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51.
Using a mathematical procedure, we determine appropriate sampling rates for logging heart rate, at a variety of exercise intensities. The mathematical procedure involves correlating exercise and heart rate data to determine a dynamical mathematical model, from which the frequency response of the relationship between exercise intensity and heart rate can be determined. The sampling rate is then straightforwardly deduced by making appropriate measurements on the frequency response curve. We show how careful consideration needs to be given to the choice of dynamical model structure and the work regimen, so that consistent and convincing conclusions can be drawn. We demonstrate that the dynamics of the work-rate/heart-rate system are dependent on the nominal work/heart rate, but a 5-s sampling period, as used in many commercial heart rate monitors, appears to be adequate, especially when some averaging is performed before logging. 相似文献
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Campus communities can be severely affected by a disaster. It is, therefore, important for counselors to establish contingencies for these unexpected events. The authors present a case study outlining specific outcomes of a natural disaster. Results showed that levels of anxiety and irritability declined significantly over the course of an academic year following the event. The Conservation Resources model is used as a framework for addressing the effects of a disaster. 相似文献
54.
Kroese Judith M. Hynd George W. Knight Deborah F. Hiemenz Jennifer R. Hall Josh 《Reading and writing》2000,13(1-2):105-131
Seventy-eight 8-to-12-year-old children (34 ReadingDisabled; 31 Attention-Deficit-Hyperactivity-Disordered; and 13diagnosed normal controls) were given a battery oftests including cognitive, linguistic, academic,phonemic awareness, and memory tests. As part of theacademic battery an 8-point spelling rating scale wasdeveloped (Rating Scale) that resulted in threedifferent scores which reliably discriminated amongthe three groups. Relationships between phonemicawareness, phonological memory, reading and spellingwere explored. Zero-order and second-ordercorrelations were completed with indications thatphonemic awareness tasks (elision, blending, reversal,and segmenting) and phonological memory (WISC-IIIDigit Span) are significantly correlated with readingdecoding and spelling measures with slightly highercorrelations with the Rating Scale. Regressionanalyses resulted in a large proportion of thevariance on reading and spelling tasks accounted forby phonemic awareness (particularly elision andreversal) and phonological memory. The ReadingDisabled group was found to produce more errors thatwere phonetically inaccurate than the other twogroups. The demand of spelling ten ``error' wordsbeyond the RD students' achievement level appeared toelicit greater weaknesses in their phonologicalrecoding abilities than in those of the ADHD ornormally achieving students. 相似文献
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This study investigated the influence of first language (L1) phonology on second language (L2) early reading skills in Sylheti-English bilinguals (N = 58; 48% girls; British Bangladeshi) and their monolingual-English peers (N = 43; 45% girls; 96% White British, 4% multiethnic British) in a diaspora context. Language-specific phonological awareness and nonword repetition were tested at two time points (6;2–7;8 years-old). At Time 1, the bilinguals had lower productive accuracy for phonological sequences that violated their L1 phonology (d = .56; .84), and these skills accounted for a significant amount of variance in their reading accuracy. At Time 2, the language-specific effects were no longer present. These findings highlight the importance of considering language structure in multilingual early literacy development. 相似文献
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Christina Cipriano Michael J. Strambler Lauren H. Naples Cheyeon Ha Megan Kirk Miranda Wood Kaveri Sehgal Almut K. Zieher Abigail Eveleigh Michael McCarthy Melissa Funaro Annett Ponnock Jason C. Chow Joseph Durlak 《Child development》2023,94(5):1181-1204
This article provides a systematic review and meta-analysis of the current evidence for universal school-based (USB) social and emotional learning (SEL) interventions for students in kindergarten through 12th grade available from 2008 through 2020. The sample includes 424 studies from 53 countries, reflecting 252 discrete USB SEL interventions, involving 575,361 students. Results endorsed that, compared to control conditions, students who participate in USB SEL interventions experienced significantly improved skills, attitudes, behaviors, school climate and safety, peer relationships, school functioning, and academic achievement. Significant heterogeneity in USB SEL content, intervention features, context, and implementation quality moderated student experiences and outcomes. Strengths and limitations of this evidence and implications for future USB SEL research, policy, and practice are discussed. 相似文献
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Carolyn A. Greene Kimberly J. McCarthy Ryne Estabrook Lauren S. Wakschlag Margaret J. Briggs-Gowan 《Parenting, science and practice》2020,20(2):141-165
SYNOPSISObjective. This study investigates maternal responsive parenting behaviors as a theorized buffer to the detrimental impact of maternal PTSD symptoms on young children’s depression and anxiety symptoms, disruptive behavior, and stress-related symptoms. Design. A multi-ethnic sample of 242 trauma-exposed mothers and their preschool-aged children was assessed. Maternal responsive parenting behaviors were observed during standardized parent-child interactions. Maternal and child mental health symptoms were reported by mothers. Results. Maternal PTSD symptoms were associated with their responsive parenting behaviors and predicted children’s mental health symptoms. Responsive parenting was inversely associated with children’s depression and stress-related symptoms. Moderation analyses revealed an interactive effect of maternal symptoms and responsive parenting on preschool children’s disruptive behavior and stress-related symptoms. Conclusions. Responsive parenting behaviors can mitigate the ill effects of maternal PTSD symptoms. Nurturing relationships buffer the impact of maternal PTSD. Helping parents’ to sensitively respond to their young children’s distress can support positive outcomes in children. 相似文献