as the capstone assessment tool for doctoral-level physical therapy students. The integration of Web-based collaborative tools (PBworks? and Google Sites?) allowed students in this all-online course to apply their pharmacotherapy knowledge in a physical therapy patient scenario, while working with colleagues to determine the best route of patient care. Students developed digital writing skills imperative to a patient-centered, collaborative health-care field, and practiced evidence-based patient care. The findings demonstrate that the implementation of collaborative digital writing with a hypertext document case scenario assessment as the primary assessment tool in this online pharmacotherapy course delivered to doctoral-level physical therapy students is a feasible and effective educational strategy.  相似文献   

Maternal work conditions and child development     

Christina Felfe  Amy Hsin 《Economics of Education Review》2012

How do maternal work conditions, such as psychological stress and physical hazards, affect children's development? Combining data from the Child Development Supplement of the Panel Study of Income Dynamics and the Occupational Information Network allows us to shed some light on this question. We employ various techniques including OLS with extensive controls, a value added approach and individual fixed effects in order to address potential endogeneity problems. Our results reveal that mothers’ exposure to work-related hazards negatively affects children's cognitive development and to work-related stress negatively affects children's behavioral development. While maternal time investments play a small but significant role in mediating these negative associations, paternal time investments neither reinforce nor compensate these associations.  相似文献   

Students’ distributive reasoning with fractions and unknowns     

Amy J. Hackenberg  Mi Yeon Lee 《Educational Studies in Mathematics》2016,92(2):245-278

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Serials Data in the Data Age: Project CERES Data for Digitization and Print Preservation     

Amy Wood 《期刊图书馆员》2016,70(1-4):158-167

The report summarizes a presentation given at the 2015 NASIG conference. It outlines metadata used by Project CERES, a print preservation and digitization project supported by a partnership between the United States Agriculture Information Network and the Center for Research Libraries. It also outlines metadata guidelines used to disclose print holdings committed for preservation and provides tips on creating efficiencies in gathering the detailed issue level data and providing quality assurance for digitization. Gathering detailed metadata to support the preservation of print is an investment in the preservation of essential scholarly resources. Project CERES can be used as a model for other programs coupling preservation and digitization.  相似文献   

Demographics of scholarly publishing and communication professionals          下载免费PDF全文

Albert N. Greco  Robert M. Wharton  Amy Brand 《Learned Publishing》2016,29(2):97-101

Scholarly publishing plays a pivotal role in the dissemination of research. While a great deal is known about the companies active in this sector, we need to know more about the employees of the firms that edit, produce, market, and distribute today's scholarly books and journals. To achieve this goal, the researchers conducted an international survey in late 2014 and early 2015 of approximately 6,121 scholarly publishing employees in 33 nations. The researchers received 828 usable questionnaires. Some of the substantive findings about the respondents include: 90.79% identified themselves as white; 85.07% worked in scholarly publishing for more than 5 years; 60% held graduate or professional degrees; and 49% worked in editorial departments. Key suggestions include the need for annual surveys of this type and that the majority of scholarly publishing firms need to address the issue of diversity.  相似文献   

Early social communication development in infants with autism spectrum disorder     

Jessica Bradshaw  Courtney McCracken  Moira Pileggi  Natalie Brane  Abigail Delehanty  Taylor Day  Alexis Federico  Cheryl Klaiman  Celine Saulnier  Ami Klin  Amy Wetherby 《Child development》2021,92(6):2224-2234

Social-communication differences are a robust and defining feature of autism spectrum disorder (ASD) but identifying early points of divergence in infancy has been a challenge. The current study examines social communication in 9- to 12-month-old infants who develop ASD (N = 30; 23% female; 70% white) compared to typically developing (TD) infants (N = 94, 38% female; 88% white). Results demonstrate that infants later diagnosed with ASD were already exhibiting fewer social-communication skills using eye gaze, facial expression, gestures, and sounds at 9 months (effect size: 0.42–0.89). Moreover, three unique patterns of change across distinct social-communication skills were observed within the ASD group. This study documents that observable social-communication differences for infants with ASD are unfolding by 9 months, pointing to a critical window for targeted intervention.  相似文献   

An investigation of increased rates of autism in U.S. public schools     

Donald N. Cardinal  Amy Jane Griffiths  Zachary D. Maupin  Julie Fraumeni‐McBride 《Psychology in the schools》2021,58(1):124-140

This study is intended to enhance our understanding of the dramatic increase in autism prevalence rates across the United States. A robust national and multistate sample of children and youth (5–22 years of age) was gathered and analyzed, using visual and statistical analysis of autism eligibility over a 15‐ to 17‐year period. Although the impact of environmental or genetic influences cannot be entirely ruled out, we identified significant shifts in eligibility trends that substantially contribute to the remarkable increase in autism prevalence. Assessment procedures and criteria for autism have sustained an indelible influence from this diagnostic migration, which has had a lasting impact on public schools. We use this information to provide meaningful implications for practicing psychology in the schools.  相似文献   

Research Summaries for Normal Birth          下载免费PDF全文

Amy M. Romano 《The Journal of perinatal education》2008,17(4):52-56

In this column, the author summarizes four research studies relevant to normal birth. The topics of the studies summarized include the effect of obstetrician anxiety on cesarean surgery rates, the risks of routine membrane sweeping, beneficial effects of doula care for middle-class women, and the lack of reliability of continuous electronic fetal monitoring tracings.  相似文献